195 results on '"Yi Ling Chen"'
Search Results
2. Mucin 2 silencing promotes colon cancer metastasis through interleukin-6 signaling
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Hui-Ping Hsu, Ming-Derg Lai, Jenq-Chang Lee, Meng-Chi Yen, Tzu-Yang Weng, Wei-Ching Chen, Jung-Hua Fang, and Yi-Ling Chen
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Medicine ,Science - Abstract
Abstract Downregulation of Mucin 2 (MUC2) expression is associated with early carcinogenesis events in colon cancer. MUC2 plays a role in the progression of colon cancer, and reduced MUC2 protein expression correlates with increased interleukin-6 (IL-6) expression. However, the interaction between MUC2 and IL-6 in colorectal cancer metastasis remains unclear. We systematically analyzed MUC2 and IL-6 expression and determined the survival of cancer patients with high or low MUC2 and IL-6 expression using the Oncomine and PrognoScan databases, respectively. This analysis identified downregulation of MUC2 and overexpression of IL-6 in colon cancer but not in normal colon tissue, and this expression pattern was correlated with poor survival of colon cancer patients. We examined the effects of MUC2 on colon cancer metastasis and used vector-mediated application of short hairpin RNA (shRNA) to suppress MUC2 expression. MUC2 suppressed the migration of colon cancer cells in vitro and dramatically diminished liver metastases in vivo. Treatment with IL-6 increased signal transducer and activator of transcription 3 (STAT3) phosphorylation, promoted checkpoint kinase 2 (Chk2) activation, attenuated cAMP response element-binding protein (CREB) phosphorylation, and suppressed E-cadherin protein expression in MUC2-silenced HT-29 cancer cells. Most importantly, MUC2 is a potential prognostic indicator for colon cancer.
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- 2017
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3. FOVEAL DISPLACEMENT IN EYES WITH EPIRETINAL MEMBRANE AFTER VITRECTOMY AND MEMBRANE PEELING
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Yi-Ling Chen, San-Ni Chen, Hsiao-Yu Tung, Hsiao-Wei Tung, and Hsiao-Fan Tung
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Male ,Fovea Centralis ,medicine.medical_specialty ,Visual acuity ,genetic structures ,medicine.medical_treatment ,Vitrectomy ,Basement Membrane ,Postoperative Complications ,Optical coherence tomography ,Foveal ,Ophthalmology ,medicine ,Humans ,Displacement (orthopedic surgery) ,Aged ,Retrospective Studies ,medicine.diagnostic_test ,business.industry ,Internal limiting membrane ,Retinal Detachment ,Epiretinal Membrane ,General Medicine ,medicine.disease ,eye diseases ,Membrane ,Female ,sense organs ,medicine.symptom ,Epiretinal membrane ,business ,Tomography, Optical Coherence - Abstract
PURPOSE To investigate the foveal movement in eyes with epiretinal membrane after vitrectomy and membrane peeling. METHODS A retrospective review of 85 eyes with epiretinal membrane treated with vitrectomy, membrane peeling, and internal limiting membrane removal. Using a self-designed computer program to compare the preoperative and postoperative images of optical coherence tomography to measure the amount of foveal movement. Analyze the relationships between foveal displacement, preoperative and postoperative best-corrected visual acuity, central foveal thickness, and the stage of epiretinal membrane. RESULTS Most of the fovea were nasally shifted. More movement happened in the first month and almost finished in the first year. The greater degree of foveal displacement was correlated with poorer initial visual acuity and thicker central foveal thickness. In considering with the ectopic inner foveal layer staging of epiretinal membrane by structural optical coherence tomography, the foveal realignment is greatest in Stage 4 (394.47 ± 171.44 µm), followed by Stage 1 (251.21 ± 135.40 µm), Stage 2 (235.70 ± 147.51 µm), and Stage 3 (219.86 ± 117.91 µm) at the postoperative 1 month. CONCLUSION Most eyes of epiretinal membrane had the foveal moved nasally after membrane peeling and internal limiting membrane peeling. The larger amount of foveal movement was correlated with poorer initial best-corrected visual acuity. Dystopia fovea may be another factor affecting visual acuity in addition to other biomarkers in optical coherence tomography.
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- 2021
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4. TAZ is Associated with Poor Osteoblast Differentiation of Mesenchymal Stem Cells Under Simulated Microgravity
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Min-Hui Li, Yi-Ling Chen, Kuen-Tze Lin, Shih-Wei Hsu, Yi-Hui Chen, and Shih-Yu Lee
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TAZ ,simulated microgravity ,mesenchymal stem cells ,osteoblast differentiation ,Medicine ,Medical emergencies. Critical care. Intensive care. First aid ,RC86-88.9 - Abstract
Background: Exposure to microgravity (MG) leads to many varieties of physiological alterations, including bone loss. Most studies concur that the impaired osteoblast differentiation of mesenchymal stem cells (MSCs) plays an important role in this bone loss. However, the detailed signaling mechanisms underlying the MG-induced bone loss remain to be further clarified. Materials and Methods: We utilized a rotary cell culture system (RCCS) to study the role of transcriptional coactivator with PDZ-binding motif (TAZ) in simulated MG. Cells were obtained from the calvarial bone of 5-d old Balb/c mice littermates. The phenotype of the MSCs was confirmed by positive expression of Sca-1 and CD29, and negative for CD45. MSCs were cultured in osteo-induction medium in order to promote differentiation towards osteoblasts (OSTs). Results: Upon exposure to MG for 7 days, the abundance of Runx2 was significantly reduced to 0.33 and 0.2-fold in MSCs and OSTs, respectively. In contrast, PPARγ2 was significantly enhanced to 3.8 and 3.0-fold in response to MG in MSCs and OSTs, respectively. TAZ mRNA is decreased to 0.22- and 0.08-fold as compared to normal gravity (NG) in both MSCs and OSTs, respectively. Similarly, the TAZ protein level was also significantly decreased to 0.4-fold in MSCs and to 0.2-fold in OSTs. Moreover, we showed that MG indeed disrupted the interaction of TAZ and Runx2, which disturbed osteoblast-related gene expression. Conclusions: We show for the first time that the TAZ is associated with MG-induced impairment of osteoblast differentiation. Our results also suggest that TAZ plays an important role in MG-induced bone loss.
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- 2015
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5. Pre-existing asthma as a comorbidity does not modify cytokine responses and severity of COVID-19
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David A. Duncan, Julian C. Knight, Paul Klenerman, Ian D. Pavord, Yi-Ling Chen, Graham S. Ogg, Jian Luo, Wentao Chen, Luzheng Xue, and Alexander J. Mentzer
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0301 basic medicine ,Allergy ,medicine.medical_specialty ,medicine.medical_treatment ,Cytokine storm ,03 medical and health sciences ,0302 clinical medicine ,Immune system ,Internal medicine ,Medicine ,CXCL10 ,Respiratory system ,Mortality ,Asthma ,business.industry ,Research ,COVID-19 ,General Medicine ,RC581-607 ,medicine.disease ,Comorbidity ,respiratory tract diseases ,030104 developmental biology ,Cytokine ,030228 respiratory system ,Immunologic diseases. Allergy ,business - Abstract
Background A significant portion of COVID-19 sufferers have asthma. The impacts of asthma on COVID-19 progression are still unclear but a modifying effect is plausible as respiratory viruses are acknowledged to be an important trigger for asthma exacerbations and a different, potentially type-2 biased, immune response might occur. In this study, we compared the blood circulating cytokine response to COVID-19 infection in patients with and without asthma. Methods Plasma samples and clinical information were collected from 80 patients with mild (25), severe (36) or critical (19) COVID-19 and 29 healthy subjects at the John Radcliffe Hospital, Oxford, UK. The concentrations of 51 circulating proteins in the plasma samples were measured with Luminex and compared between groups. Results Total 16 pre-existing asthma patients were found (3 in mild, 10 in severe, and 3 in critical COVID-19). The prevalence of asthma in COVID-19 severity groups did not suggest a clear correlation between asthma and COVID-19 severity. Within the same COVID-19 severity group, no differences were observed between patients with or without asthma on oxygen saturation, CRP, neutrophil counts, and length of hospital stay. The mortality in the COVID-19 patients with asthma (12.5%) was not higher than that in patients without asthma (17.2%). No significant difference was found between asthmatic and non-asthmatic in circulating cytokine response in different COVID-19 severity groups, including the cytokines strongly implicated in COVID-19 such as CXCL10, IL-6, CCL2, and IL-8. Conclusions Pre-existing asthma was not associated with an enhanced cytokine response after COVID-19 infection, disease severity or mortality.
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- 2021
6. Chorioretinal Atrophy in Punctate Inner Choroidopathy/multifocal Choroiditis: A Five-year Follow-up Study
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Yen-Chih Chen, Yi-Ling Chen, and San-Ni Chen
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medicine.medical_specialty ,Choroiditis ,genetic structures ,Multifocal choroiditis ,03 medical and health sciences ,0302 clinical medicine ,Ophthalmology ,medicine ,Humans ,Immunology and Allergy ,In patient ,Fluorescein Angiography ,Retrospective Studies ,030203 arthritis & rheumatology ,White Dot Syndromes ,business.industry ,Multifocal Choroiditis ,Five year follow up ,Chorioretinal atrophy ,Choroid Diseases ,humanities ,030221 ophthalmology & optometry ,sense organs ,Atrophy ,business ,Punctate inner choroidopathy ,Tomography, Optical Coherence ,Follow-Up Studies - Abstract
To report the 5-year results of chorioretinal atrophy (CRA) progression in patients with punctate inner choroidopathy (PIC) or multifocal choroiditis (MFC).A retrospective study included PIC/MFC patients with secondary CRA formation. The area of CRA was measured and the progression rate was calculated. Multiple regression analysis was performed to investigate risk factors associated with CRA progression.Forty-five eyes of 36 patients were included. The mean CRA size significantly increased after an average of 4.83 years of follow-up with progression rate of 0.69 mmSignificant CRA enlargement is noted in PIC/MFC patients after 5 years of follow-up. The progression rate is associated with axial length and initial PIC numbers. Aggressive treatment is suggested for eyes with more initial lesion numbers and longer axial length to control the faster CRA progression.
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- 2021
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7. Upregulation of peroxisome proliferator-activated receptor-α and the lipid metabolism pathway promotes carcinogenesis of ampullary cancer
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Nam Nhut Phan, Yi Ling Chen, Yan Shen Shan, Tzu Wen Wang, Ming Derg Lai, Hui Ping Hsu, Chih-Yang Wang, and Ying Jui Chao
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Male ,Ampulla of Vater ,medicine.drug_class ,Carcinogenesis ,Bioinformatics ,Common Bile Duct Neoplasms ,Datasets as Topic ,Peroxisome proliferator-activated receptor ,Antineoplastic Agents ,Adenocarcinoma ,Biology ,Retinoid X receptor ,medicine.disease_cause ,Inhibitory Concentration 50 ,03 medical and health sciences ,0302 clinical medicine ,Cell Line, Tumor ,PPARA gene ,medicine ,Periampullary cancer ,Humans ,PPAR alpha ,PPARA Gene ,KEGG ,Oligonucleotide Array Sequence Analysis ,chemistry.chemical_classification ,Gene Expression Profiling ,Histone deacetylase inhibitor ,Computational Biology ,General Medicine ,people.cause_of_death ,Up-Regulation ,Gene Expression Regulation, Neoplastic ,Trichostatin A ,Ampullary cancer ,Lipid metabolism ,chemistry ,Chemotherapy, Adjuvant ,Cancer research ,Female ,030211 gastroenterology & hepatology ,Drug Screening Assays, Antitumor ,people ,medicine.drug ,Research Paper - Abstract
Ampullary cancer is a rare periampullary cancer currently with no targeted therapeutic agent. It is important to develop a deeper understanding of the carcinogenesis of ampullary cancer. We attempted to explore the characteristics of ampullary cancer in our dataset and a public database, followed by a search for potential drugs. We used a bioinformatics pipeline to analyze complementary (c)DNA microarray data of ampullary cancer and surrounding normal duodenal tissues from five patients. A public database from the National Center for Biotechnology Information Gene Expression Omnibus (NCBI GEO) was applied for external validation. Bioinformatics tools used included the Gene Set Enrichment Analysis (GSEA), Database for Annotation, Visualization and Integrated Discovery (DAVID), MetaCore, Kyoto Encyclopedia of Genes and Genomes (KEGG), Hallmark, BioCarta, Reactome, and Connectivity Map (CMap). In total, 9097 genes were upregulated in the five ampullary cancer samples compared to normal duodenal tissues. From the MetaCore analysis, genes of peroxisome proliferator-activated receptor alpha (PPARA) and retinoid X receptor (RXR)-regulated lipid metabolism were overexpressed in ampullary cancer tissues. Further a GSEA of the KEGG, Hallmark, Reactome, and Gene Ontology databases revealed that PPARA and lipid metabolism-related genes were enriched in our specimens of ampullary cancer and in the NCBI GSE39409 database. Expressions of PPARA messenger (m)RNA and the PPAR-α protein were higher in clinical samples and cell lines of ampullary cancer. US Food and Drug Administration (FDA)-approved drugs, including alvespimycin, trichostatin A (a histone deacetylase inhibitor), and cytochalasin B, may have novel therapeutic effects in ampullary cancer patients as predicted by the CMap analysis. Trichostatin A was the most potent agent for ampullary cancer with a half maximal inhibitory concentration of < 0.3 μM. According to our results, upregulation of PPARA and lipid metabolism-related genes are potential pathways in the carcinogenesis and development of ampullary cancer. Results from the CMap analysis suggested potential drugs for patients with ampullary cancer.
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- 2021
8. Cancer-Derived Transforming Growth Factor-β Modulates Tumor-Associated Macrophages in Ampullary Cancer
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Ying Jui Chao, Yih Jyh Lin, Yan Shen Shan, Nam Nhut Phan, Li Chin Cheng, Chih-Yang Wang, Yi Ling Chen, Hui Ping Hsu, Tzu Wen Wang, and Ming Derg Lai
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0301 basic medicine ,Cluster of differentiation ,CD68 ,Cancer ,Transforming growth factor beta ,Biology ,medicine.disease ,Immunosurveillance ,03 medical and health sciences ,030104 developmental biology ,0302 clinical medicine ,Oncology ,030220 oncology & carcinogenesis ,Cancer cell ,Cancer research ,biology.protein ,medicine ,Immunohistochemistry ,Pharmacology (medical) ,Transforming growth factor - Abstract
Purpose Tumor-associated macrophages (TAMs) originate from monocytes and differentiate into mature macrophages. The interaction between cancer cells and TAMs promotes tumor growth and suppresses immunosurveillance. However, this phenomenon has seldom been observed in ampullary cancer. Patients and methods TAMs in ampullary cancer were investigated using immunohistochemical (IHC) staining of cancer tissues. Bioinformatic analysis of data from the Gene Expression Omnibus (GEO) database revealed transforming growth factor-beta (TGF-β) signaling in ampullary cancer. The complementary DNA microarray of cancer was compared with adjacent normal duodenum and enzyme-linked immunosorbent assay of serum was used to verify TGF-β signaling in patients. The THP-1 cell line was activated in vitro to imitate M2 TAMs. ClueGo and CluePedia software were operated to simulate TGF-β-related networks in ampullary cancer. Results The IHC study revealed that the majority of TAMs inside ampullary cancer were cluster of differentiation (CD)163+ cells and that the expression of mature CD68+ macrophages was correlated with advanced cancer stage. Bioinformatics analysis revealed that TGF-β and its downstream signaling were significantly upregulated. To verify our bioinformatics-derived predictions, we performed several experiments and demonstrated that increased TGF-β expression was detected in the cDNA microarray. Higher serum levels of TGF-β were correlated with fewer CD68+ and more inducible nitric oxide synthase macrophages in ampullary cancer. Treatment with TGF-β induced modulation of THP-1-derived macrophages. Conclusion The present study demonstrates that TGF-β modulates macrophage activity in ampullary cancer. Targeting TGF-β could be an approach to activating immunosurveillance.
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- 2020
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9. Hepatic 31 P‐magnetic resonance spectroscopy identified the impact of melatonin‐pretreated mitochondria in acute liver ischaemia‐reperfusion injury
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Yi-Ching Chu, John Y. Chiang, Sheung-Fat Ko, Hon-Kan Yip, Chung-Cheng Huang, Yi-Ling Chen, Pei-Hsun Sung, and Chi-Ruei Huang
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0301 basic medicine ,Liver injury ,medicine.medical_specialty ,Adult male ,business.industry ,Ischaemia-reperfusion injury ,Liver protein ,Cell Biology ,Nuclear magnetic resonance spectroscopy ,Mitochondrion ,medicine.disease ,medicine.disease_cause ,Melatonin ,03 medical and health sciences ,030104 developmental biology ,0302 clinical medicine ,Endocrinology ,030220 oncology & carcinogenesis ,Internal medicine ,Molecular Medicine ,Medicine ,business ,Oxidative stress ,medicine.drug - Abstract
Acute liver ischaemia-reperfusion injury (IRI), commonly encountered during liver resection and transplantation surgery, is strongly associated with unfavourable clinical outcome. However, a prompt and accurate diagnosis and the treatment of this entity remain formidable challenges. This study tested the hypothesis that 31 P-magnetic resonance spectroscopy (31 P-MRS) findings could provide reliable living images to accurately identify the degree of acute liver IRI and melatonin-pretreated mitochondria was an innovative treatment for protecting the liver from IRI in rat. Adult male SD rats were categorized into group 1 (sham-operated control), group 2 (IRI only) and group 3 (IRI + melatonin [ie mitochondrial donor rat received intraperitoneal administration of melatonin] pretreated mitochondria [10 mg/per rat by portal vein]). By the end of study period at 72 hours, 31 P-MRS showed that, as compared with group 1, the hepatic levels of ATP and NADH were significantly lower in group 2 than in groups 1 and 3, and significantly lower in group 3 than in group 1. The liver protein expressions of mitochondrial-electron-transport-chain complexes and mitochondrial integrity exhibited an identical pattern to 31 P-MRS finding. The protein expressions of oxidative stress, inflammatory, cellular stress signalling and mitochondrial-damaged biomarkers displayed an opposite finding of 31 P-MRS, whereas the protein expressions of antioxidants were significantly progressively increased from groups 1 to 3. Microscopic findings showed that the fibrotic area/liver injury score and inflammatory and DNA-damaged biomarkers exhibited an identical pattern of cellular stress signalling. Melatonin-pretreated mitochondria effectively protected liver against IRI and 31 P-MRS was a reliable tool for measuring the mitochondrial/ATP consumption in living animals.
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- 2020
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10. PODXL2 maintains cellular stemness and promotes breast cancer development through the Rac1/Akt pathway
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Hui Ping Hsu, Chung Yen Li, Chung Chieh Chiao, Yi Ling Chen, Zhengda Sun, Nam Nhut Phan, Meng-Chi Yen, Chih-Yang Wang, Jui-Hsiang Hung, Yi Yi Lin, Tzu Yang Weng, and Ming Derg Lai
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Homeobox protein NANOG ,Epithelial-Mesenchymal Transition ,Bioinformatics ,Cancer stem cells ,Sialoglycoproteins ,Breast Neoplasms ,Biology ,03 medical and health sciences ,0302 clinical medicine ,Breast cancer ,Cancer stem cell ,Cell Line, Tumor ,PODXL2 ,medicine ,Humans ,PI3K/AKT/mTOR pathway ,Cell Cycle ,Cancer ,Computational Biology ,General Medicine ,medicine.disease ,Invadopodia ,Cancer research ,Neoplastic Stem Cells ,030211 gastroenterology & hepatology ,Female ,Stem cell ,Breast carcinoma ,Proto-Oncogene Proteins c-akt ,Research Paper - Abstract
The cluster of differentiation 34 (CD34) family, which includes CD34, podocalyxin-like protein 1 (PODXL), and PODXL2, are type-I transmembrane sialomucins and markers of hematopoietic stem cells (HSCs) and vascular-associated tissues. CD34 family proteins are expressed by endothelial cells and hematopoietic precursors. PODXL is well known to be associated with invadopodia formation and to promote the epithelial-mesenchymal transition, tumor migration and invasion. PODXL expression was correlated with poor survival of cancer patients. However, the role of PODXL2 in cancer has been less fully explored. To reveal the novel role of PODXL2 in breast cancer, the present study evaluated PODXL2 levels in relation to clinical outcomes of cancer patients by performing a bioinformatics analysis using the Oncomine database, Kaplan-Meier plots, and the CCLE database. Empirical validation of bioinformatics predictions was conducted utilizing the short hairpin (sh)-RNA silencing method for PODXL2 in the BT474 invasive ductal breast carcinoma cell line. The bioinformatics analysis revealed that PODXL2 overexpression was correlated with poor survival of breast cancer patients, suggesting an oncogenic role of PODXL2 in breast carcinoma. In a validation experiment, knockdown of PODXL2 in BT474 cells slightly influenced cell proliferation, suppressed migration, and inhibited expressions of downstream molecules, including Ras-related C3 botulinum toxin substrate 1 (Rac1), phosphorylated (p)-Akt (S473), and p-paxillin (Y31) proteins. In addition, knockdown of PODXL2 reduced expression levels of cancer stem cell (CSC) markers, including Oct-4 and Nanog, and the breast CSC marker aldehyde dehydrogenase 1 (ALDH1). Collectively, our present study demonstrated that PODXL2 plays a crucial role in cancer development and could serve as a potential prognostic biomarker in breast cancer patients.
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- 2020
11. MicroRNA-214 modulates the senescence of vascular smooth muscle cells in carotid artery stenosis
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Cheuk-Kwan Sun, Yuan-Ping Lin, Tien-Hung Huang, Yi-Ling Chen, Hon-Kan Yip, and Jiunn-Jye Sheu
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Male ,0301 basic medicine ,Vascular smooth muscle ,Angiogenesis ,Cell ,Proliferation ,030204 cardiovascular system & hematology ,Exosomes ,Muscle, Smooth, Vascular ,chemistry.chemical_compound ,0302 clinical medicine ,Medicine ,Carotid Stenosis ,lcsh:QD415-436 ,Hypoxia ,Cells, Cultured ,Cellular Senescence ,Genetics (clinical) ,medicine.anatomical_structure ,Molecular Medicine ,Female ,Disease Susceptibility ,Research Article ,Senescence ,Myocytes, Smooth Muscle ,lcsh:Biochemistry ,03 medical and health sciences ,microRNA ,Genetics ,Vascular smooth muscle cells ,Animals ,Humans ,Antagomir ,microRNA-214 ,Molecular Biology ,Cell Proliferation ,business.industry ,Cell growth ,lcsh:RM1-950 ,Cholesterol, LDL ,Rats ,Telomere ,MicroRNAs ,030104 developmental biology ,lcsh:Therapeutics. Pharmacology ,chemistry ,Cancer research ,business ,Biomarkers - Abstract
Background MicroRNAs control gene expression by post-transcriptional inhibition. Dysregulation of the expressions of miR-199a/214 cluster has been linked to cardiovascular diseases. This study aimed at identifying potential microRNAs related to vascular senescence. Methods Seven candidate microRNAs (miR-19a, −20a, −26b, −106b, − 126, − 214, and − 374) related to cell proliferation were tested for their expressions under CoCl2-induced hypoxia in vascular smooth muscle cells (VSMCs). After identification of miR-214 as the candidate microRNA, telomere integrity impairment and cell cycle arrest were examined in VSMCs by using miR-214 mimic, AntagomiR, and negative controls. To investigate the clinical significance of miR-214 in vascular diseases, its plasma level from patients with carotid artery stenosis (CAS) was assessed by quantitative reverse transcriptase polymerase chain reaction (qRT-PCR). Results CoCl2 treatment for 48 h suppressed cell proliferation and angiogenesis as well as enhanced cell senescence in VSMCs. Besides, miR-214 level was elevated in both intracellular and exosome samples of VSMCs after CoCl2 treatment. Manipulating miR-214 in VSMCs demonstrated that miR-214 not only inhibited angiogenic and proliferative capacities but also promoted senescence through the suppression of quaking. Additionally, circulating miR-214 level was upregulated in CAS patients with high low-density lipoprotein cholesterol (LDL-C) value. Conclusion Our findings suggested that miR-214 plays a role in the modulation of VSMC angiogenesis, proliferation, and senescence with its plasma level being increased in CAS patients with elevated LDL-C value, implying that it may be a vascular senescence marker and a potential therapeutic target for vascular diseases.
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- 2020
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12. Safety and efficacy of intrarenal arterial autologous CD34+ cell transfusion in patients with chronic kidney disease: A randomized, open-label, controlled phase II clinical trial
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Chih-Chao Yang, Ben-Chung Cheng, Mel S. Lee, Pei-Hsun Sung, Yi-Ling Chen, Yi-Chen Li, and Hon-Kan Yip
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0301 basic medicine ,medicine.medical_specialty ,medicine.medical_treatment ,Urology ,Renal function ,Antigens, CD34 ,Human Clinical Articles ,CD34+ cell therapy ,Endothelial progenitor cell ,angiogenesis ,03 medical and health sciences ,chemistry.chemical_compound ,0302 clinical medicine ,Pharmacotherapy ,Human Clinical Article ,circulating endothelial progenitor cells ,medicine ,Humans ,Prospective Studies ,Renal Insufficiency, Chronic ,lcsh:QH573-671 ,Dialysis ,Aged ,Endothelial Progenitor Cells ,lcsh:R5-920 ,Creatinine ,Proteinuria ,lcsh:Cytology ,business.industry ,Cell Biology ,General Medicine ,Middle Aged ,medicine.disease ,Clinical trial ,030104 developmental biology ,chemistry ,medicine.symptom ,lcsh:Medicine (General) ,business ,chronic kidney disease ,030217 neurology & neurosurgery ,Developmental Biology ,Kidney disease - Abstract
Background This was a randomized, open‐label, controlled phase II clinical trial to investigate the safety, efficacy, and outcomes of intrarenal artery infusion of autologous peripheral‐blood‐derived CD34+ cells for patients with chronic kidney disease (CKD; ie, stage III or IV). Materials and Methods Between October 2016 and July 2018, 52 consecutive patients with CKD at stage III or IV were randomly allocated into a treatment group (TG; 2.5 × 107 cells for each intrarenal artery; n = 26) and a control group (CG; standardized pharmacotherapy only; n = 26). The primary endpoints included safety and change of creatinine level/creatinine clearance. The secondary endpoints were 12‐month combined unfavorable clinical outcomes (defined as dialysis or death), improvement in proteinuria, and CD34+ cell‐related adverse events. Results All patients were uneventfully discharged after CD34+ cell therapy. The baseline endothelial progenitor cell (EPC) populations did not differ between TG and CG (P > .5). Flow cytometric analysis showed increases in circulating EPC (ie, CD34+KDR+CD45dim/ CD34+CD133+CD45dim/CD31+CD133+CD45dim/CD34+CD133+KDR+/CD133+) and hematopoietic stem cell (CD34+) populations after granulocyte‐colony stimulating factor treatment (all P .1). Conclusion CD34+ cell therapy was safe and improved 1‐year outcome., Flowchart illustrating the screening, exclusion, enrollment, assignment, allocation, ?follow‐up, and analysis of this phase II clinical trial. CDK, chronic kidney disease; ESRD, ?end‐stage? renal disease; HF, heart failure; MI, myocardial infarction.
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- 2020
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13. Intravenous administration of iPS‐MSCSPIONsmobilized into CKD parenchyma and effectively preserved residual renal function in CKD rat
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Mel S. Lee, Chih-Chao Yang, Kuan-Hung Chen, Christopher Glenn Wallace, Pei-Lin Shao, Yi-Ling Chen, Yi-Ching Chu, Jiunn-Jye Sheu, Chi-Ruei Huang, Pei-Hsun Sung, Hon-Kan Yip, and Sheung-Fat Ko
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0301 basic medicine ,Creatinine ,medicine.medical_specialty ,Kidney ,business.industry ,medicine.medical_treatment ,Urology ,Renal function ,Cell Biology ,Haematoxylin ,Nephrectomy ,03 medical and health sciences ,chemistry.chemical_compound ,030104 developmental biology ,0302 clinical medicine ,medicine.anatomical_structure ,chemistry ,030220 oncology & carcinogenesis ,Parenchyma ,medicine ,Molecular Medicine ,Trichrome stain ,Synaptopodin ,business - Abstract
This study traced intravenously administered induced pluripotent stem cell (iPSC)-derived mesenchymal stem cells (MSC) and assessed the impact of iPSC-MSC on preserving renal function in SD rat after 5/6 nephrectomy. The results of in vitro study showed that FeraTrack™Direct contrast particles (ie intracellular magnetic labelling) in the iPSC-MSC (ie iPS-MSCSPIONs ) were clearly identified by Prussian blue stain. Adult-male SD rats (n = 40) were categorized into group 1 (SC), group 2 [SC + iPS-MSCSPIONs (1.0 × 106 cells)/intravenous administration post-day-14 CKD procedure], group 3 (CKD), group 4 [CKD + iPS-MSCSPIONs (0.5 × 106 cells)] and group 5 [CKD + iPS-MSCSPIONs (1.0 × 106 cells)]. By day-15 after CKD induction, abdominal MRI demonstrated that iPS-MSCSPIONs were only in the CKD parenchyma of groups 4 and 5. By day 60, the creatinine level/ratio of urine protein to urine creatinine/kidney injury score (by haematoxylin and eosin stain)/fibrotic area (Masson's trichrome stain)/IF microscopic finding of kidney injury molecule-1 expression was lowest in groups 1 and 2, highest in group 3, and significantly higher in group 4 than in group 5, whereas IF microscopic findings of podocyte components (ZO-1/synaptopodin) and protein levels of anti-apoptosis ((Bad/Bcl-xL/Bcl-2) exhibited an opposite pattern to creatinine level among the five groups (all P < .0001). The protein expressions of cell-proliferation signals (PI3K/p-Akt/m-TOR, p-ERK1/2, FOXO1/GSK3β/p90RSK), apoptotic/DNA-damage (Bax/caspases8-10/cytosolic-mitochondria) and inflammatory (TNF-α/TNFR1/TRAF2/NF-κB) biomarkers displayed an identical pattern to creatinine level among the five groups (all P < .0001). The iPS-MSCSPIONs that were identified only in CKD parenchyma effectively protected the kidney against CKD injury.
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- 2020
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14. Impact of urine osmolality/urine sodium on the timing of diuretic phase and non-invasive ventilation support: Differences from late preterm to term neonates
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Yi-Ling Chen, Li-Yi Tsai, Shu-Chi Mu, and Yu-Hsuan Chien
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Male ,Time Factors ,medicine.medical_treatment ,Physiology ,Diuresis ,Urine ,Urine sodium ,medicine ,Humans ,Osmole ,Noninvasive Ventilation ,Respiratory distress ,business.industry ,Osmolar Concentration ,Sodium ,Infant, Newborn ,lcsh:RJ1-570 ,lcsh:Pediatrics ,Pediatrics, Perinatology and Child Health ,Breathing ,Urine osmolality ,Female ,Diuretic ,business ,Infant, Premature - Abstract
Background: Extracellular fluid retained in the lungs lead to respiratory distress in both late preterm (LP) and term neonates. The relationship between urine parameters toward the diuresis and the duration of ventilation postnatally is unknown. To find the correlation between the diuretic phase with urine parameters in the first 4 days after birth and the duration of non-invasive ventilation (NIV). Methods: Serial measurements of urine osmolality (Uosm), urine sodium (UNa), and urine output (U/O) in neonates were collected at 5 time periods (T1:0–12 postnatal hours, T2:12–24 postnatal hours, T3:24–48 postnatal hours, T4:48–72 postnatal hours, T5:72–96 postnatal hours) were recorded. The correlations were analyzed in late preterm and term neonates. Results: Ninety-seven neonates were included. Negative correlation between Uosm and U/O were observed. LP neonates (n=26) and term neonates (n=71) had differences with Uosm at T2, UNa at T4, T5, and U/O at T2, T3. Factors of U/O < 1 ml/kg/hr at T1 (odds ratio (OR) = 20.0; 95% confidence interval (CI) 1.796-222.776; p = 0.015) or Uosm > 273 mOsm/L at T1 (OR = 9.0; 95% CI 1.031-78.574; p = 0.047) in LP neonates and UNa > 26.5 mEq/L at T5 (OR = 23.625; 95% CI 2.683-79.276; p < 0.01) in term neonates were associated with prolonged NIV use (> 120 hours). Conclusion: We speculate the significant correlation between Uosm/UNa and the diuretic phase. The LP neonates acquire earlier diuretic phase than the term neonates. The Uosm/UNa in the first few postnatal days had the correlation with the duration of NIV support. Keywords: Diuretic phase, Neonate, Non-invasive ventilation, Urine osmolality, Urine sodium
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- 2020
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15. Long-term Outcome of Zonal Outer Retinopathy in Punctate Inner Choroidopathy or Multifocal Choroiditis
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San-Ni Chen, Benjamin Chi-Lan Yang, and Yi-Ling Chen
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Adult ,Indocyanine Green ,Male ,medicine.medical_specialty ,Computed Tomography Angiography ,Visual Acuity ,Methylprednisolone ,Multifocal choroiditis ,Young Adult ,03 medical and health sciences ,0302 clinical medicine ,Ophthalmology ,medicine ,Humans ,Immunology and Allergy ,In patient ,Fluorescein Angiography ,Coloring Agents ,Scotoma ,Glucocorticoids ,Retrospective Studies ,030203 arthritis & rheumatology ,White Dot Syndromes ,business.industry ,Multifocal Choroiditis ,Retrospective cohort study ,medicine.disease ,humanities ,Treatment Outcome ,030221 ophthalmology & optometry ,Female ,sense organs ,Visual Fields ,business ,Punctate inner choroidopathy ,Tomography, Optical Coherence ,Follow-Up Studies ,Retinopathy - Abstract
Purpose: To report the long-term prognosis of punctate inner choroidopathy (PIC) or multifocal choroiditis (MFC) and associated zonal outer retinopathy (ZOR).Method: Retrospective study in patients...
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- 2020
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16. Knockdown of serine/threonine-protein kinase 24 promotes tumorigenesis and myeloid-derived suppressor cell expansion in an orthotopic immunocompetent gastric cancer animal model
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Jung Hua Fang, Chih-Yang Wang, Hui Ping Hsu, Yi Ling Chen, and Pei Yin Hsieh
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0301 basic medicine ,Cancer Model ,germinal center kinase ,Serine threonine protein kinase ,Biology ,medicine.disease_cause ,03 medical and health sciences ,serine/threonine-protein kinase 24 ,0302 clinical medicine ,medicine ,Gene silencing ,orthotopic model of gastric cancer ,Tumor microenvironment ,gastric cancer ,Cancer ,Germinal center ,myeloid-derived suppressor cells ,medicine.disease ,tumorigenesis ,030104 developmental biology ,Oncology ,030220 oncology & carcinogenesis ,Cancer research ,Myeloid-derived Suppressor Cell ,Carcinogenesis ,Research Paper - Abstract
A higher incidence of gastric cancer has been found in East Asia compared to the incidence in other regions. Gastric cancer patients have a poor prognosis due to distant metastasis and advanced cancer stages. Tumor escape pathways include the expansion of the immunosuppressive myeloid-derived suppressor cells (MDSCs) in the tumor microenvironment. We have successfully established an orthotopic immunocompetent gastric cancer model in C57BL/6 mice. The cell line is named M12 and was deposited at the Bioresource Collection and Research Center of Taiwan on Sep. 13, 2016 (Patent No. I604054). The orthotopic animal model of gastric cancer has similar biological characteristics as human gastric cancer. Serine/threonine-protein kinase 24 (STK24) is a member of the germinal center kinase (GCK)-III family. GCKs participate in cancer and immunological disorders. The effects of STK24 in gastric cancer are less well understood. CRISPR (clustered regularly interspaced short palindromic repeats)/Cas9 technology was used to induce a STK24 genetic knockout at the genomic DNA level in tumor cells. The knockdown of the STK24 gene increased the tumor growth in an orthotopic model of gastric cancer. The STK24 gene silencing in tumors induced the expansion of CD11b+Ly6C+ cells and F4/80+ macrophages in vivo. To our knowledge, we have developed the first orthotopic transplantable model of gastric cancer in syngeneic inbred mice. Our results further indicate that STK24 is important for immune regulation during the tumorigenesis of gastric cancer.
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- 2020
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17. Relationship of urinary phthalate metabolites with serum thyroid hormones in pregnant women and their newborns: a prospective birth cohort in Taiwan.
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Fu-Chen Kuo, Sheng-Wen Su, Chia-Fang Wu, Meng-Chuan Huang, Jentaie Shiea, Bai-Hsiu Chen, Yi-Ling Chen, and Ming-Tsang Wu
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Medicine ,Science - Abstract
The purpose of this study was to examine the relationship of phthalates exposure with thyroid function in pregnant women and their newborns.One hundred and forty-eight Taiwanese maternal and infant pairs were recruited from E-Da hospital in southern Taiwan between 2009 and 2010 for analysis. One-spot urine samples and blood samples in the third trimester of pregnant women and their cord blood samples at delivery were collected. Nine phthalate metabolites in urine were determined by triple quadrupole liquid chromatography tandem mass spectrometry, whereas serum from pregnant women and their cord blood were used to measure thyroid profiles (thyroid-stimulating hormone [TSH], thyroxine, free thyroxine, and triiodothyronine) by radioimmunoassay.Median levels of urinary mono-n-butyl phthalate, mono-ethyl phthalate, and mono-(2-ethyl-5-oxohexyl) phthalate (μg/g creatinine) were the three highest phthalate metabolites, which were 37.81, 34.51, and 21.73, respectively. Using Bonferroni correction at a significance of < 0.006, we found that urinary mono-benzyl phthalate (MBzP) levels were significantly and negatively associated with serum TSH in cord blood (β = -2.644, p = 0.003).Maternal urinary MBzP, of which the parental compound is butylbenzyl phthalate, may affect TSH activity in newborns. The alteration of thyroid homeostasis by certain phthalates in the early life, a critical period for neurodevelopment, is an urgent concern.
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- 2015
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18. Long-Term Outcome of Punctate Inner Choroidopathy or Multifocal Choroiditis with Active Choroidal Neovascularization Managed with Intravitreal Bevacizumab
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Yi-Ling Chen, San-Ni Chen, and Benjamin Chi-Lan Yang
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Adult ,Male ,medicine.medical_specialty ,Time Factors ,Adolescent ,genetic structures ,Bevacizumab ,Fundus Oculi ,Optic Disk ,Visual Acuity ,Angiogenesis Inhibitors ,Multifocal choroiditis ,Young Adult ,03 medical and health sciences ,0302 clinical medicine ,Ophthalmology ,Humans ,Immunology and Allergy ,Medicine ,Fluorescein Angiography ,Intravitreal bevacizumab ,Aged ,Retrospective Studies ,030203 arthritis & rheumatology ,White Dot Syndromes ,Choroid ,business.industry ,Multifocal Choroiditis ,Middle Aged ,Choroidal Neovascularization ,eye diseases ,Receptors, Vascular Endothelial Growth Factor ,Choroidal neovascularization ,Intravitreal Injections ,030221 ophthalmology & optometry ,Female ,sense organs ,medicine.symptom ,business ,Punctate inner choroidopathy ,Tomography, Optical Coherence ,Follow-Up Studies ,medicine.drug - Abstract
Purpose: To evaluate the long-term outcome of active choroidal neovascularization (CNV) in punctate inner choroidopathy (PIC) or multifocal choroiditis (MFC) after intravitreal bevacizumab treatmen...
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- 2019
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19. The Effectiveness of an Intervention Program for Fathers of Hospitalized Preterm Infants on Paternal Support and Attachment 1 Month After Discharge
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Tzu Ying Lee, Kuan Chia Lin, Meei Ling Gau, and Yi Ling Chen
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Male ,medicine.medical_specialty ,Time Factors ,Taiwan ,Directive Counseling ,Intervention group ,Critical Care Nursing ,Pediatrics ,Statistics, Nonparametric ,Hospitals, University ,Fathers ,Reference Values ,Intensive Care Units, Neonatal ,Intervention (counseling) ,Maternity and Midwifery ,medicine ,Humans ,Father-Child Relations ,Routine care ,Intervention program ,business.industry ,Infant, Newborn ,After discharge ,Patient Discharge ,United States ,Treatment Outcome ,Case-Control Studies ,Family medicine ,Linear Models ,Comparison study ,Female ,Special care ,business ,Child, Hospitalized ,Infant, Premature ,Stress, Psychological ,Follow-Up Studies ,Program Evaluation - Abstract
This aim of this study was to evaluate the effectiveness of an early intervention program to reduce paternal stress and increase fathering ability after a preterm infant's admission to the special care nursery and to influence paternal support for the mother and the father's attachment to the infant 1 month later. A historical comparison study was designed and an empowerment intervention strategy for the fathers of preterm infants was implemented. Forty-one fathers of preterm infants in the control group received routine care, and 41 fathers of preterm infants in the intervention group received an early fatherhood intervention program in the special care nursery. Both groups were followed 1 month after discharge. Fathers in the intervention group had significantly lower stress and higher fathering ability at their infant's discharge, provided better support to the mother in child-rearing, and had better father-infant attachment 1 month after discharge than fathers in the control group. Under cultural and hospitals' common practices, such an intervention can help the father to establish his fatherhood early and later enhance his supporting role to the mother and his relationship to the preterm infant. Nurses should include teaching childcare to fathers of preterm infants.
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- 2019
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20. Clinical significance of olfactory dysfunction in patients of COVID-19
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Che-Hsin Lee, Chin-Chuan Chang, Yi-Ming Arthur Chen, Yi-Ling Chen, Cheng-Hui Yuan, Shu-Min Chang, Ming-Hui Yang, Ya-Ju Hsieh, Yu-Chang Tyan, and Sheng-Yow Ho
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medicine.medical_specialty ,Anosmia ,Disease ,030204 cardiovascular system & hematology ,03 medical and health sciences ,Olfaction Disorders ,Taste Disorders ,0302 clinical medicine ,COVID-19 Testing ,Hyposmia ,Pandemic ,Medicine ,Humans ,Clinical significance ,Intensive care medicine ,business.industry ,SARS-CoV-2 ,Electronic journal ,COVID-19 ,General Medicine ,Dysgeusia ,Taste disorder ,030220 oncology & carcinogenesis ,Angiotensin-Converting Enzyme 2 ,medicine.symptom ,business - Abstract
Background Currently, as the coronavirus disease (COVID-19) has become a pandemic, rapidly obtaining accurate information of patient symptoms and their progression is crucial and vital. Although the early studies in China have illustrated that the representative symptoms of COVID-19 include (dry) cough, fever, headache, fatigue, gastrointestinal discomfort, dyspnea, and muscle pain, there is increasing evidence to suggest that olfactory and taste disorder are related to the COVID-19 pandemic. Therefore, we conduct this study to review the present literature about the correlation between anosmia or dysgeusia and COVID-19. Methods A comprehensive literature search in 2020 of the electronic journal databases, mainly PubMed or Web of Science, was performed using the keywords COVID-19 or severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), with hyposmia, anosmia, dysgeusia, olfactory disorder, or olfactory dysfunction. The country, study period, case number, inpatient or outpatient medical visit, evaluation method (subjective complaints of dysfunction or objective evaluation), and occurrence rate of olfactory or gustatory function were reviewed. Results Many studies reported that the recoverable olfactory or gustatory dysfunction may play an important role as the early clinical symptom of COVID-19. It is associated with better prognosis, although further investigation and validation should be carried out. Conclusion Studies have shown that smell and taste disturbances may represent an early symptom of COVID-19 and healthcare professionals must be very vigilant when managing patients with these symptoms. In the pandemic era, this implies testing for COVID-19 by healthcare workers with full personal protective equipment.
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- 2021
21. A blood atlas of COVID-19 defines hallmarks of disease severity and specificity
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David J. Ahern, Zhichao Ai, Mark Ainsworth, Chris Allan, Alice Allcock, Brian Angus, M. Azim Ansari, Carolina V. Arancibia-Cárcamo, Dominik Aschenbrenner, Moustafa Attar, J. Kenneth Baillie, Eleanor Barnes, Rachael Bashford-Rogers, Archana Bashyal, Sally Beer, Georgina Berridge, Amy Beveridge, Sagida Bibi, Tihana Bicanic, Luke Blackwell, Paul Bowness, Andrew Brent, Andrew Brown, John Broxholme, David Buck, Katie L. Burnham, Helen Byrne, Susana Camara, Ivan Candido Ferreira, Philip Charles, Wentao Chen, Yi-Ling Chen, Amanda Chong, Elizabeth A. Clutterbuck, Mark Coles, Christopher P. Conlon, Richard Cornall, Adam P. Cribbs, Fabiola Curion, Emma E. Davenport, Neil Davidson, Simon Davis, Calliope A. Dendrou, Julie Dequaire, Lea Dib, James Docker, Christina Dold, Tao Dong, Damien Downes, Hal Drakesmith, Susanna J. Dunachie, David A. Duncan, Chris Eijsbouts, Robert Esnouf, Alexis Espinosa, Rachel Etherington, Benjamin Fairfax, Rory Fairhead, Hai Fang, Shayan Fassih, Sally Felle, Maria Fernandez Mendoza, Ricardo Ferreira, Roman Fischer, Thomas Foord, Aden Forrow, John Frater, Anastasia Fries, Veronica Gallardo Sanchez, Lucy C. Garner, Clementine Geeves, Dominique Georgiou, Leila Godfrey, Tanya Golubchik, Maria Gomez Vazquez, Angie Green, Hong Harper, Heather A. Harrington, Raphael Heilig, Svenja Hester, Jennifer Hill, Charles Hinds, Clare Hird, Ling-Pei Ho, Renee Hoekzema, Benjamin Hollis, Jim Hughes, Paula Hutton, Matthew A. Jackson-Wood, Ashwin Jainarayanan, Anna James-Bott, Kathrin Jansen, Katie Jeffery, Elizabeth Jones, Luke Jostins, Georgina Kerr, David Kim, Paul Klenerman, Julian C. Knight, Vinod Kumar, Piyush Kumar Sharma, Prathiba Kurupati, Andrew Kwok, Angela Lee, Aline Linder, Teresa Lockett, Lorne Lonie, Maria Lopopolo, Martyna Lukoseviciute, Jian Luo, Spyridoula Marinou, Brian Marsden, Jose Martinez, Philippa C. Matthews, Michalina Mazurczyk, Simon McGowan, Stuart McKechnie, Adam Mead, Alexander J. Mentzer, Yuxin Mi, Claudia Monaco, Ruddy Montadon, Giorgio Napolitani, Isar Nassiri, Alex Novak, Darragh P. O'Brien, Daniel O'Connor, Denise O'Donnell, Graham Ogg, Lauren Overend, Inhye Park, Ian Pavord, Yanchun Peng, Frank Penkava, Mariana Pereira Pinho, Elena Perez, Andrew J. Pollard, Fiona Powrie, Bethan Psaila, T. Phuong Quan, Emmanouela Repapi, Santiago Revale, Laura Silva-Reyes, Jean-Baptiste Richard, Charlotte Rich-Griffin, Thomas Ritter, Christine S. Rollier, Matthew Rowland, Fabian Ruehle, Mariolina Salio, Stephen Nicholas Sansom, Raphael Sanches Peres, Alberto Santos Delgado, Tatjana Sauka-Spengler, Ron Schwessinger, Giuseppe Scozzafava, Gavin Screaton, Anna Seigal, Malcolm G. Semple, Martin Sergeant, Christina Simoglou Karali, David Sims, Donal Skelly, Hubert Slawinski, Alberto Sobrinodiaz, Nikolaos Sousos, Lizzie Stafford, Lisa Stockdale, Marie Strickland, Otto Sumray, Bo Sun, Chelsea Taylor, Stephen Taylor, Adan Taylor, Supat Thongjuea, Hannah Thraves, John A. Todd, Adriana Tomic, Orion Tong, Amy Trebes, Dominik Trzupek, Felicia Anna Tucci, Lance Turtle, Irina Udalova, Holm Uhlig, Erinke van Grinsven, Iolanda Vendrell, Marije Verheul, Alexandru Voda, Guanlin Wang, Lihui Wang, Dapeng Wang, Peter Watkinson, Robert Watson, Michael Weinberger, Justin Whalley, Lorna Witty, Katherine Wray, Luzheng Xue, Hing Yuen Yeung, Zixi Yin, Rebecca K. Young, Jonathan Youngs, Ping Zhang, Yasemin-Xiomara Zurke, Cribbs, AP, and Consortium, COvid-19 Multi-omics Blood ATlas (COMBAT)
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Resource ,Adult ,Male ,Myeloid ,Proteome ,coronavirus ,Cell Cycle Proteins ,Disease ,Severity of Illness Index ,General Biochemistry, Genetics and Molecular Biology ,Monocytes ,Sepsis ,Machine Learning ,Mitogen-Activated Protein Kinase 14 ,transcriptomics ,Immune system ,proteomics ,blood ,Influenza, Human ,medicine ,Humans ,Lymphocytes ,Progenitor cell ,Principal Component Analysis ,epigenetics ,business.industry ,SARS-CoV-2 ,Clinical study design ,Acute-phase protein ,COVID-19 ,personalized medicine ,Blood Proteins ,multi-omics ,Middle Aged ,medicine.disease ,Coronavirus ,Transcription Factor AP-1 ,medicine.anatomical_structure ,Drug development ,Immunology ,Female ,immune ,business ,Biomarkers - Abstract
Treatment of severe COVID-19 is currently limited by clinical heterogeneity and incomplete description of specific immune biomarkers. We present here a comprehensive multi-omic blood atlas for patients with varying COVID-19 severity in an integrated comparison with influenza and sepsis patients versus healthy volunteers. We identify immune signatures and correlates of host response. Hallmarks of disease severity involved cells, their inflammatory mediators and networks, including progenitor cells and specific myeloid and lymphocyte subsets, features of the immune repertoire, acute phase response, metabolism and coagulation. Persisting immune activation involving AP-1/p38MAPK was a specific feature of COVID-19. The plasma proteome enabled sub-phenotyping into patient clusters, predictive of severity and outcome. Systems-based integrative analyses including tensor and matrix decomposition of all modalities revealed feature groupings linked with severity and specificity compared to influenza and sepsis. Our approach and blood atlas will support future drug development, clinical trial design and personalized medicine approaches for COVID-19., Graphical Abstract, A multi-omic analysis of patient blood samples reveals both similarities and specific features of COVID-19 when compared with samples obtained from sepsis or influenza patients which could yield better targetted therapies for severe COVID-19.
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- 2021
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22. Evaluation physical characteristics and comparison antimicrobial and anti-inflammation potentials of dental root canal sealers containing hinokitiol in vitro.
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Yin-Hua Shih, Dan-Jae Lin, Kuo-Wei Chang, Shih-Min Hsia, Shun-Yao Ko, Shyh-Yuan Lee, Shui-Sang Hsue, Tong-Hong Wang, Yi-Ling Chen, and Tzong-Ming Shieh
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Medicine ,Science - Abstract
Hinokitiol displays potent antimicrobial activity. It has been used in toothpaste and oral-care gel to improve the oral lichen planus and reduce halitosis. The aim of this study was to evaluate the antimicrobial activity of 3 different dental root canal sealers with hinokitiol (sealers+H) and their physical and biological effects. AH Plus (epoxy amine resin-based, AH), Apexit Plus (calcium-hydroxide-based, AP), and Canals (zinc-oxide-eugenol-based, CA), were used in this study. The original AH and CA exhibited strong anti-methicillin-resistant Staphylococcus aureus (anti-MRSA) activity, but AP did not. The setting time, working time, flowability, film thickness, and solubility of each sealer+0.2%H complied with ISO 6876:2001. CA+0.2%H exhibited high cytotoxicity, but the others sealers+0.2%H did not. Because hinokitiol combined with Zn2+ in CA creates a synergistic effect. The physical tests of AP+0.5%-1%H complied with ISO 6876:2001, improved antimicrobial activity, inhibited inflammation genes cyclooxygenase-2 (COX-2) and hypoxia-inducible factor-1α (HIF-1α) mRNA in MG-63 cells and human gingival fibroblasts (HGF), and down-regulated lysyl oxidase (LOX) mRNA of HGF. In summary, AH and CA demonstrated strong antimicrobial activity, but AP did not. Application of hinokitiol increases AH anti-MRSA activity should less than 0.2% for keep well flowability. AP+0.5%-1% hinokitiol exhibited strong physical, antibacterial, and anti-inflammation potentials, and inhibited S. aureus abscess formation. Applying an appreciable proportion of hinokitiol to epoxy-amine-resin-based and calcium-hydroxide-based root canal sealers is warranted, but the enhanced cytotoxicity and synergistic effect must be considered.
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- 2014
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23. Linked production of pyroglutamate-modified proteins via self-cleavage of fusion tags with TEV protease and autonomous N-terminal cyclization with glutaminyl cyclase in vivo.
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Yan-Ping Shih, Chi-Chi Chou, Yi-Ling Chen, Kai-Fa Huang, and Andrew H-J Wang
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Medicine ,Science - Abstract
Overproduction of N-terminal pyroglutamate (pGlu)-modified proteins utilizing Escherichia coli or eukaryotic cells is a challenging work owing to the fact that the recombinant proteins need to be recovered by proteolytic removal of fusion tags to expose the N-terminal glutaminyl or glutamyl residue, which is then converted into pGlu catalyzed by the enzyme glutaminyl cyclase. Herein we describe a new method for production of N-terminal pGlu-containing proteins in vivo via intracellular self-cleavage of fusion tags by tobacco etch virus (TEV) protease and then immediate N-terminal cyclization of passenger target proteins by a bacterial glutaminyl cyclase. To combine with the sticky-end PCR cloning strategy, this design allows the gene of target proteins to be efficiently inserted into the expression vector using two unique cloning sites (i.e., SnaB I and Xho I), and the soluble and N-terminal pGlu-containing proteins are then produced in vivo. Our method has been successfully applied to the production of pGlu-modified enhanced green fluorescence protein and monocyte chemoattractant proteins. This design will facilitate the production of protein drugs and drug target proteins that possess an N-terminal pGlu residue required for their physiological activities.
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- 2014
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24. Chloroquine and Hydroxychloroquine: Efficacy in the Treatment of the COVID-19
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Kuo Pin Chuang, Yi-Ming Arthur Chen, Ming-Hui Yang, Yu-Chang Tyan, Cheng-Hui Yuan, Yi-Ling Chen, Che Hsin Lee, Sheng-Yow Ho, Tzu-Chuan Ho, Wan-Chi Tsai, and Yung-Hsuan Wang
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Microbiology (medical) ,medicine.medical_specialty ,Cardiotoxicity ,hydroxychloroquine ,General Immunology and Microbiology ,Coronavirus disease 2019 (COVID-19) ,business.industry ,Brief Report ,lcsh:R ,lcsh:Medicine ,Hydroxychloroquine ,Clinical trial ,chloroquine ,Infectious Diseases ,Search terms ,coronavirus disease ,Chloroquine ,Internal medicine ,Immunology and Allergy ,Medicine ,Treatment effect ,business ,Molecular Biology ,After treatment ,medicine.drug - Abstract
Chloroquine (CQ) and its derivative, hydroxychloroquine (HCQ), have attracted wide attention for treating coronavirus disease 2019 (COVID-19). However, conflicting outcomes have been found in COVID-19 clinical trials after treatment with CQ or HCQ. To date, it remains uncertain whether CQ and HCQ are beneficial antiviral drugs for combating COVID-19. We performed a systematic review to depict the efficacy of CQ or HCQ for the treatment of COVID-19. The guidelines of PRISMA were used to conduct this systematic review. We searched through articles from PubMed, Web of Science and other sources that were published from 1 January 2020 to 31 October 2020. The search terms included combinations of human COVID-19, CQ, and HCQ. Eleven qualitative articles comprising of four clinical trials and seven observation studies were utilized in our systematic review. The analysis shows that CQ and HCQ do not have efficacy in treatment of patients with severe COVID-19. In addition, CQ and HCQ have caused life-threatening adverse reactions which included cardiac arrest, electrocardiogram modification, and QTc prolongation, particularly during the treatment of patients with severe COVID-19. Our systematic review suggested that CQ and HCQ are not beneficial antiviral drugs for curing patients with severe COVID-19. The treatment effect of CQ and HCQ is not only null but also causes serious side effects, which may cause potential cardiotoxicity in severe COVID-19 patients.
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- 2021
25. Intake of phthalate-tainted foods alters thyroid functions in Taiwanese children.
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Ming-Tsang Wu, Chia-Fang Wu, Bai-Hsiun Chen, Eric K Chen, Yi-Ling Chen, Jentaie Shiea, Wei-Te Lee, Mei-Chyn Chao, and Jiunn-Ren Wu
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Medicine ,Science - Abstract
BACKGROUND: On April-May, 2011, two Taiwan chemical companies were found to have intentionally added phthalates, Di-(2-ethylhexyl) phthalate (DEHP) and/or Di-isononyl phthalate, as a substitute of emulsifier to many foodstuffs. This study aimed to investigate whether exposure to these foods altered endocrine functions in children aged ≤10 years and, if so, whether those changes could be reversed by stopping exposure. METHODS: One Phthalates Clinic for Children was established in southern Taiwan between May 31 and June 17, 2011. All eligible children had their exposure information, blood and/or urine specimens collected. Endocrine functions were assessed in serum. The exposure groups were categorized into three (High, >500 ppm, Low, 1-500 ppm, and No,
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- 2013
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26. CD1a selectively captures endogenous cellular lipids that broadly block T cell response
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Richard A. Willis, Simon G. Talbot, Yi-Ling Chen, Annemieke de Jong, Bohdan Pomahac, Rachael A. Clark, Rachel N. Cotton, D. Branch Moody, Natacha Veerapen, Jérôme Le Nours, Graham S. Ogg, John D. Altman, Tan-Yun Cheng, Gurdyal S. Besra, Dennis P. Orgill, Ildiko Van Rhijn, Marcin Wegrecki, and Jamie Rossjohn
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0301 basic medicine ,T cell ,T-Lymphocytes ,Immunology ,Receptors, Antigen, T-Cell ,Endogeny ,Lymphocyte Activation ,Insights ,Cell Line ,Antigens, CD1 ,03 medical and health sciences ,chemistry.chemical_compound ,0302 clinical medicine ,Antigen ,Lipidomics ,medicine ,Immunology and Allergy ,Humans ,Phospholipids ,Phosphocholine ,Medicine(all) ,Antigen Presentation ,integumentary system ,T-cell receptor ,fungi ,Cell Membrane ,food and beverages ,hemic and immune systems ,Sphingolipid ,Cell biology ,030104 developmental biology ,medicine.anatomical_structure ,HEK293 Cells ,chemistry ,030220 oncology & carcinogenesis ,Sphingomyelin ,K562 Cells - Abstract
CD1a molecules capture lipid classes that can prevent the binding of autoreactive T cell antigen receptors., CD1a-autoreactive T cells represent a significant proportion of circulating αβ T cells in humans and appear to be enriched in the skin. How their autoreactivity is regulated remains unclear. In this issue of JEM, Cotton et al. (2021. J. Exp. Med. https://doi.org/10.1084/jem.20202699) show that CD1a molecules do not randomly survey cellular lipids but instead capture certain lipid classes that broadly interfere with the binding of autoreactive T cell antigen receptors to the target CD1a. These findings provide new potential therapeutic avenues for manipulating CD1a autoreactive T cell responses.
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- 2020
27. Magnolol, A Novel Antagonist of Thrombin and PAR-1, Inhibits Thrombin-Induced Connective Tissue Growth Factor (CTGF) Expression in Vascular Smooth Muscle Cells and Ameliorate Pathogenesis of Restenosis in Rats
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Ting Lin Yen, Chia Ti Tsai, Wan-Jung Lu, Chun Ming Shih, Chuang Ye Hong, Wen Chin Ko, Yi Ling Chen, Kai Cheng Hsu, Yu Che Cheng, and Tony Eight Lin
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0301 basic medicine ,Neointima ,Vascular smooth muscle ,medicine.medical_treatment ,Connective tissue ,PAR-1 ,magnolol ,thrombin inhibitor ,CTGF ,restenosis ,030204 cardiovascular system & hematology ,Pharmacology ,lcsh:Technology ,lcsh:Chemistry ,03 medical and health sciences ,chemistry.chemical_compound ,0302 clinical medicine ,Thrombin ,Restenosis ,medicine ,General Materials Science ,Instrumentation ,lcsh:QH301-705.5 ,Fluid Flow and Transfer Processes ,lcsh:T ,Process Chemistry and Technology ,Growth factor ,General Engineering ,medicine.disease ,Magnolol ,lcsh:QC1-999 ,Computer Science Applications ,030104 developmental biology ,medicine.anatomical_structure ,chemistry ,lcsh:Biology (General) ,lcsh:QD1-999 ,lcsh:TA1-2040 ,lcsh:Engineering (General). Civil engineering (General) ,lcsh:Physics ,medicine.drug - Abstract
Restenosis and destructive vascular remodeling are the main reasons for treatment failure in patients undergoing percutaneous coronary intervention (PCI). In this study, we explored the efficacy of magnolol (a traditional Chinese medicine) in the treatment of restenosis. The results of this study showed that the activities of thrombin and PAR-1 (protease-activated receptor 1) were significantly decreased by the treatment of magnolol. Based on protein docking analysis, magnolol exhibits its potential to bind to the PAR-1 active site. In addition, thrombin-induced connective tissue growth factor (CTGF) expression and the upstream of CTGF such as JNK-1 (but not JNK-2), c-Jun, and AP-1 were distinctly inhibited by magnolol (50 μM) in vascular smooth muscle cells (VSMC). For the functional assay, magnolol (50 μM) significantly inhibited the migration of VSMC, and rats treated with magnolol (13 mg/kg/day) after balloon angioplasty has observed a significant reduction in the formation of common arterial neointima. In conclusion, we identified a novel mechanism by which magnolol acts as the thrombin activity inhibitor and may be the PAR-1 antagonist. In accordance with these functions, magnolol could decrease thrombin-induced CTGF expression in VSMCs via PAR-1/JNK-1/AP-1 signaling.
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- 2020
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28. Xenogeneic and Allogeneic Mesenchymal Stem Cells Effectively Protect the Lung Against Ischemia-reperfusion Injury Through Downregulating the Inflammatory, Oxidative Stress, and Autophagic Signaling Pathways in Rat
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Kun-Chen Lin, Pei-Hsun Sung, John Y. Chiang, Jun-Ning Yeh, Jun Guo, Hon-Kan Yip, Yi-Ling Chen, and Fan-Yen Lee
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Male ,Programmed cell death ,autophagy ,Induced Pluripotent Stem Cells ,Transplantation, Heterologous ,Biomedical Engineering ,lcsh:Medicine ,Down-Regulation ,Inflammation ,Apoptosis ,Lung injury ,medicine.disease_cause ,Mesenchymal Stem Cell Transplantation ,Models, Biological ,Rats, Sprague-Dawley ,Immune system ,medicine ,Animals ,Transplantation, Homologous ,oxidative stress ,Lung ,Cell Proliferation ,Transplantation ,Cell Death ,Chemistry ,lcsh:R ,Mesenchymal stem cell ,Mesenchymal Stem Cells ,Cell Biology ,medicine.disease ,Mitochondria ,Oxygen ,Reperfusion Injury ,Cancer research ,Original Article ,xenogeneic and allogenic MSCs ,medicine.symptom ,acute lung ischemia-reperfusion injury ,Reperfusion injury ,Oxidative stress ,Biomarkers ,DNA Damage ,Signal Transduction - Abstract
This study tested the hypothesis that both allogenic adipose-derived mesenchymal stem cells (ADMSCs) and human inducible pluripotent stem cell-derived MSCs (iPS-MSCs) offered a comparable effect for protecting the lung against ischemia-reperfusion (IR) injury in rodent through downregulating the inflammatory, oxidative stress, and autophagic signaling pathways. Adult male Sprague–Dawley rats ( n = 32) were categorized into group 1 (sham-operated control), group 2 (IRI), group 3 [IRI + ADMSCs (1.0 × 106cells)/tail-vein administration at 0.5/18/36 h after IR], and group 4 [IRI + iPS-MSCs (1.0 × 106cells)/tail-vein administration at 0.5/18/36 h after IR], and lungs were harvested at 72 h after IR procedure. In vitro study demonstrated that protein expressions of three signaling pathways in inflammation (TLR4/MyD88/TAK1/IKK/I-κB/NF-κB/Cox-2/TNF-α/IL-1ß), mitochondrial damage/cell apoptosis (cytochrome C/cyclophilin D/DRP1/ASK1/APAF-1/mitochondrial-Bax/caspase3/8/9), and autophagy/cell death (ULK1/beclin-1/Atg5,7,12, ratio of LCB3-II/LC3B-I, p-AKT/m-TOR) were significantly higher in lung epithelial cells + 6h hypoxia as compared with the control, and those were significantly reversed by iPS-MSC treatment (all P < 0.001). Flow cytometric analysis revealed that percentages of the inflammatory cells in bronchioalveolar lavage fluid and circulation, and immune cells in circulation/spleen as well as circulatory early and late apoptotic cells were highest in group 2, lowest in group 1, and significantly higher in group 3 than in group 4 (all P < 0.0001). Microscopy showed the lung injury score and numbers of inflammatory cells and Western blot analysis showed the signaling pathways of inflammation, mitochondrial damage/cell apoptosis, autophagy, and oxidative stress exhibited an identical pattern of flow cytometric results among the four groups (all P < 0.0001). Both xenogeneic and allogenic MSCs protected the lung against IRI via suppressing the inflammatory, oxidative stress, and autophagic signaling.
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- 2020
29. IL-6 effector function of group 2 innate lymphoid cells (ILC2) is NOD2 dependent
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Yi-Ling Chen, David Johnson, Clare S. Hardman, Jillian L. Barlow, C. L. Fonseka, Janina Nahler, Alison Simmons, Maryam Salimi, Marta Jagielowicz, Andrew N. J. McKenzie, Emmanouela Repapi, David J. Cousins, Graham S. Ogg, and Daniele Corridoni
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0301 basic medicine ,Adult ,Staphylococcus aureus ,medicine.medical_treatment ,Immunology ,Nod2 Signaling Adaptor Protein ,Human skin ,Biology ,Article ,03 medical and health sciences ,chemistry.chemical_compound ,0302 clinical medicine ,NOD2 ,medicine ,Humans ,Antigens, Dermatophagoides ,Lymphocytes ,Receptor ,Skin ,Effector ,Innate lymphoid cell ,General Medicine ,Allergens ,Staphylococcal Infections ,Immunity, Innate ,Toll-Like Receptor 2 ,TLR2 ,030104 developmental biology ,Cytokine ,chemistry ,030220 oncology & carcinogenesis ,Mutation ,Cytokines ,Muramyl dipeptide - Abstract
Cutaneous group 2 innate lymphoid cells (ILC2) are spatially and epigenetically poised to respond to barrier compromise and associated immunological threats. ILC2, lacking rearranged antigen-specific receptors, are primarily activated by damage-associated cytokines and respond with type 2 cytokine production. To investigate ILC2 potential for direct sensing of skin pathogens and allergens, we performed RNA sequencing of ILC2 derived from in vivo challenged human skin or blood. We detected expression of NOD2 and TLR2 by skin and blood ILC2. Stimulation of ILC2 with TLR2 agonist alone not only induced interleukin-5 (IL-5) and IL-13 expression but also elicited IL-6 expression in combination with Staphylococcus aureus muramyl dipeptide (MDP). Heat-killed skin-resident bacteria provoked an IL-6 profile in ILC2 in vitro that was notably impaired in ILC2 derived from patients with nucleotide-binding oligomerization domain-containing protein 2 (NOD2) mutations. In addition, we show that NOD2 signaling can stimulate autophagy in ILC2, which was also impaired in patients with NOD2 mutations. Here, we have identified a role for ILC2 NOD2 signaling in the differential regulation of ILC2-derived IL-6 and have reported a previously unrecognized pathway of direct ILC2 bacterial sensing.
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- 2020
30. The Physiological Responses of Escherichia coli Triggered by Phosphoribulokinase (PrkA) and Ribulose-1,5-Bisphosphate Carboxylase/Oxygenase (Rubisco)
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I-Ting Tseng, En-Jung Liu, Ju-Jiun Pang, Si-Yu Li, Zhi-Xuan Shen, and Yi-Ling Chen
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0106 biological sciences ,0301 basic medicine ,Microbiology (medical) ,inorganic chemicals ,Glyoxylate cycle ,medicine.disease_cause ,01 natural sciences ,Microbiology ,glyoxylate shunt ,redox balance ,03 medical and health sciences ,chemistry.chemical_compound ,010608 biotechnology ,Virology ,medicine ,Methylglyoxal pathway ,Escherichia coli ,lcsh:QH301-705.5 ,Ribulose 1,5-bisphosphate ,biology ,Phosphoribulokinase ,Chemistry ,RuBisCO ,fungi ,food and beverages ,Pyruvate carboxylase ,030104 developmental biology ,Biochemistry ,methylglyoxal pathway ,ribulose-1,5-bisphosphate carboxylase/oxygenase (Rubisco) ,lcsh:Biology (General) ,phosphoribulokinase (PrkA) ,biology.protein ,bacteria ,Phosphoenolpyruvate carboxylase - Abstract
Phosphoribulokinase (PrkA) and ribulose-1,5-bisphosphate carboxylase/oxygenase (Rubisco) have been proposed to create a heterologous Rubisco-based engineered pathway in Escherichia coli for in situ CO2 recycling. While the feasibility of a Rubisco-based engineered pathway has been shown, heterologous expressions of PrkA and Rubisco also induced physiological responses in E. coli that may compete with CO2 recycling. In this study, the metabolic shifts caused by PrkA and Rubisco were investigated in recombinant strains where ppc and pta genes (encodes phosphoenolpyruvate carboxylase and phosphate acetyltransferase, respectively) were deleted from E. coli MZLF (E. coli BL21(DE3) &Delta, zwf, &Delta, ldhA, &Delta, frd). It has been shown that the demand for ATP created by the expression of PrkA significantly enhanced the glucose consumptions of E. coli CC (MZLF &Delta, ppc) and E. coli CA (MZLF &Delta, ppc, &Delta, pta). The accompanying metabolic shift is suggested to be the mgsA route (the methylglyoxal pathway) which results in the lactate production for reaching the redox balance. The overexpression of Rubisco not only enhanced glucose consumption but also bacterial growth. Instead of the mgsA route, the overproduction of the reducing power was balanced by the ethanol production. It is suggested that Rubisco induces a high demand for acetyl-CoA which is subsequently used by the glyoxylate shunt. Therefore, Rubisco can enhance bacterial growth. This study suggests that responses induced by the expression of PrkA and Rubisco will reach a new energy balance profile inside the cell. The new profile results in a new distribution of the carbon flow and thus carbons cannot be majorly directed to the Rubisco-based engineered pathway.
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- 2020
31. A Pilot Study of Hip Corrective Taping Using Kinesio Tape for Pain and Lower Extremity Joint Kinematics in Basketball Players with Patellofemoral Pain
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Ya Wen Hsu, Yi Liang Kuo, Yi Ling Chen, Yi-Ju Tsai, and Yueh Chu Huang
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medicine.medical_specialty ,Basketball ,education ,Single group ,Squat ,Kinematics ,anterior knee pain ,biomechanics ,03 medical and health sciences ,0302 clinical medicine ,Patellofemoral pain ,030202 anesthesiology ,medicine ,Journal of Pain Research ,Original Research ,business.industry ,Biomechanics ,hip joint ,kinesio taping ,Anesthesiology and Pain Medicine ,Knee pain ,Physical therapy ,medicine.symptom ,business ,Lower extremity joint ,030217 neurology & neurosurgery - Abstract
Yi-Ju Tsai,1,2 Yueh-Chu Huang,3 Yi-Ling Chen,1 Ya-Wen Hsu,4 Yi-Liang Kuo1 1Department of Physical Therapy, College of Medicine, National Cheng Kung University, Tainan, Taiwan; 2Institute of Allied Health Sciences, College of Medicine, National Cheng Kung University, Tainan, Taiwan; 3Department of Acupressure Technology, Chung Hwa University of Medical Technology, Tainan, Taiwan; 4School of Community Health Sciences, University of Nevada, Reno, NV, USACorrespondence: Yi-Liang KuoDepartment of Physical Therapy, College of Medicine, National Cheng Kung University, No. 1 Ta-Hsueh Road, Tainan 701, TaiwanTel +886-6-2757575 Ext. 6251Fax +886-6-2370411Email yiliangkuo@mail.ncku.edu.twPurpose: This pilot study aimed to determine the feasibility of hip corrective taping to improve self-reported knee pain and lower extremity joint kinematics in basketball players with patellofemoral pain.Patients and Methods: A single group pre-test and post-test design. Collegiate basketball players with patellofemoral pain were recruited. Three-dimensional hip and knee joint kinematics were measured during two tasks, single-leg squat (SLS) and lay-up jump (LUJ), and each task was conducted under no-taping and taping conditions. Subjective report of pain was compared between no-taping and taping conditions only during SLS.Results: Twelve collegiate basketball players with patellofemoral pain (median age, 22.7 [2.5] years; mean height, 173.8 ± 7.4 cm; mean weight, 72.5 ± 12.8 kg) participated in this study. Compared with no-taping, the use of hip corrective taping significantly increased the hip abduction angle at the instant of the maximal vertical ground reaction force during LUJ (no-taping vs taping: 0.6° ± 6.3° vs 3.3° ± 5.1°, p = 0.029), and also caused a trend of decreased maximal hip internal rotation angle during SLS (no-taping vs taping: 8.0° ± 6.6° vs 4.7° ± 6.9°, p = 0.050). Hip corrective taping also improved self-reported knee pain during SLS (no-taping vs taping: 3.4 ± 1.7 vs 2.6 ± 1.0, p = 0.046).Conclusion: Hip corrective taping may be used as an effective intervention for athletes with patellofemoral pain during basketball-related tasks.Keywords: anterior knee pain, kinesio taping, biomechanics, hip joint
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- 2020
32. Arecoline-regulated ataxia telangiectasia mutated expression level in oral cancer progression
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Michael Yuanchien Chen, Yi Ling Chen, Cheng Chieh Yang, Yin Hwa Shih, Hsi Feng Tu, Shih Min Hsia, Joseph Chieh Yui Lai, Hsin Yuan Chen, Tzong-Ming Shieh, and Yih Wen Wong
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0301 basic medicine ,Cell cycle checkpoint ,DNA Repair ,DNA damage ,DNA repair ,Arecoline ,Cell ,Apoptosis ,Ataxia Telangiectasia Mutated Proteins ,03 medical and health sciences ,0302 clinical medicine ,Cell Line, Tumor ,medicine ,Humans ,Promoter Regions, Genetic ,Cell Proliferation ,Dose-Response Relationship, Drug ,Cell growth ,business.industry ,Cancer ,Cell Cycle Checkpoints ,Cell cycle ,medicine.disease ,Immunohistochemistry ,stomatognathic diseases ,030104 developmental biology ,medicine.anatomical_structure ,Otorhinolaryngology ,030220 oncology & carcinogenesis ,Carcinoma, Squamous Cell ,Disease Progression ,Cancer research ,Mouth Neoplasms ,business ,DNA Damage ,medicine.drug - Abstract
BACKGROUND Ataxia telangiectasia mutated (ATM) regulates DNA repair and cell cycle. The present study analyzed arecoline-induced ATM expression during oral cancer progression. METHODS In vitro studies were performed using oral squamous cell carcinoma (OSCC) cell lines treated with arecoline to analyze cell response and ATM regulation. in vivo studies were performed using immunohistochemistry to detect ATM expression in normal, oral potentially malignant disorder (OPMD), and OSCC tissues. RESULTS Low-dose arecoline induced cell proliferation, ATM promoter activity, and DNA repair. High-dose arecoline induced cell cycle arrest, apoptosis, and DNA damage. ATM was overexpressed in OPMD tissues but was downregulated in OSCC tissues. ATM expression level was associated with the risk of developing dysplasia, buccal-OSCC, and with OSCC survival rate. CONCLUSION High ATM expression helps DNA repair mechanisms to maintain the cells in the OPMD stage, but low ATM expression causes DNA damage accumulation to increase cell malignancy.
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- 2019
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33. Quality and quantity culture effectively restores functional and proliferative capacities of endothelial progenitor cell in end-stage renal disease patients
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Jiunn-Jye Sheu, Hon-Kan Yip, Tien-Hung Huang, Pei-Hsun Sung, Mel S. Lee, John Y. Chiang, Yi-Ling Chen, and Chih-Chao Yang
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0301 basic medicine ,medicine.medical_specialty ,QH301-705.5 ,Angiogenesis ,Population ,Urology ,Biology ,urologic and male genital diseases ,Endothelial progenitor cell ,Peripheral blood mononuclear cell ,End stage renal disease ,End-stage renal disease ,03 medical and health sciences ,0302 clinical medicine ,Anti-inflammation ,medicine ,Humans ,Biology (General) ,Progenitor cell ,education ,Cells, Cultured ,Quality and quantity culture ,Endothelial Progenitor Cells ,education.field_of_study ,Macrophages ,Cell Biology ,General Medicine ,Arteriosclerosis ,medicine.disease ,Endothelial stem cell ,030104 developmental biology ,cardiovascular system ,Leukocytes, Mononuclear ,Kidney Failure, Chronic ,030217 neurology & neurosurgery ,Developmental Biology - Abstract
Background: Endothelial cell dysfunction plays the crucial role in initiation and propagation of obstructive arteriosclerosis which ultimately causes arterial obstructive syndrome. Additionally, severe endothelial progenitor cells (EPC) dysfunction is always found in those of end-stage renal disease (ESRD) patients. This study tested the hypothesis that a novel method, named “quality and quantity (QQ) culture”, could successfully improve the EPC proliferation and function in ESRD patients. Materials and methods: Peripheral blood mononuclear cells (PBMNCs) were isolated from age-matched control subjects (i.e., normal renal function) (group 1) and ESRD patients (group 2), followed by culture in either conventional EPC culture for one month or in QQ culture for 7 days, respectively. The result showed that as compared to the conventional EPC culture method, the EPC population and M2-like population/ratio (M2/M1) were significantly enriched in QQ culture both in groups 1 and 2 (all p
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- 2020
34. Increased expression of secreted frizzled related protein 1 (SFRP1) predicts ampullary adenocarcinoma recurrence
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Nam Nhut Phan, Yan Shen Shan, Ying Jui Chao, Tzu Wen Wang, Ming Derg Lai, Michael J. Overman, Chih-Yang Wang, Yi Ling Chen, Hui Ping Hsu, and Li Chin Cheng
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0301 basic medicine ,Adult ,Male ,Ampulla of Vater ,lcsh:Medicine ,Biology ,Bone morphogenetic protein ,Article ,03 medical and health sciences ,Gastrointestinal cancer ,0302 clinical medicine ,Secreted frizzled-related protein 1 ,medicine ,Tumor Cells, Cultured ,Humans ,lcsh:Science ,Peritoneal Neoplasms ,Aged ,Gastrointestinal Neoplasms ,Oligonucleotide Array Sequence Analysis ,Regulation of gene expression ,Aged, 80 and over ,Multidisciplinary ,Microarray analysis techniques ,Gene Expression Profiling ,lcsh:R ,Wnt signaling pathway ,Membrane Proteins ,Oncogenes ,Middle Aged ,medicine.disease ,Prognosis ,Up-Regulation ,Gene Expression Regulation, Neoplastic ,030104 developmental biology ,Periampullary Adenocarcinoma ,Cancer research ,Immunohistochemistry ,Intercellular Signaling Peptides and Proteins ,lcsh:Q ,Female ,Neoplasm Recurrence, Local ,030217 neurology & neurosurgery ,Signal Transduction - Abstract
Ampullary adenocarcinoma is a rare gastrointestinal cancer in which WNT signalling dysregulation has been previously reported. Secreted frizzled related protein 1 (SFRP1) is one of the extracellular ligands of WNT signalling. We performed bioinformatics analyses of SFRP1 expression in human cancer. Microarray analysis of SFRP1 in periampullary adenocarcinoma was obtained from the Gene Expression Omnibus GSE39409 dataset. SFRP1 expression in ampullary adenocarcinoma was detected by immunohistochemistry staining and correlated with patients’ clinical outcomes. Our results showed that SFRP1 expression had different clinical applications in all types of human cancer. No detected alteration of SFPR1 gene and SFRP1 expression in ampullary adenocarcinoma was lower than that in other periampullary adenocarcinomas. However, high expression levels of SFRP1 protein were correlated with cancer recurrence, peritoneal carcinomatosis and poor patient prognosis. Gene set enrichment analysis showed downregulation of multiple WNT-related genes in primary culture cells from ampullary adenocarcinoma, but SFRP1 expression was increased. We found an interaction between WNT, bone morphogenetic protein and hedgehog signalling with SFRP1. Furthermore, a high expression of SFRP1 predicted poor prognosis for ampullary adenocarcinoma patients. Because it is a multifunctional protein, SFRP1 targeting serves as a potential therapy for ampullary adenocarcinoma patients.
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- 2020
35. Combined Adipose-Derived Mesenchymal Stem Cells and Low-Energy Extracorporeal Shock Wave Therapy Protect the Brain From Brain Death-Induced Injury in Rat
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Chi-Wen Luo, Yi-Ling Chen, Hao-Yi Hsiao, Fan-Yen Lee, Tien-Hung Huang, Christopher Glenn Wallace, Hon-Kan Yip, Chi-Ruei Huang, Kuan-Hung Chen, Kun-Chen Lin, and Yi-Chen Li
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Extracorporeal Shockwave Therapy ,Male ,Brain Death ,medicine.medical_specialty ,CD14 ,Adipose tissue ,Inflammation ,Spleen ,Mesenchymal Stem Cell Transplantation ,medicine.disease_cause ,Pathology and Forensic Medicine ,Rats, Sprague-Dawley ,03 medical and health sciences ,Cellular and Molecular Neuroscience ,0302 clinical medicine ,Immune system ,Internal medicine ,medicine ,Animals ,business.industry ,General Medicine ,Rats ,medicine.anatomical_structure ,Endocrinology ,Adipose Tissue ,Neurology ,Apoptosis ,Brain Injuries ,Neurology (clinical) ,medicine.symptom ,business ,030217 neurology & neurosurgery ,CD8 ,Oxidative stress - Abstract
This study tested the hypothesis that combined adipose-derived mesenchymal stem cell (ADMSC) and low-energy extracorporeal shock wave (ECSW) therapy could protect brain from brain death (BD)-induced injury. Adult male Sprague Dawley rats were categorized into group 1 (sham control), group 2 (BD), group 3 (BD + ECSW [0.15 mJ/mm2/300 impulses] applied to the skull surface 3 hours after BD induction), group 4 (BD + ADMSC [1.2 × 106 cell] by intravenous injection 3 hours after BD induction) and group 5 (BD + ECSW + ADMSC). By 6 hours after BD induction, circulating/spleen levels of immune cells (CD3/CD4+, CD8/CD4+, Treg+) and circulating levels of inflammatory cells (MPO/Ly6G/CD11a/b) and soluble mediators (TNF-α/IL-6) were lowest in group 1 and significantly progressively reduced from groups 2 to 5 (all p < 0.0001). Brain protein expressions of inflammatory (TNF-α/NF-κB/MMP-9/IL-1β), apoptotic (caspase-3/PARP/mitochondrial-BAX), oxidative stress/DNA-damage (NOX-1/NOX-2/oxidized protein/γ-H2AX) biomarkers exhibited an identical pattern, whereas anti-oxidant (SIRT1/SIRT3) and mitochondrial-integrity (mitochondrial-cytochrome-C) biomarkers exhibited an opposite pattern to inflammatory biomarkers among the 5 groups (all p < 0.0001). The cellular expressions of inflammatory/brain-edema (F4/80/CD14+/GFAP/AQP4) biomarkers exhibited an identical pattern to inflammation among the 5 groups (all p < 0.0001). In conclusion, ECSW-ADMSC therapy is superior to either alone for attenuating brain from BD-induced damage.
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- 2018
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36. Exceeding the theoretical fermentation yield in mixotrophic Rubisco-based engineered Escherichia coli
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Zhi-Xuan Shen, Ching-Hsun Chen, I-Ting Tseng, Cheng-Han Yang, Yi-Ling Chen, and Si-Yu Li
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0106 biological sciences ,0301 basic medicine ,Ribulose-Bisphosphate Carboxylase ,Bioengineering ,medicine.disease_cause ,Models, Biological ,01 natural sciences ,Applied Microbiology and Biotechnology ,03 medical and health sciences ,010608 biotechnology ,Escherichia coli ,medicine ,Ethanol fuel ,Phosphoribulokinase ,biology ,Chemistry ,RuBisCO ,Carbon Dioxide ,Pyruvate carboxylase ,030104 developmental biology ,Biochemistry ,biology.protein ,Fermentation ,NAD+ kinase ,Microorganisms, Genetically-Modified ,Pyruvate decarboxylase ,Biotechnology - Abstract
Rubisco-based engineered Escherichia coli MZLFB (E. coli BL21(DE3) Δzwf, Δldh, Δfrd) containing heterologous phosphoribulokinase (Prk) and Ribulose-1,5- bisphosphate carboxylase/oxygenase (Rubisco) was constructed for the mixotrophic growth. However, in situ CO2 recycling was hindered by clogs of pyruvate during glucose metabolism, which consequently resulted in an insufficient regeneration of NAD+ through the pflB-mediated ethanol production. Recombinant plasmid pLOI295 (encodes pyruvate decarboxylase and alcohol dehydrogenase II, referred to as the Pdc-based carbon tap valve (CTV) for convenience) was introduced into E. coli MZLFB + CTV to bypass the pflB-mediated ethanol production. Results show that while the C-2/C-1 ratio (i.e., the molar ratio of ethanol and acetate to formate and total CO2) for parental strain MZLFB was 1.0 ± 0.1, the C-2/C-1 for MZLFB + CTV increased to 1.6 ± 0.1. This indicates that the Pdc-based CTV enhanced the performance of in situ CO2 recycling. By simultaneously utilizing glucose and CO2, the fermentation product yield of MZLFB + CTV exceeded the normal theoretical yield and reached 2.2 ± 0.0 (mol/mol). In silico analysis shows that 61% of the glucose consumption went through the Rubisco-based engineered pathway when the CTV was equipped. Also shown are the average CO2 consumption rate of 55.3 mg L−1·h−1 and an average ethanol production rate of 144.8 mg L−1·h−1. The conversion of CO2 to ethanol through the Rubisco-based engineered pathway and the Pdc-based carbon tap valve is important for mixotrophic growth, since these two modules serve as the energy sink to achieve intracellular energy balance. Also, during mixotrophic growth, ATP production from a certain percentage (39% in this study) of the EMP pathway activity is needed for mixotrophic growth.
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- 2018
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37. Homoharringtonine induced immune alteration for an Efficient Anti-tumor Response in Mouse Models of Non-small Cell Lung Adenocarcinoma Expressing Kras Mutation
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Yu Wei Chang, Chih Yang Wang, Chung Yen Li, Ming Derg Lai, Yi Chen, Yi Ling Chen, Yu Hsuan Hung, Hsuan Franziska Wu, Hui Ping Hsu, Jang Yang Chang, and Tzu Yang Weng
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0301 basic medicine ,Chemokine ,Lung Neoplasms ,medicine.medical_treatment ,lcsh:Medicine ,chemical and pharmacologic phenomena ,Adenocarcinoma ,medicine.disease_cause ,Article ,Mice ,03 medical and health sciences ,Immune system ,Cell Line, Tumor ,hemic and lymphatic diseases ,medicine ,otorhinolaryngologic diseases ,Animals ,Humans ,Antigen-presenting cell ,lcsh:Science ,CD86 ,Multidisciplinary ,biology ,Chemistry ,lcsh:R ,Disease Models, Animal ,Genes, ras ,030104 developmental biology ,Cytokine ,Homoharringtonine ,Mutation ,Cancer research ,biology.protein ,lcsh:Q ,KRAS ,CD80 - Abstract
Homoharringtonine (HHT), an inhibitor of protein synthesis, has been used to treat leukemia. Its therapeutic effects on non-small cell lung adenocarcinoma carrying KRAS mutation and their immune system are less understood. The present study examined the therapeutic efficacy and the immune effects of HHT in two murine lung tumor models, xenograft and transgenic, carrying the Kras mutation G12D and G12C respectively. HHT exhibited efficient anticancer activity, significantly suppressing lung tumor growth in vitro and in vivo. The levels of 22 cytokines and chemokines in splenocytes of tumor-bearing mice were examined. Interleukin-12 expression was lower in splenocytes of HHT-treated mice when compared to the controls as demonstrated by a cytokine array and an enzyme-linked immunosorbent assay. The expression levels of CD80, CD86, and CD69 in B220+ B cells from splenocytes of HHT-treated mice were higher than that of control mice in two mouse tumor models. Furthermore, antitumor effect of HHT was attenuated with depletion of B cells. Increased numbers of CD80+ and CD86+ B cells were observed in the mice treated with narciclasine, another translation inhibitor. In conclusion, HHT changed the features of immune cells, and exhibited efficient anti-tumor activity against lung tumor carrying mutant Kras expression.
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- 2018
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38. Dog ownership, dog walking, and leisure-time walking among Taiwanese metropolitan and nonmetropolitan older adults
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Yi Ling Chen, Ming Chun Hsueh, Yung Liao, Shao Hsi Chang, and Pin Hsuan Huang
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Male ,Health Status ,medicine.medical_treatment ,Leisure time ,Taiwan ,Walking ,030204 cardiovascular system & hematology ,lcsh:Geriatrics ,Logistic regression ,03 medical and health sciences ,Dogs ,Leisure Activities ,0302 clinical medicine ,Quality of life ,Dog walking ,Odds Ratio ,medicine ,Animals ,Humans ,030212 general & internal medicine ,Older adult ,Exercise ,Aged ,Rehabilitation ,Dog ownership ,business.industry ,Taiwanese ,Odds ratio ,Metropolitan area ,Confidence interval ,lcsh:RC952-954.6 ,Cross-Sectional Studies ,Female ,Geriatrics and Gerontology ,business ,human activities ,Research Article ,Demography - Abstract
Background This study examined the prevalence of dog ownership and dog walking and its association with leisure-time walking among metropolitan and nonmetropolitan older adults. Methods A telephone-based cross-sectional survey targeting Taiwanese older adults was conducted in November 2016. Data related to dog ownership, time spent dog walking (categorized as non-dog owner, non-dog walkers, and dog walkers), and sociodemographic variables were obtained from 1074 older adults. Adjusted binary logistic regression was then performed. Results In this sample, 12% of Taiwanese older adults owned a dog and 31% of them walked their dogs for an average of 232.13 min over 5.9 days/week (standard deviation = 2.03). Older adults living in nonmetropolitan areas were more likely to own a dog (14.7% vs. 9.1%) but less likely to walk their dog (25.9% vs. 39.6%) than were those living in metropolitan areas. Compared with non-dog owners, only older adults living in nonmetropolitan areas who were dog walkers achieved 150 min of leisure-time walking (odds ratio: 3.03, 95% confidence interval: 1.05–8.77), after adjustment for potential confounders. Conclusion Older Taiwanese adults living in nonmetropolitan areas who owned and walked their dogs were more likely to achieve health-enhancing levels of leisure-time walking. Tailored physical activity interventions for promoting dog walking should be developed for older adults who are dog owners living in nonmetropolitan areas and who do not engage in dog walking.
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- 2018
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39. Apparent Diffusion Coefficient is a Useful Biomarker for Monitoring Adipose-Derived Mesenchymal Stem Cell Therapy of Renal Ischemic-Reperfusion Injury
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Shu-Hang Ng, Chia-Hao Su, Chen-Chang Lee, Chung-Cheng Huang, Yi-Ling Chen, Hon-Kan Yip, Min-Chi Chen, Sheung-Fat Ko, and Chia-Chang Lee
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Male ,Cancer Research ,medicine.medical_specialty ,Time Factors ,030232 urology & nephrology ,Urology ,Adipose tissue ,Kidney ,Mesenchymal Stem Cell Transplantation ,030218 nuclear medicine & medical imaging ,Rats, Sprague-Dawley ,03 medical and health sciences ,0302 clinical medicine ,Fibrosis ,In vivo ,Animals ,Medicine ,Effective diffusion coefficient ,Radiology, Nuclear Medicine and imaging ,medicine.diagnostic_test ,business.industry ,CD68 ,Mesenchymal stem cell ,Mesenchymal Stem Cells ,Magnetic resonance imaging ,medicine.disease ,Diffusion Magnetic Resonance Imaging ,Adipose Tissue ,Oncology ,Creatinine ,Reperfusion Injury ,Stem cell ,business ,Biomarkers - Abstract
This study aimed to investigate the potential of apparent diffusion coefficient (ADC) for monitoring adipose-derived mesenchymal stem cell (ADMSC) therapy of renal ischemic-reperfusion injury (IRI). After baseline magnetic resonance imaging (MRI), 36 Sprague-Dawley rats with bilateral renal IRI were divided equally as groups 1, 2, and 3 (non-treated rats) and groups 4, 5, and 6 (ADMSC-treated rats, with 2 million ADMSCs injected via the tail vein at 6 h after IRI). Groups 1 and 4, 2 and 5, and 3 and 6 were euthanized at days 1, 3, and 7, respectively, after renal MRI. The ratios of ADC at different time points to baseline values in the cortex, outer, and inner stripes of outer medulla (OSOM/ISOM), assessments of monocyte chemoattractant protein-1 (MCP-1), CD68+ cells, tubular cast formation, and degree of fibrosis in three zones over time were compared between the non-treated and ADMSC-treated rats. Among three zones, the differences in cortical ADC and immunohistochemical changes between the non-treated and ADMSC-treated IRI rats over time were less obvious. Compared with the non-treated rats, the ADMSC-treated rats exhibited significantly higher ADC ratios of OSOM and ISOM at days 1 and 3 corresponding to significantly less MCP-1 staining, CD68+ cells, and tubular casts. From day 3 to day 7, coupling with the decrement of MCP-1 and CD68+ cells in IRI kidneys, the effect of cell density on ADC declined. By day 7, the ADMSC-treated rats showed significantly higher ADC ratios of ISOM than the non-treated IRI rats, indicating better recovery, which could be related to significantly fewer tubular casts and marked amelioration of fibrosis. We suggest ADC is a useful in vivo biomarker for monitoring ADMSC therapy of renal IRI.
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- 2018
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40. Effects of insulin resistance on the association between the circulating retinol-binding protein 4 level and clustering of pediatric cardiometabolic risk factors
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Chun-Ying Lee, Sharon Tsai, Te-Fu Chan, Yi-Ling Chen, Wei-Ting Lin, Hsiao-Ling Huang, Pei-Chen Lin, Yu-Ting Chin, Hui-Yi Lin, Chien-Hung Lee, and Pei-Wen Wu
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Male ,Pediatric Obesity ,medicine.medical_specialty ,Waist ,Adolescent ,Cross-sectional study ,Endocrinology, Diabetes and Metabolism ,030209 endocrinology & metabolism ,030204 cardiovascular system & hematology ,03 medical and health sciences ,chemistry.chemical_compound ,0302 clinical medicine ,Insulin resistance ,Metabolic Diseases ,Risk Factors ,Internal medicine ,Internal Medicine ,medicine ,Cluster Analysis ,Humans ,Child ,Metabolic Syndrome ,Cardiometabolic risk ,Retinol binding protein 4 ,Triglyceride ,biology ,business.industry ,medicine.disease ,Cross-Sectional Studies ,Endocrinology ,chemistry ,Cardiovascular Diseases ,Pediatrics, Perinatology and Child Health ,Homeostatic model assessment ,biology.protein ,Female ,Insulin Resistance ,Metabolic syndrome ,business ,Retinol-Binding Proteins, Plasma - Abstract
OBJECTIVES Retinol-binding protein 4 (RBP4) and insulin resistance (IR) are clinical parameters associated with cardiometabolic diseases. The mediating and modifying roles of IR on children's susceptibility to cardiometabolic disorders are undetermined. This study investigated the mediating and modifying effects of the homeostatic model assessment of IR (HOMA-IR) on the relationship between the serum RBP4 level and clustering of pediatric cardiometabolic risk factors. METHODS We assessed the diet, physical activity, cardiometabolic risk factors, and clinical parameters of 272 randomly selected adolescents from a large-scale cross-sectional study (n = 2727). Two HOMA-IRs (HOMA1-IR and HOMA2-IR) were used to evaluate the designated effects. RESULTS Levels of serum RBP4 positively correlated with the levels of the 2 HOMA-based-IRs, and HOMA-IR correlated to all components of pediatric metabolic syndrome (MetS), the number of abnormal components, and a body-weight-weighted principal component score extracted from 12 cardiometabolic risk factors. Increased RBP4 levels had positive effects on waist circumference (WC), triglyceride, and the number of abnormal MetS components (0.310 cm, 1.384 μg/dL, and 0.021 item elevations, respectively), and the HOMA-IRs explained 17.7% to 21.9%, 11.8% to 27.6%, and 23.8% to 25.0% of these effects. The association of WC and the number of abnormal MetS components with the serum RBP4 level was enhanced by higher HOMA-IR (β for interaction, 0.13 and 0.01 for HOMA1-IR, and 0.32 and 0.02 for HOMA2-IR, respectively). CONCLUSIONS HOMA-IR is associated with the circulating RBP4 level and cardiometabolic risk factors in adolescents. Pediatric HOMA-IR may have mediating and modifying effects on the positive correlations between RBP4 and the clustering of MetS components.
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- 2018
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41. Melatonin attenuated brain death tissue extract-induced cardiac damage by suppressing DAMP signaling
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Kuan-Hung Chen, Kun-Chen Lin, Pei-Hsun Sung, Hung-Sheng Lin, Mel S. Lee, Yi-Ling Chen, Fan-Yen Lee, Yi-Chen Li, Ling-Chun Lin, Hsueh-Wen Chang, Chun-Man Yuen, Pei-Lin Shao, and Hon-Kan Yip
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medicine.medical_specialty ,DNA damage ,Inflammation ,030204 cardiovascular system & hematology ,HMGB1 ,medicine.disease_cause ,Melatonin ,03 medical and health sciences ,heart function ,0302 clinical medicine ,Fibrosis ,Internal medicine ,medicine ,brain death ,damage-associated molecular patterns ,biology ,remote organ ,business.industry ,medicine.disease ,Endocrinology ,Oncology ,inflammation ,Apoptosis ,biology.protein ,medicine.symptom ,business ,Luzindole ,030217 neurology & neurosurgery ,Oxidative stress ,Research Paper ,medicine.drug - Abstract
We tested the hypothesis that melatonin prevents brain death (BD) tissue extract (BDEX)-induced cardiac damage by suppressing inflammatory damage-associated molecular pattern (DAMP) signaling in rats. Six hours after BD induction, levels of a DAMP component (HMGB1) and inflammatory markers (TLR-2, TLR-4, MYD88, IκB, NF-κB, IL-1β, IFN-γ, TNF-α and IL-6) were higher in brain tissue from BD animals than controls. Levels of HMGB1 and inflammatory markers were higher in BDEX-treated H9C2 cardiac myoblasts than in cells treated with healthy brain tissue extract. These increases were attenuated by melatonin but re-induced with luzindole (all P < 0.001). Additional male rats (n = 30) were divided into groups 1 (negative control), 2 (healthy brain tissue extract implanted in the left ventricular myocardium [LVM]), 3 (BDEX-LVM), 4 (BDEX-LVM + melatonin), and 5 (BDEX-LVM + melatonin + luzindole). Collagen deposition/fibrosis and LVM levels of MTR2, HMGB1, inflammatory markers, oxidative stress, apoptosis, mitochondrial damage and DNA damage were highest in group 3, lowest in groups 1 and 2, and higher in group 5 than in group 4. Heart function and LVM levels of MTR1 and anti-inflammatory, mitochondrial-integrity and anti-oxidative markers exhibited a pattern opposite that of the inflammatory markers in the five groups (all P < 0.0001). These results indicate melatonin inhibits BDEX-induced cardiac damage by suppressing the DAMP inflammatory axis.
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- 2017
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42. Skin Delivery of Clec4a Small Hairpin RNA Elicited an Effective Antitumor Response by Enhancing CD8+ Immunity In Vivo
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Hui Ping Hsu, Ming Derg Lai, Yi Chen, Yu Hsuan Hung, Yu Wei Chang, Chia Jung Li, Meng-Chi Yen, Chung Yen Li, Jang Yang Chang, Yi Ling Chen, and Tzu Yang Weng
- Subjects
0301 basic medicine ,medicine.medical_treatment ,gene gun ,Biology ,Article ,Gene gun ,Small hairpin RNA ,03 medical and health sciences ,0302 clinical medicine ,Immune system ,Cancer immunotherapy ,shRNA ,Drug Discovery ,medicine ,Cytotoxic T cell ,Gene silencing ,Dcir1 ,lcsh:RM1-950 ,Clec4a2 ,Immunotherapy ,Molecular biology ,lcsh:Therapeutics. Pharmacology ,030104 developmental biology ,Tumor progression ,030220 oncology & carcinogenesis ,Cancer research ,Molecular Medicine ,immunotherapy - Abstract
Clec4a has been reported to be an immune suppressor of dendritic cells (DCs), but its potential role in cancer therapy remains to be elucidated. The present study investigated whether downregulating the expression of Clec4a via skin delivery of small hairpin RNA (shRNA) using a gene gun produced stronger host immunity and inhibited tumor progression in animal models. Administration of Clec4a2 shRNA delayed tumor growth in both mouse bladder and lung tumor-bearing mouse models. The result was further confirmed with a compensation experiment showing that the antitumor effects induced by Clec4a2 shRNA were restored by co-injection of a plasmid expressing exogenous Clec4a2. Increased numbers of infiltrating CD4+ and CD8+ T cells at tumor sites were observed in mice treated with Clec4a2 shRNA. Splenocytes from mice with Clec4a2 shRNA administration exhibited stronger cytotoxic activity compared with splenocytes from control mice. CD8-deletion in vivo abrogated the antitumor effects elicited by Clec4a2 shRNA. Additionally, shClec4a enhanced the antitumor effects of the Neu DNA vaccine in the MBT-2 tumor model. In summary, the findings provide evidence that silencing of Clec4a2 expression via skin delivery of shRNA produces an effective antitumor response and that Clec4a2 shRNA may have therapeutic potential as an adjuvant for cancer immunotherapy.
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- 2017
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43. Importance of NADPH oxidase-mediated redox signaling in the detrimental effect of CRP on pancreatic insulin secretion
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Ya-Chin Wang, Po-Shiuan Hsieh, Yi-Ling Chen, Wan-Ning Hsu, Yu-Feng Tian, and Pei-Chi Chan
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Male ,medicine.medical_treatment ,Nitric Oxide Synthase Type II ,030204 cardiovascular system & hematology ,Guanidines ,Biochemistry ,Etanercept ,Mice ,chemistry.chemical_compound ,0302 clinical medicine ,Insulin-Secreting Cells ,Insulin Secretion ,Insulin ,Mice, Inbred BALB C ,NADPH oxidase ,biology ,Nitrotyrosine ,NF-kappa B ,Reactive Nitrogen Species ,Nitric oxide synthase ,C-Reactive Protein ,NG-Nitroarginine Methyl Ester ,Oxidation-Reduction ,Signal Transduction ,medicine.medical_specialty ,Proline ,030209 endocrinology & metabolism ,Cell Line ,Proinflammatory cytokine ,03 medical and health sciences ,Thiocarbamates ,Physiology (medical) ,Internal medicine ,medicine ,Animals ,Humans ,Viability assay ,Reactive nitrogen species ,Dose-Response Relationship, Drug ,Tumor Necrosis Factor-alpha ,Acetophenones ,NADPH Oxidases ,Acetylcysteine ,Endocrinology ,Gene Expression Regulation ,chemistry ,Apocynin ,biology.protein ,Tyrosine ,Reactive Oxygen Species - Abstract
Elevations in C-reactive protein (CRP) levels are positively correlated with the progress of type 2 diabetes mellitus. However, the effect of CRP on pancreatic insulin secretion is unknown. Here, we showed that purified human CRP impaired insulin secretion in isolated mouse islets and NIT-1 insulin-secreting cells in dose- and time-dependent manners. CRP increased NADPH oxidase-mediated ROS (reactive oxygen species) production, which simultaneously promoted the production of nitrotyrosine (an indicator of RNS, reactive nitrogen species) and TNFα, to diminish cell viability, insulin secretion in islets and insulin-secreting cells. These CRP-mediated detrimental effects on cell viability and insulin secretion were significantly reversed by adding NAC (a potent antioxidant), apocynin (a selective NADPH oxidase inhibitor), L-NAME (a non-selective nitric oxide synthase (NOS) inhibitor), aminoguanidine (a selective iNOS inhibitor), PDTC (a selective NFκB inhibitor) or Enbrel (an anti-TNFα fusion protein). However, CRP-induced ROS production failed to change after adding L-NAME, aminoguanidine or PDTC. In isolated islets and NIT-1 cells, the elevated nitrotyrosine contents by CRP pretreatment were significantly suppressed by adding L-NAME but not PDTC. Conversely, CRP-induced increases in TNF-α production were significantly reversed by administration of PDTC but not L-NAME. In addition, wild-type mice treated with purified human CRP showed significant decreases in the insulin secretion index (HOMA-β cells) and the insulin stimulation index in isolated islets that were reversed by the addition of L-NAME, aminoguanidine or NAC. It is suggested that CRP-activated NADPH-oxidase redox signaling triggers iNOS-mediated RNS and NFκB-mediated proinflammatory cytokine production to cause β cell damage in state of inflammation.
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- 2017
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44. Cyclin D1 overexpression correlates with poor tumor differentiation and prognosis in gastric cancer
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Yu Hsuan Hung, Yi Ling Chen, Meng-Chi Yen, Chih Yang Wang, Ming Derg Lai, Yan Shen Shan, and Hui Ping Hsu
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0301 basic medicine ,Oncology ,Cancer Research ,medicine.medical_specialty ,overall survival ,Cyclin D ,cyclin D1 ,03 medical and health sciences ,0302 clinical medicine ,Gastric Mixed Adenocarcinoma ,Cyclin D1 ,Cyclin D2 ,Internal medicine ,medicine ,Cyclin D3 ,neoplasms ,histological type ,biology ,Oncogene ,business.industry ,gastric cancer ,Cancer ,Articles ,medicine.disease ,digestive system diseases ,030104 developmental biology ,030220 oncology & carcinogenesis ,Cancer research ,biology.protein ,Adenocarcinoma ,business ,progression-free survival - Abstract
Overexpression of cyclin D is associated with the molecular tumorigenesis of gastric cancer. The purpose of the present study was to investigate the expression of cyclin D in human gastric cancer and to determine the potential correlations between cyclin D expression and clinicopathological characteristics of specific histological types, as well as its prognostic significance. In the present study, the expression of the cyclin D1 (CCND1), cyclin D2 (CCND2) and cyclin D3 (CCND3) genes in gastric cancer patients was explored using the Oncomine database, and their correlation with overall survival (OS) and progression-free survival (PFS) was evaluated using Kaplan-Meier analysis. The prognostic significance of CCND1 protein expression was evaluated by western blot analysis of 32 matched specimens of gastric adenocarcinomas and normal tissues obtained from patients treated at the National Cheng Kung University Hospital (Tainan, Taiwan). Analysis of the Oncomine cancer microarray database revealed that CCND1 gene expression was significantly increased in gastric intestinal-type adenocarcinoma, while CCND2 was significantly increased in diffuse gastric adenocarcinoma, gastric intestinal-type adenocarcinoma and gastric mixed adenocarcinoma. Kaplan-Meier analysis indicated that overexpression of CCND1 was associated with reduced OS and PFS. In addition, overexpression of CCND1 and downregulation of CCND2 were significantly correlated with receptor tyrosine-protein kinase erb-2-negative tumors and poor differentiation. The ratio of relative CCND1 expression (expressed as the CCND1/β-actin ratio) in tumor tissues compared with that in normal tissues was correlated with poor differentiation (P=0.0018). In summary, CCND1 overexpression is associated with shorter survival in patients with gastric cancer and with poorly differentiated tumors.
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- 2017
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45. The Role of Heated Humidified High-flow Nasal Cannula as Noninvasive Respiratory Support in Neonates
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Ke-Yun Chao, Yi-Ling Chen, Li-Yi Tsai, Yu-Hsuan Chien, and Shu-Chi Mu
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medicine.medical_specialty ,Hot Temperature ,medicine.medical_treatment ,medicine.disease_cause ,Humidifiers ,03 medical and health sciences ,0302 clinical medicine ,030225 pediatrics ,medicine ,Cannula ,Humans ,030212 general & internal medicine ,Continuous positive airway pressure ,Pediatrics, Perinatology, and Child Health ,Positive pressure ventilation ,non-invasive positive pressure ventilation ,Respiratory Distress Syndrome, Newborn ,Noninvasive Ventilation ,Respiratory distress ,Continuous Positive Airway Pressure ,nasal continuous positive airway pressure ,business.industry ,Infant, Newborn ,heated humidified high-flow nasal cannula ,lcsh:RJ1-570 ,lcsh:Pediatrics ,infant ,Respiratory support ,Surgery ,Anesthesia ,Pediatrics, Perinatology and Child Health ,High flow ,business ,Nasal cannula ,Infant, Premature - Abstract
Recently, heated humidified high-flow nasal cannula (HHHFNC) has been introduced and applied as a noninvasive respiratory support in neonates. Although HHHFNC is widely used in neonates presenting with respiratory distress, the efficiency and safety when compared with nasal continuous positive airway pressure or noninvasive positive pressure ventilation are still controversial. This review aims to evaluate the performance and applications of HHHFNC in neonates.
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- 2017
46. Effective protection against acute respiratory distress syndrome/sepsis injury by combined adipose-derived mesenchymal stem cells and preactivated disaggregated platelets
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Yung-Lung Chen, Pei-Hsun Sung, Hung-I Lu, Cheuk-Kwan Sun, Chih-Hung Chen, Kuan-Hung Chen, Yi-Ling Chen, Jiunn-Jye Sheu, Sheng-Ying Chung, Mel S. Lee, Tien-Hung Huang, Hon-Kan Yip, and Fan-Yen Lee
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0301 basic medicine ,medicine.medical_specialty ,ARDS ,adipose-derived mesenchymal stem cell ,Adipose tissue ,Acute respiratory distress ,030204 cardiovascular system & hematology ,Lung injury ,sepsis ,Sepsis ,03 medical and health sciences ,0302 clinical medicine ,Internal medicine ,medicine ,Oxygen inhalation ,business.industry ,acute respiratory distress syndrome ,medicine.disease ,University hospital ,Surgery ,030104 developmental biology ,Oncology ,inflammation ,platelets ,business ,Research Paper - Abstract
// Chih-Hung Chen 1 , Yung-Lung Chen 2 , Pei-Hsun Sung 2 , Cheuk-Kwan Sun 3 , Kuan-Hung Chen 4 , Yi-Ling Chen 2 , Tien-Hung Huang 2 , Hung-I Lu 5 , Fan-Yen Lee 5 , Jiunn-Jye Sheu 5 , Sheng-Ying Chung 2 , Mel S. Lee 6, * and Hon-Kan Yip 2, 7, 8, 9, 10, * 1 Divisions of General Medicine, Department of Internal Medicine, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan 2 Division of Cardiology, Department of Internal Medicine, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan 3 Department of Emergency Medicine, E-Da Hospital, I-Shou University School of Medicine for International Students, Kaohsiung, Taiwan 4 Department of Anesthesiology, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan 5 Division of Thoracic and Cardiovascular Surgery, Department of Surgery, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan 6 Department of Orthopedics, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan 7 Institute for Translational Research in Biomedicine, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung, Taiwan 8 Center for Shockwave Medicine and Tissue Engineering, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung, Taiwan 9 Department of Medical Research, China Medical University Hospital, China Medical University, Taichung, Taiwan 10 Department of Nursing, Asia University, Taichung, Taiwan * Both authors contributed equally to this work Correspondence to: Hon-Kan Yip, email: han.gung@msa.hinet.net Mel S. Lee, email: mellee@cgmh.org.tw Keywords: acute respiratory distress syndrome, sepsis, inflammation, adipose-derived mesenchymal stem cell, platelets Received: October 11, 2016 Accepted: March 06, 2017 Published: July 17, 2017 ABSTRACT This study assessed whether combining adipose-derived mesenchymal stem cells (ADMSC) with preactivated, disaggregated shape-changed platelets (PreD-SCP) was superior to either therapy alone for protecting rat lung from acute respiratory distress syndrome (ARDS) complicated by sepsis. ARDS and sepsis were induced through 100% oxygen inhalation and peritoneal administration of 1.5 mg/kg lipopolysaccharide (LPS), respectively. Adult-male Sprague-Dawley rats (n=40) were randomized into sham-control (SC), ARDS-LPS, ARDS-LPS-ADMSC (1.2x10 6 cells), ARDS-LPS-PreD-SCP (3.0x10 8 , intravenous administration), and ARDS-LPS-ADMS/PreD-SCP groups, and were sacrificed 72 h after 48 h ARDS induction. Lung injury scores (LIS) and collagen deposition were highest in ARDS-LPS, lowest in SC, higher in ARDS-LPS+ADMSC than in ARDS-LPS+PreD-SCP and ARDS-LPS+ADMS/PreD-SCP, and higher in ARDS-LPS+PreD-SCP than in ARDS-LPS+ADMS/PreD-SCP (all p
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- 2017
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47. Iron Status of Infants in the First Year of Life in Northern Taiwan
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Yung Ting Kuo, Mei Ling Chang, Yi Chun Chen, Chun Kuang Shih, Chiao Ming Chen, Shu Ci Mu, Sing Chung Li, In Mei Cheong, Li Yi Tsai, and Yi Ling Chen
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Male ,Pediatrics ,medicine.medical_specialty ,Iron ,Taiwan ,Breastfeeding ,Nutritional Status ,lcsh:TX341-641 ,Breast milk ,Article ,03 medical and health sciences ,0302 clinical medicine ,iron deficiency ,Risk Factors ,030225 pediatrics ,hemic and lymphatic diseases ,Odds Ratio ,Prevalence ,Humans ,Medicine ,030212 general & internal medicine ,Nutrition and Dietetics ,iron deficiency anemia ,Anemia, Iron-Deficiency ,business.industry ,Transferrin saturation ,fungi ,food and beverages ,nutritional and metabolic diseases ,Iron Deficiencies ,Iron deficiency ,Odds ratio ,medicine.disease ,infant ,Infant Formula ,Breast Feeding ,Cross-Sectional Studies ,Logistic Models ,Nutrition Assessment ,Iron-deficiency anemia ,Infant formula ,breast milk ,Female ,medicine.symptom ,business ,formula milk ,lcsh:Nutrition. Foods and food supply ,Weight gain ,Food Science - Abstract
Iron deficiency (ID) and iron deficiency anemia (IDA) typically occur in developing countries. Notably, ID and IDA can affect an infant&rsquo, s emotion, cognition, and development. Breast milk is considered the best food for infants. However, recent studies have indicated that breastfeeding for more than six months increases the risk of ID. This study investigated the prevalence of ID and IDA, as well as the association between feeding type and iron nutritional status in northern Taiwan. A cross-sectional study was conducted on infants who returned to the well-baby clinic for routine examination from October 2012 to January 2014. Overall, 509 infants aged 1&ndash, 12 months completed the iron nutritional status analysis, anthropometric measurement, and dietary intake assessment, including milk and complementary foods. The results revealed that 49 (10%) and 21 (4%) infants in their first year of life had ID and IDA, respectively, based on the World Health Organization criteria. Breastfed infants had a higher prevalence rate of ID and IDA than mixed-fed and formula-fed infants (p <, 0.001). Regarding biomarkers of iron status, plasma hemoglobin (Hb), ferritin, and transferrin saturation (%) levels were significantly lower in ID and IDA groups. The prevalence of ID and IDA were 3.7% and 2.7%, respectively, in infants under six months of age, but increased to 20.4% and 6.6%, respectively, in infants above six months of age. The healthy group had a higher total iron intake than ID and IDA groups, mainly derived from infant formula. The total dietary iron intake was positively correlated with infants&rsquo, Hb levels. Compared with formula-fed infants, the logistic regression revealed that the odds ratio for ID was 2.157 (95% confidence interval [CI]: 1.369&ndash, 3.399) and that for IDA was 4.196 (95% CI: 1.780&ndash, 9.887) among breastfed infants (p <, 0.001) after adjusted for all confounding factors (including gestational week, birthweight, sex, body weight percentile, body length percentile, age of infants, mothers&rsquo, BMI, gestational weight gain, education level, and hemoglobin level before delivery). In conclusion, our results determined that breastfeeding was associated with an increased the prevalence of ID and/or IDA, especially in infants above six months. This suggests that mothers who prolonged breastfeed after six months could provide high-quality iron-rich foods to reduce the prevalence of ID and IDA.
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- 2020
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48. Infants' Vitamin D Nutritional Status in the First Year of Life in Northern Taiwan
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Mei Ling Chang, Shu Ci Mu, Sing Chung Li, Yi Ling Chen, Li Yi Tsai, Yung Ting Kuo, In Mei Cheong, and Chiao Ming Chen
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0301 basic medicine ,Male ,Pediatrics ,medicine.medical_specialty ,breastfeeding ,vitamin D deficiency ,Breastfeeding ,Taiwan ,Nutritional Status ,First year of life ,lcsh:TX341-641 ,formula ,Diet Surveys ,Article ,03 medical and health sciences ,Eating ,0302 clinical medicine ,Epidemiology ,medicine ,Vitamin D and neurology ,Odds Ratio ,Prevalence ,Humans ,030212 general & internal medicine ,Vitamin D ,Infant Nutritional Physiological Phenomena ,030109 nutrition & dietetics ,Nutrition and Dietetics ,Anthropometry ,business.industry ,Infant, Newborn ,Infant ,Odds ratio ,Feeding Behavior ,medicine.disease ,Diet ,Breast Feeding ,Cross-Sectional Studies ,Infant formula ,Female ,Seasons ,business ,lcsh:Nutrition. Foods and food supply ,Food Science - Abstract
Vitamin D deficiency (VDD) and insufficiency (VDI) are common among exclusively breastfeeding infants. However, epidemiological evidence for the prevalence of VDD in infants during their first year of life in Taiwan has never been found. This trial determined the prevalence of VDD and VDI and the association between dietary vitamin D and vitamin D nutritional status in Northern Taiwan. A cross-sectional study was conducted on infants who returned to well-baby examinations from October 2012 to January 2014 in three hospitals: Shin Kong Wu Ho-Su Memorial Hospital, Taipei Medical University Hospital, and Shuang Ho Hospital. The specific vitamin D cut-off concentrations for VDD, VDI, and VDS are 25(OH)D3 levels &le, 20, 21&ndash, 29, and &ge, 30 (ng/mL). Overall, 481 infants&rsquo, parents completed a questionnaire comprising questions related to vitamin D nutritional status, including weekly time outdoors, breastfeeding status, anthropometric measurement, and assessment of dietary intake, including milk and complementary food. The results revealed that 197 (41%) and 212 (44%) of infants in their first year of life had VDI and VDD, respectively, by the Endocrine Society guidelines. Breastfed infants had a higher prevalence of VDI (86.1%) than did mixed-fed (51.9%) and formula-fed (38.5%) infants (p <, 0.001). The prevalence of VDD was 55.4% in infants aged under six months but increased to 61.6% in infants aged over six months. Infants in the VDI and VDD groups had the same anthropometrics as those in the vitamin D sufficiency (VDS) group. Our results revealed that 25(OH)D3 had a negative correlation with the intact parathyroid hormone (iPTH) when the serum 25(OH)D3 level &le, 20 ng/mL (r = &minus, 0.21, p = 0.001). The VDS group had a higher total vitamin D intake than did the VDI and VDD groups, which was mainly obtained from infant formula. Our data revealed that dietary vitamin D intake and birth season were major indicators in predicting VDD. Lower dietary vitamin D intake and born in winter and spring significantly increased the odds ratio (OR) for VDI by 1.15 (95% CI 1.09&ndash, 1.20) and 2.02 (95% CI 1.10&ndash, 3.70), respectively, and that for VDD by 1.23 (95% CI 1.16&ndash, 1.31) and 2.37 (95% CI 1.35&ndash, 4.17) without covariates adjustment, respectively. Furthermore, ORs for VDI and VDD significantly differed after adjustment for covariates. In conclusion, the prevalence of VDI and VDD were high in infants during the first year of life. Breastfeeding infants had difficulty in obtaining sufficient vitamin D from diet. In cases where the amount of sun exposure that is safe and sufficient to improve vitamin D status is unclear, breastfed infants aged below one year old are recommended to be supplemented with vitamin D.
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- 2019
49. Proof-of-concept clinical trial of etokimab shows a key role for IL-33 in atopic dermatitis pathogenesis
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Yi-Ling Chen, Liliana Cifuentes, Teena MacKenzie, Graham S. Ogg, Clare S. Hardman, Danuta Gutowska-Owsiak, Dominic Waithe, Marco Londei, Antonia Lloyd-Lavery, Melanie Westmoreland, and Allison Marquette
- Subjects
Neutrophils ,medicine.medical_treatment ,Eczema ,Eczema Area and Severity Index ,Dermatitis, Atopic ,Receptors, Interleukin-8A ,Pathogenesis ,Atopy ,Cell Movement ,In vivo ,medicine ,Humans ,Skin ,Inflammation ,House dust mite ,biology ,business.industry ,Antibodies, Monoclonal ,Extracellular Fluid ,General Medicine ,Atopic dermatitis ,Interleukin-33 ,biology.organism_classification ,medicine.disease ,Interleukin-12 ,Interleukin 33 ,Cytokine ,Immunology ,business - Abstract
Targeted inhibition of cytokine pathways provides opportunities to understand fundamental biology in vivo in humans. The IL-33 pathway has been implicated in the pathogenesis of atopy through genetic and functional associations. We investigated the role of IL-33 inhibition in a first-in-class phase 2a study of etokimab (ANB020), an IgG1 anti–IL-33 monoclonal antibody, in patients with atopic dermatitis (AD). Twelve adult patients with moderate to severe AD received a single systemic administration of etokimab. Rapid and sustained clinical benefit was observed, with 83% achieving Eczema Area and Severity Index 50 (EASI50), and 33% EASI75, with reduction in peripheral eosinophils at day 29 after administration. We noted significant reduction in skin neutrophil infiltration after etokimab compared with placebo upon skin challenge with house dust mite, reactivity to which has been implicated in the pathogenesis of AD. We showed that etokimab also inhibited neutrophil migration to skin interstitial fluid in vitro. Besides direct effects on neutrophil migration, etokimab revealed additional unexpected CXCR1-dependent effects on IL-8–induced neutrophil migration. These human in vivo findings confirm an IL-33 upstream role in modulating skin inflammatory cascades and define the therapeutic potential for IL-33 inhibition in human diseases, including AD.
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- 2019
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50. Combined Therapy With Hyperbaric Oxygen and Melatonin Effectively Reduce Brain Infarct Volume and Preserve Neurological Function After Acute Ischemic Infarct in Rat
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Sheung-Fat Ko, Kun-Chen Lin, Mel S. Lee, Yi-Ling Chen, Christopher Glenn Wallace, Hon-Kan Yip, and Kuan-Hung Chen
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Brain Infarction ,Male ,medicine.medical_specialty ,Ischemia ,Inflammation ,Apoptosis ,medicine.disease_cause ,Pathology and Forensic Medicine ,Brain Ischemia ,Melatonin ,Rats, Sprague-Dawley ,03 medical and health sciences ,Cellular and Molecular Neuroscience ,0302 clinical medicine ,Internal medicine ,medicine ,Animals ,030304 developmental biology ,0303 health sciences ,Hyperbaric Oxygenation ,biology ,business.industry ,Brain ,General Medicine ,medicine.disease ,Rats ,Endothelial stem cell ,Disease Models, Animal ,Oxidative Stress ,medicine.anatomical_structure ,Endocrinology ,Neuroprotective Agents ,Neurology ,biology.protein ,Neurology (clinical) ,Neuron ,medicine.symptom ,NeuN ,business ,030217 neurology & neurosurgery ,Oxidative stress ,medicine.drug - Abstract
This study tested the hypothesis that combined hyperbaric oxygen (HBO) and melatonin (Mel) was superior to either one for protecting the brain functional and parenchymal integrity from acute ischemic stroke (IS) injury. Adult-male Sprague-Dawley rats were divided into groups 1 (sham-operated control), 2 (IS), 3 (IS + HBO), 4 (IS + Mel), and 5 (IS + HBO-Mel). By day 28 after IS, the brain infarct area (BIA) was lowest in group 1, highest in group 2, significantly higher in groups 3 and 4 than in group 5, but not different between groups 3 and 4. The neurological function at day 7, 14, and 28 exhibited an opposite pattern to BIA among the 5 groups. The protein expressions of inflammatory (IL-1β/IL-6/iNOS/TNF-α/p-NF-κB), apoptotic (cleaved-caspase3/cleaved-PARP/mitochondrial Bax), mitochondrial/DNA-damaged (cytochrome-C/γ-H2AX), oxidative stress (NOX-1/NOX-2), and autophagy (i.e. ratio of CL3B-II/CL3B-I) biomarkers displayed an identical pattern of BIA among 5 groups. Cellular expressions of inflammation (F4/80+/GFAP+) and DNA-damaged biomarker (γ-H2AX+) exhibited an identical pattern, whereas the integrities of myelin sheath/neuron (MPB+/NeuN+), endothelial cell (CD31+/vWF+), and number of small vessels exhibited an opposite pattern of BIA among the 5 groups. Combined HBO-Mel therapy offered an additional benefit in protecting the brain against IS injury.
- Published
- 2019
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