289 results on '"Zhao MZ"'
Search Results
2. Cell responses to two kinds of nanohydroxyapatite with different sizes and crystallinities
- Author
-
Wei SC, Wei J, Ma J, Lu JX, Zhao MZ, and Liu XC
- Subjects
Medicine (General) ,R5-920 - Abstract
Xiaochen Liu1, Minzhi Zhao1, Jingxiong Lu2, Jian Ma4, Jie Wei2, Shicheng Wei1,31Center for Biomedical Materials and Tissue Engineering, Academy for Advanced Interdisciplinary Studies, Peking University, Beijing, 2Key Laboratory for Ultrafine Materials of Ministry of Education, East China University of Science and Technology, Shanghai, 3Department of Oral and Maxillofacial Surgery, School of Stomatology, Peking University, Beijing, 4Hospital of Stomatology, Tongji University, Shanghai, ChinaIntroduction:Hydroxyapatite (HA) is the principal inorganic constituent of human bone. Due to its good biocompatibility and osteoconductivity, all kinds of HA particles were prepared by different methods. Numerous reports demonstrated that the properties of HA affected its biological effects.Methods: Two kinds of nanohydroxyapatite with different sizes and crystallinities were obtained via a hydrothermal treatment method under different temperatures. It was found that at a temperature of 140°C, a rod-like crystal (n-HA1) with a diameter of 23 ± 5 nm, a length of 47 ± 14 nm, and crystallinity of 85% ± 5% was produced, while at a temperature of 80°C, a rod-like crystal (n-HA2) with a diameter of 16 ± 3 nm, a length of 40 ± 10 nm, and crystallinity of 65% ± 3% was produced. The influence of nanohydroxyapatite size and crystallinity on osteoblast viability was studied by MTT, scanning electron microscopy, and flow cytometry.Results: n-HA1 gave a better biological response than n-HA2 in promoting cell growth and inhibiting cell apoptosis, and also exhibited much more active cell morphology. Alkaline phosphatase activity for both n-HA2 and n-HA1 was obviously higher than for the control, and no significant difference was found between n-HA1 and n-HA2. The same trend was observed on Western blotting for expression of type I collagen and osteopontin. In addition, it was found by transmission electron microscopy that large quantities of n-HA2 entered into the cell and damaged the cellular morphology. Release of tumor necrosis factor alpha from n-HA2 was markedly higher than from n-HA1, indicating that n-HA2 might trigger a severe inflammatory response.Conclusion: This work indicates that not all nanohydroxyapatite should be considered a good biomaterial in future clinical applications.Keywords: nanohydroxyapatite, osteoblast-like cells, cell viability, cell differentiation
- Published
- 2012
3. Growth factor (HGF, FGF2, VEGF) gene-modified bone marrow stromal cells improve neurological outcome after stroke in rats
- Author
-
Nonoguchi, N, Zhao, MZ, Ikeda, N, Kajimoto, Y, Miyatake, S, Kuroiwa, T, Nonoguchi, N, Zhao, MZ, Ikeda, N, Kajimoto, Y, Miyatake, S, and Kuroiwa, T
- Published
- 2006
4. Bone marrow stromal cells that enhanced fibroblast growth factor-2 secretion by herpes simplex virus vector improve neurological outcome after transient focal cerebral ischemia in rats.
- Author
-
Ikeda N, Nonoguchi N, Zhao MZ, Watanabe T, Kajimoto Y, Furutama D, Kimura F, Dezawa M, Coffin RS, Otsuki Y, Kuroiwa T, Miyatake S, Ikeda, Naokado, Nonoguchi, Naosuke, Zhao, Ming Zhu, Watanabe, Takuji, Kajimoto, Yoshinaga, Furutama, Daisuke, Kimura, Fumiharu, and Dezawa, Mari
- Published
- 2005
- Full Text
- View/download PDF
5. Tocilizumab for Advanced Non-Small-Cell Lung Cancer With Concomitant Cachexia: An Observational Study.
- Author
-
Du Y, Liu XY, Pan RL, Zhang XT, Si XY, Chen MJ, Wang MZ, and Zhang L
- Abstract
Background: Cancer cachexia significantly contributes to morbidity and mortality in patients with non-small-cell lung cancer (NSCLC). Inflammatory pathways mediated by interleukin-6 (IL-6) play a crucial role in the development of cancer cachexia. This study aimed to investigate the use of tocilizumab in the management of NSCLC with coexisting IL-6-elevated cachexia., Methods: In this retrospective study, data were collected from patients with NSCLC and concurrent IL-6-elevated cachexia who received either tocilizumab plus antitumour therapy or antitumour therapy alone. The primary endpoints were overall survival (OS) and improved modified Glasgow Prognostic Score (mGPS) at Week 12. The secondary endpoints included changes from baseline over 12 weeks in body weight, albumin, C-reactive protein (CRP) and mGPS. Qualitative improvements in patient self-rated appetite and fatigue were reported as exploratory analysis., Results: The study included 49 patients diagnosed with NSCLC and IL-6-elevated cachexia, Eastern Cooperative Oncology Group performance status of 2-4. Of these, 26 received tocilizumab in combination with antitumour therapy, and 23 received antitumour therapy alone. The majority of these patients were male (87.8%). Baseline characteristics were almost identical between the two groups. The tocilizumab group demonstrated a significantly longer median OS compared to the control group (15.1 vs. 3.2 months; hazard ratio 0.18, 95% confidence interval 0.08-0.38; p < 0.001). The rate of patients surviving with mGPS improvement at Week 12 was significantly higher in the tocilizumab group than in the control group (risk difference 0.88, 95% confidence interval 0.75-1.00; p < 0.001). Over the 12-week period, significant improvements were observed in body weight, albumin, CRP and mGPS in the tocilizumab group compared to the control group (body weight: 5.15 ± 0.53 kg vs. -5.69 ± 0.76 kg, p = 0.041; albumin: 5.89 ± 0.70 g/L vs. -2.97 ± 0.71 g/L, p < 0.001; CRP: -91.50 ± 7.15 mg/L vs. 9.47 ± 13.69 mg/L, p < 0.001; mGPS: -1.61 ± 0.15 vs. 0.03 ± 0.08, p < 0.001). The tocilizumab group also displayed significantly higher rates of improvement in appetite and fatigue (both p < 0.001). The incidence of Grade 3 or higher adverse events was 34.6% in the tocilizumab group compared to 78.3% in the control group. Tocilizumab-related adverse events were observed in three patients (11.5%), including two cases of neutropenia and one case of skin and subcutaneous tissue infection., Conclusion: Tocilizumab demonstrated significant benefits in survival and various clinical parameters, including body weight, albumin, CRP, mGPS and symptom burden in patients with NSCLC and concurrent IL-6-elevated cachexia. Given the existing unmet medical need for effective interventions for cancer cachexia, tocilizumab may be considered as a potential treatment option., (© 2024 The Author(s). Journal of Cachexia, Sarcopenia and Muscle published by Wiley Periodicals LLC.)
- Published
- 2024
- Full Text
- View/download PDF
6. Post-Uterine Artery Embolization: 3-Day MRI Changes and Their Predictive Value for Therapeutic Efficacy in Symptomatic Uterine Fibroids.
- Author
-
Chen XY, Zhang MZ, Wang JK, Li B, Qin RQ, Zhang YB, Wan CY, Hu RC, Zhu JY, and Zhou B
- Abstract
Objectives: To summarize and discuss3-days MRI changes after uterine artery embolization (UAE) and their predictive value for efficacy., Methods: From August 2016 to April 2023, 52 patients underwent enhanced MRI within 3 days post-embolization. We retrospectively analyzed clinical and imaging data, focusing on MR characteristics at the 3-day mark, comparing pre- and post-embolization images. Patients were categorized based on 3-day MR findings into complete and incomplete necrosis groups, with clinical efficacy compared over 6 months., Results: Our study included 30 cases of multiple leiomyomas and 22 of single leiomyomas. Postoperative MRI revealed complete necrosis in 31 tumors and incomplete necrosis in 21 tumors. At 3 days, MR ADC imaging showed increased signals in necrotic areas, mildly increased signals on T2-weighted images, and minimal changes on T1-weighted images. Six-month follow-up showed no significant difference in symptom improvement between groups (p = 0.524, p = 0.587, p = 0.615). However, a significant difference was found in leiomyoma volume reduction, with 70.63 ± 15.53% in the complete necrosis group and 51.36 ± 25.20% in the incomplete necrosis group (p<0.001), highlighting the impact of necrosis extent on volumetric reduction., Conclusion: Short-term MRI changes after UAE can reflect changes in blood supply to fibroids and normal uterine tissue, and have good predictive value for medium-term embolization efficacy., Advances in Knowledge: This study describes short-term MR manifestations of complete and incomplete embolism, aiding in predicting long-term outcome., (© The Author(s) 2024. Published by Oxford University Press on behalf of the British Institute of Radiology. All rights reserved. For permissions, please email: journals.permissions@oup.com.)
- Published
- 2024
- Full Text
- View/download PDF
7. Circadian variation pattern of sudden cardiac arrest occurred in Chinese community.
- Author
-
Yao PC, Li MH, Chen M, Che QJ, Fei YD, Li GL, Sun J, Wang QS, Wu YB, Yang M, Zhao MZ, Yang YL, Cai ZX, Luo L, Wu H, and Li YG
- Subjects
- Humans, Male, Female, China epidemiology, Middle Aged, Aged, Cardiopulmonary Resuscitation methods, Cardiopulmonary Resuscitation statistics & numerical data, Electrocardiography, Incidence, Time Factors, Retrospective Studies, Electric Countershock instrumentation, Risk Factors, Out-of-Hospital Cardiac Arrest physiopathology, Out-of-Hospital Cardiac Arrest therapy, Out-of-Hospital Cardiac Arrest epidemiology, Out-of-Hospital Cardiac Arrest diagnosis, East Asian People, Circadian Rhythm physiology, Death, Sudden, Cardiac epidemiology, Death, Sudden, Cardiac etiology, Death, Sudden, Cardiac prevention & control
- Abstract
Background: The circadian variation pattern of sudden cardiac arrest (SCA) occurred in Chinese community including both community healthcare centres and primary hospitals remains unknown. This study analysed the circadian variation of SCA in the Chinese community., Methods: Data between 2018 and 2022 from the remote ECG diagnosis system of Xinhua Hospital affiliated to Shanghai Jiao Tong University School of Medicine were analysed to examine the circadian rhythm of SCA, stratified by initial shockable (ventricular tachycardia or ventricular fibrillation) versus non-shockable (asystole or pulseless electrical activity) rhythm., Results: Among 10 210 cases of SCA, major cases (8736, 85.6%) were non-shockable and 1474 (14.4%) cases were shockable. The circadian rhythm of SCA was as follows: peak time was from 08:00 to 11:59 (30.1%), while deep valley was from 00:00 to 03:59 (7.5%). The proportions of events by non-shockable and shockable events were similar and both reached their peak from 08:00 to 11:59, with a percentage of 29.0% and 36.4%, respectively. Multivariable analysis showed that the relative risk of shockable compared with non-shockable arrests was lower between 00:00 and 03:59 (adjusted OR (aOR): 0.72, 95% CI: 0.54 to 0.97, p=0.028) and 04:00 to 07:59 (aOR: 0.60, 95% CI: 0.46 to 0.79, p<0.001), but higher between 08:00 and 11:59 (aOR: 1.34, 95% CI: 1.09 to 1.64, p=0.005)., Conclusions: In Chinese community, there is a distinct circadian rhythm of SCA, regardless of initial rhythms. Our findings may be helpful in decision-making, in that more attention and manpower should be placed on the morning hours of first-aid and resuscitation management in Chinese community., Competing Interests: Competing interests: Y-BW and Z-XC were employed by the company Shanghai Siwei Medical Co. Ltd. The remaining authors declared that the research was conducted in the absence of any commercial or financial relationships that could be construed as competing interests., (© Author(s) (or their employer(s)) 2024. Re-use permitted under CC BY. Published by BMJ.)
- Published
- 2024
- Full Text
- View/download PDF
8. Assessment of the impact of low-density lipoprotein cholesterol on retinal vessels using optical coherence tomography angiography.
- Author
-
He Y, Qin MZ, Cao K, Zhang YP, Jiao X, Zhang Z, Wang GH, Liu Q, Liu Q, Ma JB, Jiang X, and Guo CX
- Subjects
- Humans, Male, Female, Aged, Cross-Sectional Studies, Middle Aged, Aged, 80 and over, Macula Lutea diagnostic imaging, Macula Lutea blood supply, Risk Factors, Tomography, Optical Coherence methods, Retinal Vessels diagnostic imaging, Cholesterol, LDL blood
- Abstract
Background: Low-density lipoprotein cholesterol (LDL-C) is acknowledged as an independent risk factor (IRF) for atherosclerotic cardiovascular disease. Nevertheless, studies on the impact of LDL-C on microvasculature are still scarce. The retina, abundant in microvasculature, can now be examined for microvascular alterations through the novel, non-invasive, and quantitative optical coherence tomography angiography (OCTA) technique., Methods: In this cross-sectional study, 243 patients from the geriatric department were recruited (between December 2022 and December 2023). Individuals were classified into four groups based on their LDL-C levels: Group 1 (≤ 1.8 mmol/L), Group 2 (> 1.8 mmol/L to ≤ 2.6 mmol/L), Group 3 (> 2.6 mmol/L to ≤ 3.4 mmol/L), and Group 4 (> 3.4 mmol/L). The OCTA results including retinal vessel density (VD), foveal avascular zone (FAZ) area, macula thickness, and retinal nerve fiber layer (RNFL) thickness were contrasted across these groups. T-tests, analysis of variance, Welch's tests, or rank-sum tests were employed for statistical comparisons. In cases where significant differences between groups were found, post-hoc multiple comparisons or rank-sum tests were performed for pairwise group comparisons. Spearman's correlation coefficient was employed to perform bivariate correlation analysis to evaluate the relationship between LDL-C levels and various OCTA measurements. Multivariable regression analysis was used to evaluate the association between LDL-C levels and various OCTA measurements. Linear regression analysis or mixed-effects linear models were applied., Results: It was discovered that individuals with LDL-C levels exceeding 2.6 mmol/L (Groups 3 and 4) exhibited reduced VD in the retina, encompassing both the optic disc and macular regions, compared to those with LDL-C levels at or below 2.6 mmol/L (Groups 1 and 2). A negative correlation among LDL-C levels and retinal VD was identified, with r values spanning from - 0.228 to -0.385. Further regression analysis presented β values between - 0.954 and - 2.378. Additionally, no notable disparities were detected among the groups regarding FAZ area, macular thickness, and RNFL thickness., Conclusions: The outcomes of this study suggest that elevated LDL-C levels constitute an IRF for decreased VD across the entire retina., Trial Registration: NCT05644548, December 1, 2022., (© 2024. The Author(s).)
- Published
- 2024
- Full Text
- View/download PDF
9. Machine learning model predicts airway stenosis requiring clinical intervention in patients after lung transplantation: a retrospective case-controlled study.
- Author
-
Tian D, Zuo YJ, Yan HJ, Huang H, Liu MZ, Yang H, Zhao J, Shi LZ, and Chen JY
- Subjects
- Humans, Male, Retrospective Studies, Middle Aged, Female, Adult, Case-Control Studies, Constriction, Pathologic, Postoperative Complications, Risk Factors, Lung Transplantation, Machine Learning
- Abstract
Background: Patients with airway stenosis (AS) are associated with considerable morbidity and mortality after lung transplantation (LTx). This study aims to develop and validate machine learning (ML) models to predict AS requiring clinical intervention in patients after LTx., Methods: Patients who underwent LTx between January 2017 and December 2019 were reviewed. The conventional logistic regression (LR) model was fitted by the independent risk factors which were determined by multivariate LR. The optimal ML model was determined based on 7 feature selection methods and 8 ML algorithms. Model performance was assessed by the area under the curve (AUC) and brier score, which were internally validated by the bootstrap method., Results: A total of 381 LTx patients were included, and 40 (10.5%) patients developed AS. Multivariate analysis indicated that male, pulmonary arterial hypertension, and postoperative 6-min walking test were significantly associated with AS (all P < 0.001). The conventional LR model showed performance with an AUC of 0.689 and brier score of 0.091. In total, 56 ML models were developed and the optimal ML model was the model fitted using a random forest algorithm with a determination coefficient feature selection method. The optimal model exhibited the highest AUC and brier score values of 0.760 (95% confidence interval [CI], 0.666-0.864) and 0.085 (95% CI, 0.058-0.117) among all ML models, which was superior to the conventional LR model., Conclusions: The optimal ML model, which was developed by clinical characteristics, allows for the satisfactory prediction of AS in patients after LTx., (© 2024. The Author(s).)
- Published
- 2024
- Full Text
- View/download PDF
10. Nocardamine mitigates cellular dysfunction induced by oxidative stress in periodontal ligament stem cells.
- Author
-
He HP, Zhao MZ, Jiao WH, Liu ZQ, Zeng XH, Li QL, Hu TY, and Cheng BH
- Subjects
- Humans, beta Catenin metabolism, Cell Survival drug effects, Wnt Signaling Pathway drug effects, MAP Kinase Signaling System drug effects, Cells, Cultured, Reactive Oxygen Species metabolism, Periodontal Ligament cytology, Periodontal Ligament metabolism, Periodontal Ligament drug effects, Oxidative Stress drug effects, Stem Cells metabolism, Stem Cells drug effects, Hydrogen Peroxide pharmacology, Hydrogen Peroxide toxicity, Osteogenesis drug effects, Cell Differentiation drug effects
- Abstract
Background: The role of periodontal ligament stem cells (PDLSCs) in repairing periodontal destruction is crucial, but their functions can be impaired by excessive oxidative stress (OS). Nocardamine (NOCA), a cyclic siderophore, has been shown to possess anti-cancer and anti-bacterial properties. This study aimed to investigate the protective mechanisms of NOCA against OS-induced cellular dysfunction in PDLSCs., Methods: The cytotoxicity of NOCA on PDLSCs was assessed using a CCK-8 assay. PDLSCs were then treated with hydrogen peroxide (H
2 O2 ) to induce OS. ROS levels, cell viability, and antioxidant factor expression were analyzed using relevant kits after treatment. Small molecule inhibitors U0126 and XAV-939 were employed to block ERK signaling and Wnt pathways respectively. Osteogenic differentiation was assessed using alkaline phosphatase (ALP) activity staining and Alizarin Red S (ARS) staining of mineralized nodules. Expression levels of osteogenic gene markers and ERK pathway were determined via real-time quantitative polymerase chain reaction (RT-qPCR) or western blot (WB) analysis. β-catenin nuclear localization was examined by western blotting and confocal microscopy., Results: NOCA exhibited no significant cytotoxicity at concentrations below 20 µM and effectively inhibited H2 O2 -induced OS in PDLSCs. NOCA also restored ALP activity, mineralized nodule formation, and the expression of osteogenic markers in H2 O2 -stimulated PDLSCs. Mechanistically, NOCA increased p-ERK level and promoted β-catenin translocation into the nucleus; however, blocking ERK pathway disrupted the osteogenic protection provided by NOCA and impaired its ability to induce β-catenin nuclear translocation under OS conditions in PDLSCs., Conclusions: NOCA protected PDLSCs against H2 O2 -induced OS and effectively restored impaired osteogenic differentiation in PDLSCs by modulating the ERK/Wnt signaling pathway., (© 2024. The Author(s).)- Published
- 2024
- Full Text
- View/download PDF
11. Association between priori and posteriori dietary patterns and gastric cancer risk: an updated systematic review and meta-analysis of observational studies.
- Author
-
Luo MZ, Shu L, and Ye XS
- Abstract
An increasing number of epidemiological studies have explored the relationship between the risk of gastric cancer and specific dietary patterns, but the findings remain inconclusive. We, therefore, performed this comprehensive systematic review and meta-analysis to analyze the available evidence regarding the associations between a priori and a posteriori dietary patterns and the risk of gastric cancer. A systematic search of six electronic databases, including PubMed, Web of Science, EBSCO, Scopus, China National Knowledge Infrastructure (CNKI), and Wanfang Data, was carried out to retrieve the relevant articles published up to March 2024. Thirty-six studies (10 cohort and 26 case-control studies) with a total of 2 181 762 participants were included in the final analyses. Combining 15 effect sizes extracted from 12 articles, we observed a reduced risk of gastric cancer in the highest versus the lowest categories of the Mediterranean diet [relative risk (RR), 0.72; 95% confidence interval (CI), 0.61-0.85; P < 0.001]. Combining 11 effect sizes from 10 articles (involving 694 240 participants), we found that the highest Dietary Inflammatory Index scores were significantly associated with an increased risk of gastric cancer (RR, 1.32; 95% CI, 1.11-1.57; P < 0.001). A reduced risk of gastric cancer was shown for the highest compared with the lowest categories of healthy dietary pattern (RR, 0.78; 95% CI, 0.67-0.91; P = 0.002). Conversely, the highest adherence to the Western dietary pattern was associated with an increased risk of gastric cancer (RR, 1.33; 95% CI, 1.19-1.49; P < 0.001). Our study demonstrated that the Mediterranean diet and a healthy dietary pattern were associated with a decreased risk of gastric cancer. Conversely, the Dietary Inflammatory Index and Western dietary pattern were associated with an increased risk of gastric cancer., (Copyright © 2024 The Author(s). Published by Wolters Kluwer Health, Inc.)
- Published
- 2024
- Full Text
- View/download PDF
12. Wearable sensor supports in-situ and continuous monitoring of plant health in precision agriculture era.
- Author
-
Li XH, Li MZ, Li JY, Gao YY, Liu CR, and Hao GF
- Subjects
- Crops, Agricultural, Biosensing Techniques instrumentation, Wearable Electronic Devices, Agriculture methods
- Abstract
Plant health is intricately linked to crop quality, food security and agricultural productivity. Obtaining accurate plant health information is of paramount importance in the realm of precision agriculture. Wearable sensors offer an exceptional avenue for investigating plant health status and fundamental plant science, as they enable real-time and continuous in-situ monitoring of physiological biomarkers. However, a comprehensive overview that integrates and critically assesses wearable plant sensors across various facets, including their fundamental elements, classification, design, sensing mechanism, fabrication, characterization and application, remains elusive. In this study, we provide a meticulous description and systematic synthesis of recent research progress in wearable sensor properties, technology and their application in monitoring plant health information. This work endeavours to serve as a guiding resource for the utilization of wearable plant sensors, empowering the advancement of plant health within the precision agriculture paradigm., (© 2024 The Authors. Plant Biotechnology Journal published by Society for Experimental Biology and The Association of Applied Biologists and John Wiley & Sons Ltd.)
- Published
- 2024
- Full Text
- View/download PDF
13. Respiratory internal kinematics of the tongue base and soft palate in obese minipigs with obstructive sleep apnea.
- Author
-
Liu ZJ, Yang M, Deng MZ, Abdelfattah MY, Baldwin MC, and Weaver EM
- Subjects
- Animals, Swine, Biomechanical Phenomena, Electromyography, Respiration, Male, Sleep Apnea, Obstructive physiopathology, Swine, Miniature, Tongue physiopathology, Palate, Soft physiopathology, Obesity physiopathology, Obesity complications, Obesity pathology
- Abstract
It is largely unknown how the tongue base and soft palate deform to alter the configuration of the oropharyngeal airway during respiration. This study is to address this important gap. After live sleep monitoring of five Yucatan and two Panepinto minipigs to verify obstructive sleep apnea (OSA), eight and four ultrasonic crystals were implanted into the tongue base and soft palate to circumscribe a cubic and square region, respectively. The 3D and 2D deformational changes of the circumscribed regions were measured simultaneously with electromyographic activity of the oropharyngeal muscles during spontaneous respiration under sedated sleep. The results indicated that both obese Yucatan and Panepinto minipigs presented spontaneous OSA, but not in three nonobese Yucatan minipigs. During inspiration, the tongue base showed elongation in both dorsal and ventral regions but thinning and thickening in the anterior and posterior regions, respectively. The widths showed opposite directions, widening in the dorsal but narrowing in the ventral regions. The soft palate expanded in both length and width. Compared to normal controls, obese/OSA ones showed similar directions of deformational changes, but the magnitude of change was two times larger in the tongue base and soft palate, and obese/OSA Panepinto minipigs presented 10 times larger changes in all dimensions of both the tongue base and the soft palate. The distance changes between the dorsal surface of tongue base and soft palate during inspiration increased in normal but decreased in obese OSA minipigs., (© 2024 Wiley Periodicals LLC.)
- Published
- 2024
- Full Text
- View/download PDF
14. Deep learning system for malignancy risk prediction in cystic renal lesions: a multicenter study.
- Author
-
He QH, Feng JJ, Wu LC, Wang Y, Zhang X, Jiang Q, Zeng QY, Yin SW, He WY, Lv FJ, and Xiao MZ
- Abstract
Objectives: To develop an interactive, non-invasive artificial intelligence (AI) system for malignancy risk prediction in cystic renal lesions (CRLs)., Methods: In this retrospective, multicenter diagnostic study, we evaluated 715 patients. An interactive geodesic-based 3D segmentation model was created for CRLs segmentation. A CRLs classification model was developed using spatial encoder temporal decoder (SETD) architecture. The classification model combines a 3D-ResNet50 network for extracting spatial features and a gated recurrent unit (GRU) network for decoding temporal features from multi-phase CT images. We assessed the segmentation model using sensitivity (SEN), specificity (SPE), intersection over union (IOU), and dice similarity (Dice) metrics. The classification model's performance was evaluated using the area under the receiver operator characteristic curve (AUC), accuracy score (ACC), and decision curve analysis (DCA)., Results: From 2012 to 2023, we included 477 CRLs (median age, 57 [IQR: 48-65]; 173 men) in the training cohort, 226 CRLs (median age, 60 [IQR: 52-69]; 77 men) in the validation cohort, and 239 CRLs (median age, 59 [IQR: 53-69]; 95 men) in the testing cohort (external validation cohort 1, cohort 2, and cohort 3). The segmentation model and SETD classifier exhibited excellent performance in both validation (AUC = 0.973, ACC = 0.916, Dice = 0.847, IOU = 0.743, SEN = 0.840, SPE = 1.000) and testing datasets (AUC = 0.998, ACC = 0.988, Dice = 0.861, IOU = 0.762, SEN = 0.876, SPE = 1.000)., Conclusion: The AI system demonstrated excellent benign-malignant discriminatory ability across both validation and testing datasets and illustrated improved clinical decision-making utility., Critical Relevance Statement: In this era when incidental CRLs are prevalent, this interactive, non-invasive AI system will facilitate accurate diagnosis of CRLs, reducing excessive follow-up and overtreatment., Key Points: The rising prevalence of CRLs necessitates better malignancy prediction strategies. The AI system demonstrated excellent diagnostic performance in identifying malignant CRL. The AI system illustrated improved clinical decision-making utility., (© 2024. The Author(s).)
- Published
- 2024
- Full Text
- View/download PDF
15. Prognostic Impact of Left Atrial Appendage Patency After Device Closure.
- Author
-
Chen M, Yao PC, Fei ZT, Wang QS, Yu YC, Zhang PP, Li W, Zhang R, Mo BF, Zhao MZ, Yu Y, Yang M, Zhao Y, Gong CQ, Sun J, and Li YG
- Subjects
- Humans, Male, Female, Aged, Prospective Studies, Risk Factors, Time Factors, Treatment Outcome, Aged, 80 and over, Middle Aged, Risk Assessment, Hemorrhage, Prosthesis Design, Atrial Appendage physiopathology, Atrial Appendage diagnostic imaging, Atrial Fibrillation physiopathology, Atrial Fibrillation mortality, Atrial Fibrillation diagnosis, Atrial Fibrillation therapy, Atrial Fibrillation diagnostic imaging, Ischemic Attack, Transient etiology, Stroke etiology, Stroke mortality, Computed Tomography Angiography, Cardiac Catheterization adverse effects, Cardiac Catheterization instrumentation
- Abstract
Background: The prognostic impact of left atrial appendage (LAA) patency, including those with and without visible peri-device leak (PDL), post-LAA closure in patients with atrial fibrillation, remains elusive., Methods: Patients with atrial fibrillation implanted with the WATCHMAN 2.5 device were prospectively enrolled. The device surveillance by cardiac computed tomography angiography was performed at 3 months post-procedure. Adverse events, including stroke/transient ischemic attack (TIA), major bleeding, cardiovascular death, all-cause death, and the combined major adverse events (MAEs), were compared between patients with complete closure and LAA patency., Results: Among 519 patients with cardiac computed tomography angiography surveillance at 3 months post-LAA closure, 271 (52.2%) showed complete closure, and LAA patency was detected in 248 (47.8%) patients, including 196 (37.8%) with visible PDL and 52 (10.0%) without visible PDL. During a median of 1193 (787-1543) days follow-up, the presence of LAA patency was associated with increased risks of stroke/TIA (adjusted hazard ratio for baseline differences, 3.22 [95% CI, 1.17-8.83]; P =0.023) and MAEs (adjusted hazard ratio, 1.12 [95% CI, 1.06-1.17]; P =0.003). Specifically, LAA patency with visible PDL was associated with increased risks of stroke/TIA (hazard ratio, 3.66 [95% CI, 1.29-10.42]; P =0.015) and MAEs (hazard ratio, 3.71 [95% CI, 1.71-8.07]; P =0.001), although LAA patency without visible PDL showed higher risks of MAEs (hazard ratio, 3.59 [95% CI, 1.28-10.09]; P =0.015). Incidences of stroke/TIA (2.8% versus 3.0% versus 6.7% versus 22.2%; P =0.010), cardiovascular death (0.9% versus 0% versus 1.7% versus 11.1%; P =0.005), and MAEs (4.6% versus 9.0% versus 11.7% versus 22.2%; P =0.017) increased with larger PDL (0, >0 to ≤3, >3 to ≤5, or >5 mm). Older age and discontinuing antiplatelet therapy at 6 months were independent predictors of stroke/TIA and MAEs in patients with LAA patency., Conclusions: LAA patency detected by cardiac computed tomography angiography at 3 months post-LAA closure is associated with unfavorable prognosis in patients with atrial fibrillation implanted with WATCHMAN 2.5 device., Registration: URL: https://www.clinicaltrials.gov; Unique identifier: NCT03788941., Competing Interests: Disclosures None.
- Published
- 2024
- Full Text
- View/download PDF
16. The promoting effects of Grin2d expression in tumorigenesis and the aggressiveness of esophageal cancer.
- Author
-
Wang LL, Li J, Xue H, Zhang L, Yu DY, Yang N, Yun WJ, Zhao MZ, and Zheng HC
- Subjects
- Humans, Male, Female, Middle Aged, Carcinogenesis genetics, Aged, Gene Expression Regulation, Neoplastic, Signal Transduction, Cell Proliferation, Esophageal Neoplasms pathology, Esophageal Neoplasms genetics, Esophageal Neoplasms metabolism, Receptors, N-Methyl-D-Aspartate metabolism, Receptors, N-Methyl-D-Aspartate genetics
- Abstract
Grin2d is an ionotropic NMDA receptor, a subunit of glutamate-dependent, and a facilitator of cellular calcium influx in neuronal tissue. In this study, we found that Grin2d expression was higher in esophageal cancer than in normal mucosa at both the mRNA and protein level using RT-PCR, bioinformatics analysis, and western blotting (p<0.05). Grin2d mRNA expression was positively correlated with old age, white race, heavy weight, distal location, adenocarcinoma, cancer with Barrett's lesion, or high-grade columnar dysplasia (p<0.05). The differential genes associated with Grin2d mRNA were involved in fat digestion and absorption, cholesterol metabolism, lipid transfer, lipoproteins, synaptic membranes, and ABC transporters (p<0.05). The Grin2d-related genes were classified into the following categories: metabolism of glycerolipids, galactose, and O-glycan, cell adhesion binding, actin binding, cadherin binding, the Hippo signaling pathway, cell-cell junctions, desmosomes, DNA-transcription activator binding, and skin development and differentiation (p<0.05). Grin2d immunoreactivity was positively correlated with distal metastasis and unfavorable overall survival in esophageal cancer (p<0.05). Grin2d overexpression promoted proliferation, migration, and invasion in esophageal cancer cells but blocked apoptosis (p<0.05) and increased the expression of PI3K, Akt and p-mTOR. Grin2d knockout caused the opposite effects. These findings indicated that upregulated Grin2d expression played an important role in esophageal carcinogenesis via the PI3K/Akt/mTOR pathway and might be a biological marker for aggressive tumor behavior and poor prognosis. Its silencing might represent a targeted therapy approach against esophageal cancer., (©The Author(s) 2024. Open Access. This article is licensed under a Creative Commons CC-BY International License.)
- Published
- 2024
- Full Text
- View/download PDF
17. Effects of temporal changes in resting heart rate on future diabetes-related outcomes.
- Author
-
Gao L, Wang GH, Wan G, Liu Q, Qin MZ, Fang F, Cui XL, Li YL, Sun F, Zhang XL, Fu HJ, and Yuan SY
- Subjects
- Humans, Male, Female, Middle Aged, Follow-Up Studies, Aged, Prognosis, Cardiovascular Diseases epidemiology, Cardiovascular Diseases physiopathology, Rest physiology, Adult, Risk Factors, Time Factors, Heart Rate physiology, Diabetes Mellitus, Type 2 physiopathology
- Abstract
Background and Aims: Most studies have analyzed the relationship between resting heart rate (RHR) measured at only one time point and future clinical events. The current study aims to investigate the impact of long-term RHR changes on future clinical outcomes in a decade-long cohort with type 2 diabetes mellitus (T2DM)., Methods: The two-staged follow-up involved 2,513 T2DM participants. The first stage (2008-2014) intended to identify levels and trends in RHR changes, while the second stage (2014-2018) attempted to collect new occurrence records of clinical results. Cox proportional hazards models were applied to predict hazard ratios (HRs), along with 95% confidence interval (CI) for the correlation between RHR changes and future events., Results: There is no significant correlation between baseline RHR levels and long-term clinical events. According to the range of RHR change, compared with the stable RHR group, the adjusted HRs for cardiovascular events and all-cause death in the large increase group were 3.40 (95% CI: 1.33-8.71, p=0.010) and 3.22 (95% CI: 1.07-9.64, p=0.037), respectively. While the adjusted HRs for all-cause death and major adverse cardiac and cerebrovascular events (MACCE) in the moderate decrease group were 0.55 (95% CI: 0.31-0.96, p=0.037) and 0.51 (95% CI: 0.26-0.98, p=0.046). According to the trend of RHR, compared with the normal-normal group, the adjusted HRs for composite endpoint events and cerebrovascular events in the normal-high group were 1.64 (95% CI: 1.00-2.68, p=0.047) and 2.82 (95% CI: 1.03-7.76, p=0.043), respectively., Conclusion: Changes in RHR had predictive value for long-term clinical events in diabetic populations. Individuals with significantly elevated RHR over a particular period of time showed an increased risk of adverse events., Competing Interests: The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest., (Copyright © 2024 Gao, Wang, Wan, Liu, Qin, Fang, Cui, Li, Sun, Zhang, Fu and Yuan.)
- Published
- 2024
- Full Text
- View/download PDF
18. Roxadustat protects rat renal tubular epithelial cells from hypoxia-induced injury through the TGF-β1/Smad3 signaling pathway.
- Author
-
Zheng FF, Zhao YY, Cai LJ, Wu G, Wang JN, and Zhao MZ
- Subjects
- Rats, Animals, Hypoxia metabolism, Signal Transduction, Collagen Type I metabolism, Epithelial Cells metabolism, RNA, Small Interfering metabolism, Transforming Growth Factor beta1 metabolism, Kidney Diseases metabolism
- Abstract
Objective: Roxadustat is used to treat renal anemia. The renoprotective effect of roxadustat needs to be further confirmed, and the mechanism of action is unknown. This study aims to evaluate the effect and mechanism of roxadustat in hypoxia-related nephropathy with the renal tubular epithelial cell line NRK-52E., Materials and Methods: The cell Counting Kit-8 (CCK-8) assay was employed to assess cellular proliferation in the current investigation. Flow cytometry was used to conduct cell apoptosis analysis. The utilization of electron microscopy facilitated the identification of changes in cellular ultrastructure. Immunofluorescence was used to detect the expression trend of hypoxia-inducible factor-1α (HIF-1α). The connective tissue growth factor (CTGF), transforming growth factor-β1 (TGF-β1), Smad family member 3 (Smad3), p-Smad3, α-smooth muscle actin (α-SMA), collagen I, and HIF-1α were assessed by western blotting. Real-time fluorescent quantitative PCR (RT-qPCR) was used to measure TGF-β1 and Smad3 mRNA., Results: Significant growth inhibition and increased apoptosis were observed in NRK-52E cells cultured under hypoxic conditions (1% and 5% O2), which can be rescued by roxadustat. From a morphological perspective, it has been observed that roxadustat can counteract cellular damage features produced by hypoxia. These features include the contraction of the nuclear envelope and an increase in the formation of apoptotic bodies. Roxadustat increases HIF-1α expression acutely at 24 h, followed by a gradual reduction of HIF-1α expression to levels significantly below that of the hypoxia group by 72 h. Roxadustat can also inhibit hypoxia-induced increased expression of CTGF, TGF-β1, p-Smad3, α-SMA, collagen I, and HIF-1α. Combined treatment with roxadustat and siRNA against TGF-β1 synergistically reduced the expression of CTGF and HIF-1α, while the effect on TGF-β1 and p-Smad3 were comparable to that of the individual treatment alone. Comparably, the combined administration of roxadustat and siRNA targeting Smad3 had a synergistic impact on diminishing the expression of CTGF., Conclusions: These findings indicate that roxadustat attenuates experimental renal fibrosis likely by inhibiting the TGF-β1/Smad3 pathways, while its effect on CTGF and HIF-1α may involve other signaling pathways.
- Published
- 2023
- Full Text
- View/download PDF
19. Respiratory internal kinematics of the tongue base and soft palate in obese minipigs with obstructive sleep apnea.
- Author
-
Liu ZJ, Yang M, Deng MZ, Abdelfattah MY, Baldwin M, and Weaver E
- Abstract
It is largely unknown how the tongue base and soft palate deform to alter the configuration of the oropharyngeal airway during respiration. This study is to address this important gap. After live sleep monitoring of 5 Yucatan and 2 Panepinto minipigs to verify obstructive sleep apnea (OSA), 8 and 4 ultrasonic crystals were implanted into the tongue base and soft palate to circumscribe a cubic and square region, respectively. The 3D and 2D dimensional changes of the circumscribed regions were measured simultaneously with electromyographic activity (EMG) of the oropharyngeal muscles during spontaneous respiration under sedated sleep. The results indicated that both obese Yucatan and Panepinto minipigs presented spontaneous OSA, but not in 3 non-obese Yucatan minipigs. During inspiration, the tongue base showed elongation in both dorsal and ventral regions but thinning and thickening in the anterior and posterior regions respectively. The widths showed opposite directions, widening in the dorsal but narrowing in the ventral regions. The soft palate expanded in both length and width. Compared to normal controls, obese/OSA ones showed similar directions of dimensional changes, but the magnitude of change was two times larger in the tongue base and soft palate, and obese/OSA Panepinto minipigs presented 10 times larger changes in all dimensions of both the tongue base and the soft palate. The opposite direction of the respiratory spatial relationship between these two structures was seen in obese/OSA as compared to normal minipigs., Competing Interests: Conflict of interest The authors declare no conflicts of interest with the content of this article. The authors have no competing interests or other interests that might be perceived to influence the results and/or discussion reported in this paper.
- Published
- 2023
- Full Text
- View/download PDF
20. The correlation between gut microbiome and atrial fibrillation: pathophysiology and therapeutic perspectives.
- Author
-
Li N, Wang L, Li L, Yang MZ, Wang QX, Bai XW, Gao F, Yuan YQ, Yu ZJ, and Ren ZG
- Subjects
- Humans, Gastrointestinal Microbiome physiology, Atrial Fibrillation therapy, Microbiota
- Abstract
Regulation of gut microbiota and its impact on human health is the theme of intensive research. The incidence and prevalence of atrial fibrillation (AF) are continuously escalating as the global population ages and chronic disease survival rates increase; however, the mechanisms are not entirely clarified. It is gaining awareness that alterations in the assembly, structure, and dynamics of gut microbiota are intimately engaged in the AF progression. Owing to advancements in next-generation sequencing technologies and computational strategies, researchers can explore novel linkages with the genomes, transcriptomes, proteomes, and metabolomes through parallel meta-omics approaches, rendering a panoramic view of the culture-independent microbial investigation. In this review, we summarized the evidence for a bidirectional correlation between AF and the gut microbiome. Furthermore, we proposed the concept of "gut-immune-heart" axis and addressed the direct and indirect causal roots between the gut microbiome and AF. The intricate relationship was unveiled to generate innovative microbiota-based preventive and therapeutic interventions, which shed light on a definite direction for future experiments., (© 2023. The Author(s).)
- Published
- 2023
- Full Text
- View/download PDF
21. New species of the tribe Sericini Kirby, 1837 from China, with further updates on their taxonomy and distribution (Coleoptera: Scarabaeidae: Sericinae).
- Author
-
Zhao MZ and Ahrens D
- Subjects
- Animals, China, Coleoptera
- Abstract
Fifteen new species of Sericini are described from China, including Gastroserica (s. str.) mayunshui Zhao & Ahrens, new species, Pachyserica albopunctata Zhao & Ahrens, new species, P. dongnanensis Zhao & Ahrens, new species, P. jianfengensis Zhao & Ahrens, new species, Serica (s. l.) caiyiyiae Zhao & Ahrens, new species, S. (s. l.) babaoshanensis Zhao & Ahrens, new species, S. (s. l.) jicaiyanae Zhao & Ahrens, new species, S. (s. l.) zhangyaonani Zhao & Ahrens, new species, S. (s. l.) longidentata Zhao & Ahrens, new species, S. (s. l.) callosericoides Zhao & Ahrens, new species, S. (Taiwanoserica) liboyani Zhao & Ahrens, new species, S. (T.) yangzaichuni Zhao & Ahrens, new species, Maladera zhanchaoi Zhao & Ahrens, new species M. parabikouensis Zhao & Ahrens, new species and M. shikengkongensis Zhao & Ahrens, new species. Maladera juxianensis Ahrens, Fabrizi & Liu, 2021 was recognized as a junior synonym of M. aureola (Murayama, 1938). Additional collecting data for 32 other sericine species is presented.
- Published
- 2023
- Full Text
- View/download PDF
22. FAM64A aggravates proliferation, invasion, lipid droplet formation, and chemoresistance in gastric cancer: A biomarker for aggressiveness and a gene therapy target.
- Author
-
Yun WJ, Zhang L, Yang N, Cui ZG, Jiang HM, Ha MW, Yu DY, Zhao MZ, and Zheng HC
- Subjects
- Humans, Drug Resistance, Neoplasm genetics, Lipid Droplets metabolism, Lipid Droplets pathology, Gene Expression Regulation, Neoplastic, Biomarkers, Cell Proliferation genetics, RNA, Messenger, Genetic Therapy, Cell Line, Tumor, Cell Movement, Prognosis, Stomach Neoplasms drug therapy, Stomach Neoplasms genetics
- Abstract
FAM64A is a mitogen-induced regulator of the metaphase and anaphase transition. Here, we found that FAM64A messenger RNA (mRNA) and protein expression levels were higher in gastric cancer tissue than in normal mucosa (p < .05). FAM64A methylation was negatively correlated with FAM64A mRNA expression (p < .05). The differentially expressed genes of FAM64A were mainly involved in digestion, potassium transporting or exchanging ATPase, contractile fibers, endopeptidase, and pancreatic secretion (p < .05). The FAM64A-related genes were principally categorized into ubiquitin-mediated proteolysis, cell cycle, chromosome segregation and mitosis, microtubule binding and organization, metabolism of amino acids, cytokine receptors, lipid droplet, central nervous system, and collagen trimer (p < .05). FAM64A protein expression was lower in normal gastric mucosa than intestinal metaplasia, adenoma, and primary cancer (p < .05), negatively correlated with older age, T stage, lymphatic and venous invasion, tumor, node, metastasis stage, and dedifferentiation (p < .05), and associated with a favorable overall survival of gastric cancer patients. FAM64A overexpression promoted proliferation, antiapoptosis, migration, invasion, and epithelial-mesenchymal transition via the EGFR/Akt/mTOR/NF-κB, while the opposite effect was observed for FAM64A knockdown. FAM64A also induced chemoresistance directly or indirectly through lipid droplet formation via ING5. These results suggested that upregulation of FAM64A expression might induce aggressive phenotypes, leading to gastric carcinogenesis and its subsequent progression. Thus, FAM64A could be regarded as a prognosis biomarker and a target for gene therapy., (© 2023 The Authors. Drug Development Research published by Wiley Periodicals LLC.)
- Published
- 2023
- Full Text
- View/download PDF
23. Hepatopathy of Mauriac syndrome. The importance of therapeutic adherence.
- Author
-
Moreno Tirado A, González Lázaro P, Montero Benítez MZ, and Jiménez Torrecilla P
- Subjects
- Adolescent, Adult, Child, Humans, Hepatomegaly etiology, Treatment Adherence and Compliance, Biopsy, Glycogen, Obesity, Liver Diseases etiology
- Abstract
The Pierre Mauriac syndrome described in the year 1930, is characterized by growth failure, cushingoid appearance, hepatomegaly and hypertransaminasemia, in a patient with chronic uncontrolled DM1. The most common age of presentation is usually in adolescence, although cases have been described in both children and adults. The hallmark of this syndrome is extreme liver enlargement from massive acucumulation of glycogen. The diagnosis of hepatopathy requires high clinical suspicion and the presence of glycogen accumulation must be corroborated with a liver biopsy. The accumulation of glycogen in hepatocytes is partly caused by long periods of hyperglycemia, in which glucose enters the hepatocyte independently of insulin and is converted to glycogen. Mauriac syndrome is currently a rare cause of liver disease, due to improvements in control and treatment of patients with DM1. However, some cases are described in people with complicated social situations or without therapeutic compliance. This is a reversible condition after improvement in glycemic control with adequate insulinization. For this reason, we believe it convenient to suspect this clinical picture in patients with poor glycemic control and symptoms of pain and abdominal distension.
- Published
- 2023
- Full Text
- View/download PDF
24. [Oral health and hygiene behavior in chronic renal failure patients].
- Author
-
Xie T, Deng MZ, Kang J, Chen K, Yao JF, and Cang-Shang Z
- Subjects
- Humans, Oral Health, Renal Dialysis adverse effects, Hygiene, Kidney Failure, Chronic diagnosis, Kidney Failure, Chronic therapy, Kidney Failure, Chronic complications, Mouth Diseases
- Abstract
Purpose: To investigate the oral health and hygiene behavior of chronic renal failure(CRF) patients in Shenzhen, so as to provide basis for formulating education for them., Methods: The history of renal failure, oral health status and oral health care behavior of 336 patients with chronic renal failure(CRF) in the hemodialysis center of Shenzhen Second People's Hospital were investigated by questionnaire and oral examinations., Results: At an average, dialysis was required for 3.2 years. The main cause of renal failure was glomerulonephritis in 49.11% of patients, hypertensive kidney lesion in 19.35% and diabetic nephropathy in 15.77% of patients; 77.8% of them kept brushing teeth two or more than two times every day; 72.9% patients suffered from oral problems such as toothache in recent 12 months. The rate of visiting a dentist when having complaints was 21.7%., Conclusions: The state of oral health of CRF is worse than the general population of comparable age in China, while their hygiene behavior is better than the corresponding reference general population. However, their consciousness of dental treatment is poor. Therefore, health education for CRF patients should include knowledge about oral diseases complicated with CRF and correct medical philosophy.
- Published
- 2023
25. Cost-effectiveness of cytomegalovirus vaccination for females in China: A decision-analytical Markov study.
- Author
-
Yin MZ, Gu YY, Shu JT, Zhang B, Su M, Zhang LP, Jiang YH, and Qin G
- Subjects
- Infant, Female, Adolescent, Young Adult, Humans, Child, Adult, Cost-Benefit Analysis, Vaccination methods, China, Cytomegalovirus, Cytomegalovirus Infections prevention & control
- Abstract
Background: The global burden of disease caused by congenital cytomegalovirus (CMV) infection is high. Previous modeling studies have suggested that CMV vaccination may be cost-effective in developed countries. Congenital CMV infection is more likely driven by maternal non-primary infection in China. We aimed to measure the effectiveness and cost-effectiveness of population-level CMV vaccination in Chinese females., Methods: A decision tree Markov model was developed to simulate potential CMV vaccination strategies in a multi-cohort setting, with a population size of 1,000,000 each for the infant, adolescent (10-year-old) and young adult (20-year-old) cohorts. The hypothetical vaccines were assumed to have 50% efficacy, 20 years of protection, 70% coverage, at a price of US$120/dose for base-case analysis. Costs and disability-adjusted life years (DALYs) were discounted by 3% per year and the vaccination would be considered cost-effective if an incremental cost-effectiveness ratio (ICER) was lower than 2021 Chinese per capita GDP (US$12,500)., Findings: For the pre-infection (PRI) vaccine efficacy type, the adolescent strategy was the most cost-effective, with an ICER of US$12,213 (12,134 to 12,291) pre DALY averted, compared with the next best strategy (young adult strategy). For pre- and post-infection (P&PI) efficacy type, the young adult strategy was the most cost-effective as it was cost-saving. In one-way analysis varying the PRI vaccine price, the infant strategy, adolescent strategy and the young adult strategy would be a dominant strategy over others if the vaccine cost ≤US$60, US$61-121 and US$122-251 per dose respectively. In contrast, the young adult strategy continued to be the preferred strategy until the P&PI vaccine price exceeded US$226/dose. Our main results were robust under a wide variety of sensitivity analyses and scenario analyses., Interpretation: CMV vaccination for females would be cost-effective and even cost-saving in China. Our findings had public health implications for control of CMV diseases., Competing Interests: Declaration of Competing Interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2023 Elsevier Ltd. All rights reserved.)
- Published
- 2023
- Full Text
- View/download PDF
26. Effects of early mental state changes on physical functions in elderly patients with a history of falls.
- Author
-
Cui Y, Liu B, Qin MZ, Liu Q, Ye H, and Zhou J
- Subjects
- Aged, Male, Humans, Patients, Anxiety diagnosis, Anxiety Disorders, Accidental Falls prevention & control, Fear
- Abstract
Background: Fear of falling is a potential consequence for older adults who have experienced a fall. Whether such psychological concerns related to falls, in turn, affect physical function? Especially those who have a history of falling but have not been diagnosed with anxiety, depression, or both. This study aimed to clarify the effects of early psychological changes on the physical function of older patients., Methods: The 111 participants with falling history were divided into the poor physical function (PPF) group with the Short Physical Performance Battery (SPPB) ≤ 9 and the good physical function (GPF) group with SPPB > 9. Their physical function was assessed through 4-m gait speed (4MGS), five times sit-to-stand test (FTSST), grip strength, and Timed Up and Go tests TUGT. Their mental state was assessed by the self-rating anxiety/depression scale (SAS/SDS)., Results: (1) SAS/SDS scores were negatively correlated with the SPPB score, gait speed, and maximum grip strength (males). (2) Multivariate logistic regression analysis showed that the SPPB score was subject to such independent influence factors: cerebrovascular disease (OR = 11.805; P = 0.005), normal ratio of grip strength (OR = 0.046; P = 0.016), TUGT (OR = 1.717; P < 0.001), and SDS score (OR = 1.154; P = 0.008). (3) The area under the ROC curve was 0.699 (0.601, 0.797) for SAS score, with a sensitivity of 0.776 and a specificity of 0.547; the AUC was 0.694 (0.596, 0.792) for SDS score, with a sensitivity of 0.586 and a specificity of 0.755., Conclusions: In older adults with a history of falls without a diagnosis of anxiety or depression, higher SAS/SDS scores were associated with worse fall-related physical function, and there was a statistically significant correlation between the two. This may indicate a risk of falling again in the future., (© 2023. BioMed Central Ltd., part of Springer Nature.)
- Published
- 2023
- Full Text
- View/download PDF
27. Clinical evidence of three traditional Chinese medicine drugs and three herbal formulas for COVID-19: A systematic review and meta-analysis of the Chinese population.
- Author
-
You LZ, Dai QQ, Zhong XY, Yu DD, Cui HR, Kong YF, Zhao MZ, Zhang XY, Xu QQ, Guan ZY, Wei XX, Zhang XC, Han SJ, Liu WJ, Chen Z, Zhang XY, Zhao C, Jin YH, and Shang HC
- Subjects
- Humans, Asian People, Cough etiology, Fever etiology, Randomized Controlled Trials as Topic, COVID-19 complications, COVID-19 therapy, Medicine, Chinese Traditional methods, Drugs, Chinese Herbal therapeutic use, COVID-19 Drug Treatment methods
- Abstract
Background: The coronavirus disease 2019 (COVID-19) continues to spread worldwide. Integrated Chinese and Western medicine have had some successes in treating COVID-19., Objective: This study aims to evaluate the efficacy and safety of three traditional Chinese medicine drugs and three herbal formulas (3-drugs-3-formulas) in patients with COVID-19., Search Strategy: Relevant studies were identified from 12 electronic databases searched from their establishment to April 7, 2022., Inclusion Criteria: Randomized controlled trials (RCTs), non-RCTs and cohort studies that evaluated the effects of 3-drugs-3-formulas for COVID-19. The treatment group was treated with one of the 3-drugs-3-formulas plus conventional treatment. The control group was treated with conventional treatment., Data Extraction and Analysis: Two evaluators screened and selected literature independently, then extracted basic information and assessed risk of bias. The treatment outcome measures were duration of main symptoms, hospitalization time, aggravation rate and mortality. RevMan 5.4 was used to analyze the pooled results reported as mean difference (MD) with 95% confidence interval (CI) for continuous data and risk ratio (RR) with 95% CI for dichotomous data., Results: Forty-one studies with a total of 13,260 participants were identified. Our analysis suggests that compared with conventional treatment, the combination of 3-drugs-3-formulas might shorten duration of fever (MD = -1.39; 95% CI: -2.19 to -0.59; P < 0.05), cough (MD = -1.57; 95% CI: -2.16 to -0.98; P < 0.05) and fatigue (MD = -1.36; 95% CI: -2.21 to -0.51; P < 0.05), decrease length of hospital stay (MD = -2.62; 95% CI -3.52 to -1.72; P < 0.05), the time for nucleic acid conversion (MD = -2.92; 95% CI: -4.26 to -1.59; P < 0.05), aggravation rate (RR = 0.49; 95% CI: 0.38 to 0.64; P < 0.05) and mortality (RR = 0.34; 95% CI: 0.19 to 0.62; P < 0.05), and increase the recovery rate of chest computerized tomography manifestations (RR = 1.22; 95% CI: 1.14 to 1.3; P < 0.05) and total effectiveness (RR = 1.24; 95% CI: 1.09 to 1.42; P < 0.05)., Conclusion: The 3-drugs-3-formulas can play an active role in treating all stages of COVID-19. No severe adverse events related to 3-drugs-3-formulas were observed. Hence, 3-drugs-3-formulas combined with conventional therapies have effective therapeutic value for COVID-19 patients. Further long-term high-quality studies are essential to demonstrate the clinical benefits of each formula. Please cite this article as: You LZ, Dai QQ, Zhong XY, Yu DD, Cui HR, Kong YF, Zhao MZ, Zhang XY, Xu QQ, Guan ZY, Wei XX, Zhang XC, Han SJ, Liu WJ, Chen Z, Zhang XY, Zhao C, Jin YH, Shang HC. Clinical evidence of three traditional Chinese medicine drugs and three herbal formulas for COVID-19: A systematic review and meta-analysis of the Chinese population. J Integr Med. 2023; 21(5): 441-454., Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2023 Shanghai Changhai Hospital. Published by Elsevier B.V. All rights reserved.)
- Published
- 2023
- Full Text
- View/download PDF
28. Long-term exposure to arsenic in drinking water leads to myocardial damage by oxidative stress and reduction in NO.
- Author
-
Cui YX, Dong L, Zhang M, Liu YN, Chen YH, Jia MZ, Chen KP, Wang H, Shi YW, Ma TY, and Chen JH
- Subjects
- Rats, Animals, Oxidative Stress, Sodium Compounds toxicity, Arsenic toxicity, Drinking Water, Arsenites toxicity
- Abstract
Chronic arsenic exposure causes myocardial damage. The aim of this study is to investigate if oxidative stress and reduction in NO is involved in the myocardial damage induced by arsenic in drinking water. Rats were divided into a control group and different doses of sodium arsenite. With increasing sodium arsenite concentrations in drinking water, localised inflammatory foci and necrotic myocardial tissues were gradually observed. Compared to the control group, the activities and gene expression of antioxidant enzymes in arsenic-exposed rats decreased. NO content and the NOS activity as well as the expression of NOS mRNA in the myocardial tissue of exposed rats, decreased, and the extracellular NO content of cardiomyocytes treated with sodium arsenite also decreased. The rate of cell apoptosis induced by sodium arsenite decreased after treatment with sodium nitroprusside (an NO donor). In conclusion, arsenic exposure in drinking water can lead to myocardial injury and cardiomyocyte apoptosis through oxidative stress and a reduction in NO content., Competing Interests: Declaration of Competing Interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2023 Elsevier B.V. All rights reserved.)
- Published
- 2023
- Full Text
- View/download PDF
29. Trends in the distribution of socioeconomic inequalities in smoking and cessation: evidence among adults aged 18 ~ 59 from China Family Panel Studies data.
- Author
-
Huang MZ, Liu TY, Zhang ZM, Song F, and Chen T
- Subjects
- Male, Adult, Humans, Female, Socioeconomic Factors, Cross-Sectional Studies, Prevalence, China epidemiology, Health Behavior, Cigarette Smoking
- Abstract
Introduction: Cigarette smoking is usually more prevalent among those with a lower socioeconomic status (SES), which can be driven by inequalities in the initiation and cessation of smoking, giving rise to SES disparities in health. This study aimed to gauge the SES inequalities in smoking related behaviours and their evolving trends based on a nationally representative database., Method: Data were extracted from repeated cross-sectional China Family Panel Studies (CFPS) of adults aged ≥18 and <60 years in 2012, 2014, 2016 and 2018. SES was constructed by principal component analysis based on income, education and occupation. Regression-based odds ratios and coefficients as the relative effect index of inequality were applied to quantify the degree of socioeconomic inequality in smoking related behaviours and to adjust for possible confounding factors. Multivariable regressions were utilized to explore the temporal trends in smoking inequalities., Results: The smoking prevalence among men decreased from 61.16% to 2012 to 57.88% in 2018, cigarette consumption among current smokers declined from 16.71 to 15.49 cigs/per day, and the cessation rate increased from 17.55% to 24.08%. Cigarette consumption for women decreased from 13.39 in 2012 to 11.01 cigs/per day in 2018. Smoking prevalence showed significant SES inequalities among men and women from 2012 to 2018 (men: OR
2012 (95%CI)= 0.72 (0.63, 0.83), OR2014 = 0.60 (0.52, 0.69), OR2016 = 0.58 (0.50, 0.67), OR2018 = 0.56 (0.48, 0.66); women: OR2012 = 0.63 (0.41, 0.97), OR2014 = 0.50 (0.32, 0.79), OR2016 = 0.44 (0.26, 0.73), OR2018 = 0.50 (0.30, 0.85)). Cigarette consumption showed significant SES inequalities among men from 2012 to 2018 (β2012 =-1.39 (-2.22, -0.57), β2014 =-2.37 (-3.23, -1.50), β2016 =-2.35 (-3.25, -1.44), β2018 =-2.91 (-3.86, -1.97)). In 2018, inequality emerged in smoking cessation rates among men and smoking intensity among women. However, all tests for trends in changes over time were not statistically significant (P varied from 0.072 to 0.602)., Conclusion: The smoking prevalence declined between 2012 and 2018 in China. However, SES inequalities in smoking persist, while socioeconomic inequalities in smoking were not alleviated among adults aged 18 ~ 59 in China. Tobacco control measures should be implemented by giving more attention to people with lower SES who are more vulnerable to tobacco use., (© 2023. The Author(s).)- Published
- 2023
- Full Text
- View/download PDF
30. In vivo cadmium-assisted dilute acid pretreatment of the phytoremediation sweet sorghum for enzymatic hydrolysis and cadmium enrichment.
- Author
-
Xiao MZ, Hong S, Shen X, Du ZY, and Yuan TQ
- Subjects
- Biodegradation, Environmental, Hydrolysis, Soil, Biomass, Cadmium metabolism, Sorghum chemistry
- Abstract
Phytoremediation with energy crops is considered an integrated technology that provides both environment and energy benefits. Herein, the sweet sorghum cultivated on Cd-contaminated farmland (1.21 mg/kg of Cd in the soil) showed promising phytoremediation potential, and the approach for utilizing sorghum stalks was explored. Sweet sorghum bagasse with Cd contamination was pretreated with dilute acid in order to improve enzymatic saccharification and achieve Cd recovery, resulting in harmless and value-added utilization. After pretreatment, hemicelluloses were dramatically degraded, and the lignocellulosic structures were partially deconstructed with xylan removal up to 98.1%. Under the optimal condition (0.75% H
2 SO4 ), the highest total sugar yield was 0.48 g/g of raw bagasse; and nearly 98% of Cd was enriched in the liquid phase. Compared with normal biomass, Cd reduced the biomass recalcitrance and further facilitated the deconstruction of biomass under super dilute acid conditions. This work provided an example for the subsequent valorization of Cd-containing biomass and Cd recovery, which will greatly facilitate the development of phytoremediation of heavy metal contaminated soil., Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2023 Elsevier Ltd. All rights reserved.)- Published
- 2023
- Full Text
- View/download PDF
31. Machine Learning-Based Prognostic Model for Patients After Lung Transplantation.
- Author
-
Tian D, Yan HJ, Huang H, Zuo YJ, Liu MZ, Zhao J, Wu B, Shi LZ, and Chen JY
- Subjects
- Female, Humans, Male, Middle Aged, Prognosis, Retrospective Studies, Adult, Aged, Lung Transplantation, Machine Learning
- Abstract
Importance: Although numerous prognostic factors have been found for patients after lung transplantation (LTx) over the years, an accurate prognostic tool for LTx recipients remains unavailable., Objective: To develop and validate a prognostic model for predicting overall survival in patients after LTx using random survival forests (RSF), a machine learning algorithm., Design, Setting, and Participants: This retrospective prognostic study included patients who underwent LTx between January 2017 and December 2020. The LTx recipients were randomly assigned to training and test sets in accordance with a ratio of 7:3. Feature selection was performed using variable importance with bootstrapping resampling. The prognostic model was fitted using the RSF algorithm, and a Cox regression model was set as a benchmark. The integrated area under the curve (iAUC) and integrated Brier score (iBS) were applied to assess model performance in the test set. Data were analyzed from January 2017 to December 2019., Main Outcomes and Measures: Overall survival in patients after LTx., Results: A total of 504 patients were eligible for this study, consisting of 353 patients in the training set (mean [SD] age, 55.03 [12.78] years; 235 [66.6%] male patients) and 151 patients in the test set (mean [SD] age, 56.79 [10.95] years; 99 [65.6%] male patients). According to the variable importance of each factor, 16 were selected for the final RSF model, and postoperative extracorporeal membrane oxygenation time was identified as the most valuable factor. The RSF model had excellent performance with an iAUC of 0.879 (95% CI, 0.832-0.921) and an iBS of 0.130 (95% CI, 0.106-0.154). The Cox regression model fitted by the same modeling factors to the RSF model was significantly inferior to the RSF model with an iAUC of 0.658 (95% CI, 0.572-0.747; P < .001) and an iBS of 0.205 (95% CI, 0.176-0.233; P < .001). According to the RSF model predictions, the patients after LTx were stratified into 2 prognostic groups displaying significant difference, with mean overall survival of 52.91 months (95% CI, 48.51-57.32) and 14.83 months (95% CI, 9.44-20.22; log-rank P < .001), respectively., Conclusions and Relevance: In this prognostic study, the findings first demonstrated that RSF could provide more accurate overall survival prediction and remarkable prognostic stratification than the Cox regression model for patients after LTx.
- Published
- 2023
- Full Text
- View/download PDF
32. HIF-1α inhibitor YC-1 suppresses triple-negative breast cancer growth and angiogenesis by targeting PlGF/VEGFR1-induced macrophage polarization.
- Author
-
Li Y, Zhang MZ, Zhang SJ, Sun X, Zhou C, Li J, Liu J, Feng J, Lu SY, Pei-Jun L, and Wang JC
- Subjects
- Humans, Female, Placenta Growth Factor, Vascular Endothelial Growth Factor A metabolism, Vascular Endothelial Growth Factor Receptor-1, Macrophages metabolism, Cell Line, Tumor, Hypoxia-Inducible Factor 1, alpha Subunit, Triple Negative Breast Neoplasms drug therapy
- Abstract
Triple negative breast cancer (TNBC) is an invasive and metastatic phenotype of breast cancer with limited treatment options. Published studies have demonstrated an inhibitory effect of HIF-α inhibition by its inhibitor YC-1 (lificiguat) on growth and angiogenesis of TNBC. However, the underlying mechanism remains poorly understood. In the current paper, our results show that HIF-1α inhibitor significantly inhibited TNBC growth by increasing cellular apoptosis and decreasing MVD, independent of a cell-autonomous mechanism in both endothelial and tumor cells. Genetic screening and in vivo experiments showed that a large number of M2-polarized TAMs accumulated in the hypoxic peri-necrotic region (PNR), where placental growth factor (PlGF) and its ligand, vascular endothelial growth factor receptor-1 (VEGFR-1) were upregulated. Furthermore, YC-1 skewed the polarization of TAMs away from M2 to M1 phenotype, therefore inhibiting TNBC angiogenesis and growth. This effect was further abrogated by VEGFR-1 neutralization and TAM depletion following clodronate liposome injection. These findings provide preclinical evidence for an indirect mechanism underlying YC-1-induced suppression of TNBC growth and angiogenesis, thereby offering a treatment option for TNBC., Competing Interests: Conflict of interest statement The authors declare no conflict of interest., (Copyright © 2023 The Authors. Published by Elsevier Masson SAS.. All rights reserved.)
- Published
- 2023
- Full Text
- View/download PDF
33. The clinicopathological and prognostic significances of CDC73 expression in breast cancer: A pathological and bioinformatics analysis.
- Author
-
E Y, Xue H, Zhang CY, Zhao MZ, and Zheng HC
- Subjects
- Female, Humans, Prognosis, Mutation, Transcription Factors genetics, Carcinogenesis, RNA, Messenger, Tumor Suppressor Proteins genetics, Tumor Suppressor Proteins metabolism, Breast Neoplasms genetics
- Abstract
Parafibromin is a protein encoded by the oncosuppressor CDC73 gene, whose mutation results in hyperparathyroidism-jaw tumor syndrome (HPT-JT) and parathyroid carcinoma. Down-regulation of parafibromin is linked to lung, gastric, colorectal, and ovarian cancer tumorigenesis. Parafibromin expression was detected by RT-PCR, bioinformatics analysis, Western blot, and immunohistochemistry; and compared with clinicopathological characteristics of breast cancer. CDC73-related genes and pathways were analyzed using bioinformatics analysis. Parafibromin expression was increased in breast cancer compared to normal tissues at both mRNA and protein levels (p<0.05). Among triple-negative breast cancers, it was higher in basal-like 1 than basal-like 2 patients (p<0.05) and mesenchymal than immunomodulatory patients (p<0.05). CDC73 mRNA expression was positively correlated with white race, non-infiltrating immune cells, favorable luminal subtypes of PAM50, and prognosis of breast cancer patients (p<0.05). The differential genes of CDC73 were classified into enzyme inhibitors, peptidase, and keratinization by KEGG (p<0.05). Similarly, it was classified into ribosomes, TGF-β, oxidation phosphorylation, inositol phosphate metabolism, arachidonic acid metabolism, linoleic acid metabolism, ERBB, and VEGF signaling pathways by GSEA (p<0.05). The positively-correlated genes of CDC73 were involved in cell mobility, response to interferon α, nuclear pore and basket, and histone methyltransferase. The negatively-correlated genes of CDC73 were involved in the mitochondrial respiratory chain, thermogenesis, and ribosomes. Parafibromin expression was higher in invasive ductal than lobular carcinoma (p<0.05) and mucinous adenocarcinoma than others (p<0.05). Parafibromin immunoreactivity as an independent factor was positively associated with an increased overall survival rate of breast cancer patients (p<0.05). These findings suggest that up-regulation of parafibromin in breast cancer patients is closely linked to a favorable prognosis. It is involved in tumorigenesis and subsequent progression by regulating metabolism, ribosomes, and cytokines., (©The Author(s) 2023. Open Access. This article is licensed under a Creative Commons CC-BY International License.)
- Published
- 2023
- Full Text
- View/download PDF
34. SCF/c-Kit-activated signaling and angiogenesis require Gαi1 and Gαi3.
- Author
-
Shan HJ, Jiang K, Zhao MZ, Deng WJ, Cao WH, Li JJ, Li KR, She C, Luo WF, Yao J, Zhou XZ, Zhang D, and Cao C
- Subjects
- Animals, Humans, Mice, Adaptor Proteins, Signal Transducing metabolism, Proto-Oncogene Proteins c-kit genetics, Proto-Oncogene Proteins c-kit metabolism, Receptor Protein-Tyrosine Kinases metabolism, RNA, Small Interfering metabolism, Stem Cell Factor genetics, Stem Cell Factor metabolism, GTP-Binding Protein alpha Subunits, Gi-Go metabolism, Endothelial Cells metabolism, Signal Transduction genetics
- Abstract
The stem cell factor (SCF) binds to c-Kit in endothelial cells, thus activating downstream signaling and angiogenesis. Herein, we examined the role of G protein subunit alpha inhibitory (Gαi) proteins in this process. In MEFs and HUVECs, Gαi1/3 was associated with SCF-activated c-Kit, promoting c-Kit endocytosis, and binding of key adaptor proteins, subsequently transducing downstream signaling. SCF-induced Akt-mTOR and Erk activation was robustly attenuated by Gαi1/3 silencing or knockout (KO), or due to dominant negative mutations but was strengthened substantially following ectopic overexpression of Gαi1/3. SCF-induced HUVEC proliferation, migration, and capillary tube formation were suppressed after Gαi1/3 silencing or KO, or due to dominant negative mutations. In vivo , endothelial knockdown of Gαi1/3 by intravitreous injection of endothelial-specific shRNA adeno-associated virus (AAV) potently reduced SCF-induced signaling and retinal angiogenesis in mice. Moreover, mRNA and protein expressions of SCF increased significantly in the retinal tissues of streptozotocin-induced diabetic retinopathy (DR) mice. SCF silencing, through intravitreous injection of SCF shRNA AAV, inhibited pathological retinal angiogenesis and degeneration of retinal ganglion cells in DR mice. Finally, the expression of SCF and c-Kit increased in proliferative retinal tissues of human patients with proliferative DR. Taken together, Gαi1/3 mediate SCF/c-Kit-activated signaling and angiogenesis., Competing Interests: Competing Interests: The authors have declared that no competing interest exists., (© The author(s).)
- Published
- 2023
- Full Text
- View/download PDF
35. New and poorly known species of the genus Brachyllus Brenske, 1896 (Coleoptera: Scarabaeidae: Melolonthinae) from China.
- Author
-
Zhao MZ, Qi ZH, Su RX, and Liao TK
- Subjects
- Animals, China, Coleoptera
- Abstract
Three new species of the genus Brachyllus Brenske, 1896 are described from China including Brachyllus songhaitiani Zhao, Qi, Su & Liao, new species from Fujian and Jiangxi, B. dongzhiweii Zhao, new species from Xizang and B. tangzhaoyangi Zhao, new species from Guangxi. Brachyllus langeri Keith, 2008 is downgraded to a subspecies of B. rougeriei Keith, 2003 and reported from China for the first time. Newly collected material of B. deuveianus Keith, 2003 allows better definition of its variability. A distribution map for this genus is also presented.
- Published
- 2023
- Full Text
- View/download PDF
36. Two new species of the genus Eophileurus Arrow, 1908 (Coleoptera: Scarabaeidae: Dynastinae) from the Philippines and Vietnam, with first description of E. quadratifovealis Yang & Pathomwattananurak, 2022 female.
- Author
-
Qiao-Zhi Yang Georgi Geshev, Pathomwattananurak W, and Zhao MZ
- Subjects
- Female, Animals, Philippines, Vietnam, Coleoptera
- Abstract
Two new species, Eophileurus varipunctatus Yang, Pathomwattananurak & Zhao, new species from Mindoro and Palawan, the Philippines and Eophileurus vietnamensis Yang, Pathomwattananurak & Zhao, new species from Vietnam are described and illustrated. Eophileurus iwasei Muramoto, 1995 and E. chinensis (Faldermann, 1935) are illustrated and compared to each new species, respectively. The female of E. quadratifovealis Yang & Pathomwattananurak, 2022 is described for the first time.
- Published
- 2023
- Full Text
- View/download PDF
37. Identification of matrix-remodeling associated 5 as a possible molecular oncotarget of pancreatic cancer.
- Author
-
Peng SQ, Zhu XR, Zhao MZ, Zhang YF, Wang AR, Chen MB, and Ye ZY
- Subjects
- Animals, Mice, Humans, Mice, Nude, Phosphatidylinositol 3-Kinases metabolism, TOR Serine-Threonine Kinases metabolism, Cell Proliferation, RNA, Small Interfering therapeutic use, Cell Line, Tumor, Cell Movement genetics, Epithelial-Mesenchymal Transition, Pancreatic Neoplasms, Proto-Oncogene Proteins c-akt metabolism, Pancreatic Neoplasms pathology
- Abstract
Pancreatic cancer has an extremely poor prognosis. Here we examined expression, potential functions and underlying mechanisms of MXRA5 (matrix remodeling associated 5) in pancreatic cancer. Bioinformatics studies revealed that MXRA5 transcripts are significantly elevated in pancreatic cancer tissues, correlating with the poor overall survival, high T-stage, N1 and pathologic stage of the patients. MXRA5 mRNA and protein expression is significantly elevated in microarray pancreatic cancer tissues and different pancreatic cancer cells. In primary and immortalized (BxPC-3 and PANC-1 lines) pancreatic cancer cells, shRNA-induced MXRA5 silencing or CRISPR/Cas9-mediated MXRA5 knockout suppressed cell survival, proliferation, migration, invasion, and epithelial-mesenchymal transition (EMT), while provoking cell apoptosis. Conversely, forced overexpression of MXRA5 further promoted pancreatic cancer cell progression and EMT. Bioinformatics studies and the protein chip analyses revealed that differentially expressed genes (DEGs) and differentially expressed proteins (DEPs) in MXRA5-overexpressed primary pancreatic cancer cells were enriched in the PI3K-Akt-mTOR cascade. Indeed, Akt-mTOR activation in primary human pancreatic cancer cells was inhibited by MXRA5 shRNA or knockout, but was augmented following MXRA5 overexpression. In vivo, the growth of MXRA5 KO PANC-1 xenografts was largely inhibited in nude mice. Moreover, intratumoral injection of adeno-associated virus-packed MXRA5 shRNA potently inhibited primary pancreatic cancer cell growth in nude mice. Akt-mTOR activation was also largely inhibited in the MXRA5-depleted pancreatic cancer xenografts. Contrarily MXRA5 overexpression promoted primary pancreatic cancer cell growth in nude mice. Together, overexpressed MXRA5 is important for pancreatic cancer cell growth possibly through promoting EMT and Akt-mTOR activation. MXRA5 could be a potential therapeutic oncotarget for pancreatic cancer., (© 2023. The Author(s).)
- Published
- 2023
- Full Text
- View/download PDF
38. Deep learning and radiomic feature-based blending ensemble classifier for malignancy risk prediction in cystic renal lesions.
- Author
-
He QH, Feng JJ, Lv FJ, Jiang Q, and Xiao MZ
- Abstract
Background: The rising prevalence of cystic renal lesions (CRLs) detected by computed tomography necessitates better identification of the malignant cystic renal neoplasms since a significant majority of CRLs are benign renal cysts. Using arterial phase CT scans combined with pathology diagnosis results, a fusion feature-based blending ensemble machine learning model was created to identify malignant renal neoplasms from cystic renal lesions (CRLs). Histopathology results were adopted as diagnosis standard. Pretrained 3D-ResNet50 network was selected for non-handcrafted features extraction and pyradiomics toolbox was selected for handcrafted features extraction. Tenfold cross validated least absolute shrinkage and selection operator regression methods were selected to identify the most discriminative candidate features in the development cohort. Feature's reproducibility was evaluated by intra-class correlation coefficients and inter-class correlation coefficients. Pearson correlation coefficients for normal distribution and Spearman's rank correlation coefficients for non-normal distribution were utilized to remove redundant features. After that, a blending ensemble machine learning model were developed in training cohort. Area under the receiver operator characteristic curve (AUC), accuracy score (ACC), and decision curve analysis (DCA) were employed to evaluate the performance of the final model in testing cohort., Results: The fusion feature-based machine learning algorithm demonstrated excellent diagnostic performance in external validation dataset (AUC = 0.934, ACC = 0.905). Net benefits presented by DCA are higher than Bosniak-2019 version classification for stratifying patients with CRL to the appropriate surgery procedure., Conclusions: Fusion feature-based classifier accurately distinguished malignant and benign CRLs which outperformed the Bosniak-2019 version classification and illustrated improved clinical decision-making utility., (© 2023. The Author(s).)
- Published
- 2023
- Full Text
- View/download PDF
39. Effects of breviscapine on cerebral ischemia-reperfusion injury and intestinal flora imbalance by regulating the TLR4/MyD88/NF-κB signaling pathway in rats.
- Author
-
Chen HD, Jiang MZ, Zhao YY, Li X, Lan H, Yang WQ, and Lai Y
- Subjects
- Animals, Cytochrome P-450 CYP3A genetics, Cytochrome P-450 CYP3A metabolism, Flavonoids, Molecular Docking Simulation, Myeloid Differentiation Factor 88 genetics, Myeloid Differentiation Factor 88 metabolism, NF-kappa B metabolism, Nimodipine pharmacology, RNA, Messenger metabolism, RNA, Ribosomal, 16S, Rats, Rats, Sprague-Dawley, Signal Transduction, Toll-Like Receptor 4 genetics, Toll-Like Receptor 4 metabolism, Brain Ischemia drug therapy, Brain Ischemia metabolism, Drugs, Chinese Herbal pharmacology, Drugs, Chinese Herbal therapeutic use, Erigeron genetics, Erigeron metabolism, Gastrointestinal Microbiome, Reperfusion Injury drug therapy, Reperfusion Injury metabolism
- Abstract
Ethnopharmacological Relevance: The plant Erigeron breviscapus (Vant.) Hand.-Mazz.,a Chinese herbal medicine with multiple pharmacological effects and clinical applications, has been traditionally used in the treatment of paralysis caused by stroke and joint pain from rheumatism by the Yi minority people of Southwest China for generations.However, its mechanism involves many factors and has not been fully clarified., Aim of the Study: Taking intestinal flora as the target, the protective effect of extract(breviscapine) of E. breviscapus on cerebral ischemia and its possible mechanism were discussed from the perspective of brain inflammatory pathway and intestinal CYP3A4, which depends on intestinal flora., Materials and Methods: In this study, we first verified the binding ability between major active ingredient of Erigeron breviscapus and the core target TLR4 protein by molecular docking using Vina software.We established a rat model of cerebral ischemia-reperfusion injury in vivo.The neurological function of rats was scored by Bederson score table, the cerebral infarction volume was detected by TTC staining, and the serum NSE level was detected by ELASA. 16S rRNA sequencing was used to detect the intestinal flora of rats in each group.The expression levels of cerebral TLR4/MyD88/NF-κB and CYP3A4 mRNA and protein in different intestinal segments were detected by qRT-PCR and Western blot., Results: Compared with the model group, the neurological injury score, infarct volume and serum NSE concentration of breviscapine low, medium and high dose groups and nimodipine groups decreased significantly. Meanwhile, breviscapine could significantly reduce the expression level of the TLR4/MyD88/NF-κB in brain tissue and CYP3A4 in different intestinal segments of rats with cerebral ischemia-reperfusion injury. In addition, breviscapine also significantly ameliorated intestinal flora dysbiosis of rats with cerebral ischemia-reperfusion injury., Conclusions: Breviscapine can protect rats from cerebral ischemia-reperfusion injury by regulating intestinal flora, inhibiting brain TLR4/MyD88/NF-κB inflammatory pathway and intestinal CYP3A4 expression., Competing Interests: Declaration of competing interest No potential conflict of interest was reported by the authors., (Copyright © 2022 Elsevier B.V. All rights reserved.)
- Published
- 2023
- Full Text
- View/download PDF
40. Baicalein Relieves Ferroptosis-Mediated Phagocytosis Inhibition of Macrophages in Ovarian Endometriosis.
- Author
-
Yi ZH, Li SQ, Ke JY, Wang Y, Zhao MZ, Li J, Li MQ, and Zhu ZL
- Abstract
Iron overload and oxidative stress have been reported to contribute to ferroptosis in endometriotic lesions. However, the possible roles of iron overload on macrophages in endometriosis (EMs) remain unknown. Based on recent reports by single-cell sequencing data of endometriosis, here we found significant upregulations of ferroptosis-associated genes in the macrophage of the endometriotic lesion. Additionally, there was an elevated expression of HMOX1 , FTH1 , and FTL in macrophages of peritoneal fluid in EMs, as well as iron accumulation in the endometriotic lesions. Notably, cyst fluid significantly up-regulated levels of intracellular iron and ferroptosis in Phorbol-12-myristate-13-acetate (PMA)-stimulated THP-1 cells. Additionally, high iron-induced ferroptosis obviously reduced PMA-stimulated THP-1 cells' phagocytosis and increased the expression of angiogenic cytokines, such as vascular endothelial growth factor A (VEGFA) and interleukin 8 (IL8). Baicalein, a potential anti-ferroptosis compound, increased GPX4 expression, significantly inhibited ferroptosis, and restored phagocytosis of THP-1 cells in vitro. Collectively, our study reveals that ferroptosis triggered by high iron in cyst fluid promotes the development of EMs by impairing macrophage phagocytosis and producing more angiogenic cytokines (e.g., IL8 and VEGFA). Baicalein displays the potential for the treatment of EMs, especially in patients with high ferroptosis and low phagocytosis of macrophages.
- Published
- 2022
- Full Text
- View/download PDF
41. Characterization of driver mutations in Chinese non-small cell lung cancer patients using a novel targeted sequencing panel.
- Author
-
Zhao J, Wu Y, Chen MJ, Xu Y, Zhong W, and Wang MZ
- Abstract
Background: The identification of driver mutations has greatly promoted the precise diagnosis and treatment of non-small cell lung cancer (NSCLC), but there is lack of targeted sequencing panels specifically designed and applied to Chinese NSCLC patients. This study aimed to design and validate of a novel sequencing panel for comprehensive characterization of driver mutations in Chinese NSCLC patients, facilitating further exploration of downstream pathway alterations and therapeutic utility., Methods: A novel target sequencing panel including 21 driver genes was designed and examined in a cohort of 260 Chinese NSCLC patients who underwent surgery in Peking Union Medical College Hospital (PUMCH). Genetic alterations were identified and further analyzed for driver mutations, downstream pathways and therapeutic utilities., Results: The most frequently identified driver mutations in PUMCH NSCLC cohort were on genes TP53 (28%), EGFR (27%) and PIK3CA (19%) for lung adenocarcinoma (LUAD), and TP53 (41%), PIK3CA (14%) and CDKN2A (13%) for lung squamous cell carcinoma (LUSC), respectively. Downstream pathway analysis revealed common pathways like G1_AND_S1_PHASES pathway were shared not only between LUAD and LUSC patients, but also among three different NSCLC cohorts, while other pathways were subtype-specific, like the unique enrichment of SHC1_EVENT_IN_EGFR_SIGNALING pathway in LUAD patients, and P38_ALPHA_BETA_DOWNSTREAM pathway in LUSC patients, respectively. About 60% of both LUAD and LUSC patients harbored driver mutations as sensitive biomarkers for different targeted therapies, covering not only frequent mutations like EGFR L858R mutation, but also rare mutations like BRAF D594N mutation., Conclusions: Our study provides a novel target sequencing panel suitable for Chinese NSCLC patients, which can effectively identify driver mutations, analyze downstream pathway alterations and predict therapeutic utility. Overall it is promising to further optimize and apply this panel in clinic with convenience and effectiveness., Competing Interests: Conflicts of Interest: All authors have completed the ICMJE uniform disclosure form (available at https://jtd.amegroups.com/article/view/10.21037/jtd-22-909/coif). The authors have no conflicts of interest to declare., (2022 Journal of Thoracic Disease. All rights reserved.)
- Published
- 2022
- Full Text
- View/download PDF
42. Effectiveness of Mobile Medical Apps in Ensuring Medication Safety Among Patients With Chronic Diseases: Systematic Review and Meta-analysis.
- Author
-
Zhou TT, Wang R, Gu SJ, Xie LL, Zhao QH, Xiao MZ, and Chen YL
- Subjects
- Humans, Chronic Disease, Medication Adherence, China, Canada, Mobile Applications
- Abstract
Background: Along with the rapid growth of the global aging society, the mobile and health digital market has expanded greatly. Countless mobile medical apps (mmApps) have sprung up in the internet market, aiming to help patients with chronic diseases achieve medication safety., Objective: Based on the medication safety action plans proposed by the World Health Organization, we aimed to explore the effectiveness of mmApps in ensuring the medication safety of patients with chronic diseases, including whether mmApps can improve the willingness to report adverse drug events (ADEs), improve patients' medication adherence, and reduce medication errors. We hoped to verify our hypothesis through a systematic review and meta-analysis., Methods: The meta-analysis was performed in strict accordance with the PRISMA (Preferred Reporting Items for Systematic Reviews and Meta-Analyses) guidelines and included literature searched from 7 databases-PubMed, Web Of Science, Embase, CINAHL, China National Knowledge Infrastructure, Wanfang, and SinoMed. The publication time was limited to the time of database establishment to April 30, 2022. Studies were screened based on inclusion and exclusion criteria. The data extracted included authors, years of publication, countries or regions, participants' characteristics, intervention groups, and control groups, among others. Our quality assessment followed the guidelines of the Cochrane Handbook for Systematic Reviews of Interventions, Version 6.3. RevMan 5.2 software (Cochrane Collaboration) was used to analyze the statistical data, and a sensitivity analysis was performed to assess data stability. The degree of stability was calculated by using a different statistical method and excluding large-sample studies from the analysis., Results: We included 8 studies from 5 countries (China, the United States, France, Canada, and Spain) that were published from January 1, 2014, to December 31, 2021. The total number of participants was 1355, and we analyzed the characteristics of included studies, each app's features, the risk of bias, and quality. The results showed that mmApps could increase ADE reporting willingness (relative risk [RR] 2.59, 95% CI 1.26-5.30; P=.009) and significantly improve medication adherence (RR 1.17, 95% CI 1.04-1.31; P=.007), but they had little effect on reducing medication errors (RR 1.54, 95% CI 0.33-7.29; P=.58)., Conclusions: We analyzed the following three merits of mmApps, with regard to facilitating the willingness to report ADEs: mmApps facilitate more communication between patients and physicians, patients attach more importance to ADE reporting, and the processing of results is transparent. The use of mmApps improved medication adherence among patients with chronic diseases by conveying medical solutions, providing educational support, tracking medications, and allowing for remote consultations. Finally, we found 3 potential reasons for why our medication error results differed from those of other studies., Trial Registration: PROSPERO International Prospective Register of Systematic Reviews CRD42022322072; https://www.crd.york.ac.uk/prospero/display_record.php?RecordID=322072., (©Ting ting Zhou, Rui Wang, Si jia Gu, Li ling Xie, Qing hua Zhao, Ming zhao Xiao, Yu lu Chen. Originally published in JMIR mHealth and uHealth (https://mhealth.jmir.org), 22.11.2022.)
- Published
- 2022
- Full Text
- View/download PDF
43. Decellularized tilapia fish skin: A novel candidate for tendon tissue engineering.
- Author
-
Liu Z, Yu MZ, Peng H, Liu RT, Lim T, Zhang CQ, Zhu ZZ, and Wei XJ
- Abstract
The poor regenerative ability of injured tendon tissues remains a clinical challenge. However, decellularized extracellular matrix (ECM) combined with stem cells shows promise. In contrast to bovine and porcine ECM, marine-derived decellularized ECM has several advantages; it is easily obtained, poses less biological risk, and is not contraindicated on religious grounds. This study successfully fabricated decellularized tilapia fish skin (DTFS) with copious preserved collagen fibers and natural pore structures. The outer layer is smooth and dense, while the inner layer has a soft structure with a rough surface. After crosslinking with 1-ethyl-3-(3-dimethylaminopropyl)-carbodiimide (EDC) and N-hydroxysuccinimide (NHS), crosslinked DTFS (C-DTFS) showed improved mechanics in dry and wet conditions. In vitro , the leach liquor of crosslinked DTFS showed no cytotoxicity and promoted migration and tenonic differentiation of tendon-derived stem cells (TDSCs). Meanwhile, TDSCs seeded in the inner surface of DTFS maintained viability, differentiated, and exhibited spreading. Furthermore, cell-seeded scaffolds guided the regeneration of tendon tissue in a rat Achilles tendon defect model. Our results suggest that DTFS combined with TDSCs is a novel and promising therapeutic option for tendon tissue engineering., Competing Interests: The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (© 2022 The Author(s).)
- Published
- 2022
- Full Text
- View/download PDF
44. piRNA 3' uridylation facilitates the assembly of MIWI/piRNA complex for efficient target regulation in mouse male germ cells.
- Author
-
Zhao MZ, Lin DH, Zuo H, Wei H, Wang X, Gou LT, and Liu MF
- Subjects
- Animals, Male, Mice, Germ Cells metabolism, Testis metabolism, Argonaute Proteins genetics, Argonaute Proteins metabolism, RNA, Small Interfering genetics, RNA, Small Interfering metabolism, Spermatogenesis genetics
- Published
- 2022
- Full Text
- View/download PDF
45. Stratification of malignant renal neoplasms from cystic renal lesions using deep learning and radiomics features based on a stacking ensemble CT machine learning algorithm.
- Author
-
He QH, Tan H, Liao FT, Zheng YN, Lv FJ, Jiang Q, and Xiao MZ
- Abstract
Using nephrographic phase CT images combined with pathology diagnosis, we aim to develop and validate a fusion feature-based stacking ensemble machine learning model to distinguish malignant renal neoplasms from cystic renal lesions (CRLs). This retrospective research includes 166 individuals with CRLs for model training and 47 individuals with CRLs in another institution for model testing. Histopathology results are adopted as diagnosis criterion. Nephrographic phase CT scans are selected to build the fusion feature-based machine learning algorithms. The pretrained 3D-ResNet50 CNN model and radiomics methods are selected to extract deep features and radiomics features, respectively. Fivefold cross-validated least absolute shrinkage and selection operator (LASSO) regression methods are adopted to identify the most discriminative candidate features in the development cohort. Intraclass correlation coefficients and interclass correlation coefficients are employed to evaluate feature's reproducibility. Pearson correlation coefficients for normal distribution features and Spearman's rank correlation coefficients for non-normal distribution features are used to eliminate redundant features. After that, stacking ensemble machine learning models are developed in the training cohort. The area under the receiver operator characteristic curve (ROC), calibration curve, and decision curve analysis (DCA) are adopted in the testing cohort to evaluate the performance of each model. The stacking ensemble machine learning algorithm reached excellent diagnostic performance in the testing dataset. The calibration plot shows good stability when using the stacking ensemble model. Net benefits presented by DCA are higher than the Bosniak 2019 version classification when employing any machine learning algorithm. The fusion feature-based machine learning algorithm accurately distinguishes malignant renal neoplasms from CRLs, which outperformed the Bosniak 2019 version classification, and proves to be more applicable for clinical decision-making., Competing Interests: The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest., (Copyright © 2022 He, Tan, Liao, Zheng, Lv, Jiang and Xiao.)
- Published
- 2022
- Full Text
- View/download PDF
46. Extraction, Characterization, and Platelet Inhibitory Effects of Two Polysaccharides from the Cs-4 Fungus.
- Author
-
Mao YH, Song FL, Xu YX, Song AX, Wang ZM, Zhao MZ, He F, Tian ZZ, and Yang Y
- Subjects
- Mice, Humans, Animals, Galactose metabolism, Fibrinolytic Agents metabolism, Mannose metabolism, Arabinose, Powders, Polysaccharides pharmacology, Polysaccharides metabolism, Glucose metabolism, Cardiovascular Diseases, Cordyceps metabolism, Thrombosis drug therapy
- Abstract
Cardiovascular diseases are associated with platelet hyperactivity, and downregulating platelet activation is one of the promising antithrombotic strategies. This study newly extracted two polysaccharides (purified exopolysaccharides, EPSp and purified intercellular exopolysaccharides, IPSp) from Cordyceps sinensis Cs-4 mycelial fermentation powder, and investigated the effects of the two polysaccharides and their gut bacterial metabolites on platelet functions and thrombus formation. EPSp and IPSp are majorly composed of galactose, mannose, glucose, and arabinose. Both EPSp and IPSp mainly contain 4-Gal p and 4-Glc p glycosidic linkages. EPSp and IPSp significantly inhibited human platelet activation and aggregation with a dose-dependent manner, and attenuated thrombus formation in mice without increasing bleeding risk. Furthermore, the EPSp and IPSp after fecal fermentation showed enhanced platelet inhibitory effects. The results have demonstrated the potential value of Cs-4 polysaccharides as novel protective ingredients for cardiovascular diseases.
- Published
- 2022
- Full Text
- View/download PDF
47. Gut microbiota shed new light on the management of immune-related adverse events.
- Author
-
Tan B, Liu YX, Tang H, Chen D, Xu Y, Chen MJ, Li Y, Wang MZ, and Qian JM
- Subjects
- Animals, Anti-Bacterial Agents, Humans, Immune Checkpoint Inhibitors adverse effects, Mice, Prebiotics, Colitis chemically induced, Colitis therapy, Gastrointestinal Microbiome
- Abstract
Immunotherapy has dramatically revolutionized the therapeutic landscape for patients with cancer. Although immune checkpoint inhibitors are now accepted as effective anticancer therapies, they introduce a novel class of toxicity, termed immune-related adverse events, which can lead to the temporary or permanent discontinuation of immunotherapy and life-threatening tumor progression. Therefore, the effective prevention and treatment of immune-related adverse events is a clinical imperative to maximize the utility of immunotherapies. Immune-related adverse events are related to the intestinal microbiota, baseline gut microbiota composition is an important determinant of immune checkpoint inhibitor-related colitis, and antibiotics exacerbate these undesirable side-effects. Supplementation with specific probiotics reduces immune checkpoint inhibitor-related colitis in mice, and fecal microbiota transplantation has now been shown to effectively treat refractory immune checkpoint inhibitor-related colitis in the clinic. Hence, modifying the microbiota holds great promise for preventing and treating immune-related adverse events. Microbiomes and their metabolites play important roles in the potential underlying mechanisms through interactions with both innate and adaptive immune cells. Here we review the gut microbiota and immune regulation; the changes occurring in the microbiota during immune checkpoint inhibitor therapy; the relationship between the microbiota and immune-related adverse events, antibiotics, probiotics/prebiotics, and fecal microbiota transplantation in immune checkpoint inhibitor-related colitis; and the protective mechanisms mediated by the microbiome and metabolites in immune-related adverse events., (© 2022 The Authors. Thoracic Cancer published by China Lung Oncology Group and John Wiley & Sons Australia, Ltd.)
- Published
- 2022
- Full Text
- View/download PDF
48. Laponite intercalated biomimetic multilayer coating prevents glucocorticoids induced orthopedic implant failure.
- Author
-
Liu Z, Tang Q, Liu RT, Yu MZ, Peng H, Zhang CQ, Zhu ZZ, and Wei XJ
- Abstract
Implant failure, which is commonly associated with failure of osseointegration and peri-implant infection, is a severe complication of orthopedic surgery. In particular, the survival rate of implants is significantly decreased in patients using long-term glucocorticoids (GCs). However, the exact molecular mechanism underlying GCs-induced implant loosening, as well as preventive strategies for these patients, is unclear. To address this problem, we performed RNA-sequencing and found that WNT16 was correlated with GCs-induced osteopenia (LogFC = -5.17, p < 0.01). Inspired by the concept of "organic-inorganic" hybrid, we theorized to introduce a bioactive two-dimensional nanosheet into a layer-by-layer (LbL) self-assembly coating to construct a customized implant that targets WNT16. After screening commercially available nanosheets, laponite (LAP) was identified as a cost-effective rescuer for GCs-induced WNT16 inhibition, which was then intercalated into LbL deposition system consisting of quaternized chitosan (QCS) and hyaluronic acid (HA). The hybrid coating (QCS/HA/LAP) showed micrometer thickness and improved hydrophilicity and interface roughness. Furthermore, QCS/HA/LAP coated polyetheretherketone (PEEK) implant enhanced cell viability, adhesion, and osteogenic differentiation of bone marrow mesenchymal stem cells (BMSCs), and promoted osteointegration of PEEK in GCs-treated rats by targeting the WNT16/β-catenin axis. The assembled QCS has proven antibacterial properties, and the hybrid coating exerted potent detrimental effects against methicillin-resistant Staphylococcus aureus (MRSA) and Escherichia coli ( E. coli ), both in vitro and in vivo . Taken together, these results suggest that QCS/HA/LAP coating has great potential for use in implants customization, and has synergistic pro-osteogenic and antibacterial effects that help prevent implant failure in GCs-treated patients., Competing Interests: The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (© 2022 The Authors.)
- Published
- 2022
- Full Text
- View/download PDF
49. Ligand-binding specificities of four odorant-binding proteins in Conogethes punctiferalis.
- Author
-
Tian L, Guo HG, Ren ZG, Zhang AH, Qin XC, Zhang MZ, and Du YL
- Subjects
- Animals, Insect Proteins, Ligands, Odorants, Pheromones, Moths, Receptors, Odorant, Sex Attractants
- Abstract
Odorant-binding proteins (OBPs) play essential roles in lepidopteran insects' perception of host volatiles by binding and transporting hydrophobic ligands. The yellow peach moth (YPM), Conogethes punctiferalis (Guenée), is a serious agricultural pest, with broad host range and cryptic feeding habits. However, few studies about YPM perceiving pheromones and host plant odorants have been reported. In this study, four OBP genes (CpunOBP8, CpunOBP9, CpunABP, and CpunGOBP2) were cloned from the antennae of YPM. The recombinant proteins were expressed and purified by prokaryotic expression system, with their binding affinities to 26 ligands being tested. Four CpunOBPs all had six conserved cysteine residues, which were typical structural characteristics of classical OBPs. The fluorescence competitive binding assay indicated that CpunOBP8 and CpunABP could not only exhibit high binding affinities to female sex pheromones, but also to host plant odorants. For example, CpunOBP8 bound strongly with cis-10-hexadecenal, hexadecanal, and so forth, whereas CpunABP bound with cis-10-hexadecenal, camphene, and 3-carene. Comparatively, CpunOBP9 and CpunGOBP2 could only bind with host plant odorants, with CpunOBP9 binding strongly to 3-methyl-1-butanol, hexyl acetate, and so forth, while CpunGOBP2 displaying the widest binding spectra and correlating with 3-carene, pentyl acetate, and so forth. The results indicated that on the one hand, each of the four CpunOBPs had its specific binding spectra when binding and transporting olfactory ligands; on the other hand, the same ligand might be bound to more than one CpunOBPs, which would provide information for the potential application of semiochemicals in controlling YPM., (© 2022 Wiley Periodicals LLC.)
- Published
- 2022
- Full Text
- View/download PDF
50. A case of a death caused by an atrial-oesophageal-thoracic fistula after radiofrequency ablation of atrial fibrillation.
- Author
-
Wu QL, Wang Q, Guo GX, Li YG, Xing Y, Zhao MZ, Li H, and Li JB
- Subjects
- Heart Atria, Humans, Male, Middle Aged, Atrial Fibrillation complications, Atrial Fibrillation surgery, Catheter Ablation adverse effects, Esophageal Fistula complications, Esophageal Fistula surgery, Fistula complications, Fistula surgery
- Abstract
The report is about a 49-year-old man with rheumatic heart disease and atrial fibrillation. He underwent mitral valve replacement, tricuspid valvuloplasty, and atrial fibrillation radiofrequency ablation in the hospital. He vomited blood on the 2nd postoperative day, and the bleeding gradually worsened thereafter. He had to have repeated drainage of large amounts of blood from his right thoracic cavity and digestive tract. He died suddenly after undergoing an oesophageal endoscopy on the 24th postoperative day. The autopsy revealed an atrial-oesophageal-thoracic fistula. By excluding the possibility of the fistula being caused by complications from nasoenteric feeding, tracheal intubation, and a foreign body ingestion, we determined that the atrial-oesophageal-thoracic fistula was a complication after radiofrequency ablation according to the finding of coagulation necrosis of the myocardial cells at the left atrium fistula. In addition, we also performed an elemental analysis on the radiofrequency ablation area and other cardiac tissues by scanning electron microscopy-energy dispersive spectroscopy (SEM-EDS) and found five metal elements, Cr, Cu, Zn, Mn, and Ti, which specifically existed in the radiofrequency ablation area. This finding has the potential to serve as new evidence for radiofrequency ablation and is a worthy direction of research., (Copyright © 2022 Elsevier Ltd and Faculty of Forensic and Legal Medicine. All rights reserved.)
- Published
- 2022
- Full Text
- View/download PDF
Catalog
Discovery Service for Jio Institute Digital Library
For full access to our library's resources, please sign in.