2,791 results on '"Su YS"'
Search Results
2. Endovascular therapy of bronchial artery aneurysm: five cases with six aneurysms.
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Lü PH, Wang LF, Su YS, Lee DH, Wang SX, Sun L, Geng SP, Huang WN, Lü, Peng-Hua, Wang, Li-Fu, Su, Yu-Sheng, Lee, Deok-Hee, Wang, Shu-Xiang, Sun, Ling, Geng, Su-Ping, and Huang, Wen-Nuo
- Abstract
The objective of this study was to investigate the effect of transcatheter arterial embolization (TAE) with N-butyl-2-cyanoacrylate (NBCA)-Lipiodol mixture in patients with bronchial artery aneurysm (BAA). From January 2005 to January 2010, five patients presenting hemoptysis with six BAAs were treated with NBCA-Lipiodol mixture, including intra-aneurysm embolization (IAE) in one patient. Adjuvant embolization with spherical polyvinyl alcohol (PVA) embolic microparticles or NBCA was first performed to embolize the distal engorged bronchiectatic arteries. Bronchial arterial angiography showed six BAAs (four in the right lobe and two in the left lobe) and some engorged, tortuous bronchial arteries. TAE through microcatheter was successful in all cases. Postembolization angiogram demonstrated the NBCA cast and total occlusion of BAAs and bronchiectatic engorged vessels. After these procedures, hemoptysis completely disappeared in all patients. Follow-up computed tomography (CT) scan was performed at an average of 3 months (range 2 to 6), which showed no enhancement of BAAs and accumulation of NBCA. TAE is a minimally invasive, effective, and reliable approach for treatment for patients with BAA. NBCA-Lipiodol mixture provides a good choice for treatment of BAA, especially when catheterization of the efferent branches is impossible. [ABSTRACT FROM AUTHOR]
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- 2011
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3. Comparison of NAT1, NAT2 & GSTT2-2 activities in normal and neoplastic human breast tissues
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Geylan-SU, YS, Isgor, B, Coban, T, Kapucuoglu, N, Aydintug, S, Iscan, M, Güray, Nülüfer Tülün, and OpenMETU
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Pharmacology ,Pharmaceutical Science - Abstract
In this study, arylamine N-acetyltransferases, NATs (E.C.2.3.1.5) and glutathione-S-transferase-T2-2, GSTT2-2 (E.C.2.5.1.18) enzyme activities in the breast tumor and surrounding tumor-free tissues of 22 female breast cancer patients with infiltrating ductal carcinoma were measured. The possible impacts of grade of malignancy, chemotherapy treatment, estrogen receptor status and menopausal status on all enzyme activities were evaluated. The results showed that, both NAT2 and GSTT2-2 display significant differences between tumor and tumor-free breast tissues, while no difference was observed in NAT1. Grade of malignancy seems to be positively associated with NAT1 and negatively associated with GSTT2-2. Though, both NAT2 and GSTT2-2 have increased mean tumor activities, the grade of malignancy, chemotherapy status, menopausal status or estrogen receptor status are not correlated statistically.
4. Surviving the cold: Assessing long-term outcomes among Korean CKD patients exposed to low perceived temperature during winter.
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Ko A, Oh S, Byon JY, Weon B, Lee J, Lee W, Oh YK, Kim DK, Kim S, Kim YS, Lim CS, and Lee JP
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- Humans, Male, Female, Retrospective Studies, Middle Aged, Aged, Republic of Korea epidemiology, Adult, Seoul epidemiology, Renal Insufficiency, Chronic mortality, Renal Insufficiency, Chronic epidemiology, Cold Temperature adverse effects, Seasons
- Abstract
Perceived temperature (PT), which encompasses meteorological factors such as wind speed, cloud cover, and humidity, reflects the actual effect of temperature on the human body. However, limited data exist on the health implications of prolonged exposure to low temperatures during winter in individuals with chronic kidney disease (CKD). We investigated the association between winter PT and long-term outcomes among CKD patients. A total of 32,870 CKD patients from three tertiary hospitals in Seoul were enrolled in this retrospective study (2001-2018). PT was calculated using Staiger's equation, integrating temperature data from 29 automated weather stations across Seoul, along with dew point temperature, wind velocity, and cloud cover data. Kriging interpolation was utilized to estimate PT values at the patients' locations. Overall mortality and major adverse cardiovascular events (MACEs) were assessed using a time-varying Cox proportional hazards model. Additionally, the Cox regression model evaluated PT corresponding to temperature thresholds for cold surge watches or warnings. Over a median follow-up of 6.14 ± 3.96 years, 6147 deaths (18.7%) were recorded. We found that as the average or minimum PT and Ta decreased by 1 °C, the risk of overall mortality significantly increased. In multivariable analyses, the hazard ratio (HR) for the average PT was 1.049 (95% confidence interval [CI] 1.028-1.071), and that for the minimum PT was 1.038 (CI 1.027-1.052). Furthermore, a cold surge warning at a PT of -25.63 °C indicated an HR of 1.837 (CI 1.764-1.914) and a C-index of 0.792. The increased risk of mortality was more pronounced in patients with low or middle socioeconomic statuses. For MACEs, lower average and minimum PT and Ta were associated with an increased risk, following a similar trend to overall mortality, although not all results reached statistical significance. These findings emphasize the importance of targeted public health policies to mitigate risks among vulnerable CKD patients., 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 © 2024. Published by Elsevier Inc.)
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- 2024
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5. Identification of Novel Genetic Loci Affecting Age at Onset of Parkinson's Disease: A Genome-wide Association Study.
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Hwang YS, Jo S, Lee SH, Park KW, Shin E, Park Y, Seo Y, Kwon KY, Kim JS, Jeon SR, Lee JH, and Chung SJ
- Abstract
Background: The age at onset (AAO) of Parkinson's disease (PD) varies widely among individuals and significantly influences disease progression and prognosis. However, few genome-wide association studies (GWASs) have investigated genetic variants determining AAO, particularly in East Asian populations., Objectives: To identify single-nucleotide polymorphisms (SNPs) affecting AAO of PD in Korean patients., Methods: We conducted a GWAS on AAO of PD in 1048 Korean patients using sex-adjusted linear regression models. Additionally, we conducted downstream analyses of our primary GWAS results., Results: rs2134545 demonstrated genome-wide significance (β = -2.459; standard error [SE] = 0.851; P = 1.898 × 10
-8 ) and is an intergenic SNP near the ALCAM gene associated with an average AAO reduction of 3.47 years. Additionally, rs4366309 (LYST; MIR1537) demonstrated suggestive significance (β = 2.949; SE = 1.072; P = 8.68 × 10-8 ) and was associated with an average delay of 3.05 years. The polygenic risk score based on known PD risk loci also affected the AAO for European and Korean PD risk loci, respectively (β = -0.149; P < 0.001 and β = -0.096; P = 0.002). However, the proportion of variance was small (r2 = 0.022 and 0.009, respectively)., Conclusion: We identified a novel SNP associated with the AAO of PD near the ALCAM gene, distinct from previously reported PD risk loci. These findings need further functional validation; however, they suggest unique genetic pathways influencing the AAO of PD and highlight the need for further research in diverse populations. © 2024 The Author(s). Movement Disorders published by Wiley Periodicals LLC on behalf of International Parkinson and Movement Disorder Society., (© 2024 The Author(s). Movement Disorders published by Wiley Periodicals LLC on behalf of International Parkinson and Movement Disorder Society.)- Published
- 2024
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6. Eco-friendly biocontrol of pine wilt disease: Enhancing tree defense with Bacillus subtilis JCK-1398 for sustainable forest management.
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Mannaa M, Park AR, Park J, Jeon HW, Jung H, Jeon HS, Han G, Kim JC, and Seo YS
- Abstract
Pine wilt disease (PWD), caused by pinewood nematodes (Bursaphelenchus xylophilus), poses a significant threat to forestry worldwide. This study introduces a novel biocontrol strategy using Bacillus subtilis JCK-1398, which was selected and identified for its resistance-induction potential after extensive screening of microbial strains from pine tissues. The bacterium was found to biostimulate resistance in Pinus densiflora. Comprehensive analyses, including transcriptomics, qPCR assays, and high-performance liquid chromatography (HPLC), revealed that B. subtilis JCK-1398 significantly upregulates defense-related genes and stimulates pinoresinol production, a compound linked to resistance against nematodes. Treatment with B. subtilis JCK-1398 suppressed nematode migration and reduced nematode populations within pine tissues, effects attributed to the enhanced tree defense response. Field trials corroborated these findings, demonstrating a 72 % decrease in PWD incidence with aerial application of JCK-1398, confirming its potential for large-scale forest application. This biocontrol strategy, leveraging the stimulation of plant defense by B. subtilis JCK-1398, presents a promising and scalable, eco-friendly solution for managing PWD. Overall, this study provides new insights into the interactions between the bioagent, the host tree, and the pest nematode, offering an effective and sustainable approach to mitigate pine wilt disease., 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 © 2024 The Authors. Published by Elsevier B.V. All rights reserved.)
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- 2024
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7. Solute Carrier Family 2 Member 1 Gene Mutation Presenting as Adult-Onset Paroxysmal Exercise-Induced Dyskinesia Without Epilepsy.
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Hwang YS and Oh E
- Abstract
Competing Interests: The authors have no potential conflicts of interest to disclose.
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- 2024
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8. Dectin-1 induces TRPV1 sensitization and contributes to visceral hypersensitivity of irritable bowel syndrome in male mice.
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Zheng HN, Zhi YR, Su YS, Jiang JY, Zhang HZ, Cao F, Wang Y, Chi Y, and Zhang Y
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- Animals, Male, Mice, Disease Models, Animal, Fluconazole pharmacology, Ganglia, Spinal metabolism, Ganglia, Spinal drug effects, Glucans pharmacology, Mice, Inbred C57BL, Neurons metabolism, Neurons drug effects, Nystatin pharmacology, Trinitrobenzenesulfonic Acid, Visceral Pain metabolism, Irritable Bowel Syndrome metabolism, Lectins, C-Type metabolism, Mice, Knockout, TRPV Cation Channels metabolism
- Abstract
Background: Visceral hypersensitivity is considered the core pathophysiological mechanism that causes abdominal pain in patients with irritable bowel syndrome (IBS). Fungal dysbiosis has been proved to contribute to visceral hypersensitivity in IBS patients. However, the underlying mechanisms for Dectin-1, a major fungal recognition receptor, in visceral hypersensitivity are poorly understood. This study aimed to explore the role of Dectin-1 in visceral hypersensitivity and elucidate the impact of Dectin-1 activity on the function of transient receptor potential vanilloid type 1 (TRPV1)., Methods: Visceral hypersensitivity model was established by the intracolonic administration of 0.1 mL TNBS (130 μg/mL in 30% ethanol) in the male mice. Fluconazole and nystatin were used as fungicides. Laminarin, a Dectin-1 antagonist and gene knockout (Clec7a
-/- ) mice were used to interrupt the function of Dectin-1. Colorectal distension-electromyogram recording was performed to assess visceral sensitivity. Immunostaining experiment was performed to determine the localization of Dectin-1 in dorsal root ganglion (DRG) neurons. Calcium imaging study was performed to assay TRPV1-mediated calcium influx in acutely dissociated DRG neurons., Results: Pretreatment with fungicides, administration of laminarin or genetic deletion of Clec7a alleviated TNBS-induced visceral hypersensitivity in male mice. The expression of Dectin-1 was upregulated in the DRG and colon of TNBS-treated mice. Colocalization of Dectin-1 and TRPV1 was observed in DRG neurons. Importantly, pretreatment with curdlan, a Dectin-1 agonist, increased TRPV1-mediated calcium influx., Conclusions: Dectin-1 contributes to visceral hypersensitivity in IBS or in inflammatory bowel disease in remission and activation of Dectin-1 induces TRPV1 sensitization., Significance Statement: This work provides direct evidence for the functional regulation of TRPV1 channel by Dectin-1 activity, proposing a new mechanism underlying TRPV1 sensitization. Control of intestinal fungi might be beneficial for the treatment of refractory abdominal pain in patients with IBS or IBD in remission., (© 2024 European Pain Federation ‐ EFIC ®.)- Published
- 2024
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9. Advanced Li-S Battery Configuration Featuring Sulfur-Coated Separator and Interwoven rGO/CNT Fabric Current Collector.
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Chiu KC, Bhat AL, Yang CK, Chung SH, Tumilty N, and Su YS
- Abstract
The development of lithium-sulfur batteries (LSBs) marks a crucial milestone in advancing energy storage solutions essential for sustainable energy transitions. With high theoretical specific capacity, cost-effectiveness, and reduced ecological footprint, LSBs promise to enhance electric vehicle ranges, extend portable electronics' operational times, and stabilize grids integrated with renewable energy. However, challenges like complex processing, electrode instability, and poor cycling stability hinder their commercialization. This study introduces a novel battery design that addresses these issues by coating sulfur directly onto the separator instead of the current collector, demonstrating that active sulfur can be effectively utilized without being incorporated into the electrode structure. Using an interwoven substrate made from carbon nanotube (CNT) fabric adorned with reduced graphene oxide (rGO), this setup enhances manufacturing scalability, supports optimal sulfur utilization, and improves battery performance. The rGO decoration provides multiple highly conductive polysulfide trapping sites, enhancing active material reutilization, while the flexibility and mechanical strength of CNT fabric contribute to electrode integrity. This combination boosts electrical conductivity and polysulfide-capturing capability, effectively managing migrating sulfur species during charge-discharge cycles and mitigating sulfur loss and polysulfide shuttling. The results demonstrate superior cycling stability and efficiency, highlighting the potential of this approach in advancing LSB technology., (© 2024 The Author(s). Small published by Wiley‐VCH GmbH.)
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- 2024
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10. The mystique of epigenetic regulation: the remarkable case of a human noncoding RNA, nc886.
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Lee YS and Lee YS
- Abstract
nc886 is a regulatory noncoding RNA that is transcribed by RNA polymerase III (Pol III), is variably expressed in different biological contexts, and plays roles in inflammation and cancer. Epigenetic mechanisms play an intriguing role in regulating nc886 expression. As a maternally imprinted gene and metastable epiallele, nc866 exhibits polymorphic imprinting, with a methylation status that is influenced by environmental and biological factors. Consequently, the promoter DNA methylation status and the different resulting RNA expression levels of nc886 are associated with physiological and pathological conditions. In this review, we summarize the literature and explore the significance in relation to diverse roles of nc886.
- Published
- 2024
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11. Synergistic effect of periodontitis and C-reactive protein levels on mortality: NHANES 2001-2004.
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Han M, Lee W, Ahn S, Kang MH, Hwang HS, Kwon S, Kim Y, Lee J, Kim DK, Lim CS, Kim YS, and Lee JP
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- Humans, Male, Female, Middle Aged, Adult, Aged, Proportional Hazards Models, United States epidemiology, Risk Factors, Periodontitis mortality, Periodontitis blood, C-Reactive Protein metabolism, C-Reactive Protein analysis, Nutrition Surveys
- Abstract
Periodontitis is associated with elevated C-reactive protein (CRP) levels. Although the coexistence of periodontitis and elevated CRP levels may heighten the risk of mortality, previous studies have not confirmed their synergistic effect. Understanding this interaction is crucial for identifying potential interventions to reduce mortality risk in individuals with periodontitis. This study aimed to assess the synergistic effects of periodontitis and elevated CRP levels on mortality in 7,938 adult individuals who participated in the National Health and Nutrition Examination Study 2001-2004. The association of periodontitis status and CRP levels with mortality was assessed using a survey-weighted Cox model. The interactive effect was estimated; the synergistic effect of CRP levels and periodontitis status on mortality was assessed using the relative excess risk due to interaction (RERI). Periodontitis was diagnosed in 1,065 (13.4%) participants. Compared with the participants without periodontitis and possessing CRP levels of ≤ 0.5 mg/dL, those with periodontitis (hazard ratio [HR], 1.38) or CRP levels of > 0.5 mg/dL (HR 1.23) had higher HRs. The participants with both periodontitis and CRP levels of > 0.5 mg/dL had the highest HR of 2.01. The additive scale interactive effect of the periodontal status and CRP levels, measured using RERI 0.41 (-0.07, 0.95), was positive and nearly significant in the total population. The synergy between the periodontal status and CRP levels was more prominent in the participants aged ≥60 years than that in younger individuals. Periodontitis with high CRP levels may indicate a high mortality rate, indicating the importance of active monitoring and intensive management of periodontitis and inflammatory markers., Competing Interests: The authors have declared that no competing interests exist., (Copyright: © 2024 Han et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.)
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- 2024
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12. Qudit-based variational quantum eigensolver using photonic orbital angular momentum states.
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Kim B, Hu KM, Sohn MH, Kim Y, Kim YS, Lee SW, and Lim HT
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Solving the electronic structure problem is a notorious challenge in quantum chemistry and material science. Variational quantum eigensolver (VQE) is a promising hybrid classical-quantum algorithm for finding the lowest-energy configuration of a molecular system. However, it typically requires many qubits and quantum gates with substantial quantum circuit depth to accurately represent the electronic wave function of complex structures. Here, we propose an alternative approach to solve the electronic structure problem using VQE with a single qudit. Our approach exploits a high-dimensional orbital angular momentum state of a heralded single photon and notably reduces the required quantum resources compared to conventional multi-qubit-based VQE. We experimentally demonstrate that our single-qudit-based VQE can efficiently estimate the ground state energy of hydrogen (H
2 ) and lithium hydride (LiH) molecular systems corresponding to two- and four-qubit systems, respectively. We believe that our scheme opens a pathway to perform a large-scale quantum simulation for solving more complex problems in quantum chemistry and material science.- Published
- 2024
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13. Bioactivities of Quinic Acids from Vitex rotundifolia Obtained by Supercritical Fluid Extraction.
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Le DD, Jang YS, Truong V, Yu S, Dinh T, and Lee M
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Acyl-quinic acids (AQAs), present in various plants with many health benefits, are regarded as therapeutic agents in the prevention and treatment of chronic and cardiovascular diseases. The molecular network-guided identification of ten AQA compounds, two new ( 5 and 7 ) and eight known compounds, were isolated from V. rotundifolia L. f. by using a newly applied extraction method. Their structures were determined through spectroscopic means, reaction mixtures, and modified Mosher and PGME techniques. These compounds were assessed for their anti-inflammatory and antioxidant capabilities. Notably, compounds 1 , 3 , 4 , 6 , 8 , and 9 exhibited notable DPPH radical scavenging activity. In LPS-induced HT-29 cells, compounds 2 - 7 significantly inhibited IL-8 production. Furthermore, compounds 3 - 5 and 7 markedly suppressed NO production, while compounds 1 - 10 effectively inhibited IL-6 production in LPS-induced RAW264.7 cells. Western blot analyses revealed that compounds 3 - 5 , and 7 reduced iNOS and COX-2 expression, and compounds 2 - 5 , 7 , and 8 also diminished the expression levels of p38 MAPK phosphorylation. Docking studies demonstrated the active compounds' binding affinity with the IL-8, iNOS, COX-2, and p38 MAPK proteins through interactions with essential amino acids within the binding pockets of complexes. The findings suggest that compounds 1 , 3 , 4 , 6 , 8 , and 9 , and compounds 3 - 5 , and 7 , hold promise as potential therapeutic agents for treating antioxidative and inflammatory diseases, respectively.
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- 2024
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14. Fingolimod, an antagonist of sphingosine 1-phosphate, ameliorates Sjögren's syndrome by reducing the number of STAT3-induced germinal center B cells and increasing the number of Breg cells.
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Lee YS, Jhun J, Choi JW, Hwang SH, Woo JS, Lee KH, Yang SC, Lee AR, and Cho ML
- Abstract
Background: Sjögren's syndrome (SS) is an autoimmune disease caused by infiltrating lymphocytes. FTY720 affects the S1P signaling pathway, which plays a role in T and B cell migration from secondary lymphoid tissues to target organs. In this study, we investigate the regulatory mechanism of FTY720 in the context of SS., Method: FTY720 was given orally every day to NOD mice. The salivary flow rate (SFR) and blood glucose level were assayed every 3 weeks. Histopathological features were investigated at the end of the study. In vitro, FTY720 was added to mouse splenocytes, and changes in the lymphocyte subsets were assessed., Results: In vivo, FTY720 increased the SFR and reduced the blood glucose level. The salivary gland histological score and infiltration of the salivary glands by B and T cells were dramatically decreased. Furthermore, STAT expression in the salivary gland was decreased. In vitro, FTY720 inhibited Th17 cells, while increasing regulatory T (Treg) cells, respectively. Also, FTY720 decreased and increased the numbers of germinal center (GC) B cells and regulatory B cells (Breg cells), respectively. FTY720 decreased the IgG level in culture supernatants. Also, STAT3 activation was decreased by FTY720., Conclusion: Our results show the therapeutic potential of FTY720 in the context of SS; FTY720 prevents lymphocyte migration from secondary lymphoid organs to target organs., 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 © 2024. Published by Elsevier B.V.)
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- 2024
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15. The Versatile Roles of nc886, a Fascinating and Peculiar Regulatory Non-Coding RNA, in Cancer.
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Jang JJ, Kang D, Lee YS, and Lee YS
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- Animals, Humans, Carcinogenesis genetics, DNA Methylation, Promoter Regions, Genetic, Ribonuclease III metabolism, Ribonuclease III genetics, Gene Expression Regulation, Neoplastic, Neoplasms genetics, Neoplasms metabolism, RNA, Untranslated genetics, RNA, Untranslated metabolism
- Abstract
This review concerns nc886, a 101-nucleotide non-coding RNA (ncRNA). Because nc886 is transcribed by RNA polymerase III (Pol III) and contains a CpG island in its promoter region, its expression is regulated by several transcription factors and the DNA methylation status. These features drive nc886 expression in two opposing directions during tumorigenesis. The known function of nc886 is to bind to and modulate the activity of target proteins such as PKR, Dicer, and OAS1. By being differentially expressed during tumorigenesis and interacting with these proteins, nc886 plays a role in tumor surveillance, promotes or suppresses tumorigenesis, and influences the efficacy of cancer therapy. The multiple roles of nc886 have been well-documented in the literature. In this review, we have summarized this literature and critically discussed the roles and mechanisms of action of nc886 in various cancers.
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- 2024
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16. STAT3 blockade ameliorates LPS-induced kidney injury through macrophage-driven inflammation.
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Lee SH, Kim KH, Lee SM, Park SJ, Lee S, Cha RH, Lee JW, Kim DK, Kim YS, Ye SK, and Yang SH
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- Animals, Male, Mice, Cyclic S-Oxides pharmacology, Cyclic S-Oxides therapeutic use, Disease Models, Animal, Fibrosis, Mice, Inbred C57BL, Signal Transduction drug effects, Acute Kidney Injury chemically induced, Acute Kidney Injury pathology, Acute Kidney Injury drug therapy, Inflammation pathology, Inflammation drug therapy, Lipopolysaccharides pharmacology, Macrophages drug effects, Macrophages metabolism, STAT3 Transcription Factor metabolism
- Abstract
Background: Signal transducer and activator of transcription 3 (STAT3), a multifaceted transcription factor, modulates host immune responses by activating cellular response to signaling ligands. STAT3 has a pivotal role in the pathophysiology of kidney injury by counterbalancing resident macrophage phenotypes under inflammation conditions. However, STAT3's role in acute kidney injury (AKI), particularly in macrophage migration, and in chronic kidney disease (CKD) through fibrosis development, remains unclear., Methods: Stattic (a JAK2/STAT3 inhibitor, 5 mg/kg or 10 mg/kg) was administered to evaluate the therapeutic effect on LPS-induced AKI (L-AKI) and LPS-induced CKD (L-CKD), with animals sacrificed 6-24 h and 14 days post-LPS induction, respectively. The immune mechanisms of STAT3 blockade were determined by comparing the macrophage phenotypes and correlated with renal function parameters. Also, the transcriptomic analysis was used to confirm the anti-inflammatory effect of L-AKI, and the anti-fibrotic role was further evaluated in the L-CKD model., Results: In the L-AKI model, sequential increases in BUN and blood creatinine levels were time-dependent, with a marked elevation of 0-6 h after LPS injection. Notably, two newly identified macrophage subpopulations (CD11b
high F4/80low and CD11blow F4/80high ), exhibited population changes, with an increase in the CD11bhigh F4/80low population and a decrease in the CD11blow F4/80high macrophages. Corresponding to the FACS results, the tubular injury score, NGAL, F4/80, and p-STAT3 expression in the tubular regions were elevated. STAT3 inhibitor injection in L-AKI and L-CKD mice reduced renal injury and fibrosis. M2-type subpopulation with CD206 in CD11blow F4/80high population increased in the Stattic-treated group compared with that in the LPS-alone group in the L-AKI model. Additionally, STAT3 inhibitor reduced inflammation driven by LPS-stimulated macrophages and epithelial cells injury in the co-culture system. Transcriptomic profiling identified 3 common genes in the JAK-STAT, TLR, and TNF signaling pathways and 11 common genes in the LPS with macrophage response. The PI3K-AKT (IL-6, Akt3, and Pik3r1) and JAK-STAT pathways were determined as potential Stattic targets. Further confirmation through mRNA and protein expressions analyses showed that Stattic treatment reduced inflammation in the L-AKI and fibrosis in the L-CKD mice., Conclusions: STAT3 blockade effectively mitigated inflammation by retrieving the CD11blow F4/80high population, further emphasizing the role of STAT3-associated macrophage-driven inflammation in kidney injury., (© 2024. The Author(s).)- Published
- 2024
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17. High-Power Battery Electrodes Fabricated by Acupuncture-Inspired Microneedle Processing.
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Kang CY, Lin LY, Nguyen T, Chen CC, Chang JK, Lin TE, and Su YS
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Advancing battery electrode performance is essential for high-power applications. Traditional fabrication methods for porous electrodes, while effective, often face challenges of complexity, cost, and environmental impact. Inspired by acupuncture, here we introduce an eco-friendly and cost-effective microneedle process for fabricating lithium iron phosphate electrodes. This technique employs commercial cosmetic microneedle molds to create low-curvature holes on electrode surfaces, significantly enhancing electrolyte infiltration and ion transport kinetics. The punctured electrodes were prepared and characterized, with comparisons to pristine electrodes conducted using scanning electron microscopy, 3D metallurgical microscopy, and detailed electrochemical evaluations. Our results show that the microneedle-processed electrodes exhibit superior rate performance and diffusion properties. Simulations and experimental data reveal that the low-curvature holes reduce Li-ion concentration polarization and improve Li-ion transport within the electrode. This enhancement leads to higher specific capacities and better rate capabilities in the punctured electrodes. The findings highlight the potential of this innovative microneedle technique for large-scale production of high-performance electrodes, offering a promising avenue for the development of high-power-density batteries.
- Published
- 2024
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18. Carthamus tinctorius seeds- Taraxacum coreanum combination attenuates scopolamine-induced memory deficit through regulation of inflammatory response and cholinergic function.
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He MT, Shin YS, Kim HY, and Cho EJ
- Abstract
Background/objectives: There is growing interest in herbal medicines for managing age-related diseases, such as Alzheimer's and Parkinson's. Safflower seeds ( Carthamus tinctorius L. seeds, CTS) and dandelions ( Taraxacum coreanum , TC) are widely used to treat bone- or inflammation-related diseases in Oriental countries. This study investigated the protective effect of the CTS-TC combination on scopolamine (Sco)-induced memory deficits through inflammatory response and cholinergic function. Moreover, marker components such as serotonin, N -( p -coumaroyl) serotonin, N -feruloylserotonin, chlorogenic acid, and chicoric acid in the CTS-TC combination were analyzed for their potential benefits on memory function., Materials/methods: Water extracts of CTS, TC, and the CTS-TC combination at various ratios (4:1, 1:1, and 1:4) (100 mg/kg) were orally administered to mice for 14 days. Sco (1 mg/kg) was intraperitoneally injected into the mice before each behavioral test. T-maze and novel object recognition tests were conducted to monitor behavioral changes after the treatment. Western blotting was performed to detect protein expression. In addition, the presence of 5 biomarkers, serotonin, N -( p -coumaroyl) serotonin, N -feruloylserotonin, chlorogenic acid, and chicoric acid, was analyzed using high-performance liquid chromatography (HPLC)., Results: Behavioral tests showed that the CTS-TC combination enhanced memory function in Sco-injected mice. Inflammation-related proteins (inducible nitric oxide synthase, cyclooxygenase-2, and glial fibrillary acidic protein) were downregulated after treatment with the CTS-TC combination. The acetylcholinesterase protein expression was also downregulated. HPLC analysis revealed that N -feruloylserotonin and chicoric acid were the predominant components, followed by N -( p -coumaroyl) serotonin, chlorogenic acid, and serotonin., Conclusion: These findings suggest that the CTS-TC combination protects against Sco-induced memory deficits by inhibiting inflammatory responses and cholinergic dysfunction. N -feruloylserotonin and chicoric acid, along with N -( p -coumaroyl) serotonin, chlorogenic acid, and serotonin, might be biomarkers for the CTS-TC combination, and their effects on memory protection warrant further study., Competing Interests: Conflict of Interest: The authors declare no potential conflicts of interests., (©2024 The Korean Nutrition Society and the Korean Society of Community Nutrition.)
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- 2024
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19. Unveiling the role of transgelin as a prognostic and therapeutic target in kidney fibrosis via a proteomic approach.
- Author
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Kwon S, Cheon S, Kim KH, Seo A, Bae E, Lee JW, Cha RH, Hwang JH, Kim YC, Kim DK, Kim YS, Han D, and Yang SH
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- Animals, Humans, Rats, Mice, Male, Renal Insufficiency, Chronic metabolism, Renal Insufficiency, Chronic pathology, Kidney pathology, Kidney metabolism, Prognosis, Disease Models, Animal, Proteome metabolism, Oxidative Stress, Fibrosis, Proteomics methods, Microfilament Proteins metabolism, Microfilament Proteins genetics, Muscle Proteins metabolism, Muscle Proteins genetics, Biomarkers
- Abstract
Chronic kidney disease (CKD) progression involves tubulointerstitial fibrosis, a process characterized by excessive extracellular matrix accumulation. To identify potential biomarkers for kidney fibrosis, we performed mass spectrometry-based proteomic profiling of human kidney tubular epithelial cells and kidney tissue from a 5/6 nephrectomy rat model. Multidisciplinary analysis across kidney fibrosis models revealed 351 differentially expressed proteins associated with kidney fibrosis, and they were enriched in processes related to the extracellular matrix, kidney aging, and mitochondrial functions. Network analysis of the selected proteins revealed five crucial proteins, of which transgelin emerged as a candidate protein that interacts with known fibrosis-related proteins. Concordantly, the gene expression of transgelin in the kidney tissue from the 5/6 nephrectomy model was elevated. Transgelin expression in kidney tissue gradually increased from intermediate to advanced fibrosis stages in 5/6 Nx rats and mice with unilateral ureteral obstruction. Subsequent validation in kidney tissue and urine samples from patients with CKD confirmed the upregulation of transgelin, particularly under advanced disease stages. Moreover, we investigated whether blocking TAGLN ameliorated kidney fibrosis and reduced reactive oxygen species levels in cellular models. In conclusion, our proteomic approach identified TAGLN as a potential noninvasive biomarker and therapeutic target for CKD-associated kidney fibrosis, suggesting its role in modulating mitochondrial dysfunction and oxidative stress responses., (© 2024. The Author(s).)
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- 2024
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20. Classification of the L-, H-mode, and plasma-free state: Convolutional neural networks and variational autoencoders on the edge reflectometer for KSTAR.
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Kim B, Seo SH, Oh DK, and Na YS
- Abstract
Classifying and monitoring the L-, H-mode, and plasma-free state are essential for the stable operational control of tokamaks. Edge reflectometry measures plasma density profiles, but the large volume of data and complexity in reconstruction pose significant challenges. There is a need for efficient methods to analyze complex reflectometer data in real-time, which can be addressed using advanced computational techniques. Here, we show that machine learning (ML) techniques can classify discharge states using raw signal data from an edge reflectometer installed on the Korea Superconducting Tokamak Advanced Research. The deep convolutional neural network models achieved classification accuracy of up to 99% when using 2D spectrogram inputs, demonstrating a significant improvement over 1D raw signal inputs. Additionally, the variational autoencoder model effectively clustered the discharge states in the latent space without any label information, further validating the model's capability to classify discharge states. These results suggest that the ML model can effectively handle the complexity of reflectometer data and accurately classify plasma discharge states. This approach not only facilitates real-time diagnosis but also reduces the need for manual data processing., (© 2024 Author(s). Published under an exclusive license by AIP Publishing.)
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- 2024
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21. Retraction Note: The moderating role of leadership on the relationship between green supply chain management, technological advancement, and knowledge management in sustainable performance.
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Chen SL, Su YS, Tufail B, Lam VT, Phan TTH, and Ngo TQ
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- 2024
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22. Retraction Note: The impact of environmental knowledge and green supply chain practices in improving sustainable energy production: the moderating role of green behavior and green leadership.
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Chen SL, Su YS, Diep GL, Sivanandan P, Sadiq M, and Phan TTH
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- 2024
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23. Successful treatment of cutaneous siderosis using a 1064-nm Nd:YAG picosecond laser following intravenous iron extravasation: A case report.
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Lee W, Eun YS, Kim JY, Lee SH, Kim Y, and Kim JE
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- Humans, Female, Extravasation of Diagnostic and Therapeutic Materials etiology, Extravasation of Diagnostic and Therapeutic Materials therapy, Siderosis etiology, Siderosis therapy, Iron administration & dosage, Middle Aged, Lasers, Solid-State therapeutic use
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- 2024
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24. Establishment and Validation of a Risk Prediction Model for Non-Invasive Ventilation Failure After Birth in Premature Infants with Gestational Age < 32 Weeks.
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Shen F, Yu MY, Rong H, Guo Y, Zou YS, Cheng R, and Yang Y
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- Humans, Infant, Newborn, Retrospective Studies, Female, Risk Assessment, Male, Respiratory Distress Syndrome, Newborn therapy, Respiratory Distress Syndrome, Newborn diagnosis, Risk Factors, Noninvasive Ventilation, Gestational Age, Infant, Premature, Treatment Failure
- Abstract
Objectives: This study was performed to construct and validate a risk prediction model for non-invasive ventilation (NIV) failure after birth in premature infants with gestational age < 32 weeks., Methods: The data were derived from the multicenter retrospective study program - Jiangsu Provincial Neonatal Respiratory Failure Collaboration Network from Jan 2019 to Dec 2021. The subjects finally included were preterm infants using NIV after birth with gestational age less than 32 weeks and admission age within 72 h. After screening by inclusion and exclusion criteria, 1436 babies were subsequently recruited in the study, including 1235 infants in the successful NIV group and 201 infants in the failed NIV group., Results: (1) Gestational age, 5 min Apgar, Max FiO
2 during NIV, and FiO2 fluctuation value during NIV were selected by univariate and multivariate analysis. (2) The area under the curve of the prediction model was 0.807 (95% CI: 0.767-0.847) in the training set and 0.825 (95% CI: 0.766-0.883) in the test set. The calibration curve showed good agreement between the predicted probability and the actual observed probability (Mean absolute error = 0.008 for the training set; Mean absolute error = 0.012 for the test set). Decision curve analysis showed good clinical validity of the risk model in the training and test cohorts., Conclusion: This model performed well on dimensions of discrimination, calibration, and clinical validity. This model can serve as a useful tool for neonatologists to predict whether premature infants will experience NIV failure after birth., (© 2024. The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature.)- Published
- 2024
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25. Liberation from Mechanical Ventilation in Critically Ill Patients: Korean Society of Critical Care Medicine Clinical Practice Guidelines.
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Ha TS, Oh DK, Lee HJ, Chang Y, Jeong IS, Sim YS, Hong SK, Park S, Suh GY, and Park SY
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Background: Successful liberation from mechanical ventilation is one of the most crucial processes in critical care, because it is the first step through which a respiratory failure patient begins to transition out of the intensive care unit, and return to normal life. Therefore, when devising appropriate strategies for removing mechanical ventilation, it is essential to consider scientific and systematic approaches, as well as the individual experiences of healthcare professionals. Recently, numerous studies have investigated methods and tools to identify when mechanically ventilated patients are ready to breathe on their own. The Korean Society of Critical Care Medicine therefore provides these recommendations to clinicians for liberation from the ventilator., Methods: Meta-analyses and comprehensive syntheses were used to thoroughly review, compile, and summarize the complete body of relevant evidence. All studies were meticulously assessed using the Grading of Recommendations, Assessment, Development, and Evaluation (GRADE) method, and the outcomes were presented succinctly as evidence profiles. These evidence syntheses were discussed by a multidisciplinary committee of experts in mechanical ventilation, who then developed and approved the recommendations., Results: Recommendations for nine questions on ventilator liberation about Population, Intervention, Comparator, and Outcome (PICO) are presented in this document. This guideline presents seven conditional recommendations, one expert consensus recommendation, and one conditional deferred recommendation., Conclusion: We developed these clinical guidelines for mechanical ventilation liberation to provide meaningful recommendations. These guidelines reflect the best treatment for patients seeking liberation from mechanical ventilation.
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- 2024
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26. Effects of red-light irradiation and melatonininjection on the antioxidant capacity and occurrence of apoptosis in abalones (Haliotis discus hannai) subjected to thermal stress.
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Kwon YH, Kim JA, Park YS, Kim JH, and Choi CY
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- Animals, DNA Damage, Melatonin pharmacology, Apoptosis drug effects, Antioxidants metabolism, Oxidative Stress drug effects, Light, Superoxide Dismutase metabolism, Gastropoda radiation effects, Gastropoda drug effects, Gastropoda metabolism, Glutathione Peroxidase metabolism, Glutathione Peroxidase genetics
- Abstract
High ocean temperatures caused by global warming induce oxidative stress in aquatic organisms. Melatonin treatment and irradiation using red light-emitting diodes (LEDs) have been reported to reduce oxidative stress in a few aquatic organisms. However, the effects of red LED irradiation and melatonin injection on the antioxidant capacity and degree of apoptosis in abalones, which are nocturnal organisms, have not yet been reported. In this study, we compared the expression levels of antioxidant enzymes, total antioxidant capacity, and the degree of apoptosis in abalones subjected to red LED irradiation and melatonin treatment. The results revealed that at high water temperatures (25 °C), the mRNA expression levels of the superoxide dismutase (SOD) and glutathione peroxidase (GPx) genes and the antioxidant activity of SOD decreased in abalones in the red-LED irradiated and melatonin-treated groups compared with those in abalones in the control group. Although high water temperatures induced DNA damage in the abalone samples, the degree of apoptosis was lower in the red-LED irradiated and melatonin-treated groups than in the control group. Overall, the abalones in the melatonin-treated and red-LED irradiated groups showed reduced oxidative stress and increased antioxidant enzyme levels under thermal stress compared with those in the control group. Therefore, red LED irradiation is a promising alternative to melatonin treatment, which is difficult to administer continuously for a long time, for protecting abalones from oxidative stress., 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 © 2024 Elsevier Inc. All rights reserved.)
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- 2024
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27. SARS-CoV-2 spike aggravates lupus nephritis and lung fibrosis in systemic lupus erythematosus.
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Lee YS, Woo JS, Jhun J, Choi JW, Lee AR, Lee KH, Choi H, Park SH, and Cho ML
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- Animals, Mice, Pulmonary Fibrosis etiology, Pulmonary Fibrosis immunology, Pulmonary Fibrosis pathology, Mice, Inbred MRL lpr, Female, Splenomegaly etiology, Angiotensin-Converting Enzyme 2 genetics, Angiotensin-Converting Enzyme 2 metabolism, Spike Glycoprotein, Coronavirus immunology, Lupus Nephritis pathology, Lupus Nephritis immunology, COVID-19 immunology, COVID-19 complications, Autoantibodies blood, Mice, Inbred BALB C, SARS-CoV-2, Lupus Erythematosus, Systemic complications, Lupus Erythematosus, Systemic immunology, Disease Models, Animal, Mice, Knockout
- Abstract
Objective: COVID-19 induces the development of autoimmune diseases, including SLE, which are characterised by inflammation, autoantibodies and thrombosis. However, the effects of COVID-19 on SLE remain unclear., Methods: We investigated the effects of COVID-19 on SLE development and progression in three animal models. Plasmids encoding SARS-CoV-2 spike protein and ACE2 receptor were injected into R848-induced BALB/C lupus mice, R848-induced IL-1 receptor antagonist knockout (KO) lupus mice and MRL/lpr mice. Serum levels of albumin and autoantibodies, lymphocyte phenotypes and tissue histology were evaluated., Results: In R848-induced BALB/C lupus mice, the SARS-CoV-2 spike protein increased autoantibody and albumin levels compared with vehicle and mock treatments. These mice also exhibited splenomegaly, which was further exacerbated by the spike protein. Flow cytometric analysis revealed elevated T helper 1 cell counts, and histological analysis indicated increased levels of the fibrosis marker protein α-smooth muscle actin. In KO mice, the spike protein induced splenomegaly, severe kidney damage and pronounced lung fibrosis. In the MRL/lpr group, spike protein increased the serum levels of autoantibodies, albumin and the thrombosis marker chemokine (C-X-C motif) ligand 4., Conclusion: COVID-19 accelerated the development and progression of lupus by inducing autoantibody production, fibrosis and thrombosis., Competing Interests: Competing interests: None declared., (© Author(s) (or their employer(s)) 2024. Re-use permitted under CC BY-NC. No commercial re-use. See rights and permissions. Published by BMJ.)
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- 2024
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28. Editorial overview: Chemical biotechnology paving the way for a sustainable future.
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Hasunuma T and Jin YS
- Abstract
Competing Interests: Declaration of Competing Interest There is no conflict of interest.
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- 2024
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29. Similarity analyses of causative viruses for chronic obstructive pulmonary disease and asthma exacerbations : Author.
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An TJ, Lee J, Shin M, Yoo KH, Hwang YI, Min KH, Kim DK, Sim YS, Jung JY, and Rhee CK
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- Humans, Retrospective Studies, Republic of Korea epidemiology, Respiratory Tract Infections virology, Respiratory Tract Infections epidemiology, Disease Progression, Male, Pulmonary Disease, Chronic Obstructive epidemiology, Pulmonary Disease, Chronic Obstructive virology, Asthma epidemiology, Asthma virology, Seasons
- Abstract
Background: The representativeness of cohort studies compared to nationwide data is a major concern. This study evaluated the similarity and seasonality of causative respiratory viruses for chronic obstructive pulmonary disease (COPD) and asthma exacerbations between retrospective multicenter cohort study and nationwide data., Methods: We compared data from the retrospective multicenter cohort study with Korean Influenza and Respiratory Surveillance System data between 2015 and 2018. Correlation, dynamic time warping (DTW), and seasonal autoregressive integrated moving average (SARIMA) analyses were performed., Results: Spearman correlation coefficients [ρ] indicated very strong (respiratory syncytial virus [RSV] [ρ = 0.8458] and influenza virus [IFV] [ρ = 0.8272]), strong (human metapneumovirus [HMPV] [ρ = 0.7177] and parainfluenza virus [PIV] [ρ = 0.6742]), and moderate (rhinovirus [RV] [ρ = 0.5850] and human coronavirus [HCoV] [ρ = 0.5158]) correlations. DTW analyses showed moderate (PIV) and high (IFV, RSV, and HMPV) synchronicity between the two datasets, while RV and HCoV showed low synchronicity. SARIMA analyses revealed 12-month seasonality for IFV, RSV, PIV, and HMPV. The peak season was winter for RSV and IFV, spring to summer for PIV, and spring for HMPV., Conclusions: This was the first study to report the synchronicity between a retrospective multicenter cohort study of viruses that can cause COPD or asthma exacerbations and nationwide surveillance system data., (© 2024. The Author(s).)
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- 2024
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30. Baseline CT radiomics features to predict pathological complete response of advanced esophageal squamous cell carcinoma treated with neoadjuvant chemotherapy using paclitaxel and cisplatin.
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Ou J, Zhou HY, Qin HL, Wang YS, Gou YQ, Luo H, Zhang XM, and Chen TW
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Purpose: To develop a CT radiomics model to predict pathological complete response (pCR) of advanced esophageal squamous cell carcinoma (ESCC) toneoadjuvant chemotherapy using paclitaxel and cisplatin., Materials and Methods: 326 consecutive patients with advanced ESCC from two hospitals undergoing baseline contrast-enhanced CT followed by neoadjuvant chemotherapy using paclitaxel and cisplatin were enrolled, including 115 patients achieving pCR and 211 patients without pCR. Of the 271 cases from 1st hospital, 188 and 83 cases were randomly allocated to the training and test cohorts, respectively. The 55 patients from a second hospital were assigned as an external validation cohort. Region of interest was segmented on the baseline thoracic contrast-enhanced CT. Useful radiomics features were generated by dimension reduction using least absolute shrinkage and selection operator. The optimal radiomics features were chosen using support vector machine (SVM). Discriminating performance was assessed with area under the receiver operating characteristic curve (ROC) and F-1score. The calibration curves and Brier score were used to evaluate the predictive accuracy., Results: Eight radiomics features were selected to create radiomics models related to pCR of advanced ESCC (P-values < 0.01 for both the training and test cohorts). SVM model showed the best performance (AUCs = 0.929, 0.868 and 0.866, F-1scores = 0.857, 0.847 and 0.737 in the training, test and external validation cohorts, respectively). The calibration curves and Brier scores indicated goodness-of-fit and its great predictive accuracy., Conclusion: CT radiomics models could well help predict pCR of advanced ESCC, and SVM model could be a suitable predictive model., 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 © 2024 Elsevier B.V. All rights reserved.)
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- 2024
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31. [Characteristics of acupoint effects on inflammation and neuro-immune interaction].
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Zhang ZY, Wan HY, Su YS, He W, and Jing XH
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- Humans, Animals, Acupuncture Points, Inflammation immunology, Inflammation therapy, Acupuncture Therapy, Neuroimmunomodulation
- Abstract
A large number of studies have confirmed the anti-inflammatory effects of acupuncture, and some of the mechanisms and pathways regulating inflammatory response have been revealed. However, most of these researches focused on the effect of acupuncture on systemic anti-inflammation, and there is no consensus about the effect characteristics of different acupoints on regulating inflammatory response. It is noteworthy that increasing attention and exploration have been paid to the neuro-immune interactions and regulation of immune-inflammatory homeostasis. Importantly, the understanding of local neuroimmune regulation of non-immune organs has been deepening, which was known as the regional immunity. This new concept lays a scientific foundation for elucidating the characteristics of acupoints on the inflammation, especially the modulation of target visceral organs by the relevant acupoint stimulation. In this paper, the local effects (e.g. activating regional nerve components to induce local neuroimmuno-inflammatory regulation, etc), target visceral organ effects (e.g. regulating activities of visceral resident immune cells to initiate regional immunity regulation mediated by locally resident lymphocytes to promote inflammatory response degradation and to restore the homeostasis of regional immunity in the internal organs, via somato-visceral neuro-segmental connection, etc.) and systemic anti-inflammatory effects (e.g. regulating cholinergic anti-inflammatory pathway, including activating the vagus nerve to exert systemic anti-inflammatory effects through neuroimmune regulatory network, etc.) of acupoint stimulation were analyzed from different levels of neuroimmunological regulation, so as to provide new insights for clarifying the role of acupoints in improving inflammatory diseases.
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- 2024
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32. Impact of Quorum Sensing on the Virulence and Survival Traits of Burkholderia plantarii .
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Kang M, Lee D, Mannaa M, Han G, Choi H, Lee S, Lim GH, Kim SW, Kim TJ, and Seo YS
- Abstract
Quorum sensing (QS) is a mechanism by which bacteria detect and respond to cell density, regulating collective behaviors. Burkholderia plantarii , the causal agent of rice seedling blight, employs the LuxIR-type QS system, common among Gram-negative bacteria, where LuxI-type synthase produces QS signals recognized by LuxR-type regulators to control gene expression. This study aimed to elucidate the QS mechanism in B. plantarii KACC18965. Through whole-genome analysis and autoinducer assays, the plaI gene, responsible for QS signal production, was identified. Motility assays confirmed that C8-homoserine lactone (C8-HSL) serves as the QS signal. Physiological experiments revealed that the QS-defective mutant exhibited reduced virulence, impaired swarming motility, and delayed biofilm formation compared to the wild type. Additionally, the QS mutant demonstrated weakened antibacterial activity against Escherichia coli and decreased phosphate solubilization. These findings indicate that QS in B. plantarii significantly influences various pathogenicity and survival traits, including motility, biofilm formation, antibacterial activity, and nutrient acquisition, highlighting the critical role of QS in pathogen virulence and adaptability.
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- 2024
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33. Advanced nanomedicines for the treatment of age-related macular degeneration.
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Kwon YS and Han Z
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- Humans, Nanoparticles chemistry, Nanoparticles therapeutic use, Drug Delivery Systems, Animals, Macular Degeneration drug therapy, Nanomedicine
- Abstract
The critical and unmet medical need for novel therapeutic advancements in the treatment of age-related macular degeneration (AMD) cannot be overstated, particularly given the aging global population and the increasing prevalence of this condition. Current AMD therapy involves intravitreal treatments that require monthly or bimonthly injections to maintain optimal efficacy. This underscores the necessity for improved approaches, prompting recent research into developing advanced drug delivery systems to prolong the intervals between treatments. Nanoparticle-based therapeutic approaches have enabled the controlled release of drugs, targeted delivery of therapeutic materials, and development of smart solutions for the harsh microenvironment of diseased tissues, offering a new perspective on ocular disease treatment. This review emphasizes the latest pre-clinical treatment options in ocular drug delivery to the retina and explores the advantages of nanoparticle-based therapeutic approaches, with a focus on AMD, the leading cause of irreversible blindness in the elderly.
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- 2024
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34. Framingham risk score is a useful indicator of posttransplant cardiovascular events and survival among Korean kidney transplant recipients: a nationwide, prospective cohort study.
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Lee J, Chang HS, Mo H, Jung IM, Weon B, Kwon S, Lim CS, Kim YS, Lee SH, Lee YH, Lee JH, Yang J, Kim MS, and Lee JP
- Abstract
Background: Cardiovascular disease is an important risk factor for mortality among kidney transplant recipients. In this study, we aimed to investigate the association between cardiovascular risk score at kidney transplantation and long-term outcomes of patients., Methods: In this prospective, observational cohort study, we enrolled kidney transplant recipients who participated in the Korean Organ Transplantation Registry and underwent transplantation between April 2014 and December 2019. The cardiovascular risk status of kidney transplant recipients was assessed using the Framingham risk score. All-cause mortality, major adverse cardiovascular events, allograft failure, estimated glomerular filtration rates (eGFRs), and composite outcomes were evaluated after kidney transplantation., Results: Of the 4,682 kidney transplant recipients, 96 died during 30.7 ± 19.1 months of follow-up. The Kaplan-Meier survival analysis results showed that high Framingham risk scores were associated with all-cause mortality, major adverse cardiovascular events, and composite outcomes. According to the multivariable Cox analysis, high Framingham risk scores were associated with an increased risk of mortality (hazard ratio [HR], 3.20; 95% confidence interval [CI], 1.30-7.91), major adverse cardiovascular events (HR, 8.43; 95% CI, 2.41-29.52), and composite outcomes (HR, 2.05; 95% CI, 1.19-3.46). The eGFRs after transplantation were significantly higher among patients in the low Framingham risk score group (p < 0.001). However, Framingham risk scores were not associated with graft loss or rapid decline in eGFRs., Conclusion: The Framingham risk score is a useful indicator of cardiovascular events, mortality, and kidney function after kidney transplantation.
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- 2024
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35. The Regulatory Roles of Inflammation and Inflammasomes in Liver Diseases.
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Yi YS
- Subjects
- Humans, Animals, Immunity, Innate, Inflammasomes metabolism, Inflammation metabolism, Inflammation immunology, Inflammation pathology, Liver Diseases immunology, Liver Diseases metabolism, Liver Diseases pathology
- Abstract
Inflammation is an innate immune response that protects our body from various pathogens and cellular dangers [...].
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- 2024
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36. Implications of Global Lung Function Initiative Spirometry Reference Equations in Northeast Asian Patients With COPD.
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Choi JY, Lee CH, Joo H, Sim YS, Lee J, Lee H, Yoo KH, Park SJ, Na JO, and Khor YH
- Abstract
Background: Accurate spirometry interpretation is critical in the diagnosis and management of COPD. With increasing efforts for a unified approach by the Global Lung Function Initiative (GLI), this study evaluated the application of race-specific 2012 GLI and race-neutral 2022 GLI reference equations compared with Choi's reference equations, which is derived and widely used in South Korea, for spirometry interpretation in Northeast Asian patients with COPD., Research Question: What are the effects of applying race-specific 2012 GLI, race-neutral 2022 GLI, and Choi's reference equations on the diagnosis, severity grade, and clinical outcome associations of COPD?, Study Design and Methods: Serial spirometry data from the Korea COPD Subgroup Study (KOCOSS) consisting of 3,477 patients were used for reanalysis using 2012 GLI, 2022 GLI, and Choi's reference equations. The COPD diagnosis and severity categorization, associations with disease manifestations and health outcomes, and longitudinal trajectories of lung function were determined., Results: Although there was strong concordance in COPD diagnosis comparing 2012 GLI, and 2022 GLI reference equations with Choi's reference equations, a notable portion of patients were reclassified to milder disease severity (17.0% and 23.4% for 2012 GLI and 2022 GLI reference equations, respectively). Relationships between FEV
1 % predicted values calculated using 2012 GLI, 2022 GLI, and Choi's equations with clinical outcomes including dyspnea severity, exercise capacity, health-related quality of life, and frequency of exacerbations remain consistently significant. Similar annual decline rates of FEV1 and FVC % predicted were observed among the reference equations used, except for slower annual decline rate of FEV1 in Choi's equation compared with 2022 GLI race-neutral equation., Interpretation: Application of GLI reference equations for spirometry interpretation in Northeast Asian patients with COPD has potential implications on disease severity grade for clinical management and trial participation, and maintains consistent significant relationships with key disease outcomes., Competing Interests: Financial/Nonfinancial Disclosures None declared., (Copyright © 2024 American College of Chest Physicians. Published by Elsevier Inc. All rights reserved.)- Published
- 2024
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37. Impact of water temperature on oxidative stress and intestinal microbiota in pearl-spot chromis, Chromis notata (Temminck & Schlegel, 1843).
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Kim JA, Park YS, Kim JH, and Choi CY
- Abstract
Water temperature is an abiotic factor influencing fish metabolism and physiological responses. As poikilothermic creatures, fish are notable sensitivity to fluctuations in water temperature, which also significantly influences intestinal microbial proliferation. This study aimed to investigate the impact of both low (8 °C) and high (28 °C) water temperatures on oxidative stress and the intestinal microbiota of Chromis notata, a species that has recently migrated northward owing to changes in sea water temperature. Laboratory experiments were conducted to assess changes in superoxide dismutase (SOD), catalase (CAT), and lysozyme activities, as well as changes in the abundance and diversity of intestinal microbiota. The activities of antioxidant enzymes, specifically SOD and CAT, in C. notata exposed to low and high temperatures, showed an increase compared to the control group (maintained at 18 °C). Moreover, liver H
2 O2 levels exhibited a significant increase over time. Conversely, plasma lysozyme activity significantly decreased in groups subjected to low and high water temperatures compared to the control group. Analyzing changes in the intestinal microbiota, we observed an increase in the proportion of Firmicutes but a decrease in Proteobacteria, which are known for their role in immune enhancement, in C. notata exposed to both low and high water temperatures. We propose that alterations in water temperature impact the antioxidant enzyme activity of C. notata, leading to compromised immune responses and disruption of the biological balance of the intestinal microbiota, potentially affecting the host's survival., 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 © 2024. Published by Elsevier Inc.)- Published
- 2024
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38. Recent Progress of Photoswitchable Fluorescent Diarylethenes for Bioimaging.
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Qin KX, Su YS, Zhu MQ, and Li C
- Abstract
Photochromic diarylethene has attracted broad research interest in optical applications owing to its excellent fatigue resistance and unique bistability. Photoswitchable fluorescent diarylethene become a powerful molecular tool for fluorescence imaging recently. Herein, the recent progress on photoswitchable fluorescent diarylethenes in bioimaging is reviewed. We summarize the structures and properties of diarylethene fluorescence probes and emphatically introduce their applications in bioimaging as well as super-resolution imaging. Additionally, we highlight the current challenges in practical applications and provide the prospects of the future development directions of photoswitchable fluorescent diarylethene in the field of bioimaging. This comprehensive review aims to stimulate further research into higher-performance photoswitchable fluorescent molecules and advance their progress in biological application., (© 2024 Wiley-VCH GmbH.)
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- 2024
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39. Wet Mechanochemical Synthesis of BH 4 -Substituted Lithium Argyrodites.
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Han JH, Shin Y, Lee YJ, Ahn S, Lee YS, Yi KW, and Cho YW
- Abstract
In all-solid-state batteries, a solid electrolyte with high ionic conductivity is required for fast charging, uniform lithium deposition, and increased cathode capacity. Lithium argyrodite with BH
4 - substitution has promising potential due to its higher ionic conductivity compared to argyrodites substituted with halides. In this study, Li5.25 PS4.25 (BH4 )1.75 , characterized by a high ionic conductivity of 13.8 mS cm-1 at 25 °C, is synthesized via wet ball-milling employing o-xylene. The investigation focused on optimizing wet ball-milling parameters such as ball size, xylene content, drying temperature, as well as the amount of BH4 - substitution in argyrodite. An all-solid-state battery prepared using Li5.25 PS4.25 (BH4 )1.75 as the electrolyte and LiNbO3 coated NCM811 as the cathode exhibits an initial coulombic efficiency of 90.2% and maintains 93.9% of its initial capacity after 100 cycles at fast charging rate (5C). It is anticipated that the application of this wet mechanochemical synthesis will contribute further to the commercialization of all-solid-state batteries using BH4 -substituted argyrodites., (© 2024 The Author(s). Small Methods published by Wiley‐VCH GmbH.)- Published
- 2024
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40. Safety and impact of the Mediterranean diet in patients with chronic kidney disease: a pilot randomized crossover trial.
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Kwon YJ, Joo YS, Yun HR, Lim LR, Yang J, Lee HS, Kim HM, Lee H, Lee JE, and Lee JW
- Abstract
Introduction: Emerging evidence highlights the potential advantages of the Mediterranean diet (MD) in preserving kidney function and slowing chronic kidney disease (CKD) progression. However, interventional studies on the MD are scarce in East Asian populations., Methods: This randomized crossover trial aimed to assess the safety and short-term impact of the Mediterranean Proper Optimal Balance (MEDi-POB) diet in Korean patients with stage 3-4 CKD. Kidney function was assessed using the estimated glomerular filtration rate, which was calculated using the CKD Epidemiology Collaboration equation. Fifty patients with CKD were randomly assigned to two groups, each starting with a different 4-week intervention, followed by a 4-week washout period, followed by a switch to the other 4-week intervention. During the MEDi-POB intervention, patients received home delivery of meals twice daily, 5 days a week, while the control intervention comprised a conventional diet. Forty-six patients successfully completed the entire 12-week trial. Paired t -tests were conducted to assess mean differences between the two groups. A linear mixed model was used to adjust for sequence and period., Results: Dietary fat, fiber, and niacin intake were significantly higher following the MEDi-POB diet than following the control diet ( p = 0.001 for fat, p < 0.001 for fiber, and p = 0.007 for niacin). The MEDi-POB diet also yielded slightly increased total CO
2 levels ( p = 0.043), indicating effective management of metabolic acidosis. Conversely, sodium and copper intake were significantly lower with the MEDi-POB diet ( p = 0.032 and p = 0.037, respectively). Caloric intake increased, but body mass index slightly decreased from baseline after consuming the MEDi-POB diet. Dietary potassium intake exhibited a non-significant increase ( p = 0.053), and no significant changes in serum ( p = 0.883) and urine potassium levels ( p = 0.087) occurred. Kidney function remained well-preserved following the MEDi-POB diet., Conclusion: These results indicate that the MEDi-POB diet is safe even in patients with advanced CKD, as it does not adversely affect serum and urine potassium levels and helps maintain kidney function., Competing Interests: H-MK serves as the Director of the Nutrition R&D Institute, MEDI.SOLA Co., Ltd. and J-WL is the Medical Advisor at MEDI.SOLA Co., Ltd. The remaining 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 Kwon, Joo, Yun, Lim, Yang, Lee, Kim, Lee, Lee and Lee.)- Published
- 2024
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41. Dual-dispatch protocols and return of spontaneous circulation in patients with out-of-hospital cardiac arrest: a nationwide observational study.
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Lee SH, Hong WP, Kim YS, Park J, and Lim HJ
- Abstract
Objective: The Korean National Fire Agency conducted a pilot project examining Advanced Life Support (ALS) protocols, including epinephrine administration, to improve survival among patients suffering out-of-hospital cardiac arrest (OHCA). In this study, we aimed to evaluate the effects of the Korean National Fire Agency ALS protocol on prehospital return of spontaneous circulation (ROSC) in patients with OHCA., Methods: This study included patients with adult-presumed cardiac arrest between January and December 2020. The main factor of interest was ambulance type according to ALS protocol, which was divided into dedicated ALS ambulance (DA), smartphone-based ALS ambulance (SALS), and non-DA, and the main analysis factor was prehospital ROSC. Multivariate logistic regression analysis was performed., Results: During the study period, a total of 18,031 adult patients with OHCA was treated by the emergency medical services, including 7,520 DAs (41.71%), 2,622 SALSs (14.54%), and 7,889 non-DAs (43.75%). The prehospital ROSC ratio was 13.19% for DA, 11.17% for SALS, and 7.91% for non-DA (P<0.01). Compared with that of the DA group, the odds ratios (95% confidence interval) for prehospital ROSC ratio were 0.97 (0.82-1.15) in the SALS group and 0.57 (0.50-0.65) in the non-DA group. The prehospital ROSC ratio of the DA group was higher than those of the non-DA group and the SALS group., Conclusion: ALS protocol intervention was associated with prehospital ROSC rates. Therefore, continuous efforts to promote systemic implementation of the ALS protocol to improve OHCA outcomes are necessary.
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- 2024
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42. Single-cell RNA sequencing of nc886, a non-coding RNA transcribed by RNA polymerase III, with a primer spike-in strategy.
- Author
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Shin GJ, Choi BH, Eum HH, Jo A, Kim N, Kang H, Hong D, Jang JJ, Lee HH, Lee YS, Lee YS, and Lee HO
- Subjects
- Humans, Transcription, Genetic, DNA Primers genetics, Gene Expression Profiling methods, Single-Cell Analysis methods, RNA Polymerase III genetics, RNA Polymerase III metabolism, RNA, Untranslated genetics, Sequence Analysis, RNA methods
- Abstract
Single-cell RNA sequencing (scRNA-seq) has emerged as a versatile tool in biology, enabling comprehensive genomic-level characterization of individual cells. Currently, most scRNA-seq methods generate barcoded cDNAs by capturing the polyA tails of mRNAs, which exclude many non-coding RNAs (ncRNAs), especially those transcribed by RNA polymerase III (Pol III). Although previously thought to be expressed constitutively, Pol III-transcribed ncRNAs are expressed variably in healthy and disease states and play important roles therein, necessitating their profiling at the single-cell level. In this study, we developed a measurement protocol for nc886 as a model case and initial step for scRNA-seq for Pol III-transcribed ncRNAs. Specifically, we spiked in an oligo-tagged nc886-specific primer during the polyA tail capture process for the 5'scRNA-seq. We then produced sequencing libraries for standard 5' gene expression and oligo-tagged nc886 separately, to accommodate different cDNA sizes and ensure undisturbed transcriptome analysis. We applied this protocol in three cell lines that express high, low, and zero levels of nc886. Our results show that the identification of oligo tags exhibited limited target specificity, and sequencing reads of nc886 enabled the correction of non-specific priming. These findings suggest that gene-specific primers (GSPs) can be employed to capture RNAs lacking a polyA tail, with subsequent sequence verification ensuring accurate gene expression counting. Moreover, we embarked on an analysis of differentially expressed genes in cell line sub-clusters with differential nc886 expression, demonstrating variations in gene expression phenotypes. Collectively, the primer spike-in strategy allows combined analysis of ncRNAs and gene expression phenotype., Competing Interests: The authors have declared that no competing interests exist., (Copyright: © 2024 Shin et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.)
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- 2024
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43. Perceived stress and influencing factors for the people at high risk to COVID-19 in centralized quarantine camps in Wenzhou, China.
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Zhou YW, Zheng JY, Shan CY, Yang HS, Su YS, Wang DB, Ni JX, Lan LJ, Lian XZ, and Zhou ZM
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- Humans, China epidemiology, Male, Female, Adult, Middle Aged, Surveys and Questionnaires, SARS-CoV-2, Young Adult, Adolescent, Risk Factors, Prevalence, Aged, COVID-19 epidemiology, COVID-19 psychology, COVID-19 prevention & control, Quarantine psychology, Stress, Psychological epidemiology
- Abstract
Background: This study was designed to assess stress levels and related factors during the coronavirus disease 2019 (COVID-19) epidemic among individuals in centralized quarantine camps in Wenzhou, China., Methods: The survey was conducted using a questionnaire. The questionnaire included questions on sociodemographic characteristics, life events related to the COVID-19 and stressful situations, as well as Perceived Stress Scale-14. Participants included close contacts of patients with COVID-19 or at-risk individuals in quarantine camps. Multivariate logistic regression was used to analyze different factors affecting perceived stress., Results: The prevalence of high stress among quarantine camp participants was 37.45%. Of the 881 respondents, 51.99% were concerned about the difficulty of controlling the epidemic, 46.20% were concerned about the health of themselves and their family members and 39.61% were concerned about not being able to leave their homes. Multivariate logistic regression analysis revealed statistically significant differences in the prevalence of stress among different groups for certain variables, including occupation, education level and knowledge of COVID-19 (all P < 0.05). Our study found that at-risk individuals and close contacts experienced high levels of stress in quarantine camps during the COVID-19 pandemic., Conclusions: These findings suggest that centralized quarantine policies should be adapted and optimized to minimize negative psychological effects on quarantined individuals., (© The Author(s) 2024. Published by Oxford University Press on behalf of Faculty of Public Health. All rights reserved. For permissions, please e-mail: journals.permissions@oup.com.)
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- 2024
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44. Study on Data Preprocessing for Machine Learning Based on Semiconductor Manufacturing Processes.
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Park HJ, Koo YS, Yang HY, Han YS, and Nam CS
- Abstract
Various data types generated in the semiconductor manufacturing process can be used to increase product yield and reduce manufacturing costs. On the other hand, the data generated during the process are collected from various sensors, resulting in diverse units and an imbalanced dataset with a bias towards the majority class. This study evaluated analysis and preprocessing methods for predicting good and defective products using machine learning to increase yield and reduce costs in semiconductor manufacturing processes. The SECOM dataset is used to achieve this, and preprocessing steps are performed, such as missing value handling, dimensionality reduction, resampling to address class imbalances, and scaling. Finally, six machine learning models were evaluated and compared using the geometric mean (GM) and other metrics to assess the combinations of preprocessing methods on imbalanced data. Unlike previous studies, this research proposes methods to reduce the number of features used in machine learning to shorten the training and prediction times. Furthermore, this study prevents data leakage during preprocessing by separating the training and test datasets before analysis and preprocessing. The results showed that applying oversampling methods, excluding KM SMOTE, achieves a more balanced class classification. The combination of SVM, ADASYN, and MaxAbs scaling showed the best performance with an accuracy and GM of 85.14% and 72.95%, respectively, outperforming all other combinations.
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- 2024
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45. Development of a novel sandwich immunoassay based on targeting recombinant Francisella outer membrane protein A for the diagnosis of tularemia.
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Jang J, Kwon DH, Jang JH, Lee DG, Chang SH, Jeon MY, Jeong YS, Song DH, Min JK, Park JG, Lee MS, Han BS, Yang W, Lee NK, and Lee J
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- Animals, Mice, Immunoassay methods, Sensitivity and Specificity, Female, Cell Surface Display Techniques, Epitopes immunology, Enzyme-Linked Immunosorbent Assay methods, Humans, Antigens, Bacterial immunology, Antigens, Bacterial genetics, Hybridomas, Baculoviridae genetics, Tularemia diagnosis, Francisella tularensis immunology, Francisella tularensis genetics, Mice, Inbred BALB C, Bacterial Outer Membrane Proteins immunology, Bacterial Outer Membrane Proteins genetics, Recombinant Proteins immunology, Recombinant Proteins genetics, Antibodies, Monoclonal immunology, Antibodies, Bacterial
- Abstract
Introduction: Tularemia, caused by the bacterium Francisella tularensis , poses health risks to humans and can spread through a variety of routes. It has also been classified as a Tier 1 Select agent by the CDC, highlighting its potential as a bioterrorism agent. Moreover, it is difficult to diagnose in a timely fashion, owing to the non-specific nature of tularemia infections. Rapid, sensitive, and accurate detection methods are required to reduce mortality rates. We aimed to develop antibodies directed against the outer membrane protein A of F. tularensis (FopA) for rapid and accurate diagnosis of tularemia., Methods: We used a baculovirus insect cell expression vector system to produce the FopA antigen and generate anti-FopA antibodies through immunization of BALB/c mice. We then employed hybridoma and phage display technologies to screen for antibodies that could recognize unique epitopes on FopA., Result: Two monoclonal antibodies, 6B12 and 3C1, identified through phage display screening specifically bound to recombinant FopA in a dose-dependent manner. The binding affinity of the anti-FopA 6B12 and 3C1 antibodies was observed to have an equilibrium dissociation constant of 1.76 × 10-10 M and 1.32 × 10-9 M, respectively. These antibodies were used to develop a sandwich ELISA system for the diagnosis of tularemia. This assay was found to be highly specific and sensitive, with detection limits ranging from 0.062 ng/mL in PBS to 0.064 ng/mL in skim milk matrices., Discussion: Our findings demonstrate the feasibility of a novel diagnostic approach for detecting F. tularensis based on targeting FopA, as opposed to existing tests that target the bacterial lipopolysaccharide., 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 Jang, Kwon, Jang, Lee, Chang, Jeon, Jeong, Song, Min, Park, Lee, Han, Yang, Lee and Lee.)
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- 2024
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46. Urine complement proteins are associated with kidney disease progression of type 2 diabetes in Korean and American cohorts.
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Yun D, Bae S, Gao Y, Lopez L, Han D, Nicora CD, Kim TY, Moon KC, Kim DK, Fillmore TL, Kim YS, Rosenberg AZ, Wang W, Sarder P, Qian WJ, Afkarian M, and Han SS
- Abstract
Background: Mechanisms of progression of diabetic kidney disease (DKD) are not completely understood. This study uses untargeted and targeted mass spectrometry-based proteomics in two independent cohorts on two continents to decipher the mechanisms of DKD in patients with type 2 diabetes., Methods: We conducted untargeted mass spectrometry on urine samples collected at the time of kidney biopsy from Korean patients with type 2 diabetes and biopsy-proven diabetic nephropathy at Seoul National University Hospital (SNUH-DN cohort; n = 64). These findings were validated using targeted mass spectrometry in urine samples from a Chronic Renal Insufficiency Cohort subgroup with type 2 diabetes and DKD (CRIC-T2D; n = 282). Urinary biomarkers/pathways associated with kidney disease progression (doubling of serum creatinine, ≥50% decrease in estimated glomerular filtration rates, or the development of end-stage kidney disease) were identified., Results: SNUH-DN patients had an estimated glomerular filtration rate (eGFR) of 55 mL/min/1.73 m
2 (interquartile range [IQR], 44-75) and random urine protein-to-creatinine ratio of 3.1 g/g (IQR, 1.7-7.0). Urine proteins clustered into two groups, with cluster 2 having a 4.6-fold greater hazard (95% confidence interval [CI], 1.9-11.5) of disease progression than cluster 1 in multivariable-adjusted, time-to-event analyses. Proteins in cluster 2 mapped to 10 pathways, four of the top five of which were complement or complement-related. A high complement score, constructed from urine complement protein abundance, was strongly correlated to 4 of 5 histopathologic DN features and was associated with a 2.4-fold greater hazard (95% CI, 1.0-5.4) of disease progression than a low complement score. Targeted mass spectrometry of the CRIC-T2D participants, who had an eGFR of 42 mL/min/1.73 m2 (IQR, 37-49) and 24-hr urine protein of 0.48 g (IQR, 0.10-1.87), showed that the complement score similarly segregated them into rapid and slow DKD progression groups. In both cohorts, the complement score had a linear association with disease progression., Conclusions: Urinary proteomic profiling confirms the association between the complement pathway and rapid DKD progression in two independent cohorts. These results suggest a need to further investigate complement pathway inhibition as a novel treatment for DKD.- Published
- 2024
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47. Impact of Blood Pressure on Allograft Function and Survival in Kidney Transplant Recipients.
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Kim HJ, Kim KW, Joo YS, Ryu J, Jung HY, Jeong KH, Kim MG, Ju MK, Han S, Lee JS, Kang KP, Ro H, Lee KW, Huh KH, Kim MS, Kim BS, and Yang J
- Subjects
- Humans, Female, Male, Middle Aged, Adult, Allografts, Aged, Proportional Hazards Models, Graft Rejection, Transplant Recipients, Hypertension, Kidney Transplantation, Blood Pressure, Graft Survival, Glomerular Filtration Rate
- Abstract
The optimal target blood pressure for kidney transplant (KT) patients remains unclear. We included 808 KT patients from the KNOW-KT as a discovery set, and 1,294 KT patients from the KOTRY as a validation set. The main exposures were baseline systolic blood pressure (SBP) at 1 year after KT and time-varying SBP. Patients were classified into five groups: SBP <110; 110-119; 120-129; 130-139; and ≥140 mmHg. SBP trajectories were classified into decreasing, stable, and increasing groups. Primary outcome was composite kidney outcome of ≥50% decrease in eGFR or death-censored graft loss. Compared with the 110-119 mmHg group, both the lowest (adjusted hazard ratio [aHR], 2.43) and the highest SBP (aHR, 2.25) were associated with a higher risk of composite kidney outcome. In time-varying model, also the lowest (aHR, 3.02) and the highest SBP (aHR, 3.60) were associated with a higher risk. In the trajectory model, an increasing SBP trajectory was associated with a higher risk than a stable SBP trajectory (aHR, 2.26). This associations were consistent in the validation set. In conclusion, SBP ≥140 mmHg and an increasing SBP trajectory were associated with a higher risk of allograft dysfunction and failure in KT patients., 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 Kim, Kim, Joo, Ryu, Jung, Jeong, Kim, Ju, Han, Lee, Kang, Ro, Lee, Huh, Kim, Kim and Yang.)
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- 2024
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48. Effects of a walking program using the "WalkON" mobile app among college students.
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Kim YS
- Abstract
Objective: This study implemented a 12-week walking program using the mobile app WalkON among college students and evaluated its effects., Methods: This study used a quasi-experimental, non-equivalent control group, pre/post design. The WalkON program was conducted from September to December 2022, involving 50 participants in the experimental group and 52 participants in the control group., Results: Significant between-group differences were observed as follows. Sleep quality evaluation score (i.e. higher scores mean poorer sleep quality) decreased more significantly in the experimental group (vs. control group; 1.40 vs. 0.34 points, respectively; p = .027). Anxiety decreased more in the experimental group than in the control group (2.08 vs. 1.75 points, respectively; p = .020). Regarding the mean score of the "health responsibility" domain of health-promoting behaviors, the experimental group saw an increase of 0.25 points compared to 0.15 in the control group ( p = .005). The self-efficacy level increased by an average of 0.34 points in the experimental group and 0.03 points in the control group ( p = .046)., Conclusions: The WalkON program has the potential to positively influence physical activity engagement and health-promoting behaviors in college students. It could be an effective strategy for promoting the physical and mental health of college students lacking engagement in physical activity. This study is significant in that it provides evidence of a mobile app-based program potentially useful to encourage college students to increase their regular physical activity through walking exercises, something especially pertinent in the new norm of contactless environments post-COVID-19., Competing Interests: The author declared no potential conflicts of interest with respect to the research, authorship, and/or publication of this article., (© The Author(s) 2024.)
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- 2024
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49. Hyposalinity elicits physiological responses and alters intestinal microbiota in Korean rockfish Sebastes schlegelii.
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Kim JA, Park YS, Kim JH, and Choi CY
- Abstract
Global warming significantly impacts aquatic ecosystems, with changes in the salt environment negatively affecting the physiological responses of fish. We investigated the impact of hyposalinity on the physiological responses and intestinal microbiota of Sebastes schlegelii under the context of increased freshwater influx due to climate change. We focused on the osmoregulatory capacity, oxidative stress responses, and alterations in the intestinal microbiome of S. schlegelii under low-salinity conditions. Our findings revealed compromised osmoregulatory capacity in S. schlegelii under low-salinity conditions, accompanied by the activation of oxidative stress responses, indicating physiological adaptations to cope with environmental stress. Specifically, changes in Na
+ /K+ -ATPase (NKA) activity in gill tissues were associated with decreased osmoregulatory capacity. Furthermore, the analysis of the intestinal microbiome led to significant changes in microbial diversity. Exposure to low-salinity environments led to dysbiosis, with notable decreases in the relative abundance of Gammaproteobacteria at the class level and specific genera such as Enterovibrio, and Photobacterium. Conversely, Bacilli classes, along with genera like Mycoplasma, exhibited increased proportions in fish exposed to low-salinity conditions. These findings underscore the potential impact of environmental salinity changes on the adaptive capacity of fish species, particularly in the context of aquaculture. Moreover, they highlight the importance of considering both physiological and microbial responses in understanding the resilience of aquatic organisms to environmental stress. Additionally, they highlight the importance of intestinal microbiota analyses in understanding the immune system and disease management in fish., (© 2024. The Author(s), under exclusive licence to Springer Nature B.V.)- Published
- 2024
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50. Encoded-Fusion-Based Quantum Computation for High Thresholds with Linear Optics.
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Song W, Kang N, Kim YS, and Lee SW
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We propose a fault-tolerant quantum computation scheme in a measurement-based manner with finite-sized entangled resource states and encoded-fusion scheme with linear optics. The encoded fusion is an entangled measurement devised to enhance the fusion success probability in the presence of losses and errors based on a quantum error-correcting code. We apply an encoded-fusion scheme, which can be performed with linear optics and active feedforwards to implement the generalized Shor code, to construct a fault-tolerant network configuration in a three-dimensional Raussendorf-Harrington-Goyal lattice based on the surface code. Numerical simulations show that our scheme allows us to achieve up to 10 times higher loss thresholds than nonencoded fusion approaches with limited numbers of photons used in fusion. Our scheme paves an efficient route toward fault-tolerant quantum computing with finite-sized entangled resource states and linear optics.
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- 2024
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