1
|
Kim Y, Jang E, Hyun Shin J, Kim M, Choi D, Chung H. Identification of gallbladder cancer by direct near-infrared measurement of deuterated chloroform-extracted organic phase from human bile. Spectrochim Acta A Mol Biomol Spectrosc 2023; 303:123139. [PMID: 37463552 DOI: 10.1016/j.saa.2023.123139] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/20/2023] [Revised: 06/20/2023] [Accepted: 07/11/2023] [Indexed: 07/20/2023]
Abstract
A simple near-infrared (NIR) spectroscopic scheme enabling direct measurement of organic phase extracted from human bile with no spectral interference from the extraction solvent was demonstrated for identification of gallbladder (GB) cancer. This scheme is used to recognize the different lipid contents in bile samples from GB cancer patients using NIR spectroscopy for disease identification. To this end, the extraction solvent should provide an absorption-free NIR region to observe peaks of related metabolite. For this purpose, deuterated chloroform (CDCl3) is uniquely suited as an extraction medium because it has few absorption peaks in the 4380-4100 cm-1 range, where intense peaks for lipids and cholesterol are located. This exploratory study used 37 bile samples (obtained from five normal subjects and nine GB polyp, 11 gallstone, six hepatocellular carcinoma (HCC), and six GB cancer patients). The transmission NIR spectra of the organic phases extracted using CDCl3 in a commercial glass vial were directly measured. The peak intensities of the GB cancer samples were lower than those of the other samples, and the differences were statistically significant, with a confidence interval greater than 99.0%. The lower lipid and cholesterol contents in the organic phases of the GB cancer samples were effectively identified in the corresponding NIR spectra. Therefore, the proposed NIR scheme is simpler and faster than the previous infrared (IR) measurement approach that requires solvent drying to highlight the buried metabolite peaks under a solvent absorption band.
Collapse
Affiliation(s)
- Yunjung Kim
- Department of Chemistry and Research Institute for Convergence of Basic Science, Hanyang University, Seoul 04763, Republic of Korea
| | - Eunjin Jang
- Department of Chemistry and Research Institute for Convergence of Basic Science, Hanyang University, Seoul 04763, Republic of Korea
| | - Ji Hyun Shin
- Department of Surgery, College of Medicine, Hanyang University, Seoul 04763, Republic of Korea
| | - Min Kim
- Department of Surgery, College of Medicine, Hanyang University, Seoul 04763, Republic of Korea
| | - Dongho Choi
- Department of Surgery, College of Medicine, Hanyang University, Seoul 04763, Republic of Korea
| | - Hoeil Chung
- Department of Chemistry and Research Institute for Convergence of Basic Science, Hanyang University, Seoul 04763, Republic of Korea.
| |
Collapse
|
2
|
Salas-Silva S, Kim Y, Kim TH, Kim M, Seo D, Choi J, Factor VM, Seo HR, Song Y, Choi GS, Jung YK, Kim K, Lee KG, Jeong J, Shin JH, Choi D. Human chemically-derived hepatic progenitors (hCdHs) as a source of liver organoid generation: Application in regenerative medicine, disease modeling, and toxicology testing. Biomaterials 2023; 303:122360. [PMID: 38465578 DOI: 10.1016/j.biomaterials.2023.122360] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2023] [Revised: 09/24/2023] [Accepted: 10/19/2023] [Indexed: 03/12/2024]
Abstract
BACKGROUND & AIMS Several types of human stem cells from embryonic (ESCs) and induced pluripotent (iPSCs) to adult tissue-specific stem cells are commonly used to generate 3D liver organoids for modeling tissue physiology and disease. We have recently established a protocol for direct conversion of primary human hepatocytes (hPHs) from healthy donor livers into bipotent progenitor cells (hCdHs). Here we extended this culture system to generate hCdH-derived liver organoids for diverse biomedical applications. METHODS To obtain hCdHs, hPHs were cultured in reprogramming medium containing A83-01 and CHIR99021 for 7 days. Liver organoids were established from hCdHs (hCdHOs) and human liver cells (hLOs) using the same donor livers for direct comparison, as well as from hiPSCs. Organoid properties were analyzed by standard in vitro assays. Molecular changes were determined by RT-qPCR and RNA-seq. Clinical relevance was evaluated by transplantation into FRG mice, modeling of alcohol-related liver disease (ARLD), and in vitro drug-toxicity tests. RESULTS hCdHs were clonally expanded as organoid cultures with low variability between starting hCdH lines. Similar to the hLOs, hCdHOs stably maintained stem cell phenotype based on accepted criteria. However, hCdHOs had an advantage over hLOs in terms of EpCAM expression, efficiency of organoid generation and capacity for directed hepatic differentiation as judged by molecular profiling, albumin secretion, glycogen accumulation, and CYP450 activities. Accordingly, FRG mice transplanted with hCdHOs survived longer than mice injected with hLOs. When exposed to ethanol, hCdHOs developed stronger ARLD phenotype than hLOs as evidenced by transcriptional profiling, lipid accumulation and mitochondrial dysfunction. In drug-induced injury assays in vitro, hCdHOs showed a similar or higher sensitivity response than hPHs. CONCLUSION hCdHOs provide a novel patient-specific stem cell-based platform for regenerative medicine, toxicology testing and modeling liver diseases.
Collapse
Affiliation(s)
- Soraya Salas-Silva
- Department of Surgery, Hanyang University College of Medicine, Seoul, 04763, Republic of Korea; Research Institute of Regenerative Medicine and Stem Cells, Hanyang University, Seoul, 04763, Republic of Korea.
| | - Yohan Kim
- Department of Surgery, Hanyang University College of Medicine, Seoul, 04763, Republic of Korea; Research Institute of Regenerative Medicine and Stem Cells, Hanyang University, Seoul, 04763, Republic of Korea; Max Planck Institute of Molecular Cell Biology and Genetics, 01307, Dresden, Germany; Department of MetaBioHealth, Sungkyunkwan University, Suwon, 16419, Republic of Korea
| | - Tae Hun Kim
- Department of Surgery, Hanyang University College of Medicine, Seoul, 04763, Republic of Korea; Research Institute of Regenerative Medicine and Stem Cells, Hanyang University, Seoul, 04763, Republic of Korea
| | - Myounghoi Kim
- Department of Surgery, Hanyang University College of Medicine, Seoul, 04763, Republic of Korea; Research Institute of Regenerative Medicine and Stem Cells, Hanyang University, Seoul, 04763, Republic of Korea
| | - Daekwan Seo
- Office of Cellular, Tissue and Gene Therapies, Center for Biologics Evaluation and Researcj, U.S. Food and Drug Administration, Silver Spring, MD, 20993, USA
| | - Jeonghoon Choi
- Office of Cellular, Tissue and Gene Therapies, Center for Biologics Evaluation and Researcj, U.S. Food and Drug Administration, Silver Spring, MD, 20993, USA
| | - Valentina M Factor
- Laboratory of Molecular Pharmacology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, 20892, USA
| | - Haeng Ran Seo
- Advanced Biomedical Research Laboratory, Institute Pasteur Korea, 16, Daewangpangyo-ro 712-beon gil, Bundang-gu, Seongnam-si, Gyeonggi-do, 13488, Republic of Korea
| | - Yeonhwa Song
- Advanced Biomedical Research Laboratory, Institute Pasteur Korea, 16, Daewangpangyo-ro 712-beon gil, Bundang-gu, Seongnam-si, Gyeonggi-do, 13488, Republic of Korea
| | - Gyu Sung Choi
- Department of General Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - Yun Kyung Jung
- Department of Surgery, Hanyang University College of Medicine, Seoul, 04763, Republic of Korea
| | - Kungsik Kim
- Department of Surgery, Hanyang University College of Medicine, Seoul, 04763, Republic of Korea
| | - Kyeong Geun Lee
- Department of Surgery, Hanyang University College of Medicine, Seoul, 04763, Republic of Korea
| | - Jaemin Jeong
- Laboratory of Radiation Exposure and Therapeutics, National Radiation Emergency Medical Center, KIRAMS, Republic of Korea
| | - Ji Hyun Shin
- Department of Surgery, Hanyang University College of Medicine, Seoul, 04763, Republic of Korea; Research Institute of Regenerative Medicine and Stem Cells, Hanyang University, Seoul, 04763, Republic of Korea.
| | - Dongho Choi
- Department of Surgery, Hanyang University College of Medicine, Seoul, 04763, Republic of Korea; Research Institute of Regenerative Medicine and Stem Cells, Hanyang University, Seoul, 04763, Republic of Korea; Department of HY-KIST Bio-convergence, Hanyang University, Seoul, 04763, Republic of Korea.
| |
Collapse
|
3
|
Kim M, Kim Y, Silva ESS, Adisasmita M, Kim KS, Jung YK, Lee KG, Shin JH, Choi D. Enhancing generation efficiency of liver organoids in a collagen scaffold using human chemically derived hepatic progenitors. Ann Hepatobiliary Pancreat Surg 2023; 27:342-349. [PMID: 37661098 DOI: 10.14701/ahbps.23-052] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/07/2023] [Revised: 06/07/2023] [Accepted: 06/08/2023] [Indexed: 09/05/2023] Open
Abstract
Backgrounds/Aims Liver organoids have emerged as a powerful tool for studying liver biology and disease and for developing new therapies and regenerative medicine approaches. For organoid culture, Matrigel, a type of extracellular matrix, is the most commonly used material. However, Matrigel cannot be used for clinical applications due to the presence of unknown proteins that can cause immune rejection, batch-to-batch variability, and angiogenesis. Methods To obtain human primary hepatocytes (hPHs), we performed 2 steps collagenase liver perfusion protocol. We treated three small molecules cocktails (A83-01, CHIR99021, and HGF) for reprogramming the hPHs into human chemically derived hepatic progenitors (hCdHs) and used hCdHs to generate liver organoids. Results In this study, we report the generation of liver organoids in a collagen scaffold using hCdHs. In comparison with adult liver (or primary hepatocyte)-derived organoids with collagen scaffold (hALO_C), hCdH-derived organoids in a collagen scaffold (hCdHO_C) showed a 10-fold increase in organoid generation efficiency with higher expression of liver- or liver progenitor-specific markers. Moreover, we demonstrated that hCdHO_C could differentiate into hepatic organoids (hCdHO_C_DM), indicating the potential of these organoids as a platform for drug screening. Conclusions Overall, our study highlights the potential of hCdHO_C as a tool for liver research and presents a new approach for generating liver organoids using hCdHs with a collagen scaffold.
Collapse
Affiliation(s)
- Myounghoi Kim
- Department of Surgery, Hanyang University College of Medicine, Seoul, Korea
- Research Institute of Regenerative Medicine and Stem Cells, Hanyang University, Seoul, Korea
| | - Yohan Kim
- Max-Planck-Institute of Molecular Cell Biology and Genetics, Dresden, Germany
| | - Elsy Soraya Salas Silva
- Department of Surgery, Hanyang University College of Medicine, Seoul, Korea
- Research Institute of Regenerative Medicine and Stem Cells, Hanyang University, Seoul, Korea
| | - Michael Adisasmita
- Department of Surgery, Hanyang University College of Medicine, Seoul, Korea
- Research Institute of Regenerative Medicine and Stem Cells, Hanyang University, Seoul, Korea
| | - Kyeong Sik Kim
- Department of Surgery, Hanyang University College of Medicine, Seoul, Korea
| | - Yun Kyung Jung
- Department of Surgery, Hanyang University College of Medicine, Seoul, Korea
| | - Kyeong Geun Lee
- Department of Surgery, Hanyang University College of Medicine, Seoul, Korea
| | - Ji Hyun Shin
- Department of Surgery, Hanyang University College of Medicine, Seoul, Korea
- Research Institute of Regenerative Medicine and Stem Cells, Hanyang University, Seoul, Korea
| | - Dongho Choi
- Department of Surgery, Hanyang University College of Medicine, Seoul, Korea
- Research Institute of Regenerative Medicine and Stem Cells, Hanyang University, Seoul, Korea
| |
Collapse
|
4
|
Bui TT, Jang E, Shin JH, Kim TH, Kim H, Choi D, Vu TD, Chung H. Feasibility of Raman spectroscopic identification of gall bladder cancer using extracellular vesicles extracted from bile. Analyst 2023; 148:4156-4165. [PMID: 37501647 DOI: 10.1039/d3an00806a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/29/2023]
Abstract
Extracellular vesicles (EVs), which are heterogeneous membrane-based vesicles with bilayer cell membrane structures, could be versatile biomarkers for the identification of diverse diseases including cancers. With this potential, this study has attempted the Raman spectroscopic identification of gall bladder (GB) cancer by directly measuring the EV solution extracted from human bile without further sample drying. For this purpose, bile samples were obtained from four normal individuals and 21 GB polyp, eight hepatocellular carcinoma (HCC), and five GB cancer patients, and EVs were extracted from each of the bile samples. The Raman peak shapes of the EVs extracted from the GB cancer samples, especially the relative intensities of peaks in the 1560-1340 cm-1 range, were dissimilar to those of the samples from the normal, GB polyp, and HCC groups. The intensity ratios of peaks at 1537 and 1453 cm-1 and at 1395 and 1359 cm-1 of the GB cancer samples were lower and higher, respectively, than those of the samples of the remaining three groups. The differences of peak intensity ratios were statistically significant based on the Mann-Whitney U test. DNA/RNA bases, amino acids, and bile salts contributed to the spectra of EVs, and their relative abundances seemed to vary according to the occurrence of GB cancer. The varied metabolite compositions and/or structures of EVs were successfully demonstrated by the dissimilar peak intensity ratios in the Raman spectra, thereby enabling the discrimination of GB cancer.
Collapse
Affiliation(s)
- Thu Thuy Bui
- Department of Chemistry and Research Institute for Convergence of Basic Science, Hanyang University, Seoul 04763, Republic of Korea.
| | - Eunjin Jang
- Department of Chemistry and Research Institute for Convergence of Basic Science, Hanyang University, Seoul 04763, Republic of Korea.
| | - Ji Hyun Shin
- Department of Surgery, College of Medicine, Hanyang University, Seoul 04763, Republic of Korea
| | - Tae Hun Kim
- Department of Surgery, College of Medicine, Hanyang University, Seoul 04763, Republic of Korea
| | - Hayoon Kim
- Department of Surgery, College of Medicine, Hanyang University, Seoul 04763, Republic of Korea
| | - Dongho Choi
- Department of Surgery, College of Medicine, Hanyang University, Seoul 04763, Republic of Korea
| | - Tung Duy Vu
- Faculty of Chemistry, University of Science, Vietnam National University, Hanoi, Vietnam
| | - Hoeil Chung
- Department of Chemistry and Research Institute for Convergence of Basic Science, Hanyang University, Seoul 04763, Republic of Korea.
| |
Collapse
|
5
|
Kim BS, Lee Y, Shin JH. Impact of estimated pulse wave velocity on cardiovascular outcomes in a general population. Eur Heart J 2022. [DOI: 10.1093/eurheartj/ehac544.2832] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Abstract
Background
Estimated pulse wave velocity (ePWV), a simple surrogate estimate of carotid-femoral pulse wave velocity which was gold standard for measuring aortic stiffness, has been demonstrated to predict cardiovascular (CV) outcome. However, there was limited data on its predictive capacity for CV outcomes in the general population. The study aim was to investigate the independent association between ePWV and CV outcomes in general population.
Methods
A total of 10,030 subjects aged between 40 and 69 years were followed over 18-year period in the Ansan-Ansung cohort study. Levels of ePWV, which was calculated from an equation based on age and mean blood pressure, were categorized according to quartiles. A major adverse cardiovascular event (MACE) was defined as a composite of myocardial infarction, coronary artery disease, stroke, heart failure, peripheral artery disease, and cardiovascular death.
Results
The incidence rates of CV death, and MACE were 7.0% and 22.1% in the fourth (highest) quartile of ePWV and 0.1% and 4.5% in the first (lowest) quartile of ePWV. After adjusting for relevant covariates, patients with third and fourth quartile of ePWV showed significantly higher risk of CV death (hazard ratio [HR] 3.92; 95% confidence intervals [CI] 1.09–14.15 in third quartile and HR 8.53; 95% CI 2.13–34.10 in fourth quartile), and MACE (HR 1.54; 95% CI 1.15–2.08 in third quartile and HR 1.56; 95% CI 1.05–2.32) compared to the reference of first (lowest) quartile of ePWV. However, there were no improvement of C statistic for CV death and MACE when adding ePWV to the Cox regression models with 10-year atherosclerotic cardiovascular disease (ASCVD) risk.
Conclusion
These results suggest that ePWV predicted CV death and MACE in general population. The value of ePWV, a simple and useful indicator of aortic stiffness, is expected to serve as a potential marker to identify high risk groups of CV event in general population.
Funding Acknowledgement
Type of funding sources: None.
Collapse
Affiliation(s)
- B S Kim
- Hanyang University Guri Hospital , Guri , Korea (Republic of)
| | - Y Lee
- Hanyang University Guri Hospital , Guri , Korea (Republic of)
| | - J H Shin
- Hanyang University Guri Hospital , Guri , Korea (Republic of)
| |
Collapse
|
6
|
Lee Y, Shin JH, Kim BS, Kim WH, Kook H, Park HC. Influence of concomitant percutaneous transluminal angioplasty with percutaneous coronary intervention on outcomes in patients with stable lower extremity artery disease. Eur Heart J 2022. [DOI: 10.1093/eurheartj/ehac544.1974] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background
Patients with stable lower extremity artery diseases (LEAD) frequently present with coronary artery diseases; thus, concomitant percutaneous transluminal angioplasty (PTA) at the time of percutaneous coronary intervention (PCI) is often performed. We investigated the influence of concomitant PTA on both cardiovascular (CV) and limb outcomes in the Korean National Health Insurance Service registry.
Methods
Among 78,185 patients undergoing PCI between 2012 and 2015, 6,563 patients (279 for the PTA+PCI group vs. 6,284 for the PCI group) suffering from stable LEAD without limb ischemia were included. Major adverse CV events (MACEs) were defined as a composite of CV death, myocardial infarction (MI) and coronary revascularization. Patients were followed for at least 3 years.
Results
After 1:5 propensity score matching was conducted, 279 patients in the PTA+PCI group and 1,385 patients in the PCI group were compared. The risk of all-cause death was higher in the PTA+PCI group than in the PCI group, whereas the risks of MACE, MI, revascularization, stroke, CV death and bleeding event were not different between the 2 groups in the matched cohort. In contrast, the risks of end-stage renal diseases and unfavorable limb outcomes were higher in the PTA+PCI group than in the PCI group (Figure 1). Mediation analyses revealed that amputation and repeat Percutaneous transluminal angioplasty after discharge significantly mediated the association between the concomitant PTA and all-cause death (Figure 2).
Conclusions
CPTA at the time of PCI is not associated with an increased risk of CV events but may increase the risk of all-cause death by increasing unfavorable renal and limb outcomes in patients with stable LEAD.
Funding Acknowledgement
Type of funding sources: None.
Collapse
Affiliation(s)
- Y Lee
- Hanyang University, Division of Cardiology, Department of internal medicine , Seoul , Korea (Republic of)
| | - J H Shin
- Hanyang University, Division of Cardiology, Department of internal medicine , Seoul , Korea (Republic of)
| | - B S Kim
- Hanyang University Guri Hospital , Seoul , Korea (Republic of)
| | - W H Kim
- Hanyang University, Division of Cardiology, Department of internal medicine , Seoul , Korea (Republic of)
| | - H Kook
- Hanyang University, Division of Cardiology, Department of internal medicine , Seoul , Korea (Republic of)
| | - H C Park
- Hanyang University, Division of Cardiology, Department of internal medicine , Seoul , Korea (Republic of)
| |
Collapse
|
7
|
Shin JH, Lee J, Jung YK, Kim KS, Jeong J, Choi D. Therapeutic applications of gene editing in chronic liver diseases: an update. BMB Rep 2022. [PMID: 35651324 PMCID: PMC9252892 DOI: 10.5483/bmbrep.2022.55.6.033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Innovative genome editing techniques developed in recent decades have revolutionized the biomedical research field. Liver is the most favored target organ for genome editing owing to its ability to regenerate. The regenerative capacity of the liver enables ex vivo gene editing in which the mutated gene in hepatocytes isolated from the animal model of genetic disease is repaired. The edited hepatocytes are injected back into the animal to mitigate the disease. Furthermore, the liver is considered as the easiest target organ for gene editing as it absorbs almost all foreign molecules. The mRNA vaccines, which have been developed to manage the COVID-19 pandemic, have provided a novel gene editing strategy using Cas mRNA. A single injection of gene editing components with Cas mRNA is reported to be efficient in the treatment of patients with genetic liver diseases. In this review, we first discuss previously reported gene editing tools and cases managed using them, as well as liver diseases caused by genetic mutations. Next, we summarize the recent successes of ex vivo and in vivo gene editing approaches in ameliorating liver diseases in animals and humans.
Collapse
Affiliation(s)
- Ji Hyun Shin
- Department of Surgery, Hanyang University College of Medicine, Seoul 04763, Korea
- HY Indang Institute of Regenerative Medicine and Stem Cell Research, Hanyang University, Seoul 04763, Korea
| | - Jinho Lee
- Department of Surgery, Hanyang University College of Medicine, Seoul 04763, Korea
- HY Indang Institute of Regenerative Medicine and Stem Cell Research, Hanyang University, Seoul 04763, Korea
| | - Yun Kyung Jung
- Department of Surgery, Hanyang University College of Medicine, Seoul 04763, Korea
- HY Indang Institute of Regenerative Medicine and Stem Cell Research, Hanyang University, Seoul 04763, Korea
| | - Kyeong Sik Kim
- Department of Surgery, Hanyang University College of Medicine, Seoul 04763, Korea
| | - Jaemin Jeong
- Department of Surgery, Hanyang University College of Medicine, Seoul 04763, Korea
- HY Indang Institute of Regenerative Medicine and Stem Cell Research, Hanyang University, Seoul 04763, Korea
| | - Dongho Choi
- Department of Surgery, Hanyang University College of Medicine, Seoul 04763, Korea
- HY Indang Institute of Regenerative Medicine and Stem Cell Research, Hanyang University, Seoul 04763, Korea
- Department of HY-KIST Bio-convergence, Hanyang University, Seoul 04763, Korea
| |
Collapse
|
8
|
Lee Y, Shin J, Park JK, Shin JH, Kim HJ, Park HC, Heo R. Associations between changing patterns of ST-T waves morphologies in rest electrocardiography and cardiovascular risk in an asymptomatic low risk population: a report from Ansan-Ansung cohort study. Eur Heart J 2021. [DOI: 10.1093/eurheartj/ehab724.2522] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background
While clinical significance of ST-T wave abnormalities (STA) in rest electrocardiography (ECG) on long-term cardiovascular outcomes has been on debate, few studies have been reported on the association between the changes in ST-T waves in rest ECG and cardiovascular outcomes in low risk populations. We investigate the changing patterns of STA in rest ECG and the predictive value of the changes in ST-T wave in rest ECG for cardiovascular events in an asymptomatic general population.
Methods
A longitudinal community-based cohort study was conducted for 12 years. Koreans aged 40–69 years were followed biennially through scheduled revisit for comprehensive assessments. Among 10,030 participants, 6,648 participants who did not have any cardiovascular diseases, angina-related symptoms or pathologic Q waves in rest ECG at baseline were included for analysis. Changes in STAs were defined using the changes between ECG at baseline and that at the first revisit. A major adverse cardiovascular events was defined as a composite of cardiac death, myocardial infarction, clinical diagnosis of coronary artery disease and stroke.
Results
Among 5,924 participants without STA at baseline, only 187 participants (3.2%) developed new STA. Among 724 patients (10.9%) with STA at baseline, 274 patients (37.8%) persistently showed STA at the first revisit. MACEs occurred more frequently in the participants persistently with STA and those with newly-developed STA than in the participants persistently without STA (Figure 1). Multivariate Cox-proportional hazard models showed that a higher risk of MACE was only associated with the persisted STA (HR 1.69; 95% CI 1.10–2.63). In participants with baseline STA, persisted T-wave flattening was associated with a higher risk of MACE, whereas T-wave inversion, either persisted or fluctuated was not associated with a higher risk of MACE, compared with persistent absence of STA (Figure 2). In the participants without baseline STAs, multivariate Cox-proportional hazard model showed that newly-developed T-wave flattening (HR 1.85; 95% CI 0.20–2.84), not T-wave inversion (HR 1.50; 95% CI 0.85–2.65) was associated with a higher risk of MACE. Survival receiver operating curve analysis showed that the changes in STAs had a C-index of 0.538 (95% CI 0.511–0.558), a sensitivity of 13.0% and a specificity of 92.5% and add only a small value to the predictive power of 10-year atherosclerotic cardiovascular diseases risk estimator (C-index without STA changes 0.708 [0.681–0.736] vs. C-index with STA changes 0.721 [0.694–0.748]).
Conclusions
STAs uncommonly developed while frequently disappeared spontaneously in the asymptomatic general population. Persisted STA and newly developed STA in rest ECG were predictive of future cardiovascular events in the asymptomatic general population. However, the changes in STAs did not significantly improve the predictive value of the conventional risk estimator, when added.
Funding Acknowledgement
Type of funding sources: Public grant(s) – National budget only. Main funding source(s): National Research Foundation of Korea Figure 1Figure 2
Collapse
Affiliation(s)
- Y Lee
- Hanyang University Guri Hospital, Seoul, Korea (Republic of)
| | - J Shin
- Hanyang University, Division of Cardiology, Department of internal medicine, Seoul, Korea (Republic of)
| | - J K Park
- Hanyang University, Division of Cardiology, Department of internal medicine, Seoul, Korea (Republic of)
| | - J H Shin
- Hanyang University, Division of Cardiology, Department of internal medicine, Seoul, Korea (Republic of)
| | - H J Kim
- Hanyang University, Division of Cardiology, Department of internal medicine, Seoul, Korea (Republic of)
| | - H C Park
- Hanyang University, Division of Cardiology, Department of internal medicine, Seoul, Korea (Republic of)
| | - R Heo
- Hanyang University, Division of Cardiology, Department of internal medicine, Seoul, Korea (Republic of)
| |
Collapse
|
9
|
Lee Y, Shin J, Shin JH, Kim HJ, Ryu MH, Park HC, Lim HY, Park JK, Heo R, Kim WH. Simulation and validation for count-based binary decision of target blood pressure achievement in home blood pressure monitoring data analysis for clinical practice. Eur Heart J 2021. [DOI: 10.1093/eurheartj/ehab724.2351] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
Introduction
Home blood pressure monitoring (HBPM) is a useful tool to identify hypertension and to decide whether a patient's blood pressure (BP) is controlled. The use of automatized oscillometric BP measurement devices has become increasingly popular with help of information technology and internet of things to the devices. However, applying HBPM to daily clinical practices is still challenging, because most patients with hypertension are in age groups not familiar to digital devices and internet and high BP criteria using average home BP values are often useless in outpatient clinics without easily accessible average BP calculation tools. Therefore, we developed a simple and straightforward method to interpret HBPM through counts of BP ≥135/85 mmHg.
Methods
We simulated 400 cases of HBPM using a random number generator function in statistical software. The simulated average home systolic BP (SBP) and its standard deviation (SD) were 125±15 mmHg and 12±5 mmHg and the number of HBP readings was 24 times. The simulated diastolic BP (DBP) was randomly selected to 50–75% of the SBP. The validation of the binary interpretation method was conducted using actual HBPM data from 386 subjects in a rural area of South Korea. Receiver operating characteristics curve analysis was conducted, and linear regression and logarithmic models were fitted between the numbers of home BP ≥135/85 mmHg and mean BP. Hypertension was defined with average home BP ≥135/85 mmHg.
Results
In the simulated cohort, hypertension was presented in 197 cases (49.3%). The C-index of the numbers of BP readings ≥135/85 mmHg was 0.994 (95% confidence interval [CI] 0.990–0.998), and ≥12 of 24 BP readings ≥135/85 mmHg showed a sensitivity of 95.4%, a specificity of 95.1% and an accuracy of 95.3% for the diagnosis of hypertension. In validation cohort, the numbers of home BP measurements varied from 8 to 81 times. The validation cohort similarly showed that the C-index of the ratio between the number of high BP readings (≥135/85 mmHg) to the number of BP measurements (R-NHBP/NBP) was 0.985 (95% CI, 0.976–0.994) and the best accuracy was shown at R-NHBP/NBP of ≥0.45. R-NHBP/NBP of ≥0.5 showed a sensitivity of 0.957, a specificity of 0.907 and an accuracy of 0.927. The accuracy of the R-NHBP/NBP of ≥0.5 decreased as SD and the range of SBP increased, whereas it did not change with the number of measurements (Figure 1). R-NHBP/NBP <0.2 predicted normotension and R-NHBP/NBP >0.8 predicted hypertension in 95% confidence. Mean widths of the 95 prediction intervals for the average SBP and DBP were 18.2 mmHg and 12.6 mmHg, respectively (Figure 2).
Conclusion
Counting the number of BP ≥135/85 mmHg can provide accurate assessments for the BP levels. R-NHBP/NBP of ≥0.5 is a simple and accurate marker of high BP in HBPM, and R-NHBP/NBP could be a useful tool to assess BP levels in patients practicing HBPM.
Funding Acknowledgement
Type of funding sources: None. Figure 1Figure 2
Collapse
Affiliation(s)
- Y Lee
- Hanyang University Guri Hospital, Seoul, Korea (Republic of)
| | - J Shin
- Hanyang University, Division of Cardiology, Department of internal medicine, Seoul, Korea (Republic of)
| | - J H Shin
- Hanyang University, Division of Cardiology, Department of internal medicine, Seoul, Korea (Republic of)
| | - H J Kim
- Hanyang University, Division of Cardiology, Department of internal medicine, Seoul, Korea (Republic of)
| | - M H Ryu
- Hanyang University Guri Hospital, Seoul, Korea (Republic of)
| | - H C Park
- Hanyang University, Division of Cardiology, Department of internal medicine, Seoul, Korea (Republic of)
| | - H Y Lim
- Hanyang University, Division of Cardiology, Department of internal medicine, Seoul, Korea (Republic of)
| | - J K Park
- Hanyang University, Division of Cardiology, Department of internal medicine, Seoul, Korea (Republic of)
| | - R Heo
- Hanyang University, Division of Cardiology, Department of internal medicine, Seoul, Korea (Republic of)
| | - W H Kim
- Hanyang University, Division of Cardiology, Department of internal medicine, Seoul, Korea (Republic of)
| |
Collapse
|
10
|
Kim KG, Jung J, Shin JH, Park HJ, Kim MJ, Seo JJ, Kim YO, Lee SY, Cho CY, Kim TS. Trends in ESBLs and PABLs among enteric Salmonella isolates from children in Gwangju, Korea: 2014-2018. J Microbiol Immunol Infect 2021; 55:199-206. [PMID: 34580042 DOI: 10.1016/j.jmii.2021.09.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/10/2021] [Revised: 08/10/2021] [Accepted: 09/04/2021] [Indexed: 11/24/2022]
Abstract
OBJECTIVES Non-typhoid Salmonella infection is a major agent of food-borne outbreaks as well as individual cases worldwide. However, few studies on drug-resistant Salmonella strains, especially those recovered from young children, are available. Therefore, we determined the prevalence and characteristics of cephalosporin-resistant Salmonella isolates in the south-west region of Korea over a five-year period. METHODS Non-duplicate Salmonella clinical isolates were recovered from diarrhoeagenic patient specimens at 12 hospitals in Gwangju, Korea between January 2014 and December 2018. Antimicrobial susceptibility testing and molecular features of cephalosporin-resistant isolates were determined. RESULTS A total of 652 Salmonella isolates were collected and 48 cefotaxime-resistant Salmonella isolates (7.4%), that belonged to nine Salmonella serovars, were identified. These were S. Enteritidis, S. Typhimurium, S. I 4,[5],12:i:-, S. Virchow, S. Agona, S. Bareilly, S. Infantis, S. Newport, and S. Schleissheim. The prevalence rate increased from 5.3% in 2014 to 10.3% in 2018. S. Virchow (44.4%) showed significantly high resistant rate compared to the other serovars. PGFE genotyping revealed high genetic homogeneities among each Salmonella serovars, suggesting clonal dissemination of cephalosporin-resistant strains. CONCLUSIONS Progressive increases in carriage rates and the possibility of community outbreaks by cephalosporin-resistant Salmonella in young children may pose tangible public health threats.
Collapse
Affiliation(s)
- Kwang Gon Kim
- Health and Environment Research Institute of Gwangju, Gwangju, South Korea.
| | - Jin Jung
- Health and Environment Research Institute of Gwangju, Gwangju, South Korea
| | - Ji Hyun Shin
- Health and Environment Research Institute of Gwangju, Gwangju, South Korea
| | - Hye Jung Park
- Health and Environment Research Institute of Gwangju, Gwangju, South Korea
| | - Min Ji Kim
- Health and Environment Research Institute of Gwangju, Gwangju, South Korea
| | - Jin Jong Seo
- Health and Environment Research Institute of Gwangju, Gwangju, South Korea
| | - Young Ok Kim
- Department of Pediatrics, Chonnam National University Hospital, Gwangju, South Korea
| | - Su-Ya Lee
- Yesarang Children's Hospital, Gwangju, South Korea
| | - Chang-Yee Cho
- NamguMirae Children's Hospital, Gwangju, South Korea
| | - Tae Sun Kim
- Health and Environment Research Institute of Gwangju, Gwangju, South Korea
| |
Collapse
|
11
|
Tsauo J, Noh SY, Shin JH, Gwon DI, Han K, Lee JM, Jeon UB, Kim YH. Retrograde transvenous obliteration for the prevention of variceal rebleeding in patients with hepatocellular carcinoma: a multicentre retrospective study. Clin Radiol 2021; 76:681-687. [PMID: 34140137 DOI: 10.1016/j.crad.2021.05.011] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2020] [Accepted: 05/14/2021] [Indexed: 12/14/2022]
Abstract
AIM To evaluate the effectiveness and safety of retrograde transvenous obliteration (RTO) for the prevention of variceal rebleeding variceal rebleeding in patients with hepatocellular carcinoma (HCC). MATERIALS AND METHODS This multicentre retrospective study enrolled 79 patients with HCC who underwent RTO for the prevention of variceal rebleeding. Successful occlusion of the gastrorenal shunt and obliteration of the gastric varices were achieved in 74 patients, with a technical success rate of 93.7%. Of the remaining 74 patients (mean age, 64.9±10.3 years; 56 men), 66 (90.4%) had gastroesophageal varices and seven (9.6%) had isolated gastric varices. Thirty-two patients (43.8%) underwent balloon-occluded RTO, 40 patients (54.8%) underwent plug-assisted RTO, and one patient (1.4%) underwent coil-assisted RTO. No patients had major procedural complications. RESULTS Rebleeding occurred in seven patients (9.6%) during the follow-up period. The 6-week and 1-year actuarial probabilities of patients remaining free of rebleeding were 90.8±3.6% and 88.6±4.1%, respectively. The median survival was 12.6 (95% confidence interval [CI] 8-17.3) months. The 6-week, 1-year, and 3-year actuarial probabilities of survival were 83.2±4.4%, 51.1±6.6%, and 32.7±7%, respectively. New or worsening ascites and oesophageal varices occurred in 12 (16.4%) and 13 patients (17.8%), respectively, during the follow-up period. Overt hepatic encephalopathy occurred in one patient (1.4%) during the follow-up period. The Child-Pugh score remained comparable to that at baseline at 1 and 3 months. CONCLUSION RTO was effective and safe in preventing variceal rebleeding in patients with HCC.
Collapse
Affiliation(s)
- J Tsauo
- Department of Interventional Therapy, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - S Y Noh
- Department of Radiology, Kyung Hee University Seoul Hospital, Seoul, South Korea
| | - J H Shin
- Department of Radiology and Research Institute of Radiology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, South Korea.
| | - D I Gwon
- Department of Radiology and Research Institute of Radiology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, South Korea
| | - K Han
- Department of Radiology, Severance Hospital, Yonsei University College of Medicine, Seoul, South Korea
| | - J M Lee
- Department of Radiology, Soonchunhyang University Hospital, Bucheon, South Korea
| | - U B Jeon
- Department of Radiology, Pusan National University Yangsan Hospital, Yangsan, South Korea
| | - Y H Kim
- Department of Radiology, Daegu Catholic University Medical Center, Daegu, South Korea
| |
Collapse
|
12
|
Alhazemi AA, Park S, Shin JH, Cho YC, Kim Y, Lee J, Kim PH, Kim JW, Chu HH. Safety and efficacy of transarterial embolisation for treatment of dorsal pancreatic artery haemorrhage. Clin Radiol 2020; 76:314.e9-314.e15. [PMID: 33334554 DOI: 10.1016/j.crad.2020.11.111] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2020] [Accepted: 11/12/2020] [Indexed: 11/28/2022]
Abstract
AIM To evaluate the safety and efficacy of transarterial embolisation (TAE) of dorsal pancreatic artery (DPA) haemorrhage. MATERIALS AND METHODS Nineteen consecutive patients (M:F = 16:3, mean age 59.6 years) who underwent TAE of DPA in three tertiary medical centres between January 2001 to January 2020 were reviewed retrospectively. Angiographic features and the technical and clinical outcomes of TAE were analysed. RESULTS The clinical presentations were a bloody drain from the Jackson-Pratt drainage tube (n=8), melaena (n=7), abdominal pain (n=4), and haematochezia (n=3). Angiographic findings included pseudoaneurysm (n=14), contrast media extravasation (n=4), or abrupt cut-off of the arterial branch (n=1). The NBCA (N-butyl-cyanoacrylate; n=4), microcoils (n=4), and a combination of these agents (n=7) were used as embolic agents. The most common origin of the DPA in the present study cohort was the splenic artery (n=7), followed by the coeliac trunk (n=4), common hepatic artery (n=4), and superior mesenteric artery (n=4). Technical and clinical success rates were 100% and 84.2% (16/19), respectively. Of the three clinically unsuccessful cases, two patients were revealed to have newly developed bleeding from another artery. The other patient expired 1 day after the TAE procedure due to a progression of hepatic failure. In one patient, an asymptomatic non-target embolisation occurred in the right posterior tibial artery as a procedure-related complication. No major complications were observed. CONCLUSION TAE is safe and effective for the management of bleeding from the DPA. It is important to be aware of the DPA as a potential bleeding source, including the relevant clinical characteristics.
Collapse
Affiliation(s)
- A A Alhazemi
- Department of Radiology, King Fahd Central Hospital, Jazan 45196, Saudi Arabia
| | - S Park
- Department of Radiology, Gil Medical Centre, Gachon University College of Medicine, Incheon, Republic of Korea
| | - J H Shin
- Department of Radiology and Research Institute of Radiology, Asan Medical Centre, University of Ulsan College of Medicine, Seoul, Republic of Korea.
| | - Y C Cho
- Department of Radiology and Research Institute of Radiology, Asan Medical Centre, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Y Kim
- Department of Radiology Chungbuk National University Hospital, Cheongju, Republic of Korea
| | - J Lee
- Department of Radiology Chungbuk National University Hospital, Cheongju, Republic of Korea
| | - P H Kim
- Department of Radiology and Research Institute of Radiology, Asan Medical Centre, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - J W Kim
- Department of Radiology and Research Institute of Radiology, Asan Medical Centre, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - H H Chu
- Department of Radiology and Research Institute of Radiology, Asan Medical Centre, University of Ulsan College of Medicine, Seoul, Republic of Korea
| |
Collapse
|
13
|
Park S, Park SH, Hwang JH, Kim JH, Lee KH, Park SH, Shin JH, Pak SY, Kang JM. Low-dose CT angiography of the lower extremities: a comparison study of image quality and radiation dose. Clin Radiol 2020; 76:156.e19-156.e26. [PMID: 33256975 DOI: 10.1016/j.crad.2020.10.013] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2020] [Accepted: 10/28/2020] [Indexed: 01/22/2023]
Abstract
AIM To investigate the image quality and radiation dose of ultralow-dose (ULD) and low-dose (LD) lower-extremity computed tomography (CT) angiography (LE-CTA) using the advanced modelled iterative reconstruction (ADMIRE) algorithm to detect peripheral arterial disease (PAD) in comparison with standard-dose (SD) CT. MATERIALS AND METHODS One hundred and seven consecutive patients were examined using LE-CTA at 70 kVp and a dual-source scanner to achieve three image sets using 30% (ULD), 70% (LD), and 100% (SD) tube loads. Qualitative analysis was conducted by examining the three image sets for overall quality. The image quality of arterial segments was analysed by two independent readers. In addition, the CT dose index (CTDIvol) was measured in the three image sets. RESULTS The mean overall quality scores were 3.4±0.6 for ULD CT, 3.9±0.3 for LD CT, and 3.9±0.2 for SD CT. Both readers scored the arterial segments as 2-4 (adequate-excellent) in the three image sets. In addition, 89.4% (93/104) and 54.8% (57/104) segments of PAD with calcified plaques were scored 4 between SD and LD CT and between SD and ULD CT, respectively, and 45.2% (47/104) segments had a lower score by one point in ULD CT compared with SD CT. The mean CTDIvol was 4.1±1.1 mGy for SD CT, 2.9±0.8 mGy for LD CT, and 1.2±0.3 mGy for ULD CT. CONCLUSIONS LD/ULD CT at 70 kVp using ADMIRE reconstruction enables a reduction in the radiation dose while enabling adequate evaluation or follow-up of PAD based on LE-CTA.
Collapse
Affiliation(s)
- S Park
- Department of Radiology, Gil Medical Center, Gachon University College of Medicine, 21, Namdong-daero 774beon-gil, Namdong-gu, Incheon, Republic of Korea
| | - S H Park
- Department of Radiology, Gil Medical Center, Gachon University College of Medicine, 21, Namdong-daero 774beon-gil, Namdong-gu, Incheon, Republic of Korea
| | - J H Hwang
- Department of Radiology, Gil Medical Center, Gachon University College of Medicine, 21, Namdong-daero 774beon-gil, Namdong-gu, Incheon, Republic of Korea.
| | - J H Kim
- Department of Radiology, Gil Medical Center, Gachon University College of Medicine, 21, Namdong-daero 774beon-gil, Namdong-gu, Incheon, Republic of Korea
| | - K H Lee
- Department of Radiology, Gil Medical Center, Gachon University College of Medicine, 21, Namdong-daero 774beon-gil, Namdong-gu, Incheon, Republic of Korea
| | - S H Park
- Department of Radiology and Research Institute of Radiology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - J H Shin
- Department of Radiology and Research Institute of Radiology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - S Y Pak
- Department of Biomedical Engineering, Asan Medical Institute of Convergence Science and Technology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - J M Kang
- Department of Surgery, Gil Medical Center, Gachon University College of Medicine, 21, Namdong-daero 774beon-gil, Namdong-gu, Incheon, Republic of Korea
| |
Collapse
|
14
|
Kim KG, Jeong J, Kim MJ, Park DW, Shin JH, Park HJ, Chung JK, Kee HY. Prevalence and molecular epidemiology of ESBLs, plasmid-determined AmpC-type β-lactamases and carbapenemases among diarrhoeagenic Escherichia coli isolates from children in Gwangju, Korea: 2007-16. J Antimicrob Chemother 2020; 74:2181-2187. [PMID: 31071205 DOI: 10.1093/jac/dkz175] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2019] [Revised: 03/19/2019] [Accepted: 04/02/2019] [Indexed: 12/12/2022] Open
Abstract
OBJECTIVES Young children could act as important carriers of cefotaxime-resistant Enterobacteriaceae. However, most studies on these bacteria have focused on hospitalized adults. Therefore, we determined the prevalence and characteristics of ESBL-, plasmid-determined AmpC-type β-lactamase (PABL)- and carbapenemase-producing diarrhoeagenic Escherichia coli isolates mainly from infants and children in the south-west region of Korea over a 10 year period. METHODS Non-duplicate E. coli clinical isolates were recovered from diarrhoeagenic patient specimens at 12 hospitals in Gwangju, Korea, between January 2007 and December 2016. Antimicrobial susceptibilities and molecular features of ESBL- and carbapenemase-producing isolates were determined. RESULTS A total of 1047 pathogenic E. coli isolates were collected and 58 cefotaxime-resistant E. coli isolates (5.5%) were identified. The prevalence and types of β-lactamase genes increased steadily from 5.7% in 2007 to 11.6% in 2016 with some fluctuations. CTX-M-14 (53.4%) was the predominant CTX-M genotype. PFGE revealed high genetic heterogeneities among diarrhoeagenic E. coli isolates, suggesting horizontal transfer of antibiotic resistance genes, which was also proved by conjugation assay. CONCLUSIONS Progressive increases in carriage rates and the number of β-lactamase types, and the possibility of community outbreaks of these food-borne bacteria in young children, may pose tangible public health threats.
Collapse
Affiliation(s)
- Kwang Gon Kim
- Health and Environment Research Institute of Gwangju, Gwangju, Korea
| | - Jin Jeong
- Health and Environment Research Institute of Gwangju, Gwangju, Korea
| | - Min Ji Kim
- Health and Environment Research Institute of Gwangju, Gwangju, Korea
| | - Duck Woong Park
- Health and Environment Research Institute of Gwangju, Gwangju, Korea
| | - Ji Hyun Shin
- Health and Environment Research Institute of Gwangju, Gwangju, Korea
| | - Hye Jung Park
- Health and Environment Research Institute of Gwangju, Gwangju, Korea
| | - Jae Keun Chung
- Health and Environment Research Institute of Gwangju, Gwangju, Korea
| | - Hye Young Kee
- Health and Environment Research Institute of Gwangju, Gwangju, Korea
| |
Collapse
|
15
|
Shin JH, Le NTK, Jang H, Lee T, Kang K. Supramolecular Regulation of Polydopamine Formation by Amyloid Fibers. Chemistry 2020; 26:5500-5507. [PMID: 32092201 DOI: 10.1002/chem.202000437] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2020] [Revised: 02/19/2020] [Indexed: 11/10/2022]
Abstract
Polydopamine (PD) and melanin species are chemically complex systems, the formation and properties of which are incompletely understood. Inspired by the role of functional amyloids in melanin biosynthesis, this paper examines the influences of the supramolecular structure of amyloids on oxidative polymerization of dopamine. Kinetic analyses on the formation of PD species in the presence of hen egg white lysozyme (HEWL) fibers or soluble HEWL revealed that both forms gave rise to the total quantity of PD species, but the rate of their formation could be accelerated only by the amyloid form. PD species formed with HEWL fibers showed a morphology of bundled fibers, whereas those with soluble HEWL had a mesh-like structure. Amyloid fibers of recombinant Pmel17 had properties similar to those of HEWL fibers in modulating PD formation. The results presented here suggest how nature designs functionality with an amyloid structure and can help understand and engineer chemistries of other functional amyloids.
Collapse
Affiliation(s)
- J H Shin
- Department of Applied Chemistry, Kyung Hee University, 1732 Deogyoung-daero, Yongin, Gyeonggi, 17104, Republic of Korea
| | - Nghia T K Le
- Department of Applied Chemistry, Kyung Hee University, 1732 Deogyoung-daero, Yongin, Gyeonggi, 17104, Republic of Korea
| | - Hongje Jang
- Department of Chemistry, Kwangwoon University, 20 Gwangwoon-ro, Nowon-gu, Seoul, 01897, Republic of Korea
| | - Taehoon Lee
- Department of Applied Chemistry, Kyung Hee University, 1732 Deogyoung-daero, Yongin, Gyeonggi, 17104, Republic of Korea
| | - Kyungtae Kang
- Department of Applied Chemistry, Kyung Hee University, 1732 Deogyoung-daero, Yongin, Gyeonggi, 17104, Republic of Korea
| |
Collapse
|
16
|
Kwon MR, Shin JH, Park H, Cho H, Hahn SY, Park KW. Radiomics Study of Thyroid Ultrasound for Predicting BRAF Mutation in Papillary Thyroid Carcinoma: Preliminary Results. AJNR Am J Neuroradiol 2020; 41:700-705. [PMID: 32273326 DOI: 10.3174/ajnr.a6505] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2019] [Accepted: 12/17/2019] [Indexed: 12/19/2022]
Abstract
BACKGROUND AND PURPOSE It is not known how radiomics using ultrasound images contribute to the detection of BRAF mutation. This study aimed to evaluate whether a radiomics study of gray-scale ultrasound can predict the presence or absence of B-Raf proto-oncogene, serine/threonine kinase (BRAF) mutation in papillary thyroid cancer. MATERIALS AND METHODS The study retrospectively included 96 thyroid nodules that were surgically confirmed papillary thyroid cancers between January 2012 and June 2013. BRAF mutation was positive in 48 nodules and negative in 48 nodules. For analysis, ROIs from the nodules were demarcated manually on both longitudinal and transverse sonographic images. We extracted a total of 86 radiomics features derived from histogram parameters, gray-level co-occurrence matrix, intensity size zone matrix, and shape features. These features were used to build 3 different classifier models, including logistic regression, support vector machine, and random forest using 5-fold cross-validation. The performance including accuracy, sensitivity, specificity, positive predictive value, negative predictive value, and area under the receiver operating characteristic curve, of the different models was evaluated. RESULTS The incidence of high-suspicion nodules diagnosed on ultrasound was higher in the BRAF mutation-positive group than in the mutation-negative group (P = .004). The radiomics approach demonstrated that all classification models showed moderate performance for predicting the presence of BRAF mutation in papillary thyroid cancers with an area under the curve value of 0.651, accuracy of 64.3%, sensitivity of 66.8%, and specificity of 61.8%, on average, for the 3 models. CONCLUSIONS Radiomics study using thyroid sonography is limited in predicting the BRAF mutation status of papillary thyroid carcinoma. Further studies will be needed to validate our results using various diagnostic methods.
Collapse
Affiliation(s)
- M-R Kwon
- From the Department of Radiology (M.-r.K., J.H.S., S.Y.H., K.W.P.), Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
- Department of Radiology (M.-r.K.), Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - J H Shin
- From the Department of Radiology (M.-r.K., J.H.S., S.Y.H., K.W.P.), Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - H Park
- Center for Neuroscience Imaging Research/School of Electronic and Electrical Engineering (H.P.), Sungkyunkwan University, Suwon, Korea
| | - H Cho
- Center for Neuroscience Imaging Research/Department of Electronic and Computer Engineering (H.C.), Sungkyunkwan University, Suwon, Korea
| | - S Y Hahn
- From the Department of Radiology (M.-r.K., J.H.S., S.Y.H., K.W.P.), Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - K W Park
- From the Department of Radiology (M.-r.K., J.H.S., S.Y.H., K.W.P.), Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| |
Collapse
|
17
|
Shin JH, Lee G, Jeong MG, Kim HK, Won HY, Choi Y, Lee JH, Nam M, Choi CS, Hwang GS, Hwang ES. Transcriptional coactivator with PDZ-binding motif suppresses the expression of steroidogenic enzymes by nuclear receptor 4 A1 in Leydig cells. FASEB J 2020; 34:5332-5347. [PMID: 32067268 DOI: 10.1096/fj.201900695rrrr] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2019] [Revised: 02/04/2020] [Accepted: 02/05/2020] [Indexed: 01/20/2023]
Abstract
Transcriptional coactivator with PDZ-binding motif (TAZ) plays crucial role in maintaining testicular structure and function via regulation of senescence of spermatogenic cells. However, it remains unclear whether TAZ is involved in testosterone biosynthesis in testicular Leydig cells. We found that TAZ deficiency caused aberrant Leydig cell expansion and increased lipid droplet formation, which was significantly associated with increased lipogenic enzyme expression. Additionally, the expression of key steroidogenic enzymes, including steroidogenic acute regulatory protein, cytochrome P450 (CYP) 11A1, CYP17A1, and 3β-hydroxysteroid dehydrogenase, was greatly increased in TAZ-deficient testes and primary Leydig cells. Interestingly, the transcriptional activity of nuclear receptor 4 A1 (NR4A1) was dramatically suppressed by TAZ; however, the protein expression and the subcellular localization of NR4A1 were not affected by TAZ. TAZ directly associated with the N-terminal region of NR4A1 and substantially suppressed its DNA-binding and transcriptional activities. Stable expression of TAZ in the mouse Leydig TM3 cell line decreased the expression of key steroidogenic enzymes, whereas knockdown of endogenous TAZ in TM3 cells increased transcripts of steroidogenic genes induced by NR4A1. Consistently, testosterone production was enhanced within TAZ-deficient Leydig cells. However, TAZ deficiency resulted in decreased testosterone secretion caused by dysfunctional mitochondria and lysosomes. Therefore, TAZ plays essential role in NR4A1-induced steroidogenic enzyme expression and testosterone production in Leydig cells.
Collapse
Affiliation(s)
- Ji Hyun Shin
- Graduate School of Pharmaceutical Sciences, College of Pharmacy, Ewha Womans University, Seoul, Korea
| | - Gibbeum Lee
- Graduate School of Pharmaceutical Sciences, College of Pharmacy, Ewha Womans University, Seoul, Korea
| | - Mi Gyeong Jeong
- Graduate School of Pharmaceutical Sciences, College of Pharmacy, Ewha Womans University, Seoul, Korea
| | - Hyo Kyeong Kim
- Graduate School of Pharmaceutical Sciences, College of Pharmacy, Ewha Womans University, Seoul, Korea
| | - Hee Yeon Won
- Graduate School of Pharmaceutical Sciences, College of Pharmacy, Ewha Womans University, Seoul, Korea
| | - Yujeong Choi
- Graduate School of Pharmaceutical Sciences, College of Pharmacy, Ewha Womans University, Seoul, Korea
| | - Ji-Hyeok Lee
- Korea Mouse Metabolic Phenotyping Center, Lee Gil Ya Cancer and Diabetes Institute, Gachon University School of Medicine, Incheon, Korea
| | - Miso Nam
- Integrated Metabolomics Research Group, Western Seoul Center, Korea Basic Science Institute, Seoul, Korea
| | - Cheol Soo Choi
- Korea Mouse Metabolic Phenotyping Center, Lee Gil Ya Cancer and Diabetes Institute, Gachon University School of Medicine, Incheon, Korea
| | - Geum-Sook Hwang
- Integrated Metabolomics Research Group, Western Seoul Center, Korea Basic Science Institute, Seoul, Korea
| | - Eun Sook Hwang
- Graduate School of Pharmaceutical Sciences, College of Pharmacy, Ewha Womans University, Seoul, Korea
| |
Collapse
|
18
|
Jo DS, Park SJ, Kim AK, Park NY, Kim JB, Bae JE, Park HJ, Shin JH, Chang JW, Kim PK, Jung YK, Koh JY, Choe SK, Lee KS, Cho DH. Loss of HSPA9 induces peroxisomal degradation by increasing pexophagy. Autophagy 2020; 16:1989-2003. [PMID: 31964216 DOI: 10.1080/15548627.2020.1712812] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023] Open
Abstract
Quality control of peroxisomes is essential for cellular homeostasis. However, the mechanism underlying pexophagy is largely unknown. In this study, we identified HSPA9 as a novel pexophagy regulator. Downregulation of HSPA9 increased macroautophagy/autophagy but decreased the number of peroxisomes in vitro and in vivo. The loss of peroxisomes by HSPA9 depletion was attenuated in SQSTM1-deficient cells. In HSPA9-deficient cells, the level of peroxisomal reactive oxygen species (ROS) increased, while inhibition of ROS blocked pexophagy in HeLa and SH-SY5Y cells. Importantly, reconstitution of HSPA9 mutants found in Parkinson disease failed to rescue the loss of peroxisomes, whereas reconstitution with wild type inhibited pexophagy in HSPA9-depleted cells. Knockdown of Hsc70-5 decreased peroxisomes in Drosophila, and the HSPA9 mutants failed to rescue the loss of peroxisomes in Hsc70-5-depleted flies. Taken together, our findings suggest that the loss of HSPA9 enhances peroxisomal degradation by pexophagy.
Collapse
Affiliation(s)
- Doo Sin Jo
- School of Life Sciences, Kyungpook National University , Daegu, Republic of Korea
| | - So Jung Park
- Department of Medical Genetics, Cambridge Institute for Medical Research, University of Cambridge , Cambridge, UK
| | - Ae-Kyeong Kim
- Metabolism & Neurophysiology Research Group, Korea Research Institute of Bioscience and Biotechnology , Daejeon, Republic of Korea
| | - Na Yeon Park
- School of Life Sciences, Kyungpook National University , Daegu, Republic of Korea
| | - Joon Bum Kim
- School of Life Sciences, Kyungpook National University , Daegu, Republic of Korea
| | - Ji-Eun Bae
- School of Life Sciences, Kyungpook National University , Daegu, Republic of Korea
| | - Hyun Jun Park
- School of Life Sciences, Kyungpook National University , Daegu, Republic of Korea
| | - Ji Hyun Shin
- Department of Medical Genetics, Cambridge Institute for Medical Research, University of Cambridge , Cambridge, UK
| | - Jong Wook Chang
- Cell and Regenerative Medicine Institute, Samsung Medical Center , Seoul, Republic of Korea
| | - Peter K Kim
- Department of Biochemistry, University of Toronto , Toronto, ON, Canada
| | - Yong-Keun Jung
- School of Biological Sciences, Seoul National University , Seoul, Republic of Korea
| | - Jae-Young Koh
- Department of Neurology, Asan Medical Center, University of Ulsan College of Medicine , Seoul, Republic of Korea
| | - Seong-Kyu Choe
- Department of Microbiology, Wonkwang University School of Medicine , Iksan, Jeonbuk, Republic of Korea
| | - Kyu-Sun Lee
- Metabolism & Neurophysiology Research Group, Korea Research Institute of Bioscience and Biotechnology , Daejeon, Republic of Korea
| | - Dong-Hyung Cho
- School of Life Sciences, Kyungpook National University , Daegu, Republic of Korea
| |
Collapse
|
19
|
Park YH, Lee SJ, Cho EY, La Choi Y, Lee JE, Nam SJ, Yang JH, Shin JH, Ko EY, Han BK, Ahn JS, Im YH. Clinical relevance of TNM staging system according to breast cancer subtypes. Ann Oncol 2019; 30:2011. [PMID: 31408085 DOI: 10.1093/annonc/mdz223] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/09/2023] Open
|
20
|
Park S, Jeong B, Shin JH, Kim JH, Kim JW, Gwon DI, Ko GY, Chen CS. Interventional treatment of arterial injury during blind central venous catheterisation in the upper thorax: experience from two centres. Clin Radiol 2019; 75:158.e1-158.e7. [PMID: 31711638 DOI: 10.1016/j.crad.2019.10.005] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2019] [Accepted: 10/03/2019] [Indexed: 12/01/2022]
Abstract
AIM To evaluate the safety and clinical efficacy of interventional treatment for arterial injury during blind, central venous catheterisation in the upper thorax at two tertiary medical centres. MATERIALS AND METHODS Eighteen consecutive patients (37-81 years; M:F=8:10) who underwent interventional treatment for the arterial injuries that occurred during central venous catheterisation without any imaging guidance between November 2007 and December 2018 were included. Clinical data, angiographic findings, detailed interventional procedures, and technical and clinical outcomes were analysed retrospectively. RESULTS Arterial injury sites were the subclavian artery/branches (n=12), axillary artery/branches (n=2), and common carotid artery (n=4). The target vein was not correlated with the corresponding artery/branches in eight patients (44.4%); internal jugular vein to subclavian artery branches. Angiographic findings were pseudoaneurysm (66.7%, 12/18), contrast medium extravasation (22.2%, 4/18), or both (11.1%, n=2). A stent graft was inserted for the main trunk injuries in nine patients, with (n=2) or without (n=7) prior arterial branch embolisation to prevent potential endoleak, while embolisation for the arterial branch injuries was performed in nine patients. Direct percutaneous access with thrombin injection to the pseudoaneurysm or residual arteriovenous fistula was utilised in two. The technical and clinical success rate was 94.4% (17/18) each. There were no procedure-related complications. In one patient without immediate clinical success, there was a persistent pseudoaneurysm after stent graft placement, which was treated with in-stent balloon dilation. CONCLUSION Interventional treatment serves as a safe and effective treatment modality for inadvertent arterial injury related to blind, central venous access catheterisation in the upper thorax.
Collapse
Affiliation(s)
- S Park
- Department of Radiology, Gachon University Gil Medical Centre, 21, Namdong-daero 774beon-gil, Namdong-gu, Incheon, South Korea
| | - B Jeong
- Department of Radiology and Research Institute of Radiology, Asan Medical Centre, University of Ulsan College of Medicine, 88 Olympic-ro 43-gil, Songpa-gu, Seoul 05505, South Korea
| | - J H Shin
- Department of Radiology and Research Institute of Radiology, Asan Medical Centre, University of Ulsan College of Medicine, 88 Olympic-ro 43-gil, Songpa-gu, Seoul 05505, South Korea.
| | - J H Kim
- Department of Radiology, Gachon University Gil Medical Centre, 21, Namdong-daero 774beon-gil, Namdong-gu, Incheon, South Korea
| | - J W Kim
- Department of Radiology and Research Institute of Radiology, Asan Medical Centre, University of Ulsan College of Medicine, 88 Olympic-ro 43-gil, Songpa-gu, Seoul 05505, South Korea
| | - D I Gwon
- Department of Radiology and Research Institute of Radiology, Asan Medical Centre, University of Ulsan College of Medicine, 88 Olympic-ro 43-gil, Songpa-gu, Seoul 05505, South Korea
| | - G-Y Ko
- Department of Radiology and Research Institute of Radiology, Asan Medical Centre, University of Ulsan College of Medicine, 88 Olympic-ro 43-gil, Songpa-gu, Seoul 05505, South Korea
| | - C S Chen
- Department of Radiology, The Affiliated Cancer Hospital of Zhengzhou University, 1 Jianshe E Rd, Erqi Qu, Zhengzhou Shi, Henan Sheng, PR China
| |
Collapse
|
21
|
Abstract
Autophagy is a catabolic cellular response to stress that has been liked to various human diseases. However, the precise involvement of autophagy in health and disease remains unclear. To explore the molecular mechanisms of autophagy, we investigated the effect of TMP21. We found that the down-regulation of TMP21 induced autophagy in SH-SY5Y cells. In addition, the enhanced autophagy observed upon TMP21 depletion was almost completely blocked in ATG5 knockout (KO) or ATG7-KO HeLa cells. Silencing of TMP21 in SH-SY5Y cells also increased the production of cellular reactive oxygen species (ROS). Accordingly, treatment with the ROS scavenger NAC suppressed autophagy activation as well as ROS production in TMP21-depleted cells. In addition, the inhibition of mTOR by treatment with Torin1 was mitigated in TMP21 overexpressing cells compared with that in control cells. Taken together, these results indicated that TMP21 could regulate autophagy by modulating ROS production and mTOR activation.
Collapse
Affiliation(s)
- Ji Hyun Shin
- Department of Medical Genetics, Cambridge Institute for Medical Research, University of Cambridge, Cambridge, CB2 0XY, UK
| | - Dong-Hyung Cho
- School of Life Sciences, Kyungpook National University, Daegu, 41566, South Korea.
| |
Collapse
|
22
|
Lee Y, Park HC, Shin JH, Lim YH, Park JK, Shin J, Kim KS, Kim BK. P5298Influence of the changes in body fat on all-cause and cardiovascular mortality in a general population: a report from Ansan-Ansung cohort in the Korean genome environment study. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz746.0269] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background
Paradoxical beneficial effects of obesity on all-cause and cardiovascular mortality have been reported in multiple cohort studies based on patients with cardiovascular disease as well as general populations. However, the association between the presence of obesity at baseline and the better survival rates could not be directly interpreted into the beneficial effect of gain in obesity or fatness on the mortality, which makes it difficult to provide any recommendation for the management of obesity. Therefore, we investigated the influence of the changes in body fat on all-cause and cardiovascular mortality in a general population.
Methods
A population-based cohort study has been conducted for 12 years (from 2001 to 2012). A total of 5,259 subjects in whom body compositions using a bio-impedance method were measured at least 2 times during the observational period were included. The causes of death was identified from the nation-wide database in KOSTAT. I20-I82 and R99 in the International Classification of Disease-10 codes were defined as a cardiovascular death. The subjects were evenly divided into 3 groups by the percentages of the changes in body fat (Δ%BF; decreased [Δ%BF <0.0%] vs. increased [Δ%BF 0.0–13.7%] vs. highly increased [Δ%BF ≥13.7%]). Inverse probability of treatment weighting was applied to balance the covariate differences among the groups.
Results
The age was 51.2±8.5 years and 51.6% was male. Median observation duration was 163 (the interquartile range: 157–168) months. The all-cause death and cardiovascular death occurred most frequently in the decreased Δ%BF group and least frequent in the highly increased Δ%BF group in both unweighted and weighted cohort. Multivariate Cox proportional hazard models showed that the risk of all-cause death was lower in the increased and highly increased Δ%BF groups (hazard ratio [HR] 0.61 [0.47–0.80] and 0.24 [0.17–0.34], respectively) and the risk of cardiovascular death was lower in the highly increased Δ%BF group (HR 0.20 [0.08–0.48]), compared to those in the decreased Δ%BF group after adjustment for all covariates including physical activities and the changes in muscle mass. The risk of all-cause death and cardiovascular death linearly decreased with increasing Δ%BF (HR 0.72 [0.67–0.77] and 0.70 [0.60–0.82], respectively).
Conclusion
The increase in body fat is associated with a lower risk of all-cause death and cardiovascular death in a middle-age general population, independently with physical activities and the changes in muscle mass.
Collapse
Affiliation(s)
- Y Lee
- Hanyang University Kuri Hospital, Department of cardiology, Guri, Korea (Republic of)
| | - H C Park
- Hanyang University Kuri Hospital, Department of cardiology, Guri, Korea (Republic of)
| | - J H Shin
- Hanyang University Kuri Hospital, Department of cardiology, Guri, Korea (Republic of)
| | - Y H Lim
- Hanyang University, Division of Cardiology, Department of internal medicine, Seoul, Korea (Republic of)
| | - J K Park
- Hanyang University, Division of Cardiology, Department of internal medicine, Seoul, Korea (Republic of)
| | - J Shin
- Hanyang University, Division of Cardiology, Department of internal medicine, Seoul, Korea (Republic of)
| | - K S Kim
- Hanyang University, Division of Cardiology, Department of internal medicine, Seoul, Korea (Republic of)
| | - B K Kim
- Sung Ae Hospital, Department of Cardiology, Seoul, Korea (Republic of)
| |
Collapse
|
23
|
Abstract
Abstract
Purpose
Patients with diabetes mellitus have an elevated risk of atrial fibrillation (AF). However, whether insulin resistance may elevate risk of AF incidence in non-diabetic is inconsistent. The aim of our study was to verify the association between insulin resistance and incidence of AF in non-diabetics.
Methods
We evaluated population-based cohorts embedded in the Korean Genome Epidemiology Study. Insulin resistance was expressed as Homeostasis Model Assessment for Insulin resistance (HOMA-IR). Baseline data including HOMA-IR and electrocardiography (ECG) were obtained at 2001. Subsequent biennial ECG was performed for identification of AF until 2016.
Results
Among the 8220 participants (46.8% male; median age 49 years), 25 participants had AF (0.3%) at baseline and 101 participants developed AF (1.2%) during follow up of 12 years. In multivariate Cox regression analysis, high HOMA-IR (≥1.4) was significantly associated with incident AF compared with low HOMA-IR (<1.40) (adjusted hazard ratio [HR] 1.9, 95% confidence interval [CI] 1.3–3.0). In subgroup analysis, these association was consistent regardless of obesity (BMI<25; adjust HR 1.8, 95% CI 1.1–3.0, BMI≥25; adjust HR 2.3, 95% CI 1.3–4.0)
Subgroup analysis
Conclusion
Based on prospective cohort study, insulin resistance (HOMA-IR) was associated with AF independently of obesity in non-diabetics.
Collapse
Affiliation(s)
- J K Park
- Hanyang University, Seoul, Korea (Republic of)
| | - J H Park
- Hanyang University, Seoul, Korea (Republic of)
| | - Y G Lee
- Hanyang University Kuri Hospital, Cardiology, Guri, Korea (Republic of)
| | - J H Shin
- Hanyang University Kuri Hospital, Cardiology, Guri, Korea (Republic of)
| | - Y H Lim
- Hanyang University, Seoul, Korea (Republic of)
| | - R Heo
- Hanyang University, Seoul, Korea (Republic of)
| | - J Shin
- Hanyang University, Seoul, Korea (Republic of)
| |
Collapse
|
24
|
Jung CE, Chopyk J, Shin JH, Lukacz ES, Brubaker L, Schwanemann LK, Knight R, Wolfe AJ, Pride DT. Benchmarking urine storage and collection conditions for evaluating the female urinary microbiome. Sci Rep 2019; 9:13409. [PMID: 31527753 PMCID: PMC6746804 DOI: 10.1038/s41598-019-49823-5] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2019] [Accepted: 08/27/2019] [Indexed: 12/12/2022] Open
Abstract
Standardized conditions for collection, preservation and storage of urine for microbiome research have not been established. We aimed to identify the effects of the use of preservative AssayAssure® (AA), and the effects of storage time and temperatures on reproducibility of urine microbiome results. We sequenced the V3-4 segment of the 16S rRNA gene to characterize the bacterial community in the urine of a cohort of women. Each woman provided a single voided urine sample, which was divided into aliquots and stored with and without AA, at three different temperatures (room temperature [RT], 4 °C, or -20 °C), and for various time periods up to 4 days. There were significant microbiome differences in urine specimens stored with and without AA at all temperatures, but the most significant differences were observed in alpha diversity (estimated number of taxa) at RT. Specimens preserved at 4 °C and -20 °C for up to 4 days with or without AA had no significant alpha diversity differences. However, significant alpha diversity differences were observed in samples stored without AA at RT. Generally, there was greater microbiome preservation with AA than without AA at all time points and temperatures, although not all results were statistically significant. Addition of AA preservative, shorter storage times, and colder temperatures are most favorable for urinary microbiome reproducibility.
Collapse
Affiliation(s)
- Carrie E Jung
- Department of Obstetrics, Gynecology & Reproductive Sciences, University of California, San Diego, 92093, USA
| | - Jessica Chopyk
- Department of Pathology, University of California, San Diego, CA, 92093, USA
| | - Ji Hyun Shin
- Department of Pathology, University of California, San Diego, CA, 92093, USA
| | - Emily S Lukacz
- Department of Obstetrics, Gynecology & Reproductive Sciences, University of California, San Diego, 92093, USA
| | - Linda Brubaker
- Department of Obstetrics, Gynecology & Reproductive Sciences, University of California, San Diego, 92093, USA
| | - Leila K Schwanemann
- Department of Pathology, University of California, San Diego, CA, 92093, USA
| | - Rob Knight
- Departments of Pediatrics, Bioengineering, and Computer Science and Engineering, University of California, San Diego, 92093, USA
| | - Alan J Wolfe
- Department of Microbiology and Immunology, Loyola University Chicago, Maywood, IL, 601534, USA
| | - David T Pride
- Department of Pathology, University of California, San Diego, CA, 92093, USA.
- Department of Medicine, University of California, San Diego, CA, 92093, USA.
| |
Collapse
|
25
|
Ghose C, Ly M, Schwanemann LK, Shin JH, Atab K, Barr JJ, Little M, Schooley RT, Chopyk J, Pride DT. The Virome of Cerebrospinal Fluid: Viruses Where We Once Thought There Were None. Front Microbiol 2019; 10:2061. [PMID: 31555247 PMCID: PMC6742758 DOI: 10.3389/fmicb.2019.02061] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2019] [Accepted: 08/21/2019] [Indexed: 01/21/2023] Open
Abstract
Traditionally, medicine has held that some human body sites are sterile and that the introduction of microbes to these sites results in infections. This paradigm shifted significantly with the discovery of the human microbiome and acceptance of these commensal microbes living across the body. However, the central nervous system (CNS) is still believed by many to be sterile in healthy people. Using culture-independent methods, we examined the virome of cerebrospinal fluid (CSF) from a cohort of mostly healthy human subjects. We identified a community of DNA viruses, most of which were identified as bacteriophages. Compared to other human specimen types, CSF viromes were not ecologically distinct. There was a high alpha diversity cluster that included feces, saliva, and urine, and a low alpha diversity cluster that included CSF, body fluids, plasma, and breast milk. The high diversity cluster included specimens known to have many bacteria, while other specimens traditionally assumed to be sterile formed the low diversity cluster. There was an abundance of viruses shared among CSF, breast milk, plasma, and body fluids, while each generally shared less with urine, feces, and saliva. These shared viruses ranged across different virus families, indicating that similarities between these viromes represent more than just a single shared virus family. By identifying a virome in the CSF of mostly healthy individuals, it is now less likely that any human body site is devoid of microbes, which further highlights the need to decipher the role that viral communities may play in human health.
Collapse
Affiliation(s)
| | - Melissa Ly
- Department of Pathology, University of California, San Diego, San Diego, CA, United States
| | - Leila K Schwanemann
- Department of Pathology, University of California, San Diego, San Diego, CA, United States
| | - Ji Hyun Shin
- Department of Pathology, University of California, San Diego, San Diego, CA, United States
| | - Katayoon Atab
- Department of Pathology, University of California, San Diego, San Diego, CA, United States
| | - Jeremy J Barr
- School of Biological Sciences, Monash University, Melbourne, VIC, Australia
| | - Mark Little
- Department of Biology, San Diego State University, San Diego, CA, United States
| | - Robert T Schooley
- Department of Medicine, University of California, San Diego, San Diego, CA, United States
| | - Jessica Chopyk
- Department of Pathology, University of California, San Diego, San Diego, CA, United States
| | - David T Pride
- Department of Pathology, University of California, San Diego, San Diego, CA, United States.,Department of Medicine, University of California, San Diego, San Diego, CA, United States
| |
Collapse
|
26
|
Park N, Shin JH, Jo DS, Kim JB, Bae JE, Park HJ, Cho DH. Down-regulated TMP21 in Alzheimer's disease induces autophagy via ATG4B activation. IBRO Rep 2019. [DOI: 10.1016/j.ibror.2019.07.385] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
|
27
|
Shin JH, Park SJ, Jo DS, Park NY, Kim JB, Bae JE, Jo YK, Hwang JJ, Lee JA, Jo DG, Kim JC, Jung YK, Koh JY, Cho DH. Down-regulated TMED10 in Alzheimer disease induces autophagy via ATG4B activation. Autophagy 2019; 15:1495-1505. [PMID: 30821607 DOI: 10.1080/15548627.2019.1586249] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Several studies have shown that dysfunction of macroautophagy/autophagy is associated with many human diseases, including neurodegenerative disease and cancer. To explore the molecular mechanisms of autophagy, we performed a cell-based functional screening with SH-SY5Y cells stably expressing GFP-LC3, using an siRNA library and identified TMED10 (transmembrane p24 trafficking protein 10), previously known as the γ-secretase-modulating protein, as a novel regulator of autophagy. Further investigations revealed that depletion of TMED10 induced the activation of autophagy. Interestingly, protein-protein interaction assays showed that TMED10 directly binds to ATG4B (autophagy related gene 4B cysteine peptidase), and the interaction is diminished under autophagy activation conditions such as rapamycin treatment and serum deprivation. In addition, inhibition of TMED10 significantly enhanced the proteolytic activity of ATG4B for LC3 cleavage. Importantly, the expression of TMED10 in AD (Alzheimer disease) patients was considerably decreased, and downregulation of TMED10 increased amyloid-β (Aβ) production. Treatment with Aβ increased ATG4B proteolytic activity as well as dissociation of TMED10 and ATG4B. Taken together, our results suggest that the AD-associated protein TMED10 negatively regulates autophagy by inhibiting ATG4B activity.Abbreviations: Aβ: amyloid-β; AD: Alzheimer disease; ATG: autophagy related; BECN1: beclin 1; BiFC: bimolecular fluorescence complementation; CD: cytosolic domain; GFP: green fluorescent protein; GLUC: Gaussia luciferase; IP: immunoprecipitation; MAP1LC3/LC3: microtubule associated protein 1 light chain 3; LD: luminal domain; PD: Parkinson disease; ROS: reactive oxygen species; siRNA: small interfering RNA; SNP: single-nucleotide polymorphisms; TD: transmembrane domain; TMED10: transmembrane p24 trafficking protein 10; VC: C terminus of Venus fluorescent protein; VN: N terminus of Venus fluorescent protein.
Collapse
Affiliation(s)
- Ji Hyun Shin
- a School of Life Sciences, Kyungpook National University , Daegu , Republic of Korea.,b Department of Gerontology, Graduate School of E-W Medical Science, Kyung Hee University , Yongin , South Korea
| | - So Jung Park
- b Department of Gerontology, Graduate School of E-W Medical Science, Kyung Hee University , Yongin , South Korea
| | - Doo Sin Jo
- a School of Life Sciences, Kyungpook National University , Daegu , Republic of Korea
| | - Na Yeon Park
- a School of Life Sciences, Kyungpook National University , Daegu , Republic of Korea
| | - Joon Bum Kim
- a School of Life Sciences, Kyungpook National University , Daegu , Republic of Korea
| | - Ji-Eun Bae
- a School of Life Sciences, Kyungpook National University , Daegu , Republic of Korea.,b Department of Gerontology, Graduate School of E-W Medical Science, Kyung Hee University , Yongin , South Korea
| | - Yoon Kyung Jo
- b Department of Gerontology, Graduate School of E-W Medical Science, Kyung Hee University , Yongin , South Korea
| | - Jung Jin Hwang
- c Asan Institute for Life Sciences, Asan Medical Center , Seoul , South Korea
| | - Jin-A Lee
- d College of Life Sciences and Nanotechnology, Hannam University , Daejeon , South Korea
| | - Dong-Gyu Jo
- e School of Pharmacy, Sungkyunkwan University , Suwon , South Korea
| | - Jin Cheon Kim
- f Department of Surgery, University of Ulsan College of Medicine, Asan Medical Center , Seoul , South Korea
| | - Yong Keun Jung
- g School of Biological Sciences, Seoul National University , Seoul , South Korea
| | - Jae-Young Koh
- h Department of Neurology, University of Ulsan College of Medicine, Asan Medical Center , Seoul , South Korea
| | - Dong-Hyung Cho
- a School of Life Sciences, Kyungpook National University , Daegu , Republic of Korea
| |
Collapse
|
28
|
Song Y, Cho SH, Lee DW, Sheen JJ, Shin JH, Suh DC. Osseous versus Nonosseous Spinal Epidural Arteriovenous Fistulas: Experiences of 13 Patients. AJNR Am J Neuroradiol 2018; 40:129-134. [PMID: 30523143 DOI: 10.3174/ajnr.a5904] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2018] [Accepted: 10/12/2018] [Indexed: 02/05/2023]
Abstract
BACKGROUND AND PURPOSE Spinal epidural arteriovenous fistulas are rare vascular malformations. We present 13 patients with spinal epidural arteriovenous fistulas, noting the various presenting symptom patterns, imaging findings related to bone involvement, and outcomes. MATERIALS AND METHODS Among 111 patients with spinal vascular malformations in the institutional data base from 1993 to 2017, thirteen patients (11.7%) had spinal epidural arteriovenous fistulas. We evaluated presenting symptoms and imaging findings, including bone involvement and mode of treatment. To assess the treatment outcome, we compared initial and follow-up clinical status using the modified Aminoff and Logue Scale of Disability and the modified Rankin Scale. RESULTS The presenting symptoms were lower back pain (n = 2), radiculopathy (n = 5), and myelopathy (n = 7). There is overlap of symptoms in 1 patient (No. 11). Distribution of spinal epidural arteriovenous fistulas was cervical (n = 3), thoracic (n = 2), lumbar (n = 6), and sacral (n = 2). Intradural venous reflux was identified in 7 patients with congestive venous myelopathy. The fistulas were successfully treated in all patients who underwent treatment (endovascular embolization, n = 10; operation, n = 1) except 2 patients who refused treatment due to tolerable symptoms. Transarterial glue (n = 7) was used in nonosseous types; and transvenous coils (n = 3), in osseous type. After 19 months of median follow-up, the patients showed symptom improvement after treatment. CONCLUSIONS Although presenting symptoms were diverse, myelopathy caused by intradural venous reflux was the main target of treatment. Endovascular treatment was considered via an arterial approach in nonosseous types and via a venous approach in osseous types.
Collapse
Affiliation(s)
- Y Song
- From the Departments of Radiology and Research Institute of Radiology (Y.S., D.W.L., J.J.S., J.H.S., D.C.S.), University of Ulsan, College of Medicine, Asan Medical Center, Seoul, Republic of Korea
| | - S H Cho
- Department of Neurosurgery (S.H.C.), Ulsan University College of Medicine, Asan Hospital, Gang-reung, Republic of Korea
| | - D W Lee
- From the Departments of Radiology and Research Institute of Radiology (Y.S., D.W.L., J.J.S., J.H.S., D.C.S.), University of Ulsan, College of Medicine, Asan Medical Center, Seoul, Republic of Korea
| | - J J Sheen
- From the Departments of Radiology and Research Institute of Radiology (Y.S., D.W.L., J.J.S., J.H.S., D.C.S.), University of Ulsan, College of Medicine, Asan Medical Center, Seoul, Republic of Korea
| | - J H Shin
- From the Departments of Radiology and Research Institute of Radiology (Y.S., D.W.L., J.J.S., J.H.S., D.C.S.), University of Ulsan, College of Medicine, Asan Medical Center, Seoul, Republic of Korea
| | - D C Suh
- From the Departments of Radiology and Research Institute of Radiology (Y.S., D.W.L., J.J.S., J.H.S., D.C.S.), University of Ulsan, College of Medicine, Asan Medical Center, Seoul, Republic of Korea
| |
Collapse
|
29
|
Kim PS, Shin JH, Jo DS, Shin DW, Choi DH, Kim WJ, Park K, Kim JK, Joo CG, Lee JS, Choi Y, Shin YW, Shin JJ, Jeon HB, Seo JH, Cho DH. Anti-melanogenic activity of schaftoside in Rhizoma Arisaematis by increasing autophagy in B16F1 cells. Biochem Biophys Res Commun 2018; 503:309-315. [DOI: 10.1016/j.bbrc.2018.06.021] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2018] [Accepted: 06/07/2018] [Indexed: 01/06/2023]
|
30
|
Park JK, Choi YW, Kim BS, Chang KS, Lee YG, Shin JH, Lim YH, Park HC, Shin J. P1880Independent effect of physical activity and resting heart rate on incidence of atrial fibrillation in general population. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy565.p1880] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- J K Park
- Hanyang University, Seoul, Korea Republic of
| | - Y W Choi
- Hanyang University, Seoul, Korea Republic of
| | - B S Kim
- Hanyang University, Seoul, Korea Republic of
| | - K S Chang
- Hanyang University, Seoul, Korea Republic of
| | - Y G Lee
- Hanyang University Kuri Hospital, Cardiology, Guri, Korea Republic of
| | - J H Shin
- Hanyang University Kuri Hospital, Cardiology, Guri, Korea Republic of
| | - Y H Lim
- Hanyang University, Seoul, Korea Republic of
| | - H C Park
- Hanyang University Kuri Hospital, Cardiology, Guri, Korea Republic of
| | - J Shin
- Hanyang University, Seoul, Korea Republic of
| |
Collapse
|
31
|
Lee JH, Yoon MH, Tahk SJ, Shin JH, Hwang GS, Choi SY, Choi BJ, Lim HS, Yang HM, Park JS, Seo KW. P3492Nonagenarians with acute myocardial infarction; invasive versus conservative strategy. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy563.p3492] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- J H Lee
- Ajou University Hospital, Cardiology, Suwon, Korea Republic of
| | - M H Yoon
- Ajou University Hospital, Cardiology, Suwon, Korea Republic of
| | - S J Tahk
- Ajou University Hospital, Cardiology, Suwon, Korea Republic of
| | - J H Shin
- Ajou University Hospital, Cardiology, Suwon, Korea Republic of
| | - G S Hwang
- Ajou University Hospital, Cardiology, Suwon, Korea Republic of
| | - S Y Choi
- Ajou University Hospital, Cardiology, Suwon, Korea Republic of
| | - B J Choi
- Ajou University Hospital, Cardiology, Suwon, Korea Republic of
| | - H S Lim
- Ajou University Hospital, Cardiology, Suwon, Korea Republic of
| | - H M Yang
- Ajou University Hospital, Cardiology, Suwon, Korea Republic of
| | - J S Park
- Ajou University Hospital, Cardiology, Suwon, Korea Republic of
| | - K W Seo
- Ajou University Hospital, Cardiology, Suwon, Korea Republic of
| |
Collapse
|
32
|
Lee Y, Park JK, Lim YH, Shin JH, Park HC, Shin J, Kim KS. 5047C-reactive protein and the risk of atrial fibrillation: KOGES 12 years' follow-up study. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy566.5047] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- Y Lee
- Hanyang University, Seoul, Korea Republic of
| | - J K Park
- Hanyang University, Seoul, Korea Republic of
| | - Y H Lim
- Hanyang University, Seoul, Korea Republic of
| | - J H Shin
- Hanyang University, Seoul, Korea Republic of
| | - H C Park
- Hanyang University, Seoul, Korea Republic of
| | - J Shin
- Hanyang University, Seoul, Korea Republic of
| | - K S Kim
- Hanyang University, Seoul, Korea Republic of
| |
Collapse
|
33
|
Lee JH, Yoon MH, Tahk SJ, Shin JH, Hwang GS, Choi SY, Choi BJ, Lim HS, Yang HM, Park JS, Seo KW. P2627Comparision of 3-dimensional quantitative coronary angiography and intravascular ultrasound for detecting functionally significant coronary lesions. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy565.p2627] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- J H Lee
- Ajou University Hospital, Cardiology, Suwon, Korea Republic of
| | - M H Yoon
- Ajou University Hospital, Cardiology, Suwon, Korea Republic of
| | - S J Tahk
- Ajou University Hospital, Cardiology, Suwon, Korea Republic of
| | - J H Shin
- Ajou University Hospital, Cardiology, Suwon, Korea Republic of
| | - G S Hwang
- Ajou University Hospital, Cardiology, Suwon, Korea Republic of
| | - S Y Choi
- Ajou University Hospital, Cardiology, Suwon, Korea Republic of
| | - B J Choi
- Ajou University Hospital, Cardiology, Suwon, Korea Republic of
| | - H S Lim
- Ajou University Hospital, Cardiology, Suwon, Korea Republic of
| | - H M Yang
- Ajou University Hospital, Cardiology, Suwon, Korea Republic of
| | - J S Park
- Ajou University Hospital, Cardiology, Suwon, Korea Republic of
| | - K W Seo
- Ajou University Hospital, Cardiology, Suwon, Korea Republic of
| |
Collapse
|
34
|
Lee JH, Yoon MH, Tahk SJ, Shin JH, Hwang GS, Choi SY, Choi BJ, Lim HS, Yang HM, Park JS, Seo KW. P794Comparision of efficacy and safety of 3-month dual antiplatelet therapy(DAPT) versus 6-month DAPT following Coroflex ISAR sirolimus-eluting stent(C-SES) implantation. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy564.p794] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- J H Lee
- Ajou University Hospital, Cardiology, Suwon, Korea Republic of
| | - M H Yoon
- Ajou University Hospital, Cardiology, Suwon, Korea Republic of
| | - S J Tahk
- Ajou University Hospital, Cardiology, Suwon, Korea Republic of
| | - J H Shin
- Ajou University Hospital, Cardiology, Suwon, Korea Republic of
| | - G S Hwang
- Ajou University Hospital, Cardiology, Suwon, Korea Republic of
| | - S Y Choi
- Ajou University Hospital, Cardiology, Suwon, Korea Republic of
| | - B J Choi
- Ajou University Hospital, Cardiology, Suwon, Korea Republic of
| | - H S Lim
- Ajou University Hospital, Cardiology, Suwon, Korea Republic of
| | - H M Yang
- Ajou University Hospital, Cardiology, Suwon, Korea Republic of
| | - J S Park
- Ajou University Hospital, Cardiology, Suwon, Korea Republic of
| | - K W Seo
- Ajou University Hospital, Cardiology, Suwon, Korea Republic of
| |
Collapse
|
35
|
Seo KW, Yoon MH, Tahk SJ, Shin JH, Hwang GS, Choi SY, Choi BJ, Lim HS, Yang HM, Park JS, Lee JH. P4626Clinical outcome of fractional flow reserve-guided deferred lesions in patients with acute coronary syndrome versus stable angina. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy563.p4626] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- K W Seo
- Ajou University School of Medicine, Suwon, Korea Republic of
| | - M H Yoon
- Ajou University School of Medicine, Suwon, Korea Republic of
| | - S J Tahk
- Ajou University School of Medicine, Suwon, Korea Republic of
| | - J H Shin
- Ajou University School of Medicine, Suwon, Korea Republic of
| | - G S Hwang
- Ajou University School of Medicine, Suwon, Korea Republic of
| | - S Y Choi
- Ajou University School of Medicine, Suwon, Korea Republic of
| | - B J Choi
- Ajou University School of Medicine, Suwon, Korea Republic of
| | - H S Lim
- Ajou University School of Medicine, Suwon, Korea Republic of
| | - H M Yang
- Ajou University School of Medicine, Suwon, Korea Republic of
| | - J S Park
- Ajou University School of Medicine, Suwon, Korea Republic of
| | - J H Lee
- Ajou University School of Medicine, Suwon, Korea Republic of
| |
Collapse
|
36
|
Lee NJ, Shin JH, Lee SS, Park DH, Lee SK, Yoon HK. Transcatheter arterial embolization for iatrogenic bleeding after endoscopic ultrasound-guided pancreaticobiliary drainage. Diagn Interv Imaging 2018; 99:717-724. [PMID: 30033142 DOI: 10.1016/j.diii.2018.06.006] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2018] [Revised: 06/26/2018] [Accepted: 06/28/2018] [Indexed: 12/11/2022]
Abstract
PURPOSE The purpose of this study was to report the incidence of massive bleeding after endoscopic ultrasound-guided transmural pancreaticobiliary drainage (EUS-TPBD) and the clinical outcomes in patients with this condition treated with transcatheter arterial embolization (TAE). PATIENTS AND METHODS We performed a 9-year retrospective analysis of 797 EUS-TPBD procedures (excluding gallbladder or pseudocysts) in 729 patients. Among them, twelve (12/729, 1.65%) patients were referred for TAE to manage active bleeding adjacent to the TPBD sites. There were 8 men and 4 women with a mean age of 66.1 years±13.4 (SD) (range: 45-89 years). The clinical and procedure data of these 12 patients were reviewed. RESULTS Thirteen TAE procedures in 12 patients were performed. The bleeding sites were the left hepatic artery (n=7), the right hepatic artery (n=3), the left gastric artery (n=1), the left accessory gastric artery (n=1) and gastroduodenal artery (n=1). TAE was performed with gelatin sponge particles (n=1), coil (n=1) and n-butyl-2 cyanoacrylate with/without coils (n=11), with technical and clinical success rates of 100% (13/13) and 85% (11/13), respectively. Re-bleeding following embolization with gelatin sponge particles occurred in one patient. Procedure-related ischemic hepatitis was observed in another patient with pancreatic cancer with portal vein involvement. CONCLUSION On the basis of our results, TAE using n-butyl-2 cyanoacrylate seems safe and effective for the treatment of bleeding after EUS-TPBD procedures. When the portal vein is compromised, TAE of the hepatic artery can cause ischemic liver damage.
Collapse
Affiliation(s)
- N J Lee
- Department of Radiology, University of Ulsan College of Medicine, Asan Medical Center, 88, Olympic-ro 43-gil, Songpa-gu, Seoul 05505, Republic of Korea
| | - J H Shin
- Department of Radiology, University of Ulsan College of Medicine, Asan Medical Center, 88, Olympic-ro 43-gil, Songpa-gu, Seoul 05505, Republic of Korea.
| | - S S Lee
- Department of Gastroenterology, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Republic of Korea
| | - D H Park
- Department of Gastroenterology, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Republic of Korea
| | - S K Lee
- Department of Gastroenterology, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Republic of Korea
| | - H-K Yoon
- Department of Radiology, University of Ulsan College of Medicine, Asan Medical Center, 88, Olympic-ro 43-gil, Songpa-gu, Seoul 05505, Republic of Korea
| |
Collapse
|
37
|
Park DJ, Shin JH, Park KH, Ryu HC. Electrically controllable THz asymmetric split-loop resonator with an outer square loop based on VO 2. Opt Express 2018; 26:17397-17406. [PMID: 30119551 DOI: 10.1364/oe.26.017397] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/15/2018] [Accepted: 06/18/2018] [Indexed: 06/08/2023]
Abstract
In this paper, we propose an asymmetric split-loop resonator with an outer square loop (ASLR-OSL) based on vanadium dioxide (VO2) which can actively control the transmission characteristics of a terahertz wave while maintaining a high quality factor of the asymmetric split-loop resonator (ASLR) by adding an outer square loop. The proposed ASLR-OSL demonstrated transmission characteristics similar to those of ASLR, and the transmission characteristics of ASLR-OSL were successfully controlled by directly applying a bias voltage. These results show a simple method for imposing active properties on a common metamaterial having a high quality factor by adding a loop structure.
Collapse
|
38
|
Choi W, Shin JH, Kim PH, Han K, Ohm JY, Kim JH, Kim JW. Clinical outcomes of 23 patients who had repeat pelvic arterial embolisation for uncontrolled post-partum haemorrhage at a single centre. Clin Radiol 2018; 73:665-671. [PMID: 29622362 DOI: 10.1016/j.crad.2018.02.019] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2017] [Accepted: 02/13/2018] [Indexed: 01/23/2023]
Abstract
AIM To evaluate the safety and efficacy of repeated pelvic arterial embolisation (PAE) for uncontrolled postpartum haemorrhage (PPH) after a single session of PAE and to compare angiographic findings between the two sessions of PAE. MATERIALS AND METHODS A total of 23 consecutive patients (age range, 23-44 years) who underwent repeated PAE for uncontrolled PPH between March 2001 and January 2016 in Severance Hospital were reviewed. The interval times between the two sessions of PAE, the angiographic findings, embolic materials, arteries embolised during PAE, and the clinical outcomes were reviewed retrospectively. RESULTS Overall clinical success was achieved after repeated PAE in 21 of 23 patients (91.3%). There were no procedure-related, major complications. On angiography, active bleeding from the uterine collateral arteries was more frequently observed in the second session of PAE (p>0.05), and embolisation of the anterior division of the internal iliac artery was significantly higher during the second session of PAE. Use of permanent embolic materials was significantly higher during the second session of PAE. Recanalisation of a previously embolised artery was identified in 14 patients (60.9%) during the second session. CONCLUSION Repeated PAE is safe and effective for managing recurrent bleeding after a single session of PAE. Repeated PAE is related to a higher chance of embolisation of the anterior division of the internal iliac artery, with the use of permanent embolic materials. Recanalisation of a previously embolised artery seems to be a principal source of rebleeding during a repeated session of PAE.
Collapse
Affiliation(s)
- W Choi
- Department of Radiology, Severance Hospital, Research Institute of Radiological Science, Yonsei University, College of Medicine, 50-1, Yonsei-ro, Seodaemun-gu, Seoul, 03722, Republic of Korea
| | - J H Shin
- Department of Radiology and Research Institute of Radiology, Asan Medical Center, University of Ulsan College of Medicine, 88 Olympic-ro 43-gil, Songpa-gu, Seoul, 138-736, Republic of Korea.
| | - P H Kim
- Department of Radiology and Research Institute of Radiology, Asan Medical Center, University of Ulsan College of Medicine, 88 Olympic-ro 43-gil, Songpa-gu, Seoul, 138-736, Republic of Korea
| | - K Han
- Department of Radiology, Severance Hospital, Research Institute of Radiological Science, Yonsei University, College of Medicine, 50-1, Yonsei-ro, Seodaemun-gu, Seoul, 03722, Republic of Korea
| | - J Y Ohm
- Department of Radiology, Chungnam National University Hospital, 282, Munhwa-ro, Jung-gu, Daejeon, 35015, Republic of Korea
| | - J H Kim
- Department of Radiology and Research Institute of Radiology, Asan Medical Center, University of Ulsan College of Medicine, 88 Olympic-ro 43-gil, Songpa-gu, Seoul, 138-736, Republic of Korea
| | - J W Kim
- Department of Radiology and Research Institute of Radiology, Asan Medical Center, University of Ulsan College of Medicine, 88 Olympic-ro 43-gil, Songpa-gu, Seoul, 138-736, Republic of Korea
| |
Collapse
|
39
|
Lee GD, Shin JH, Choi IH. Growth Performance and Fatty Acid Profiles of Ducks Fed a Diet Supplemented with Aronia (Aronia Melanocarpa) Powder. Braz J Poult Sci 2018. [DOI: 10.1590/1806-9061-2016-0445] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- GD Lee
- Joongbu University, South Korea
| | - JH Shin
- Joongbu University, South Korea
| | - IH Choi
- Joongbu University, South Korea
| |
Collapse
|
40
|
Jo YK, Park NY, Park SJ, Kim BG, Shin JH, Jo DS, Bae DJ, Suh YA, Chang JH, Lee EK, Kim SY, Kim JC, Cho DH. O-GlcNAcylation of ATG4B positively regulates autophagy by increasing its hydroxylase activity. Oncotarget 2018; 7:57186-57196. [PMID: 27527864 PMCID: PMC5302982 DOI: 10.18632/oncotarget.11083] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2016] [Accepted: 07/26/2016] [Indexed: 11/25/2022] Open
Abstract
Autophagy is a catabolic degradation process and maintains cellular homeostasis. And autophagy is activated in response to various stress conditions. Although O-GlcNAcylation functions a sensor for nutrient and stress, the relationship between O-GlcNAcylation and autophagy is largely unknown. Here, we identified that ATG4B is novel target for O-GlcNAcylation under metabolic stress condition. Treatment with PugNAc, an O-GlcNAcase inhibitor increased activation of autophagy in SH-SY5Y cells. Both bimolecular fluorescence complementation and immunoprecipitation assay indicated that OGT directly interacts with ATG4B in SH-SY5Y cells. We also found that the O-GlcNAcylated ATG4B was increased in autophagy activation conditions, and down-regulation of OGT reduces O-GlcNAcylation of ATG4B under low glucose condition. Furthermore, the proteolytic activity of ATG4B for LC3 cleavage was enhanced in PugNAc-treated cells. Taken together, these results imply that O-GlcNAcylation of ATG4B regulates autophagy activation by increasing its proteolytic activity under metabolic stress condition.
Collapse
Affiliation(s)
- Yoon Kyung Jo
- Department of Gerontology, Graduate School of East-West Medical Science, Kyung Hee University, Yongin, South Korea
| | - Na Yeon Park
- Department of Gerontology, Graduate School of East-West Medical Science, Kyung Hee University, Yongin, South Korea
| | - So Jung Park
- Department of Gerontology, Graduate School of East-West Medical Science, Kyung Hee University, Yongin, South Korea
| | - Byung-Gyu Kim
- Leading-edge Research Center for Drug Discovery and Development for Diabetes and Metabolic Disease, School of Medicine, Kyungpook National University Hospital, Daegu, South Korea
| | - Ji Hyun Shin
- Department of Gerontology, Graduate School of East-West Medical Science, Kyung Hee University, Yongin, South Korea
| | - Doo Sin Jo
- Department of Gerontology, Graduate School of East-West Medical Science, Kyung Hee University, Yongin, South Korea
| | - Dong-Jun Bae
- Asan Institute for Life Sciences, Asan Medical Center, Seoul, South Korea
| | - Young-Ah Suh
- Asan Institute for Life Sciences, Asan Medical Center, Seoul, South Korea
| | - Jeong Ho Chang
- Department of Biology Education, Kyungpook National University, Daegu, South Korea
| | - Eun Kyung Lee
- Department of Biochemistry, College of Medicine, Catholic University of Korea, Seoul, South Korea
| | - Sang-Yeob Kim
- Asan Institute for Life Sciences, Asan Medical Center, Seoul, South Korea
| | - Jin Cheon Kim
- Asan Institute for Life Sciences, Asan Medical Center, Seoul, South Korea.,Department of Surgery, University of Ulsan College of Medicine, Asan Medical Center, Seoul, South Korea
| | - Dong-Hyung Cho
- Department of Gerontology, Graduate School of East-West Medical Science, Kyung Hee University, Yongin, South Korea
| |
Collapse
|
41
|
Kwon MR, Shin JH, Hahn SY, Oh YL, Kwak JY, Lee E, Lim Y. Histogram analysis of greyscale sonograms to differentiate between the subtypes of follicular variant of papillary thyroid cancer. Clin Radiol 2018; 73:591.e1-591.e7. [PMID: 29317047 DOI: 10.1016/j.crad.2017.12.008] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2017] [Accepted: 11/27/2017] [Indexed: 11/26/2022]
Abstract
AIM To evaluate the diagnostic value of histogram analysis using ultrasound (US) to differentiate between the subtypes of follicular variant of papillary thyroid carcinoma (FVPTC). MATERIALS AND METHODS The present study included 151 patients with surgically confirmed FVPTC diagnosed between January 2014 and May 2016. Their preoperative US features were reviewed retrospectively. Histogram parameters (mean, maximum, minimum, range, root mean square, skewness, kurtosis, energy, entropy, and correlation) were obtained for each nodule. RESULTS The 152 nodules in 151 patients comprised 48 non-invasive follicular thyroid neoplasm with papillary-like nuclear features (NIFTPs; 31.6%), 60 invasive encapsulated FVPTCs (EFVPTCs; 39.5%), and 44 infiltrative FVPTCs (28.9%). The US features differed significantly between the subtypes of FVPTC. Discrimination was achieved between NIFTPs and infiltrative FVPTC, and between invasive EFVPTC and infiltrative FVPTC using histogram parameters; however, the parameters were not significantly different between NIFTP and invasive EFVPTC. CONCLUSION It is feasible to use greyscale histogram analysis to differentiate between NIFTP and infiltrative FVPTC, but not between NIFTP and invasive EFVPTC. Histograms can be used as a supplementary tool to differentiate the subtypes of FVPTC.
Collapse
Affiliation(s)
- M-R Kwon
- Department of Radiology and Center for Imaging Science, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, South Korea
| | - J H Shin
- Department of Radiology and Center for Imaging Science, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, South Korea.
| | - S Y Hahn
- Department of Radiology and Center for Imaging Science, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, South Korea
| | - Y L Oh
- Department of Pathology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, South Korea
| | - J Y Kwak
- Department of Radiology, Severance Hospital, Research Institute of Radiological Science, Yonsei University College of Medicine, Seoul, South Korea
| | - E Lee
- Department of Computational Science and Engineering, Yonsei University, Seoul, South Korea
| | - Y Lim
- Department of Applied Statistics, Chung-Ang University, 221, Heukseok-dong, Dongjak-gu, Seoul 156-756, South Korea
| |
Collapse
|
42
|
Jo YK, Park NY, Shin JH, Jo DS, Bae JE, Choi ES, Maeng S, Jeon HB, Roh SA, Chang JW, Kim JC, Cho DH. Up-regulation of UVRAG by HDAC1 Inhibition Attenuates 5FU-induced Cell Death in HCT116 Colorectal Cancer Cells. Anticancer Res 2018; 38:271-277. [PMID: 29277783 DOI: 10.21873/anticanres.12218] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2017] [Revised: 10/26/2017] [Accepted: 10/31/2017] [Indexed: 11/10/2022]
Abstract
The ultraviolent irradiation resistance-associated gene (UVRAG), a component of the Beclin 1/autophagy-related 6 complex, regulates the autophagy initiation step and functions in the DNA-damage response. UVRAG is frequently mutated in various cancer types, and mutations of UVRAG increase sensitivity to chemotherapy by impairing DNA-damage repair. In this study, we addressed the epigenetic regulation of UVRAG in colorectal cancer cells. UVRAG expression was increased in cells treated with histone deacetylase (HDAC) inhibitors, such as valproic acid and suberoylanilide hydroxamic acid. Down-regulation of HDAC1 enhanced UVRAG expression in colorectal cancer cells. In addition, both chemical and genetic inhibition of HDAC1 reduced the activation of caspase-3 and cytotoxicity in 5-fluorouracil (5FU)-treated cancer cells. In contrast, UVRAG overexpression inhibited caspase activation and cell death in 5FU-treated cells. Taken together, our findings suggest that up-regulation of UVRAG by HDAC1 inhibition potentiates DNA-damage-mediated cell death in colorectal cancer cells.
Collapse
Affiliation(s)
- Yoon Kyung Jo
- Department of Gerontology, Graduate School of East-West Medical Science, Kyung Hee University, Seoul, Republic of Korea
| | - Na Yeon Park
- Department of Gerontology, Graduate School of East-West Medical Science, Kyung Hee University, Seoul, Republic of Korea
| | - Ji Hyun Shin
- Department of Gerontology, Graduate School of East-West Medical Science, Kyung Hee University, Seoul, Republic of Korea
| | - Doo Sin Jo
- Department of Gerontology, Graduate School of East-West Medical Science, Kyung Hee University, Seoul, Republic of Korea
| | - Ji-Eun Bae
- Department of Gerontology, Graduate School of East-West Medical Science, Kyung Hee University, Seoul, Republic of Korea
| | - Eun Sun Choi
- Department of Gerontology, Graduate School of East-West Medical Science, Kyung Hee University, Seoul, Republic of Korea
| | - Sungho Maeng
- Department of Gerontology, Graduate School of East-West Medical Science, Kyung Hee University, Seoul, Republic of Korea
| | - Hong Bae Jeon
- Biomedical Research Institute, MEDIPOST Corporation, Seongnam, Republic of Korea
| | - Seon Ae Roh
- Asan Institute for Life Sciences, Asan Medical Center, Seoul, Republic of Korea
| | - Jong Wook Chang
- Stem Cell & Regenerative Medicine Institute, Samsung Medical Center, Seoul, Republic of Korea
| | - Jin Cheon Kim
- Asan Institute for Life Sciences, Asan Medical Center, Seoul, Republic of Korea .,Department of Surgery, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Republic of Korea
| | - Dong-Hyung Cho
- Department of Gerontology, Graduate School of East-West Medical Science, Kyung Hee University, Seoul, Republic of Korea
| |
Collapse
|
43
|
Skirzewski M, Karavanova I, Shamir A, Erben L, Garcia-Olivares J, Shin JH, Vullhorst D, Alvarez VA, Amara SG, Buonanno A. ErbB4 signaling in dopaminergic axonal projections increases extracellular dopamine levels and regulates spatial/working memory behaviors. Mol Psychiatry 2018; 23:2227-2237. [PMID: 28727685 PMCID: PMC5775946 DOI: 10.1038/mp.2017.132] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/16/2017] [Revised: 03/13/2017] [Accepted: 04/04/2017] [Indexed: 02/07/2023]
Abstract
Genetic variants of Neuregulin 1 (NRG1) and its neuronal tyrosine kinase receptor ErbB4 are associated with risk for schizophrenia, a neurodevelopmental disorder characterized by excitatory/inhibitory imbalance and dopamine (DA) dysfunction. To date, most ErbB4 studies have focused on GABAergic interneurons in the hippocampus and neocortex, particularly fast-spiking parvalbumin-positive (PV+) basket cells. However, NRG has also been shown to modulate DA levels, suggesting a role for ErbB4 signaling in dopaminergic neuron function. Here we report that ErbB4 in midbrain DAergic axonal projections regulates extracellular DA levels and relevant behaviors. Mice lacking ErbB4 in tyrosine hydroxylase-positive (TH+) neurons, but not in PV+ GABAergic interneurons, exhibit different regional imbalances of basal DA levels and fail to increase DA in response to local NRG1 infusion into the dorsal hippocampus, medial prefrontal cortex and dorsal striatum measured by reverse microdialysis. Using Lund Human Mesencephalic (LUHMES) cells, we show that NRG/ErbB signaling increases extracellular DA levels, at least in part, by reducing DA transporter (DAT)-dependent uptake. Interestingly, TH-Cre;ErbB4f/f mice manifest deficits in learning, spatial and working memory-related behaviors, but not in numerous other behaviors altered in PV-Cre;ErbB4f/f mice. Importantly, microinjection of a Cre-inducible ErbB4 virus (AAV-ErbB4.DIO) into the mesencephalon of TH-Cre;ErbB4f/f mice, which selectively restores ErbB4 expression in DAergic neurons, rescues DA dysfunction and ameliorates behavioral deficits. Our results indicate that direct NRG/ErbB4 signaling in DAergic axonal projections modulates DA homeostasis, and that NRG/ErbB4 signaling in both GABAergic interneurons and DA neurons contribute to the modulation of behaviors relevant to psychiatric disorders.
Collapse
Affiliation(s)
- M Skirzewski
- 0000 0001 2297 5165grid.94365.3dSection on Molecular Neurobiology, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, MD USA
| | - I Karavanova
- 0000 0001 2297 5165grid.94365.3dSection on Molecular Neurobiology, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, MD USA
| | - A Shamir
- 0000 0001 2297 5165grid.94365.3dSection on Molecular Neurobiology, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, MD USA
| | - L Erben
- 0000 0001 2297 5165grid.94365.3dSection on Molecular Neurobiology, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, MD USA ,0000 0001 2240 3300grid.10388.32Institute of Molecular Psychiatry, University of Bonn, Bonn, Germany
| | - J Garcia-Olivares
- 0000 0001 2297 5165grid.94365.3dLaboratory of Molecular and Cellular Neurobiology, National Institute of Mental Health, National Institutes of Health, Bethesda, MD USA
| | - J H Shin
- 0000 0001 2297 5165grid.94365.3dLaboratory for Integrative Neuroscience, Section on Neuronal Structure, National Institute on Alcohol Abuse and Alcoholism, National Institutes of Health, Bethesda, MD USA
| | - D Vullhorst
- 0000 0001 2297 5165grid.94365.3dSection on Molecular Neurobiology, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, MD USA
| | - V A Alvarez
- 0000 0001 2297 5165grid.94365.3dLaboratory for Integrative Neuroscience, Section on Neuronal Structure, National Institute on Alcohol Abuse and Alcoholism, National Institutes of Health, Bethesda, MD USA
| | - S G Amara
- 0000 0001 2297 5165grid.94365.3dLaboratory of Molecular and Cellular Neurobiology, National Institute of Mental Health, National Institutes of Health, Bethesda, MD USA
| | - A Buonanno
- Section on Molecular Neurobiology, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, MD, USA.
| |
Collapse
|
44
|
Lee T, Jun SH, Choi CW, Kim SI, Lee JC, Shin JH. Salt stress affects global protein expression profiles of extracellular membrane-derived vesicles of Listeria monocytogenes. Microb Pathog 2017; 115:272-279. [PMID: 29294369 DOI: 10.1016/j.micpath.2017.12.071] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2017] [Revised: 12/21/2017] [Accepted: 12/29/2017] [Indexed: 11/27/2022]
Abstract
Our previous study has suggested that Listeria monocytogenes produces extracellular membrane vesicles (MVs) and its general stress transcription factor sigma B (σB) affects the production of MVs under energy stress. The objective of this study was to evaluate the production of MVs and perform global protein profiling for MVs with or without salt stress to understand the function of MVs in the pathogenesis of L. monocytogenes. When cells of L. monocytogenes were grown under 0.5 M salt stress, protein concentrations of MVs derived from wild-type strain and its isogenic ΔsigB mutant were approximately doubled compared to those of MVs derived from cells without salt stress. Proteomic analyses showed that the number of MV proteins expressed in wild-type strain was similar to that in ΔsigB mutant under salt stress. However, global protein expression profiles were dramatically changed under salt stress compared to those without salt stress. Fifteen σB dependent proteins were expressed in MVs of wild-type strain under salt stress, including osmolyte transporter OpuCABCD. In addition, MVs produced by salt stressed wild-type and ΔsigB mutant inhibited biofilm formation abilities of both strains. Taken together, our results suggest that salt stress can promote the production of MVs involved in carnitine transporter proteins, with σB playing a pivotal role in biological event.
Collapse
Affiliation(s)
- Taewon Lee
- Department of Data Computational Sciences, Korea University College of Science and Technology, Sejong, Republic of Korea
| | - So Hyun Jun
- Department of Microbiology, Kyungpook National University School of Medicine, Daegu, Republic of Korea
| | - Chi Won Choi
- Division of Life Science, Tunneling Nanotube Research Center, Korea University, Seoul, Republic of Korea
| | - Seung Il Kim
- Division of Life Science, Korea Basic Science Institute, Daejeon, Republic of Korea
| | - Je Chul Lee
- Department of Microbiology, Kyungpook National University School of Medicine, Daegu, Republic of Korea.
| | - Ji Hyun Shin
- Institute of Science and Technology, Korea University College of Science and Technology, Sejong, Republic of Korea.
| |
Collapse
|
45
|
Jeong MG, Song H, Shin JH, Jeong H, Kim HK, Hwang ES. Transcriptional coactivator with PDZ-binding motif is required to sustain testicular function on aging. Aging Cell 2017; 16:1035-1042. [PMID: 28613007 PMCID: PMC5595677 DOI: 10.1111/acel.12631] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/21/2017] [Indexed: 12/15/2022] Open
Abstract
Transcriptional coactivator with PDZ‐binding motif (TAZ) directly interacts with transcription factors and regulates their transcriptional activity. Extensive functional studies have shown that TAZ plays critical regulatory roles in stem cell proliferation, differentiation, and survival and also modulates the development of organs such as the lung, kidney, heart, and bone. Despite the importance of TAZ in stem cell maintenance, TAZ function has not yet been evaluated in spermatogenic stem cells of the male reproductive system. Here, we investigated the expression and functions of TAZ in mouse testis. TAZ was expressed in spermatogenic stem cells; however, its deficiency caused significant structural abnormalities, including atrophied tubules, widened interstitial space, and abnormal Leydig cell expansion, thereby resulting in lowered sperm counts and impaired fertility. Furthermore, TAZ deficiency increased the level of apoptosis and senescence in spermatogenic cells and Leydig cells upon aging. The expression of senescence‐associated β‐galactosidase (SA‐βgal), secretory phenotypes, and cyclin‐dependent kinase inhibitors (p16, p19, and p21) significantly increased in the absence of TAZ. TAZ downregulation in testicular cells further increased SA‐βgal and p21 expression induced by oxidative stress, whereas TAZ overexpression decreased p21 induction and prevented senescence. Mechanistic studies showed that TAZ suppressed DNA‐binding activity of p53 through a direct interaction and thus attenuated p53‐induced p21 gene transcription. Our results suggested that TAZ may suppress apoptosis and premature senescence in spermatogenic cells by inhibiting the p53‐p21 signaling pathway, thus playing important roles in the maintenance and control of reproductive function.
Collapse
Affiliation(s)
- Mi Gyeong Jeong
- College of Pharmacy and Graduate School of Pharmaceutical Sciences; Ewha Womans University; Seoul 03760 Korea
| | - Hyuna Song
- College of Pharmacy and Graduate School of Pharmaceutical Sciences; Ewha Womans University; Seoul 03760 Korea
| | - Ji Hyun Shin
- College of Pharmacy and Graduate School of Pharmaceutical Sciences; Ewha Womans University; Seoul 03760 Korea
| | - Hana Jeong
- College of Pharmacy and Graduate School of Pharmaceutical Sciences; Ewha Womans University; Seoul 03760 Korea
| | - Hyo Kyeong Kim
- College of Pharmacy and Graduate School of Pharmaceutical Sciences; Ewha Womans University; Seoul 03760 Korea
| | - Eun Sook Hwang
- College of Pharmacy and Graduate School of Pharmaceutical Sciences; Ewha Womans University; Seoul 03760 Korea
| |
Collapse
|
46
|
Ko HM, Joo SH, Jo JH, Park WS, Jung WY, Shin JH, Ahn HJ. Liver-Wrapping, Nitric Oxide-Releasing Nanofiber Downregulates Cleaved Caspase-3 and Bax Expression on Rat Hepatic Ischemia-Reperfusion Injury. Transplant Proc 2017; 49:1170-1174. [PMID: 28583550 DOI: 10.1016/j.transproceed.2017.03.054] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
BACKGROUND Hepatic ischemia-reperfusion injury (IRI) is an important determinant of the outcome of hepatic surgery, including re-section and transplantation. Previous studies have shown that nitric oxide (NO) has a protective effect against IRI. Therefore, many studies have examined methods for supplying NO. In this study, we investigated the effect of NO-releasing nanofibers on hepatic IRI in a rat model. METHODS Male Sprague-Dawley rats were divided into 4 groups: control, IRI only (n = 3); group 1, hepatic IRI and liver-wrapping with nanofiber lacking NO (n = 4); group 2, hepatic IRI and liver-wrapping with NO rapid-releasing nanofiber (n = 4); and group 3, hepatic IRI and liver-wrapping with NO slow-releasing nanofiber (n = 5). RESULTS The levels of aspartate aminotransferase and alanine aminotransferase were not significantly different between groups. On the basis of Western blots, Bax/β-actin levels were significantly lower in group 2 than in group 3 (P < .01). Cleaved Caspase-3/β-actin levels were significantly lower in group 2 than in the control, group 1, and group 3 (P < .05, .01, and .01, respectively). However, there were no significant differences in Bcl-2/β-actin between groups. CONCLUSIONS The liver-wrapping NO rapid-releasing nanofiber downregulated cleaved Caspase-3 and Bax expression. It has a protective effect by reducing apoptosis in hepatic IRI in rats.
Collapse
Affiliation(s)
- H M Ko
- Department of Surgery, College of Medicine, Kyung Hee University, Seoul, Republic of Korea
| | - S H Joo
- Department of Surgery, College of Medicine, Kyung Hee University, Seoul, Republic of Korea
| | - J H Jo
- Department of Surgery, College of Medicine, Kyung Hee University, Seoul, Republic of Korea
| | - W S Park
- Department of Surgery, College of Medicine, Kyung Hee University, Seoul, Republic of Korea
| | - W Y Jung
- Department of Chemistry, College of Natural Science, Kwangwoon University, Seoul, Republic of Korea
| | - J H Shin
- Department of Chemistry, College of Natural Science, Kwangwoon University, Seoul, Republic of Korea
| | - H J Ahn
- Department of Surgery, College of Medicine, Kyung Hee University, Seoul, Republic of Korea.
| |
Collapse
|
47
|
Wright C, Shin JH, Rajpurohit A, Deep-Soboslay A, Collado-Torres L, Brandon NJ, Hyde TM, Kleinman JE, Jaffe AE, Cross AJ, Weinberger DR. Altered expression of histamine signaling genes in autism spectrum disorder. Transl Psychiatry 2017; 7:e1126. [PMID: 28485729 PMCID: PMC5534955 DOI: 10.1038/tp.2017.87] [Citation(s) in RCA: 69] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/18/2016] [Revised: 03/17/2017] [Accepted: 03/21/2017] [Indexed: 12/18/2022] Open
Abstract
The histaminergic system (HS) has a critical role in cognition, sleep and other behaviors. Although not well studied in autism spectrum disorder (ASD), the HS is implicated in many neurological disorders, some of which share comorbidity with ASD, including Tourette syndrome (TS). Preliminary studies suggest that antagonism of histamine receptors 1-3 reduces symptoms and specific behaviors in ASD patients and relevant animal models. In addition, the HS mediates neuroinflammation, which may be heightened in ASD. Together, this suggests that the HS may also be altered in ASD. Using RNA sequencing (RNA-seq), we investigated genome-wide expression, as well as a focused gene set analysis of key HS genes (HDC, HNMT, HRH1, HRH2, HRH3 and HRH4) in postmortem dorsolateral prefrontal cortex (DLPFC) initially in 13 subjects with ASD and 39 matched controls. At the genome level, eight transcripts were differentially expressed (false discovery rate <0.05), six of which were small nucleolar RNAs (snoRNAs). There was no significant diagnosis effect on any of the individual HS genes but expression of the gene set of HNMT, HRH1, HRH2 and HRH3 was significantly altered. Curated HS gene sets were also significantly differentially expressed. Differential expression analysis of these gene sets in an independent RNA-seq ASD data set from DLPFC of 47 additional subjects confirmed these findings. Understanding the physiological relevance of an altered HS may suggest new therapeutic options for the treatment of ASD.
Collapse
Affiliation(s)
- C Wright
- Lieber Institute for Brain Development, Clinical Sciences, Johns Hopkins School of Medicine, Baltimore, MD, USA,AstraZeneca Postdoc Program, Innovative Medicines and Early Development, Waltham, MA, USA
| | - J H Shin
- Lieber Institute for Brain Development, Clinical Sciences, Johns Hopkins School of Medicine, Baltimore, MD, USA
| | - A Rajpurohit
- Lieber Institute for Brain Development, Clinical Sciences, Johns Hopkins School of Medicine, Baltimore, MD, USA
| | - A Deep-Soboslay
- Lieber Institute for Brain Development, Clinical Sciences, Johns Hopkins School of Medicine, Baltimore, MD, USA
| | - L Collado-Torres
- Lieber Institute for Brain Development, Clinical Sciences, Johns Hopkins School of Medicine, Baltimore, MD, USA
| | - N J Brandon
- AstraZeneca Neuroscience, Innovative Medicines and Early Development, Waltham, MA, USA
| | - T M Hyde
- Lieber Institute for Brain Development, Clinical Sciences, Johns Hopkins School of Medicine, Baltimore, MD, USA,Department of Psychiatry and Behavioral Sciences, Johns Hopkins School of Medicine, Baltimore, MD, USA,Department of Neurology, Johns Hopkins School of Medicine, Baltimore, MD, USA
| | - J E Kleinman
- Lieber Institute for Brain Development, Clinical Sciences, Johns Hopkins School of Medicine, Baltimore, MD, USA,Department of Psychiatry and Behavioral Sciences, Johns Hopkins School of Medicine, Baltimore, MD, USA
| | - A E Jaffe
- Lieber Institute for Brain Development, Clinical Sciences, Johns Hopkins School of Medicine, Baltimore, MD, USA,Department of Biostatistics, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA,Department of Mental Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
| | - A J Cross
- AstraZeneca Neuroscience, Innovative Medicines and Early Development, Waltham, MA, USA
| | - D R Weinberger
- Lieber Institute for Brain Development, Clinical Sciences, Johns Hopkins School of Medicine, Baltimore, MD, USA,Department of Psychiatry and Behavioral Sciences, Johns Hopkins School of Medicine, Baltimore, MD, USA,Department of Neurology, Johns Hopkins School of Medicine, Baltimore, MD, USA,The Solomon H. Snyder Department of Neuroscience, Johns Hopkins School of Medicine, Baltimore, MD, USA,McKusick-Nathans Institute of Genetic Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA,Lieber Institute for Brain Development, Clinical Sciences, Johns Hopkins School of Medicine, Johns Hopkins Medical Campus, 855 North Wolfe Street, Suite 300, 3rd Floor, Baltimore, MD 21205, USA. E-mail:
| |
Collapse
|
48
|
Abstract
As a key enzyme for gene expression, RNA polymerase II (pol II) reads along the DNA template and catalyzes accurate mRNA synthesis during transcription. On the other hand, genomic DNA is under constant attack by endogenous and environmental stresses. These attack cause many DNA lesions. Pol II functions as a specific sensor that is able to recognize changes in DNA sequences and structures and induces different outcomes. A critical question in the field is how Pol II recognizes and senses these DNA modifications or lesions. Recent studies provided new insights into understanding this critical question. In this mini-review, we would like to focus on three classes of DNA lesions/modifications: (1) Bulky, DNA-distorting lesions that block pol II transcription, (2) small DNA lesions that promote pol II pausing and error-prone transcriptional bypass, and (3) endogenous enzyme-catalyzed DNA modifications that lead to pol II pausing and error-free transcriptional bypass.
Collapse
Affiliation(s)
- Ji Hyun Shin
- Department of Cellular and Molecular Medicine, School of Medicine, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California San Diego, La Jolla, CA 92093 USA
| | - Liang Xu
- Department of Cellular and Molecular Medicine, School of Medicine, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California San Diego, La Jolla, CA 92093 USA
| | - Dong Wang
- Department of Cellular and Molecular Medicine, School of Medicine, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California San Diego, La Jolla, CA 92093 USA
| |
Collapse
|
49
|
Hahn SY, Shin JH, Oh YL. What Is the Ideal Core Number for Ultrasonography-Guided Thyroid Biopsy of Cytologically Inconclusive Nodules? AJNR Am J Neuroradiol 2017; 38:777-781. [PMID: 28154123 DOI: 10.3174/ajnr.a5075] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2016] [Accepted: 11/19/2016] [Indexed: 01/21/2023]
Abstract
BACKGROUND AND PURPOSE Core needle biopsy of the thyroid under ultrasonographic guidance provides a larger tissue sample and may facilitate a more precise histologic diagnosis, reducing the need for repetitive fine-needle aspiration or a diagnostic operation. However, there is no consensus regarding the ideal number of specimens to be obtained for ultrasonography-guided core needle biopsy. The aim of this study was to decide the ideal core number for ultrasonography-guided core needle biopsy of cytologically inconclusive nodules. MATERIALS AND METHODS Sixty consecutive biopsies were performed in 60 thyroid nodules with Bethesda Category I or III cytology. Three biopsy cores were obtained for each thyroid nodule. The first biopsy specimens were taken from the nodule, while the second and third specimens obtained included the nodular tissue, nodular capsule, and surrounding parenchyma. Diagnostic ability was evaluated according to the following: protocol A, first specimen; protocol B, first and second specimens; and protocol C, all specimens. The McNemar test was used for statistical analysis. RESULTS Of the 60 nodules, diagnostic ability was achieved in 41 nodules (68%) with protocol A, in 56 nodules (93%) with protocol B, and in 58 nodules (97%) with protocol C. The diagnostic ability of protocols B and C was significantly higher than that of protocol A (all P values < .001). However, the diagnostic ability of protocol B was not significantly different from that of protocol C. CONCLUSIONS Ultrasonography-guided core needle biopsy for cytologically inconclusive thyroid nodules should obtain at least 2 core specimens with intranodular and capsule targets.
Collapse
Affiliation(s)
- S Y Hahn
- From the Department of Radiology and Center for Imaging Science (S.Y.H., J.H.S.)
| | - J H Shin
- From the Department of Radiology and Center for Imaging Science (S.Y.H., J.H.S.)
| | - Y L Oh
- Department of Pathology (Y.L.O.), Thyroid Center, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea.
| |
Collapse
|
50
|
Jo YK, Roh SA, Lee H, Park NY, Choi ES, Oh JH, Park SJ, Shin JH, Suh YA, Lee EK, Cho DH, Kim JC. Polypyrimidine tract-binding protein 1-mediated down-regulation of ATG10 facilitates metastasis of colorectal cancer cells. Cancer Lett 2017; 385:21-27. [DOI: 10.1016/j.canlet.2016.11.002] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2016] [Revised: 11/01/2016] [Accepted: 11/01/2016] [Indexed: 12/21/2022]
|