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Chung GE, Jeong S, Yu SJ, Yoo J, Cho Y, Lee K, Shin DW, Kim YJ, Yoon J, Han K, Cho EJ. Gamma-glutamyl transferase and the risk of all-cause and disease-specific mortality in patients with diabetes: A nationwide cohort study. J Diabetes 2024; 16:e13551. [PMID: 38664890 PMCID: PMC11045922 DOI: 10.1111/1753-0407.13551] [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] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/18/2023] [Revised: 02/07/2024] [Accepted: 02/16/2024] [Indexed: 04/29/2024] Open
Abstract
BACKGROUND There exists a paucity of data regarding whether gamma-glutamyl transferase is associated with disease-specific mortality in patients with type 2 diabetes mellitus. This study aimed to investigate the association of serum gamma-glutamyl transferase levels with all-cause and disease-specific mortality in patients with diabetes mellitus using a Korean nationwide health-screening database. METHODS A total of 9 687 066 patients without viral hepatitis or liver cirrhosis who underwent health examination in 2009 were included. These patients were divided into four groups according to sex-specific quartiles of serum gamma-glutamyl transferase levels. RESULTS During a median follow-up period of 8.1 years, 222 242 deaths were identified. The all-cause mortality rate increased as the serum gamma-glutamyl transferase levels became higher (highest quartile vs lowest quartile: hazard ratio [HR], 1.57; 95% confidence interval [CI], 1.55-1.59; p for trend <.001). Similar trends were observed for cardiovascular disease (HR, 1.57; 95% CI, 1.53-1.62), ischemic heart disease (HR, 1.40; 95% CI, 1.33-1.48), and stroke (HR, 1.72; 95% CI, 1.60-1.85) in the highest quartile, as compared with the lowest quartile (p for trend <.001). As the gamma-glutamyl transferase quartiles became higher, mortality rates related to cancer (HR, 1.56; 95% CI, 1.52-1.60), liver disease (HR, 9.42; 95% CI, 8.81-10.07), respiratory disease (HR, 1.55; 95% CI, 1.49-1.62), and infectious disease (HR, 1.73; 95% CI, 1.59-1.87) also increased in the highest quartile, compared with the lowest quartile (p for trend <.001). CONCLUSIONS Serum gamma-glutamyl transferase levels may be useful for the risk assessment of all-cause and disease-specific mortality among patients with type 2 diabetes mellitus.
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Affiliation(s)
- Goh Eun Chung
- Department of Internal Medicine and Healthcare Research InstituteSeoul National University Hospital Healthcare System Gangnam CenterSeoulRepublic of Korea
| | - Su‐Min Jeong
- Department of MedicineSeoul National University College of MedicineSeoulRepublic of Korea
| | - Su Jong Yu
- Department of Internal Medicine and Liver Research InstituteSeoul National University College of MedicineSeoulRepublic of Korea
| | - Jeong‐Ju Yoo
- Department of Internal Medicine, Division of Gastroenterology and HepatologySoonchunhyang University Bucheon HospitalGyeonggi‐doRepublic of Korea
| | - Yuri Cho
- Center for Liver and Pancreatobiliary CancerNational Cancer CenterGoyangRepublic of Korea
| | - Kyu‐na Lee
- Department of Biomedicine & Health ScienceThe Catholic University of KoreaSeoulKorea
| | - Dong Wook Shin
- Department of MedicineSeoul National University College of MedicineSeoulRepublic of Korea
- Department of Clinical Research Design and Evaluation/Department of Digital HealthSamsung Advanced Institute for Health ScienceSeoulRepublic of Korea
| | - Yoon Jun Kim
- Department of Internal Medicine and Healthcare Research InstituteSeoul National University Hospital Healthcare System Gangnam CenterSeoulRepublic of Korea
| | - Jung‐Hwan Yoon
- Department of Internal Medicine and Healthcare Research InstituteSeoul National University Hospital Healthcare System Gangnam CenterSeoulRepublic of Korea
| | - Kyungdo Han
- Department of BiostatisticsCollege of Medicine, Soongsil UniversitySeoulRepublic of Korea
| | - Eun Ju Cho
- Department of Internal Medicine and Liver Research InstituteSeoul National University College of MedicineSeoulRepublic of Korea
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Park H, Yoon EL, Chung GE, Choe EK, Bae JH, Choi SH, Kim M, Hwang W, Kim HL, Yang SY, Jun DW. Genetic and Metabolic Characteristics of Lean Nonalcoholic Fatty Liver Disease in a Korean Health Examinee Cohort. Gut Liver 2024; 18:316-327. [PMID: 37560798 PMCID: PMC10938142 DOI: 10.5009/gnl230044] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/08/2023] [Revised: 04/05/2023] [Accepted: 04/10/2023] [Indexed: 08/11/2023] Open
Abstract
Background/Aims The pathophysiology of lean nonalcoholic fatty liver disease (NAFLD) is unclear but has been shown to be associated with more diverse pathogenic mechanisms than that of obese NAFLD. We investigated the characteristics of genetic or metabolic lean NAFLD in a health checkup cohort. Methods This retrospective cross-sectional study analyzed single nucleotide polymorphism data for 6,939 health examinees. Lean individuals were categorized according to a body mass index cutoff of 23 kg/m2. Single nucleotide polymorphisms were analyzed using genotyping arrays. Results The prevalence of lean NAFLD was 21.6% among all participants with NAFLD, and the proportion of lean NAFLD was 18.5% among lean participants. The prevalence of metabolic syndrome and diabetes among lean patients with NAFLD was 12.4% and 10.4%, respectively. Lean NAFLD appeared to be metabolic-associated in approximately 20.1% of patients. The homozygous minor allele (GG) of PNPLA3 (rs738409) and heterozygous minor alleles (CT, TT) of TM6SF2 (rs58542926) were associated with lean NAFLD. However, the prevalence of fatty liver was not associated with the genetic variants MBOAT7 (rs641738), HSD17B13 (rs72613567), MARC1 (rs2642438), or AGXT2 (rs2291702) in lean individuals. Lean NAFLD appeared to be associated with PNPLA3 or TM6SF2 genetic variation in approximately 32.1% of cases. Multivariate risk factor analysis showed that metabolic risk factors, genetic risk variants, and waist circumference were independent risk factors for lean NAFLD. Conclusions In a considerable number of patients, lean NAFLD did not appear to be associated with known genetic or metabolic risk factors. Further studies are required to investigate additional risk factors and gain a more comprehensive understanding of lean NAFLD.
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Affiliation(s)
- Huiyul Park
- Department of Family Medicine, Myoungji Hospital, Hanyang University College of Medicine, Goyang, Korea
| | - Eileen L. Yoon
- Department of Internal Medicine, Hanyang University College of Medicine, Seoul, Korea
| | - Goh Eun Chung
- Departments of Internal Medicine, Seoul National University Hospital Healthcare System Gangnam Center, Seoul, Korea
| | - Eun Kyung Choe
- Departments of Surgery, Healthcare Research Institute, Seoul National University Hospital Healthcare System Gangnam Center, Seoul, Korea
| | - Jung Ho Bae
- Departments of Internal Medicine, Seoul National University Hospital Healthcare System Gangnam Center, Seoul, Korea
| | - Seung Ho Choi
- Departments of Internal Medicine, Seoul National University Hospital Healthcare System Gangnam Center, Seoul, Korea
| | - Mimi Kim
- Department of Radiology, Hanyang University College of Medicine, Seoul, Korea
| | - Woochang Hwang
- Hanyang Institute of Bioscience and Biotechnology, Department of Pre-Medicine, College of Medicine, Hanyang University, Seoul, Korea
| | - Hye-Lin Kim
- College of Pharmacy, Sahmyook University, Seoul, Korea
| | - Sun Young Yang
- Departments of Internal Medicine, Seoul National University Hospital Healthcare System Gangnam Center, Seoul, Korea
| | - Dae Won Jun
- Department of Internal Medicine, Hanyang University College of Medicine, Seoul, Korea
- Hanyang Institute of Bioscience and Biotechnology, Department of Pre-Medicine, College of Medicine, Hanyang University, Seoul, Korea
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Kim BS, Cho M, Chung GE, Lee J, Kang HY, Yoon D, Cho WS, Lee JC, Bae JH, Kong HJ, Kim S. Density clustering-based automatic anatomical section recognition in colonoscopy video using deep learning. Sci Rep 2024; 14:872. [PMID: 38195632 PMCID: PMC10776865 DOI: 10.1038/s41598-023-51056-6] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2023] [Accepted: 12/29/2023] [Indexed: 01/11/2024] Open
Abstract
Recognizing anatomical sections during colonoscopy is crucial for diagnosing colonic diseases and generating accurate reports. While recent studies have endeavored to identify anatomical regions of the colon using deep learning, the deformable anatomical characteristics of the colon pose challenges for establishing a reliable localization system. This study presents a system utilizing 100 colonoscopy videos, combining density clustering and deep learning. Cascaded CNN models are employed to estimate the appendix orifice (AO), flexures, and "outside of the body," sequentially. Subsequently, DBSCAN algorithm is applied to identify anatomical sections. Clustering-based analysis integrates clinical knowledge and context based on the anatomical section within the model. We address challenges posed by colonoscopy images through non-informative removal preprocessing. The image data is labeled by clinicians, and the system deduces section correspondence stochastically. The model categorizes the colon into three sections: right (cecum and ascending colon), middle (transverse colon), and left (descending colon, sigmoid colon, rectum). We estimated the appearance time of anatomical boundaries with an average error of 6.31 s for AO, 9.79 s for HF, 27.69 s for SF, and 3.26 s for outside of the body. The proposed method can facilitate future advancements towards AI-based automatic reporting, offering time-saving efficacy and standardization.
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Grants
- 1711179421, RS-2021-KD000006 the Korea Medical Device Development Fund grant funded by the Korean government (the Ministry of Science and ICT, the Ministry of Trade, Industry and Energy, the Ministry of Health and Welfare, and the Ministry of Food and Drug Safety)
- 1711179421, RS-2021-KD000006 the Korea Medical Device Development Fund grant funded by the Korean government (the Ministry of Science and ICT, the Ministry of Trade, Industry and Energy, the Ministry of Health and Welfare, and the Ministry of Food and Drug Safety)
- 1711179421, RS-2021-KD000006 the Korea Medical Device Development Fund grant funded by the Korean government (the Ministry of Science and ICT, the Ministry of Trade, Industry and Energy, the Ministry of Health and Welfare, and the Ministry of Food and Drug Safety)
- IITP-2023-2018-0-01833 the Ministry of Science and ICT, Korea under the Information Technology Research Center (ITRC) support program
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Affiliation(s)
- Byeong Soo Kim
- Interdisciplinary Program in Bioengineering, Graduate School, Seoul National University, Seoul, 08826, Korea
| | - Minwoo Cho
- Innovative Medical Technology Research Institute, Seoul National University Hospital, Seoul, 03080, Korea
- Department of Transdisciplinary Medicine, Seoul National University Hospital, Seoul, 03080, Korea
- Department of Medicine, Seoul National University College of Medicine, Seoul, 03080, Korea
| | - Goh Eun Chung
- Department of Internal Medicine and Healthcare Research Institute, Healthcare System Gangnam Center, Seoul National University Hospital, Seoul, 06236, Korea
| | - Jooyoung Lee
- Department of Internal Medicine and Healthcare Research Institute, Healthcare System Gangnam Center, Seoul National University Hospital, Seoul, 06236, Korea
| | - Hae Yeon Kang
- Department of Internal Medicine and Healthcare Research Institute, Healthcare System Gangnam Center, Seoul National University Hospital, Seoul, 06236, Korea
| | - Dan Yoon
- Interdisciplinary Program in Bioengineering, Graduate School, Seoul National University, Seoul, 08826, Korea
| | - Woo Sang Cho
- Interdisciplinary Program in Bioengineering, Graduate School, Seoul National University, Seoul, 08826, Korea
| | - Jung Chan Lee
- Department of Biomedical Engineering, Seoul National University College of Medicine, Seoul, 03080, Korea
- Institute of Bioengineering, Seoul National University, Seoul, 08826, Republic of Korea
- Institute of Medical and Biological Engineering, Medical Research Center, Seoul National University, Seoul, 03080, Korea
| | - Jung Ho Bae
- Department of Internal Medicine and Healthcare Research Institute, Healthcare System Gangnam Center, Seoul National University Hospital, Seoul, 06236, Korea.
| | - Hyoun-Joong Kong
- Innovative Medical Technology Research Institute, Seoul National University Hospital, Seoul, 03080, Korea.
- Department of Transdisciplinary Medicine, Seoul National University Hospital, Seoul, 03080, Korea.
- Department of Medicine, Seoul National University College of Medicine, Seoul, 03080, Korea.
- Medical Big Data Research Center, Seoul National University College of Medicine, Seoul, 03087, Korea.
| | - Sungwan Kim
- Department of Biomedical Engineering, Seoul National University College of Medicine, Seoul, 03080, Korea.
- Institute of Bioengineering, Seoul National University, Seoul, 08826, Republic of Korea.
- Artificial Intelligence Institute, Seoul National University, Research Park Building 942, 2 Fl., Seoul, 08826, Korea.
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Okekunle AP, Youn J, Song S, Chung GE, Yang SY, Kim YS, Lee JE. Predicted pro-inflammatory hs-CRP score and non-alcoholic fatty liver disease. Gastroenterol Rep (Oxf) 2023; 11:goad059. [PMID: 37842198 PMCID: PMC10568523 DOI: 10.1093/gastro/goad059] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/29/2023] [Revised: 08/07/2023] [Accepted: 08/23/2023] [Indexed: 10/17/2023] Open
Abstract
Background Non-alcoholic fatty liver disease (NAFLD) is a major contributor to liver diseases globally, yet there are limited studies investigating the impact of diet and lifestyle factors on its development. This study aimed to examine the association between the prevalence of NAFLD and predicted pro-inflammatory high-sensitivity C-reactive protein (hs-CRP) score. Methods We included 1,076 Korean adults who underwent a medical examination at the Seoul National University Hospital Gangnam Healthcare Center in Korea between May and December 2011 and updated in 2021. The predicted pro-inflammatory hs-CRP score was derived from pro-inflammatory demographic, lifestyle, dietary, and anthropometric factors, and NAFLD was diagnosed using liver ultrasound. Multivariable-adjusted odds ratios (ORs) and 95% confidence intervals (CIs) of NAFLD odds according to predicted pro-inflammatory hs-CRP score were estimated using logistic regression at a two-sided P < 0.05. Results Among the 1,076 participants, 320 had NAFLD. The multivariable-adjusted ORs and 95% CIs for NAFLD by tertiles of predicted pro-inflammatory hs-CRP score were 1.00, 3.30 (2.06, 5.30), 18.25 (10.47, 31.81; P < 0.0001) in men and women combined, 1.00, 1.77 (1.10, 2.84), and 3.26 (2.02, 5.28; P < 0.0001) among men only, and 1.00, 3.03 (1.39, 6.62), and 16.71 (7.05, 39.63; P < 0.0001) among women only. Conclusions Predicted pro-inflammatory hs-CRP score was associated with higher odds of NAFLD. Adopting dietary and lifestyle changes related to lower inflammation might be a valuable strategy for preventing NAFLD.
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Affiliation(s)
- Akinkunmi Paul Okekunle
- Department of Food and Nutrition, College of Human Ecology, Seoul National University, Seoul, Korea
- Research Institute of Human Ecology, Seoul National University, Seoul, Korea
| | - Jiyoung Youn
- Department of Food and Nutrition, College of Human Ecology, Seoul National University, Seoul, Korea
| | - Sihan Song
- Department of Food and Nutrition, College of Human Ecology, Seoul National University, Seoul, Korea
| | - Goh Eun Chung
- Healthcare System Gangnam Center, Healthcare Research Institute, Seoul National University Hospital, Seoul, Korea
| | - Sun Young Yang
- Healthcare System Gangnam Center, Healthcare Research Institute, Seoul National University Hospital, Seoul, Korea
| | - Young Sun Kim
- Healthcare System Gangnam Center, Healthcare Research Institute, Seoul National University Hospital, Seoul, Korea
| | - Jung Eun Lee
- Department of Food and Nutrition, College of Human Ecology, Seoul National University, Seoul, Korea
- Healthcare System Gangnam Center, Healthcare Research Institute, Seoul National University Hospital, Seoul, Korea
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Kim J, Lim SH, Kang HY, Song JH, Yang SY, Chung GE, Jin EH, Choi JM, Bae JH. Impact of 3-second rule for high confidence assignment on the performance of endoscopists for the real-time optical diagnosis of colorectal polyps. Endoscopy 2023; 55:945-951. [PMID: 37172938 DOI: 10.1055/a-2073-3411] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 05/15/2023]
Abstract
BACKGROUND Confusion between high and low confidence decisions in optical diagnosis hinders the implementation of real-time optical diagnosis in clinical practice. We evaluated the effect of a 3-second rule (decision time limited to 3 seconds for a high confidence assignment) in expert and nonexpert endoscopists. METHODS This single-center prospective study included eight board-certified gastroenterologists. A 2-month baseline phase used standard real-time optical diagnosis for colorectal polyps < 10 mm and was followed by a 6-month intervention phase using optical diagnosis with the 3-second rule. Performance, including high confidence accuracy, and Preservation and Incorporation of Valuable Endoscopic Innovations (PIVI) and Simple Optical Diagnosis Accuracy (SODA) thresholds, was measured. RESULTS Real-time optical diagnosis was performed on 1793 patients with 3694 polyps. There was significant improvement in high confidence accuracy between baseline and intervention phases in the nonexpert group (79.2 % vs. 86.3 %; P = 0.01) but not in the expert group (85.3 % vs. 87.5 %; P = 0.53). Using the 3-second rule improved the overall performance of PIVI and SODA in both groups. CONCLUSIONS The 3-second rule was effective in improving real-time optical diagnosis performance, especially in nonexperts.
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Affiliation(s)
- Jung Kim
- Department of Internal Medicine and Healthcare Research Institute, Healthcare System Gangnam Center, Seoul National University Hospital, Seoul, Korea
| | - Seon Hee Lim
- Department of Internal Medicine and Healthcare Research Institute, Healthcare System Gangnam Center, Seoul National University Hospital, Seoul, Korea
| | - Hae Yeon Kang
- Department of Internal Medicine and Healthcare Research Institute, Healthcare System Gangnam Center, Seoul National University Hospital, Seoul, Korea
| | - Ji Hyun Song
- Department of Internal Medicine and Healthcare Research Institute, Healthcare System Gangnam Center, Seoul National University Hospital, Seoul, Korea
| | - Sun Young Yang
- Department of Internal Medicine and Healthcare Research Institute, Healthcare System Gangnam Center, Seoul National University Hospital, Seoul, Korea
| | - Goh Eun Chung
- Department of Internal Medicine and Healthcare Research Institute, Healthcare System Gangnam Center, Seoul National University Hospital, Seoul, Korea
| | - Eun Hyo Jin
- Department of Internal Medicine and Healthcare Research Institute, Healthcare System Gangnam Center, Seoul National University Hospital, Seoul, Korea
| | - Ji Min Choi
- Department of Internal Medicine and Healthcare Research Institute, Healthcare System Gangnam Center, Seoul National University Hospital, Seoul, Korea
| | - Jung Ho Bae
- Department of Internal Medicine and Healthcare Research Institute, Healthcare System Gangnam Center, Seoul National University Hospital, Seoul, Korea
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Chung GE, Yu SJ, Yoo J, Cho Y, Lee K, Shin DW, Kim YJ, Yoon J, Han K, Cho EJ. Differential risk of 23 site-specific incident cancers and cancer-related mortality among patients with metabolic dysfunction-associated fatty liver disease: a population-based cohort study with 9.7 million Korean subjects. Cancer Commun (Lond) 2023; 43:863-876. [PMID: 37337385 PMCID: PMC10397567 DOI: 10.1002/cac2.12454] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2022] [Revised: 04/30/2023] [Accepted: 06/05/2023] [Indexed: 06/21/2023] Open
Abstract
INTRODUCTION Although an association between metabolic dysfunction-associated fatty liver disease (MAFLD) and cardiovascular disease or overall mortality has been reported, it is unclear whether there is an association between MAFLD and cancer incidence or mortality. We aimed to investigate the differential risk of all- and site-specific cancer incidence and mortality according to MAFLD subgroups categorized by additional etiologies of liver disease. METHODS Using the Korean National Health Insurance Service database, we stratified the participants into three groups: (1) single-etiology MAFLD (S-MAFLD) or MAFLD of pure metabolic origin; (2) mixed-etiology MAFLD (M-MAFLD) or MAFLD with additional etiological factor(s) (i.e., concomitant liver diseases and/or heavy alcohol consumption); and (3) non-MAFLD. Hepatic steatosis and fibrosis were defined using the fatty liver index and the BARD score, respectively. Cox proportional hazards regression was performed to estimate the risk of cancer events. RESULTS Among the 9,718,182 participants, the prevalence of S-MAFLD and M-MAFLD was 29.2% and 6.7%, respectively. During the median 8.3 years of follow-up, 510,330 (5.3%) individuals were newly diagnosed with cancer, and 122,774 (1.3%) cancer-related deaths occurred among the entire cohort. Compared with the non-MAFLD group, the risk of all-cancer incidence and mortality was slightly higher among patients in the S-MAFLD group (incidence, adjusted hazard ratio [aHR] = 1.03; 95% confidence interval [CI]: 1.02-1.04; mortality, aHR = 1.06; 95% CI: 1.04-1.08) and highest among patients with M-MAFLD group (incidence, aHR = 1.31; 95% CI: 1.29-1.32; mortality, aHR = 1.45; 95% CI: 1.42-1.48, respectively). The M-MAFLD with fibrosis group (BARD score ≥ 2) showed the highest relative risk of all-cancer incidence (aHR = 1.38, 95% CI = 1.36-1.39), followed by the M-MAFLD without fibrosis group (aHR = 1.09, 95% CI = 1.06-1.11). Similar trends were observed for cancer-related mortality. CONCLUSIONS MAFLD classification, by applying additional etiologies other than pure metabolic origin, can be used to identify a subgroup of patients with poor cancer-related outcomes.
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Affiliation(s)
- Goh Eun Chung
- Department of Internal Medicine and Healthcare Research InstituteSeoul National University Hospital Healthcare System Gangnam CenterSeoulRepublic of Korea
| | - Su Jong Yu
- Department of Internal Medicine and Liver Research InstituteSeoul National University College of MedicineSeoulRepublic of Korea
| | - Jeong‐Ju Yoo
- Department of Gastroenterology and HepatologySoonchunhyang University Bucheon HospitalBucheonGyeonggi‐doRepublic of Korea
| | - Yuri Cho
- Center for Liver and Pancreatobiliary CancerNational Cancer CenterGoyangGyeonggi‐doRepublic of Korea
| | - Kyu‐na Lee
- Department of Biomedicine & Health ScienceCatholic University of KoreaSeoulRepublic of Korea
| | - Dong Wook Shin
- Department of Family Medicine/ Supportive care centerSamsung Medical CenterSungkyunkwan University School of MedicineSeoulRepublic of Korea
- Department of Clinical Research Design and Evaluation/Department of Digital HealthSamsung Advanced Institute for Health ScienceSeoulRepublic of Korea
| | - Yoon Jun Kim
- Department of Internal Medicine and Liver Research InstituteSeoul National University College of MedicineSeoulRepublic of Korea
| | - Jung‐Hwan Yoon
- Department of Internal Medicine and Liver Research InstituteSeoul National University College of MedicineSeoulRepublic of Korea
| | - Kyungdo Han
- Department of Statistics and Actuarial ScienceSoongsil UniversitySeoulRepublic of Korea
| | - Eun Ju Cho
- Department of Internal Medicine and Liver Research InstituteSeoul National University College of MedicineSeoulRepublic of Korea
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Chung GE, Han K, Lee KN, Bae JH, Yang SY, Choi SY, Yim JY, Heo NJ. Association between fatty liver index and risk of end-stage renal disease stratified by kidney function in patients with type 2 diabetes: A nationwide population-based study. Diabetes Metab 2023; 49:101454. [PMID: 37244418 DOI: 10.1016/j.diabet.2023.101454] [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: 03/23/2023] [Revised: 04/27/2023] [Accepted: 05/01/2023] [Indexed: 05/29/2023]
Abstract
OBJECTIVE The effects of nonalcoholic fatty liver disease on the risk of end-stage renal disease (ESRD) remain unclear. We investigated the association between the fatty liver index (FLI) and risk of ESRD in patients with type 2 diabetes. METHODS This population-based observational cohort study enrolled patients with diabetes who underwent health screening between 2009 and 2012 and utilized data from the Korean National Health Insurance Services. The FLI functioned as a surrogate marker for the presence of hepatic steatosis. Chronic kidney disease (CKD) was defined as an estimated glomerular filtration rate < 60 ml/min/1.73 m² calculated using the Modification of Diet in Renal Disease equation. We performed Cox proportional hazards regression. RESULTS Incident ESRD developed in 19,476 of 1,900,598 patients with type 2 diabetes during a median follow-up of 7.2 years. After adjusting for conventional risk factors, patients with high FLI scores had a higher risk for ESRD: FLI, 30-59 [hazard ratio (HR) = 1.124; 95% confidence interval (CI), 1.083-1.166]; FLI ≥ 60 [HR = 1.278; 95% CI, 1.217-1.343] compared with those with FLI < 30. The association between a high FLI score (≥ 60) and incident ESRD was more prominent in women than in men (male, FLI ≥60: HR, 1.106; 95% CI = 1.041-1.176 and female, FLI ≥ 60: HR, 1.835; 95% CI = 1.689-1.995). The association between a high FLI score (≥ 60) and the risk of ESRD differed according to baseline kidney function. High FLI scores increased the risk of ESRD (HR = 1.268; 95% CI, 1.198-1.342) in patients with CKD at baseline. CONCLUSION High FLI scores are associated with a greater risk of ESRD in patients with type 2 diabetes with CKD at baseline. Close monitoring and appropriate management of hepatic steatosis may aid in preventing the progression of kidney dysfunction in patients with type 2 diabetes and CKD.
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Affiliation(s)
- Goh Eun Chung
- Department of Internal Medicine, Healthcare Research Institute, Gangnam Healthcare Center, Seoul National University Hospital, Seoul, Republic of Korea
| | - Kyungdo Han
- Department of Biostatistics, College of Medicine, The Soongsil University, Seoul, Republic of Korea
| | - Kyu-Na Lee
- Department of Biomedicine & Health Science, Catholic University of Korea, Seoul, Republic of Korea
| | - Jung Ho Bae
- Department of Internal Medicine, Healthcare Research Institute, Gangnam Healthcare Center, Seoul National University Hospital, Seoul, Republic of Korea
| | - Sun Young Yang
- Department of Internal Medicine, Healthcare Research Institute, Gangnam Healthcare Center, Seoul National University Hospital, Seoul, Republic of Korea
| | - Su-Yeon Choi
- Department of Internal Medicine, Healthcare Research Institute, Gangnam Healthcare Center, Seoul National University Hospital, Seoul, Republic of Korea
| | - Jeong Yoon Yim
- Department of Internal Medicine, Healthcare Research Institute, Gangnam Healthcare Center, Seoul National University Hospital, Seoul, Republic of Korea
| | - Nam Ju Heo
- Department of Internal Medicine, Healthcare Research Institute, Gangnam Healthcare Center, Seoul National University Hospital, Seoul, Republic of Korea.
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Song JH, Seo JY, Jin EH, Chung GE, Kim YS, Bae JH, Kim S, Han KD, Yang SY. Association of changes in obesity and abdominal obesity status with early-onset colorectal cancer risk: a nationwide population-based cohort study. Front Med (Lausanne) 2023; 10:1208489. [PMID: 37415766 PMCID: PMC10321412 DOI: 10.3389/fmed.2023.1208489] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2023] [Accepted: 06/05/2023] [Indexed: 07/08/2023] Open
Abstract
Background and aims The incidence of early-onset colorectal cancer (EO-CRC, diagnosed before 50 years of age) has increased in recent decades. The aim of this study was to investigate the association between changes in obesity status and EO-CRC risk. Methods From a nationwide population-based cohort, individuals <50 years old who participated in the national health checkup program in both 2009 and 2011 were included. Obesity was defined as a body mass index ≥25 kg/m2. Abdominal obesity was defined as a waist circumference ≥ 90 cm in men and ≥ 85 cm in women. Participants were classified into 4 groups according to the change in obesity (normal/normal, normal/obese, obese/normal, persistent obese) and abdominal obesity (normal/normal, normal/abdominal obesity, abdominal obesity/normal, persistent abdominal obesity) status. Participants were followed up until 2019 and censored when they became 50 years old. Results Among 3,340,635 participants, 7,492 patients were diagnosed with EO-CRC during 7.1 years of follow-up. The risk of EO-CRC was higher in the persistent obesity and persistent abdominal obesity groups than in the normal/normal groups (hazard ratio (HR) [95% confidence interval (CI)] = 1.09 [1.03-1.16] and 1.18 [1.09-1.29], respectively). Participants with both persistent obesity and abdominal obesity had a higher EO-CRC risk than those in the normal/normal groups for both [HR (95% CI) = 1.19 (1.09-1.30)]. Conclusion Persistent obesity and persistent abdominal obesity before the age of 50 are associated with a slightly increased risk of EO-CRC. Addressing obesity and abdominal obesity in young individuals might be beneficial in reducing the risk of EO-CRC.
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Affiliation(s)
- Ji Hyun Song
- Department of Internal Medicine and Healthcare Research Institute, Healthcare System Gangnam Center, Seoul National University Hospital, Seoul, Republic of Korea
| | - Ji Yeon Seo
- Department of Internal Medicine and Healthcare Research Institute, Healthcare System Gangnam Center, Seoul National University Hospital, Seoul, Republic of Korea
| | - Eun Hyo Jin
- Department of Internal Medicine and Healthcare Research Institute, Healthcare System Gangnam Center, Seoul National University Hospital, Seoul, Republic of Korea
| | - Goh Eun Chung
- Department of Internal Medicine and Healthcare Research Institute, Healthcare System Gangnam Center, Seoul National University Hospital, Seoul, Republic of Korea
| | - Young Sun Kim
- Department of Internal Medicine and Healthcare Research Institute, Healthcare System Gangnam Center, Seoul National University Hospital, Seoul, Republic of Korea
| | - Jung Ho Bae
- Department of Internal Medicine and Healthcare Research Institute, Healthcare System Gangnam Center, Seoul National University Hospital, Seoul, Republic of Korea
| | - Sunmie Kim
- Department of Obstetrics and Gynecology, Healthcare Research Institute, Healthcare System Gangnam Center, Seoul National University Hospital, Seoul, Republic of Korea
| | - Kyung-Do Han
- Department of Obstetrics and Gynecology, Healthcare Research Institute, Healthcare System Gangnam Center, Seoul National University Hospital, Seoul, Republic of Korea
| | - Sun Young Yang
- Department of Internal Medicine and Healthcare Research Institute, Healthcare System Gangnam Center, Seoul National University Hospital, Seoul, Republic of Korea
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9
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Cho EJ, Chung GE, Yoo JJ, Cho Y, Shin DW, Kim YJ, Yoon JH, Han K, Yu SJ. The association between alcohol consumption and the risk of hepatocellular carcinoma according to glycemic status in Korea: A nationwide population-based study. PLoS Med 2023; 20:e1004244. [PMID: 37307271 PMCID: PMC10259796 DOI: 10.1371/journal.pmed.1004244] [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] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/15/2022] [Accepted: 05/19/2023] [Indexed: 06/14/2023] Open
Abstract
BACKGROUND Alcohol and diabetes are known risk factors for hepatocellular carcinoma (HCC); however, it is unclear whether the association between alcohol consumption and HCC risk differs by fasting serum glucose level and diabetes. We investigated the dose-response relationship between alcohol consumption and the risk of HCC according to glycemic status. METHODS AND FINDINGS This population-based observational cohort study included patients who underwent general health checkups in 2009 using the Korean National Health Insurance Service Database. The primary outcome was HCC incidence, and Cox proportional hazard regression analysis was performed to estimate the relationship between alcohol consumption and HCC risk according to glycemic status. A total of 34,321 patients newly diagnosed with HCC were observed in the median follow-up period of 8.3 years. In the multivariable model, we adjusted for age, sex, smoking, regular exercise, income, hypertension, dyslipidemia, and body mass index. Mild-to-moderate alcohol consumption increased the risk of HCC in all glycemic statuses (normoglycemia: hazard ratio [HR], 1.06; 95% confidence interval [CI], 1.02 to 1.10; prediabetes: HR, 1.19; 95% CI, 1.14 to 1.24; and diabetes: HR, 2.02; 95% CI, 1.93 to 2.11) compared to normoglycemic nondrinking. Heavy alcohol consumption also increased the risk of HCC in all glycemic statuses (normoglycemia: HR, 1.39; 95% CI, 1.32 to 1.46; prediabetes: HR, 1.67; 95% CI, 1.58 to 1.77; and diabetes: HR, 3.29; 95% CI, 3.11 to 3.49) compared to normoglycemic nondrinking. Since alcohol consumption information in this study was based on a self-administered questionnaire, there may be a possibility of underestimation. Although we excluded patients with a history of viral hepatitis using diagnosis codes, we could not obtain information on hepatitis B or hepatitis C serum markers. CONCLUSIONS Both mild-to-moderate and heavy alcohol consumption was associated with an increased risk of HCC in all glycemic statuses. The increased risk of HCC according to alcohol consumption was the highest in the diabetes group, suggesting that more intensive alcohol abstinence is required for patients with diabetes.
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Affiliation(s)
- Eun Ju Cho
- Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Goh Eun Chung
- Department of Internal Medicine and Healthcare Research Institute, Seoul National University Hospital Healthcare System Gangnam Center, Seoul, Republic of Korea
| | - Jeong-Ju Yoo
- Department of Internal Medicine, Division of Gastroenterology and Hepatology, Soonchunhyang University Bucheon Hospital, Gyeonggi-do, Republic of Korea
| | - Yuri Cho
- Center for Liver and Pancreatobiliary Cancer, National Cancer Center, Goyang, Republic of Korea
| | - Dong Wook Shin
- Department of Family Medicine/Supportive Care Center, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
- Department of Clinical Research Design and Evaluation/Department of Digital Health, Samsung Advanced Institute for Health Science, Seoul, Republic of Korea
| | - Yoon Jun Kim
- Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Jung-Hwan Yoon
- Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Kyungdo Han
- Department of Statistics and Actuarial Science, Soongsil University, Seoul, Republic of Korea
| | - Su Jong Yu
- Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, Republic of Korea
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10
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Seo JY, Jin EH, Chung GE, Kim YS, Bae JH, Yim JY, Han KD, Yang SY. The risk of colorectal cancer according to obesity status at four-year intervals: a nationwide population-based cohort study. Sci Rep 2023; 13:8928. [PMID: 37264099 DOI: 10.1038/s41598-023-36111-6] [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: 01/31/2023] [Accepted: 05/30/2023] [Indexed: 06/03/2023] Open
Abstract
Obesity is a risk factor for colorectal cancer. However, the effect of body weight change on colorectal cancer is uncertain. This study aimed to investigate the relationship between difference in body mass index and the risk of colorectal cancer. In this nationwide population-based cohort study, participants of the national cancer screening program in 2005 and 2009 were enrolled. Difference of body mass index was calculated from screening data from 2005 and 2009. Participants were divided into four groups according to direction of obesity status: non-obese/non-obese, non-obese/obese, obese/non-obese, and obese/obese. The effect of differences in body mass index on colorectal cancer was analyzed. Among 3,858,228 participants, 47,894 (1.24%) participants were newly diagnosed with colorectal cancer during the 9.2 years of follow-up. The incidence of colorectal cancer was higher in the obese/obese group than the non-obese/non-obese group (hazard ratio = 1.08 [1.06-1.11], P trend < 0.001). The men in the obese/obese group had a higher risk of colon cancer than women (hazard ratio = 1.13 [1.10-1.17] in men, and hazard ratio = 1.04 [1.01-1.18] in women, P = 0.001). Persistent obesity was associated with a higher risk of incidence of colorectal cancer.
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Affiliation(s)
- Ji Yeon Seo
- Department of Internal Medicine and Healthcare Research Institute, Healthcare System Gangnam Center, Seoul National University Hospital, 39F Gangnam Finance Center 152, Teheran-ro, Gangnam-gu, Seoul, 06236, South Korea
| | - Eun Hyo Jin
- Department of Internal Medicine and Healthcare Research Institute, Healthcare System Gangnam Center, Seoul National University Hospital, 39F Gangnam Finance Center 152, Teheran-ro, Gangnam-gu, Seoul, 06236, South Korea
| | - Goh Eun Chung
- Department of Internal Medicine and Healthcare Research Institute, Healthcare System Gangnam Center, Seoul National University Hospital, 39F Gangnam Finance Center 152, Teheran-ro, Gangnam-gu, Seoul, 06236, South Korea
| | - Young Sun Kim
- Department of Internal Medicine and Healthcare Research Institute, Healthcare System Gangnam Center, Seoul National University Hospital, 39F Gangnam Finance Center 152, Teheran-ro, Gangnam-gu, Seoul, 06236, South Korea
| | - Jung Ho Bae
- Department of Internal Medicine and Healthcare Research Institute, Healthcare System Gangnam Center, Seoul National University Hospital, 39F Gangnam Finance Center 152, Teheran-ro, Gangnam-gu, Seoul, 06236, South Korea
| | - Jeong Yoon Yim
- Department of Internal Medicine and Healthcare Research Institute, Healthcare System Gangnam Center, Seoul National University Hospital, 39F Gangnam Finance Center 152, Teheran-ro, Gangnam-gu, Seoul, 06236, South Korea
| | - Kyung-Do Han
- Department of Statistics and Actuarial Science, Soongsil University, 369 Sangdo-ro, Dongjak-gu, Seoul, 06978, South Korea.
| | - Sun Young Yang
- Department of Internal Medicine and Healthcare Research Institute, Healthcare System Gangnam Center, Seoul National University Hospital, 39F Gangnam Finance Center 152, Teheran-ro, Gangnam-gu, Seoul, 06236, South Korea.
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11
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Chung GE, Cho EJ, Kim MJ, Yoo JJ, Cho Y, Lee KN, Han K, Kim YJ, Yoon JH, Shin DW, Yu SJ. Association between the fatty liver index and the risk of fracture among individuals over the age of 50 years: a nationwide population-based study. Front Endocrinol (Lausanne) 2023; 14:1156996. [PMID: 37260443 PMCID: PMC10227615 DOI: 10.3389/fendo.2023.1156996] [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] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/02/2023] [Accepted: 04/19/2023] [Indexed: 06/02/2023] Open
Abstract
Background and purpose The association between fatty liver and fracture risk has not been firmly established. In this study, we investigated the relationship between the fatty liver index (FLI) and the incidence of fractures among individuals ≥50 years of age, using a nationwide population-based cohort. Methods Data from the Korean National Health Insurance System between January 2009 and December 2019 were analyzed using the Cox proportional hazards model. Fatty liver status was defined using FLI. Newly diagnosed fractures were identified based on insurance claim data. Results Among the 3,384,457 individuals who met our inclusion criteria over the study period, 444,203 cases of incident fractures were identified over a median follow-up of 10.3 years. On multivariate analysis, the risk of fracture was significantly higher among individuals with a higher FLI score compared to those with an FLI<30, with adjusted hazard ratio [aHR] and 95% confidence interval [CI] as follows: FLI 30-59 group, aHR 1.04 and 95% CI 1.03-1.05; and FLI ≥60 group, aHR 1.12 and 95% CI 1.10-1.13. A higher FLI was associated with a greater risk of hip (aHR 1.23 and 1.52 for the FLI 30-59 and FLI ≥60 group, respectively) and vertebral fracture (aHR 1.08 and 1.16 for the FLI 30-59 and FLI≥60 group, respectively). The association between the risk for fracture and FLI ≥60 was prominent for non-obese than obese individuals (aHR 1.25 and 95% CI, 1.22-1.27 versus 1.06 and 1.05-1.08, respectively). Conclusions A high FLI is associated with an increased risk of hip and vertebral fractures among individuals ≥50 years of age, suggestive of an association between a higher FLI and osteoporotic fractures.
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Affiliation(s)
- Goh Eun Chung
- Department of Internal Medicine and Healthcare Research Institute, Seoul National University Hospital Healthcare System Gangnam Center, Seoul, Republic of Korea
| | - Eun Ju Cho
- Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Min Joo Kim
- Department of Internal Medicine and Healthcare Research Institute, Seoul National University Hospital Healthcare System Gangnam Center, Seoul, Republic of Korea
| | - Jeong-Ju Yoo
- Department of Gastroenterology and Hepatology, Soonchunhyang University Bucheon Hospital, Bucheon, Gyeonggi-do, Republic of Korea
| | - Yuri Cho
- Center for Liver and Pancreatobiliary Cancer, National Cancer Center, Goyang, Republic of Korea
| | - Kyu-na Lee
- Department of Biomedicine & Health Science, Catholic University of Korea, Seoul, Republic of Korea
| | - Kyungdo Han
- Department of Statistics and Actuarial Science, Soongsil University, Seoul, Republic of Korea
| | - Yoon Jun Kim
- Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Jung-Hwan Yoon
- Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Dong Wook Shin
- Department of Family Medicine/Supportive Care Center, Samsung Medical Center Supportive Care Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
- Department of Clinical Research Design and Evaluation/Department of Digital Health, Samsung Advanced Institute for Health Science, Seoul, Republic of Korea
| | - Su Jong Yu
- Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, Republic of Korea
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12
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Chung GE, Oh S, Ahn DW, Kim SH, Jung YJ, Kim JW, Kim BG, Lee KL, Jeong JB. Effects of additive interactions among obesity, visceral adiposity, and sarcopenia on nonalcoholic fatty liver disease. Sci Rep 2023; 13:3628. [PMID: 36869158 PMCID: PMC9984466 DOI: 10.1038/s41598-023-30833-3] [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] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2022] [Accepted: 03/02/2023] [Indexed: 03/05/2023] Open
Abstract
Although the association of nonalcoholic fatty liver disease (NAFLD) with obesity or sarcopenia is known, few studies have investigated the combined effect of various body composition parameters on the risk of NAFLD. Thus, the aim of this study was to evaluate effects of interactions between various body composition parameters, including obesity, visceral adiposity, and sarcopenia, on NAFLD. Data of subjects who underwent health checkups between 2010 and December 2020 were retrospectively analyzed. Body composition parameters including appendicular skeletal muscle mass (ASM) and visceral adiposity were assessed using bioelectrical impedance analysis. Sarcopenia was defined as ASM/weight beyond two standard deviations below the gender-specific mean for healthy young adults. NAFLD was diagnosed using hepatic ultrasonography. Interaction analyses, including relative excess risk due to interaction (RERI), synergy index (SI), and attributable proportion due to interaction (AP), were performed. Among a total of 17,540 subjects (mean age: 46.7 years, 49.4% males), the prevalence of NAFLD was 35.9%. The odds ratio (OR) of interaction between obesity and visceral adiposity affecting NAFLD was 9.14 (95% CI: 8.29-10.07). The RERI was 2.63 (95% CI: 1.71-3.55), SI was 1.48 (95% CI: 1.29-1.69) and AP was 29%. The OR of interaction between obesity and sarcopenia affecting NAFLD was 8.46 (95% CI: 7.01-10.21). The RERI was 2.21 (95% CI: 0.51-3.90). SI was 1.42(95% CI: 1.11-1.82) and AP was 26%. The OR of interaction between sarcopenia and visceral adiposity affecting NAFLD was 7.25 (95% CI: 6.04-8.71), however, there was no significant additive interaction with RERI = 0.87 (95% CI: -0.76 to 2.51). Obesity, visceral adiposity, and sarcopenia were found to be positively associated with NAFLD. Obesity, visceral adiposity, and sarcopenia were found to have additive interaction effects on NAFLD.
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Affiliation(s)
- Goh Eun Chung
- Department of Internal Medicine and Healthcare Research Institute, Seoul National University Hospital Healthcare System Gangnam Center, Seoul, Republic of Korea
| | - Sohee Oh
- Medical Research Collaborating Center, Seoul Metropolitan Government Seoul National University Boramae Medical Center, Seoul, Republic of Korea
| | - Dong-Won Ahn
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul Metropolitan Government Seoul National University Boramae Medical Center, 20 Boramae-ro 5-gil, Dongjak-gu, Seoul, 07061, Republic of Korea
| | - Su Hwan Kim
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul Metropolitan Government Seoul National University Boramae Medical Center, 20 Boramae-ro 5-gil, Dongjak-gu, Seoul, 07061, Republic of Korea
- Health Care Center, Seoul Metropolitan Government Seoul National University Boramae Medical Center, Seoul, Republic of Korea
| | - Yong Jin Jung
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul Metropolitan Government Seoul National University Boramae Medical Center, 20 Boramae-ro 5-gil, Dongjak-gu, Seoul, 07061, Republic of Korea
| | - Ji Won Kim
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul Metropolitan Government Seoul National University Boramae Medical Center, 20 Boramae-ro 5-gil, Dongjak-gu, Seoul, 07061, Republic of Korea
| | - Byeong Gwan Kim
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul Metropolitan Government Seoul National University Boramae Medical Center, 20 Boramae-ro 5-gil, Dongjak-gu, Seoul, 07061, Republic of Korea
| | - Kook Lae Lee
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul Metropolitan Government Seoul National University Boramae Medical Center, 20 Boramae-ro 5-gil, Dongjak-gu, Seoul, 07061, Republic of Korea
| | - Ji Bong Jeong
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul Metropolitan Government Seoul National University Boramae Medical Center, 20 Boramae-ro 5-gil, Dongjak-gu, Seoul, 07061, Republic of Korea.
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13
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Lee HW, Chung GE, Koo BK, Sim H, Choi M, Lee DH, Choi SH, Kwak SH, Kim DK, Kim W. Impact of Evolutionary Changes in Nonalcoholic Fatty Liver Disease on Lung Function Decline. Gut Liver 2023; 17:139-149. [PMID: 35611668 PMCID: PMC9840916 DOI: 10.5009/gnl210545] [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] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/26/2021] [Revised: 02/23/2022] [Accepted: 02/24/2022] [Indexed: 02/01/2023] Open
Abstract
Background/Aims A relationship between fatty liver and lung function impairment has been identified, and both are independently associated with metabolic dysfunction. However, the temporal relationship between changes in fatty liver status and lung function and their genome-wide association remain unclear. Methods This longitudinal cohort consisted of subjects who received serial health check-ups, including liver ultrasonography and spirometry, for ≥3 years between 2003 and 2015. Lung function decline rates were classified as "slow" and "accelerated" and compared among four different sonographic changes in steatosis status: "normal," "improved," "worsened," and "persistent." A genome-wide association study was conducted between the two groups: normal/improved steatosis with a slow decline in lung function versus worsened/persistent steatosis with an accelerated decline in lung function. Results Among 6,149 individuals, the annual rates of decline in forced vital capacity (FVC) and forced expiratory volume measured in the first second of exhalation (FEV1) were higher in the worsened/persistent steatosis group than in the normal/improved steatosis group. In multivariable analysis, persistent or worsened status of fatty liver was significantly associated with accelerated declines in FVC (persistent status, odds ratio [OR]=1.22, 95% confidence interval [CI]=1.04-1.44; worsened status, OR=1.30, 95% CI=1.12-1.50), while improved status of fatty liver was significantly associated with slow declines in FEV1 (OR=0.77, 95% CI=0.64-0.92). The PNPLA3 risk gene was most strongly associated with steatosis status change and accelerated declines in FVC (rs12483959, p=2.61×10-7) and FEV1 (rs2294433, p=3.69×10-8). Conclusions Regression of fatty liver is related to lung function decline. Continuing efforts to improve fatty liver may preserve lung function, especially for subjects with a high genetic risk.
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Affiliation(s)
- Hyun Woo Lee
- Division of Respiratory and Critical Care, Department of Internal Medicine, Seoul Metropolitan Government Seoul National University Boramae Medical Center, Seoul, Korea
| | - Goh Eun Chung
- Department of Internal Medicine, Healthcare System Gangnam Center, Seoul National University Hospital, Seoul, Korea
| | - Bo Kyung Koo
- Division of Endocrinology, Department of Internal Medicine, Seoul Metropolitan Government Seoul National University Boramae Medical Center, Seoul, Korea
| | - Hyungtai Sim
- Department of Biomedical Sciences, Seoul National University College of Medicine, Seoul, Korea
| | - Murim Choi
- Department of Biomedical Sciences, Seoul National University College of Medicine, Seoul, Korea
| | - Dong Hyeon Lee
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Seoul Metropolitan Government Seoul National University Boramae Medical Center, Seoul, Korea
| | - Seung Ho Choi
- Department of Internal Medicine, Healthcare System Gangnam Center, Seoul National University Hospital, Seoul, Korea
| | - Soo Heon Kwak
- Department of Internal Medicine, Seoul National University Hospital, Seoul, Korea
| | - Deog Kyeom Kim
- Division of Respiratory and Critical Care, Department of Internal Medicine, Seoul Metropolitan Government Seoul National University Boramae Medical Center, Seoul, Korea,Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Korea,Corresponding AuthorDeog Kyeom Kim, ORCIDhttps://orcid.org/0000-0001-9379-8098, E-mail
| | - Won Kim
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Seoul Metropolitan Government Seoul National University Boramae Medical Center, Seoul, Korea,Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Korea,Won Kim, ORCIDhttps://orcid.org/0000-0002-2926-1007, E-mail
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14
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Chung GE, Yu SJ, Yoo JJ, Cho Y, Lee KN, Shin DW, Kim D, Kim YJ, Yoon JH, Han K, Cho EJ. Lean or diabetic subtypes predict increased all-cause and disease-specific mortality in metabolic-associated fatty liver disease. BMC Med 2023; 21:4. [PMID: 36600263 PMCID: PMC9814304 DOI: 10.1186/s12916-022-02716-3] [Citation(s) in RCA: 7] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/26/2022] [Accepted: 12/16/2022] [Indexed: 01/06/2023] Open
Abstract
BACKGROUND Metabolic-associated fatty liver disease (MAFLD) encompasses diverse disease groups with potentially heterogeneous clinical outcomes. We investigated the risk of all-cause and disease-specific mortality in MAFLD subgroups. METHODS Using the Korean National Health Insurance Service database, participants were divided into four subgroups: no MAFLD, MAFLD-diabetes, MAFLD-overweight/obese, and MAFLD-lean. Hazard ratios (HRs) and 95% confidence interval (CI) values for all-cause and disease-specific mortality according to MAFLD subgroups were analyzed using Cox proportional hazards models. RESULTS Among 9,935,314 participants, those with MAFLD-diabetes showed the highest risk of all-cause and disease-specific mortality. The HRs (95% CI) for all-cause mortality were 1.61 (1.59-1.63), 1.36 (1.34-1.38), and 1.19 (1.18-1.20) in the MAFLD-diabetes, MAFLD-lean, and MAFLD-overweight/obese groups, respectively. The magnitude of cardiovascular disease and cancer-related risk showed the same pattern. The risk of liver-related mortality in the MAFLD-lean group (HR: 2.84, 95% CI: 2.72-2.97) was comparable with that in the MAFLD-diabetes group (HR: 2.85, 95% CI: 2.75-2.95). When stratified by body mass index, liver-related mortality was the highest in MAFLD-lean individuals in the underweight group (HR, 5.03, 95% CI: 4.23-5.97). CONCLUSIONS The MAFLD-lean and MAFLD-diabetes groups had a higher risk of all-cause and disease-specific mortality than did the MAFLD-overweight/obese group. Classifying MAFLD subgroups based on metabolic phenotypes might help risk stratification of patients with MAFLD.
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Affiliation(s)
- Goh Eun Chung
- Department of Internal Medicine and Healthcare Research Institute, Seoul National University Hospital Healthcare System Gangnam Center, Seoul, Republic of Korea
| | - Su Jong Yu
- Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, 101 Daehak-No, Jongno-Gu, Seoul, 03080, Republic of Korea
| | - Jeong-Ju Yoo
- Department of Gastroenterology and Hepatology, Soonchunhyang University Bucheon Hospital, Bucheon, Gyeonggi-Do, Republic of Korea
| | - Yuri Cho
- Center for Liver and Pancreatobiliary Cancer, National Cancer Center, Goyang, Republic of Korea
| | - Kyu-Na Lee
- Department of Biomedicine and Health Science, Catholic University, Seoul, Republic of Korea
| | - Dong Wook Shin
- Department of Family Medicine and Supportive Care Center, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea.,Department of Clinical Research Design and Evaluation and Department of Digital Health, Samsung Advanced Institute for Health Science, Seoul, Republic of Korea
| | - Donghee Kim
- Division of Gastroenterology and Hepatology, Stanford University School of Medicine, Stanford, CA, USA
| | - Yoon Jun Kim
- Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, 101 Daehak-No, Jongno-Gu, Seoul, 03080, Republic of Korea
| | - Jung-Hwan Yoon
- Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, 101 Daehak-No, Jongno-Gu, Seoul, 03080, Republic of Korea
| | - Kyungdo Han
- Department of Statistics and Actuarial Science, Soongsil University, Seoul, Republic of Korea.
| | - Eun Ju Cho
- Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, 101 Daehak-No, Jongno-Gu, Seoul, 03080, Republic of Korea.
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15
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Chung GE, Jeong SM, Cho EJ, Yoon JW, Yoo JJ, Cho Y, Lee KN, Shin DW, Kim YJ, Yoon JH, Han K, Yu SJ. The association of fatty liver index and BARD score with all-cause and cause-specific mortality in patients with type 2 diabetes mellitus: a nationwide population-based study. Cardiovasc Diabetol 2022; 21:273. [PMID: 36474232 PMCID: PMC9727979 DOI: 10.1186/s12933-022-01691-6] [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] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/11/2022] [Accepted: 11/08/2022] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND Type 2 diabetes and non-alcoholic fatty liver disease (NAFLD) commonly coexist. However, NAFLD's effect on mortality in Asian patients with type 2 diabetes awaits full elucidation. Therefore, we examined NAFLD-related all-cause and cause-specific mortality in a nationwide Asian population with type 2 diabetes. METHODS We included patients who had undergone general health checkups between 2009 and 2012 using the National Health Insurance Service database linked to death-certificate data. Hepatic steatosis was defined as a fatty liver index (FLI) ≥ 60, and advanced hepatic fibrosis was determined using the BARD score. FINDINGS During the follow-up period of 8.1 years, 222,242 deaths occurred, with a mortality rate of 14.3/1000 person-years. An FLI ≥ 60 was significantly associated with increased risks of all-cause and cause-specific mortality including cardiovascular disease (CVD)-, cancer-, and liver disease (FLI ≥ 60: hazard ratio [HR] = 1.02, 95% confidence interval [CI] 1.01-1.03 for all-cause; 1.07, 1.04-1.10 for CVD; 1.12, 1.09-1.14 for cancer; and 2.63, 2.50-2.77 for liver disease). Those with an FLI ≥ 60 and fibrosis (BARD ≥ 2) exhibited increased risks of all-cause (HR, 95% CI 1.11, 1.10-1.12), CVD- (HR, 95% CI 1.11, 1.09-1.14), cancer- (HR, 95% CI 1.17, 1.15-1.19), and liver disease-related (HR, 95% CI 2.38, 2.29-2.49) mortality. CONCLUSION Hepatic steatosis and advanced fibrosis were significantly associated with risks of overall and cause-specific mortality in patients with type 2 diabetes. Our results provide evidence that determining the presence of hepatic steatosis and/or fibrosis potentially plays a role in risk stratification of mortality outcomes in patients with type 2 diabetes mellitus.
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Affiliation(s)
- Goh Eun Chung
- grid.412484.f0000 0001 0302 820XDepartment of Internal Medicine and Healthcare Research Institute, Seoul National University Hospital Healthcare System Gangnam Center, Seoul, Republic of Korea
| | - Su-Min Jeong
- grid.264381.a0000 0001 2181 989XDepartment of Family Medicine/Supportive Care Center, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea ,grid.31501.360000 0004 0470 5905Department of Medicine, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Eun Ju Cho
- grid.31501.360000 0004 0470 5905Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, 101 Daehak-no, Jongno-Gu, Seoul, 03080 Republic of Korea
| | - Ji Won Yoon
- grid.412484.f0000 0001 0302 820XDepartment of Internal Medicine and Healthcare Research Institute, Seoul National University Hospital Healthcare System Gangnam Center, Seoul, Republic of Korea
| | - Jeong-Ju Yoo
- grid.412678.e0000 0004 0634 1623Department of Internal Medicine, Division of Gastroenterology and Hepatology, Soonchunhyang University Bucheon Hospital, Bucheon, Gyeonggi-do Republic of Korea
| | - Yuri Cho
- grid.410914.90000 0004 0628 9810Center for Liver and Pancreatobiliary Cancer, National Cancer Center, Goyang, Republic of Korea
| | - Kyu-na Lee
- grid.411947.e0000 0004 0470 4224Department of Biomedicine & Health Science, Catholic University of Korea, Seoul, Republic of Korea
| | - Dong Wook Shin
- grid.264381.a0000 0001 2181 989XDepartment of Family Medicine/Supportive Care Center, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea ,Department of Clinical Research Design and Evaluation/Department of Digital Health, Samsung Advanced Institute for Health Science, Seoul, Republic of Korea
| | - Yoon Jun Kim
- grid.31501.360000 0004 0470 5905Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, 101 Daehak-no, Jongno-Gu, Seoul, 03080 Republic of Korea
| | - Jung-Hwan Yoon
- grid.31501.360000 0004 0470 5905Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, 101 Daehak-no, Jongno-Gu, Seoul, 03080 Republic of Korea
| | - Kyungdo Han
- grid.263765.30000 0004 0533 3568Department of Statistics and Actuarial Science, Soongsil University, 369 Sangdo-Ro, Dongjak-Gu, Seoul, 06978 Republic of Korea
| | - Su Jong Yu
- grid.31501.360000 0004 0470 5905Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, 101 Daehak-no, Jongno-Gu, Seoul, 03080 Republic of Korea
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Seo JY, Cho EJ, Kim MJ, Kwak MS, Yang JI, Chung SJ, Yim JY, Yoon JW, Chung GE. The relationship between metabolic dysfunction-associated fatty liver disease and low muscle mass in an asymptomatic Korean population. J Cachexia Sarcopenia Muscle 2022; 13:2953-2960. [PMID: 36222309 PMCID: PMC9745451 DOI: 10.1002/jcsm.13099] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [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: 04/08/2022] [Revised: 08/23/2022] [Accepted: 09/06/2022] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND Metabolic (dysfunction)-associated fatty liver disease (MAFLD) emphasizes the metabolic dysfunction in nonalcoholic fatty liver disease (NAFLD). Although the relationship between low muscle mass and NAFLD has been suggested, the effect of MAFLD on low muscle mass is yet to be investigated. In this study, we examined the relationship between MAFLD and low muscle mass in an asymptomatic Korean population. METHODS Examinees who underwent FibroScan® and bioelectrical impedance analyses on the same day during the period of June 2017 to December 2019 were included. Hepatic steatosis was diagnosed using controlled attenuation parameter (CAP) with two cut-off values of 248 and 294 dB/m. Low muscle mass was defined based on appendicular skeletal muscle mass/body weight (wt) or body mass index (BMI) ratios of two standard deviations below the sex-specific mean for healthy young adults. Subjects were divided into four subgroups: diabetic MAFLD (presence of diabetes mellitus [DM]), metabolic dysfunction (MD) MAFLD (≥2 metabolic abnormalities without DM), overweight MAFLD (overweight/obese without DM and <2 metabolic abnormalities) and no MAFLD. RESULTS Among all of the 6414 subjects (mean 53.9 years of age; 85.4% male), the prevalence of MAFLD was 49.9% and 22.7% for CAP cut-off values of 248 and 294 dB/m, respectively. In the multivariate analysis, MAFLD was associated with an increased risk of both low muscle mass_wt (odds ratio [OR] 1.80, 95% confidence interval [CI] 1.38-2.35, P < 0.001) and low muscle mass_BMI (OR 1.31, 95% CI 1.01-1.70, P = 0.042). The risk of low muscle mass_wt and low muscle mass_BMI increased the most in the diabetic MAFLD subgroup compared with the no-MAFLD group (OR 2.11, 95% CI 1.51-2.96, P < 0.001 and OR 1.51, 95% CI 1.08-2.13, P = 0.017). There was an increased risk of low muscle mass_wt in the MD MAFLD subgroup (OR 1.73, 95% CI 1.31-2.28, P < 0.001). Comparable results were observed when the CAP cut-off value of 294 dB/m was applied. CONCLUSIONS The presence of MAFLD is significantly associated with increased risk of low muscle mass with varying risks according to the MAFLD subgroups. Clinicians should be aware of the differentiated risk of low muscle mass across the subgroups of MAFLD.
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Affiliation(s)
- Ji Yeon Seo
- Department of Gastroenterology and Hepatology, Internal Medicine and Healthcare Research Institute, Seoul National University Hospital Healthcare System Gangnam Center, Seoul, South Korea
| | - Eun Ju Cho
- Department of Gastroenterology and Hepatology, Internal Medicine and Liver Research Institute, Seoul National University Hospital, Seoul, South Korea
| | - Min Joo Kim
- Department of Endocrinology, Internal Medicine and Healthcare Research Institute, Seoul National University Hospital Healthcare System Gangnam Center, Seoul, South Korea
| | - Min-Sun Kwak
- Department of Gastroenterology and Hepatology, Internal Medicine and Healthcare Research Institute, Seoul National University Hospital Healthcare System Gangnam Center, Seoul, South Korea
| | - Jong In Yang
- Department of Gastroenterology and Hepatology, Internal Medicine and Healthcare Research Institute, Seoul National University Hospital Healthcare System Gangnam Center, Seoul, South Korea
| | - Su Jin Chung
- Department of Gastroenterology and Hepatology, Internal Medicine and Healthcare Research Institute, Seoul National University Hospital Healthcare System Gangnam Center, Seoul, South Korea
| | - Jeong Yoon Yim
- Department of Gastroenterology and Hepatology, Internal Medicine and Healthcare Research Institute, Seoul National University Hospital Healthcare System Gangnam Center, Seoul, South Korea
| | - Ji Won Yoon
- Department of Endocrinology, Internal Medicine and Healthcare Research Institute, Seoul National University Hospital Healthcare System Gangnam Center, Seoul, South Korea
| | - Goh Eun Chung
- Department of Gastroenterology and Hepatology, Internal Medicine and Healthcare Research Institute, Seoul National University Hospital Healthcare System Gangnam Center, Seoul, South Korea
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Chung GE, Jeong SM, Cho EJ, Yoo JJ, Cho Y, Lee KN, Shin DW, Kim YJ, Yoon JH, Han K, Yu SJ. Association of fatty liver index with all-cause and disease-specific mortality: A nationwide cohort study. Metabolism 2022; 133:155222. [PMID: 35636583 DOI: 10.1016/j.metabol.2022.155222] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/26/2022] [Revised: 05/23/2022] [Accepted: 05/25/2022] [Indexed: 12/17/2022]
Abstract
BACKGROUND Population-based data regarding the prognostic implications of hepatic steatosis have been inconsistent. We examined the association between the fatty liver index (FLI) with all-cause and disease-specific mortality in the general population. METHODS We included subjects who underwent a health examination in 2009 using the Korean nationwide health screening database. Death and cause of death data were provided by Statistics Korea. The causes of death were classified using 10th Revision of the International Classification of Diseases codes. RESULTS Among the included 10,585,844 participants, there were 418,296 deaths during a median follow-up period of 8.3 years. When adjusting for possible confounding factors, the risk of all-cause mortality linearly increased with a higher FLI score (hazard ratio [HR], 95% confidence interval [CI]: FLI 30-59, 1.19, 1.18-1.20; FLI ≥ 60, 1.67, 1.65-1.69, P for trend <0.001). The risk of disease-specific mortality including cardiovascular disease (CVD), cancer, respiratory disease and liver disease, linearly increased as the FLI score became higher (HR, 95% CI: FLI 30-59, 1.18, 1.16-1.20, FLI ≥ 60: 1.61, 1.56-1.65 for CVD; FLI 30-59, 1.13, 1.11-1.14, FLI ≥ 60, 1.41, 1.38-1.44 for cancer; FLI 30-59, 1.26, 1.22-1.29, FLI ≥ 60, 1.96, 1.88-2.05 for respiratory disease, FLI 30-59, 2.29, 2.21-2.38, FLI ≥ 60, 5.57, 5.31-5.85 for liver disease). The risk of all-cause mortality increased as the FLI score became higher across all the body mass index groups, and the greatest risk was observed in those who were underweight (HR, 95% CI = 2.43, 2.09-2.82 in FLI ≥ 60). CONCLUSION FLI may serve as a prognostic indicator of death and a high FLI is associated with a poor prognosis particularly in the underweight group.
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Affiliation(s)
- Goh Eun Chung
- Department of Internal Medicine and Healthcare Research Institute, Seoul National University Hospital Healthcare System Gangnam Center, Seoul, South Korea
| | - Su-Min Jeong
- Department of Family Medicine/Supportive Care Center, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, South Korea
| | - Eun Ju Cho
- Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, South Korea
| | - Jeong-Ju Yoo
- Department of Internal Medicine, Division of Gastroenterology and Hepatology, Soonchunhyang University Bucheon Hospital, Gyeonggi-do, South Korea
| | - Yuri Cho
- Center for Liver and Pancreatobiliary Cancer, National Cancer Center, Goyang, South Korea
| | - Kyu Na Lee
- Department of Biostatistics, College of Medicine, Soongsil University, Seoul, South Korea
| | - Dong Wook Shin
- Department of Family Medicine/Supportive Care Center, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, South Korea; Department of Clinical Research Design and Evaluation, Department of Digital Health, Samsung Advanced Institute for Health Science, South Korea
| | - Yoon Jun Kim
- Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, South Korea
| | - Jung-Hwan Yoon
- Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, South Korea
| | - Kyungdo Han
- Department of Biostatistics, College of Medicine, Soongsil University, Seoul, South Korea.
| | - Su Jong Yu
- Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, South Korea.
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Chung GE, Kim JY, Shin H, Hong JH, Hur MH, Cho H, Park MK, Choi NR, Kim J, Lee YB, Cho EJ, Yu SJ, Kim YJ, Yoon JH, Lee JH. Correlation between Results of Semi-Quantitative and Quantitative Tests for Hepatitis B Virus Surface Antigen among Patients Achieving Viral Suppression with Antiviral Treatment. Diagnostics (Basel) 2022; 12:diagnostics12071757. [PMID: 35885659 PMCID: PMC9317496 DOI: 10.3390/diagnostics12071757] [Citation(s) in RCA: 2] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2022] [Revised: 07/13/2022] [Accepted: 07/19/2022] [Indexed: 11/16/2022] Open
Abstract
Background: Hepatitis B virus (HBV) infection remains a threat to global public health. Serum hepatitis B surface antigen (HBsAg) has been used in screening for HBV infection. Quantitative HBsAg assays are useful for monitoring the natural history of HBV infection and its response to therapy. The aim of this study was to determine the relationship between quantitative (qHBsAg; IU/mL) and semi-quantitative (sqHBsAg; signal-to-cutoff ratio [S/Co]) HBsAg titers in patients with chronic hepatitis B (CHB). Methods: We retrospectively included 284 samples with HBV DNA < 20 IU/mL from patients who had simultaneous qHBsAg (using electrochemiluminescence assay) and sqHBsAg tests. Patients were grouped according to their serum HBV-envelope antigen (HBeAg) status (HBeAg-negative, n = 239 and HBeAg-positive, n = 45). The Spearman test was used to analyze the correlation between the quantitative and semi-quantitative assays. Results: There was a significant linear correlation between sqHBsAg and qHBsAg in the HBeAg-negative patients (qHBsAg [IU/mL] = 0.0094 × sqHBsAg [S/Co]1.323; adjusted R2 = 0.8445; p < 0.001). There was a substantial hook effect in the assays from the HBeAg-positive patients, so we performed a stratified analysis according to qHBsAg <1000 IU/mL or ≥1000 IU/mL and found a significant positive linear correlation between sqHBsAg S/Co and qHBsAg (qHBsAg [IU/mL] = 0.072 × sqHBsAg [S/Co]1.331; adjusted R2 = 0.7878; p < 0.001) in HBeAg-positive patients with qHBsAg titers of <1000 IU/mL and a significant negative correlation in HBeAg-positive patients with qHBsAg titers of ≥1000 IU/mL (qHBsAg [IU/mL] = 8.987 × 1014 × sqHBsAg [S/Co]−3.175; adjusted R2 = 0.6350; p < 0.001). Conclusions: There was a highly linear, positive correlation between qHBsAg and sqHBsAg in HBeAg-negative CHB patients. The hook effect led to a negative correlation in HBeAg-positive CHB patients with qHBsAg titers ≥1000 IU/mL.
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Affiliation(s)
- Goh Eun Chung
- Department of Internal Medicine, Healthcare Research Institute, Gangnam Healthcare Center, Seoul National University Hospital, Seoul 03080, Korea;
| | - Ju Yeon Kim
- Department of Internal Medicine, Liver Research Institute, Seoul National University College of Medicine, Seoul 03080, Korea; (J.Y.K.); (H.S.); (J.H.H.); (M.H.H.); (H.C.); (M.K.P.); (N.R.C.); (J.K.); (Y.B.L.); (E.J.C.); (S.J.Y.); (Y.J.K.); (J.-H.Y.)
| | - Hyunjae Shin
- Department of Internal Medicine, Liver Research Institute, Seoul National University College of Medicine, Seoul 03080, Korea; (J.Y.K.); (H.S.); (J.H.H.); (M.H.H.); (H.C.); (M.K.P.); (N.R.C.); (J.K.); (Y.B.L.); (E.J.C.); (S.J.Y.); (Y.J.K.); (J.-H.Y.)
| | - Ji Hoon Hong
- Department of Internal Medicine, Liver Research Institute, Seoul National University College of Medicine, Seoul 03080, Korea; (J.Y.K.); (H.S.); (J.H.H.); (M.H.H.); (H.C.); (M.K.P.); (N.R.C.); (J.K.); (Y.B.L.); (E.J.C.); (S.J.Y.); (Y.J.K.); (J.-H.Y.)
| | - Moon Haeng Hur
- Department of Internal Medicine, Liver Research Institute, Seoul National University College of Medicine, Seoul 03080, Korea; (J.Y.K.); (H.S.); (J.H.H.); (M.H.H.); (H.C.); (M.K.P.); (N.R.C.); (J.K.); (Y.B.L.); (E.J.C.); (S.J.Y.); (Y.J.K.); (J.-H.Y.)
| | - Heejin Cho
- Department of Internal Medicine, Liver Research Institute, Seoul National University College of Medicine, Seoul 03080, Korea; (J.Y.K.); (H.S.); (J.H.H.); (M.H.H.); (H.C.); (M.K.P.); (N.R.C.); (J.K.); (Y.B.L.); (E.J.C.); (S.J.Y.); (Y.J.K.); (J.-H.Y.)
| | - Min Kyung Park
- Department of Internal Medicine, Liver Research Institute, Seoul National University College of Medicine, Seoul 03080, Korea; (J.Y.K.); (H.S.); (J.H.H.); (M.H.H.); (H.C.); (M.K.P.); (N.R.C.); (J.K.); (Y.B.L.); (E.J.C.); (S.J.Y.); (Y.J.K.); (J.-H.Y.)
| | - Na Ryung Choi
- Department of Internal Medicine, Liver Research Institute, Seoul National University College of Medicine, Seoul 03080, Korea; (J.Y.K.); (H.S.); (J.H.H.); (M.H.H.); (H.C.); (M.K.P.); (N.R.C.); (J.K.); (Y.B.L.); (E.J.C.); (S.J.Y.); (Y.J.K.); (J.-H.Y.)
| | - Jihye Kim
- Department of Internal Medicine, Liver Research Institute, Seoul National University College of Medicine, Seoul 03080, Korea; (J.Y.K.); (H.S.); (J.H.H.); (M.H.H.); (H.C.); (M.K.P.); (N.R.C.); (J.K.); (Y.B.L.); (E.J.C.); (S.J.Y.); (Y.J.K.); (J.-H.Y.)
| | - Yun Bin Lee
- Department of Internal Medicine, Liver Research Institute, Seoul National University College of Medicine, Seoul 03080, Korea; (J.Y.K.); (H.S.); (J.H.H.); (M.H.H.); (H.C.); (M.K.P.); (N.R.C.); (J.K.); (Y.B.L.); (E.J.C.); (S.J.Y.); (Y.J.K.); (J.-H.Y.)
| | - Eun Ju Cho
- Department of Internal Medicine, Liver Research Institute, Seoul National University College of Medicine, Seoul 03080, Korea; (J.Y.K.); (H.S.); (J.H.H.); (M.H.H.); (H.C.); (M.K.P.); (N.R.C.); (J.K.); (Y.B.L.); (E.J.C.); (S.J.Y.); (Y.J.K.); (J.-H.Y.)
| | - Su Jong Yu
- Department of Internal Medicine, Liver Research Institute, Seoul National University College of Medicine, Seoul 03080, Korea; (J.Y.K.); (H.S.); (J.H.H.); (M.H.H.); (H.C.); (M.K.P.); (N.R.C.); (J.K.); (Y.B.L.); (E.J.C.); (S.J.Y.); (Y.J.K.); (J.-H.Y.)
| | - Yoon Jun Kim
- Department of Internal Medicine, Liver Research Institute, Seoul National University College of Medicine, Seoul 03080, Korea; (J.Y.K.); (H.S.); (J.H.H.); (M.H.H.); (H.C.); (M.K.P.); (N.R.C.); (J.K.); (Y.B.L.); (E.J.C.); (S.J.Y.); (Y.J.K.); (J.-H.Y.)
| | - Jung-Hwan Yoon
- Department of Internal Medicine, Liver Research Institute, Seoul National University College of Medicine, Seoul 03080, Korea; (J.Y.K.); (H.S.); (J.H.H.); (M.H.H.); (H.C.); (M.K.P.); (N.R.C.); (J.K.); (Y.B.L.); (E.J.C.); (S.J.Y.); (Y.J.K.); (J.-H.Y.)
| | - Jeong-Hoon Lee
- Department of Internal Medicine, Liver Research Institute, Seoul National University College of Medicine, Seoul 03080, Korea; (J.Y.K.); (H.S.); (J.H.H.); (M.H.H.); (H.C.); (M.K.P.); (N.R.C.); (J.K.); (Y.B.L.); (E.J.C.); (S.J.Y.); (Y.J.K.); (J.-H.Y.)
- Correspondence: ; Tel.: +82-2-2072-2228
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19
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Park HE, Chung GE, Lee H, Kim MJ, Choi SY, Lee W, Yoon JW. Significance of Low Muscle Mass on Arterial Stiffness as Measured by Cardio-Ankle Vascular Index. Front Cardiovasc Med 2022; 9:857871. [PMID: 35774369 PMCID: PMC9239409 DOI: 10.3389/fcvm.2022.857871] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2022] [Accepted: 04/27/2022] [Indexed: 11/15/2022] Open
Abstract
Aim A link between low muscle mass and arterial stiffness is not always consistent. In this study, we aimed to evaluate the clinical significance of low skeletal muscle mass in relation to arterial stiffness measured by the cardio-ankle vascular index (CAVI). Methods A total of 2,561 asymptomatic Korean subjects who underwent bioelectrical impedance analysis (BIA) and CAVI were included for analysis. Using appendicular skeletal muscle mass (ASM), classes I and II sarcopenia were defined as ASM% greater than 1 standard deviation (SD) and 2 SDs below the gender-specific mean of healthy young Korean adults. Results Compared to normal, CAVI was significantly higher, but the number of patients with a low ankle-brachial index (ABI) was not significantly different (p < 0.001 for CAVI, p = 0.078 for ABI). Classes I and II sarcopenia showed an independent and significant association with CAVI (estimate 0.148, standard error (SE) 0.043, p < 0.001 and estimate 0.304, SE 0.073, p < 0.001 for classes I and II sarcopenia, respectively, adjusted for age groups, gender, body mass index (BMI) ≥25, hypertension, diabetes, hypercholesterolemia, and smoking). Conclusion Low muscle mass is independently and significantly associated with increased CAVI, and should be considered when managing asymptomatic subjects to assess the risk of atherosclerosis.
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Affiliation(s)
- Hyo Eun Park
- Division of Cardiology, Department of Internal Medicine, Healthcare System Gangnam Center, Healthcare Research Institute, Seoul National University Hospital, Seoul, South Korea
| | - Goh Eun Chung
- Division of Gastroenterology, Department of Internal Medicine, Healthcare System Gangnam Center, Healthcare Research Institute, Seoul National University Hospital, Seoul, South Korea
| | - Heesun Lee
- Division of Cardiology, Department of Internal Medicine, Healthcare System Gangnam Center, Healthcare Research Institute, Seoul National University Hospital, Seoul, South Korea
| | - Min Joo Kim
- Division of Endocrinology, Department of Internal Medicine, Healthcare System Gangnam Center, Healthcare Research Institute, Seoul National University Hospital, Seoul, South Korea
| | - Su-Yeon Choi
- Division of Cardiology, Department of Internal Medicine, Healthcare System Gangnam Center, Healthcare Research Institute, Seoul National University Hospital, Seoul, South Korea
| | - Wonjae Lee
- Division of Cardiology, Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, South Korea
| | - Ji Won Yoon
- Division of Endocrinology, Department of Internal Medicine, Healthcare System Gangnam Center, Healthcare Research Institute, Seoul National University Hospital, Seoul, South Korea
- *Correspondence: Ji Won Yoon ; orcid.org/0000-0001-9003-0614
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20
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Song G, Chung SJ, Seo JY, Yang SY, Jin EH, Chung GE, Shim SR, Sa S, Hong MS, Kim KH, Jang E, Lee CW, Bae JH, Han HW. Natural Language Processing for Information Extraction of Gastric Diseases and Its Application in Large-Scale Clinical Research. J Clin Med 2022; 11:jcm11112967. [PMID: 35683353 PMCID: PMC9181010 DOI: 10.3390/jcm11112967] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2022] [Revised: 05/16/2022] [Accepted: 05/23/2022] [Indexed: 11/21/2022] Open
Abstract
Background and Aims: The utility of clinical information from esophagogastroduodenoscopy (EGD) reports has been limited because of its unstructured narrative format. We developed a natural language processing (NLP) pipeline that automatically extracts information about gastric diseases from unstructured EGD reports and demonstrated its applicability in clinical research. Methods: An NLP pipeline was developed using 2000 EGD and associated pathology reports that were retrieved from a single healthcare center. The pipeline extracted clinical information, including the presence, location, and size, for 10 gastric diseases from the EGD reports. It was validated with 1000 EGD reports by evaluating sensitivity, positive predictive value (PPV), accuracy, and F1 score. The pipeline was applied to 248,966 EGD reports from 2010–2019 to identify patient demographics and clinical information for 10 gastric diseases. Results: For gastritis information extraction, we achieved an overall sensitivity, PPV, accuracy, and F1 score of 0.966, 0.972, 0.996, and 0.967, respectively. Other gastric diseases, such as ulcers, and neoplastic diseases achieved an overall sensitivity, PPV, accuracy, and F1 score of 0.975, 0.982, 0.999, and 0.978, respectively. The study of EGD data of over 10 years revealed the demographics of patients with gastric diseases by sex and age. In addition, the study identified the extent and locations of gastritis and other gastric diseases, respectively. Conclusions: We demonstrated the feasibility of the NLP pipeline providing an automated extraction of gastric disease information from EGD reports. Incorporating the pipeline can facilitate large-scale clinical research to better understand gastric diseases.
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Affiliation(s)
- Gyuseon Song
- Department of Biomedical Informatics, CHA University School of Medicine, CHA University, Seongnam 13488, Korea; (G.S.); (S.R.S.); (S.S.); (M.S.H.); (K.H.K.); (E.J.); (C.W.L.)
- Institute for Biomedical Informatics, CHA University School of Medicine, CHA University, Seongnam 13488, Korea
| | - Su Jin Chung
- Department of Internal Medicine and Healthcare Research Institute, Healthcare System Gangnam Center, Seoul National University Hospital, 39FL Gangnam Finance Center 152, Teheran-ro, Gangnam-gu, Seoul 06236, Korea; (S.J.C.); (J.Y.S.); (S.Y.Y.); (E.H.J.); (G.E.C.)
| | - Ji Yeon Seo
- Department of Internal Medicine and Healthcare Research Institute, Healthcare System Gangnam Center, Seoul National University Hospital, 39FL Gangnam Finance Center 152, Teheran-ro, Gangnam-gu, Seoul 06236, Korea; (S.J.C.); (J.Y.S.); (S.Y.Y.); (E.H.J.); (G.E.C.)
| | - Sun Young Yang
- Department of Internal Medicine and Healthcare Research Institute, Healthcare System Gangnam Center, Seoul National University Hospital, 39FL Gangnam Finance Center 152, Teheran-ro, Gangnam-gu, Seoul 06236, Korea; (S.J.C.); (J.Y.S.); (S.Y.Y.); (E.H.J.); (G.E.C.)
| | - Eun Hyo Jin
- Department of Internal Medicine and Healthcare Research Institute, Healthcare System Gangnam Center, Seoul National University Hospital, 39FL Gangnam Finance Center 152, Teheran-ro, Gangnam-gu, Seoul 06236, Korea; (S.J.C.); (J.Y.S.); (S.Y.Y.); (E.H.J.); (G.E.C.)
| | - Goh Eun Chung
- Department of Internal Medicine and Healthcare Research Institute, Healthcare System Gangnam Center, Seoul National University Hospital, 39FL Gangnam Finance Center 152, Teheran-ro, Gangnam-gu, Seoul 06236, Korea; (S.J.C.); (J.Y.S.); (S.Y.Y.); (E.H.J.); (G.E.C.)
| | - Sung Ryul Shim
- Department of Biomedical Informatics, CHA University School of Medicine, CHA University, Seongnam 13488, Korea; (G.S.); (S.R.S.); (S.S.); (M.S.H.); (K.H.K.); (E.J.); (C.W.L.)
- Institute for Biomedical Informatics, CHA University School of Medicine, CHA University, Seongnam 13488, Korea
- Department of Health and Medical Informatics, Kyungnam University College of Health Sciences, Changwon 51767, Korea
| | - Soonok Sa
- Department of Biomedical Informatics, CHA University School of Medicine, CHA University, Seongnam 13488, Korea; (G.S.); (S.R.S.); (S.S.); (M.S.H.); (K.H.K.); (E.J.); (C.W.L.)
- Institute for Biomedical Informatics, CHA University School of Medicine, CHA University, Seongnam 13488, Korea
| | - Moongi Simon Hong
- Department of Biomedical Informatics, CHA University School of Medicine, CHA University, Seongnam 13488, Korea; (G.S.); (S.R.S.); (S.S.); (M.S.H.); (K.H.K.); (E.J.); (C.W.L.)
- Institute for Biomedical Informatics, CHA University School of Medicine, CHA University, Seongnam 13488, Korea
| | - Kang Hyun Kim
- Department of Biomedical Informatics, CHA University School of Medicine, CHA University, Seongnam 13488, Korea; (G.S.); (S.R.S.); (S.S.); (M.S.H.); (K.H.K.); (E.J.); (C.W.L.)
- Institute for Biomedical Informatics, CHA University School of Medicine, CHA University, Seongnam 13488, Korea
| | - Eunchan Jang
- Department of Biomedical Informatics, CHA University School of Medicine, CHA University, Seongnam 13488, Korea; (G.S.); (S.R.S.); (S.S.); (M.S.H.); (K.H.K.); (E.J.); (C.W.L.)
- Institute for Biomedical Informatics, CHA University School of Medicine, CHA University, Seongnam 13488, Korea
| | - Chae Won Lee
- Department of Biomedical Informatics, CHA University School of Medicine, CHA University, Seongnam 13488, Korea; (G.S.); (S.R.S.); (S.S.); (M.S.H.); (K.H.K.); (E.J.); (C.W.L.)
- Institute for Biomedical Informatics, CHA University School of Medicine, CHA University, Seongnam 13488, Korea
| | - Jung Ho Bae
- Department of Biomedical Informatics, CHA University School of Medicine, CHA University, Seongnam 13488, Korea; (G.S.); (S.R.S.); (S.S.); (M.S.H.); (K.H.K.); (E.J.); (C.W.L.)
- Institute for Biomedical Informatics, CHA University School of Medicine, CHA University, Seongnam 13488, Korea
- Department of Internal Medicine and Healthcare Research Institute, Healthcare System Gangnam Center, Seoul National University Hospital, 39FL Gangnam Finance Center 152, Teheran-ro, Gangnam-gu, Seoul 06236, Korea; (S.J.C.); (J.Y.S.); (S.Y.Y.); (E.H.J.); (G.E.C.)
- Correspondence: (J.H.B.); (H.W.H.); Tel.: +82-2-2112-5574 (J.H.B.); +82-31-881-7109 (H.W.H.); Fax: +82-2-2112-5635 (J.H.B.); +82-31-881-7069 (H.W.H.)
| | - Hyun Wook Han
- Department of Biomedical Informatics, CHA University School of Medicine, CHA University, Seongnam 13488, Korea; (G.S.); (S.R.S.); (S.S.); (M.S.H.); (K.H.K.); (E.J.); (C.W.L.)
- Institute for Biomedical Informatics, CHA University School of Medicine, CHA University, Seongnam 13488, Korea
- Correspondence: (J.H.B.); (H.W.H.); Tel.: +82-2-2112-5574 (J.H.B.); +82-31-881-7109 (H.W.H.); Fax: +82-2-2112-5635 (J.H.B.); +82-31-881-7069 (H.W.H.)
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21
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Cho Y, Cho EJ, Yoo JJ, Chang Y, Chung GE, Choi IY, Park SH, Han K, Kim YJ, Yoon JH, Shin DW, Yu SJ. The Importance of Metabolic Syndrome Status for the Risk of Non-Viral Hepatocellular Carcinoma: A Nationwide Population-Based Study. Front Oncol 2022; 12:863352. [PMID: 35600376 PMCID: PMC9116136 DOI: 10.3389/fonc.2022.863352] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2022] [Accepted: 03/23/2022] [Indexed: 11/13/2022] Open
Abstract
The positive association between metabolic syndrome (MetS) and hepatocellular carcinoma (HCC) has been suggested. However, no studies have yet looked at how the risk of developing HCC varies with changes in MetS status. Therefore, we aimed to investigate the association between changes in MetS and subsequent HCC development. Data were obtained from the Korean National Health Insurance Service. In this study, 5,975,308 individuals who participated in health screenings both in 2009-2010 and 2011-2012 were included. Individuals with preexisting viral hepatitis, liver cirrhosis, or cancer diagnoses were excluded. Subjects were divided into four groups according to change in MetS status during the 2-year interval screening (from 2009 to 2011): sustained non-MetS, transition to MetS, transition to non-MetS, and sustained MetS. Cox regression analysis was used to examine the hazard ratios of HCC. The subjects were followed through December 31, 2018. During a median of 7.3 years of follow-up, 25,880 incident HCCs were identified. Compared to the sustained non-MetS group, age, sex, smoking, alcohol, regular exercise, and body mass index-adjusted hazard ratios (95% confidence interval) for HCC development were 1.01 (0.97-1.05) for the transition to MetS group, 1.05 (1.003-1.09) for the transition to non-MetS group, and 1.07 (1.03-1.10) for the sustained MetS group. Stratified analyses according to age, sex, smoking, alcohol intake, exercise, diabetes mellitus, hypertension, dyslipidemia, and chronic kidney disease showed similar results. A significantly increased HCC risk was observed in the sustained MetS and transition to non-MetS groups. The baseline status of MetS was associated with the risk of HCC development. Strategies to improve MetS, especially targeting insulin resistance, might prevent HCC development.
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Affiliation(s)
- Yuri Cho
- Department of Internal Medicine, Center for Liver and Pancreatobiliary Cancer, National Cancer Center, Goyang, South Korea
| | - Eun Ju Cho
- Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, South Korea
| | - Jeong-Ju Yoo
- Department of Gastroenterology and Hepatology, Soonchunhyang University Bucheon Hospital, Bucheon, South Korea
| | - Young Chang
- Department of Gastroenterology and Hepatology, Soonchunhyang University Seoul Hospital, Seoul, South Korea
| | - Goh Eun Chung
- Department of Internal Medicine, Healthcare Research Institute, Gangnam Healthcare Center, Seoul National University Hospital, Seoul, South Korea
| | - In Young Choi
- Total Healthcare Center, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul, South Korea
| | - Sang-Hyun Park
- Department of Biostatistics, College of Medicine, The Soongsil University, Seoul, South Korea
| | - Kyungdo Han
- Department of Biostatistics, College of Medicine, The Soongsil University, Seoul, South Korea
| | - Yoon Jun Kim
- Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, South Korea
| | - Jung-Hwan Yoon
- Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, South Korea
| | - Dong Wook Shin
- Supportive Care Center/Department of Family Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, South Korea.,Department of Clinical Research Design and Evaluation, Samsung Advanced Institute for Health Science and Technology (SAIHST), Sungkyunkwan University, Seoul, South Korea.,Department of Digital Health, Samsung Advanced Institute for Health Science and Technology (SAIHST), Sungkyunkwan University, Seoul, South Korea
| | - Su Jong Yu
- Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, South Korea
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22
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Lee DH, Chung SW, Lee JH, Kim HY, Chung GE, Kim MS, Yang BR, Nam JY, Lee YB, Kim YJ, Yoon JH. Association of Chronic Hepatitis B Infection and Antiviral Treatment With the Development of the Extrahepatic Malignancies: A Nationwide Cohort Study. J Clin Oncol 2022; 40:3394-3405. [PMID: 35561284 DOI: 10.1200/jco.21.01285] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
PURPOSE Epidemiologic studies suggest that chronic hepatitis B (CHB) is a risk factor for various primary extrahepatic malignancies. Our aim was to evaluate the associations of CHB and nucleos(t)ide analog (NA) treatment with the risk of the development of extrahepatic malignancies. PATIENTS AND METHODS We conducted an 18-month landmark analysis using nationwide claims data from the National Health Insurance Service of South Korea. Patients newly diagnosed with CHB in 2012-2014 (n = 90,944) and matched-controls (n = 685,436) were included. Patients with CHB were further classified as the NA-treated (CHB+/NA+, n = 6,539) or the NA-untreated (CHB+/NA-, n = 84,405) group. Inverse probability of treatment weighting analysis was applied to balance the treatment groups. Time-varying Cox analysis was performed to evaluate time-varying effect of NA treatment. The primary outcome was the development of any primary extrahepatic malignancy. Development of intrahepatic malignancy and death were considered as competing events. RESULTS During the study period (median = 47.4 months), 30,413 patients (3.9%) developed any extrahepatic malignancy. The CHB+/NA- group had a higher overall risk of extrahepatic malignancy than the CHB+/NA+ group (adjusted subdistribution hazard ratio [aSHR] = 1.28; 95% CI, 1.12 to 1.45; P < .001) or controls (aSHR = 1.22; 95% CI, 1.18 to 1.26; P < .001). There was no difference in the risk of extrahepatic malignancy between the CHB+/NA+ group and the controls (CHB+/NA+ v control: aSHR = 0.96; 95% CI, 0.84 to 1.08; P = .48). In time-varying Cox analysis, the CHB+/NA- patients were associated with a higher risk of extrahepatic malignancy than the CHB+/NA+ patients (aSHR = 1.37; 95% CI, 1.23 to 1.52; P < .001). CONCLUSION Patients with CHB have an elevated risk of developing primary extrahepatic malignancy. Long-term NA treatment was associated with a lower risk of extrahepatic malignancy development among patients with CHB.
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Affiliation(s)
- Dong Hyeon Lee
- Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, South Korea.,Department of Internal Medicine, Seoul Metropolitan Government Seoul National University Boramae Medical Center, Seoul, South Korea
| | - Sung Won Chung
- Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, South Korea
| | - Jeong-Hoon Lee
- Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, South Korea
| | - Hwi Young Kim
- Department of Internal Medicine, Ewha Womans University Medical Center, Ewha Womans University College of Medicine, Seoul, South Korea
| | - Goh Eun Chung
- Department of Internal Medicine, Healthcare System Gangnam Center Seoul National University Hospital, Seoul, South Korea
| | - Mi-Sook Kim
- Medical Research Collaborating Center, Seoul National University Hospital, Seoul, South Korea
| | - Bo Ram Yang
- Medical Research Collaborating Center, Seoul National University Hospital, Seoul, South Korea.,College of Pharmacy, Chungnam National University, Daejeon, South Korea
| | - Joon Yeul Nam
- Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, South Korea
| | - Yun Bin Lee
- Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, South Korea
| | - Yoon Jun Kim
- Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, South Korea
| | - Jung-Hwan Yoon
- Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, South Korea
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23
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Moon S, Chung GE, Joo SK, Park JH, Chang MS, Yoon JW, Koo BK, Kim W. A PNPLA3 Polymorphism Confers Lower Susceptibility to Incident Diabetes Mellitus in Subjects With Nonalcoholic Fatty Liver Disease. Clin Gastroenterol Hepatol 2022; 20:682-691.e8. [PMID: 33905771 DOI: 10.1016/j.cgh.2021.04.038] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [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: 01/29/2021] [Revised: 04/19/2021] [Accepted: 04/19/2021] [Indexed: 12/15/2022]
Abstract
BACKGROUND AND AIMS We investigated the association between the patatin-like phospholipase domain-containing-3 (PNPLA3) rs738409 genotype and the risk of diabetes mellitus (DM) using a biopsy-confirmed nonalcoholic fatty liver disease (NAFLD) cohort and a longitudinal observational cohort. METHODS Associations between genotypes and the prevalence of DM were evaluated with stratification according to the histological severity of NAFLD in the Boramae cohort (n = 706). A longitudinal cohort consisting of nondiabetic individuals with ≥2 health checkups was then selected to investigate the risk of incident DM according to the genotype (the GENIE cohort; n = 4998). RESULTS Among subjects with NAFLD in the Boramae cohort, the G allele was independently associated with a lower prevalence of DM in both NAFL (odds ratio [OR] per 1 allele, 0.66; 95% confidence interval [CI], 0.46-0.97) and nonalcoholic steatohepatitis (OR per 1 allele, 0.59; 95% CI, 0.38-0.92). This result was replicated in the longitudinal GENIE cohort. The G allele was associated with a lower risk of incident DM during the median follow-up of 60 months in subjects with NAFLD (hazard ratio, 0.65; 95% CI, 0.45-0.93). In contrast, G allele carriers without NAFLD showed higher odds for DM in the context of the Boramae cohort (OR, 2.44; 95% CI, 1.00-5.95). CONCLUSIONS These findings clarify conflicting results regarding the association between the PNPLA3 rs738409 genotype and the risk of DM, demonstrating a clear difference between subjects with and without NAFLD; this difference might be explained by the low metabolic risk in genetic NAFLD.
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Affiliation(s)
- Seoil Moon
- Department of Internal Medicine, Seoul National University Hospital, Seoul, Korea; On behalf of the Innovative Target Exploration of NAFLD (ITEN) consortium
| | - Goh Eun Chung
- Department of Internal Medicine, Healthcare System Gangnam Center, Seoul National University Hospital, Seoul, Korea; On behalf of the Innovative Target Exploration of NAFLD (ITEN) consortium
| | - Sae Kyung Joo
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Seoul National University College of Medicine, Seoul Metropolitan Government Boramae Medical Center, Seoul, Korea; On behalf of the Innovative Target Exploration of NAFLD (ITEN) consortium
| | - Jeong Hwan Park
- Department of Pathology, Seoul National University College of Medicine, Seoul Metropolitan Government Boramae Medical Center, Seoul, Korea; On behalf of the Innovative Target Exploration of NAFLD (ITEN) consortium
| | - Mee Soo Chang
- Department of Pathology, Seoul National University College of Medicine, Seoul Metropolitan Government Boramae Medical Center, Seoul, Korea; On behalf of the Innovative Target Exploration of NAFLD (ITEN) consortium
| | - Ji Won Yoon
- Department of Internal Medicine, Healthcare System Gangnam Center, Seoul National University Hospital, Seoul, Korea; On behalf of the Innovative Target Exploration of NAFLD (ITEN) consortium
| | - Bo Kyung Koo
- Division of Endocrinology, Department of Internal Medicine, Seoul National University College of Medicine, Seoul Metropolitan Government Boramae Medical Center, Seoul, Korea; On behalf of the Innovative Target Exploration of NAFLD (ITEN) consortium.
| | - Won Kim
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Seoul National University College of Medicine, Seoul Metropolitan Government Boramae Medical Center, Seoul, Korea; On behalf of the Innovative Target Exploration of NAFLD (ITEN) consortium.
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24
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Chung GE, Cho EJ, Yoo JJ, Chang Y, Cho Y, Park SH, Han K, Jeong SM, Yoon KW, Shin DW, Yu SJ, Kim YJ, Yoon JH. Young adults with nonalcoholic fatty liver disease, defined using the fatty liver index, can be at increased risk of myocardial infarction or stroke. Diabetes Obes Metab 2022; 24:465-472. [PMID: 34726318 DOI: 10.1111/dom.14597] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/08/2021] [Revised: 10/15/2021] [Accepted: 10/31/2021] [Indexed: 11/29/2022]
Abstract
AIM To investigate the relationship between nonalcoholic fatty liver disease (NAFLD) and cardiovascular events among a nationally representative sample of young adults in Korea. METHODS AND RESULTS This population-based cohort study from the Korean National Health Insurance Service included adults who were aged 20 to 39 years when they underwent a health examination between 2009 and 2012. NAFLD was defined as a fatty liver index (FLI) ≥60, and participants were divided into three groups according to FLI (<30, 30-59 and ≥60) to investigate the dose-dependent effect of FLI score. Among 5 324 410 participants, 9.8% had an FLI ≥60. There were 13 051 myocardial infarctions (MIs; 0.39%) and 8573 strokes (0.26%) during a median follow-up of 8.4 years. In multivariable analysis, NAFLD was associated with a higher risk of MI and stroke (hazard ratio [HR] 1.69, 95% confidence interval [CI] 1.61-1.77 and HR 1.73, 95% CI 1.63-1.84, respectively). MI and stroke had dose-dependent relationships with FLI (HR 1.28 in participants with FLI 30-59 and 1.73 in those with FLI ≥60 for MI and HR 1.18 in participants with FLI 30-59 and 1.41 in those with FLI ≥60 for stroke, respectively). CONCLUSIONS Nonalcholic fatty liver disease was an independent predictor of MI and stroke in young adults. These results suggest that primary prevention of cardiovascular disease should be emphasized in young adults with NAFLD.
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Affiliation(s)
- Goh Eun Chung
- Department of Internal Medicine and Healthcare Research Institute, Seoul National University Hospital Healthcare System Gangnam Centre, Seoul, Republic of Korea
| | - Eun Ju Cho
- Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Jeong-Ju Yoo
- Department of Gastroenterology and Hepatology, Soonchunhyang University Bucheon Hospital, Gyeonggi-do, Republic of Korea
| | - Young Chang
- Department of Gastroenterology and Hepatology, Soonchunhyang University Seoul Hospital, Seoul, Republic of Korea
| | - Yuri Cho
- Centre for Liver and Pancreatobiliary Cancer, National Cancer Centre, Goyang, Republic of Korea
| | - Sang-Hyun Park
- Department of Biostatistics, College of Medicine, Soongsil University, Seoul, Republic of Korea
| | - Kyungdo Han
- Department of Biostatistics, College of Medicine, Soongsil University, Seoul, Republic of Korea
| | - Su-Min Jeong
- Department of Family Medicine/Supportive Care Centre, Samsung Medical Centre, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - Kyoung Wan Yoon
- Department of Biotechnology, Hoseo University, Asan, Republic of Korea
| | - Dong Wook Shin
- Department of Family Medicine/Supportive Care Centre, Samsung Medical Centre, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
- Department of Clinical Research Design and Evaluation/Department of Digital Health, Samsung Advanced Institute for Health Science, Seoul, Republic of Korea
| | - Su Jong Yu
- Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Yoon Jun Kim
- Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Jung-Hwan Yoon
- Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, Republic of Korea
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25
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Choi JM, Park HE, Han YM, Lee J, Lee H, Chung SJ, Lim SH, Yim JY, Chung GE. Non-alcoholic/Metabolic-Associated Fatty Liver Disease and Helicobacter pylori Additively Increase the Risk of Arterial Stiffness. Front Med (Lausanne) 2022; 9:844954. [PMID: 35280895 PMCID: PMC8914072 DOI: 10.3389/fmed.2022.844954] [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] [Received: 01/07/2022] [Accepted: 02/01/2022] [Indexed: 11/13/2022] Open
Abstract
BackgroundNon-alcoholic fatty liver disease (NAFLD) and Helicobacter pylori (Hp) infection have a close association with an increased risk of cardiovascular disease. Metabolic dysfunction-associated fatty liver disease (MAFLD) is characterized by metabolic dysfunction in NAFLD. We investigated the synergistic effects of NAFLD/MAFLD and Hp infection on the risk of arterial stiffness in an asymptomatic population.MethodsWe included individuals who underwent abdominal ultrasonography, anti-Hp IgG antibody evaluations and cardio-ankle vascular index (CAVI) during health screening tests between January 2013 and December 2017. Arterial stiffness was defined using CAVI. A logistic regression model was used to analyze the independent and synergistic effects of NAFLD/MAFLD and Hp infection on the risk of arterial stiffness.ResultsAmong 3,195 subjects (mean age 54.7 years, 68.5% male), the prevalence of increased arterial stiffness was 36.4%. In the multivariate analysis, subjects with NAFLD but without Hp infection and those with both NAFLD and Hp infection had a significantly higher risk of increased arterial stiffness [odds ratio (OR) 1.61, 95% confidence interval (CI) 1.15–2.26, and OR 2.23, 95% CI 1.63–3.06, respectively], than subjects without Hp infection and NAFLD. Regarding MAFLD, Hp infection additively increased the risk of arterial stiffness in subjects with MAFLD (OR 2.13, 95% CI 1.64–2.78).ConclusionsAn interactive effect of Hp infection on the risk of arterial stiffness in individuals with NAFLD/MAFLD was observed. Hp infection additively increases the risk of arterial stiffness in subjects with NAFLD or MAFLD.
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Affiliation(s)
- Ji Min Choi
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Seoul National University Hospital Healthcare System Gangnam Center, Seoul, South Korea
| | - Hyo Eun Park
- Division of Cardiology, Department of Internal Medicine, Seoul National University Hospital Healthcare System Gangnam Center, Seoul, South Korea
| | - Yoo Min Han
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Seoul National University Hospital Healthcare System Gangnam Center, Seoul, South Korea
| | - Jooyoung Lee
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Seoul National University Hospital Healthcare System Gangnam Center, Seoul, South Korea
| | - Heesun Lee
- Division of Cardiology, Department of Internal Medicine, Seoul National University Hospital Healthcare System Gangnam Center, Seoul, South Korea
| | - Su Jin Chung
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Seoul National University Hospital Healthcare System Gangnam Center, Seoul, South Korea
| | - Seon Hee Lim
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Seoul National University Hospital Healthcare System Gangnam Center, Seoul, South Korea
| | - Jeong Yoon Yim
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Seoul National University Hospital Healthcare System Gangnam Center, Seoul, South Korea
| | - Goh Eun Chung
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Seoul National University Hospital Healthcare System Gangnam Center, Seoul, South Korea
- *Correspondence: Goh Eun Chung
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26
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Yoon D, Kong HJ, Kim BS, Cho WS, Lee JC, Cho M, Lim MH, Yang SY, Lim SH, Lee J, Song JH, Chung GE, Choi JM, Kang HY, Bae JH, Kim S. Colonoscopic image synthesis with generative adversarial network for enhanced detection of sessile serrated lesions using convolutional neural network. Sci Rep 2022; 12:261. [PMID: 34997124 PMCID: PMC8741803 DOI: 10.1038/s41598-021-04247-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [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] [Received: 07/29/2021] [Accepted: 12/20/2021] [Indexed: 12/28/2022] Open
Abstract
Computer-aided detection (CADe) systems have been actively researched for polyp detection in colonoscopy. To be an effective system, it is important to detect additional polyps that may be easily missed by endoscopists. Sessile serrated lesions (SSLs) are a precursor to colorectal cancer with a relatively higher miss rate, owing to their flat and subtle morphology. Colonoscopy CADe systems could help endoscopists; however, the current systems exhibit a very low performance for detecting SSLs. We propose a polyp detection system that reflects the morphological characteristics of SSLs to detect unrecognized or easily missed polyps. To develop a well-trained system with imbalanced polyp data, a generative adversarial network (GAN) was used to synthesize high-resolution whole endoscopic images, including SSL. Quantitative and qualitative evaluations on GAN-synthesized images ensure that synthetic images are realistic and include SSL endoscopic features. Moreover, traditional augmentation methods were used to compare the efficacy of the GAN augmentation method. The CADe system augmented with GAN synthesized images showed a 17.5% improvement in sensitivity on SSLs. Consequently, we verified the potential of the GAN to synthesize high-resolution images with endoscopic features and the proposed system was found to be effective in detecting easily missed polyps during a colonoscopy.
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Affiliation(s)
- Dan Yoon
- Interdisciplinary Program in Bioengineering, Graduate School, Seoul National University, Seoul, 08826, South Korea
| | - Hyoun-Joong Kong
- Transdisciplinary Department of Medicine and Advanced Technology, Seoul National University Hospital, Seoul, 03080, South Korea.,Department of Biomedical Engineering, Seoul National University College of Medicine, Seoul, 03080, South Korea.,Medical Big Data Research Center, Seoul National University College of Medicine, Seoul, 03080, South Korea.,Artificial Intelligence Institute, Seoul National University, Seoul, 08826, South Korea
| | - Byeong Soo Kim
- Interdisciplinary Program in Bioengineering, Graduate School, Seoul National University, Seoul, 08826, South Korea
| | - Woo Sang Cho
- Interdisciplinary Program in Bioengineering, Graduate School, Seoul National University, Seoul, 08826, South Korea
| | - Jung Chan Lee
- Department of Biomedical Engineering, Seoul National University College of Medicine, Seoul, 03080, South Korea.,Institute of Medical and Biological Engineering, Medical Research Center, Seoul National University, Seoul, 03080, South Korea.,Institute of Bioengineering, Seoul National University, Seoul, 08826, South Korea
| | - Minwoo Cho
- Transdisciplinary Department of Medicine and Advanced Technology, Seoul National University Hospital, Seoul, 03080, South Korea.,Biomedical Research Institute, Seoul National University Hospital, Seoul, 03080, South Korea
| | - Min Hyuk Lim
- Department of Biomedical Engineering, Seoul National University College of Medicine, Seoul, 03080, South Korea
| | - Sun Young Yang
- Department of Internal Medicine and Healthcare Research Institute, Healthcare System Gangnam Center, Seoul National University Hospital, Seoul, 06236, South Korea
| | - Seon Hee Lim
- Department of Internal Medicine and Healthcare Research Institute, Healthcare System Gangnam Center, Seoul National University Hospital, Seoul, 06236, South Korea
| | - Jooyoung Lee
- Department of Internal Medicine and Healthcare Research Institute, Healthcare System Gangnam Center, Seoul National University Hospital, Seoul, 06236, South Korea
| | - Ji Hyun Song
- Department of Internal Medicine and Healthcare Research Institute, Healthcare System Gangnam Center, Seoul National University Hospital, Seoul, 06236, South Korea
| | - Goh Eun Chung
- Department of Internal Medicine and Healthcare Research Institute, Healthcare System Gangnam Center, Seoul National University Hospital, Seoul, 06236, South Korea
| | - Ji Min Choi
- Department of Internal Medicine and Healthcare Research Institute, Healthcare System Gangnam Center, Seoul National University Hospital, Seoul, 06236, South Korea
| | - Hae Yeon Kang
- Department of Internal Medicine and Healthcare Research Institute, Healthcare System Gangnam Center, Seoul National University Hospital, Seoul, 06236, South Korea
| | - Jung Ho Bae
- Department of Internal Medicine and Healthcare Research Institute, Healthcare System Gangnam Center, Seoul National University Hospital, Seoul, 06236, South Korea.
| | - Sungwan Kim
- Department of Biomedical Engineering, Seoul National University College of Medicine, Seoul, 03080, South Korea. .,Artificial Intelligence Institute, Seoul National University, Seoul, 08826, South Korea. .,Institute of Bioengineering, Seoul National University, Seoul, 08826, South Korea.
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27
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Lee J, Bae JH, Chung SJ, Kang HY, Kang SJ, Kwak MS, Seo JY, Song JH, Yang SY, Yang JI, Lim SH, Yim JY, Lim JH, Chung GE, Jin EH, Choi JM, Han YM, Kim JS. Impact of comprehensive optical diagnosis training using Workgroup serrAted polypS and Polyposis classification on detection of adenoma and sessile serrated lesion. Dig Endosc 2022; 34:180-190. [PMID: 34021513 DOI: 10.1111/den.14046] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [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: 12/04/2020] [Revised: 05/10/2021] [Accepted: 05/16/2021] [Indexed: 12/13/2022]
Abstract
OBJECTIVES Many interventions have been attempted to improve adenoma detection rate (ADR) and sessile serrated lesion detection rate (SDR), and one of these interventions is educational training to recognize polyp characteristics. This study aimed to investigate the change in polyp detection rates of endoscopists before and after comprehensive training through the Gangnam-Real Time Optical Diagnosis (Gangnam-READI) program. METHODS Fifteen gastroenterologists participated in a 1-year comprehensive training program that consisted of ex vivo and in vivo training that encompasses knowledge and skills in endoscopic characterization of colonic polyps using the Workgroup serrAted polypS and Polyposis (WASP) classification. We evaluated the impact of the training program by comparing the overall and individual ADR and SDR 6 months before and after the training. RESULTS Overall, 18,280 polyps (9337 adenomas and 855 sessile serrated lesion) were collected. The optical diagnosis training had no significant impact on the difference in ADR after training compared to before training (47.7% vs. 46.5%, P = 0.608). A tendency for a decrease in ADR variance was noted among the endoscopists after training (74.9 vs. 32.7, P = 0.121). The overall pre-training period SDR was 4.5% and showed a statistically significant increase to 5.6%, 8.0%, and 7.1% in the first and second half of the training period, and post-training period, respectively (P = 0.003). The optical diagnosis training did not decrease variance in SDR (8.9 vs. 8.8, P = 0.985). CONCLUSION Comprehensive optical diagnosis training with WASP classification has a significant impact on increasing the overall SDR of expert endoscopists.
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Affiliation(s)
- Jooyoung Lee
- Department of Internal Medicine and Healthcare Research Institute, Healthcare System Gangnam Center, Seoul National University Hospital, Seoul, Korea
| | - Jung Ho Bae
- Department of Internal Medicine and Healthcare Research Institute, Healthcare System Gangnam Center, Seoul National University Hospital, Seoul, Korea
| | - Su Jin Chung
- Department of Internal Medicine and Healthcare Research Institute, Healthcare System Gangnam Center, Seoul National University Hospital, Seoul, Korea
| | - Hae Yeon Kang
- Department of Internal Medicine and Healthcare Research Institute, Healthcare System Gangnam Center, Seoul National University Hospital, Seoul, Korea
| | - Seung Joo Kang
- Department of Internal Medicine and Healthcare Research Institute, Healthcare System Gangnam Center, Seoul National University Hospital, Seoul, Korea
| | - Min-Sun Kwak
- Department of Internal Medicine and Healthcare Research Institute, Healthcare System Gangnam Center, Seoul National University Hospital, Seoul, Korea
| | - Ji Yeon Seo
- Department of Internal Medicine and Healthcare Research Institute, Healthcare System Gangnam Center, Seoul National University Hospital, Seoul, Korea
| | - Ji Hyun Song
- Department of Internal Medicine and Healthcare Research Institute, Healthcare System Gangnam Center, Seoul National University Hospital, Seoul, Korea
| | - Sun Young Yang
- Department of Internal Medicine and Healthcare Research Institute, Healthcare System Gangnam Center, Seoul National University Hospital, Seoul, Korea
| | - Jong In Yang
- Department of Internal Medicine and Healthcare Research Institute, Healthcare System Gangnam Center, Seoul National University Hospital, Seoul, Korea
| | - Seon Hee Lim
- Department of Internal Medicine and Healthcare Research Institute, Healthcare System Gangnam Center, Seoul National University Hospital, Seoul, Korea
| | - Jeong Yoon Yim
- Department of Internal Medicine and Healthcare Research Institute, Healthcare System Gangnam Center, Seoul National University Hospital, Seoul, Korea
| | - Joo Hyun Lim
- Department of Internal Medicine and Healthcare Research Institute, Healthcare System Gangnam Center, Seoul National University Hospital, Seoul, Korea
| | - Goh Eun Chung
- Department of Internal Medicine and Healthcare Research Institute, Healthcare System Gangnam Center, Seoul National University Hospital, Seoul, Korea
| | - Eun Hyo Jin
- Department of Internal Medicine and Healthcare Research Institute, Healthcare System Gangnam Center, Seoul National University Hospital, Seoul, Korea
| | - Ji Min Choi
- Department of Internal Medicine and Healthcare Research Institute, Healthcare System Gangnam Center, Seoul National University Hospital, Seoul, Korea
| | - Yoo Min Han
- Department of Internal Medicine and Healthcare Research Institute, Healthcare System Gangnam Center, Seoul National University Hospital, Seoul, Korea
| | - Joo Sung Kim
- Department of Internal Medicine and Healthcare Research Institute, Healthcare System Gangnam Center, Seoul National University Hospital, Seoul, Korea
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Han YM, Lee J, Choi JM, Kwak MS, Yang JI, Chung SJ, Yim JY, Chung GE. The association between Helicobacter pylori with nonalcoholic fatty liver disease assessed by controlled attenuation parameter and other metabolic factors. PLoS One 2021; 16:e0260994. [PMID: 34898613 PMCID: PMC8668115 DOI: 10.1371/journal.pone.0260994] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2021] [Accepted: 11/20/2021] [Indexed: 02/07/2023] Open
Abstract
Aim Existing studies have suggested an association between Helicobacter pylori (Hp) infection and nonalcoholic fatty liver disease (NAFLD). We investigated the relationship between Hp infection and NAFLD using controlled attenuation parameter (CAP) and other metabolic factors. Method We conducted a retrospective cohort study of apparently healthy individuals who underwent liver Fibroscan during health screening tests between January 2018 and December 2018. Diagnosis of Hp infection was based on a serum anti-Hp IgG antibody test and CAP values were used to diagnose NAFLD. Results Among the 1,784 subjects (mean age 55.3 years, 83.1% male), 708 (39.7%) subjects showed positive results of Hp serology. In the multivariate analysis, obesity (body mass index ≥25) (odds ratio [OR] 3.44, 95% confidence interval [CI] 2.75–4.29), triglyceride (OR 2.31, 95% CI 1.80–2.97), and the highest tertile of liver stiffness measurement (OR 2.08, 95% CI 1.59–2.71) were found to be associated with NAFLD, defined by CAP ≥248 dB/m, while Hp-seropositivity showed no association with NAFLD. Serum levels of HDL cholesterol significantly decreased in subjects with Hp-seropositivity compared to HP-seronegativity in both groups with and without NAFLD (P<0.001). Conclusion While Hp seropositivity was not associated with CAP-defined NAFLD, serum HDL cholesterol level were negatively associated with Hp-seropositivity in both groups with and without NAFLD. Further clinical and experimental studies are necessary to determine the association between Hp infection and NAFLD.
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Affiliation(s)
- Yoo Min Han
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Seoul National University Hospital Healthcare System Gangnam Center, Seoul, Korea
| | - Jooyoung Lee
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Seoul National University Hospital Healthcare System Gangnam Center, Seoul, Korea
| | - Ji Min Choi
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Seoul National University Hospital Healthcare System Gangnam Center, Seoul, Korea
| | - Min-Sun Kwak
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Seoul National University Hospital Healthcare System Gangnam Center, Seoul, Korea
| | - Jong In Yang
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Seoul National University Hospital Healthcare System Gangnam Center, Seoul, Korea
| | - Su Jin Chung
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Seoul National University Hospital Healthcare System Gangnam Center, Seoul, Korea
| | - Jeong Yoon Yim
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Seoul National University Hospital Healthcare System Gangnam Center, Seoul, Korea
| | - Goh Eun Chung
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Seoul National University Hospital Healthcare System Gangnam Center, Seoul, Korea
- * E-mail:
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Bae JH, Han HW, Yang SY, Song G, Sa S, Chung GE, Seo JY, Jin EH, Kim H, An D. Development of a Natural Language Processing System for Assessing Quality Indicators from Free-Text Colonoscopy and Pathology Reports: Methodology Development and Applications (Preprint). JMIR Med Inform 2021; 10:e35257. [PMID: 35436226 PMCID: PMC9055472 DOI: 10.2196/35257] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2021] [Revised: 02/13/2022] [Accepted: 02/25/2022] [Indexed: 12/25/2022] Open
Abstract
Background Manual data extraction of colonoscopy quality indicators is time and labor intensive. Natural language processing (NLP), a computer-based linguistics technique, can automate the extraction of important clinical information, such as adverse events, from unstructured free-text reports. NLP information extraction can facilitate the optimization of clinical work by helping to improve quality control and patient management. Objective We developed an NLP pipeline to analyze free-text colonoscopy and pathology reports and evaluated its ability to automatically assess adenoma detection rate (ADR), sessile serrated lesion detection rate (SDR), and postcolonoscopy surveillance intervals. Methods The NLP tool for extracting colonoscopy quality indicators was developed using a data set of 2000 screening colonoscopy reports from a single health care system, with an associated 1425 pathology reports. The NLP system was then tested on a data set of 1000 colonoscopy reports and its performance was compared with that of 5 human annotators. Additionally, data from 54,562 colonoscopies performed between 2010 and 2019 were analyzed using the NLP pipeline. Results The NLP pipeline achieved an overall accuracy of 0.99-1.00 for identifying polyp subtypes, 0.99-1.00 for identifying the anatomical location of polyps, and 0.98 for counting the number of neoplastic polyps. The NLP pipeline achieved performance similar to clinical experts for assessing ADR, SDR, and surveillance intervals. NLP analysis of a 10-year colonoscopy data set identified great individual variance in colonoscopy quality indicators among 25 endoscopists. Conclusions The NLP pipeline could accurately extract information from colonoscopy and pathology reports and demonstrated clinical efficacy for assessing ADR, SDR, and surveillance intervals in these reports. Implementation of the system enabled automated analysis and feedback on quality indicators, which could motivate endoscopists to improve the quality of their performance and improve clinical decision-making in colorectal cancer screening programs.
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Affiliation(s)
- Jung Ho Bae
- Department of Biomedical Informatics, CHA University School of Medicine, CHA University, Seongnam, Republic of Korea
- Institute for Biomedical Informatics, CHA University School of Medicine, CHA University, Seongnam, Republic of Korea
- Department of Internal Medicine and Healthcare Research Institute, Healthcare System Gangnam Center, Seoul National University Hospital, Seoul, Republic of Korea
| | - Hyun Wook Han
- Department of Biomedical Informatics, CHA University School of Medicine, CHA University, Seongnam, Republic of Korea
- Institute for Biomedical Informatics, CHA University School of Medicine, CHA University, Seongnam, Republic of Korea
| | - Sun Young Yang
- Department of Internal Medicine and Healthcare Research Institute, Healthcare System Gangnam Center, Seoul National University Hospital, Seoul, Republic of Korea
| | - Gyuseon Song
- Department of Biomedical Informatics, CHA University School of Medicine, CHA University, Seongnam, Republic of Korea
- Institute for Biomedical Informatics, CHA University School of Medicine, CHA University, Seongnam, Republic of Korea
| | - Soonok Sa
- Department of Biomedical Informatics, CHA University School of Medicine, CHA University, Seongnam, Republic of Korea
- Institute for Biomedical Informatics, CHA University School of Medicine, CHA University, Seongnam, Republic of Korea
| | - Goh Eun Chung
- Department of Internal Medicine and Healthcare Research Institute, Healthcare System Gangnam Center, Seoul National University Hospital, Seoul, Republic of Korea
| | - Ji Yeon Seo
- Department of Internal Medicine and Healthcare Research Institute, Healthcare System Gangnam Center, Seoul National University Hospital, Seoul, Republic of Korea
| | - Eun Hyo Jin
- Department of Internal Medicine and Healthcare Research Institute, Healthcare System Gangnam Center, Seoul National University Hospital, Seoul, Republic of Korea
| | - Heecheon Kim
- Miso Info Tech Co, Ltd, Seoul, Republic of Korea
| | - DongUk An
- Miso Info Tech Co, Ltd, Seoul, Republic of Korea
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Chung GE, Cho EJ, Yoon JW, Yoo JJ, Chang Y, Cho Y, Park SH, Han K, Shin DW, Yu SJ. Nonalcoholic fatty liver disease increases the risk of diabetes in young adults: A nationwide population-based study in Korea. Metabolism 2021; 123:154866. [PMID: 34411553 DOI: 10.1016/j.metabol.2021.154866] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/11/2021] [Revised: 08/08/2021] [Accepted: 08/10/2021] [Indexed: 12/18/2022]
Abstract
BACKGROUND Nonalcoholic fatty liver disease (NAFLD) is associated with an increased risk of diabetes but has been rarely investigated in young adults. In this study, we investigated the relationship between NAFLD and incident diabetes risk in young adults using nationwide Korean population data. METHODS This population-based cohort study from the Korean National Health Insurance Service included adults aged 20 through 39 years who underwent a health examination from 2009 to 2012. NAFLD was defined as a fatty liver index (FLI) ≥60 in the absence of alcohol consumption of ≥30 g/day. Newly diagnosed diabetes during follow-up was identified using claims data. Cox regression was used to calculate the hazard ratio for incident diabetes after adjusting for classical confounders. FINDINGS Among the 5,254,786 participants, 9.3% had an FLI ≥60. During the median follow-up of 8.6 years, 91,885 cases of incident diabetes occurred. In multivariable analysis, the risk of incident diabetes was significantly higher in the NAFLD group than the control group (adjusted hazard ratio = 4.97, 95% confidence interval, 4.90-5.05). Stratified analyses showed higher associations in those who were ≥30 years, male, obese, smokers, alcohol consumers, and did not regularly exercise (all P < 0.001). CONCLUSIONS NAFLD is associated with a five-fold increased risk of incident diabetes in young adults. These results suggest an independent high risk for incident diabetes in young adults and underscore the importance of paying early attention to patients who develop NAFLD before middle age.
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Affiliation(s)
- Goh Eun Chung
- Department of Internal Medicine and Healthcare Research Institute, Seoul National University Hospital Healthcare System Gangnam Center, Seoul, Republic of Korea
| | - Eun Ju Cho
- Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Ji Won Yoon
- Department of Internal Medicine and Healthcare Research Institute, Seoul National University Hospital Healthcare System Gangnam Center, Seoul, Republic of Korea
| | - Jeong-Ju Yoo
- Department of Gastroenterology and Hepatology, Soonchunhyang University Bucheon Hospital, Gyeonggi-do, Republic of Korea
| | - Young Chang
- Department of Gastroenterology and Hepatology, Soonchunhyang University Seoul Hospital, Seoul, Republic of Korea
| | - Yuri Cho
- Center for Liver and Pancreatobiliary Cancer, National Cancer Center, Goyang, Republic of Korea
| | - Sang-Hyun Park
- Department of Biostatistics, College of Medicine, Soongsil University, Seoul, Republic of Korea
| | - Kyungdo Han
- Department of Biostatistics, College of Medicine, Soongsil University, Seoul, Republic of Korea
| | - Dong Wook Shin
- Department of Family Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea; Department of Clinical Research Design and Evaluation, Samsung Advanced Institute for Health Science, Republic of Korea; Supportive Care Center, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea; Department of Digital Health, Samsung Advanced Institute for Health Science, Republic of Korea.
| | - Su Jong Yu
- Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, Republic of Korea.
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Cho EJ, Yu SJ, Jung GC, Kwak MS, Yang JI, Yim JY, Chung GE. Body weight gain rather than body weight variability associated with increased risk of nonalcoholic fatty liver disease. Sci Rep 2021; 11:14428. [PMID: 34257374 PMCID: PMC8277820 DOI: 10.1038/s41598-021-93883-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2021] [Accepted: 07/01/2021] [Indexed: 12/20/2022] Open
Abstract
Weight loss, the most established therapy for nonalcoholic fatty liver disease (NAFLD), is frequently followed by weight regain and fluctuation. The aim of this study was to investigate whether body weight change and variability were independent risk factors for incident NAFLD. We conducted a longitudinal cohort study. Among the 1907 participants, incident NAFLD occurred in 420 (22.0%) cases during median follow-up of 5.6 years. In the multivariate analysis, there was no significant association between weight variability and the risk of incident NAFLD. The risk of incident NAFLD was significantly higher in subjects with weight gain ≥ 10% and 7% < gain ≤ 10% [hazard ratios (HR), 2.43; 95% confidence intervals (CI), 1.65-3.58 and HR, 1.73; 95% CI, 1.26-2.39, respectively], while the risk of incident NAFLD was significantly lower in those with -7% < weight loss ≤ --3% (HR, 0.33; 95% CI, 0.22-0.51). Overall body weight gain rather than bodyweight variability was independently associated with the risk of incident NAFLD. Understanding the association between body weight variability and incident NAFLD may have future clinical implications for the quantification of weight loss as a treatment for patients with NAFLD.
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Affiliation(s)
- Eun Ju Cho
- Department of Internal Medicine, Liver Research Institute, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Su Jong Yu
- Department of Internal Medicine, Liver Research Institute, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Gu Cheol Jung
- Healthcare Research Institute, Seoul National University Hospital Healthcare System Gangnam Center, Seoul, Republic of Korea
| | - Min-Sun Kwak
- Department of Internal Medicine, Healthcare Research Institute, Seoul National University Hospital Healthcare System Gangnam Center, 39FL., Gangnam Finance Center 737, Yeoksam-Dong, Gangnam-Gu, Seoul, 135-984, South Korea
| | - Jong In Yang
- Department of Internal Medicine, Healthcare Research Institute, Seoul National University Hospital Healthcare System Gangnam Center, 39FL., Gangnam Finance Center 737, Yeoksam-Dong, Gangnam-Gu, Seoul, 135-984, South Korea
| | - Jeong Yoon Yim
- Department of Internal Medicine, Healthcare Research Institute, Seoul National University Hospital Healthcare System Gangnam Center, 39FL., Gangnam Finance Center 737, Yeoksam-Dong, Gangnam-Gu, Seoul, 135-984, South Korea
| | - Goh Eun Chung
- Department of Internal Medicine, Healthcare Research Institute, Seoul National University Hospital Healthcare System Gangnam Center, 39FL., Gangnam Finance Center 737, Yeoksam-Dong, Gangnam-Gu, Seoul, 135-984, South Korea.
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Heo NJ, Park HE, Yoon JW, Kwak MS, Yang JI, Chung SJ, Yim JY, Chung GE. The Association between Vitamin D and Nonalcoholic Fatty Liver Disease Assessed by Controlled Attenuation Parameter. J Clin Med 2021; 10:jcm10122611. [PMID: 34199258 PMCID: PMC8231966 DOI: 10.3390/jcm10122611] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [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: 06/02/2021] [Revised: 06/10/2021] [Accepted: 06/11/2021] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND An association between nonalcoholic fatty liver disease (NAFLD) and low vitamin D levels has been suggested. We investigated the relationship between vitamin D and NAFLD assessed by controlled attenuation parameter (CAP). METHODS We conducted a retrospective cohort study of apparently healthy subjects who underwent Fibroscan during health screening tests. NAFLD was diagnosed using CAP values. RESULTS Among the 1202 subjects (mean age 57.2 years, 60.6% male), 630 (52.4%) subjects had NAFLD with CAP ≥ 248 dB/m. Multivariable analysis was conducted after adjusting for metabolic risk factors including diabetes, hypertension, hypercholesterolemia, body mass index, high-density lipoprotein cholesterol, triglyceride and smoking. Higher vitamin D levels showed a lower risk of NAFLD compared to the lowest quartile of vitamin D in a dose-dependent manner (OR 0.68, 95% CI 0.47-1.00 in Q2 vs. Q1; OR 0.65, 95% CI 0.44-0.94 in Q3 vs. Q1; and OR 0.64, 95% CI 0.44-0.94 in Q4 vs. Q1). The highest quartile of vitamin D showed a decreased risk of a severe grade of steatosis (CAP ≥ 302 dB/m) compared to the lowest quartile (OR 0.52, 95% CI 0.31-0.87 in Q4 vs. Q1). CONCLUSIONS Higher levels of serum vitamin D were associated with a decreased risk of CAP-defined NAFLD, compared to low levels of serum vitamin D. The association between NAFLD and vitamin D suggests that vitamin D may exert a protective role against NAFLD.
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Affiliation(s)
- Nam Ju Heo
- Department of Nephrology, Internal Medicine, Seoul National University Hospital Healthcare System Gangnam Center, Seoul 06236, Korea;
| | - Hyo Eun Park
- Department of Cardiology, Internal Medicine, Seoul National University Hospital Healthcare System Gangnam Center, Seoul 06236, Korea;
| | - Ji Won Yoon
- Department of Endocrinology, Internal Medicine, Seoul National University Hospital Healthcare System Gangnam Center, Seoul 06236, Korea;
| | - Min-Sun Kwak
- Department of Gastroenterology and Hepatology, Internal Medicine, Seoul National University Hospital Healthcare System Gangnam Center, Seoul 03080, Korea; (M.-S.K.); (J.I.Y.); (S.J.C.); (J.Y.Y.)
| | - Jong In Yang
- Department of Gastroenterology and Hepatology, Internal Medicine, Seoul National University Hospital Healthcare System Gangnam Center, Seoul 03080, Korea; (M.-S.K.); (J.I.Y.); (S.J.C.); (J.Y.Y.)
| | - Su Jin Chung
- Department of Gastroenterology and Hepatology, Internal Medicine, Seoul National University Hospital Healthcare System Gangnam Center, Seoul 03080, Korea; (M.-S.K.); (J.I.Y.); (S.J.C.); (J.Y.Y.)
| | - Jeong Yoon Yim
- Department of Gastroenterology and Hepatology, Internal Medicine, Seoul National University Hospital Healthcare System Gangnam Center, Seoul 03080, Korea; (M.-S.K.); (J.I.Y.); (S.J.C.); (J.Y.Y.)
| | - Goh Eun Chung
- Department of Gastroenterology and Hepatology, Internal Medicine, Seoul National University Hospital Healthcare System Gangnam Center, Seoul 03080, Korea; (M.-S.K.); (J.I.Y.); (S.J.C.); (J.Y.Y.)
- Correspondence: ; Tel.: +82-(0)2-2112-5741; Fax: +82-(0)2-2112-5635
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Chung GE, Park HE, Lee H, Kim MJ, Choi SY, Yim JY, Yoon JW. Sarcopenic Obesity Is Significantly Associated With Coronary Artery Calcification. Front Med (Lausanne) 2021; 8:651961. [PMID: 33855037 PMCID: PMC8039284 DOI: 10.3389/fmed.2021.651961] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [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] [Received: 01/11/2021] [Accepted: 03/05/2021] [Indexed: 12/11/2022] Open
Abstract
Background: An association between sarcopenic obesity and cardiovascular disease has been suggested. We investigated the relationship between sarcopenia and coronary atherosclerosis, taking into account the presence or absence of obesity in a health check-up population. Methods: Data were reviewed for subjects who underwent bioelectrical impedance analysis (BIA) and coronary calcium scoring (CAC) computed tomography between January 2017 and December 2018. Appendicular skeletal muscle mass (ASM) was assessed using BIA. Sarcopenia was defined as reduction of muscle mass and calculated as ASM% (ASM/body weight) more than two standard deviations below the sex-specific mean for healthy young adults. CAC scores were dichotomized as low (<100) or high (≥100). Results: Among 1,282 subjects (mean age, 58.1 years; 75.5% male), the prevalence of high CAC was 21%. When the study population was divided into four groups according to their obesity and sarcopenia status, the prevalence of high CAC in the sarcopenic-obesity (SO) group was significantly higher than in the other groups (40.7%, P < 0.001). After adjusting for age, sex, hypertension, diabetes, dyslipidemia, and creatinine, subjects with SO exhibited a significantly higher odds of a high CAC score, compared with the non-sarcopenic, non-obese group (odds ratio, 1.92; 95% confidence interval, 1.16–3.18, P = 0.011). Conclusion: SO was significantly associated with CAC, independent of known risk factors for coronary artery disease. These findings suggest that sarcopenia and obesity may potentiate each other to increase atherosclerotic burden in coronary arteries, which may eventually lead to adverse cardiovascular events.
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Affiliation(s)
- Goh Eun Chung
- Internal Medicine, Seoul National University Hospital Healthcare System Gangnam Center, Seoul, South Korea
| | - Hyo Eun Park
- Internal Medicine, Seoul National University Hospital Healthcare System Gangnam Center, Seoul, South Korea
| | - Heesun Lee
- Internal Medicine, Seoul National University Hospital Healthcare System Gangnam Center, Seoul, South Korea
| | - Min Joo Kim
- Internal Medicine, Seoul National University Hospital Healthcare System Gangnam Center, Seoul, South Korea
| | - Su-Yeon Choi
- Internal Medicine, Seoul National University Hospital Healthcare System Gangnam Center, Seoul, South Korea
| | - Jeong Yoon Yim
- Internal Medicine, Seoul National University Hospital Healthcare System Gangnam Center, Seoul, South Korea
| | - Ji Won Yoon
- Internal Medicine, Seoul National University Hospital Healthcare System Gangnam Center, Seoul, South Korea
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Chung GE, Park HE, Lee H, Choi SY. Clinical significance of increased arterial stiffness associated with atrial fibrillation, according to Framingham risk score. Sci Rep 2021; 11:4955. [PMID: 33654162 PMCID: PMC7925576 DOI: 10.1038/s41598-021-84311-9] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [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] [Received: 07/14/2020] [Accepted: 01/28/2021] [Indexed: 01/17/2023] Open
Abstract
Atrial fibrillation (AF) is the most common arrhythmia in the elderly. Arterial stiffness may predict the risk of AF, but this relationship has not been fully evaluated. We assessed the association between arterial stiffness and prevalent AF. All subjects who had electrocardiography performed and a cardio-ankle vascular index (CAVI) calculated during a screening examination between 2010 and 2019 were enrolled. To evaluate the association between increased arterial stiffness and AF, we divided the population according to their Framingham risk score (FRS) into low-, intermediate-, and high-risk groups. A total of 8048 subjects were evaluated. The multivariate analysis revealed that increased arterial stiffness was significantly associated with AF prevalence, even after adjusting cardiovascular risk factors [odds ratio (OR) 1.685, 95% confidence interval (CI) 1.908–2.588, p = 0.017]. When we subcategorized the subjects according to their FRS, increased arterial stiffness was significantly associated with AF in the intermediate- and high-risk groups (OR 3.062, 95% CI 1.39-6.740 and OR3.877, 95% CI 1.142-13.167, respectively, BMI adjusted. High arterial stiffness shows a significant association with AF in those with intermediate or high cardiovascular risk, and can be used for further risk stratification of patients.
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Affiliation(s)
- Goh Eun Chung
- Division of Gastroenterology, Department of Internal Medicine, Healthcare System Gangnam Center, Seoul National University Hospital, Seoul, Korea
| | - Hyo Eun Park
- Division of Cardiology, Department of Internal Medicine, Healthcare System Gangnam Center, Seoul National University Hospital, 39FL. Gangnam Finance Center 737, Yeoksam-Dong, Gangnam-Gu, Seoul, 135-984, Korea.
| | - Heesun Lee
- Division of Cardiology, Department of Internal Medicine, Healthcare System Gangnam Center, Seoul National University Hospital, 39FL. Gangnam Finance Center 737, Yeoksam-Dong, Gangnam-Gu, Seoul, 135-984, Korea
| | - Su-Yeon Choi
- Division of Cardiology, Department of Internal Medicine, Healthcare System Gangnam Center, Seoul National University Hospital, 39FL. Gangnam Finance Center 737, Yeoksam-Dong, Gangnam-Gu, Seoul, 135-984, Korea
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Lim JH, Song JH, Chung SJ, Chung GE, Kim JS. Characteristics of interval gastric neoplasms detected within two years after negative screening endoscopy among Koreans. BMC Cancer 2021; 21:218. [PMID: 33653298 PMCID: PMC7923316 DOI: 10.1186/s12885-021-07929-y] [Citation(s) in RCA: 3] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2020] [Accepted: 02/17/2021] [Indexed: 01/10/2023] Open
Abstract
Background In Korea, where gastric cancer is highly prevalent, biennial endoscopy is recommended among individuals over 40. Even under regular screening, some are still diagnosed at advanced stages. We aimed to identify characteristics of interval gastric neoplasms (IGNs) with rapid progression. Results Newly-diagnosed gastric neoplasms detected in screening endoscopy between January 2004 and May 2016 were reviewed. Among them, those who had previous endoscopy within 2 years were enrolled. Endoscopic findings, family history of gastric cancer, smoking, and H. pylori status were analysed. Totally, 297 IGN cases were enrolled. Among them, 246 were endoscopically treatable IGN (ET-IGN) and 51 were endoscopically untreatable IGNs (EUT-IGN) by the expanded criteria for endoscopic submucosal dissection. Among EUT-IGNs, 78% were undifferentiated cancers (40/51) and 33% showed submucosal invasion (13/40). They were median 2.0 cm in size and more commonly located in the proximal stomach than ET-IGNs (70.6% vs. 41.9%, p < 0.001). EUT-IGN was independently related with age < 60 (OR, 2.09; 95%CI, 1.03–4.26, p = 0.042), H. pylori (OR, 2.81; 95%CI, 1.20–6.63, p = 0.018), and absent/mild gastric atrophy (OR, 2.67; 95%CI, 1.25–5.72, p = 0.011). Overall and disease-specific survival were not significantly different between the two groups, however EUT-IGN tended to have short disease-specific survival (overall survival, p = 0.143; disease-specific survival, p = 0.083). Conclusions Uniform screening endoscopy with two-year interval seems not enough for rapid-growing gastric neoplasms, such as undifferentiated cancers. They tended to develop in adults younger than 60 with H. pylori infection without severe gastric atrophy. More meticulous screening, especially for proximal lesions is warranted for adults younger than 60 with H. pylori infection before development of gastric atrophy. Supplementary Information The online version contains supplementary material available at 10.1186/s12885-021-07929-y.
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Affiliation(s)
- Joo Hyun Lim
- Department of Internal Medicine, Healthcare Research Institute, Healthcare System Gangnam Center, Seoul National University Hospital, 152, Teheran-ro, Gangnam-gu, Seoul, 06236, South Korea
| | - Ji Hyun Song
- Department of Internal Medicine, Healthcare Research Institute, Healthcare System Gangnam Center, Seoul National University Hospital, 152, Teheran-ro, Gangnam-gu, Seoul, 06236, South Korea.
| | - Su Jin Chung
- Department of Internal Medicine, Healthcare Research Institute, Healthcare System Gangnam Center, Seoul National University Hospital, 152, Teheran-ro, Gangnam-gu, Seoul, 06236, South Korea.
| | - Goh Eun Chung
- Department of Internal Medicine, Healthcare Research Institute, Healthcare System Gangnam Center, Seoul National University Hospital, 152, Teheran-ro, Gangnam-gu, Seoul, 06236, South Korea
| | - Joo Sung Kim
- Department of Internal Medicine, Healthcare Research Institute, Healthcare System Gangnam Center, Seoul National University Hospital, 152, Teheran-ro, Gangnam-gu, Seoul, 06236, South Korea.,Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, 101, Daehak-ro, Jongno-gu, Seoul, 03080, South Korea
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Choi JM, Chung GE, Kang SJ, Kwak MS, Yang JI, Park B, Yim JY. Association Between Anxiety and Depression and Nonalcoholic Fatty Liver Disease. Front Med (Lausanne) 2021; 7:585618. [PMID: 33537324 PMCID: PMC7848018 DOI: 10.3389/fmed.2020.585618] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [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: 07/21/2020] [Accepted: 12/10/2020] [Indexed: 02/06/2023] Open
Abstract
Backgrounds: Depression and anxiety disorder are frequently seen in patients with nonalcoholic fatty liver disease (NAFLD). However, the associations between mood disorders and NAFLD have not been fully evaluated. In this study, we investigated the relationship between NAFLD and depression or anxiety in a Korean population. Methods: We conducted a retrospective cross-sectional study that included subjects who underwent abdominal ultrasonography and completed a symptom questionnaire for a routine health check-up. NAFLD was diagnosed and graded according to the ultrasonography findings. Depression and anxiety were assessed using the Beck Depression Inventory and State-Trait Anxiety Inventory, respectively. Results: Among the total of 25,333 subjects, the mean age was 47 years (men, 56.2%), and the prevalence rate of NAFLD was 30.9%. In the multivariate analysis, NAFLD showed a significant association with depression [adjusted odds ratio (OR) 1.43 and 95% confidence interval (CI) 1.14–1.80, p = 0.002] in women. Severe NAFLD significantly correlated with state anxiety and trait anxiety (adjusted OR 1.84 and 95% CI 1.01–3.37, p = 0.047 and adjusted OR 2.45 and 95% CI 1.08–4.85, p = 0.018, respectively) in women. Conclusions: There was a higher tendency of women with NAFLD to suffer from depression with increase in steatosis, and severe stage of steatosis was significantly associated with anxiety in the female compared to non-NAFLD. Understanding the association between NAFLD and mood disorders may have clinical implications for reducing the prevalence of comorbidities.
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Affiliation(s)
- Ji Min Choi
- Department of Internal Medicine and Healthcare System Gangnam Center, Seoul National University Hospital, Seoul, South Korea
| | - Goh Eun Chung
- Department of Internal Medicine and Healthcare System Gangnam Center, Seoul National University Hospital, Seoul, South Korea
| | - Seung Joo Kang
- Department of Internal Medicine and Healthcare System Gangnam Center, Seoul National University Hospital, Seoul, South Korea
| | - Min-Sun Kwak
- Department of Internal Medicine and Healthcare System Gangnam Center, Seoul National University Hospital, Seoul, South Korea
| | - Jong In Yang
- Department of Internal Medicine and Healthcare System Gangnam Center, Seoul National University Hospital, Seoul, South Korea
| | - Boram Park
- Department of Public Health Sciences, Seoul National University, Seoul, South Korea
| | - Jeong Yoon Yim
- Department of Internal Medicine and Healthcare System Gangnam Center, Seoul National University Hospital, Seoul, South Korea
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Lim JH, Kim YS, Lee JE, Youn J, Chung GE, Song JH, Yang SY, Kim JS. Dietary pattern and its association with right-colonic diverticulosis. J Gastroenterol Hepatol 2021; 36:144-150. [PMID: 32525584 DOI: 10.1111/jgh.15145] [Citation(s) in RCA: 4] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/26/2020] [Revised: 05/26/2020] [Accepted: 06/05/2020] [Indexed: 12/17/2022]
Abstract
BACKGROUND AND AIM In East Asia, colonic diverticulosis develops most commonly in the right colon and is known to have different characteristics compared with left-sided one. This study was designed to investigate whether right-colonic diverticulosis is associated with posteriori dietary patterns. METHODS We retrospectively reviewed medical records of prospectively collected cohort that received health check-up in Korea between May 2011 and January 2012. Their anthropometric data, biochemical results, medication history, underlying diseases, colonoscopic findings, and dietary data obtained from semi-quantitative food-frequency questionnaire were analyzed. Three dietary patterns were identified using factor analysis: healthy dietary pattern (vegetables, fish, seaweed, fruits, and beans), meat dietary pattern (red meat, processed meat/fish, fried noodle, poultry, and cephalopods), and snack dietary pattern (bread, sweets, dairy products, nuts, and rice cake). RESULTS Out of the total 1911 patients, 203 (10.6%) had right-colonic diverticulosis, 21 (1.1%) had pan-colonic diverticulosis, and 12 (0.6%) had left-colonic diverticulosis. Among the total, none of the three patterns were associated with right-colonic diverticulosis, under adjustment with age, gender, body mass index, metabolic syndrome, and total energy intake. However, among women, meat dietary pattern was positively associated with right-colonic diverticulosis (odds ratio 1.866, 95% confidence interval: 1.0983-3.173, P = 0.021). CONCLUSION This study demonstrated that meat dietary pattern is positively associated with right-colonic diverticulosis among women.
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Affiliation(s)
- Joo Hyun Lim
- Healthcare System Gangnam Center, Healthcare Research Institute, Seoul National University Hospital, Seoul, Korea
| | - Young Sun Kim
- Healthcare System Gangnam Center, Healthcare Research Institute, Seoul National University Hospital, Seoul, Korea
| | - Jung Eun Lee
- Department of Food and Nutrition, Seoul National University, Seoul, Korea
| | - Jiyoung Youn
- Department of Food and Nutrition, Seoul National University, Seoul, Korea
| | - Goh Eun Chung
- Healthcare System Gangnam Center, Healthcare Research Institute, Seoul National University Hospital, Seoul, Korea
| | - Ji Hyun Song
- Healthcare System Gangnam Center, Healthcare Research Institute, Seoul National University Hospital, Seoul, Korea
| | - Sun Young Yang
- Healthcare System Gangnam Center, Healthcare Research Institute, Seoul National University Hospital, Seoul, Korea
| | - Joo Sung Kim
- Healthcare System Gangnam Center, Healthcare Research Institute, Seoul National University Hospital, Seoul, Korea.,Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, Korea
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38
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Chung GE, Shin E, Kwak MS, In Yang J, Lee JE, Choe EK, Yim JY. The association of genetic polymorphisms with nonalcoholic fatty liver disease in a longitudinal study. BMC Gastroenterol 2020; 20:344. [PMID: 33059586 PMCID: PMC7565807 DOI: 10.1186/s12876-020-01469-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/29/2020] [Accepted: 09/24/2020] [Indexed: 12/23/2022] Open
Abstract
Background Several genetic variants are known to be associated with nonalcoholic fatty liver disease (NAFLD). We aimed to evaluate the longitudinal associations between genetic variants and NAFLD. Methods We performed a genome-wide association study (GWAS) in Korean individuals who underwent repeated health check-ups. NAFLD was defined by ultrasonography and exclusion of secondary causes. Results The subjects had a median age of 50.0 years, and 54.8% were male. The median follow-up duration was 39 months. Among the 3905 subjects without NAFLD at baseline, 874 (22.4%) subjects developed NAFLD, and among the 1818 subjects with NAFLD at baseline, NAFLD regressed in 336 (18.5%) subjects during the follow-up period. After adjusting for age, sex and body mass index, no single-nucleotide polymorphism (SNP) passed Bonferroni correction for genome-wide significance in the development or regression of NAFLD. Among the SNPs that passed the genome-wide suggestiveness threshold (p = 1E-04) in the discovery set in the GWAS, only 1 SNP (rs4906353) showed an association with the development of NAFLD, with marginal significance in the validation set (p-value, discovery set = 9.68E-5 and validation set = 0.00531). Conclusions This exploratory study suggests that longitudinal changes in NAFLD are not associated with genetic variants in the Korean population. These findings provide new insight into genetic mechanisms in the pathogenesis of NAFLD.
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Affiliation(s)
- Goh Eun Chung
- Department of Internal Medicine, Gangnam Healthcare Center, Seoul National University Hospital, 39FL., Gangnam Finance center 737, Yeoksam-Dong, Gangnam-Gu, Seoul, 135-984, South Korea.
| | | | - Min-Sun Kwak
- Department of Internal Medicine, Gangnam Healthcare Center, Seoul National University Hospital, 39FL., Gangnam Finance center 737, Yeoksam-Dong, Gangnam-Gu, Seoul, 135-984, South Korea
| | - Jong In Yang
- Department of Internal Medicine, Gangnam Healthcare Center, Seoul National University Hospital, 39FL., Gangnam Finance center 737, Yeoksam-Dong, Gangnam-Gu, Seoul, 135-984, South Korea
| | | | - Eun Kyung Choe
- Healthcare Research Institute, Seoul National University Hospital, Healthcare System Gangnam Center, Seoul, South Korea
| | - Jeong Yoon Yim
- Department of Internal Medicine, Gangnam Healthcare Center, Seoul National University Hospital, 39FL., Gangnam Finance center 737, Yeoksam-Dong, Gangnam-Gu, Seoul, 135-984, South Korea
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Chung GE, Yoon JW. Response: Sarcopenia Is Significantly Associated with Presence and Severity of Nonalcoholic Fatty Liver Disease (J Obes Metab Syndr 2019;28:129-38). J Obes Metab Syndr 2020; 29:160-162. [PMID: 32518217 PMCID: PMC7338492 DOI: 10.7570/jomes20046] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/19/2020] [Revised: 05/25/2020] [Accepted: 06/05/2020] [Indexed: 12/26/2022] Open
Affiliation(s)
- Goh Eun Chung
- Department of Internal Medicine, Seoul National University Hospital Healthcare System Gangnam Center, Seoul, Korea
| | - Ji Won Yoon
- Department of Internal Medicine, Seoul National University Hospital Healthcare System Gangnam Center, Seoul, Korea
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Chung GE, Yim JY, Kim D, Kwak MS, Yang JI, Park B, An SJ, Kim JS. Nonalcoholic Fatty Liver Disease Is Associated with Benign Prostate Hyperplasia. J Korean Med Sci 2020; 35:e164. [PMID: 32508064 PMCID: PMC7279945 DOI: 10.3346/jkms.2020.35.e164] [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] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/18/2019] [Accepted: 03/31/2020] [Indexed: 01/14/2023] Open
Abstract
BACKGROUND Nonalcoholic fatty liver disease (NAFLD) is associated with a wide spectrum of metabolic abnormalities. This study aimed to evaluate whether NAFLD is associated with benign prostatic hyperplasia (BPH) independent of other risk factors. METHODS A total of 3,508 subjects who underwent prostate and hepatic ultrasonography were enrolled. NAFLD was diagnosed and graded by ultrasonographic findings. BPH was defined by total prostate volume. RESULTS The prevalence of BPH was significantly increased according to NAFLD severity (P < 0.001). The multivariate analysis showed that NAFLD was associated with a 22% increase in the risk of BPH (odds ratio [OR], 1.22; 95% confidence interval [CI], 1.02-1.45). In non-obese subjects, NAFLD was associated with a 41% increase in the risk of BPH (OR, 1.41; 95% CI, 1.14-1.73), and an incremental increase in the risk of BPH according to NAFLD severity was pronounced (adjusted OR [95% CI], 1.32 [1.05-1.68] for mild NAFLD, 1.55 [1.15-2.10] for moderate to severe NAFLD vs. no NAFLD, P for trend = 0.004). However, in the obese population, the association of NAFLD in the risk of BPH was insignificant (P = 0.208). CONCLUSION NAFLD is associated with an increased risk of BPH regardless of metabolic syndrome, especially in non-obese subjects. An incrementally increased risk of BPH according to NAFLD severity is prominent in non-obese subjects with NAFLD. Thus, physicians caring for non-obese patients with NAFLD may consider assessing the risk of BPH and associated urologic conditions.
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Affiliation(s)
- Goh Eun Chung
- Department of Internal Medicine, Healthcare System Gangnam Center, Seoul National University Hospital, Seoul, Korea
| | - Jeong Yoon Yim
- Department of Internal Medicine, Healthcare System Gangnam Center, Seoul National University Hospital, Seoul, Korea.
| | - Donghee Kim
- Division of Gastroenterology and Hepatology, Stanford University School of Medicine, Stanford, CA, USA
| | - Min Sun Kwak
- Department of Internal Medicine, Healthcare System Gangnam Center, Seoul National University Hospital, Seoul, Korea
| | - Jong In Yang
- Department of Internal Medicine, Healthcare System Gangnam Center, Seoul National University Hospital, Seoul, Korea
| | - Boram Park
- Department of Public Health Science, Seoul National University, Seoul, Korea
| | | | - Joo Sung Kim
- Department of Internal Medicine, Healthcare System Gangnam Center, Seoul National University Hospital, Seoul, Korea
- Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, Korea
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41
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Jin EH, Lee D, Bae JH, Kang HY, Kwak MS, Seo JY, Yang JI, Yang SY, Lim SH, Yim JY, Lim JH, Chung GE, Chung SJ, Choi JM, Han YM, Kang SJ, Lee J, Chan Kim H, Kim JS. Improved Accuracy in Optical Diagnosis of Colorectal Polyps Using Convolutional Neural Networks with Visual Explanations. Gastroenterology 2020; 158:2169-2179.e8. [PMID: 32119927 DOI: 10.1053/j.gastro.2020.02.036] [Citation(s) in RCA: 74] [Impact Index Per Article: 18.5] [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: 11/19/2019] [Revised: 01/10/2020] [Accepted: 02/20/2020] [Indexed: 02/08/2023]
Abstract
BACKGROUND & AIMS Narrow-band imaging (NBI) can be used to determine whether colorectal polyps are adenomatous or hyperplastic. We investigated whether an artificial intelligence (AI) system can increase the accuracy of characterizations of polyps by endoscopists of different skill levels. METHODS We developed convolutional neural networks (CNNs) for evaluation of diminutive colorectal polyps, based on efficient neural architecture searches via parameter sharing with augmentation using NBIs of diminutive (≤5 mm) polyps, collected from October 2015 through October 2017 at the Seoul National University Hospital, Healthcare System Gangnam Center (training set). We trained the CNN using images from 1100 adenomatous polyps and 1050 hyperplastic polyps from 1379 patients. We then tested the system using 300 images of 180 adenomatous polyps and 120 hyperplastic polyps, obtained from January 2018 to May 2019. We compared the accuracy of 22 endoscopists of different skill levels (7 novices, 4 experts, and 11 NBI-trained experts) vs the CNN in evaluation of images (adenomatous vs hyperplastic) from 180 adenomatous and 120 hyperplastic polyps. The endoscopists then evaluated the polyp images with knowledge of the CNN-processed results. We conducted mixed-effect logistic and linear regression analyses to determine the effects of AI assistance on the accuracy of analysis of diminutive colorectal polyps by endoscopists (primary outcome). RESULTS The CNN distinguished adenomatous vs hyperplastic diminutive polyps with 86.7% accuracy, based on histologic analysis as the reference standard. Endoscopists distinguished adenomatous vs hyperplastic diminutive polyps with 82.5% overall accuracy (novices, 73.8% accuracy; experts, 83.8% accuracy; and NBI-trained experts, 87.6% accuracy). With knowledge of the CNN-processed results, the overall accuracy of the endoscopists increased to 88.5% (P < .05). With knowledge of the CNN-processed results, the accuracy of novice endoscopists increased to 85.6% (P < .05). The CNN-processed results significantly reduced endoscopist time of diagnosis (from 3.92 to 3.37 seconds per polyp, P = .042). CONCLUSIONS We developed a CNN that significantly increases the accuracy of evaluation of diminutive colorectal polyps (as adenomatous vs hyperplastic) and reduces the time of diagnosis by endoscopists. This AI assistance system significantly increased the accuracy of analysis by novice endoscopists, who achieved near-expert levels of accuracy without extra training. The CNN assistance system can reduce the skill-level dependence of endoscopists and costs.
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Affiliation(s)
- Eun Hyo Jin
- Department of Internal Medicine, Healthcare Research Institute, Seoul National University Hospital Healthcare System Gangnam Center, Seoul, Korea
| | - Dongheon Lee
- Interdisciplinary Program in Bioengineering, Graduate School, Seoul National University, Seoul, Korea
| | - Jung Ho Bae
- Department of Internal Medicine, Healthcare Research Institute, Seoul National University Hospital Healthcare System Gangnam Center, Seoul, Korea
| | - Hae Yeon Kang
- Department of Internal Medicine, Healthcare Research Institute, Seoul National University Hospital Healthcare System Gangnam Center, Seoul, Korea
| | - Min-Sun Kwak
- Department of Internal Medicine, Healthcare Research Institute, Seoul National University Hospital Healthcare System Gangnam Center, Seoul, Korea
| | - Ji Yeon Seo
- Department of Internal Medicine, Healthcare Research Institute, Seoul National University Hospital Healthcare System Gangnam Center, Seoul, Korea
| | - Jong In Yang
- Department of Internal Medicine, Healthcare Research Institute, Seoul National University Hospital Healthcare System Gangnam Center, Seoul, Korea
| | - Sun Young Yang
- Department of Internal Medicine, Healthcare Research Institute, Seoul National University Hospital Healthcare System Gangnam Center, Seoul, Korea
| | - Seon Hee Lim
- Department of Internal Medicine, Healthcare Research Institute, Seoul National University Hospital Healthcare System Gangnam Center, Seoul, Korea
| | - Jeong Yoon Yim
- Department of Internal Medicine, Healthcare Research Institute, Seoul National University Hospital Healthcare System Gangnam Center, Seoul, Korea
| | - Joo Hyun Lim
- Department of Internal Medicine, Healthcare Research Institute, Seoul National University Hospital Healthcare System Gangnam Center, Seoul, Korea
| | - Goh Eun Chung
- Department of Internal Medicine, Healthcare Research Institute, Seoul National University Hospital Healthcare System Gangnam Center, Seoul, Korea
| | - Su Jin Chung
- Department of Internal Medicine, Healthcare Research Institute, Seoul National University Hospital Healthcare System Gangnam Center, Seoul, Korea
| | - Ji Min Choi
- Department of Internal Medicine, Healthcare Research Institute, Seoul National University Hospital Healthcare System Gangnam Center, Seoul, Korea
| | - Yoo Min Han
- Department of Internal Medicine, Healthcare Research Institute, Seoul National University Hospital Healthcare System Gangnam Center, Seoul, Korea
| | - Seung Joo Kang
- Department of Internal Medicine, Healthcare Research Institute, Seoul National University Hospital Healthcare System Gangnam Center, Seoul, Korea
| | - Jooyoung Lee
- Department of Internal Medicine, Liver Research Institute, Seoul National University College of Medicine, Seoul, Korea
| | - Hee Chan Kim
- Interdisciplinary Program in Bioengineering, Graduate School, Seoul National University, Seoul, Korea; Department of Biomedical Engineering College of Medicine, Seoul National University, Seoul, Korea; Institute of Medical & Biological Engineering, Medical Research Center, Seoul National University, Seoul, Korea.
| | - Joo Sung Kim
- Department of Internal Medicine, Healthcare Research Institute, Seoul National University Hospital Healthcare System Gangnam Center, Seoul, Korea; Department of Internal Medicine, Liver Research Institute, Seoul National University College of Medicine, Seoul, Korea.
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Chung GE, Yoon JW. Response: Sarcopenia Is Significantly Associated with Presence and Severity of Nonalcoholic Fatty Liver Disease (J Obes Metab Syndr 2019;28:129-38). J Obes Metab Syndr 2020; 29:78-80. [PMID: 32174092 PMCID: PMC7118006 DOI: 10.7570/jomes20009] [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] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/09/2020] [Revised: 01/27/2020] [Accepted: 02/13/2020] [Indexed: 11/30/2022] Open
Affiliation(s)
- Goh Eun Chung
- Department of Internal Medicine, Seoul National University Hospital Healthcare System Gangnam Center, Seoul, Korea
| | - Ji Won Yoon
- Department of Internal Medicine, Seoul National University Hospital Healthcare System Gangnam Center, Seoul, Korea
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Park HE, Lee H, Choi SY, Kim HS, Chung GE. The risk of atrial fibrillation in patients with non-alcoholic fatty liver disease and a high hepatic fibrosis index. Sci Rep 2020; 10:5023. [PMID: 32193478 PMCID: PMC7081198 DOI: 10.1038/s41598-020-61750-4] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2019] [Accepted: 03/02/2020] [Indexed: 12/12/2022] Open
Abstract
Previous epidemiological studies focusing on the association between liver disease and atrial fibrillation (AF) show interesting but inconsistent findings. Patients with liver disease have a higher AF risk; however, it is unknown whether the liver fibrosis index can predict AF risk. The medical records of a healthy population undergoing routine health examinations at Healthcare System Gangnam Center, Seoul National University Hospital, were reviewed retrospectively. After excluding subjects with a history of liver disease and known cardiovascular disease, 74,946 subjects with nonalcoholic fatty liver disease (NAFLD) were evaluated. The mean age was 51 ± 11 years, and 71.9% were male. AF was found in 380 (0.5%) subjects. Using univariate analyses, age, male sex, body mass index, hypertension, and diabetes were significantly associated with AF. The fibrosis 4 index (FIB 4) showed significant correlations with AF [unadjusted odds ratio (OR) 3.062 and 95% confidence interval (CI) 2.605-3.600, p = 0.000; adjusted OR 2.255 and 95% CI 1.744-2.915, p = 0.000, with cardiometabolic risk factors adjusted]. In conclusion, NAFLD subjects with higher FIB 4 were associated with increased AF risk. The noninvasive determination of liver fibrosis indices can have clinical implications on the early identification of NAFLD in patients at risk for AF.
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Affiliation(s)
- Hyo Eun Park
- Division of Cardiology, Department of Internal Medicine, Healthcare System Gangnam Center, Seoul National University Hospital, Seoul, Korea
| | - Heesun Lee
- Division of Cardiology, Department of Internal Medicine, Healthcare System Gangnam Center, Seoul National University Hospital, Seoul, Korea
| | - Su-Yeon Choi
- Division of Cardiology, Department of Internal Medicine, Healthcare System Gangnam Center, Seoul National University Hospital, Seoul, Korea
| | - Hua Sun Kim
- Division of Radiology, Department of Internal Medicine, Healthcare System Gangnam Center, Seoul National University Hospital, Seoul, Korea
| | - Goh Eun Chung
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Healthcare System Gangnam Center, Seoul National University Hospital, Seoul, Korea.
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Chung GE, Heo NJ, Kim D, Kwak MS, Yim JY, Kim JS, Ahmed A. Association between advanced fibrosis in fatty liver disease and overall mortality based on body fat distribution. J Gastroenterol Hepatol 2020; 35:90-96. [PMID: 31272131 DOI: 10.1111/jgh.14778] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [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: 04/25/2019] [Revised: 05/31/2019] [Accepted: 06/29/2019] [Indexed: 01/13/2023]
Abstract
BACKGROUND Studies on association between fatty liver disease and overall mortality have yielded conflicting results. We evaluated the impact of fatty liver disease and advanced fibrosis on overall morality with a focus on body size and abdominal fat distribution measured by computed tomography. METHODS We performed a prospective cohort study including 34 080 subjects (mean age, 51.4 years; 58.6% men) who underwent abdominal ultrasonography and fat computed tomography, from 2007 to 2015. Fatty liver was diagnosed by ultrasonography, and advanced fibrosis was defined as high probability of advanced fibrosis based on three noninvasive methods, aspartate aminotransferase-to-platelet ratio index, non-alcoholic fatty liver disease fibrosis score, and fibrosis-4 score. Body size was categorized by body mass index into obese (≥ 25 kg/m2 ) or nonobese (< 25 kg/m2 ). Multivariate proportional Cox hazard regression analyses were performed. RESULTS The prevalence of fatty liver disease was 37.5%, while the prevalence of advanced fibrosis in fatty liver disease was 1.8%. During a median follow-up of 87 months (interquartile range, 62-110), 296 deaths occurred. Fatty liver disease was not associated with higher overall mortality (multivariate-adjusted hazard ratio [HR] 1.02, 95% confidence interval [CI] 0.77-1.34), while increased subcutaneous adiposity was associated with decreased mortality (HR 0.72, 95% CI 0.60-0.88). Advanced fibrosis resulted in a 3.5-fold increase in overall mortality (adjusted HR 3.52, 95% CI 1.86-6.65), which was more pronounced in the nonobese. CONCLUSIONS While fatty liver disease did not impact overall mortality, subcutaneous adiposity was associated with reduced overall mortality. Advanced fibrosis was an independent predictor of increase in overall mortality.
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Affiliation(s)
- Goh Eun Chung
- Department of Internal Medicine, Healthcare System Gangnam Center, Seoul National University Hospital, Seoul, Korea
| | - Nam Ju Heo
- Department of Internal Medicine, Healthcare System Gangnam Center, Seoul National University Hospital, Seoul, Korea
| | - Donghee Kim
- Division of Gastroenterology and Hepatology, Stanford University School of Medicine, Stanford, California, USA
| | - Min-Sun Kwak
- Department of Internal Medicine, Healthcare System Gangnam Center, Seoul National University Hospital, Seoul, Korea
| | - Jeong Yoon Yim
- Department of Internal Medicine, Healthcare System Gangnam Center, Seoul National University Hospital, Seoul, Korea
| | - Joo Sung Kim
- Department of Internal Medicine, Healthcare System Gangnam Center, Seoul National University Hospital, Seoul, Korea.,Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, Korea
| | - Aijaz Ahmed
- Division of Gastroenterology and Hepatology, Stanford University School of Medicine, Stanford, California, USA
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45
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Bae JH, Lee C, Kang HY, Kwak MS, Doo EY, Seo JY, Song JH, Yang SY, Yang JI, Lim SH, Yim JY, Lim JH, Chung GE, Chung SJ, Jin EH, Park B, Kim JS. Improved Real-Time Optical Diagnosis of Colorectal Polyps Following a Comprehensive Training Program. Clin Gastroenterol Hepatol 2019; 17:2479-2488.e4. [PMID: 30772588 DOI: 10.1016/j.cgh.2019.02.019] [Citation(s) in RCA: 9] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/05/2018] [Revised: 02/08/2019] [Accepted: 02/10/2019] [Indexed: 02/07/2023]
Abstract
BACKGROUND & AIMS The optimal training method for endoscopic characterization of colorectal polyps using narrow-band imaging is uncertain, and sessile serrated lesions (SSLs) optical diagnosis data are lacking. We aimed to evaluate a comprehensive training program for real-time optical diagnosis of colorectal polyps, including SSLs. METHODS We performed a single-institution prospective study of 15 endoscopists trained with the Workgroup Serrated Polyps and Polyposis classification system. After the first phase of in vivo optical diagnosis, their performances were evaluated. After re-education for insufficient competency, they began the second phase. The learning curves and performance on 2 preservation and incorporation of valuable endoscopic innovations benchmarks were assessed. RESULTS A total of 7294 polyps, including 486 SSLs, were diagnosed in real-time. The overall accuracy improved from 73.5% in the first phase to 77.1% in the second. The accuracy with high confidence was 79.4% and 85.1% in the first and second phases, respectively. In the first and second phases, the negative predictive values for diminutive neoplastic polyps were 82.1% and 92.5%, respectively, and concordances of the surveillance intervals were 80.7% and 89.7%, respectively. Eight endoscopists achieved the preservation and incorporation of valuable endoscopic innovations benchmarks after the second phase compared with none after the first. In contrast, the high confidence rate decreased from 74.6% to 70.2% as training progressed. CONCLUSION A comprehensive training program for real-time optical diagnosis significantly improved performance and reduced individual variability in less-experienced endoscopists. ClinicalTrials.gov no: NCT02516748.
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Affiliation(s)
- Jung Ho Bae
- Department of Internal Medicine and Healthcare Research Institute, Healthcare System Gangnam Center, Seoul National University Hospital, Seoul, Korea
| | - Changhyun Lee
- Department of Internal Medicine and Healthcare Research Institute, Healthcare System Gangnam Center, Seoul National University Hospital, Seoul, Korea
| | - Hae Yeon Kang
- Department of Internal Medicine and Healthcare Research Institute, Healthcare System Gangnam Center, Seoul National University Hospital, Seoul, Korea
| | - Min-Sun Kwak
- Department of Internal Medicine and Healthcare Research Institute, Healthcare System Gangnam Center, Seoul National University Hospital, Seoul, Korea
| | - Eun Young Doo
- Department of Internal Medicine and Healthcare Research Institute, Healthcare System Gangnam Center, Seoul National University Hospital, Seoul, Korea
| | - Ji Yeon Seo
- Department of Internal Medicine and Healthcare Research Institute, Healthcare System Gangnam Center, Seoul National University Hospital, Seoul, Korea
| | - Ji Hyun Song
- Department of Internal Medicine and Healthcare Research Institute, Healthcare System Gangnam Center, Seoul National University Hospital, Seoul, Korea
| | - Sun Young Yang
- Department of Internal Medicine and Healthcare Research Institute, Healthcare System Gangnam Center, Seoul National University Hospital, Seoul, Korea
| | - Jong In Yang
- Department of Internal Medicine and Healthcare Research Institute, Healthcare System Gangnam Center, Seoul National University Hospital, Seoul, Korea
| | - Seon Hee Lim
- Department of Internal Medicine and Healthcare Research Institute, Healthcare System Gangnam Center, Seoul National University Hospital, Seoul, Korea
| | - Jeong Yoon Yim
- Department of Internal Medicine and Healthcare Research Institute, Healthcare System Gangnam Center, Seoul National University Hospital, Seoul, Korea
| | - Joo Hyun Lim
- Department of Internal Medicine and Healthcare Research Institute, Healthcare System Gangnam Center, Seoul National University Hospital, Seoul, Korea
| | - Goh Eun Chung
- Department of Internal Medicine and Healthcare Research Institute, Healthcare System Gangnam Center, Seoul National University Hospital, Seoul, Korea
| | - Su Jin Chung
- Department of Internal Medicine and Healthcare Research Institute, Healthcare System Gangnam Center, Seoul National University Hospital, Seoul, Korea
| | - Eun Hyo Jin
- Department of Internal Medicine and Healthcare Research Institute, Healthcare System Gangnam Center, Seoul National University Hospital, Seoul, Korea
| | - Boram Park
- Department of Public Health Science, Seoul National University, Seoul, Korea
| | - Joo Sung Kim
- Department of Internal Medicine and Healthcare Research Institute, Healthcare System Gangnam Center, Seoul National University Hospital, Seoul, Korea; Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, Korea.
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Chung GE, Kim MJ, Yim JY, Kim JS, Yoon JW. Sarcopenia Is Significantly Associated with Presence and Severity of Nonalcoholic Fatty Liver Disease. J Obes Metab Syndr 2019; 28:129-138. [PMID: 31294345 PMCID: PMC6604841 DOI: 10.7570/jomes.2019.28.2.129] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/16/2019] [Revised: 03/13/2019] [Accepted: 06/13/2019] [Indexed: 12/14/2022] Open
Abstract
Background The association between nonalcoholic fatty liver disease (NAFLD) and sarcopenia has been suggested. We investigated the association between sarcopenia and NAFLD independent of visceral adiposity and searched for the clinical characteristics that affect this association. Methods We performed a retrospective study including of 5,989 subjects (mean age, 53.2 years; men, 57.3%) who underwent bioelectrical impedance analysis (BIA) and abdominal ultrasonography in 2012. The appendicular skeletal muscle mass (ASM) was assessed by BIA method. Sarcopenia was defined as ASM/weight (ASM%) <2 standard deviation of the mean for healthy young reference population. NAFLD was diagnosed by ultrasonography. Results The prevalence of sarcopenia was 5.3%. The prevalence of NAFLD was significantly higher in subjects with sarcopenia than in those without (69.5% vs. 36.5%, P<0.001). After adjusting with age, sex, visceral fat area, hypertension, diabetes, total and low-density lipoprotein cholesterol, subjects with sarcopenia showed significantly high odds of NAFLD (odds ratio [OR], 1.37; 95% confidence interval [CI], 1.02–1.84; P=0.036). Subjects with sarcopenia have more likely severe grade of NAFLD compared to non-sarcopenic group (OR, 1.58; 95% CI, 1.25–2.00; P<0.001). There was significant interaction for effect modification in the association between sarcopenia and NAFLD by age (P of interaction for effect modification, 0.007). Conclusion Sarcopenia was significantly associated with the presence and the severity of ultrasonography-graded NAFLD in our study population independent of visceral fatness and other metabolic confounder. Younger age showed greater magnitude of association between sarcopenia and NAFLD.
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Affiliation(s)
- Goh Eun Chung
- Department of Internal Medicine, Seoul National University Hospital Healthcare System Gangnam Center, Seoul, Korea
| | - Min Joo Kim
- Department of Internal Medicine, Seoul National University Hospital Healthcare System Gangnam Center, Seoul, Korea
| | - Jeong Yoon Yim
- Department of Internal Medicine, Seoul National University Hospital Healthcare System Gangnam Center, Seoul, Korea
| | - Joo Sung Kim
- Department of Internal Medicine, Seoul National University Hospital Healthcare System Gangnam Center, Seoul, Korea.,Division of Gastroenterology, Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Korea
| | - Ji Won Yoon
- Department of Internal Medicine, Seoul National University Hospital Healthcare System Gangnam Center, Seoul, Korea
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Chung GE, Youn J, Kim YS, Lee JE, Yang SY, Lim JH, Song JH, Doo EY, Kim JS. Dietary patterns are associated with the prevalence of nonalcoholic fatty liver disease in Korean adults. Nutrition 2019; 62:32-38. [PMID: 30826597 DOI: 10.1016/j.nut.2018.11.021] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2018] [Revised: 10/29/2018] [Accepted: 11/17/2018] [Indexed: 02/06/2023]
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Park HE, Lee H, Choi SY, Kwak MS, Yang JI, Yim JY, Chung GE. Clinical significance of hepatic steatosis according to coronary plaque morphology: assessment using controlled attenuation parameter. J Gastroenterol 2019; 54:271-280. [PMID: 30284617 DOI: 10.1007/s00535-018-1516-5] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [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: 07/10/2018] [Accepted: 09/27/2018] [Indexed: 02/04/2023]
Abstract
BACKGROUND Nonalcoholic fatty liver disease (NAFLD) plays a significant role in coronary atherosclerosis, independent of shared metabolic risk factors. The measurement of the controlled attenuation parameter (CAP) has shown to allow early and noninvasive detection of NAFLD at subclinical stage. We evaluated the significance of CAP-defined NAFLD in association with the presence of any type of coronary plaques and different plaque compositions. METHODS We conducted a retrospective cohort of apparently healthy subjects who had liver Fibroscan and coronary computed tomography during health screening exams. RESULTS A greater number of subjects with CAP-defined NAFLD was found in group with coronary plaques (61.3% vs. 73.5%, p = 0.005 without vs. with any type of plaque). From multivariate regression model, CAP ≥ 222 dB/m was an independent and significant parameter associated with the presence of coronary plaques, after adjusting possible confounders (OR 1.624, 95% 1.047-2.518, p = 0.030). Interestingly, CAP ≥ 222 dB/m was significantly associated with non-calcified plaque (adjusted OR 3.528, 95% CI 1.463-8.511, p = 0.005), whereas it was not significant in calcified plaques (p = 0.171). CONCLUSION CAP-defined NAFLD is independently associated with coronary plaques, especially non-calcified plaques. The association between NAFLD and non-calcified plaques suggests that particular attention should be given to the subjects with NAFLD for primary prevention.
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Affiliation(s)
- Hyo Eun Park
- Division of Cardiology, Department of Internal Medicine, Healthcare System Gangnam Center, Seoul National University Hospital, Seoul, Korea
| | - Heesun Lee
- Division of Cardiology, Department of Internal Medicine, Healthcare System Gangnam Center, Seoul National University Hospital, Seoul, Korea
| | - Su-Yeon Choi
- Division of Cardiology, Department of Internal Medicine, Healthcare System Gangnam Center, Seoul National University Hospital, Seoul, Korea
| | - Min-Sun Kwak
- Division of Gastroenterology, Department of Internal Medicine, Healthcare System Gangnam Center, Seoul National University Hospital, 39FL. Gangnam Finance Center 737, Yeoksam-Dong, Gangnam-Gu, Seoul, 135-984, Korea
| | - Jong In Yang
- Division of Gastroenterology, Department of Internal Medicine, Healthcare System Gangnam Center, Seoul National University Hospital, 39FL. Gangnam Finance Center 737, Yeoksam-Dong, Gangnam-Gu, Seoul, 135-984, Korea
| | - Jeong Yoon Yim
- Division of Gastroenterology, Department of Internal Medicine, Healthcare System Gangnam Center, Seoul National University Hospital, 39FL. Gangnam Finance Center 737, Yeoksam-Dong, Gangnam-Gu, Seoul, 135-984, Korea
| | - Goh Eun Chung
- Division of Gastroenterology, Department of Internal Medicine, Healthcare System Gangnam Center, Seoul National University Hospital, 39FL. Gangnam Finance Center 737, Yeoksam-Dong, Gangnam-Gu, Seoul, 135-984, Korea.
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Chung GE, Lee Y, Yim JY, Choe EK, Kwak MS, Yang JI, Park B, Lee JE, Kim JA, Kim JS. Genetic Polymorphisms of PNPLA3 and SAMM50 Are Associated with Nonalcoholic Fatty Liver Disease in a Korean Population. Gut Liver 2018; 12:316-323. [PMID: 29271184 PMCID: PMC5945263 DOI: 10.5009/gnl17306] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/11/2017] [Revised: 08/17/2017] [Accepted: 08/17/2017] [Indexed: 12/14/2022] Open
Abstract
Background/Aims The development of nonalcoholic fatty liver disease (NAFLD) is associated with multiple genetic and environmental factors. Methods We performed a genome-wide association study to identify the genetic factors related to NAFLD in a Korean population-based sample of 1,593 subjects with NAFLD and 2,816 controls. We replicated the data in another sample that included 744 NAFLD patients and 1,137 controls. We investigated single-nucleotide polymorphisms (SNPs) that were related to NAFLD. Results After adjusting for age, sex and body mass index, rs738409, rs12483959 and rs2281135, located in the PNPLA3 gene, were validated in our population (p<8.56×10−8) in the same linkage disequilibrium block. Additionally, rs2143571, rs3761472, and rs2073080 in the SAMM50 gene showed significant associations with NAFLD (p<8.56×10−8). Furthermore, these six SNPs showed significant associations with the severity of fatty liver (all p<2.0×10−10 in the discovery set and p<2.0×10−6 in the validation set) and NAFLD, with elevated levels of alanine aminotransferase (all p<2.0×10−10 in the discovery set and p<2.0×10−6 in the validation set). Conclusions We demonstrated that the PNPLA3 and SAMM50 genes are significantly associated with the presence and severity of NAFLD in a Korean population. These findings confirm the important roles of genetic factors in the pathogenesis of NAFLD.
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Affiliation(s)
- Goh Eun Chung
- Department of Internal Medicine, Seoul National University Hospital, Seoul, Korea
| | - Young Lee
- Healthcare Research Institute, Healthcare System Gangnam Center, Seoul National University Hospital, Seoul, Korea
| | - Jeong Yoon Yim
- Department of Internal Medicine, Seoul National University Hospital, Seoul, Korea.,Healthcare Research Institute, Healthcare System Gangnam Center, Seoul National University Hospital, Seoul, Korea
| | - Eun Kyung Choe
- Healthcare Research Institute, Healthcare System Gangnam Center, Seoul National University Hospital, Seoul, Korea
| | - Min-Sun Kwak
- Department of Internal Medicine, Seoul National University Hospital, Seoul, Korea
| | - Jong In Yang
- Department of Internal Medicine, Seoul National University Hospital, Seoul, Korea
| | - Boram Park
- Department of Public Health Science, Graduate School of Public Health, Seoul National University, Seoul, Korea
| | | | | | - Joo Sung Kim
- Department of Internal Medicine, Seoul National University Hospital, Seoul, Korea.,Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, Korea
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Lee CH, Choi SH, Chung GE, Park B, Kwak MS. Nonalcoholic fatty liver disease is associated with decreased lung function. Liver Int 2018; 38:2091-2100. [PMID: 29660233 DOI: 10.1111/liv.13860] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [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: 02/12/2018] [Accepted: 04/07/2018] [Indexed: 12/20/2022]
Abstract
BACKGROUND & AIMS The association between nonalcoholic fatty liver disease and lung function has not been fully examined. The aim of this study was to clarify the association between nonalcoholic fatty liver disease and lung function in general population by performing cross-sectional and longitudinal analysis. METHODS Participants without hepatic and respiratory disease who underwent regular health exams including hepatic sonography and spirometry with at least 3 years' follow-up were included. In cross-sectional analysis, the association between nonalcoholic fatty liver disease and lung function at baseline was examined with multiple regression models. The longitudinal analysis was performed by mixed linear regression models with propensity score matching. RESULTS Of 11 892 eligible participants (mean age, 47.7 years; male, 47.2%), 3815(32.1%) had nonalcoholic fatty liver disease based on sonography. In cross-sectional analysis, the nonalcoholic fatty liver disease group had lower adjusted forced expiratory volume in 1-second (men, 3.52 vs 3.44 L, P < .001; women, 2.62 vs 2.45 L, P < .001) and forced vital capacity (men, 4.33 vs 4.24 L, P < .001; women, 3.11 vs 2.97 L, P < .001) than the control group. In longitudinal analysis, during the mean follow-up period of 6.6 years, there were no significant differences in forced expiratory volume in 1-second or forced vital capacity decline rates between two groups in the propensity score-matched cohorts (n = 4558). However, those with high nonalcoholic fatty liver disease fibrosis score and fibrosis-4 (men, -21.7 vs -27.4 mL/y, P = .001; women, -22.4 vs -27.9 mL/y, P = .016) showed significantly faster decline in forced vital capacity compared to those with low scores. CONCLUSIONS Nonalcoholic fatty liver disease was associated with decreased lung function at baseline but was not associated with accelerated lung function decline in the propensity score-matched cohort. However, hepatic fibrosis was significantly associated with rapid forced vital capacity decline.
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Affiliation(s)
- Chang-Hoon Lee
- Department of Internal Medicine, Seoul National University Hospital, Seoul, Korea
| | - Seung Ho Choi
- Department of Internal Medicine, Healthcare System Gangnam Center, Healthcare Research Institute, Seoul National University Hospital, Seoul, Korea
| | - Goh Eun Chung
- Department of Internal Medicine, Healthcare System Gangnam Center, Healthcare Research Institute, Seoul National University Hospital, Seoul, Korea
| | - Boram Park
- Department of Public Health Science, Seoul National University, Seoul, Korea
| | - Min-Sun Kwak
- Department of Internal Medicine, Healthcare System Gangnam Center, Healthcare Research Institute, Seoul National University Hospital, Seoul, Korea
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