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Wang S, Zhang C, Zhang G, Yuan Z, Liu Y, Ding L, Sun X, Jia H, Xue F. Association between white blood cell count and non-alcoholic fatty liver disease in urban Han Chinese: a prospective cohort study. BMJ Open 2016; 6:e010342. [PMID: 27251683 PMCID: PMC4893843 DOI: 10.1136/bmjopen-2015-010342] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
OBJECTIVES The white blood cell (WBC) count is a simple and convenient marker of inflammation for use in medical practice; however, its association with non-alcoholic fatty liver disease (NAFLD) has not been determined. We examined the relationship between WBC and NAFLD to provide a convenient and useful marker for the prediction of NAFLD. SETTING A longitudinal cohort participating in a large health check-up programme for the Chinese population was selected and followed up from 2005 to 2011. PARTICIPANTS A total of 21 307 male and female participants without NAFLD who underwent health check-ups at least twice between 2005 and 2011 were included in this study. 15 201 participants (7286 men and 7915 women) were eligible for inclusion. RESULTS The baseline distribution of age, WBC, body mass index (BMI), systolic blood pressure (SBP), diastolic blood pressure (DBP), fasting plasma glucose (FPG), total cholesterol (TC), triglyceride (TG), high-density lipoprotein cholesterol (HDL-C), low-density lipoprotein cholesterol (LDL-C), serum total protein (TP), albumin (ALB) and globin (GLO) and the prevalence of males, hypertension, hyperglycaemia, smoking and regular exercise were significantly different between the incident NAFLD and non-NAFLD groups (p<0.05). Cox proportional hazards regression analysis was performed to estimate the HRs and 95% CIs of WBC, which predicted the occurrence of NAFLD. Compared with the lowest WBC quartile (Q1), the HRs and 95% CIs of the other WBC quartiles (Q2, Q3 and Q4) for incident NAFLD were 1.090 (0.978 to 1.215), 1.174 (1.055 to 1.305) and 1.152 (1.035 to 1.281), respectively, after adjusting for age, gender, smoking, regular exercise, BMI, hypertension, hyperglycaemia, TC, TG, HDL-C, LDL-C, ALB and GLO. CONCLUSIONS Our study clearly showed that WBC count was a significant factor associated with incident NAFLD in Han Chinese.
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Affiliation(s)
- Shukang Wang
- Department of Biostatistics, School of Public Health, Shandong University, Jinan, China
| | - Chengqi Zhang
- Health Management Center, Shandong Provincial QianFoShan Hospital, Jinan, China
| | - Guang Zhang
- Health Management Center, Shandong Provincial QianFoShan Hospital, Jinan, China
| | - Zhongshang Yuan
- Department of Biostatistics, School of Public Health, Shandong University, Jinan, China
| | - Yanxun Liu
- Department of Biostatistics, School of Public Health, Shandong University, Jinan, China
| | - Lijie Ding
- Department of Biostatistics, School of Public Health, Shandong University, Jinan, China
| | - Xiubin Sun
- Department of Biostatistics, School of Public Health, Shandong University, Jinan, China
| | - Hongying Jia
- The Second Hospital of Shandong University, Jinan, China
| | - Fuzhong Xue
- Department of Biostatistics, School of Public Health, Shandong University, Jinan, China
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Jin LX, Hong MZ. Influence of hepatic steatosis on chronic hepatitis B. Shijie Huaren Xiaohua Zazhi 2016; 24:1366-1371. [DOI: 10.11569/wcjd.v24.i9.1366] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Worldwide, nonalcoholic fatty liver disease (NAFLD) has a high prevalence with the rising rates of overweight and/or obesity. Chronic hepatitis B (CHB) virus infection is another common cause of infectious liver diseases. In practice, the overlap between NAFLD and CHB is rather common. In this review, we summarize the relationship between NAFLD and CHB, the influence of NAFLD on CHB, and the role of the metabolic syndrome in the development of hepatic fibrosis, cirrhosis and hepatocellular carcinoma. Recent advances in understanding the reason CHB is prone to overlap NAFLD will be discussed. The adverse effects caused by NAFLD on the treatment and progression of CHB will be also elucidated. NAFLD overlapping CHB often raises a great challenge to the clinicians, in terms of diagnosis or treatment. Therefore, appropriate management of this complex situation is needed.
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Petta S, Valenti L, Bugianesi E, Targher G, Bellentani S, Bonino F, Lonardo A, Marra F, Mancini M, Miele L, Nobili V, Baroni GS, Alessandro F, Ballestri S, Rossana Brunetto M, Coco B, Grieco A, Fargion S, Kondili L, Nascimbeni F, Prinster A, Romagnoli D, Taddei S, Vanni E, Vella S. A "systems medicine" approach to the study of non-alcoholic fatty liver disease. Dig Liver Dis 2016; 48:333-42. [PMID: 26698409 DOI: 10.1016/j.dld.2015.10.027] [Citation(s) in RCA: 49] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/24/2015] [Revised: 10/18/2015] [Accepted: 10/31/2015] [Indexed: 02/07/2023]
Abstract
The prevalence of fatty liver (steatosis) in the general population is rapidly increasing worldwide. The progress of knowledge in the physiopathology of fatty liver is based on the systems biology approach to studying the complex interactions among different physiological systems. Similarly, translational and clinical research should address the complex interplay between these systems impacting on fatty liver. The clinical needs drive the applications of systems medicine to re-define clinical phenotypes, assessing the multiple nature of disease susceptibility and progression (e.g. the definition of risk, prognosis, diagnosis criteria, and new endpoints of clinical trials). Based on this premise and in light of recent findings, the complex mechanisms involved in the pathology of fatty liver and their impact on the short- and long-term clinical outcomes of cardiovascular, metabolic liver diseases associated with steatosis are presented in this review using a new "systems medicine" approach. A new data set is proposed for studying the impairments of different physiological systems that have an impact on fatty liver in different subsets of subjects and patients.
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Affiliation(s)
- Salvatore Petta
- Section of Gastroenterology, Di.Bi.M.I.S Policlinico Paolo Giaccone Hospital, University of Palermo, Italy
| | - Luca Valenti
- Internal Medicine, Foundation IRCCS Ca' Granda Ospedale Maggiore Policlinico, Department of Pathophysiology and Transplantation, University of Milan, Italy
| | - Elisabetta Bugianesi
- Gastroenterology and Hepatology, Department of Medical Sciences, Città della Salute e della Scienza di Torino Hospital, University of Turin, Italy
| | - Giovanni Targher
- Section of Endocrinology, Diabetes and Metabolism, Department of Medicine, University Hospital of Verona, Italy
| | - Stefano Bellentani
- Shrewsbury and Telford NHS Trust, Department of Gastroenterology, Shrewsbury, UK; Fondazione Italiana Fegato, Bassovizza, Trieste, Italy
| | - Ferruccio Bonino
- General Medicine 2, Department of Clinical and Experimental Medicine, University Hospital of Pisa, Italy.
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Zhan YT, Su HY, An W. Glycosyltransferases and non-alcoholic fatty liver disease. World J Gastroenterol 2016; 22:2483-2493. [PMID: 26937136 PMCID: PMC4768194 DOI: 10.3748/wjg.v22.i8.2483] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/11/2015] [Revised: 10/22/2015] [Accepted: 11/19/2015] [Indexed: 02/06/2023] Open
Abstract
Non-alcoholic fatty liver disease (NAFLD) is the most common form of chronic liver disease and its incidence is increasing worldwide. However, the underlying mechanisms leading to the development of NAFLD are still not fully understood. Glycosyltransferases (GTs) are a diverse class of enzymes involved in catalyzing the transfer of one or multiple sugar residues to a wide range of acceptor molecules. GTs mediate a wide range of functions from structure and storage to signaling, and play a key role in many fundamental biological processes. Therefore, it is anticipated that GTs have a role in the pathogenesis of NAFLD. In this article, we present an overview of the basic information on NAFLD, particularly GTs and glycosylation modification of certain molecules and their association with NAFLD pathogenesis. In addition, the effects and mechanisms of some GTs in the development of NAFLD are summarized.
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Association between Dietary Vitamin C Intake and Non-Alcoholic Fatty Liver Disease: A Cross-Sectional Study among Middle-Aged and Older Adults. PLoS One 2016; 11:e0147985. [PMID: 26824361 PMCID: PMC4732670 DOI: 10.1371/journal.pone.0147985] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2015] [Accepted: 01/11/2016] [Indexed: 01/01/2023] Open
Abstract
BACKGROUND Non-alcoholic fatty liver disease (NAFLD) has become one of the most prevalent chronic liver disease all over the world. The objective of this study was to evaluate the association between dietary vitamin C intake and NAFLD. METHOD Subjects were diagnosed with NAFLD by abdominal ultrasound examination and the consumption of alcohol was less than 40g/day for men or less than 20g/day for women. Vitamin C intake was classified into four categories according to the quartile distribution in the study population: ≤74.80 mg/day, 74.81-110.15 mg/day, 110.16-146.06 mg/day, and ≥146.07 mg/day. The energy and multi-variable adjusted odds ratio (OR), as well as their corresponding 95% confidence interval (CI), were used to determine the relationship between dietary vitamin C intake and NAFLD through logistic regression. RESULT The present cross-sectional study included 3471 subjects. A significant inverse association between dietary vitamin C intake and NAFLD was observed in the energy-adjusted and the multivariable model. The multivariable adjusted ORs (95%CI) for NAFLD were 0.69 (95%CI: 0.54-0.89), 0.93 (95%CI: 0.72-1.20), and 0.71 (95%CI: 0.53-0.95) in the second, third and fourth dietary vitamin C intake quartiles, respectively, compared with the lowest (first) quartile. The relative odds of NAFLD was decreased by 0.71 times in the fourth quartile of dietary vitamin C intake compared with the lowest quartile. After stratifying data by sex or the status of obesity, the inverse association remained valid in the male population or non-obesity population, but not in the female population or obesity population. CONCLUSION There might be a moderate inverse association between dietary vitamin C intake and NAFLD in middle-aged and older adults, especially for the male population and non-obesity population.
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Chan SM, Ou XL, Sun WH, Zhu XB. Prevalence of and risk factors for fatty liver in Meishan community, Nanjing. Shijie Huaren Xiaohua Zazhi 2016; 24:420-425. [DOI: 10.11569/wcjd.v24.i3.420] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
AIM: To investigate the prevalence of and risk factors for fatty liver (FL) in Meishan community, Nanjing and its relationship with other components of the metabolic syndrome.
METHODS: A retrospective study was performed to analyze the prevalence of and risk factors for FL in 25897 residents in Meishan community, Nanjing who participated in health examination at the Shanghai Meishan Hospital. Variables for the analysis included gender, age, body mass index (BMI), laboratory tests and abdominal ultrasound examination. FL status and its relationship with other components of the metabolic syndrome were analyzed.
RESULTS: The total prevalence rate of fatty liver was 29.81%, and the prevalence between age groups was statistically significant (P < 0.05). The prevalence of fatty liver was significantly associated with age in the female group (P < 0.05), but not in the male group (P > 0.05). The prevalence of fatty liver in the 41-50 age group was significantly higher in males than in females (P < 0.05). Logistic multivariate regression analysis indicated that the prevalence of FL was correlated to BMI, systolic blood pressure, red blood cell count, platelet, blood glucose, ALT, triglyceride, and cholesterol.
CONCLUSION: The prevalence of FL in Meishan community, Nanjing is higher and related to multiple metabolic factors. Bad living habits need to be improved in patients with fatty liver and positive interventions should be taken to prevent and treat fatty liver.
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Ming J, Xu S, Gao B, Liu G, Ji Y, Yang F, Jia Y, Fang Y, Ji Q. Non-alcoholic fatty liver disease predicts type 2 diabetes mellitus, but not prediabetes, in Xi'an, China: a five-year cohort study. Liver Int 2015; 35:2401-7. [PMID: 25879672 DOI: 10.1111/liv.12851] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/10/2015] [Accepted: 04/11/2015] [Indexed: 12/12/2022]
Abstract
BACKGROUND & AIMS Emerging studies have focused the association between non-alcoholic fatty liver disease (NAFLD) and the risk of type 2 diabetes mellitus (T2DM) but the results were inconsistent. In addition, few studies have put focus on the association between NAFLD and the risk of prediabetes. We aimed to investigate whether NAFLD diagnosed by ultrasonography could predict the risk of future T2DM and prediabetes in Chinese population. METHODS The population-based cohort study held in Xi'an, Northwestern China, was based on China National Diabetes and Metabolic Disorders Survey. During a follow-up of 5 years, 508 healthy subjects were included as study sample. NAFLD was determined by abdominal ultrasonography. T2DM and prediabetes were diagnosed based on oral glucose tolerance test. RESULTS Of 508 subjects, 97 (19.1%) were diagnosed as NAFLD and 411 (80.9%) were as non-NAFLD; 20 (3.9%) developed diabetes and 85 (16.7%) developed prediabetes during follow-up. The incidence of diabetes and prediabetes in the NAFLD group was 20.6 and 51.6 per 1000 person-years, respectively, whereas that in non-NAFLD group was 4.9 and 29.2 per 1000 person-years respectively. Cox proportional hazard regression showed that the multivariable-adjusted relative risk (RR) of T2DM and prediabetes in the NAFLD group was 4.462 [95% confidence interval (CI): 1.855-10.734, P < 0.001] and 1.642 (95% CI: 0.965-2.793, P = 0.067), respectively, compared with non-NAFLD group. CONCLUSIONS Non-alcoholic fatty liver disease was a significant predictor for future diabetes, but not for prediabetes, in Xi'an, China. More cohort studies are needed to confirm our findings.
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Affiliation(s)
- Jie Ming
- Department of Endocrinology, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Shaoyong Xu
- Department of Endocrinology, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Bin Gao
- Department of Endocrinology, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Guocai Liu
- Department of Endocrinology, Xijing Hospital, Fourth Military Medical University, Xi'an, China.,Department of Infectious Diseases, 273 Hospital of PLA, Kuele, China
| | - Yufei Ji
- Department of Endocrinology, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Fan Yang
- Department of Ultrasound, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Yunan Jia
- Department of Internal Medicine, Avic Xi'an Aero-engine (Group) Hospital, Xi'an, China
| | - Yujie Fang
- Department of Endocrinology, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Qiuhe Ji
- Department of Endocrinology, Xijing Hospital, Fourth Military Medical University, Xi'an, China
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159
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Liver Fat Content Is Associated with Elevated Serum Uric Acid in the Chinese Middle-Aged and Elderly Populations: Shanghai Changfeng Study. PLoS One 2015; 10:e0140379. [PMID: 26473493 PMCID: PMC4608581 DOI: 10.1371/journal.pone.0140379] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2015] [Accepted: 09/24/2015] [Indexed: 01/11/2023] Open
Abstract
Background and Aims Although many studies have indicated a relationship between nonalcoholic fatty liver disease (NAFLD) and hyperuricemia, a few studies specifically examining the effects of the severity of liver fat content (LFC) on serum uric acid (SUA) and the presence of hyperuricemia because of the limitation of the examination methods for NAFLD. In this study, we investigate the relationship between the NAFLD and SUA levels in the Chinese population using standardized quantitative ultrasound. Methods A community-based study was conducted from May 2010 to December 2012. A total of 4,305 people aged 45 years and above without excessive drinking were enrolled. A standard interview and anthropometric and laboratory blood parameters were collected for each person. The standardized ultrasound hepatic/renal ratio and hepatic attenuation rate was used to quantify LFC. Results The prevalence of NAFLD and hyperuricemia was 33.1% and 17.1%, respectively. A total of 23.5% of the NAFLD subjects had hyperuricemia, and their SUA was higher than that of non-NAFLD subjects (327.2±76.8 vs 301.9±77.4 μmol/L, P<0.001). The LFC was positively correlated with SUA (r = 0.130, P<0.001) and an independent factor for SUA (standardized β = 0.054, P<0.001). The OR for the presence of hypreuricemia was 1.175 (95% CI 1.048–1.318; P<0.001) with a 1 SD increase in the log LFC. LFC greater than 10% was related to elevated SUA and an increased presence of hyperuricemia. Conclusions LFC accumulation was associated with an increase in the prevalence of hyperuricemia and elevated SUA in our community-based population. LFC greater than 10% is related to the risk for hyperuricemia.
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160
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Effects of Soothing Liver and Invigorating Spleen Recipes on the IKKβ-NF-κB Signaling Pathway in Kupffer Cells of Nonalcoholic Steatohepatitis Rats. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2015; 2015:687690. [PMID: 26504479 PMCID: PMC4609424 DOI: 10.1155/2015/687690] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/16/2015] [Revised: 05/19/2015] [Accepted: 05/31/2015] [Indexed: 12/24/2022]
Abstract
This study investigates the effect of soothing liver and invigorating spleen recipes on steatohepatitis examining the IKKβ-NF-κB signaling pathway in KCs of NASH rats. SD male rats were randomly divided into 8 groups, and the NASH model was induced by a high-fat diet (HFD). After 26 weeks, liver tissue was examined in H&E stained sections and liver function was monitored biochemically. KCs were isolated by Seglen's method, with some modifications. The mRNA and protein expression of the IKKβ-NF-κB signaling pathway components was examined by quantitative PCR and Western blotting. The results show that the high-fat diet induced NASH in the rats, and the soothing liver recipe and invigorating spleen recipe decreased the levels of TNF-α, IL-1, and IL-6 in KCs, as well as inhibiting the mRNA and protein expression of the IKKβ-NF-κB signaling pathway components. In conclusion, the experiment indicated the importance of the IKKβ-NF-κB signaling pathway in KCs for the anti-inflammatory effects of the soothing liver and invigorating spleen recipes.
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You SC, Kim KJ, Kim SU, Kim BK, Park JY, Kim DY, Ahn SH, Han KH. Hepatic fibrosis assessed using transient elastography independently associated with coronary artery calcification. J Gastroenterol Hepatol 2015; 30:1536-42. [PMID: 25973647 DOI: 10.1111/jgh.12992] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 04/13/2015] [Indexed: 12/14/2022]
Abstract
BACKGROUND AND AIM Non-alcoholic fatty liver disease (NAFLD) has a close relationship with coronary atherosclerosis. We investigated the association between coronary atherosclerosis and liver fibrosis, represented as coronary artery calcification (CAC) score, and live stiffness (LS) value assessed using transient elastography (TE), respectively, in patients with NAFLD. METHODS Between January 2013 and March 2014, a total of 285 asymptomatic subjects without chronic liver and ischemic heart diseases who underwent comprehensive medical health check-up were recruited. NAFLD was defined as controlled attenuation parameter (CAP) ≥ 250 dB/m on TE. RESULTS The median age of the study population (men 161 and women 124) was 56 (interquartile [IQR], 50-63) years. Of these, 142 (49.8%) subjects had NAFLD. Among subjects with NAFLD, CAC score was independently correlated with the male gender (β = 0.230; P = 0.010), elevated erythrocyte sedimentation rate (β = 0.220; P = 0.019), reduced estimated glomerular filtration rate (β=-0.220; P = 0.004), increased left ventricular mass index (β = 0.226; P = 0.027), and higher LS values (β = 0.274; P < 0.001). In addition, alanine aminotransferase level (β = 0.214, P = 0.012) and CAC score (β = 0.311; P = 0.001) are the only independent factors associated with LS values in subjects with NAFLD. CONCLUSIONS Higher CAC score was independently correlated with LS values in subjects with NAFLD. However, it should be further investigated whether TE can be incorporated into a screening tool to identify the high-risk population for coronary artery disease.
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Affiliation(s)
- Seng Chan You
- Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Korea
| | - Kwang Joon Kim
- Severance Executive Healthcare Clinic, Yonsei University Health System, Seoul, Korea.,Severance Check-up Severance Hospital, Yonsei University Health System, Seoul, Korea
| | - Seung Up Kim
- Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Korea.,Institute of Gastroenterology, Yonsei University College of Medicine, Seoul, Korea
| | - Beom Kyung Kim
- Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Korea.,Institute of Gastroenterology, Yonsei University College of Medicine, Seoul, Korea
| | - Jun Yong Park
- Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Korea.,Institute of Gastroenterology, Yonsei University College of Medicine, Seoul, Korea
| | - Do Young Kim
- Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Korea.,Institute of Gastroenterology, Yonsei University College of Medicine, Seoul, Korea
| | - Sang Hoon Ahn
- Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Korea.,Institute of Gastroenterology, Yonsei University College of Medicine, Seoul, Korea
| | - Kwang-Hyub Han
- Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Korea.,Institute of Gastroenterology, Yonsei University College of Medicine, Seoul, Korea
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Greater serum carotenoid levels associated with lower prevalence of nonalcoholic fatty liver disease in Chinese adults. Sci Rep 2015; 5:12951. [PMID: 26256414 PMCID: PMC4530335 DOI: 10.1038/srep12951] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2015] [Accepted: 07/14/2015] [Indexed: 02/07/2023] Open
Abstract
Previous studies have suggested that serum carotenoids may be inversely associated with liver injury, but limited data are available from population-based studies. We examined the relationship between serum carotenoid levels and the prevalence of nonalcoholic fatty liver disease (NAFLD) in Chinese adults. A total of 2935 participants aged 40–75 years were involved in this community-based cross-sectional study. General information, lifestyle factors, serum levels of carotenoid and the presence and degree of NAFLD were determined. After adjusting for potential covariates, we observed a dose-dependent inverse association between NAFLD risk and each individual serum carotenoid and total carotenoids (all p-values < 0.001). The ORs of NAFLD for the highest (vs. lowest) quartile were 0.44 (95% CI 0.35, 0.56) for α-carotene, 0.32 (95% CI 0.25, 0.41) for β-carotene, 0.62 (95% CI 0.49, 0.79) for β-cryptoxanthin, 0.54 (95% CI 0.42, 0.68) for lycopene, 0.56 (95% CI 0.44, 0.72) for lutein + zeaxanthin and 0.41 (95% CI 0.32, 0.53) for total carotenoids. Higher levels of α-carotene, β-carotene, lutein + zeaxanthin and total carotenoids were significantly associated with a decrease in the degree of NAFLD (p-trend: < 0.001 to 0.003). Serum carotenoids are inversely associated with prevalence of NAFLD in middle aged and elderly Chinese.
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Bhala N, George J. The Burden of Non-alcoholic Fatty Liver Disease (NAFLD) in the Asia Pacific Region. ACTA ACUST UNITED AC 2015. [DOI: 10.1007/s11901-015-0264-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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164
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Zhu JZ, Zhou QY, Wang YM, Dai YN, Zhu J, Yu CH, Li YM. Prevalence of fatty liver disease and the economy in China: A systematic review. World J Gastroenterol 2015; 21:5695-5706. [PMID: 25987797 PMCID: PMC4427696 DOI: 10.3748/wjg.v21.i18.5695] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/17/2014] [Revised: 01/13/2015] [Accepted: 02/11/2015] [Indexed: 02/06/2023] Open
Abstract
AIM: To investigate the relationship between the economy and the adult prevalence of fatty liver disease (FLD) in mainland China.
METHODS: Literature searches on the PubMed and Chinese National Knowledge Infrastructure databases were performed to identify eligible studies published before July 2014. Records were limited to cross-sectional surveys or baseline surveys of longitudinal studies that reported the adult prevalence of FLD and recruited subjects from the general population or community. The gross domestic product (GDP) per capita was chosen to assess the economic status. Multiple linear regression and Loess regression were chosen to fit the data and calculate the 95%CIs. Fitting and overfitting of the models were considered in choosing the appropriate models.
RESULTS: There were 27 population-based surveys from 26 articles included in this study. The pooled mean prevalence of FLD in China was 16.73% (95%CI: 13.92%-19.53%). The prevalence of FLD was correlated with the GDP per capita and survey years in the country (adjusted R2 = 0.8736, PGDP per capita = 0.00426, Pyears = 0.0000394), as well as in coastal areas (R2 = 0.9196, PGDP per capita = 0.00241, Pyears = 0.00281). Furthermore, males [19.28% (95%CI: 15.68%-22.88%)] presented a higher prevalence than females [14.1% (95%CI: 11.42%-16.61%), P = 0.0071], especially in coastal areas [21.82 (95%CI: 17.94%-25.71%) vs 17.01% (95%CI: 14.30%-19.89%), P = 0.0157]. Finally, the prevalence was predicted to reach 20.21% in 2020, increasing at a rate of 0.594% per year.
CONCLUSION: This study reveals a correlation between the economy and the prevalence of FLD in mainland China.
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Zhang T, Zhang C, Zhang Y, Tang F, Li H, Zhang Q, Lin H, Wu S, Liu Y, Xue F. Metabolic syndrome and its components as predictors of nonalcoholic fatty liver disease in a northern urban Han Chinese population: a prospective cohort study. Atherosclerosis 2015; 240:144-8. [PMID: 25785362 DOI: 10.1016/j.atherosclerosis.2015.02.049] [Citation(s) in RCA: 48] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/31/2014] [Revised: 01/28/2015] [Accepted: 02/23/2015] [Indexed: 12/16/2022]
Abstract
OBJECTIVES To explore the longitudinal effect of metabolic syndrome (MetS) and its components on the development of non-alcoholic fatty liver disease (NAFLD) and to evaluate the significance of MetS and its components as early markers of NAFLD risk in a northern urban Han Chinese population. MATERIALS AND METHODS A total of 15,791 cohort members without NAFLD at baseline were included in the current study between 2005 and 2011. The baseline characteristics of the cohort were compared by MetS status at baseline and NAFLD status after follow-up. Cox proportional hazards models were used to estimate the unadjusted or adjusted hazard ratios (HRs) for development of NAFLD among individuals with MetS compared with individuals without MetS at baseline. RESULTS During 51,652 person-years of follow-up, 3913 (24.78%) new cases of NAFLD occurred between 2005 and 2011. In the unadjusted model, the HR (95% confidence interval [CI]) for NAFLD was 2.51 (2.30, 2.73). After adjusting for gender, age, diet, smoking status, and regular exercise, the HR was 1.94 (1.78, 2.13). Gender differences were observed, with adjusted HRs (95% CIs) of 1.89 (1.71, 2.09) and 1.72 (1.43, 2.07) among males and females, respectively. Compared with individuals without MetS components, the HRs were 1.92 (1.76, 2.09), 2.64 (2.40, 2.90) and 3.51 (3.15, 3.91) for individuals with one, two, or three or more MetS components, respectively. Moreover, participants with obesity or hyperlipidemia had a higher risk of NAFLD than patients with hypertension or hyperglycemia, with HRs of 2.03 (1.83, 2.25) for obesity, 1.94 (1.72, 2.19) for hyperlipidemia, and 3.01 (2.68, 3.37) for these factors in combination. CONCLUSION The present study indicates that MetS and its components independently predict the risk of NAFLD in a northern urban Han Chinese population and suggests that people with MetS or its component should initiate lifestyle changes to prevent the development of NAFLD.
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Affiliation(s)
- Tao Zhang
- Department of Epidemiology and Biostatistics, School of Public Health, Shandong University, PO Box 100, Jinan 250012, China
| | - Chengqi Zhang
- Health Management Center, Shandong Provincial QianFoShan Hospital, Jinan 250014, China
| | - Yongyuan Zhang
- Medical Department, Qilu Hospital of Shandong University, Jinan 250012, China
| | - Fang Tang
- Health Management Center, Shandong Provincial QianFoShan Hospital, Jinan 250014, China
| | - Hongkai Li
- Department of Epidemiology and Biostatistics, School of Public Health, Shandong University, PO Box 100, Jinan 250012, China
| | - Qian Zhang
- Department of Epidemiology and Biostatistics, School of Public Health, Shandong University, PO Box 100, Jinan 250012, China
| | - Haiyan Lin
- Center for Health Management, Provincial Hospital Affiliated to Shandong University, Jinan 250021, China
| | - Shuo Wu
- Department of Epidemiology and Biostatistics, School of Public Health, Shandong University, PO Box 100, Jinan 250012, China
| | - Yanxun Liu
- Department of Epidemiology and Biostatistics, School of Public Health, Shandong University, PO Box 100, Jinan 250012, China
| | - Fuzhong Xue
- Department of Epidemiology and Biostatistics, School of Public Health, Shandong University, PO Box 100, Jinan 250012, China.
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166
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Xie W, Zhang S, Lei F, Ouyang X, Du L. Ananas comosus L. Leaf Phenols and p-Coumaric Acid Regulate Liver Fat Metabolism by Upregulating CPT-1 Expression. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE : ECAM 2014; 2014:903258. [PMID: 25197313 PMCID: PMC4145745 DOI: 10.1155/2014/903258] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/15/2014] [Revised: 07/11/2014] [Accepted: 07/21/2014] [Indexed: 12/16/2022]
Abstract
In this study, we aimed to investigate the effect and action mechanisms of pineapple leaf phenols (PLPs) on liver fat metabolism in high-fat diet-fed mice. Results show that PLP significantly reduced abdominal fat and liver lipid accumulation in high-fat diet-fed mice. The effects of PLP were comparable with those of FB. Furthermore, at the protein level, PLP upregulated the expression of carnitine palmitoyltransferase 1 (CPT-1), whereas FB had no effects on CPT-1 compared with the HFD controls. Regarding mRNA expression, PLP mainly promoted the expression of CPT-1, PGC1a, UCP-1, and AMPK in the mitochondria, whereas FB mostly enhanced the expression of Ech1, Acox1, Acaa1, and Ehhadh in peroxisomes. PLP seemed to enhance fat metabolism in the mitochondria, whereas FB mainly exerted the effect in peroxisomes. In addition, p-coumaric acid (CA), one of the main components from PLP, significantly inhibited fat accumulation in oleic acid-induced HepG2 cells. CA also significantly upregulated CPT-1 mRNA and protein expressions in HepG2 cells. We, firstly, found that PLP enhanced liver fat metabolism by upregulating CPT-1 expression in the mitochondria and might be promising in treatment of fatty liver diseases as alternative natural products. CA may be one of the active components of PLP.
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Affiliation(s)
- Weidong Xie
- Division of Life Science & Health, Graduate School at Shenzhen, Tsinghua University, Shenzhen 518055, China
| | - Shaobo Zhang
- Zhu Jiang Hospital, Southern Medical University, Guangzhou 510282, China
| | - Fan Lei
- Protein Science Laboratory of the Ministry of Education, Laboratory of Pharmaceutical Science, School of Life Science, School of Medicine, Tsinghua University, Beijing 100084, China
| | - Xiaoxi Ouyang
- Division of Life Science & Health, Graduate School at Shenzhen, Tsinghua University, Shenzhen 518055, China
| | - Lijun Du
- Protein Science Laboratory of the Ministry of Education, Laboratory of Pharmaceutical Science, School of Life Science, School of Medicine, Tsinghua University, Beijing 100084, China
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167
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Zhang J, Zhao Y, Xu C, Hong Y, Lu H, Wu J, Chen Y. Association between serum free fatty acid levels and nonalcoholic fatty liver disease: a cross-sectional study. Sci Rep 2014; 4:5832. [PMID: 25060337 PMCID: PMC5376058 DOI: 10.1038/srep05832] [Citation(s) in RCA: 117] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2014] [Accepted: 07/07/2014] [Indexed: 02/06/2023] Open
Abstract
High serum free fatty acid (FFA) levels are associated with metabolic syndrome (MS). This study aimed to assess the association of fasting serum FFAs with nonalcoholic fatty liver disease (NAFLD) in a Chinese population. A total of 840 subjects fulfilled the diagnostic criteria of NAFLD and 331 healthy control participants were enrolled in this cross-sectional study. Fasting serum FFA levels and other clinical and laboratory parameters were measured. NAFLD patients had significantly higher serum FFA levels than controls (P < 0.001). Serum FFA levels were significantly and positively correlated with parameters of MS, inflammation indexes, and markers of hepatocellular damage. Elevated serum FFA levels were found in NAFLD subjects with individual components of MS (obesity, hypertriglyceridaemia, and hyperglycaemia). Stepwise regression showed that serum FFA levels were an independent factor predicting advanced fibrosis (FIB-4 ≥ 1.3) in NAFLD patients. Serum FFA levels correlated with NAFLD and could be used as an indicator for predicting advanced fibrosis in NAFLD patients.
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Affiliation(s)
- Juanwen Zhang
- Department of Laboratory Medicine, The First Affiliated Hospital, College of Medicine, Zhejiang University, 79 Qingchun Road, Hangzhou 310003, China
- These authors contributed equally to this work
| | - Ying Zhao
- Department of Laboratory Medicine, The First Affiliated Hospital, College of Medicine, Zhejiang University, 79 Qingchun Road, Hangzhou 310003, China
- These authors contributed equally to this work
| | - Chengfu Xu
- Department of Gastroenterology, The First Affiliated Hospital, College of Medicine, Zhejiang University, 79 Qingchun Road, Hangzhou 310003, China
| | - Yani Hong
- Department of Laboratory Medicine, The First Affiliated Hospital, College of Medicine, Zhejiang University, 79 Qingchun Road, Hangzhou 310003, China
| | - Huanle Lu
- Department of Laboratory Medicine, The First Affiliated Hospital, College of Medicine, Zhejiang University, 79 Qingchun Road, Hangzhou 310003, China
| | - Jianping Wu
- Department of Laboratory Medicine, The First Affiliated Hospital, College of Medicine, Zhejiang University, 79 Qingchun Road, Hangzhou 310003, China
| | - Yu Chen
- Department of Laboratory Medicine, The First Affiliated Hospital, College of Medicine, Zhejiang University, 79 Qingchun Road, Hangzhou 310003, China
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Tsuei J, Chau T, Mills D, Wan YJY. Bile acid dysregulation, gut dysbiosis, and gastrointestinal cancer. Exp Biol Med (Maywood) 2014; 239:1489-504. [PMID: 24951470 DOI: 10.1177/1535370214538743] [Citation(s) in RCA: 71] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Because of increasingly widespread sedentary lifestyles and diets high in fat and sugar, the global diabetes and obesity epidemic continues to grow unabated. A substantial body of evidence has been accumulated which associates diabetes and obesity to dramatically higher risk of cancer development, particularly in the liver and gastrointestinal tract. Additionally, diabetic and obese individuals have been shown to suffer from dysregulation of bile acid (BA) homeostasis and dysbiosis of the intestinal microbiome. Abnormally elevated levels of cytotoxic secondary BAs and a pro-inflammatory shift in gut microbial profile have individually been linked to numerous enterohepatic diseases including cancer. However, recent findings have implicated a detrimental interplay between BA dysregulation and intestinal dysbiosis that promotes carcinogenesis along the gut-liver axis. This review seeks to examine the currently investigated interactions between the regulation of BA metabolism and activity of the intestinal microbiota and how these interactions can drive cancer formation in the context of diabesity. The precarcinogenic effects of BA dysregulation and gut dysbiosis including excessive inflammation, heightened oxidative DNA damage, and increased cell proliferation are discussed. Furthermore, by focusing on the mediatory roles of BA nuclear receptor farnesoid x receptor, ileal transporter apical sodium dependent BA transporter, and G-coupled protein receptor TGR5, this review attempts to connect BA dysregulation, gut dysbiosis, and enterohepatic carcinogenesis at a mechanistic level. A better understanding of the intricate interplay between BA homeostasis and gut microbiome can yield novel avenues to combat the impending rise in diabesity-related cancers.
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Affiliation(s)
- Jessica Tsuei
- Department of Pathology and Laboratory Medicine, University of California at Davis Medical Center, Sacramento, CA 95831, USA
| | - Thinh Chau
- Department of Pathology and Laboratory Medicine, University of California at Davis Medical Center, Sacramento, CA 95831, USA
| | - David Mills
- Department of Food Science and Technology, Department of Viticulture and Enology, Foods for Health Institute, University of California, Davis, CA 95616, USA
| | - Yu-Jui Yvonne Wan
- Department of Pathology and Laboratory Medicine, University of California at Davis Medical Center, Sacramento, CA 95831, USA
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169
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Zhang T, Zhang Y, Zhang C, Tang F, Li H, Zhang Q, Lin H, Wu S, Liu Y, Xue F. Prediction of metabolic syndrome by non-alcoholic fatty liver disease in northern urban Han Chinese population: a prospective cohort study. PLoS One 2014; 9:e96651. [PMID: 24801211 PMCID: PMC4011868 DOI: 10.1371/journal.pone.0096651] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2014] [Accepted: 04/09/2014] [Indexed: 02/06/2023] Open
Abstract
Objectives To explore the relationship between non-alcoholic fatty liver disease (NAFLD) and the metabolic syndrome (MetS), and evaluate the value of NAFLD as a marker for predicting the risk of MetS in a large scale prospective cohort from northern urban Han Chinese population. Materials and Methods A total of 17,920 MetS-free at baseline cohort members was included in the current study between 2005 and 2011. The baseline characteristics of the cohort were compared by NAFLD status at baseline, MetS status after follow-up. Cox proportional hazards models were used to estimate the unadjusted or adjusted hazard ratios (HRs) for NAFLD at baseline predicting the risk of MetS. Results 2,183 (12.18%) new cases of MetS occurred between 2005 and 2011. In unadjusted model, HRs (95% CIs) for NAFLD predicting MetS was 3.65 (3.35, 3.97). After adjusting the confounding factors of age, gender, the metabolic factors, smoke and exercise, the HRs (95% CIs) was 1.70 (1.55, 1.87). Gender difference was observed, adjusted HRs (95% CIs) of NAFLD for predicting MetS were 2.06(1.72, 2.46) and 1.55(1.39, 1.72) in female and male population, respectively. Moreover, 163 participants developed MetS among participants without any MetS component at baseline, and its adjusted HRs was still significant, 1.87 (1.12, 3.13). Conclusion The present study indicates that NAFLD is an independent risk factor for predicting the risk of MetS in northern urban Han Chinese population, and the people with NAFLD should initiate weight and dietary control to prevent the occurrence of MetS.
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Affiliation(s)
- Tao Zhang
- Department of Epidemiology and Biostatistics, School of Public Health, Shandong University, Jinan, China
| | - Yongyuan Zhang
- Medical Department,Qilu Hospital of Shandong University, Jinan, China
| | - Chengqi Zhang
- Health Management Center, Shandong Provincial QianFoShan Hospital, Jinan, China
| | - Fang Tang
- Health Management Center, Shandong Provincial QianFoShan Hospital, Jinan, China
| | - Hongkai Li
- Department of Epidemiology and Biostatistics, School of Public Health, Shandong University, Jinan, China
| | - Qian Zhang
- Department of Epidemiology and Biostatistics, School of Public Health, Shandong University, Jinan, China
| | - Haiyan Lin
- Center for Health Management, Provincial Hospital affiliated to Shandong University, Jinan, China
| | - Shuo Wu
- Department of Epidemiology and Biostatistics, School of Public Health, Shandong University, Jinan, China
| | - Yanxun Liu
- Department of Epidemiology and Biostatistics, School of Public Health, Shandong University, Jinan, China
| | - Fuzhong Xue
- Department of Epidemiology and Biostatistics, School of Public Health, Shandong University, Jinan, China
- * E-mail:
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170
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Liang J, Wang Y, Li H, Liu X, Qiu Q, Qi L. Combination of diabetes risk factors and hepatic steatosis in Chinese: the Cardiometabolic Risk in Chinese (CRC) Study. PLoS One 2014; 9:e90101. [PMID: 24595017 PMCID: PMC3940820 DOI: 10.1371/journal.pone.0090101] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2013] [Accepted: 01/31/2014] [Indexed: 12/20/2022] Open
Abstract
Aims Hepatic steatosis has been related to insulin resistance and increased diabetes risk. We assessed whether combination of diabetes risk factors, evaluated by the Finnish Diabetes Risk Score, was associated with risk of hepatic steatosis in an apparently healthy Chinese population. Research Design and Methods The study samples were from a community-based health examination survey in central China. In total 1,780 men and women (18–64 y) were included in the final analyses. Hepatic steatosis was diagnosed by ultrasonography. We created combination of diabetes risk factors score on basis of age, Body Mass Index, waist circumference, physical activity at least 4 h a week, daily consumption of fruits, berries or vegetables, history of antihypertensive drug treatment, history of high blood glucose. The total risk score is a simple sum of the individual weights, and values range from 0 to 20. Results Hepatic steatosis was present 18% in the total population. In multivariate models, the odds ratios of hepatic steatosis were 1.20 (95%CI 1.15–1.25) in men and 1.25 (95%CI 1.14–1.37) in women by each unit increase in the combination of diabetes risk factors score, after adjustment for blood pressure, liver enzymes, plasma lipids, and fasting glucose. The area under the receiver operating characteristic curve for hepatic steatosis was 0.78 (95%CI 0.76–0.80), 0.76 in men (95%CI 0.74–0.78) and 0.83 (95%CI 0.79–0.87) in women. Conclusions Our data suggest that combination of major diabetes risk factors was significantly related to risk of hepatic steatosis in Chinese adults.
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Affiliation(s)
- Jun Liang
- Department of Endocrinology, Xuzhou Central Hospital, Xuzhou Clinical School of Xuzhou Medical College, Xuzhou Institute of Medical Sciences, Xuzhou Institute of Diabetes, Affiliated Hospital of Southeast University, Xuzhou, Jiangsu, China
- * E-mail: (LQ); (JL)
| | - Yu Wang
- Xuzhou Medical College, Xuzhou, Jiangsu, China
| | - Hongyan Li
- Xuzhou Medical College, Xuzhou, Jiangsu, China
| | - Xuekui Liu
- Department of Endocrinology, Xuzhou Central Hospital, Xuzhou Clinical School of Xuzhou Medical College, Xuzhou Institute of Medical Sciences, Xuzhou Institute of Diabetes, Affiliated Hospital of Southeast University, Xuzhou, Jiangsu, China
| | - Qinqin Qiu
- Xuzhou Medical College, Xuzhou, Jiangsu, China
| | - Lu Qi
- Department of Nutrition, Harvard School of Public Health, Boston, Massachusetts, United States of America
- Channing Laboratory, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts, United States of America
- * E-mail: (LQ); (JL)
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