Blood manganese and non-alcoholic fatty liver disease in a high manganese exposure area in China

Abstract Background and aims Manganese (Mn) deficiency and intoxication may affect nonalcoholic fatty liver disease (NAFLD) risk differently. We aimed to explore the association between blood Mn and NAFLD in an area with high Mn exposure in drinking water. Methods We conducted a case–control study a...

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Main Authors: Liping Wu, Yanqi Lan, Ze Yu, Yanhong Wang, Wei Liao, Guoqiang Zhang, Li Wang
Format: Article
Language:English
Published: BMC 2023-11-01
Series:Journal of Health, Population and Nutrition
Subjects:
Online Access:https://doi.org/10.1186/s41043-023-00467-2
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author Liping Wu
Yanqi Lan
Ze Yu
Yanhong Wang
Wei Liao
Guoqiang Zhang
Li Wang
author_facet Liping Wu
Yanqi Lan
Ze Yu
Yanhong Wang
Wei Liao
Guoqiang Zhang
Li Wang
author_sort Liping Wu
collection DOAJ
description Abstract Background and aims Manganese (Mn) deficiency and intoxication may affect nonalcoholic fatty liver disease (NAFLD) risk differently. We aimed to explore the association between blood Mn and NAFLD in an area with high Mn exposure in drinking water. Methods We conducted a case–control study among 1407 patients with NAFLD and 1774 sex- and age-matched healthy controls in a physical examination population in Zhoushan hospital, Zhejiang province in China. We used the restricted cubic splines method to investigate the dose–response relationship. Logistic regression models were applied to determine the risk of NAFLD, and severity of NAFLD. Results The blood Mn concentration was higher in the NAFLD group than in the control group in women (16.1 ± 6.2 μg/L vs. 14.7 ± 6.4 μg/L, P = 0.022) and men (14.5 ± 6.3 μg/L vs. 13.6 ± 6.8 μg/L, P < 0.001). We found an inverted L shape relationship between blood Mn and NAFLD in both women and men. Compared to the lowest quartile, the adjusted odds ratio (OR) and 95% confidence interval (CI) of NAFLD for the highest quartile group was 1.646(1.222,2.217), 1.494(1.082,2.061), and 3.146(1.285,7.701) for the total population, men, and women. The positive relationship was only observed in those with fibrosis-4 score < 1.30 and normal alanine transaminase. Stratified analysis showed an interaction between smoking (P = 0.073), alcohol drinking (P = 0.013), and Mn, with a more prominent effect on the NAFLD in the never-smokers (OR = 2.153, 95% CI 1.408–3.290) and drinkers (OR = 2.596, 95% CI 1.608–4.191). Conclusion Higher blood Mn is associated with an elevated NAFLD risk in the high Mn exposure areas, especially in nonsmokers and drinkers. Further studies are needed to verify this result in the areas with high Mn exposure.
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spelling doaj.art-b5a86601af4a45108b2659a9fccce2e42023-11-12T12:21:21ZengBMCJournal of Health, Population and Nutrition2072-13152023-11-014211910.1186/s41043-023-00467-2Blood manganese and non-alcoholic fatty liver disease in a high manganese exposure area in ChinaLiping Wu0Yanqi Lan1Ze Yu2Yanhong Wang3Wei Liao4Guoqiang Zhang5Li Wang6Department of Hepatobiliary Surgery, Zhoushan Hospital, Wenzhou Medical UniversityDepartment of Epidemiology and Biostatistics, Institute of Basic Medical Sciences Chinese Academy of Medical Sciences, School of Basic Medicine Peking, Union Medical CollegeDepartment of Hepatobiliary Surgery, Zhoushan Hospital, Wenzhou Medical UniversityDepartment of Epidemiology and Biostatistics, Institute of Basic Medical Sciences Chinese Academy of Medical Sciences, School of Basic Medicine Peking, Union Medical CollegeDepartment of Epidemiology and Biostatistics, Institute of Basic Medical Sciences Chinese Academy of Medical Sciences, School of Basic Medicine Peking, Union Medical CollegeDepartment of Hepatobiliary Surgery, Zhoushan Hospital, Wenzhou Medical UniversityDepartment of Epidemiology and Biostatistics, Institute of Basic Medical Sciences Chinese Academy of Medical Sciences, School of Basic Medicine Peking, Union Medical CollegeAbstract Background and aims Manganese (Mn) deficiency and intoxication may affect nonalcoholic fatty liver disease (NAFLD) risk differently. We aimed to explore the association between blood Mn and NAFLD in an area with high Mn exposure in drinking water. Methods We conducted a case–control study among 1407 patients with NAFLD and 1774 sex- and age-matched healthy controls in a physical examination population in Zhoushan hospital, Zhejiang province in China. We used the restricted cubic splines method to investigate the dose–response relationship. Logistic regression models were applied to determine the risk of NAFLD, and severity of NAFLD. Results The blood Mn concentration was higher in the NAFLD group than in the control group in women (16.1 ± 6.2 μg/L vs. 14.7 ± 6.4 μg/L, P = 0.022) and men (14.5 ± 6.3 μg/L vs. 13.6 ± 6.8 μg/L, P < 0.001). We found an inverted L shape relationship between blood Mn and NAFLD in both women and men. Compared to the lowest quartile, the adjusted odds ratio (OR) and 95% confidence interval (CI) of NAFLD for the highest quartile group was 1.646(1.222,2.217), 1.494(1.082,2.061), and 3.146(1.285,7.701) for the total population, men, and women. The positive relationship was only observed in those with fibrosis-4 score < 1.30 and normal alanine transaminase. Stratified analysis showed an interaction between smoking (P = 0.073), alcohol drinking (P = 0.013), and Mn, with a more prominent effect on the NAFLD in the never-smokers (OR = 2.153, 95% CI 1.408–3.290) and drinkers (OR = 2.596, 95% CI 1.608–4.191). Conclusion Higher blood Mn is associated with an elevated NAFLD risk in the high Mn exposure areas, especially in nonsmokers and drinkers. Further studies are needed to verify this result in the areas with high Mn exposure.https://doi.org/10.1186/s41043-023-00467-2NAFLDManganeseCase–control studyHigh manganese exposure area
spellingShingle Liping Wu
Yanqi Lan
Ze Yu
Yanhong Wang
Wei Liao
Guoqiang Zhang
Li Wang
Blood manganese and non-alcoholic fatty liver disease in a high manganese exposure area in China
Journal of Health, Population and Nutrition
NAFLD
Manganese
Case–control study
High manganese exposure area
title Blood manganese and non-alcoholic fatty liver disease in a high manganese exposure area in China
title_full Blood manganese and non-alcoholic fatty liver disease in a high manganese exposure area in China
title_fullStr Blood manganese and non-alcoholic fatty liver disease in a high manganese exposure area in China
title_full_unstemmed Blood manganese and non-alcoholic fatty liver disease in a high manganese exposure area in China
title_short Blood manganese and non-alcoholic fatty liver disease in a high manganese exposure area in China
title_sort blood manganese and non alcoholic fatty liver disease in a high manganese exposure area in china
topic NAFLD
Manganese
Case–control study
High manganese exposure area
url https://doi.org/10.1186/s41043-023-00467-2
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