Chemosphere · 2021
Blood manganese and nonalcoholic fatty liver disease: A cohort-based case-control study.
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Zhang Di, Wu Shouling, Lan Yanqi, Chen Shuohua, Wang Yanhong, Sun Yuanyuan, Liao Wei, Wang Li
Аннотация
BACKGROUND & AIMS: As both a toxic and essential trace element in humans, limited research focuses on the association between blood manganese (Mn) and nonalcoholic fatty liver disease (NAFLD). We aimed to assess blood Mn concentration and its relationship with NAFLD among adults in Northern China.
METHODS: We conducted a cohort-based case-control study among 1816 patients with NAFLD (970 males and 846 females) and 1111 healthy controls (598 males and 513 females). We used the restricted cubic splines method to investigate the potential non-linear relationship and logistic regression models to analyze the association between blood Mn and NAFLD.
RESULTS: The median (p25, p75) of blood Mn concentration in males was 10.08 (8.42,11.98) μg/L, higher than that in females [9.79 (8.01,12.04)] μg/L, P = 0.011. Compared with the tertile 1 group of Mn in males, the odds ratio (95 % confidence interval) of NAFLD for tertile 2 and tertile 3 group was 0.82 (0.61,1.10) and 0.64 (0.47,0.87), respectively. The reverse correlation was consistent in patients with different fibrosis severity determined by fibrosis-4 score. The protective association was more evident in those with triglycerides ≥1.7 mmol/L [odds ratio (95 % confidence interval) of tertile 3 vs. tertile 1: 0.40 (0.22,0.75)]. We found a non-significant U-shaped relationship between Mn and NAFLD in women.
CONCLUSION: There may exist sex differences for the association between blood Mn and NAFLD. Higher blood Mn may be a potential protective factor for NAFLD in males. The subjects with TG ≥ 1.7 mmol/L would benefit more from higher blood Mn levels.
METHODS: We conducted a cohort-based case-control study among 1816 patients with NAFLD (970 males and 846 females) and 1111 healthy controls (598 males and 513 females). We used the restricted cubic splines method to investigate the potential non-linear relationship and logistic regression models to analyze the association between blood Mn and NAFLD.
RESULTS: The median (p25, p75) of blood Mn concentration in males was 10.08 (8.42,11.98) μg/L, higher than that in females [9.79 (8.01,12.04)] μg/L, P = 0.011. Compared with the tertile 1 group of Mn in males, the odds ratio (95 % confidence interval) of NAFLD for tertile 2 and tertile 3 group was 0.82 (0.61,1.10) and 0.64 (0.47,0.87), respectively. The reverse correlation was consistent in patients with different fibrosis severity determined by fibrosis-4 score. The protective association was more evident in those with triglycerides ≥1.7 mmol/L [odds ratio (95 % confidence interval) of tertile 3 vs. tertile 1: 0.40 (0.22,0.75)]. We found a non-significant U-shaped relationship between Mn and NAFLD in women.
CONCLUSION: There may exist sex differences for the association between blood Mn and NAFLD. Higher blood Mn may be a potential protective factor for NAFLD in males. The subjects with TG ≥ 1.7 mmol/L would benefit more from higher blood Mn levels.