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Article Publish Status: FREE
Abstract Title:

Berberine alleviates lipid metabolism disorders via inhibition of mitochondrial complex I in gut and liver.

Abstract Source:

Int J Biol Sci. 2021 ;17(7):1693-1707. Epub 2021 Apr 12. PMID: 33994854

Abstract Author(s):

Muyu Yu, Miriayi Alimujiang, Lili Hu, Fang Liu, Yuqian Bao, Jun Yin

Article Affiliation:

Muyu Yu

Abstract:

This study is to investigate the relationship between berberine (BBR) and mitochondrial complex I in lipid metabolism. BBR reversed high-fat diet-induced obesity, hepatic steatosis, hyperlipidemia and insulin resistance in mice. Fatty acid consumption,β-oxidation and lipogenesis were attenuated in liver after BBR treatment which may be through reduction in SCD1, FABP1, CD36 and CPT1A. BBR promoted fecal lipid excretion, which may result from the reduction in intestinal CD36 and SCD1. Moreover, BBR inhibited mitochondrial complex I-dependent oxygen consumption and ATP synthesis of liver and gut, but no impact on activities of complex II, III and IV. BBR ameliorated mitochondrial swelling, facilitated mitochondrial fusion, and reduced mtDNA and citrate synthase activity. BBR decreased the abundance and diversity of gut microbiome. However, no change in metabolism of recipient mice was observed after fecal microbiota transplantation from BBR treated mice. In primary hepatocytes, BBR and AMPK activator A769662 normalized oleic acid-induced lipid deposition. Although both the agents activated AMPK, BBR decreased oxygen consumption whereasA769662 increased it. Collectively, these findings indicated that BBR repressed complex I in gut and liver and consequently inhibited lipid metabolism which led to alleviation of obesity and fatty liver. This process was independent of intestinal bacteria.

Study Type : Animal Study
Additional Links
Pharmacological Actions : Hypolipidemic : CK(5358) : AC(1221)

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