Genipin improves lipid metabolism and sperm parameters in obese mice via regulation of miR-132 expression  

作　　者：Li Wangi Ge Chen Shuyao Wu YihuaXul Chenxi Guo Manman Wang Tingming Liang Zhigang Guo Hong-Jie Di Zhigang Hu 

机构地区：[1]Jiangsu Key Laboratory for Molecular and Medical Biotechnology,College of Life Sciences,Nanjing Normal University,Nanjing 210023,China [2]Department of Endocrinology,the Second Affiliated Hospital of Nanjing University of Chinese Medicine,Nanjing210017,China

出　　处：《Acta Biochimica et Biophysica Sinica》2022年第9期1278-1288,共11页生物化学与生物物理学报（英文版）

基　　金：the grants from the National Natural Science Foundation of China(No.32171407);the Development Project of Jiangsu Province TCM Science and Technology(No.YB2020024);the Priority Academic Program Development of Jiangsu Higher Education Institutions.

摘　　要：Obesity has now surpassed malnutrition and infectious diseases as the most significant contributor to health problems worldwide.In particular,obesity is associated with several metabolic disorders,including hyperlipidemia,hepatic steatosis,and subfertility.Genipin(GNP),the aglycone of geniposide,is isolated from the extract of the traditional Chinese medicine Gardenia jasminoides Ellis and has been used in traditional oriental medicine against several inflammation-driven diseases.However,the effect and molecular mechanism of GNP on obesityassociated dyslipidemia and sperm dysfunction still need to be explored.In this study,we detect the effects of GNp on hyperlipidemia,hepatic lipid accumulation and sperm function using a high-fat diet(HFD)-induced obese mouse model.We find that obese mice treated with GNP show an improvement in body weight,serum triglyceride levels,serum hormone levels,serum inflammatory cytokines,hepatic steatosis and sperm function.At the molecular level,HFD/GNP diversely regulates the expression of miR-132 in a tissue-specific manner.miR-132 further targets and regulates the expression of SREBP-1c in liver cells,as well as the expressions of SREBP-1c and StAR in Leydig cells in the testis,thus modifying lipogenesis and steroidogenesis,respectively.Collectively,our data demonstrate that GNP shows a broad effect on the improvement of HFD-induced metabolic disorder and sperm dysfunction in male mice by tissue-specific regulation of miR-132.Our findings reveal the function GNP in ameliorating hepatic lipid metabolism and sperm function and suggest that this compound is a versatile drug to treat metabolic disorders.

关 键 词：metabolic disorder sperm function miR-132 OBESITY GENIPIN 

分 类 号：R589.2[医药卫生—内分泌]