Aged Citrus Peel (Chenpi) Prevents Acetaminophen-Induced Hepatotoxicity by Epigenetically Regulating Nrf2 Pathway

ASIA unversity > 醫學暨健康學院 > 食品營養與保健生技學系 > 期刊論文 > Item 310904400/112831

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题名:	Aged Citrus Peel (Chenpi) Prevents Acetaminophen-Induced Hepatotoxicity by Epigenetically Regulating Nrf2 Pathway
作者:	ZH, Lin;ZH, Lin
贡献者:	食品營養與保健生技學系
关键词:	Acetaminophen;Aged Citrus Peel;Epigenetics;Hepatotoxicity;Liver;Nrf2.
日期:	2019-10
上传时间:	2020-08-31 07:10:29 (UTC+0)
出版者:	亞洲大學
摘要:	Excessive consumption of analgesic drug acetaminophen (APAP) can cause severe oxidative stress-mediated liver injury. Here, we investigated the protective effect and mechanism of aged citrus peel (Chenpi, CP), a Chinese herb usually used in foods in Asia, against APAP-induced hepatotoxicity. CP water (CP-WE), ethanolic (CP-EE), and water extraction residue ethanolic (CP-WREE) extracts were prepared. We found that CP-WREE contained higher content of bioactive flavonoids, including narirutin, nobiletin, and tangeretin, and more effectively enhanced the Nrf2 pathway in ARE-luciferase reporter gene transfected human HepG2-C8 cells. In mouse AML-12 hepatocytes, CP-WREE minimized APAP-induced damage and lipid peroxidation and increased mRNA and protein expressions of Nrf2 and its downstream defense enzymes (HO-1, NQO1, and UGT1A). CP-WREE also downregulated HDACs and DNMTs, upregulated KDMs, and increased the unmethylated Nrf2 promoter level. Additionally, CP-WREE blocked in vitro DNA methyltransferase activity. Taken together, CP-WREE might attenuate oxidative stress-induced hepatotoxicity through epigenetically regulating Nrf2-mediated cellular defense system.
關聯:	AMERICAN JOURNAL OF CHINESE MEDICINE
显示于类别:	[食品營養與保健生技學系] 期刊論文

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