Abstract Title:

Melatonin Alleviates Liver Apoptosis in Bile Duct Ligation Young Rats.

Abstract Source:

Int J Mol Sci. 2016;17(8). Epub 2016 Aug 20. PMID: 27556445

Abstract Author(s):

Jiunn-Ming Sheen, Yu-Chieh Chen, Mei-Hsin Hsu, You-Lin Tain, Ying-Hsien Huang, Mao-Meng Tiao, Shih-Wen Li, Li-Tung Huang

Article Affiliation:

Jiunn-Ming Sheen

Abstract:

Bile duct ligation (BDL)-treated rats display cholestasis and liver damages. The potential protective activity of melatonin in young BDL rats in terms of apoptosis, mitochondrial function, and endoplasmic reticulum (ER) homeostasis has not yet been evaluated. Three groups of young male Sprague-Dawley rats were used: one group received laparotomy (Sham), a second group received BDL for two weeks (BDL), and a third group received BDL and intraperitoneal melatonin (100 mg/day) for two weeks (BDL + M). BDL group rats showed liver apoptosis, increased pro-inflamamtory mediators, caspases alterations, anti-apoptotic factors changes, and dysfunction of ER homeostasis. Melatonin effectively reversed apoptosis, mainly through intrinsic pathway and reversed ER stress. In addition, in vitro study showed melatonin exerted its effect mainly through the melatonin 2 receptor (MT2) in HepG2 cells. In conclusion, BDL in young rats caused liver apoptosis. Melatonin rescued the apoptotic changes via the intrinsic pathway, and possibly through the MT2 receptor. Melatonin also reversed ER stress induced by BDL.

Study Type : Animal Study

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