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Abstract Title:

The effect of baicalein on endoplasmic reticulum stress and autophagy on liver damage.

Abstract Source:

Hum Exp Toxicol. 2021 Mar 29:9603271211003634. Epub 2021 Mar 29. PMID: 33779329

Abstract Author(s):

M C Üstüner, C Tanrikut, D Üstüner, U K Kolaç, ZÖzdemir Köroğlu, D Burukoğlu, E Entok

Article Affiliation:

M C Üstüner

Abstract:

Carbon tetrachloride (CCl) is a toxic chemical that causes liver injury. CCltriggers endoplasmic reticulum (ER) stress and unfolded protein response (UPR). UPR triggers autophagy to deal with the damage. The aim of this study was to investigate the effect of baicalein, derived from, on CCl-induced liver damage concerning ER stress and autophagy. Two groups of Wistar albino rats (n = 7/groups) were treated with 0.2 ml/kg CClfor 10 days with and without baicalein. Histological and transmission electron microscopy (TEM) analysis, autophagy, and ER stress markers measurements were carried out to evaluate the effect of baicalein. Histological examinations showed that baicalein reduced liver damage. TEM analysis indicated that baicalein inhibited ER stress and triggered autophagy. CCl4-induced elevation of C/EBP homologous protein (CHOP), glucose-regulating protein 78 (GRP78), activating transcription factor 4 (ATF4), activating transcription factor 6 (ATF6), inositol requiring enzyme 1 (IRE1), pancreatic ER kinase (PERK), and active/spliced form of X-box-binding protein 1 (XBP1s) ER stress markers were decreased by baicalein. Baicalein also increased the autophagy-related 5 (ATG5), Beclin1, and Microtubule-associated protein 1A/1B-light chain 3-phosphatidylethanolamine-conjugated form (LC3-II) autophagy marker levels. In conclusion, baicalein reduced the CCl-induced liver damage by inhibiting ER stress and the trigger of autophagy.

Study Type : Animal Study

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