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학술저널
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대한약리학회 The Korean Journal of Physiology & Pharmacology The Korean Journal of Physiology & Pharmacology 제23권 제1호
발행연도
2019.1
수록면
21 - 28 (8page)

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Swertiamarin (STM) is an iridoid compound that is present in the Gentianaceae swertia genus. Here we investigated antiapoptotic effects of STM on carbon tetrachloride (CCl4)-induced liver injury and its possible mechanisms. Adult male Sprague Dawley rats were randomly divided into a control group, an STM 200 mg/kg group, a CCl4 group, a CCl4+STM 100 mg/kg group, and a CCl4+STM 200 mg/kg group. Rats in experimental groups were subcutaneously injected with 40% CCl4 twice weekly for 8 weeks. STM (100 and 200 mg/kg per day) was orally given to experimental rats by gavage for 8 consecutive weeks. Hepatocyte apoptosis was determined by TUNEL assay and the expression levels of Bcl-2, Bax, and cleaved caspase-3 proteins were evaluated by western blot analysis. The expression of TGF- 1, collagen I, collagen III, CTGF and fibronectin mRNA were estimated by qRT-PCR. The results showed that STM significantly reduced the number of TUNEL-positive cells compared with the CCl4 group. The levels of Bax and cleaved caspase-3 proteins, and TGF- 1, collagen I, collagen III, CTGF, and fibronectin mRNA were significantly reduced by STM compared with the CCl4 group. In addition, STM markedly abrogated the repression of Bcl-2 by CCl4. STM also attenuated the activation of the PI3K/Akt pathway in the liver. These results suggested that STM ameliorated CCl4-induced hepatocyte apoptosis in rats.

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