化学
硫代乙酰胺
氧化应激
肝保护
谷胱甘肽过氧化物酶
超氧化物歧化酶
Trolox当量抗氧化能力
抗氧化剂
谷胱甘肽
药理学
过氧化氢酶
特罗洛克
生物化学
内分泌学
医学
酶
抗氧化能力
作者
Po‐Ju Chen,Chien Chao Chiu,Jung‐Kai Tseng,Kuo Chung Yang,Yi‐Chen Chen
标识
DOI:10.1016/j.jff.2015.01.026
摘要
D-Glucuronolactone (C6H8O6, lactone), naturally found in plant gums, is commercially acclaimed for its hepatoprotective effects. This study was to investigate whether lactone can attenuate thioacetamide (TAA)-induced liver fibrosis in a rat model. Results showed that lactone supplementation (75 mg kg−1 bw glucuronolactone) alleviated AST values in TAA-intraperitoneally-injected rats (100 mg kg−1 bw TAA) and increased antioxidant capacity of liver via elevations of antioxidant enzymes activities [superoxide dismutase (SOD) and glutathione peroxidase (GPx)], glutathione (GSH) and trolox equivalent antioxidative capacity (TEAC) levels (p <0.05). Down-regulated (p <0.05) expression of inflammation including interleukin-6 (IL-6), nuclear factor-kappa B (NF-κB), activator protein 1 (AP-1), krüppel-like factor 6 (KLF-6), and fibrosis related fibrotic factors, i.e., alpha smooth muscle actin (α-SMA), and collagen alpha1 (I) (COLα1) through lactone supplementation underlay the lower collagen contents and less severe liver damage on histopathology observations. Therefore, hepatoprotection of lactone against TAA-induced liver fibrosis can be attributed to the amelioration of oxidative stress and inflammation.
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