Protective Effects of Ocimum gratissimum Polyphenol Extract on Carbon Tetrachloride-Induced Liver Fibrosis in Rats

10.4077/CJP.2015.BAD285

Yieng-How Chen；Yung-Wei Chiu；Jyh-Cherng Shyu；Chin-Chiu Tsai；Hsueh-Hui Lee；Chuan-Chen Hung；Jin-Ming Hwang；Jer-Yuh Liu；Wen-Hong Wang

liver fibrosis ； Ocimum gratissimum polyphenol extract

The Chinese Journal of Physiology

58卷1期（2015 / 02 / 01）

55 - 63

英文

Ocimum gratissimum found in tropical regions is a traditional herb commonly which prevents free radical damage and protects liver from oxidative stress and fibrosis. Ocimum gratissimum polyphenol extract (OGPE) was purified by resin tube to 33.24% polyphenol and 8.2% flavonoid, which were threefold higher compared with the pre-purification concentrations. The abstract was used to determine if the antioxidant components in the O. gratissimum extract (OGE) were responsible for protective effects on liver fibrosis. High-performance liquid chromatography analysis revealed that the content levels of catechin, caffeic acid and epicatechin in OGPE also increased three-fold. Male Wistar rats were administered with carbon tetrachloride (CCl4) and varying amounts of OGPE doses [0-12mg/kg body weight (BW)] or OGE dose (40mg/kg BW) for 8 weeks. Results showed that OGPE at 12mg/kg BW, similar to OGE at 40mg/kg BW, maintained the liver weight, significantly ameliorated CCl_4-induced steatosis, and mitigated other pathological changes. OGPE (12mg/kg BW) also maintained the levels of serum alanine aminotransferase and aspartate aminotransferase, as well as the levels of malondialdehyde, catalase and α-smooth muscle actin in liver tissues from CCl_4-induced changes. These findings suggest that antioxidant components in OGPE were the major factors that prevented liver fibrosis. Moreover, higher polyphenol concentrations were necessary for higher effectiveness.

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