期刊
JOURNAL OF MEDICINAL FOOD
卷 11, 期 3, 页码 479-485出版社
MARY ANN LIEBERT, INC
DOI: 10.1089/jmf.2007.0075
关键词
cadmium; Chlorella vulgaris; liver; rats
资金
- Daesang Wellife Co
The biochemical mechanisms of Chlorella vulgaris protection against cadmium (Cd)-induced liver toxicity were investigated in male Sprague-Dawley rats (5 weeks of age, weighing 90-110 g). Forty rats were randomly divided into one control and three groups treated with 10 ppm Cd: one Cd without Chlorella (Cd-0C), one Cd with 5% Chlorella (Cd-5C), and one Cd with 10% Chlorella (Cd-10C) groups. The rats had free access to water and diet for 8 weeks. Body weight gain and relative liver weight were significantly lower in the Cd-0C group than in Cd-5C and Cd-10C groups. Rats in the Cd-0C group had significantly higher hepatic concentrations of Cd and metallothioneins (MTs) than in the Cd-5C or Cd-10C group. The hepatic MT I/II mRNA was expressed in all experimental rats. MT II was more expressed in the Cd-5C and Cd-10C groups than in the Cd-0C group. Morphologically, a higher level of congestion and vacuolation was observed in the livers of the Cd-0C group compared to those of the Cd-5C and Cd-10C groups. Therefore, this study suggests that C. vulgaris has a protective effect against Cd-induced liver damage by reducing Cd accumulation and stimulating the expression of NIT 11 in liver. However, the details of the mechanism of C vulgaris on liver toxicity remains to be clarified by further Studies.
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