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Nitrite scavenging activity and protective effect of the Puerariae Radix and green tea extract on lead acetate and cadmium-induced liver damage in mice  

Yun, I-Ran (Gyeongam Livestock Promotion Research Institute)
Choi, You-Jeong (Gyeongam Livestock Promotion Research Institute)
Heo, Jung-Ho (Gyeongam Livestock Promotion Research Institute)
Choi, Chul-Yung (International of Korea University)
Seoung, Tae-Jong (International of Korea University)
Kim, Yun-Geun (Sancheong-gun Agricultural technology center)
Kim, Jong-Shu (College of Veterinary Medicine, and institute of animal Science, Gyeongsang National University)
Publication Information
Korean Journal of Veterinary Service / v.33, no.3, 2010 , pp. 275-285 More about this Journal
Abstract
This study was designed to evaluated the nitrite scavenging activity and protective effect of the Puerariae Radix and green tea extract on lead acetate and cadmium-induced liver damage in mice. The quantitative analytical method for major antioxidants, isoflavones, puerarin, catechine and caffeine in galgun (Puerariae Radix) and green tera extract were established by HPLC. Contents of isoflavones, such as daidzin, genistin, daidzein and genistein were 4.23g/100g, 0.13g/100g, 0.07g/100g, and 0.03g/100g, and puerarin contents was 8.99g/100g, respectively. The total catechins and caffeine contents of green tea extract were 49.24g/100g and 6.53g/100g. The nitrite scavenging ability of galgun extract (pH 1.2, 100mg/ml) was 98.07% and it was higher than those of other extracts. It was the highest at the pH 1.2 and more than 64% in 25~100mg green tea extract, and was dependents on pH and concentration of the samples. The hepatoprotective effects of an aqueous extract from the root of gal gun and standard puerarin were evaluated against lead acetate and cadmium-induced liver damage in mice. Galgun extract and standard at a dose of 100mg/kg and 10mg/kg, 50mg/kg were administered orally once daily for successive 5 days and then a lead acetate and cadmium were orally at 3 hrs after the every day administration of galgun. The substantially elevated serum enzymatic activities of alanine and aspartate aminotransferase were due to lead acetate and cadmium treatment was dose dependently restored to the near normal level. In addition, galgun extract also significantly prevented the elevation of hepatic malon-dialdehyde formation in the liver of lead acetate and cadmium intoxicated mice in a dose-dependent manner. The results of this study clearly indicated that green tea and galgun extracts had nitrite scavenging ability and galgun extract had potent hepato-protective effects against lead acetate and cadmium-induced hepatic damage in mice and standard puerarin was also showed similar to the results of the galgun extracts.
Keywords
Puerariae Radix; Catechins; Lead; Cadium; Isoflavones; Puerarin; Nitrite scavenging effect;
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Times Cited By KSCI : 4  (Citation Analysis)
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