scholarly journals Cytotoxicity of Organochlorine Pesticides and Lipid Peroxidation in Rat Hepatocytes (Proceedings of the 22nd Symposium on Toxicology and Environmental Health)

Eisei kagaku ◽  
1997 ◽  
Vol 43 (1) ◽  
pp. P5-P5
Author(s):  
Toshihide SUZUKI ◽  
Miho KOMATSU ◽  
Hideo ISONO
2001 ◽  
Vol 129 (5) ◽  
pp. 683-689 ◽  
Author(s):  
A. Hino ◽  
M. Morita ◽  
M. Une ◽  
K. Fujimura ◽  
T. Kuramoto

2009 ◽  
Vol 4 (6) ◽  
pp. 1934578X0900400
Author(s):  
Mi Kyeong Lee ◽  
Seung Hyun Kim ◽  
Hyekyung Yang ◽  
Doo-Yeon Lim ◽  
Je-Ho Ryu ◽  
...  

We attempted to elucidate the hepatoprotective mechanism of two asiatic acid (AS) derivatives, 3β,23-dihydroxyurs-2-oxo-12-ene-28-oic acid (AS-10) and 3β,23-dihydroxyurs-12-ene-28-oic acid (AS-14), which exhibited significant protective activity against carbon tetrachloride (CCl4)-induced hepatotoxicity in primary cultures of rat hepatocytes. Our findings showed that AS-10 and AS-14 preserved the level of glutathione and the activities of antioxidant enzymes such as glutathione reductase, glutathione peroxidase, superoxide dismutase and catalase. In addition, these compounds ameliorated lipid peroxidation, as demonstrated by a reduction in the production of malondialdehyde. Furthermore, AS-10 and AS-14 did not restore the reduced total GSH level by BSO, indicating that the hepatoprotective activities of these compounds may be involved, in part, by regulating GSH synthesis. From these results, we suggest that both AS-10 and AS-14 exerted their hepatoprotective activities against CCl4-induced injury by preserving the cellular antioxidative defense system.


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