Abstract |
The aim of this study was to identify apolar aldehydes in liver homogenates from rats with CCl4-induced cirrhosis and, as a corollary, the antioxidant effect of zinc administration. The study was performed in five control rats and in ten cirrhotic rats which were further sub-divided into two groups to receive either a standard diet or one supplemented with zinc. The percentage of hepatic fibrosis, plasma malondialdehyde concentration and alanine aminotransferase activity were measured as well as the following aldehydes: hexanal, octanal, decanal, 2-hexenal, 2-octenal, 2-nonenal, 2,4-heptadienal and 2,4-decadienal. Of the 10 cirrhotic rats, 4 had elevated concentrations of the highly toxic 2,4-dialkenals which coincided with a higher percentage of fibrosis and plasma alanine aminotransferase activity. These aldehydes were not observed in the control group. Zinc administration was associated with a reduction of the hepatic malondialdehyde concentration and an amelioration on the degree of hepatic injury. In conclusion, this study demonstrates the presence of the highly toxic 2,4-dialkenals in hepatic tissue of rats whith CCl4-induced cirrhosis. Results obtained would suggest that these particular aldehydes may be related to the severity of the hepatic injury.
|
Authors | N Ferré, J Girona, M Cabré, J Joven, A LaVille, L Masana, J L Paternáin, J Camps |
Journal | Molecular and cellular biochemistry
(Mol Cell Biochem)
Vol. 198
Issue 1-2
Pg. 57-60
(Aug 1999)
ISSN: 0300-8177 [Print] Netherlands |
PMID | 10497878
(Publication Type: Journal Article, Research Support, Non-U.S. Gov't)
|
Chemical References |
- Aldehydes
- Antioxidants
- Carbon Tetrachloride
- Zinc
|
Topics |
- Aldehydes
(metabolism)
- Animals
- Antioxidants
(pharmacology)
- Carbon Tetrachloride
(toxicity)
- Liver
(drug effects, metabolism)
- Liver Cirrhosis, Experimental
(chemically induced, metabolism, prevention & control)
- Male
- Rats
- Rats, Wistar
- Zinc
(pharmacology)
|