Vidya L, Malini MM, Varalakshmi P. Effect of pentacyclic triterpenes on oxalate-induced changes in rat erythrocytes.
Pharmacol Res 2000;
42:313-6. [PMID:
10987989 DOI:
10.1006/phrs.2000.0691]
[Citation(s) in RCA: 19] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Investigations were carried out to evaluate the effect of two, structurally related, triterpenes-betulin and lupeol-on the membrane peroxidation and antioxidant systems in red blood cells, during pyridoxine-deficient condition in rats. Increased lipid peroxidation levels in the absence and presence of ferrous sulphate, an inducer of lipid peroxidation, indicated peroxidative damage to the red-cell membrane. Na(+), K(+)-ATPase activity was decreased while that of other ion-specific ATPases were increased in the red cells of pyridoxine-deficient rats. Antioxidants, such as reduced glutathione, glutathione peroxidase, catalase, glutathione reductase and glutathione S-transferase were decreased, while superoxide dismutase alone was increased in the pyridoxine-deficient rat red blood cells. The red-cell osmotic fragility was found to be reduced. Treatment with the triterpenes proved effective in restoring the normal condition.
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