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Abstract Title:

Effect of Semecarpus anacardium Linn. nut milk extract on glutathione and its associated enzymes in experimentally induced mammary carcinoma.

Abstract Source:

J Med Food. 2006;9(2):265-9. PMID: 16822214

Abstract Author(s):

P Mathivadhani, P Shanthi, P Sachdanandam

Article Affiliation:

Departments of Medical Biochemistry, Dr. A.L.M. P-G. Institute of Basic Medical Sciences, University of Madras, Chennai, India.

Abstract:

Reduced glutathione (GSH) is a ubiquitous thiol-containing tripeptide that plays a key role in the etiology of many diseases and, in particular, cancer. GSH, the foremost internal protective system, participates directly in the destruction of free radical compounds and detoxification of carcinogens. The effect of Semecarpus anacardium nut milk extract was studied for gaining insight into the disease relationship to GSH and its metabolizing enzymes. Mammary carcinoma was induced by giving 7,12-dimethylbenz[a]anthracene (DMBA) (25 mg/mL of olive oil) perorally by gastric intubation, and nut milk extract of S. anacardium was administered orally (200 mg/kg of body weight/day) for 14 days to mammary carcinoma-bearing rats. The levels of GSH and its metabolizing enzyme activities were determined in liver and kidney homogenates. Significant decreases in GSH, glutathione peroxidase, glutathione S-transferase, glutathione reductase, and gamma-glutamylcysteine synthetase and a concomitant increase in oxidized glutathione, gamma-glutamyl transpeptidase, and glucose 6-phosphate dehydrogenase were observed in DMBA-induced mammary carcinoma in rats, while drug treatment reversed the conditions to near normal levels. There was a marked increase in GSH level and gamma-glutamylcysteine synthetase activity in drug control rats. These findings suggest that S. anacardium can exert its protective effect in maintaining the glutathione redox status by restoring the associated enzymes against oxidative stress in experimental mammary carcinoma.

Study Type : Animal Study

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