Effect of curcumin on the nitric oxide induced structural and functional modifications of high molecular mass goat brain cystatin

   


1. Department of Biochemistry, Faculty of Life Sciences, Aligarh Muslim University
Type: Experimental/clinical study
DOI: 10.18097/pbmc20105602209      UDK: 615.014.425; 547,979,4      PubMed Id: 21341509
Year: 2010 vol: 56  issue:2  pages: 209-219
Abstract: Cystatins are thiol proteinase inhibitors ubiquitously present in the mammalian body. In brain, they prevent unwanted proteolysis and are involved in several neurodegenerative diseases. Under physiological conditions nitric oxide can be found in almost all the tissues, but under pathological conditions NO has damaging effects. Its increased concentration, under various neural diseases leads to cell damage through formation of highly reactive peroxynitrite. Our present study was designed to investigate the protective effect of curcumin against NO induced damage of HM-GBC. NO caused intensive structural and functional damage of HM-GBC, resulting in 89% loss of its antiproteolytic activity after 2 h of incubation. Structural damage occurs in the form of protein degradation. Curcumin significantly protected HM-GBC against this damage. This suggests that curcumin has a significant potential in the treatment of diseases caused by nitrogen free radicals and this potential must be further explored for the development of novel drugs.
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Reference: Sumbul S., Khan M.S., Bano B., Effect of curcumin on the nitric oxide induced structural and functional modifications of high molecular mass goat brain cystatin, Biomeditsinskaya khimiya, 2010, vol: 56(2), 209-219.
This paper is also available as the English translation:10.1134/S1990750809030056
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