Table of Contents
ISRN Pharmacology
Volume 2013, Article ID 130989, 7 pages
http://dx.doi.org/10.1155/2013/130989
Research Article

Inhibitory Effect of Aqueous Extract of Stem Bark of Cissus populnea on Ferrous Sulphate- and Sodium Nitroprusside-Induced Oxidative Stress in Rat’s Testes In Vitro

1Department of Biochemistry, Ekiti State University, PMB 5363, Ado-Ekiti, Nigeria
2Department of Biochemistry, Federal University of Technology, PMB 704, Akure, Nigeria
3Department of Biochemistry, Afe Babalola University, PMB 5454, Ado-Ekiti, Nigeria

Received 14 November 2012; Accepted 13 December 2012

Academic Editors: R. J. Beninger, S. Cuzzocrea, J.-R. Sheu, and T. W. Stone

Copyright © 2013 Seun F. Akomolafe et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Cissus populnea are plants associated with a myriad of medicinal uses in different parts of the world and are good sources of carotenoids, triterpenoids, and ascorbic acid. The antioxidant properties and inhibitory effect of water extractible phytochemicals from stem bark of C. populnea on FeSO4 and sodium nitroprusside- (SNP-) induced lipid peroxidation in rat testes were investigated in vitro. The results revealed that the extract was able to scavenge DPPH radical, chelate Fe2+ and also had a high reducing power. Furthermore, the incubation of the testes tissue homogenate in the presence of FeSO4 and SNP, respectively, caused a significant increase in the malondialdehyde (MDA) contents of the testes. However, the aqueous extract of the stem bark of C. populnea caused a significant decrease in the MDA contents of both Fe2+ (EC50 = 0.027 mg/mL) and SNP- (EC50 = 0.22 mg/mL) induced lipid peroxidation in the rat testes homogenates in a dose-dependent manner. The water extractible phytochemicals from C. populnea protect the testes from oxidative stress and this could be attributed to their high antioxidant activity: DPPH-scavenging ability, Fe2+-chelating and -reducing power. Therefore, oxidatively stress in testes could be potentially managed/prevented by this plant.