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IJEB Vol.49(07) [July 2011] >


Title: Inhibition of Naja nigricolis (Reinhardt) venom protease activity by Luffa egyptiaca (Mill) and Nicotiana rustica (Linn) extracts
Authors: Ibrahim, M A
Aliyu, A B
Abusufiyanu, A
Bashir, M
Sallau, A B
Keywords: Luffa egyptiaca
Naja nigricolis
Nicotiana rustica
Protease
Venom
Issue Date: Jul-2011
Publisher: NISCAIR-CSIR, India
Abstract: Luffa egyptiaca and Nicotiana rustica are used in traditional medicine to treat snakebites and were evaluated for inhibitory activities on Naja nigricolis venom protease. The aqueous and ethanolic extracts of L. egyptiaca significantly reduced the maximum velocity (Vmax) and the computed index of physiological efficiency (Kcat) of the enzyme in a dose dependent fashion. The protease activity was non-competitively inhibited by the aqueous extract of N. rustica with the Vmax significantly decreased and the KM remained unchanged. However, the N. rustica ethanol extract completely inhibited the protease activity. Ethyl acetate fractions partitioned from ethanol extracts of both plants were also found to completely inhibit the N. nigricolis venom protease activity at 0.1 and 0.05%. The use of these plants could be important in the treatment of snakebites.
Page(s): 552-554
CC License:  CC Attribution-Noncommercial-No Derivative Works 2.5 India
ISSN: 0975-1009 (Online); 0019-5189 (Print)
Source:IJEB Vol.49(07) [July 2011]

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