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African Journal of Biomedical Research
Ibadan Biomedical Communications Group
ISSN: 1119-5096
Vol. 12, No. 3, 2009, pp. 219-223
Bioline Code: md09036
Full paper language: English
Document type: Research Article
Document available free of charge

African Journal of Biomedical Research, Vol. 12, No. 3, 2009, pp. 219-223

 en Comparative Neuropharmacological Activities Methanolic Extracts of Leaves and Roots of Cissus Cornifolia check for this species in other resources in Mice
Yaro, A.H.; Anuka, J.A.; Salawu, O.A.; Hussaini, I.M.; Usman, H. & Musa, A.M.

Abstract

Comparative neuropharmacological efficacy of the leaf and root 70 % methanol extract of Cissus cornifolia check for this species in other resources was studied in mice. The extractive values of the leaf and root methanol extract was found to be 31.5 g with yield of 12.6 %(w/w) and 37.8 g with the yield of 15.12 %(w/w) respectively. The acute toxicity (LD50) values in mice were found in leaf and root extracts as 2154.1 and 1131.4 mg kg-1 bd. wt. (i.p.) respectively. The sedative properties on the CNS of both the leaf and root extracts were studied employing diazepam-induced sleep, motor coordination, and exploratory behavioural test in mice. Both extracts potentiated the diazepam-induced sleeping time with markedly higher duration of sleep at 600 mg kg-1 bd. wt. (213.8 ± 27.5) exhibited by leaf extract. There was generally appreciable variation in the activities expressed by the leaf extract compared to that of the root in all the other tests conducted. Thus, at 300 mg k-1 bd. wt. the leaf extract revealed 5.3 ± 0.7 while the root had 8.0 ± 0.8 as mean number of head-dips in mice. The mean duration of beam walk was found to be 6.88 ± 0.71 and 4.72 ± 0.28 expressed by the leaf and root extract respectively at the same dose of 300 mg k-1 bd. wt. in mice. This work further confirms our earlier report on sedative effects of this plant as used traditionally against mental problems.

Keywords
Cissus cornifolia, Neuropharmacological activity, leaf, root, diazepam.

 
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