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ARTICLE
Year : 2007  |  Volume : 14  |  Issue : 4  |  Page : 273-276

Spermatoprotective activity of the leaf extract of Psidium guajava Linn


Department of Anatomy, College of Health Sciences, University of Ilorin, PMB 1515, Ilorin, Nigeria

Correspondence Address:
O B Akinola
Department of Anatomy, College of Health Sciences, University of Ilorin, PMB 1515, Ilorin
Nigeria
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Source of Support: None, Conflict of Interest: None


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BACKGROUND: The leaves of Psidium guajava Linn. (guava) contain several natural antioxidants. We therefore designed the present study to evaluate the effect of ethanol extract of guava leaves on gossypol-associated sperm toxicity in Wistar rats. METHODS: Animal groups 1, 2, and 3 (n=6 each) were treated orally with crude cottonseed oil to provide 14 mg/kg/d of free gossypol for 53 d. Besides, groups 1 and 2 rats were supplemented orally with 250 mg/kg/d and 500 mg/kg/d respectively of guava leaf extract (GLE) for the same period. Group 4 animals (control, n=6) received normal saline. RESULTS: No significant difference (P>0.05) occurred in the sperm count of group 1 rats compared to control. In animal group 2, significant increase (P<0.05) in sperm count occurred, as opposed to group 3 animals, where this parameter decreased significantly (P<0.05). Besides, mean values of 78 %, 82 %, 30 %, and 65 % respectively were obtained for sperm motility in animal groups 1, 2, 3, and 4. CONCLUSION: Our findings suggest that ethanol extract of guava leaves possesses beneficial effect on gossypol-associated sperm toxicity, and may therefore enhance male fertility, possibly owing to its rich constituents of natural antioxidants.


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