Abstract
The purpose of this work was to investigate the testicular effects of Nigerian bonny light crude oil on male albino rats. Male albino rats were administered 200, 400, and 800 mg/kg body weight of bonny light crude oil dissolved in Tween 80 in their drinking water for 7 days, while the control group received Tween 80 in their drinking water only. After 7 days, the rats were sacrificed and testis excised, weighed, and processed for histological examination. Treatment with bonny light crude oil showed a dose-dependent decrease in the absolute weight of the testes, and a significant ( P<0.05) dose-dependent reduction in the epididymal sperm number (ESN). The final body weights of the animals treated with crude oil were also significantly ( P<0.05) decreased. Histological evaluation of the testes showed slight to severe degeneration or even complete absence of seminiferous tubules and necrosis of cells depending on the dose of the crude oil. This study suggests that the Nigerian bonny light crude oil is a testicular toxicant and its use as a folklore medicine may cause infertility.
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