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Biochemical, hematological, and hormonal profile of rats orally administered methanol stem bark extract of Napoleona vogelii Hook and Planch (Lecythidaceae).
Drug and Chemical Toxicology 2018 April 13
Napoleona vogelii is used in traditional medicine for the management of stomach aches, ulcer, and cancers. This study was conducted to investigate the subchronic toxicological effect of methanol stem bark extract of N. vogelii on biochemical, hematological, and hormonal profile of male and female rats. Forty rats of both sexes were randomly divided into four groups of 10 rats each and were administered 100, 200, and 400 mg/kg of the extract p.o. for 90 d. Ten milliliter per kilogram of distilled water p.o. was administered to control rats. On hematological assessment, mean corpuscular hemoglobin concentration was significantly (p < 0.01) increased at 400 mg/kg compared to control. Biochemical assessment showed a significant increase (p < 0.05) in levels of alanine aminotransferase and aspartate aminotransferase at 200 and 400 mg/kg, respectively, compared to control. Hormonal assessment of male rats revealed a significantly (p < 0.0001) reduced level of testosterone at all treatment doses compared to control while estradiol was significantly (p < 0.05) reduced at 100 mg/kg, but significantly (p < 0.0001) increased at 200 and 400 mg/kg respectively compared to control in female rats. Findings from this study demonstrate that N. vogelli is relatively safe on oral acute exposure but may possess the potential to cause hepatic dysfunction and infertility in male rats by perturbations of the hypothalamic-pituitary axis while conversely enhancing fertility in female rats on subchronic administration.
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