Antihypertensive Effect of Methanol Extract of Napoleona imperialis (p. beauv) in adrenaline induced hypertensive albino rats

James Omale, Achimugu Friday Etubi, Godwin Ebiloma

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Abstract

The aim of this study was to investigate the antihypertensive effect of the methanol extract of the leaf of Napoleona imperialis (p. beauv) in adrenaline induced hypertensive rats (AlHR) and compared with those of Propanolol in a cross over design. Napoleona imperialis leaf extract and the commercial drug (Propanolol) were administered orally and through intraperitoneal (I.P) route respectively for one week. Effect of the extract on different biochemical parameters such as blood glucose, serum triglycerides, serum cholesterol, serum creatine phosphokinase, lactate dehydrogenase, pulse rate and body weight were measured utilizing standard methods. Napoleona imperialis leaf extract at the doses of 26mg/130±17g and 52mg/130±17g of body weight were given orally every morning during treatment to show the effect of dose concentration. Propanolol at a dose of 0.084mg/130±17g of body weight was injected into rats according to its pharmacokinetic parameters. The extract administered rats had significantly lowered serum lactate dehydrogenase, creatine phosphokinase and pulse rate compared to the non-extract administered AlHR group (P<0.05). Blood glucose, serum triglycerides and serum cholesterol were not lowered and significantly different (P<0.05) when compared with the control. These results suggest that oral administration of methanol extract of Napoleona imperialis may be useful for prevention and treatment of hypertension.
Original languageEnglish
Pages (from-to)47-57
JournalInternational Journal of Biochemistry Research & Review
Volume1
Issue number2
DOIs
Publication statusPublished - 27 Apr 2011

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