Publications by authors named "Peter Achunike Akah"

Objective: Aqueous extract of unripe fruit is commonly used for the treatment of ulcers in eastern Nigeria. This study aimed to assess the acute and subacute effects of an aqueous extract of unripe fruit on male and female fertility in rats.

Methods: Aqueous extracts obtained by maceration were analyzed for acute and subacute toxicity and for the presence of phytochemical constituents using standard procedures.

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Chemical investigation of the ethanol extract of the leaves of (P. Beauv) led to the isolation of two new caffeic acid glycosides, Newboulasides A and B . The structures of these compounds were determined on the basis of extensive spectroscopic methods, including 1D-, 2D-NMR and MS data.

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Background M. aboensis has wide ethnopharmacological applications but very little has been done on the pharmacological basis for these indications. This study evaluated the antioxidant potentials of the leaf extracts of M.

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Ethnopharmacological Relevance: Newbouldia laevis (P. Beauv) has a long-standing ethnomedicinal use in the management of diabetes mellitus. However, no scientific evidence has established its potentials in the management of obesity dependent diabetes.

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Background: , commonly called '', a versatile plant used locally to treat malaria fever in some parts of sub-Saharan Africa was investigated for anti-plasmodial and anti-inflammatory activities.

Objective: The study was designed to evaluate the antiplasmodial as well as anti-inflammatory activities of whole extract and cyclotide-rich fraction of .

Method: The dichloromethane-methanol extract (ODE) of the plant, was investigated for suppressive and curative antiplasmodial activities against in mice.

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Article Synopsis
  • The study investigates the antiplasmodial effects of the leaf extract from Landolphia owariensis, traditionally used in southeast Nigeria for malaria treatment, on Plasmodium berghei-infected mice.
  • Results showed significant suppression of parasitemia and improved survival rates in treated mice, with the methanol fraction demonstrating the highest antimalarial activity and low toxicity.
  • The findings support the medicinal use of L. owariensis by identifying key phytochemicals like alkaloids and flavonoids responsible for its effectiveness against malaria.
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The effects of the methanol extract (LHE), hexane (LHHF), ethylacetate (LHEF) and methanol (LHMF) fractions of leaf of Leptadenia hastata on acute and chronic inflammation were studied. Furthermore, the effects of LHE on acetic acid induced increase in vascular permeability, carrageenan induced leucocyte migration and membrane stability were evaluated. The LHE and fractions were also subjected to phytochemical analysis.

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Ficus exasperata have been reported to have wide applications in the treatment of many human diseases. However, its traditional use in the treatment of wounds has not been validated by any scientific study. Also, its safety in the management of chronic disease conditions requires attention.

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Root bark preparation of Annona senegalensis Pers. (Annonaceae) is used in Nigerian ethnomedicine for treatment of infectious diseases. Extraction of the A.

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The antiulcer and gastrointestinal effects of methanol stem bark extract (BFME) of Bridelia ferruginea Benth. (Euphorbiaceae) and its solvent fractions-dichloromethane (DCMF) and methanol (MF)-were studied using indomethacin- and ethanol-induced ulcers in rats, small intestinal transit of charcoal meal in mice, and the effects on acetylcholine-induced contractions of the isolated guinea pig ileum. The extract and fractions significantly (P<0.

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This study was carried out to investigate the effect of concurrent oral administration of aqueous leaf extract of Azadirachta indica (Meliaceae) on the pharmacokinetic properties of chloroquine sulphate in experimental rabbits. The results indicated that concurrent administration of both agents resulted in a significant decrease in serum concentration, slower absorption and elimination as well as longer half-life of chloroquine sulphate. The highest relative decrease of 78.

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Pavetta crassipes leaf is routinely used locally in Nigeria for the management of respiratory disorders and hypertension. The hypotensive and other cardiovascular effects of Pavetta crassipes were investigated in cats and rats. The effects of the extract on rat and cat blood pressures, isolated rat atria, rat portal vein, isolated rat aorta and rat vas deferens were studied.

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