Publications (4)3 Total impact
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Article: The hypoglycaemic activity of the aqueous extract of Stachytarpheta angustifolia (Verbanaceae) in normoglycaemic and alloxan-induced diabetic rats.
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ABSTRACT: The hypoglycaemic activity of the aqueous extract of Stachytarpheta angustifolia (Verbanaceae) was studied in normoglycaemic and alloxan-induced diabetic rats. The extract was administered orally to the rats and blood glucose level was monitored for 7 h. Results indicate that the aqueous extract (750 mg kg(-1)) produced a significant blood glucose reduction in both normoglycaemic and alloxan-induced diabetic rats (p < 0.05). The present result therefore appears to support the use of the plant aqueous extract for the management of type 2 diabetes by traditional medical practitioners in Northern Nigeria. The mechanism of action of the aqueous extract needs to be studied.Pakistan Journal of Biological Sciences 01/2007; 10(1):137-41. -
Article: Antibiotic sensitivity profiles of salmonella organisms isolated from presumptive typhoid patients in Zaria, northern Nigeria.
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ABSTRACT: A hundred and ten Salmonella organisms (comprising 38 Salm. typhi, 13 Salm. paratyphi and 59 non-typhi Salmonella spp.) isolated from blood of patients diagnosed of typhoid fever in Zaria, Northern, Nigeria were evaluated for their in-vitro susceptibility to eighteen antibiotics. A high percentage of the Salmonella spp. exhibited resistance to the various test antibiotics. While ceftriaxone, ciprofloxacin and the aminoglycosides exhibited the greatest in-vitro activity against the isolates (82.7-96.4% of the isolates were susceptible), chloramphenicol and the aminopenicilins were considerably less effective (only 54.5% of isolates were sensitive). Multiple antibiotic resistance (MAR) indexing showed that 90.9% of the isolates had multiple drug resistance (MAR) index >0.2. Eighteen of these isolates were resistant to at least 12 of the 18 antibiotics; susceptible only to ceftriaxone, ciprofloxacin and the aminoglycosides. The percentage degree of resistance and MAR indices of the isolates to the antibiotic agents were irrespective of age and gender of the patients. The high prevalence of multiple drug resistant bacteria in this region is of epidemiological concern, as this will restrict the choices of antibiotics in the treatment of typhoid fever to a few compounds.African journal of medicine and medical sciences 06/2005; 34(2):109-14. -
Article: Evaluation of the antimalarial properties and standardization of tablets of Azadirachta indica (Meliaceae) in mice.
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ABSTRACT: The antimalarial activities of the tablet suspension of the bark and leaf of Azadirachta indica were evaluated on Plasmodium yoelli nigeriensis infected mice. The tablet suspensions exhibited high prophylactic, mode-rate suppressive and a very minimal curative schizonticidal effect. No animal was cured of the infection in the curative test and there was not much increase in the survival time of the animals compared with the control. The tablet suspensions from the leaf and bark at a concentration of 800 mg/kg and chloroquine at a concentration of 62.5 mg/kg body weight produced average percentage (%) parasitaemia of 79.6%, 68.2% and 99.5% for leaf, bark and chloroquine, respectively, in chemosuppression. Also in the prophylactic treatment, the tablet suspensions at 800 mg/kg and pyrimethamine at a concentration of 0.35 mg/kg gave an average parasitaemia reduction of 75.3%, 65.6% and 98.3% for the leaf, bark and pyrimethamine, respectively. There was a clear indication that both tablet suspensions from the leaf and bark possess antimalarial activity and a suspension from the former is relatively more effective than the bark. Extrapolation of the results from the antimalarial activity of the tablet suspension of the crude plant parts showed that an adult human would need to ingest a minimum of 48 g of the powdered plant material per day, an amount that is impracticable. A survival index value of 0.33 was obtained with the 800 mg/kg dose level, indicating that the tablet suspension has some moderate beneficial effect.Phytotherapy Research 09/2003; 17(7):807-10. · 2.09 Impact Factor -
Article: Effects of the diluent type on compressional characteristics of the mixed stem bark extract of Anogeissus leiocarpus and Prosopis africana tablet formulation.
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ABSTRACT: The hot water extract of a mixture of stem barks of Anogeissus leiocarpus and Prosopis africana was formulated into tablets using the wet granulation method of massing and screening. The Heckel equation was used to study the compaction characteristics of the extract formulated with lactose (water-soluble) or magnesium carbonate (water-insoluble) as diluents. Granules prepared using magnesium carbonate were found to exhibit two stages of deformation - an initial fragmentation followed by plastic flow while those formulated with lactose consolidated mainly by plastic deformation. Compressibility profiles of the formulations were affected by the diluent type. Tensile strength of granules formulated with magnesium carbonate was found to increase as the compression pressure increased from 56.6 to 113.2 MN m(-2) while the tensile strength of tablets formulated with lactose had its maximum at a compression force of 84.9 MN m(-2).Acta Pharmaceutica 04/2003; 53(1):49-56. · 0.91 Impact Factor
Top Journals
Institutions
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2005
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Ahmadu Bello University
- Department of Pharmaceutics and Pharmaceutical Microbiology
Zaria, Kaduna State, Nigeria
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