Toxicity and efficacy of aqueous crude extracts from Allium sativum, Callistemon citrinus and Moringa stenopetala against L. Major

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dc.contributor.authorGikonyo, N.K.
dc.contributor.authorKinuthia, Geoffrey K.
dc.contributor.authorAnjili, Christopher O.
dc.contributor.authorKabiru, Ephantus W.
dc.contributor.authorKigondu, Elizabeth M.
dc.contributor.authorIngonga, Johnny M.
dc.date.accessioned2015-03-12T12:26:23Z
dc.date.available2015-03-12T12:26:23Z
dc.date.issued2015-09
dc.descriptionJournal articleen_US
dc.description.abstractCutaneous leishmaniasis (CL) treatment involves pentavalent antimonials, amphotericin B, pentamidine, miltefosine among others. These drugs are toxic, costly, and require prolonged use. CL is a protozoan skin infection which may lead to disfiguring and stigmatization. In Kenya, CL is common in Baringo County where it is caused by Leishmania major and transmitted by infected female phlebotomine sand fly. Leishmaniases are common in poverty stricken areas where victims opt for local herbal therapies. Herbs used haven’t been tested scientifically to verify their toxicity and efficacy. The current study determines in vitro toxicity and in vivo efficacy of aqueous crude extracts of Moringa stenopetala, Callistemon citrinus, and Allium sativum against L. major. The IC50 of aqueous extracts against promastigotes ranged from 297μg/ml to 575μg/ml compared to Pentostam and liposomal amphotericin B with IC50 of 0.26μg/ml and 0.82μg/ml respectively. The viability of promastigotes upon exposure to extracts ranged from 52.55% to 60.57%. Similarly the IC50 of extracts against vero cells ranged between 467μg/ml to 2105μg/ml compared to 108μg/ml and 60μg/ml for pentostam and liposomal amphotericin B respectively. Orally administered A. sativum reduced L. major caused footpad lesions significantly (P < 0.05) when compared to control PBS. The efficacy of oral C. citrinus extracts (B) in reducing amastigotes in spleens of infected BALB/c mice was 82.99%, followed by oral M. stenopetala (A) at 66.96% and oral A. sativum (C) at 60.37% compared to pentostam and liposomal amphotericin B at 66.40% and 60.62% respectively. The difference between the mean total LDUs for aqueous oral C. citrinus extracts and control oral PBS was significant (P = 0.017). It was concluded that crude aqueous extracts of A. sativum, M. stenopetala, and C. citrinus show antileishmanial activity at low toxicity. Inclusion of garlic and moringa in the diets of people in leishmaniases foci should be emphasized.en_US
dc.description.sponsorshipscientists and researchers from Kenya Medical Research Institute (KEMRI-Nairobi); Kenyatta University; and University of Nairobien_US
dc.identifier.citationKabarak Journal of Research & Innovation Volume 3 Number 1 (2015) ISSN 2305-784Xen_US
dc.identifier.urihttp://ir-library.ku.ac.ke/handle/123456789/12379
dc.language.isoenen_US
dc.publisherKabarak Universityen_US
dc.subjectvero cellsen_US
dc.subjectLeishmania majoren_US
dc.subjectaqueous extractsen_US
dc.subjecttoxicityen_US
dc.subjectefficacyen_US
dc.subjectA. sativumen_US
dc.subjectC. citrinusen_US
dc.subjectM. stenopetalaen_US
dc.titleToxicity and efficacy of aqueous crude extracts from Allium sativum, Callistemon citrinus and Moringa stenopetala against L. Majoren_US
dc.typeArticleen_US
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