Strongyloides ratti : In Vitro and In Vivo Activity of Tribendimidine

Keiser, J. and Thiemann, K. and Endriss, Y. and Utzinger, J.. (2008) Strongyloides ratti : In Vitro and In Vivo Activity of Tribendimidine. PLoS neglected tropical diseases, Vol. 2, H. 1 , e136.

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Official URL: http://edoc.unibas.ch/dok/A6005490

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BACKGROUND: Strongyloidiasis is a truly neglected tropical disease, but its public health significance is far from being negligible. At present, only a few drugs are available for the treatment and control of strongyloidiasis. METHODOLOGY/PRINCIPAL FINDINGS: We investigated the activity of tribendimidine against third-stage larvae (L(3)) of Strongyloides ratti in vitro and against juvenile and adult stages of the parasite in vivo. S. ratti larvae incubated in PBS buffer containing 10-100 microg/ml tribendimidine died within 24 hours. A single 50 mg/kg oral dose of tribendimidine administered to rats infected with 1-day-old S. ratti showed no effect. The same dose administered to rats harboring a 2-day-old infection showed a moderate reduction of the intestinal parasite load. Three days post-exposure a significant reduction of the immature worm burden was found. Administration of tribendimidine at doses of 50 mg/kg and above to rats harboring mature S. ratti resulted in a complete elimination of the larval and adult worm burden. For comparison, we also administered ivermectin at a single 0.5 mg/kg oral dose to rats infected with adult S. ratti and found a 90% reduction of larvae and a 100% reduction of adult worms. CONCLUSION/SIGNIFICANCE: Tribendimidine exhibits activity against S. ratti in vitro and in vivo. The effect of tribendimidine in humans infected with S. stercoralis should be assessed.
Faculties and Departments:03 Faculty of Medicine > Bereich Medizinische Fächer (Klinik) > Klinische Pharmakologie
03 Faculty of Medicine > Departement Klinische Forschung > Bereich Medizinische Fächer (Klinik) > Klinische Pharmakologie
UniBasel Contributors:Keiser, Jennifer
Item Type:Article, refereed
Article Subtype:Research Article
Publisher:Public Library of Science
Note:Publication type according to Uni Basel Research Database: Journal article
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Last Modified:05 Dec 2014 09:45
Deposited On:25 Apr 2014 08:01

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