Sensibility of Entamoeba histolytica trophozoites to ivermectin

Francisco Gonzalez-Salazar, Benito D. Mata-Cardenas, Javier Vargas-Villarreal

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

Amebiasis caused by Entamoeba histolytica is a problem of public world health. The most frequent clinical presentation are the dysentery and the amebic liver abscess. Fifty millions of cases and more than 100 000 deaths for this disease are reported annually worldwide. The life cycle of E. histolytica has two phases: trophozoite and cyst. Trophozoites are the causal agent of disease. The effective treatment for the amebiasis includes drugs with serious collateral effects. Ivermectin is a macrolid with activity against endoparasites and ectoparasites causing strongiloidosis, filariasis, oncocercosis, scabiasis and pediculosis. The use of ivermectin has been extended almost worldwide; it is recognized as a safe drug. The main objective of this study was to determine in vitro sensibility of trophozoites of E. histolytica was to the treatment with ivermectin. To determine the sensibility of the parasites to the drug, E. histolytica was cultivated in PEHPS medium. During its logarithmic growth phase the trophozoites were exposed to different concentrations of ivermectin. As controls other antiparasitic drugs were used. For each drug, serial dilutions were prepared, and mixed in culture tubes with parasites (2 × 10 4 cells/ml). They were incubated for 72 h and then the percentage of growth inhibition was calculated by Probit analysis. Ivermectin showed activity against trophozoites of E. histolytica. The 50% of growth inhibition of ivermectin was 6.40 mg/ml. This dose was higher than for other anti parasitic drugs. Its activity in vivo in animal models remains to be demonstrated.
Original languageEnglish
Pages (from-to)318-320
Number of pages3
JournalMedicina
Publication statusPublished - 1 Sep 2009
Externally publishedYes

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Ivermectin
Trophozoites
Entamoeba histolytica
Amebiasis
Pharmaceutical Preparations
Parasites
Growth
Lice Infestations
Amoebic Liver Abscess
Antiparasitic Agents
Filariasis
Dysentery
Life Cycle Stages
Cysts
Public Health

Cite this

Gonzalez-Salazar, F., Mata-Cardenas, B. D., & Vargas-Villarreal, J. (2009). Sensibility of Entamoeba histolytica trophozoites to ivermectin. Medicina, 318-320.
Gonzalez-Salazar, Francisco ; Mata-Cardenas, Benito D. ; Vargas-Villarreal, Javier. / Sensibility of Entamoeba histolytica trophozoites to ivermectin. In: Medicina. 2009 ; pp. 318-320.
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Gonzalez-Salazar, F, Mata-Cardenas, BD & Vargas-Villarreal, J 2009, 'Sensibility of Entamoeba histolytica trophozoites to ivermectin', Medicina, pp. 318-320.

Sensibility of Entamoeba histolytica trophozoites to ivermectin. / Gonzalez-Salazar, Francisco; Mata-Cardenas, Benito D.; Vargas-Villarreal, Javier.

In: Medicina, 01.09.2009, p. 318-320.

Research output: Contribution to journalArticle

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AU - Mata-Cardenas, Benito D.

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SN - 0025-7680

ER -

Gonzalez-Salazar F, Mata-Cardenas BD, Vargas-Villarreal J. Sensibility of Entamoeba histolytica trophozoites to ivermectin. Medicina. 2009 Sep 1;318-320.