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Molecules. 2019 Mar 30;24(7). pii: E1248. doi: 10.3390/molecules24071248.

In-Vitro Evaluation of 52 Commercially-Available Essential Oils Against Leishmania amazonensis.

Author information

1
Parasitology Department, Institute of Tropical Medicine "Pedro Kouri", Havana 10400, Cuba. monzote@ipk.sld.cu.
2
Parasitology Department, Institute of Tropical Medicine "Pedro Kouri", Havana 10400, Cuba. isa@ipk.sld.cu.
3
Aromatic Plant Research Center, 230 N 1200 E, Suite 100, Lehi, UT 84043, USA. psatyal@aromaticplant.org.
4
Aromatic Plant Research Center, 230 N 1200 E, Suite 100, Lehi, UT 84043, USA. wsetzer@chemistry.uah.edu.
5
Department of Chemistry, University of Alabama in Huntsville, Huntsville, AL 35899, USA. wsetzer@chemistry.uah.edu.

Abstract

Leishmaniasis is a neglected tropical disease caused by members of the Leishmania genus of parasitic protozoa that cause different clinical manifestations of the disease. Current treatment options for the cutaneous disease are limited due to severe side effects, poor efficacy, limited availability or accessibility, and developing resistance. Essential oils may provide low cost and readily available treatment options for leishmaniasis. In-vitro screening of a collection of 52 commercially available essential oils has been carried out against promastigotes of Leishmania amazonensis. In addition, cytotoxicity has been determined for the essential oils against mouse peritoneal macrophages in order to determine selectivity. Promising essential oils were further screened against intracellular L. amazonensis amastigotes. Three essential oils showed notable antileishmanial activities: frankincense (Boswellia spp.), coriander (Coriandrum sativum L.), and wintergreen (Gualtheria fragrantissima Wall.) with IC50 values against the amastigotes of 22.1 ± 4.2, 19.1 ± 0.7, and 22.2 ± 3.5 μg/mL and a selectivity of 2, 7, and 6, respectively. These essential oils could be explored as topical treatment options for cutaneous leishmaniasis.

KEYWORDS:

birch; coriander; frankincense; leishmaniasis; wintergreen

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