In vitro and in vivo action of terpinen-4-ol, γ-terpinene, and α-terpinene against Trypanosoma evansi

Experimental Parasitology
Matheus D BaldisseraSilvia G Monteiro

Abstract

This study aimed to evaluate the susceptibility in vitro and in vivo of Trypanosoma evansi to terpinen-4-ol, γ-terpinene and α-terpinene, the three main compounds of tea tree oil (Melaleuca alternifolia) with known efficacy in the treatment of trypanosomosis. In vitro, a trypanocidal effect of terpinen-4-ol, γ-terpinene, and α-terpinene was observed when used alone or associated at 0.5, 1 and 2% concentrations i.e., the α-terpinene showed a faster trypanocidal effect when compared to chemotherapy (diminazene aceturate - D.A.). In vivo studies were performed in two experiments: I and II where experiment I used T. evansi infected mice treated with terpinen-4-ol, γ-terpinene and α-terpinene alone (at a dose of 1.0 mL kg(-1)) or associated (two compounds, dose of 0.5 mL kg(-1) of each compound; tree compounds, dose of 0.335 mL kg(-1) of each compound); Treatment with α-terpinene was able to extend animal longevity, but showed no curative efficacy. In experiment II, T. evansi infected mice were treated with D.A. associate with α-terpinene, where a curative efficacy of 57.14% was found, a much better result when D.A. was used alone (14.28%). In summary, α-terpinene associated with D.A. can be used as an alternative treatment for T. e...Continue Reading

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Citations

Oct 21, 2016·Parasitology·Danieli Urach MonteiroMário Luiz DE LA Rue
Jun 28, 2018·Anais Da Academia Brasileira De Ciências·Carine F SouzaBernardo Baldisserotto
Dec 11, 2019·Molecules : a Journal of Synthetic Chemistry and Natural Product Chemistry·Deniz TasdemirK Hüsnü Can Baser
Jun 28, 2016·Molecules : a Journal of Synthetic Chemistry and Natural Product Chemistry·Karel ŠmejkalMilan Žemlička
Nov 22, 2019·Journal of Parasitic Diseases : Official Organ of the Indian Society for Parasitology·Francisco N Morales-SernaEmma J Fajer-Ávila
Apr 3, 2020·Molecules : a Journal of Synthetic Chemistry and Natural Product Chemistry·Elaine C D GonçalvesRafael C Dutra
Jul 3, 2021·Molecules : a Journal of Synthetic Chemistry and Natural Product Chemistry·Joselin AguiarJosé S Câmara
Jan 29, 2021·Biomedicine & Pharmacotherapy = Biomédecine & Pharmacothérapie·Nelson Siukei LamFangli Lu

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