International Journal of Diseases and Disorders
International Journal of Diseases and Disorders ISSN 2329-9835 Vol. 7 (6), pp. 001-003, June, 2019. © International Scholars Journals
In vitro susceptibility of Pythium insidiosum to garlic extract
R. A. Zanette1,2, P. E. R. Bitencourt3, C. Weiblen2, M. B. Pilotto2, A. S. Pigatto4, R. B. Ceolin3, M. B. Moretto1,3, S. H. Alves1,2 and J. M. Santurio1,2*
1Programa de Pós-Graduação em Farmacologia, Universidade Federal de Santa Maria, RS, Brazil.
2Laboratório de Pesquisas Micológicas, UniversidadeFederal de Santa Maria, RS, Brazil.
3Departamento de Análises Clínicas e Toxicológicas, Universidade Federal de Santa Maria, RS, Brazil.
4Centro Universitário Franciscano, UNIFRA, Santa Mar ia, RS, Brazil.
Accepted 21 March, 2019
Pythium insidiosum infections are difficult to treat with conventional antifungal agents because of the lack of ergosterol in the cytoplasmic membrane of this aquatic oomycete. The effectiveness of the garlic compound allicin has been demonstrated against a range of bacteria, fungi and plant oomycetes. Therefore, we evaluated the in vitro activity of Allium sativum extract against 17 clinical isolates of P. insidiosum. The assays were performed according to M38-A2 Clinical Laboratory and Standards Institute documents. Minimum inhibitory concentrations varied from <0.39 to 6.25 mg ml-1. The results showed that garlic extract has strong inhibitory activity toward P. insidiosum isolates in vitro. By understanding the cons of extrapolating in vitro data to clinical studies, A. sativum seems to offer a promising alternative in the treatment of pythiosis infections in humans and animals.
Key words: Pythium insidiosum, Allium sativum extract and broth microdilution.
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