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Antifungal activity of allylamines on Epidermophyton floccosum: scanning electron microscopy study
Authors:P. Butty  M. Mallié  J. -M. Bastide
Affiliation:(1) Faculté de Pharmacie, Laboratoire d'Immunologie et Parasitologie, Montpellier, France
Abstract:The action of allylamine antifungal agents on Epidermophyton floccosum was studied using scanning electron microscopy. After 7 days of culture on Sabouraud dextrose agar, Epidermophyton floccosum samples were brought in contact with concentrations of 0.2 and 2 mgrg ml–1 and 0.01 and 0.1 mgrg ml–1 of naftifine and terbinafine, respectively. Lesions observed after 24 h, 3 and 7 days of contact were mainly on the structure and rigidity of the mycelial and macroconidial wall. They were characterized by hyphal ballooning and twisting and by apical bulbous bulges. Deterioration of macroconidia was characterized by wall exfoliation. The intensity of the deterioration depended on the dose and only slightly on the length of time that the sample and the antifungal drug were in contact.
Keywords:Naftifine  terbinafine  scanning electron microscopy  Epidermophyton floccosum
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