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PubMed2004

[Superficial infections caused by Microsporum canis in humans and animals].

Dermatophytic infections caused by M. canis in humans and animals have a world wide distribution and they are zoonotic. The objective in this work was to know the frequency of M. canis infections in humans and pets. We studied our cases from January 1994 to December 2002. The human samples were obtained from a Dermatological Department in a General Hospital and we registered the next data: age, sex, job, and affected area. The animal samples were obtained from a mycological veterinary laboratory, and we registered the presence or absence of clinical lesions. A total of 46 clinical cases of M. canis infections were recorded, 26 female and 20 males: tinea capitis 21, tinea corporis 17, tinea pedis five, onychomycosis two, and only one case with tinea faciei. The 46 cases with positive culture yield 42 positive samples in KOH. The age range varied from 2 to 60 years. Among the animals, we studied 461 dogs and found six KOH positive (1%) samples and cultured 23 isolates (4.98%): 21 M. canis, one M. gypseum and one Trichophyton spp. From the 68 samples of cats, eight (11.76%) were positive to KOH, being 26 (38.23%) M. canis isolates. In M. canis infections in humans, the age rage was wide with predominance in women. In animals, M. canis isolates represented the most dermatophytic infection.

Animals↗
PubMed1990

Study of lipids in dermatophytes. I. The effect of ketoconazole on fatty acids of Microsporum gypseum and its mutants.

There was studied the spectre of fatty acids and its changes induced by ketoconazole in the strain M. gypseum and its two mutants (UV-1, UV-2). The main saturate fatty acid in MG-155 and in both mutants is palmitic acid, the main unsaturate fatty acid is linoleic acid. In comparison with MG-155, UV-1 and UV-2 manifest a lower amount of stearic and oleic acids and a higher amount of stearic acid) in MG-155 and UV-1, an increase of saturate fatty acids is observed in UV-2. The unsaturate fatty acids affected by ketoconazole increase in MG-155 and UV-1, they decrease in UV-2 (the changes are most marked in linoleic acid). Oleic acid, as the main representant of monounsaturate fatty acids, decreases in MG-155 and in both mutants. There is discussed the relationship of these changes in fatty acids distribution to the eventual damage of membrane function, to the growth characteristics and to the metabolism of ergosterol.

Fatty Acids↗