Isolamento E Identificação De Fungos Presentes Em Pêlos De Cães Hígidos E Com Sintomas De Dermatofitose, Do Município De Araçatuba, São Paulo

Abstract

ISOLATION AND IDENTIFICATION OF FUNGI PRESENT IN HEALTHY DOGS' HAIR AND IN DOGS WITH SYMPTOMS OF DERMATOPHYTOSIS IN THE CITY OF ARAÇATUBA, SÃO PAULO ABSTRACT:The Dermatophytosis (Ringworm) is a zoonotic disease caused by pathogenic fungi called dermatophytes. The aim of this study was to identify fungi present in healthy dogs hair and with symptoms of dermaphytosis in Araçatuba, São Paulo. One hundred of hair samples were collected, 50 of these from apparently healthy dogs collected in veterinary clinics and pet shops, and 50 from dogs with symptoms of dermatophytosis collected on zoonosis control centers. In each group, 25 samples were from males and 25 from females. For the detection of fungi, an examination direct in hair was conducted by clarifying with potassium hydroxide 20% and observation under a microscope. It was also performed culture, with Petri dishes with further macroscopic and microscopic identification of agents. In both groups, all samples were positive. In healthy animals, the most found fungus was Penicillium spp., followed by the dermatophyte Microsporumcanis. In animals with symptoms of dermatophytosis, the most isolated fungus was also the Penicillium spp., but dermatophytes Microsporumcanis and Trichophyton mentagrophytes had great prominence. According to the results, it was concluded that the dogs are natural reservoirs of saprobic fungus and dermatophyte even without apparent injury in the skin. There was no difference between sexes and the highest occurrence was the dermatophyte Microsporumcanis.

Micotoxinas e micotoxicoses em cães

“…As principais espécies produtoras de citrinina e patulina são P. citrinum e P. expansum GF. Em cães, este fungo ocasiona distúrbios gastrointestinais, bem como, efeitos neurotóxicos e imunológicos (CARDOSO et al, 2013).…”

Revisão Sobre Dermatofitose Em Cães E Gatos, Com Enfoque Nas Implicações Clínicas, Diagnóstico E Tratamento

“…Existem mais de 30 espécies de dermatófitos reconhecidas, sendo classificadas em 3 gêneros anamórficos: Microsporum, Trichophyton e Epidermophyton, sendo que apenas os dois primeiros incluem espécies que usualmente causam dermatofitose em animais domésticos (7).…”

“…e Zootec. 2021 nov.; v28: 001-013. de triagem, uma vez que cerca de 50% das espécies de M. canis e outros dermatófitos não emitem fluorescência quando submetidos a esta modalidade de radiação ultravioleta (7).…”

“…O método mais empregado e confiável para o diagnóstico definitivo da dermatofitose é o uso de culturas fúngicas. A amostra pode ser obtida escovando o animal com uma escova de dentes ou com raspados de pele (7,26).…”

Isolation of Microsporum canis and Microsporum gypseum in asymptomatic cats from the metropolitan area of Asunción-Paraguay

“…Los dermatofitos son un grupo de hongos ubicuos que tienen la capacidad de invadir e infectar piel, pelo y uñas, tanto del ser humano como de los animales (1,2) . Comprenden los géneros Microsporum, Trichophyton y Epidermophyton los cuales taxonómicamente se agrupan por sus características morfológicas, fisiológicas y antigénicas (3) .…”