No abstract

Dedico este trabalho:Aos meus amados pais, José Sabino e Vera Lúcia, por tudo, emespecial, pelo amor, confiança, apoio animals taken part in the study, the dogs over 4 years old and those which presented periodontal diseases had a higher isolation percentage. Yeasts were identified 43 of the 45 isolates, being that 86%(37) were from the genus Candida spp, 11,6% (5) belonged to the genus Trichosporon spp., and 2,3% (1) belonged to the genus Malasseziapachydermatis.The susceptibility profile through the "Etest®" method identified a relevant resistance of some strains to the antifungal drugs commonly used in the veterinary medical clinic. This found highlights the relevance of the continuity of this study to improve the clinical conduct and to explain many relapse treatments in both animals and humans.

Cryptococcus is an opportunistic yeast that causes life-threatening infections as meningoencephalitis primarily in immunocompromised hosts, generally associated with AIDS. The source of this organism is mainly pigeon excreta; however, other avian species' excreta are implicated as a source of this yeast. The aim of this study was to perform the isolation of yeasts of the Cryptococcus genus from the cloacae of 40 parrots kept in captivity area of the genus Amazona aestiva. These birds were anesthetized, the cloacae washed, and then swabs from the cloaca collected. The yeasts isolated from cloacae birds were studied by phenotypic and genotypic methods. The production of extracellular enzymes as virulence factors (protease and phospholipase) was performed too. From the total of parrots studied, 10 strains of yeasts were isolated. Nine of the strains belonged to the specie Cryptococcus albidus var. albidus and one sample belonged to the specie Cryptococcus laurentti. The extracellular enzymes research demonstrated that 80% of the isolates were phospholipase producers and all of them were protease positives. These results suggest that not just the environment but also the birds of A. aestiva genus may be the carriers of C. albidus. We point out that the strains produced virulence factors. This is the first report of the isolation of C. albidus var. albidus of A. aestiva parrots and to assert that this bird is a special ecological niche of capped yeast.

Dentistry science is a new specialty in veterinary medicine that has been growing in recent years, accompanied by the development of professionals who seek to improve the quality of life of pets. Cases related to problems in the oral cavity have gained significant importance in the medical clinic of professionals who treat small animals. Due to lack of professional knowledge or due to animal behavioral problems, such as aggressiveness, the anamnesis of the oral cavity is not performed most of the time, which ends up delaying the diagnosis of the pathology. In addition, an animal with a problem in the oral cavity may take years to show signs of the disease. In general, animals have an oral microbiota composed of various species of fungi, which, under specific conditions, can change from saprophytes to pathogens, compromising their health. Thus, the pre-knowledge of potentially pathogenic yeasts belonging to oral microbiota of dogs and their susceptibility profile compared to the main drugs used in antifungal therapy, is of fundamental importance as it ensures a clinical auxiliary support for the diagnosis and treatment of most diseases of the oral cavity.