Antifungal resistance has been associated with biofilm formation in many microorganisms, but not yet in Malassezia pachydermatis. This saprophytic yeast can cause otitis and dermatitis in dogs and has emerged as an important human pathogen, responsible for systemic infections in neonates in intensive care units. This study aims to evaluate the in vitro antifungal susceptibility of M. pachyderma...

El objetivo del presente estudio fue determinar la presencia de patógenos fúngicos a partir lesiones dermatológicas en grandes y pequeñas especies animales clínicas veterinarias refugios Bogotá, Colombia. De un total 30 caninos, 15 felinos 2 equinos se obtuvieron muestras raspado piel (31) e hisopados óticos (26) (44), que fueron analizadas mediante examen directo, cultivo identificación nivel ...

BACKGROUND Malassezia pachydermatis is a yeast of importance in both veterinary and human medicine. AIMS To know if M. pachydermatis grow on mycological media with high concentrations of gentamycin. METHODS Twenty M. pachydermatis strains were streaked on Sabouraud Dextrose Agar plates with different concentrations of gentamycin. RESULTS All isolates were inhibited when high concentration...

The genus Malassezia has been considered an emergent pathogen [4] and could be found in seborrheic dermatitis lesions as spherical yeast cell shapes and in pityriasis versicolor forming short hyphae with yeast cells [3]. Picrosirius is used in histology to stain collagen [5] and has been also used to stain Cryptoccoccus spp. and Paracoccidioides brasiliensis [1,2]. However, there are not studie...

the aim of this study was to assess skin colonization by malassezia species in full-term healthy newborn calves and their dams. two hundred samples from the skins and ears of 50 neonatal calves and their dams were examined on two occasions, first and fourth weeks after birth. all of the samples were determined by cytological examination and fungal culture. the isolated yeasts were identified fo...

Pityriasis versicolor (PV) is a disease with worldwide distribution. Twelve different species of Malassezia yeast have been described. The objective of this study was to determine which species of Malassezia are more prevalent in patients with pityriasis versicolor. Samples were collected by scraping the lesions of 87 patients with a clinical suspicion of pityriasis versicolor. The samples were...

Necrotizing infundibular crystalline folliculitis is a rare condition characterized by folliculocentric waxy papules in the seborrheic areas of adult patients, with intrafollicular filamentous birefringent deposits as histopathologic clue. Although real pathogenesis necrotizing remains unclear, material seems to be derived from an interaction between such superficial microorganisms gram-positiv...

Malassezia spp. are lipid-dependent yeasts that have been related to skin mycobiota and dermatological systemic diseases. Study of lipid droplets (LDs) is relevant elucidate the unknown role these organelles in gain a broader overview metabolism Malassezia. Here, we standardized two protocols for analysis LDs M. pachydermatis globosa. The first describes co-staining confocal laser-scanning fluo...