Peer-reviewed veterinary case report
Yeast types and amounts on dog skin with seborrheic dermatitis
By Yurayart, Chompoonek et al.·Published in Veterinary microbiology·2011·Department of Veterinary Microbiology·View original on PubMed →
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Original publication title: Comparative analysis of the frequency, distribution and population sizes of yeasts associated with canine seborrheic dermatitis and healthy skin.
- Species:
- dog
Plain-English summary
A study found that dogs with seborrheic dermatitis (a skin condition causing flakiness and irritation) had higher levels of certain yeasts on their skin compared to healthy dogs. Specifically, two types of yeast, Malassezia pachydermatis and Candida parapsilosis, were more common in dogs with this condition. The researchers noted that these yeasts were found in larger numbers on dogs with primary seborrheic dermatitis and secondary seborrheic dermatitis. This suggests that these yeasts could play a role in the skin problems seen in affected dogs.
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Abstract
The purpose of this study was to investigate the diversity of yeast associated with the degree of canine seborrheic dermatitis (SD) by anatomical sites. Fifty-seven samples were divided as 17 healthy skin, 20 with primary seborrheic dermatitis (PSD), and 20 with secondary seborrheic dermatitis (SSD). Yeast isolation and characterization were carried out based on microscopical features and biochemical properties. DNA analysis at the internal transcribed spacer I of 26S rDNA region was utilized for species confirmation. Four species of yeast consisting Malassezia pachydermatis, Malassezia furfur, Candida parapsilosis and Candida tropicalis recovered from examined dogs. M. pachydermatis and C. parapsilosis were isolated from all dogs, but C. tropicalis and M. furfur were recovered from 3 healthy dogs and one diseased dog, respectively. The number of M. pachydermatis and C. parapsilosis in diseased dogs was higher than that of healthy specimens (P<0.01). High frequency and population size of C. parapsilosis were closely associated to PSD, while those of M. pachydermatis were associated with both PSD and SSD (P<0.01). C. parapsilosis were predominant at the perianal area. This study demonstrated the co-colonization of M. pachydermatis and C. parapsilosis in large amounts and frequency associated with stage of disease and anatomical site.
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Search related cases →Original publication on PubMed: https://pubmed.ncbi.nlm.nih.gov/20961712/