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Vitamin A-responsive dermatosis in the dog
Journal of the American Veterinary Medical Association
|April 1, 1983
Summary
Vitamin A supplementation effectively treated focal skin lesions resembling seborrheic dermatitis in dogs, suggesting a potential link to vitamin A deficiency. Not all similar lesions responded, indicating specific diagnostic criteria are crucial for effective vitamin A therapy.
Area of Science:
- Veterinary Dermatology
- Nutritional Medicine
- Canine Health
Background:
- Seborrheic dermatitis is a common skin condition in dogs.
- Phrynoderma in humans is linked to vitamin A deficiency.
- The study investigated vitamin A's role in canine skin disorders.
Observation:
- Three dogs presented with focal, well-circumscribed skin lesions clinically suggestive of seborrheic dermatitis.
- Histopathology in these dogs was consistent with phrynoderma.
- These dogs were fed standard commercial dog food and were otherwise healthy.
Findings:
- Oral vitamin A administration led to rapid and complete resolution of skin lesions in the three affected dogs.
- Seven other dogs with similar lesions but different histopathologic findings did not respond to vitamin A therapy.
- This suggests a specific subset of skin lesions may be vitamin A responsive.
Implications:
- Vitamin A deficiency may be an underlying cause for certain types of canine skin lesions.
- Accurate histopathologic diagnosis is critical for identifying dogs that will benefit from vitamin A supplementation.
- This research highlights the importance of nutritional assessment in managing canine dermatological conditions.