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  • Author or Editor: Noémi Tarpataki x
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Atopic dermatitis (AD) is a genetically predisposed inflammatory and pruritic allergic skin disease with characteristic clinical features. New results on the pathogenesis and therapeutic aspects are discussed in this review. IgE-mediated hypersensitivity may be involved in the largest subset of atopic patients, yet there is another subset for which such involvement cannot be documented. Alterations in epidermal barrier function, priming of cutaneous antigen-presenting cells with IgE, intrinsic keratinocyte defects, and development of autoimmunity are also factors that contribute to the primary disease. Polymorphisms in regions of the genome that are of key importance to the inflammatory response contribute to the patient's clinical picture. Secondary infections, especially with Staphylococcus and yeast organisms, strongly modify or augment the inflammatory response, which changes over time. After the treatment of secondary infections and skin inflammation the avoidance of causal allergens would prevent relapse. Another causative therapy is the variously effective allergen-specific immunotherapy. The newest treatments for canine AD (cyclosporin A and tacrolimus) are highly effective at suppressing the allergic response and comparable to treatment with glucocorticoids. Canine AD presents a substantial diagnostic and therapeutic challenge over a patient's lifetime, and no single treatment is universally effective.

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Acta Veterinaria Hungarica
Authors: Noémi Tarpataki, Kinga Pápa, J. Reiczigel, P. Vajdovich and K. Vörös

Medical records of 600 dogs diagnosed with atopic dermatitis were reviewed and evaluated with reference to history, geographical distribution, breed predilection, clinical signs and positive reactions to allergens as determined by intradermal skin testing (IDT) manufactured by Artuvetrin Laboratories**. In 66.6% of dogs, the age of onset of atopic dermatitis was between 4 months and 3 years. Dogs living in the garden suburb of Budapest were more sensitive to house dust mites, fleas and moulds, and dogs from the western part of Hungary were more sensitive to weeds than to other allergens (p < 0.01). Positive reactions were most common to Dermatophagoides farinae followed by human dander. The breed distribution found in the present study was consistent with that reported in the literature, except for the breeds Hungarian Vizsla, Pumi, French bulldog, Doberman Pinscher and Bobtail which were over-represented among atopic dogs compared to the breed distribution of the general dog population of a large city in Hungary. Breeds with verified adverse reaction to food were Cocker spaniels, French bulldogs, Bullmastiffs, Bull terriers, St. Bernards, Tervurens, West Highland White terriers and American Staffordshire terriers (p < 0.05). The clinical signs of atopic dermatitis and their occurrence are in accordance with the data described in the literature.

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