TY - JOUR A2 - Domagala, Iwona O. AU - Salvadori, Claudia AU - Rocchigiani, Guido AU - Lazzarotti, Camilla AU - Formenti, Nicoletta AU - Trogu, Tiziana AU - Lanfranchi, Paolo AU - Zanardello, Claudia AU - Citterio, Carlo AU - Poli, Alessandro PY - 2016 DA - 2016/06/15 TI - Histological Lesions and Cellular Response in the Skin of Alpine Chamois (Rupicapra r. rupicapra) Spontaneously Affected by Sarcoptic Mange SP - 3575468 VL - 2016 AB - Population dynamics of chamois (genus Rupicapra, subfamily Caprinae) can be influenced by infectious diseases epizootics, of which sarcoptic mange is probably the most severe in the Alpine chamois (Rupicapra rupicapra rupicapra). In this study, skin lesions and cellular inflammatory infiltrates were characterized in 44 Alpine chamois affected by sarcoptic mange. Dermal cellular responses were evaluated in comparison with chamois affected by trombiculosis and controls. In both sarcoptic mange and trombiculosis, a significantly increase of eosinophils, mast cells, T and B lymphocytes, and macrophages was detected. Moreover, in sarcoptic mange significant higher numbers of T lymphocytes and macrophages compared to trombiculosis were observed. Lesions in sarcoptic mange were classified in three grades, according to crusts thickness, correlated with mite counts. Grade 3 represented the most severe form with crust thickness more than 3.5 mm, high number of mites, and severe parakeratosis with diffuse bacteria. Evidence of immediate and delayed hypersensitivity was detected in all three forms associated with diffuse severe epidermal hyperplasia. In grade 3, a significant increase of B lymphocytes was evident compared to grades 1 and 2, while eosinophil counts were significantly higher than in grade 1, but lower than in grade 2 lesions. An involvement of nonprotective Th2 immune response could in part account for severe lesions of grade 3. SN - 2314-6133 UR - https://doi.org/10.1155/2016/3575468 DO - 10.1155/2016/3575468 JF - BioMed Research International PB - Hindawi Publishing Corporation KW - ER -