TY - JOUR T1 - Endothelin in Bronchial Biopsy Specimens from Horses with Recurrent Airway Obstruction AU - Fulvio, Laus AU - Emanuele, Paggi AU - Francesca, Mariotti AU - Matteo, Cerquetella AU - Stefano, Sgariglia AU - Beniamino, Tesei JO - Journal of Animal and Veterinary Advances VL - 11 IS - 19 SP - 3647 EP - 3651 PY - 2012 DA - 2001/08/19 SN - 1680-5593 DO - javaa.2012.3647.3651 UR - https://makhillpublications.co/view-article.php?doi=javaa.2012.3647.3651 KW - Horse KW -recurrent airway obstruction KW -endothelin KW -biopsy KW -immunohistochemical analysis AB - Recurrent Airway Obstruction (RAO) is a chronic, worldwide recognized diseases of horses. Despite the well known clinical presentation and the ease of diagnosis, the exact etiology and pathogenesis are still unclear which makes it difficult prevention and treatment. Recurrent obstruction of airway is caused by mucus production, bronchospasm and bronchial edema and the most important clinical signs are chronic cough and expiratory effort. The ET-1 is the most potent vasoconstrictor molecule up to now identified, produced by several cells as endothelial cells, smooth muscle cells and epithelial cells of airways. The ET-1 is a potent proinflammatory, secretagogues and bronchoconstrictors mediator. ET-1 can cause bronchial contraction on bronchial rings of horses in vitro, especially in horse with respiratory disease. ER -