Abstract:Objective. To determine the effect of hypobaric hypoxia exposition in pulmonary arterioles expression of endothelin-1 (ET-1). Materials and methods. Two groups of commercial broiler chickens were used: one of them were raised at 2638 (hypobaric hypoxia) and the other one at 300 m (relative normoxia) above sea level. Incidence of pulmonary hypertension (PH) was evaluated by calculating the cardiac mass index values and ET-1 protein expression was established in pulmonary arterioles by immunohistochemistry and m… Show more
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