Propylthiouracil attenuates monocrotaline-induced pulmonary arterial hypertension in rats

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题名:	Propylthiouracil attenuates monocrotaline-induced pulmonary arterial hypertension in rats
作者:	Sun CK;Yuen CM;Kao YH;Chang LT;Chua S;Sheu JJ;Yen CH;Ko SF;Yip HK.
日期:	2009
上传时间:	2011-09-27T03:14:23Z (UTC)
摘要:	BACKGROUND: Propylthiouracil (PTU) enhances nitric oxide production and inhibits smooth muscle cell proliferation, suggesting a possible role in the prevention of pulmonary arterial hypertension (PAH). METHODS AND RESULTS: The 30 male Sprague-Dawley rats were randomized to receive saline injection only (group 1), monocrotaline (MCT) (70 mg/kg) only (group 2) or MCT + 0.1% PTU in drinking water (group 3) given on day 5 after MCT administration. By day 35, western blot showed lower connexin43 (Cx43) and membranous protein kinase C-epsilon expressions in the right ventricle (RV) of group 2 animals than in the other groups (all P<0.05). Conversely, Cx43 expression in the lung was higher in group 2 than in other groups (all P<0.02). Additionally, mRNA expressions of matrix metalloproteinase-9, tissue necrotic factor-alpha, and caspase-3 were higher, whereas Bcl-2 and endothelial nitric oxide synthase were lower, in the lungs and RV of group 2 rats than in the other groups (all P<0.05). Moreover, the numbers of alveolar sacs and lung arterioles were also reduced in group 2 than in other groups (all P<0.05), and RV systolic pressure and RV weight were increased in group 2 compared with other groups (all P<0.001). CONCLUSIONS: PTU effectively attenuates complications associated with MCT-induced PAH.
關聯:	Circ J. 2009 Sep;73(9):1722-30
显示于类别:	[護理系] 期刊論文

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