Disruption of the Apelin-APJ System Worsens Hypoxia-Induced Pulmonary Hypertension

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Disruption of the apelin-APJ system worsens hypoxia-induced pulmonary hypertension.

OBJECTIVE The G-protein-coupled receptor APJ and its ligand apelin are highly expressed in the pulmonary vasculature, but their function in this vascular bed is unclear. We hypothesized that disruption of apelin signaling would lead to worsening of the vascular remodeling associated with pulmonary hypertension (PH). METHODS AND RESULTS We found that apelin-null mice developed more severe PH c...

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Heart failure is a chronic, progressive disease in which the overexpression of biologically active molecules and neurohomonal activation are the key factors of the evolution and natural history. The apelin-APJ system is a newly discovered molecular pathway and the RAAS counterbalance is its principal effect. The apelin is a potent inotrope, vasodilator and diuretic with crucial cardioprotective...

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Pulmonary arterial hypertension (PAH) is a devastating disease characterized by pulmonary vasoconstriction, pulmonary arterial remodeling, abnormal angiogenesis and impaired right ventricular function. Despite progress in pharmacological therapy, there is still no cure for PAH. The peptide apelin and the G-protein coupled apelin receptor (APLNR) are expressed in several tissues throughout the o...

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ژورنال

عنوان ژورنال: Arteriosclerosis, Thrombosis, and Vascular Biology

سال: 2011

ISSN: 1079-5642,1524-4636

DOI: 10.1161/atvbaha.110.219980