In pulmonary arterial hypertension, prostacyclin analogs and PDE 5 inhibitors synergistically stimulate ATP release from human RBCs

Researchers at Saint Louis University School of Medicine have discovered a novel interaction between prostacyclin (PGI2) analogs and phosphodiesterase 5 (PDE5) inhibitors, two groups of drugs used in the treatment of pulmonary arterial hypertension (PAH). They found that, in combination, these drugs stimulate enhanced release of a potent vasodilator adenosine triphosphate (ATP) from human red blood cells (RBCs). Their study appears in the September 2013 issue of Experimental Biology and Medicine...

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