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Orally active prostacyclin analogue for cardiovascular disease.

Prostacyclin has vasoprotective effects such as vasodilation and antiplatelet aggregatory activity. A relative deficiency of prostacyclin contributes to the pathogenesis of cardiovascular disease including pulmonary artery disease (PAH). Inconvenient intravenous dosing of prostacyclin led to the development of more stable, an orally active analogue: beraprost. It is a chemically stable prostacyclin analogue owing to its cyclo-pentabenzofuranyl structure and produces strong vasodilation and inhibition of platelet aggregation. To date, beraprost has been used in the treatment of PAH and peripheral arterial disease (PAD). Recently, we have shown that beraprost induces neovascularization in ischemic myocardium by enhancement of bone marrow cell mobilization. Interestingly, meta-analysis of clinical studies for PAD has shown that repeated administration of beraprost decreases the number of cardiovascular events. These results suggest that oral administration of beraprost has beneficial effects on cardiovascular disease. Orally active prostacyclin analogues, are promising drugs for the treatment of cardiovascular disease.