There is a heartening news for those suffering from pulmonary arterial hypertension (PAH) - a cardiovascular disease. Seeking ways to boost drug efficacy an international team of researchers have determined that an intravenous tissue-penetrating peptide enhances the activity of pulmonary drugs said a new research published in the American Journal of Pathology. 'The vascular homing peptide named 'CAR' can selectively target hypertensive pulmonary arteries to boost the pulmonary but not systemic effects of vasodilators' said Masahiko Oka of the department of pharmacology and internal medicine and centre for lung biology at the University of South Alabama US. 'Our results open