“…The Ser49Gly and Arg389Gly polymorphisms of ADRB1 have been associated with a number of phenotypes, mostly related to the cardiovascular system, including heart rate (5,6), heart failure (7-10), dilated cardiomyopathy (11,12), myocardial infarction (MI) (13), and hypertension (14), but with conflicting results. In addition to ADRB1 polymorphisms, the ADRB2 polymorphisms, Gly16Arg and Gln27Glu, have been evaluated in relation to several cardiovascular diseases, including hypertension (15,16), MI (15,(17)(18)(19)(20), andbeen studied in relation to idiopathic ventricular arrhythmias in a Turkish population (22).…”