[Myocardial hypertrophy in patients with hypertensive disease: the role of genetic polymorphism of beta-adrenoreactive structures].

Aim of the study was investigation of association of polymorphic markers Gly389Arg and Ser49Gly of ADRB1 gene, Gly1l6Arg and Glu27Gln of ADRB2 gene, Trp64Arg of ADRB3 gene, and 825 of GNB3 gene with structural and functional peculiarities of the left ventricular (LV) myocardium in patients with hypertensive disease. We examined 177 patients - 83 (46.9%) men and 94 (53.1%) women. Mean age was 60.6 +/- 0.76 years. In the studied group there were 19 patients (10.9%) with I degree arterial hypertension (AH), 57 patients (32.8%) with II degree AH, and 101 patients (56.3%) with III degree AH. Structural peculiarities of LV myocardium were investigated with the help of echocardiography. There turned out to be 40 patients without signs of LV hypertrophy and 137 patients with increase of LV myocardial mass index. patients with LV hypertrophy had higher frequency of genotype Arg/Arg of polymorphic maker Gly398Arg of ADRB1 gene (=0.008. OR 2.32 [CI 1.34 - 4.11]). In patients with concentric and eccentric hypertrophy significantly higher frequency of Arg/Arg genotype compared with patients with normal LV geometry and concentric LV remodeling was also noted. At conduction of multifactorial analysis independently connected with increase of LV myocardial mass turned out age of patients, level of systolic arterial pressure, presence of excessive body mass and carriage of Arg/Arg genotype of polymorphic marker Gly389Arg of ADRB1 gene.