Parameters of systemic and intracardiac hemodynamics, characteristics of metabolism, and structural polymorphisms of angiotensin converting enzyme (ACE) and angiotensin II type 1 receptor (ATR(1)) genes were studied in women of childbearing age and men of the same age both with first degree hypertension. Women had lower mean 24-hour blood pressure (BP), greater BP variability, preponderance of "dipper" variant of 24-hour systolic and diastolic BP profile, higher prevalence of left ventricular hypertrophy, lower blood levels of cholesterol, triglycerides, urea and potassium. Among women A allele of ATR(1) gene was significantly more frequent than C allele. Comparison of ATR(1) gene polymorphisms in women and men showed that frequencies of AA genotype and A allele were higher in women. Presence of DD genotype of ACE gene in women was related to parameters of both hemodynamics and metabolism, whereas that of II genotype of ACE gene as well as AA and AC genotypes of ATR(1) gene were linked with parameters of hemodynamics.