[PROGNOSTIC SIGNIFICANCE OF THE ENDOTHELIN-I LEVEL IN PATIENTS WITH ARTERIAL HYPERTENSION DIFFERING IN VITAMIN D LEVEL].

The aim of the study was to measure blood vitamin D (25(OH)D) and endothelin-1 levels by enzyme immunoassay and estimate their relation to results of 24-hr arterial pressure monitoring (APM) in patients with arterial hypertension differing in vitamin D level. The study included 144 patients with grade II AH (114 women of mean aged 50.8 ± 6 yr and 30 men of mean age 46 ± 6 yr).