Ambulatory blood pressure and insulinaemia in different clinical conditions.
The aim of our study was to examine the relation between insulin and ambulatory blood pressure (ABPM) in several clinical conditions. ABPM monitoring was performed with Spacelabs device. Fasting plasma insulin (FPI) was measured by radioimmunoassay. In young, non-obese normotensive subjects (n = 32) there were correlations between FPI and both asleep (r = 0.61, p < 0.001), and awake systolic ABPM (r = 0.44, p < 0.01). We have not observed any significant correlation between FPI and ABP in borderline hypertensives or in patients with established hypertension. In a group of 21 hypertensive type 2 diabetics (age 52 +/- 8 years) there was no significant correlation between FPI and ABPM. Among 14 normotensive type 1 diabetics (age 31 +/- 7 years, diabetes duration > 10 years) there was a significant negative correlation between the daily dose of insulin and 24-h systolic ABPM (r =-0.63, p < 0.02). In 20 patients with renal failure on chronic haemodialysis we have found a significant negative correlation between FPI and 24-h systolic APBM (r = 0.80, p < 0.001) and 24-h diastolic ABPM (r = -0.55, p < 0.05). Similar negative correlations were found in 20 nondialysed subjects with moderate chronic renal failure. Taken together, our results suggest that insulin could reveal its hypertensive or vasodilatory effect which depends on a clinical condition of the studied subjects.
Rynkiewicz
A
A
1st Department of Cardiology, Medical University of Gdansk, Poland.
Narkiewicz
K
K
Winnicki
M
M
Krupa-Wojciechowska
B
B
D000328:Adult; D001794:Blood Pressure / Q000502:physiology*; D018660:Blood Pressure Monitoring, Ambulatory; D016022:Case-Control Studies; D003924:Diabetes Mellitus, Type 2 / Q000503:physiopathology; D006801:Humans; D006973:Hypertension / Q000503:physiopathology; D007328:Insulin / Q000097:blood*; D007676:Kidney Failure, Chronic / Q000503:physiopathology; D008297:Male; D008875:Middle Aged
D007328:Insulin