Plasma concentrations of atrial natriuretic hormone in acromegaly: relationship to hypertension.
Atrial natriuretic hormone is involved in the control of blood pressure and water-electrolyte balance. In order to assess the relationship between atrial natriuretic hormone and hypertension in acromegaly, 34 subjects were studied, 18 with acromegaly (10 normotensive and 8 hypertensive) and 16 healthy controls. Plasma atrial natriuretic hormone levels, as well as plasma renin activity, aldosterone and growth hormone levels were measured in basal conditions in all subjects. Additionally, plasma renin activity and aldosterone levels were determined after standard stimulation. In hypertensive acromegalic patients, atrial natriuretic hormone plasma concentrations (39.8 +/- 3.5 ng/l) were significantly higher than in patients without hypertension (27.9 +/- 4.1 ng/l), and in controls (28.6 +/- 1.3 ng/l) (p less than 0.01 in both comparisons). Stimulated plasma renin activity values were decreased in hypertensive acromegalic patients when compared with those in normotensive patients (1.14 +/- 0.29 vs 4.03 +/- 0.66 micrograms.l-1.h-1, p less than 0.01). In acromegaly, atrial natriuretic hormone levels correlated with mean arterial pressure (r = 0.58, p = 0.01). These results suggest that atrial natriuretic hormone plasma levels are slightly increased in patients with acromegaly and hypertension.
Soszyński
P
P
Department of Endocrinology, Medical Centre for Postgraduate Education, Warsaw, Poland.
Slowińska-Srzednicka
J
J
Zgliczyński
S
S
D000172:Acromegaly / Q000097:blood* / Q000150:complications; D000328:Adult; D000450:Aldosterone / Q000097:blood; D000704:Analysis of Variance; D009320:Atrial Natriuretic Factor / Q000097:blood*; D001794:Blood Pressure; D005260:Female; D006801:Humans; D006973:Hypertension / Q000150:complications / Q000378:metabolism*; D008297:Male; D008875:Middle Aged; D011188:Potassium / Q000378:metabolism; D012083:Renin / Q000097:blood; D012964:Sodium / Q000378:metabolism
D000450:Aldosterone; D009320:Atrial Natriuretic Factor; D012964:Sodium; D012083:Renin; D011188:Potassium