Plasma concentration of urotensin II is raised in hypertension.

Abstract:

OBJECTIVES:Urotensin II is the most potent vasoconstrictor known. Its role in hypertension has not been investigated. Here, we studied the plasma levels in hypertensive and normotensive human subjects. DESIGN:A cross-sectional case-control study. SETTING:Hypertension clinic and research clinic of a university teaching hospital. PARTICIPANTS:Sixty-two hypertensive outpatient subjects (52% male, aged 57 +/- 13 years) and 62 normotensive controls (45% male, aged 54 +/- 13 years) recruited from the general population. MAIN OUTCOME MEASURES:Plasma urotensin II levels measured by radioimmunoassay, systolic and diastolic blood pressure. RESULTS:Plasma urotensin II was 8.8 +/- 0.9 pmol/l in normotensive controls and 13.6 +/- 1.4 pmol/l in hypertensive subjects (P = 0.005). In multiple regression analysis, systolic blood pressure was related to plasma urotensin II (beta = 0.31, P < 0.001) and age (beta = 0.28, P = 0.001), accounting for 10 and 8%, respectively, of the variance in systolic blood pressure. There was no significant correlation with gender, renal function or diabetes. CONCLUSIONS:Plasma urotensin II was raised in hypertensive patients compared to normotensive controls, and was directly related to systolic blood pressure. Our findings raise the possibility that urotensin II may have an aetiological role in hypertension and its complications.

journal_name

J Hypertens

journal_title

Journal of hypertension

authors

Cheung BM,Leung R,Man YB,Wong LY

doi

10.1097/01.hjh.0000125452.28861.f1

subject

Has Abstract

pub_date

2004-07-01 00:00:00

pages

1341-4

issue

7

eissn

0263-6352

issn

1473-5598

pii

00004872-200407000-00016

journal_volume

22

pub_type

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