Association of adrenal steroids with hypertension and the metabolic syndrome in blacks

Srividya Kidambi, Jane M. Kotchen, Clarence E. Grim, Hershel Raff, Jingnan Mao, Ravinder Jit Singh, Theodore A. Kotchen

Research output: Contribution to journalArticle

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Abstract

Blacks have a high prevalence of hypertension and adrenal cortical adenomas/hyperplasia. We evaluated the hypothesis that adrenal steroids are associated with hypertension and the metabolic syndrome in blacks. Ambulatory blood pressures, anthropometric measurements, and measurements of plasma renin activity (PRA), aldosterone, fasting lipids, glucose, and insulin were obtained in 397 subjects (46% hypertensive and 50% female) after discontinuing antihypertensive and lipid-lowering medications. Hypertension was defined as average ambulatory blood pressure >130/85 mm Hg. Late-night and early morning salivary cortisol, 24-hour urine-free cortisol, and cortisone excretion were measured in a consecutive subsample of 97 subjects (40% hypertensive and 52% female). Compared with normotensive subjects, hypertensive subjects had greater waist circumference and unfavorable lipid profiles, were more insulin resistant, and had lower PRA and higher plasma aldosterone and both late-night and early morning salivary cortisol concentrations. Twenty-four-hour urine-free cortisol and cortisone did not differ. Overall, ambulatory blood pressure was positively correlated with plasma aldosterone (r=0.22; P<0.0001) and late-night salivary cortisol (r=0.23; P=0.03) and inversely correlated with PRA (r=-0.21; P<0.001). Plasma aldosterone correlated significantly with waist circumference, total cholesterol, triglycerides, insulin, and the insulin-resistance index. Based on Adult Treatment Panel III criteria, 17% of all of the subjects were classified as having the metabolic syndrome. Plasma aldosterone levels, but not PRA, were elevated in subjects with the metabolic syndrome (P=0.0002). The association of aldosterone with blood pressure, waist circumference, and insulin resistance suggests that aldosterone may contribute to obesity-related hypertension in blacks. In addition, we speculate that relatively high aldosterone and low PRA in these hypertensive individuals may reflect a mild variant of primary aldosteronism.

Original languageEnglish (US)
Pages (from-to)704-711
Number of pages8
JournalHypertension
Volume49
Issue number3 PART 2 SUPPL.
DOIs
StatePublished - Mar 2007

Fingerprint

Aldosterone
Steroids
Hypertension
Renin
Hydrocortisone
Waist Circumference
Blood Pressure
Cortisone
Insulin
Lipids
Insulin Resistance
Urine
Adrenocortical Adenoma
Hyperaldosteronism
Antihypertensive Agents
Hyperplasia
Fasting
Triglycerides
Obesity
Cholesterol

Keywords

  • Aldosterone
  • Cortisol
  • Hypertension
  • Insulin resistance
  • Metabolic syndrome
  • Plasma renin activity

ASJC Scopus subject areas

  • Internal Medicine

Cite this

Kidambi, S., Kotchen, J. M., Grim, C. E., Raff, H., Mao, J., Singh, R. J., & Kotchen, T. A. (2007). Association of adrenal steroids with hypertension and the metabolic syndrome in blacks. Hypertension, 49(3 PART 2 SUPPL.), 704-711. https://doi.org/10.1161/01.HYP.0000253258.36141.c7

Association of adrenal steroids with hypertension and the metabolic syndrome in blacks. / Kidambi, Srividya; Kotchen, Jane M.; Grim, Clarence E.; Raff, Hershel; Mao, Jingnan; Singh, Ravinder Jit; Kotchen, Theodore A.

In: Hypertension, Vol. 49, No. 3 PART 2 SUPPL., 03.2007, p. 704-711.

Research output: Contribution to journalArticle

Kidambi, S, Kotchen, JM, Grim, CE, Raff, H, Mao, J, Singh, RJ & Kotchen, TA 2007, 'Association of adrenal steroids with hypertension and the metabolic syndrome in blacks', Hypertension, vol. 49, no. 3 PART 2 SUPPL., pp. 704-711. https://doi.org/10.1161/01.HYP.0000253258.36141.c7
Kidambi, Srividya ; Kotchen, Jane M. ; Grim, Clarence E. ; Raff, Hershel ; Mao, Jingnan ; Singh, Ravinder Jit ; Kotchen, Theodore A. / Association of adrenal steroids with hypertension and the metabolic syndrome in blacks. In: Hypertension. 2007 ; Vol. 49, No. 3 PART 2 SUPPL. pp. 704-711.
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