Polycystic ovary syndrome: Lack of hypertension despite profound insulin resistance

Sebastian Zimmermann, Robert A. Phillips*, Andrea Dunaif, Diane T. Finegood, Craig Wilkenfeld, Maria Ardeljan, Richard Gorlin, Lawrence R. Krakoff

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

115 Scopus citations

Abstract

It has been hypothesized that insulin resistance and hyperinsulinemia contribute to the development of arterial hypertension. To further investigate this relationship, we compared arterial blood pressure in controls and women with polycystic ovary syndrome (PCO), an insulin-resistant state. Fourteen PCO women and 18 normal control women of similar age, body mass index, and race were studied. Plasma glucose and insulin levels were determined in an oral glucose tolerance test. The insulin sensitivity (SI) index was determined by the minimal model method. Systolic and diastolic blood pressure were measured by 24-h ambulatory monitoring. Left ventricular mass was assessed by echocardiography. The two groups had comparable fasting glucose levels, but the 2-h postload glucose was higher in PCO (8.0 ± 0.5 vs. 5.6 ± 0.3 mmol/L; P < 0.001). Compared to controls, PCO women were significantly more insulin resistant by fasting insulin, 2-h insulin concentrations, and SI (28.3 ± 6.7 vs. 68.3 ± 10.0 min-1/nmol.mL; P < 0.01). Average ambulatory systolic (121 ± 2 vs. 118 ± 2 mm Hg) and diastolic (76 ± 2 vs. 73 ± 2 mm Hg) blood pressures were similar for PCO and control women. No difference was found in left ventricular mass. Therefore, despite profound insulin resistance and hyperinsulinemia, women with PCO do not have increased arterial pressure or left ventricular mass.

Original languageEnglish (US)
Pages (from-to)508-513
Number of pages6
JournalJournal of Clinical Endocrinology and Metabolism
Volume75
Issue number2
DOIs
StatePublished - Aug 1992

ASJC Scopus subject areas

  • Endocrinology, Diabetes and Metabolism
  • Biochemistry
  • Endocrinology
  • Clinical Biochemistry
  • Biochemistry, medical

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