Influence of age and postmenopausal estrogen replacement therapy on 1 carotid arterial stiffness in women

Yoji Nagai, Christopher J. Earley, Mary K. Kemper, Carolyn S. Bacal, E. Metter

Research output: Contribution to journalArticle

56 Citations (Scopus)

Abstract

Objective: This study examines the influence of age and current estrogen replacement therapy (ERT) on common carotid arterial (CCA) stiffness in women. Methods: The subjects comprised 172 women (age 55.6±16.4 years) from the Baltimore Longitudinal Study of Aging, including 37 current postmenopausal ERT users. The ERT users included 18 women taking estrogen alone and 19 women taking estrogen and progesterone. Bilateral CCA were examined by B-mode carotid ultrasonography, and the stiffness index was defined as the logarithm of the ratio of systolic to diastolic blood pressure (BP) divided by the fractional diameter increase during the cardiac cycle. Results: The stiffness index increased linearly with age (r=0.69, p<0.001), and was lower in ERT users than in postmenopausal nonusers (8.0±2.0 vs 9.7±3.1, p<0.01). Furthermore, the effects of age (β=0.67, p<0.0001) and ERT (β=-0.23, p<0.001) on the stiffness index persisted after adjustments for systolic BP (β=0.23, p<0.01), diastolic BP (β=-0.26, p<0.001) and other cardiovascular risk factors (model r2=0.59, p <0.0001). The stiffness index was similar in both ERT users with and without progesterone and lower than in postmenopausal nonusers (p<0.05) after considering the age effects. Conclusion: Age-associated increases in CCA stiffness are reduced by postmenopausal ERT.

Original languageEnglish (US)
Pages (from-to)307-311
Number of pages5
JournalCardiovascular research
Volume41
Issue number1
DOIs
StatePublished - Jan 1 1999
Externally publishedYes

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Vascular Stiffness
Estrogen Replacement Therapy
Blood Pressure
Progesterone
Estrogens
Baltimore
Longitudinal Studies
Ultrasonography

All Science Journal Classification (ASJC) codes

  • Physiology
  • Cardiology and Cardiovascular Medicine
  • Physiology (medical)

Cite this

Influence of age and postmenopausal estrogen replacement therapy on 1 carotid arterial stiffness in women. / Nagai, Yoji; Earley, Christopher J.; Kemper, Mary K.; Bacal, Carolyn S.; Metter, E.

In: Cardiovascular research, Vol. 41, No. 1, 01.01.1999, p. 307-311.

Research output: Contribution to journalArticle

Nagai, Yoji ; Earley, Christopher J. ; Kemper, Mary K. ; Bacal, Carolyn S. ; Metter, E. / Influence of age and postmenopausal estrogen replacement therapy on 1 carotid arterial stiffness in women. In: Cardiovascular research. 1999 ; Vol. 41, No. 1. pp. 307-311.
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