Evaluation of hormone replacement therapy which may have an adrenomedullin-mediated protective effect on cardiovascular disorders


Bayram M., Bayram O., KARADENİZ BİLGİLİ M. Y., Caglayan O., Ilhan M. N.

AGING CLINICAL AND EXPERIMENTAL RESEARCH, vol.19, no.3, pp.224-227, 2007 (SCI-Expanded) identifier identifier identifier

  • Publication Type: Article / Article
  • Volume: 19 Issue: 3
  • Publication Date: 2007
  • Doi Number: 10.1007/bf03324694
  • Journal Name: AGING CLINICAL AND EXPERIMENTAL RESEARCH
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.224-227
  • Keywords: adrenomedullin, endothelin-1, HRT, menopause, middle cerebral artery PI and RI, NITRIC-OXIDE, BLOOD-FLOW, ENDOTHELIN-1, PROSTACYCLIN, MECHANISMS, PLASMA, RATIO
  • Lokman Hekim University Affiliated: No

Abstract

Background and aims: This study aimed to determine whether there is an adrenomedullin (AM)-mediated protective effect of postmenopausal estroger/progestin therapy (HRT) against cardiovascular disorders. Methods: A total of 22 post-menopausal women without hysterectomy undergoing postmenopausal symptoms (aged 43-52) were treated with conjugated equine estrogen (0.625 mg/die) plus medroxyprogesterone acetate (2.5 mg/die) for six months. The flow velocity of the right middle cerebral artery [measured as resistance index (RI) and pulsatility index (PI)], plasma levels of adrenomedullin and endothelin-1 (ET-1), mean baseline ratio of AM to ET-1, and lipid profiles were assessed before and after HRT. Results: A statistically significant difference was found for triglycerides, total cholesterol, AM/ET-1 ratio and right middle cerebral artery PI (p < 0.05), without any significant differences in HDL, LDL, AM, ET-1, systolic blood pressure, diastolic blood pressure, a right middle cerebral artery RI (p > 0.05) between pre- and post-HRT. Conclusions: Adrenomedullin may be added to other vasoactive peptides as a new potential candidate for HRT-mediated vascular protection. The ratio of AM/ET-1 vs AM or ET-1 alone may be a useful biological marker of this protection.