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Body identical hormone replacement.

Nick Panay1

  • 1Queen Charlotte's & Chelsea and Chelsea & Westminster Hospitals, Imperial College, London, UK nickpanay@msn.com.

Post Reproductive Health
|June 1, 2014
PubMed
Summary

The Women's Health Initiative's adverse outcomes may stem from hormone dosage and type. Body-identical estradiol and progesterone, used in newer studies, offer a different approach to hormone replacement therapy.

Area of Science:

  • Reproductive endocrinology
  • Cardiovascular health
  • Hormone replacement therapy

Background:

  • The Women's Health Initiative (WHI) reported adverse outcomes, potentially linked to high hormone dosages in older women.
  • Differences between synthetic and natural hormones (conjugated equine estrogens vs. 17 beta estradiol; medroxyprogesterone acetate vs. natural progesterone) may explain WHI results.
  • Previous observational trials suggested cardiovascular benefits from hormone therapy, contrasting with WHI findings.

Purpose of the Study:

  • To review the effects of body-identical estradiol and progesterone.
  • To compare transdermal estradiol and oral micronized progesterone with physiological environments.
  • To evaluate cardiovascular risk markers in younger women using specific hormone interventions.

Main Methods:

Keywords:
Bio-identicalbody identicalestradiolhormonesprogesterone

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  • Review of recent studies focusing on cardiovascular risk markers.
  • Analysis of interventions using predominantly estradiol and natural progesterone (transdermal and oral).
  • Examination of hormone replacement therapy with body-identical estradiol and progesterone.

Main Results:

  • Newer studies utilize estradiol and natural progesterone, differing from WHI interventions.
  • Focus on younger women and specific delivery methods (transdermal, oral micronized).
  • Evaluation of physiological effects and cardiovascular implications of these hormones.

Conclusions:

  • Adverse outcomes in WHI might be attributable to hormone type and dosage.
  • Body-identical estradiol and progesterone represent a distinct approach to hormone therapy.
  • Further research is needed to clarify the cardiovascular effects of modern hormone replacement strategies.