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[Osteoporosis and hormonal contraception].

T Fait1, A Nováková, J Zivný

  • 1Gynekologicko-porodnická klinika 1. LF UK a VFN Praha.

Ceska Gynekologie
|December 6, 2001
PubMed
Summary

Combined oral contraceptives favorably impact bone mineral density after age 30, especially with longer treatment durations. Gestagen-only drugs show no bone benefits, and effects in younger women are unclear.

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Area of Science:

  • Reproductive medicine
  • Bone metabolism
  • Pharmacology

Context:

  • Bone mass and mineral density are critical health indicators, particularly concerning age-related bone loss.
  • Contraceptive treatments, including combined oral contraceptives and progestogen-only preparations, are widely used by women of reproductive age.
  • Understanding the long-term skeletal effects of hormonal contraception is essential for women's health management.

Purpose:

  • To systematically review and analyze the existing literature on the influence of various contraceptive treatments on bone mass and mineral density.
  • To evaluate the impact of combined oral contraceptives (COCs) and progestogen-only contraceptives (POCs) on bone turnover and bone mineral density (BMD) across different age groups.

Summary:

  • Literary review of studies indexed in Medline database.
  • Combined oral contraception demonstrated a reduction in bone turnover, which is beneficial for bone mineral density, particularly after age 30 when bone loss typically begins.
  • The positive effect on BMD is significantly correlated with the duration of COC use. Progestogen-only contraceptives do not appear to confer similar skeletal benefits.
  • The impact of contraception on BMD in women aged 20-25, during peak bone mass acquisition, remains uncertain, with some evidence suggesting potential adverse effects from extremely-low dose COCs in this demographic.

Impact:

  • Findings suggest that combined oral contraceptives may play a protective role in bone health for women over 30, potentially mitigating age-related bone loss.
  • The duration of treatment is a key factor influencing the positive skeletal effects of combined oral contraceptives.
  • Further research is needed to clarify the effects of hormonal contraception on bone density in younger women (pre-peak bone mass) and to assess potential risks associated with specific formulations.

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