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A concomitant decrease in cortical and trabecular bone mass in isolated hypogonadotropic hypogonadism and gonadal

K H Park1, S J Lee, J Y Kim

  • 1Department of Obstetrics and Gynecology, Yonsei University College of Medicine, Seoul, Korea. jny6693@yumc.yonsei.ac.kr

Yonsei Medical Journal
|November 24, 1999
PubMed
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Hypogonadism significantly lowers bone mineral density in young women, impairing peak bone mass achievement. Early therapeutic intervention is crucial to prevent bone loss and related complications.

Area of Science:

  • Endocrinology
  • Bone Metabolism
  • Reproductive Health

Background:

  • Hypogonadism, characterized by insufficient sex hormone production, can negatively impact bone health.
  • Amenorrheic women with gonadal dysgenesis or isolated hypogonadotropic hypogonadism (IHH) may experience compromised bone mineral density.
  • Understanding the effects of hypogonadism on bone is vital for timely intervention.

Purpose of the Study:

  • To evaluate the impact of hypogonadism on bone mineral density (BMD) in amenorrheic women.
  • To compare BMD in women with gonadal dysgenesis and IHH to age-matched controls.
  • To identify potential therapeutic windows for intervention.

Main Methods:

  • Cross-sectional study of 70 amenorrheic women (22 gonadal dysgenesis, 48 IHH) and 60 controls.

Related Experiment Videos

  • Bone mineral density (BMD) measured using DEXA at femur neck, Ward's triangle, trochanter, and lumbar spine.
  • Bone biochemical markers (ICTP, osteocalcin) analyzed and correlated with age.

    • Main Results:

    • Significantly lower BMD at all measured sites in IHH and gonadal dysgenesis patients compared to controls, indicating failure to achieve peak bone mass.
    • Rapid BMD decrease in IHH patients during early twenties, followed by slowed loss.
    • Elevated bone turnover markers (ICTP, osteocalcin) correlated negatively with age, suggesting a menopausal bone loss pattern.

    Conclusions:

    • Hypogonadism in young women leads to reduced peak bone mass and accelerated bone loss.
    • Gonadal dysgenesis patients showed similar bone turnover patterns but less pronounced age-related BMD changes.
    • Early and continuous therapeutic intervention is recommended to mitigate bone loss in hypogonadal women.