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Changes in calcium kinetics associated with menarche

S A Abrams1, K O O'Brien, J E Stuff

  • 1United States Department of Agriculture/Agricultural Research Service, Children's Nutrition Research Center, Department of Pediatrics, Baylor College of Medicine, Houston, Texas 77030, USA.

The Journal of Clinical Endocrinology and Metabolism
|June 1, 1996
PubMed
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Puberty significantly impacts calcium metabolism in girls. Bone calcium deposition peaks around menarche, highlighting puberty

Area of Science:

  • Pediatric Endocrinology
  • Calcium Metabolism
  • Bone Health

Background:

  • Puberty is a critical period for bone accrual.
  • Understanding calcium (Ca) metabolism during this phase is vital for long-term bone health.

Purpose of the Study:

  • To investigate the effects of puberty on calcium kinetics in adolescent girls.
  • To determine the relationship between menarche timing and bone calcium deposition rates.

Main Methods:

  • Measured calcium kinetic parameters in 43 healthy girls 1-60 months post menarche.
  • Utilized multiple regression analysis to assess correlations between menarche timing, age, and bone Ca deposition.
  • Conducted a longitudinal study on 17 girls to track changes in bone Ca deposition around menarche.

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Main Results:

  • A strong inverse correlation was found between months post menarche and bone calcium deposition rate (Vo +).
  • Months post menarche was a more significant predictor of Vo + than chronological age.
  • Peak bone calcium deposition occurred approximately 8 months before menarche, decreasing thereafter.

Conclusions:

  • The perimenarcheal period is crucial for peak bone calcium deposition in girls.
  • Puberty's influence on bone calcium metabolism is significant and closely linked to menarcheal status.