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Related Concept Videos

Bone Disorders01:29

Bone Disorders

Aging and its effect on bone remodeling is the most common cause of bone disorders. In young and healthy people, bone deposition and resorption happen at an equal rate to maintain optimal bone health.
Bone deposition is also affected by the levels of sex hormones like estrogen and testosterone that promote osteoblast activity and bone matrix synthesis. When the level of these hormones decreases due to aging, it causes a reduction in bone deposition. As a result, bone resorption by osteoclasts...
Essential Minerals for Bone Health01:31

Essential Minerals for Bone Health

The minerals contained in all of the food we consume are essential for our organ systems. However, certain essential minerals, such as calcium, phosphorus, magnesium, manganese, and fluoride, largely affect bone health.
Calcium and Phosphorus
Calcium is a critical component of bones, especially in the form of calcium phosphate and calcium carbonate. Since the body cannot make calcium, it must be obtained from the diet. However, calcium cannot be absorbed from the small intestine without...
Study Designs in Epidemiology01:20

Study Designs in Epidemiology

Epidemiological study designs are fundamental tools for investigating the distribution, determinants, and control of health conditions in populations. They help researchers understand the relationships between exposures and outcomes, and they broadly fall into two categories: "observational" and "experimental" studies.
Observational studies are those where the researcher does not intervene but rather observes natural variations. They include cross-sectional, cohort, and case-control studies.

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Related Experiment Video

Updated: Jul 16, 2026

Scanning Skeletal Remains for Bone Mineral Density in Forensic Contexts
07:56

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Published on: January 29, 2018

Measurement of bone mineral density in mother-daughter pairs for evaluating the family influence on bone mass

N Barthe1, B Basse-Cathalinat, P J Meunier

  • 1Hôpital Pellegrin Tripode, Bordeaux, France. nicole.barthe@biophys.u-bordeaux2.fr

Osteoporosis International : a Journal Established As Result of Cooperation Between the European Foundation for Osteoporosis and the National Osteoporosis Foundation of the USA
|February 20, 1999
PubMed
Summary

A familial predisposition to low bone mineral density (BMD) is confirmed. Daughters of mothers with low BMD showed significantly lower vertebral BMD Z-scores, suggesting a genetic link to osteoporosis risk.

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Area of Science:

  • Bone Densitometry
  • Genetics
  • Osteoporosis Research

Background:

  • The interplay between genetic and environmental factors influencing bone mass remains incompletely understood.
  • Familial aggregation of low bone mineral content suggests a potential genetic predisposition.
  • Osteoporosis is a significant public health concern, necessitating research into its determinants.

Purpose of the Study:

  • To investigate the hypothesis of a familial predisposition to low bone mineral density (BMD).
  • To assess whether daughters of women with low BMD exhibit lower BMD compared to controls.
  • To explore the genetic component in the etiology of low bone mass.

Main Methods:

  • A multicentric study utilizing dual-energy X-ray absorptiometry (DXA) for bone mineral density (BMD) measurements.
  • Recruitment of case mothers with low vertebral BMD (Z-score < -2 SD) and control mothers with normal BMD.
  • Comparison of lumbar and femoral neck BMD Z-scores between daughters of case mothers and daughters of control mothers.

Main Results:

  • Daughters of mothers with low BMD had significantly lower mean vertebral BMD Z-scores (-0.82 vs. 0.01, p < 0.0001).
  • A trend towards lower femoral neck BMD Z-scores was observed in daughters of case mothers, though not statistically significant (-0.58 vs. -0.22, p < 0.073).
  • These findings support the existence of a familial component influencing bone density.

Conclusions:

  • The study confirms a familial predisposition to low bone mineral density.
  • Genetic factors likely play a significant role in determining an individual's bone mass.
  • This research contributes to understanding the heritability of osteoporosis risk.