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Evolution, aging, and osteoporosis.

Stephanie Tung1, Jameel Iqbal

  • 1Department of Ecology and Evolutionary Biology, Princeton University, Princeton, NJ, USA.

Annals of the New York Academy of Sciences
|December 18, 2007
PubMed
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Aging leads to bone loss and osteoporosis due to decreased stress resilience. Future therapies may target aging itself to prevent bone diseases and improve bone mass.

Area of Science:

  • Gerontology
  • Bone Biology
  • Evolutionary Medicine

Background:

  • Aging is characterized by a declining capacity to manage life's stresses.
  • Pathophysiological changes, including bone mass reduction, are common in aging, leading to significant morbidity.
  • Evolutionary theory posits that somatic maintenance is prioritized only until successful reproduction.

Purpose of the Study:

  • To review osteoporosis and bone loss within the framework of aging theory.
  • To explore the relationship between aging processes and bone health.
  • To examine mechanisms contributing to age-related bone loss.

Main Methods:

  • Review of existing literature on aging, bone biology, and evolutionary theory.
  • Analysis of age-associated stress accumulation and its impact on bone turnover.

Related Experiment Videos

  • Examination of molecular and cellular mechanisms driving bone loss in aging.

    • Main Results:

    • Bone loss is presented as an antagonistically pleiotropic process linked to aging.
    • Age-related stress accumulation negatively affects bone turnover.
    • Gonadal failure, increased inflammatory cytokines, and bone marrow cellular changes contribute to bone loss.

    Conclusions:

    • Osteoporosis development is intrinsically linked to the aging process.
    • Werner's syndrome, a premature aging disease, provides insights into age-related bone loss hypotheses.
    • Future osteoporosis therapies may involve interventions aimed at preventing or slowing aging to preserve bone health.