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Related Experiment Videos

[Effects of aging on arterial function in man].

X Girerd1, J J Mourad, P Boutouyrie

  • 1Service de Médecine Interne et Thérapeutique, INSERM U337, Hôpital Broussais, Paris.

Presse Medicale (Paris, France : 1983)
|July 22, 1992
PubMed
Summary

Arterial structure changes with age, leading to vessel dilation and increased rigidity. These age-related arterial changes, distinct from atherosclerosis, affect blood pressure in the elderly.

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Area of Science:

  • Vascular Biology
  • Gerontology
  • Cardiovascular Physiology

Background:

  • Arterial structure undergoes significant modifications throughout the aging process.
  • Age-related changes include elastic fiber loss, lumen dilation, and arterial wall thickening.
  • Differentiating aging effects from atherosclerosis is clinically challenging.

Purpose of the Study:

  • To investigate the structural and functional alterations in arteries due to aging.
  • To assess the differential impact of aging on elastic versus muscular arteries.
  • To understand the contribution of arterial aging to increased systolic blood pressure in the elderly.

Main Methods:

  • Evaluation of arterial structural changes using non-invasive segmental methods.
  • Assessment of functional consequences, including arterial rigidity and blood pressure.

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  • Comparative analysis of aging effects on different artery types.

    • Main Results:

    • Aging leads to elastic fiber loss, arterial lumen dilation, and increased vessel length.
    • Arterial wall thickening occurs with age, though distinct from atherosclerotic changes.
    • Arterial rigidity increases with age, with differential effects on elastic and muscular arteries.
    • Increased systolic arterial pressure in the elderly is linked to arterial structural and functional aging.

    Conclusions:

    • Arterial aging involves distinct structural and functional changes that increase vascular rigidity.
    • Aging impacts elastic and muscular arteries differently, influencing overall arterial function.
    • Age-related arterial modifications are a key factor in the elevated systolic blood pressure observed in older individuals.