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Age-associated changes in mesenteric arteries.

M Balsitis1, E MacDonald, A McDonald

  • 1Department of Physiology and Pharmacology, University of Strathclyde, Glasgow.

Age and Ageing
|September 1, 1992
PubMed
Summary
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Arterial wall structure changes with age, independent of blood pressure. The study found increased wall-to-lumen ratio and intimal area in aging human mesenteric arteries.

Area of Science:

  • Vascular biology
  • Gerontology
  • Cardiovascular research

Background:

  • Vascular disease is a leading cause of death and disability in older adults.
  • Hypertension is known to cause arterial medial hypertrophy.
  • Age-related arterial structural changes independent of blood pressure require investigation.

Purpose of the Study:

  • To examine age-related alterations in human mesenteric artery structure.
  • To determine if these structural changes occur independently of blood pressure.

Main Methods:

  • Measurement of collapsed human mesenteric artery sections (2-3 mm external diameter).
  • Utilized a semi-automatic image analysis system for precise measurements.
  • Analyzed the relationship between age, blood pressure, wall/lumen area ratio, and relative intimal area.

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Main Results:

  • A non-linear increase in the wall/lumen area ratio was observed with advancing age.
  • Relative intimal area also showed a significant non-linear increase with age.
  • No significant correlation was found between blood pressure and either the wall/lumen ratio or relative intimal area.

Conclusions:

  • Aging leads to significant structural remodeling of human mesenteric arteries.
  • These arterial structural changes occur independently of hypertension.
  • Findings highlight intrinsic age-related vascular modifications contributing to vascular disease risk.