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Is arteriosclerosis a life prolonging, adaptive process?

H Kaunitz1

  • 1Department of Pathology, Columbia University, New York, NY 10032.

Mechanisms of Ageing and Development
|February 1, 1991
PubMed
Summary
This summary is machine-generated.

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Arteriosclerosis, a marker of arterial aging, generally correlates with a higher average age at death. However, this study suggests arteriosclerosis may be a life-prolonging adaptive process.

Area of Science:

  • Cardiovascular Science
  • Gerontology
  • Epidemiology

Background:

  • Arteriosclerosis is often equated with arterial aging and implicated in premature deaths.
  • Increasing life expectancy alongside rising arteriosclerosis rates necessitates further investigation.

Purpose of the Study:

  • To investigate the relationship between arteriosclerosis and the average age at death (AAD).
  • To determine if arteriosclerosis is primarily a degenerative process or a life-prolonging adaptation.

Main Methods:

  • Analysis of mortality data from the U.S.A. for individuals over 40.
  • Comparison of AAD in arteriosclerosis groups (ischemic heart disease, myocardial infarction, cerebrovascular disease) against a 'normal' control group.
  • Exclusion of external causes of death and malignancies to isolate arteriosclerosis effects.

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Main Results:

  • Arteriosclerosis groups generally exhibited significantly higher AADs compared to controls.
  • White males with ischemic heart disease and both sexes with myocardial infarction showed lower AADs than controls.
  • Despite lesion formation, arteriosclerosis appears to be a predominantly adaptive, life-prolonging process.

Conclusions:

  • Arteriosclerosis may represent an adaptive mechanism that contributes to longevity.
  • Further research is needed to fully understand the dual role of arteriosclerosis in aging and disease.