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[Correlation between age, arteriosclerosis and elastinolytic activity of human aorta wall]
Comptes Rendus Hebdomadaires Des Seances De L'Academie Des Sciences. Serie D: Sciences Naturelles
|June 14, 1976
Summary
Human aortic elastase activity increases with age and atherosclerosis, suggesting it drives age-related elastic fiber damage in arteries.
Area of Science:
- Biochemistry
- Cardiovascular Biology
- Aging Research
Background:
- Elastolytic proteases, such as elastase, play a role in tissue remodeling.
- The human aortic wall contains elastolytic enzymes.
- Age and atherosclerosis are known risk factors for cardiovascular disease.
Purpose of the Study:
- To investigate the correlation between human aortic elastase activity and the degree of atherosclerosis and age.
- To understand the factors influencing aortic elastase levels in humans.
Main Methods:
- Isolation of elastolytic protease from human aortic wall.
- Assay of human aortic elastase activity.
- Correlation analysis with age and degree of atherosclerosis using histochemical techniques.
Main Results:
- A positive correlation was found between human aortic elastase activity, age, and the degree of atherosclerosis.
- Age and atherosclerosis independently and additively influence aortic elastase levels.
- Evidence suggests increased synthesis and/or liberation of aortic elastase with age, accelerated by arteriosclerosis.
Conclusions:
- Increased elastolytic activity, driven by age and atherosclerosis, is likely responsible for the fragmentation and lysis of elastic fibers in the aorta.
- Human aortic elastase is a key factor in age-related arterial wall changes.
- Therapeutic strategies targeting elastase may be beneficial in managing atherosclerosis.