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[Changes in the level of thrombomodulin with aging]
S Komatsumoto1, A Onoda, M Nara
1Department of Internal Medicine, Ashikaga Red Cross Hospital.
Summary
Plasma thrombomodulin (TM) levels increase with age, potentially indicating age-related endothelial damage in healthy men. Higher TM concentrations in older individuals suggest vascular health changes over time.
Area of Science:
- Biochemistry
- Gerontology
- Vascular Biology
Context:
- Thrombomodulin (TM) is a key thrombin receptor on endothelial cells.
- Endothelial cell damage leads to TM degradation and release into circulation.
- Aging is associated with various physiological changes, including potential vascular alterations.
Purpose:
- To investigate the correlation between plasma thrombomodulin (TM) levels and chronological age in healthy men.
- To determine if TM levels serve as a biomarker for age-related endothelial damage.
Summary:
- This study measured plasma TM levels in 93 healthy men (aged 22-81) without comorbidities.
- A significant positive correlation (r = 0.647, p < 0.01) was found between TM levels and age, described by Y = 0.176X + 10.379.
- Plasma TM concentrations were significantly higher in older subjects compared to younger ones, suggesting age-related endothelial damage.
Impact:
- Elevated plasma TM levels may serve as a sensitive indicator of endothelial dysfunction associated with the aging process.
- Findings contribute to understanding vascular aging and identifying potential biomarkers for endothelial health.
- This research highlights the link between aging, endothelial integrity, and circulating TM levels.