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The relationship between tissue RBC n-3 fatty acids and pulse wave velocity
Hiroto Nishizawa1, Kei Hamazaki, Tomohito Hamazaki
1Division of Clinical Application, Department of Clinical Sciences, Institute of Natural Medicine, University of Toyama, 2630 Sugitani, Toyama-City, Toyama 9300194, Japan.
In Vivo (Athens, Greece)
|April 26, 2006
Summary
Long-term intake of omega-3 fatty acids, particularly eicosapentaenoic acid, may benefit vascular health. This study found an inverse correlation between eicosapentaenoic acid levels and pulse wave velocity in healthy men.
Area of Science:
- Cardiovascular Health
- Nutritional Science
- Vascular Biology
Background:
- Omega-3 fatty acids are known to reduce coronary heart disease mortality.
- Limited research exists on omega-3s' impact on arteriosclerosis in free-living populations.
- Arteriosclerosis assessment often involves measuring pulse wave velocity.
Purpose of the Study:
- To investigate the association between red blood cell (RBC) n-3 fatty acid levels and arteriosclerosis markers.
- To determine if eicosapentaenoic acid (EPA) concentrations correlate with pulse wave velocity (PWV) in healthy males.
Main Methods:
- Measured pulse wave velocity (baPWV) in 161 healthy male subjects.
- Analyzed red blood cell (RBC) phospholipid fatty acid composition.
- Utilized statistical adjustments for age, pulse rate, diastolic pressure, BMI, smoking, diabetes, and cholesterol ratios.
Main Results:
- A significant inverse correlation was observed between RBC eicosapentaenoic acid (EPA) concentrations and baPWV.
- This association remained significant after adjusting for multiple cardiovascular risk factors.
- Higher EPA levels were linked to lower baPWV, suggesting better vascular function.
Conclusions:
- Long-term n-3 fatty acid intake, specifically EPA, appears beneficial for the vascular system.
- Omega-3s may play a role in mitigating arteriosclerosis progression.
- Further research is warranted to confirm the direct impact of n-3s on arteriosclerosis.