Triglyceride level is associated with wave reflections and arterial stiffness in apparently healthy middle-aged men

Area of Science:

• Cardiovascular Physiology
• Metabolic Health
• Vascular Biology

Background:

• Arterial stiffness and wave reflections are key predictors of cardiovascular risk.
• Serum triglyceride levels are a common metabolic parameter with implications for cardiovascular health.
• Understanding the interplay between triglycerides and vascular function is crucial for risk assessment.

Purpose of the Study:

• To examine the association between serum triglyceride levels and measures of arterial stiffness and wave reflections in healthy adults.
• To determine if this association differs between men and women.
• To investigate the independence of this relationship from other cardiovascular risk factors.

Main Methods:

• A cross-sectional study involving 213 healthy adults (141 men, 72 women) without prior cardiovascular disease or medication use, excluding smokers.
• Measurements included central (aortic) augmentation index (AIx) as a composite measure of arterial stiffness and wave reflections.
• Fasting lipid profiles (including triglycerides) and the 10-year Framingham Risk Score (FRS) were assessed.

Main Results:

• Men exhibited higher serum triglyceride levels and lower AIx compared to women.
• Serum triglyceride levels were significantly associated with FRS and AIx in both genders.
• In men, triglyceride levels remained associated with AIx independently of other risk factors; this association was not observed in women.

Conclusions:

• Serum triglyceride levels are linked to arterial stiffness and wave reflections in healthy men, suggesting a role in cardiovascular risk.
• The relationship between triglycerides and vascular function in women requires further investigation.
• These findings highlight potential sex-specific differences in the impact of triglycerides on cardiovascular health.