Adverse systemic arterial function in patients with selenium deficiency.

Area of Science:

• Cardiovascular research
• Nutritional science
• Vascular biology

Background:

• Selenium is crucial for selenoprotein synthesis, potentially offering cardiovascular protection.
• The clinical impact of selenium deficiency on vascular function remains unclear.

Purpose of the Study:

• To examine the association between selenium deficiency and systemic arterial function.
• Focus on patients at high risk for vascular events.

Main Methods:

• Cross-sectional study of 306 high-risk patients.
• Assessed arterial stiffness using brachial-ankle pulse wave velocity (PWV).
• Quantified long-term selenium intake via food frequency questionnaires.

Main Results:

• Patients with selenium intake below the 10th percentile exhibited significantly higher PWV.
• Deficient selenium intake independently predicted a 21% increase in PWV after adjusting for confounders.
• This association remained significant even after controlling for numerous cardiovascular risk factors and lifestyle variables.

Conclusions:

• Selenium deficiency is associated with impaired arterial function.
• Findings suggest a clinical link between low selenium status and adverse vascular health in at-risk populations.