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The journal of nutrition, health & aging

, Volume 16, Issue 1, pp 85–88 | Cite as

Adverse systemic arterial function in patients with selenium deficiency

  • Y. -H. Chan
  • C. -W. Siu
  • K. -H. Yiu
  • H. -T. Chan
  • S. -W. Li
  • S. Tam
  • B. M. Cheung
  • C. -P. Lau
  • T. H. Lam
  • Hung-Fat TseEmail author
JNHA: Geriatric Science

Abstract

Background

Experimental studies have shown that selenium is involved in the synthesis of selenoproteins which might contribute to cardiovascular protection. However, the relationship between selenium deficiency and vascular function in clinical context remains unknown.

Objective

To investigate for any relationship between selenium deficiency and systemic arterial function in patients with high risk of vascular events.

Design

Cross-sectional study.

Setting and Participants

306 consecutive patients with high risk for cardiovascular events (coronary artery disease 35%, acute/recurrent ischemic stroke 40%, diabetes mellitus 54%) followed up at internal medicine outpatient clinics.

Measurements

Non-invasive brachial-ankle pulse wave velocity (PWV) was determined using vascular profiling system (VP-2000). Long-term intake of selenium was determined by a validated food frequency questionnaire.

Results

Mean daily selenium intake was 59.5 ± 52.1 mcg/day, and mean PWV was 1782.4 ± 418.4 cm/s. Patients with selenium intake <10th percentile had significantly higher PWV as compared to patients with intake 10th percentile (1968.2 ± 648.9 cm/s versus 1762.2 ± 381.6 cm/s, P=0.010). After adjusting for potential confounders including age, gender, history of hypertension, hyperlipidemia, diabetes and cardiovascular disease, smoking status, use of cardiovascular medications, waist-hip ratio, education/financial status, physical activity, calorie intake and intake of antioxidant vitamins, deficient selenium intake <10th percentile remained independently predictive of increased PWV by +363.4 cm/s [95% CI: 68.1 to 658.6, P=0.016, relative increase 21%].

Conclusions

Selenium deficiency is associated with adverse arterial function in patients with high risk for vascular events.

Key words

Selenium deficiency arterial stiffness vascular function nutrition secondary prevention 

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Copyright information

© Serdi and Springer Verlag France 2012

Authors and Affiliations

  • Y. -H. Chan
    • 1
  • C. -W. Siu
    • 2
    • 3
  • K. -H. Yiu
    • 2
  • H. -T. Chan
    • 2
  • S. -W. Li
    • 4
  • S. Tam
    • 5
  • B. M. Cheung
    • 6
  • C. -P. Lau
    • 2
  • T. H. Lam
    • 1
  • Hung-Fat Tse
    • 2
    • 3
    • 7
    Email author
  1. 1.School of Public HealthUniversity of Hong KongHong KongChina
  2. 2.Cardiology Division, Department of MedicineUniversity of Hong Kong, Queen Mary HospitalHong KongChina
  3. 3.Research Center of Heart, Brain, Hormone and Healthy AgeingUniversity of Hong KongHong KongChina
  4. 4.Department of MedicineTung Wah HospitalHong KongChina
  5. 5.Department of Clinical Biochemistry UnitQueen Mary HospitalHong KongChina
  6. 6.Division of Clinical Pharmacology, Department of MedicineUniversity of Hong Kong, Queen Mary HospitalHong KongChina
  7. 7.Cardiology Division, Department of MedicineThe University of Hong KongHong KongChina

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