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Platelet activation in subjects with subclinical hypothyroidism

Erkan Coban1, Gokhan Yazicioglu, Mustafa Ozdogan

  • 1Department of Internal Medicine, Akdeniz University Faculty of Medicine, Antalya, Turkey. ecoban@akdeniz.edu.tr

Medical Science Monitor : International Medical Journal of Experimental and Clinical Research
|March 30, 2007
PubMed

Insights

Subclinical hypothyroidism is linked to higher mean platelet volume (MPV), indicating increased platelet activation. This finding suggests a potential increased risk for atherothrombotic complications in individuals with subclinical hypothyroidism.

Area of Science:

  • Cardiology
  • Endocrinology
  • Hematology

Background:

  • Coronary heart disease (CHD) is a leading cause of mortality globally.
  • Platelet activation and aggregation are key in CHD pathophysiology.
  • Mean platelet volume (MPV) is an emerging risk factor for atherothrombosis.

Purpose of the Study:

  • To compare MPV levels in subclinical hypothyroidism versus euthyroid subjects.
  • To investigate the relationship between MPV and subclinical hypothyroidism.

Main Methods:

  • Cross-sectional study design.
  • Inclusion of 36 subclinical hypothyroidic and 20 euthyroidic subjects.
  • Matching of subjects by age, gender, and body mass index.

Main Results:

  • No significant differences in metabolic parameters or platelet counts between groups.
  • Significantly higher MPV in the subclinical hypothyroidic group (9.9±0.9 fl) compared to euthyroid controls (9.2±0.7 fl).
  • Positive correlation between anti-TPO levels and MPV in the subclinical hypothyroidic group.

Conclusions:

  • Subclinical hypothyroidism is associated with heightened platelet activation.
  • Increased platelet activity may contribute to atherothrombotic risk in subclinical hypothyroidism.
Abstract

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