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Rhesus positivity and low high-density lipoprotein cholesterol: a new link?

Mehmet Kanbay1, Aylin Yildirir, Taner Ulus

  • 1Department of Internal Medicine, Department of Cardiology, Baskent University Faculty of Medicine, 35. Sokak, 81/5, Bahcelievler, Ankara 06490, Turkey. drkanbay@yahoo.com

Asian Cardiovascular & Thoracic Annals
|March 23, 2006
PubMed

Insights

Rhesus positivity is linked to lower high-density lipoprotein cholesterol levels in patients with multivessel coronary artery disease. This finding is significant for understanding cardiovascular disease risk factors.

Area of Science:

  • Cardiovascular Medicine
  • Clinical Biochemistry
  • Genetics

Background:

  • Coronary artery disease (CAD) is a major global health concern.
  • Lipid profiles, particularly high-density lipoprotein cholesterol (HDL-C), are critical indicators of cardiovascular risk.
  • The influence of blood groups on CAD and lipid profiles requires further investigation, especially in specific populations.

Purpose of the Study:

  • To examine the association between ABO and Rh blood groups and lipid profiles.
  • To investigate these associations specifically in patients with established multivessel coronary artery disease (MVD).
  • To explore these relationships in a population characterized by low high-density lipoprotein cholesterol (HDL-C) levels.

Main Methods:

  • Retrospective analysis of 978 patients who underwent coronary bypass surgery for MVD.
  • Data collection included patient demographics, coronary risk factors (diabetes, hypertension, smoking, obesity), and serum lipid profiles (total cholesterol, LDL-C, HDL-C, triglycerides).
  • Statistical comparison of lipid profiles and risk factors between different ABO and Rh blood groups.

Main Results:

  • No significant differences in risk factors or lipid profiles were observed among ABO blood types.
  • Rh-negative patients exhibited significantly higher HDL-C levels (46.9 +/- 9.9 mg/dL) compared to Rh-positive patients (41.6 +/- 10.4 mg/dL; p=0.001).
  • Rh-negative patients also had a lower total cholesterol/HDL-C ratio (4.8 +/- 1.3) than Rh-positive patients (5.2 +/- 1.6; p=0.029).

Conclusions:

  • Rhesus (Rh) blood group positivity is significantly associated with lower levels of high-density lipoprotein cholesterol in patients with multivessel coronary artery disease.
  • The findings suggest a potential link between Rh factor and dyslipidemia in the context of established cardiovascular disease.
  • Further research is warranted to elucidate the underlying mechanisms connecting Rh blood group and cardiovascular risk markers.

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