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Cardiology. 1999;92(3):151-5.

Plasma apolipoprotein B levels predict platelet-dependent thrombosis in patients with coronary artery disease.

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Preventive & Rehabilitative Cardiac Center and Atherosclerosis Research Center, Cedars-Sinai Burns and Allen Research Institute, Department of Medicine, Division of Cardiology, Cedars-Sinai Medical Center and UCLA School of Medicine, Los Angele, CA, USA.


Elevated plasma apolipoprotein B is a known risk factor for atherosclerotic coronary artery disease (CAD), however its relationship to arterial thrombosis is unexplored. We prospectively assessed apolipoprotein B and platelet-dependent thrombosis (PDT) in 42 CAD patients (37 men, 5 women, mean age 68 +/- 9 years), by exposing porcine aortic media to their flowing unanticoagulated venous blood for 5 min using an ex vivo perfusion (Badimon) chamber. PDT was significantly correlated with apolipoprotein B (r = 0.41, p = 0.009), intracellular magnesium levels (r = -0.46, p = 0.003) fasting blood glucose (r = 0.47, p = 0.002), and total cholesterol (r = 0.43, p = 0.006). PDT did not correlate with serum total cholesterol, low-density lipoprotein cholesterol, high-density lipoprotein cholesterol, apolipoprotein A-I or fibrinogen levels. These findings suggest that the positive relationship of elevated apolipoprotein B to CAD may be, in part, related to its prothrombotic effects.

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