Prothrombotic markers in asymptomatic dyslipidemic subjects

Abstract

The aim of this study was to evaluate the plasma levels of prothrombotic markers--von Willebrand factor (vWF), plasminogen activator inhibitor-1 (PAI-1), tissue plasminogen activator (t-PA)--in asymptomatic subjects with dyslipidemia. Asymptomatic subjects with dyslipidemia and their relatives (n = 234) were assessed for lipids and prothrombotic markers. Individuals were divided into four dyslipidemic phenotypes (DLP) according to apolipoprotein B (apoB) and triglycerides (TG): DLP1 (n = 58, apoB < 1.2 g/l and TG < 1.5 mmol/l), DLP2 (n = 47, apoB < 1.2 g/l and TG ≥ 1.5 mmol/l), DLP3 (n = 31, apoB ≥ 1.2 g/l and TG < 1.5 mmol/l) and DLP4 (n = 98, apoB ≥ 1.2 g/l and TG ≥ 1.5 mmol/l). Associations between prothrombotic markers and risk factors for atherosclerosis, markers of insulin resistance, and the intima-media thickness of the common carotid artery (IMT) were assessed too. Significant differences in PAI-1 between normolipidemic phenotype--DLP1 (62.5 (35.9-82.9) ng/ml) and hypertriglyceridemic phenotypes--DLP2 (82.2 (61.1-122.1) ng/ml, p < 0.01) and DLP4 (91.4 (63.5-111.8) ng/ml, p < 0.001) after adjustment for age, sex and body mass index, were found. Levels of t-PA were different only between DLP1 and DLP4 (1.9 (0.9-3.3) ng/ml vs. 5.3 (2.5-8.6) ng/ml, p < 0.05). There were no significant differences of vWF between DLPs. PAI-1 and t-PA correlated with lipid parameters, markers of insulin resistance, blood pressure and obesity. VWF was independently associated with IMT, which was increased in DLP4. Individuals with hypertriglyceridemic phenotypes showed increased levels of PAI-1 in comparison with normolipidemic subjects. The elevation of t-PA was presented only in patients with simultaneously elevated TG and apoB. The significant increase of IMT confirmed in the patients with DLP4 reveals individuals with the highest risk for atherosclerosis manifestation.

Associations between homocysteine metabolism related SNPs and carotid intima-media thickness: a Chinese sib pair study

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Influence of high cardiovascular risk in asymptomatic people on the duration and cost of sick leave: results of the ICARIA study

“…First, increased CVR may signify a broader general risk for common diseases, including non-CV-related illnesses, since higher CVR can indicate frailer individuals. This may be due to the fact that CVR is often associated with pro-inflammatory or pro-thrombotic states, 19,20 which are also known to contribute to a number of non-CV diseases (e.g. respiratory diseases, musculoskeletal pathology, or infectious diseases).…”

Prehypertension in dyslipidemic individuals; relationship to metabolic parameters and intima-media thickness

“…These markers of endothelial damage were used because we previously found significant differences in their levels between individual DLPs (ref. 18,19 ).…”