Journal
THROMBOSIS RESEARCH
Volume 136, Issue 2, Pages 415-421Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.thromres.2015.05.033
Keywords
Fibrinolysis; PAI-1; Clot lysis time; Body composition
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Funding
- Medical Research Council of South Africa
- South African National Research Foundation (NRF) [2069139, FA2006040700010, FA2006041100003]
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Introduction: Preliminary evidence indicates that the association of fibrinolytic potential, measured as clot lysis time (CLT), with body composition may differ from that of plasminogen activator inhibitor type-1 (PAI-1). We therefore investigated the association between fibrinolytic markers (plasminogen activator inhibitor type-1 activity (PAI-1(act)) and CLT) and body composition using detailed body composition analyses. Materials and methods: Data from 1288 Africans were cross-sectionally analyzed. Body composition analysis included BMI, waist circumference (WC); waist to height ratio (WHtR), skinfolds and body fat percentage measured with air-displacement plethysmography and bioelectrical impedance analysis. Results: PAI-1(act) and CLT were significantly higher in women than in men, despite adjustment for differences in body composition. PAI-1(act) and CLT showed similar linear positive relationships with body composition (BMI, WC, WHtR, skinfolds) in men. In women CLT also showed a linear relationship with body composition, while PAI-1(act) levels plateaued at higher BMI and did not differ across skinfold categories. PAI-1(act) showed stronger correlations with body composition markers in men than it did in women, while no sex differences existed for CLT. PAI-1(act) associated more strongly with central obesity, while CLT associated with total body fat. Conclusions: Observed differences may be related to differences in adipose tissue type, distribution and sequence of accumulation between sexes. PAI-1(act) is strongly influenced by accumulation of visceral adipose tissue, whereas CLT is associated with obesity independent of type and sequence of body fat accumulation in this African adult study population. (C) 2015 Elsevier Ltd. All rights reserved.
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