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Year : 2016  |  Volume : 7  |  Issue : 4  |  Page : 117-123

Thrombin generation and endothelial dysfunctional markers in different stages of nephrotic syndrome

1 Physiology Department, College of Medicine, Alqassim University, Buraidah; King Saud University, Riyadh, Saudi Arabia
2 College of Medicine, Center of Excellence in Thrombosis and Hemostasis, King Saud University, Riyadh, Saudi Arabia
3 Physiology Department, College of Medicine, King Saud University, Riyadh, Saudi Arabia
4 Hematology, Alfaisal University, Riyadh; Hematology, King Faisal Specialist Hospital, Riyadh, Saudi Arabia
5 Department of Medicine, King Saud University, King Salman Chair for Kidney Disease Research, Riyadh, Saudi Arabia

Correspondence Address:
Dr. Ashwag S Alsharidah
Physiology Department, College of Medicine, Alqassim University, Buraidah 51491, Al-Qassim
Saudi Arabia
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/1658-5127.198509

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Objectives: Venous thromboembolism is an important and potentially life-threatening complication of nephrotic syndrome (NS). This study aims to evaluate the functional test of thrombin generation (TG) in different stages of NS; determine its relation with the coagulation screening tests (prothrombin time [PT] and activated partial thromboplastin time), hemostatic activation markers (thrombin–antithrombin complex [TAT] and prothrombin fragment 1+2 [PF1+2]), and von Willebrand factor (vWF) and its proteolytic enzyme ADAMTS-13; and determine the correlation between TG and NS severity, as reflected by the levels of proteinuria and albumin. Materials and Methods: This case–control cross-sectional study included 125 patients (n = 40, nephrotic range proteinuria; n = 45, NS; n = 40, remission) and 80 controls. Calibrated automated thrombogram assay (endogenous thrombin potential [ETP]) was performed to determine TG. TAT, PF1+2, vWF, and ADAMTS-13 were measured using enzyme-linked immunosorbent assay. Results: TG (ETP), TAT, PF1+2, and vWF levels were significantly higher in all of the patient groups (P < 0.0001) than in the control group. ADAMTS-13 levels were significantly lower in the NS group (P < 0.0001) than in the control group. Conclusion: Our findings confirm activation of the coagulation pathway in nephrotic patients. However, the degree of hypercoagulopathy (especially TG [ETP]) is positively correlated with proteinuria. Proteinuria could be considered an indirect indicator of the highest risk of thrombotic disease in patients with NS.

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