alexa Kidney function and multiple hemostatic markers: cross sectional associations in the multi-ethnic study of atherosclerosis.
Medicine

Medicine

Internal Medicine: Open Access

Author(s): Dubin R, Cushman M, Folsom AR, Fried LF, Palmas W,

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Abstract BACKGROUND: Defined as estimated glomerular filtration rate (eGFR) < 60 ml/min/1.73 m2, chronic kidney disease (CKD) is strongly and independently associated with cardiovascular and overall mortality. We hypothesized that reduced kidney function would be characterized by abnormalities of hemostasis. METHODS: We tested cross-sectional associations between (eGFR) and multiple hemostatic markers among 6751 participants representing a broad spectrum of kidney function in the Multi-Ethnic Study of Atherosclerosis (MESA). Kidney function was measured using cystatin C (eGFRcys) or creatinine, using CKD Epidemiology Collaboration (eGFRcr). Hemostatic markers included soluble thrombomodulin (sTM), soluble tissue factor (sTF), D-Dimer, von Willebrand factor (vWF), factor VIII, plasmin-antiplasmin complex (PAP), tissue factor pathway inhibitor (TFPI), plasminogen activator inhibitor-1 (PAI-1), and fibrinogen. Associations were tested using multivariable linear regression with adjustment for demographics and comorbidities. RESULTS: In comparison to persons with eGFRcys >90 ml/min/1.73 m2, subjects with eGFRcys < 60 ml/min/1.73 m2 had adjusted levels of sTM, sTF, D-Dimer, PAP, Factor VIII, TFPI, vWF and fibrinogen that were respectively 86\%, 68\%, 44\%, 22\%, 17\%, 15\%, 12\% and 6\% higher. Subjects with eGFRcys 60-90 ml/min/1.73 m2 had adjusted levels that were respectively 16\%, 14\%, 12\%, 6\%, 6\%, 6\%, 11\% and 4\% higher (p < 0.05 for all). Percent differences were not significantly different when groups were categorized by eGFRcr. CONCLUSIONS: Throughout a broad spectrum of kidney function, lower eGFR was associated with higher levels of hemostatic markers. Dysregulation of hemostasis may be a mechanism by which reduced kidney function promotes higher cardiovascular risk.
This article was published in BMC Nephrol and referenced in Internal Medicine: Open Access

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