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    Human plasma gelsolin (pGSN) is an actin-binding protein that is secreted into the extracellular fluid, with the skeletal muscle and myocardial tissues being its major source. Depletion of pGSN has been shown to be related to a variety of inflammatory and clinical conditions. pGSN levels were prospectively determined in prevalent maintenance hemodialysis (HD) patients from 3 U.S. dialysis centers. Demographics (age, time since dialysis initiation, race, gender, body height and weight, comorbidities), inflammatory markers (C reactive protein, CRP; interleukin 6, IL-6), free triiodothyronine (fT3), and routine laboratory parameters were obtained. We performed Kaplan-Meier and Cox proportional hazard survival analysis for all-cause and cardiovascular mortality, and recurrent event survival analysis for hospitalization. We studied 153 patients; mean age was 60.5 ± 14.7; 52% were males. The mean pGSN level was 6,617 ± 1,789 mU/ml. In univariate analysis, pGSN was positively correlated with body mass index (r = 0.2, p = 0.01), pre-HD serum albumin (r = 0.247, p = 0.002), and pre-HD serum creatinine (r = 0.381, p < 0.001), and inversely with age (r = -0.286, p < 0.001), CRP (r = -0.311, p < 0.001), and IL-6 (r = -0.317, p < 0.001). In the adjusted analysis, the associations with CRP and creatinine were retained. pGSN levels tended to be lower in patients who died (p = 0.08). There was no association with all-cause or cardiovascular mortality, or all-cause hospitalization. Of note, fT3 was lower in patients who died (p = 0.001). Even though pGSN was inversely correlated with age, CRP and IL-6, suggesting that inflammation may influence pGSN, lower pGSN levels were not associated with hospitalization, all-cause and cardio-vascular mortality in this patient population. © 2017 S. Karger AG, Basel.

    Citation

    Cesar Flores Gama, Laura M Rosales, Georges Ouellet, Yanna Dou, Stephan Thijssen, Len Usvyat, Hanjie Zhang, Viktoriya Kuntsevich, Nathan W Levin, Peter Kotanko. Plasma Gelsolin and Its Association with Mortality and Hospitalization in Chronic Hemodialysis Patients. Blood purification. 2017;43(1-3):210-217

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    PMID: 28114138

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