Clinical journal of the American Society of Nephrology : CJASN
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Metabolically healthy obesity (MHO) is a unique obesity phenotype that apparently protects people from the metabolic complications of obesity. The association between MHO phenotype and incident CKD is unclear. Thus, this study investigated the association between MHO phenotype and incident CKD. ⋯ MHO phenotype was not associated with higher risk of incident CKD.
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Clin J Am Soc Nephrol · Apr 2015
Randomized Controlled Trial Multicenter Study Comparative StudyNutritional vitamin D supplementation in dialysis: a randomized trial.
Vitamin D (25-hydroxyvitamin D; 25[OH]D) deficiency is common in patients initiating long-term hemodialysis, but the safety and efficacy of nutritional vitamin D supplementation in this population remain uncertain. ⋯ Oral ergocalciferol can increase 25(OH)D levels in incident hemodialysis patients without significant alterations in blood calcium, phosphate, or parathyroid hormone during a 12-week period.
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Clin J Am Soc Nephrol · Apr 2015
Multicenter Study Observational StudyProgression of pediatric CKD of nonglomerular origin in the CKiD cohort.
Congenital anomalies of the kidney and urinary tract and genetic disorders cause most cases of CKD in children. This study evaluated the relationships between baseline proteinuria and BP and longitudinal changes in GFR in children with these nonglomerular causes of CKD. ⋯ Baseline proteinuria and systolic BP levels are independently associated with CKD progression in children with nonglomerular CKD.
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Clin J Am Soc Nephrol · Apr 2015
Multicenter StudyN-terminal pro-B-type natriuretic peptide variability in stable dialysis patients.
Monitoring N-terminal pro-B-type natriuretic peptide (NT-proBNP) may be useful for assessing cardiovascular risk in dialysis patients. However, its biologic variation is unknown, hindering the accurate interpretation of serial concentrations. The aims of this prospective cohort study were to estimate the within- and between-person coefficients of variation of NT-proBNP in stable dialysis patients, and derive the critical difference between measurements needed to exclude biologic and analytic variation. ⋯ The between-person variation of NT-proBNP was large and markedly greater than within-person variation, indicating that NT-proBNP testing might better be applied in the dialysis population using a relative-change strategy. Serial NT-proBNP concentrations need to double or halve to confidently exclude change due to analytic and biologic variation alone.
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Clin J Am Soc Nephrol · Apr 2015
Multicenter StudyAmbulatory recording of wave reflections and arterial stiffness during intra- and interdialytic periods in patients treated with dialysis.
Wave reflections and arterial stiffness are independent cardiovascular risk factors in ESRD. Previous studies in this population included only static recordings before and after dialysis. This study investigated the variation of these indices during intra- and interdialytic intervals and examined demographic, clinical, and hemodynamic variables related to arterial function in patients undergoing hemodialysis. ⋯ This study showed a gradual interdialytic increase in AIx, whereas PWV was only slightly elevated during Day 2. Future studies are needed to elucidate the value of these ambulatory measures for cardiovascular risk prediction in ESRD.