Plasma visfatin/nicotinamide phosphoribosyltransferase (visfatin/NAMPT) concentration is not related to kidney function in elderly subjects
AbstractStudies assessing plasma visfatin/nicotinamide phosphoribosyltransferase (NAMPT) concentrations in chronic kidney disease with the ELISA method are restricted mainly to subjects with end-stage kidney disease. Therefore, little is known about to what extent glomerular filtration rate (GFR) affects the plasma levels of visfatin/NAMPT. The aim of this study was to assess the relations between circulating visfatin/NAMPT levels and estimated GFR (eGFR), independently of potential confounders such as inflammation, nutritional status, and insulin resistance in the elderly population.The analysis included 3023 elderly subjects (1076 with impaired kidney excretory function – eGFR <60 mL/min/1.73 mSimilar plasma visfatin/NAMPT levels were found in subjects with eGFR ≥60 and <60 mL/min/1.73 mThe results of our study suggest that plasma visfatin/NAMPT levels are not affected by impaired kidney excretory function in elderly subjects.