Uric acid is the major determinant of absorbance in spent dialysate allowing spectrophotometric evaluation of dialysis dose (Articolo in rivista)

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  • Uric acid is the major determinant of absorbance in spent dialysate allowing spectrophotometric evaluation of dialysis dose (Articolo in rivista) (literal)
Anno
  • 2013-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1007/s40620-013-0003-6 (literal)
Alternative label
  • Carlo Donadio o Dario Calia o Silvia Ghimenti o Massimo Onor o Elisa Colombini o Roger Fuoco o Fabio Di Francesco (2013)
    Uric acid is the major determinant of absorbance in spent dialysate allowing spectrophotometric evaluation of dialysis dose
    in JN. Journal of Nephrology (Milano, 1992); Springer, Milano-Heidelberg-New York (Italia)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Carlo Donadio o Dario Calia o Silvia Ghimenti o Massimo Onor o Elisa Colombini o Roger Fuoco o Fabio Di Francesco (literal)
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Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • University of Pisa, Pisa, Italy (literal)
Titolo
  • Uric acid is the major determinant of absorbance in spent dialysate allowing spectrophotometric evaluation of dialysis dose (literal)
Abstract
  • Background Ultraviolet (UV) absorbance of spent dialysate has been proposed as a method for monitoring hemodialysis efficiency. The contribution of the various uremic toxins to UV absorption, however, needs clarifying. Methods Urea, creatinine and uric acid were measured in blood and dialysate before and during dialysis in 22 maintenance hemodialysis patients. Absorbance was measured in dialysate. Results High-performance liquid chromatography (HPLC) analyses of dialysate revealed uric acid as the predominant peak. Spent dialysate absorbance decreased, during dialysis, similarly to serumand dialysate urea, creatinine and uric acid. Dialysate urea correlated closely with absorbance, though urea did not contribute to absorbance, which was determined mostly by uric acid. Uric acid and urea removals were very similar. The spectrophotometric Kt/V correlated with spKt/V urea, with slight but significant differences between the two measurements. Conclusions UV absorbance is determined mostly by uric acid. Absorbance measurements seem suitable as a method for monitoring dialysis efficiency. (literal)
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