2021-09-062021-09-062002-05Özarda, Y. vd. (2002). "Changes of plasma free choline and choline-containing compounds' concentrations and choline loss during hemodialysis in ESRD patients". Clinical Biochemistry , 35(3), 233-239.0009-9120https://doi.org/10.1016/S0009-9120(02)00298-9https://www.sciencedirect.com/science/article/pii/S0009912002002989http://hdl.handle.net/11452/21689Objectives: This study was undertaken to determine the changes in plasma free choline and choline-containing compounds in end stage renal disease (ESRD) and to determine if they were lost into the dialysate during hemodialysis. Design and methods: Plasma and dialysate free choline, phosphocholine and phospholipid, phosphatidylcholine-, sphingomyelin-bound choline were measured before, during and after hemodialysis. Results: Plasma free and bound choline concentrations (mean +/- standard error of the mean) were 12.9 +/- 0.6 and 2697 +/- 57 muM or 37.3 +/- 0.9 and 2792 +/- 98 muM in controls or in ESRD patients, respectively. Free choline concentrations were correlated (r = 0.598 p < 0.001) with the time the patients were subjected to hemodialysis. Plasma free choline and phosphocholine concentrations a-re decreased by a total of -8.1 +/- 0.6 μmol/L and -88 +/- 8 μmol/L, respectively: phospholipid- phosphatidylcholine- and sphingomyelin-bound choline are increased, during hemodialysis. Patients lost about 350 μmoles of choline into the dialysate during hemodialysis. Conclusion: Plasma free choline concentrations are elevated in ESRD. and a considerable amount of choline is lost into the hemodialysate.eninfo:eu-repo/semantics/closedAccessCholineSphingomyelinPhosphocholinePhosphatidylcholineEnd stage renal diseaseHemodialysisRat Corpus StriatumAcetylcholine-releaseParenteral-nutritionTyrosine-hydroxylaseBrain phospholipidsDeficiencyCytidineNeuronsLiverArticle0001764922000112-s2.0-003601735523323935312074832Medical laboratory technologyCholine; Dimethylglycine; Betaines