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10.1371/journal.pone.0143813 http://scihub22266oqcxt.onion/10.1371/journal.pone.0143813 C4668015!4668015!26629900     free     free     free Warning: file_get_contents(https://eutils.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&id=26629900&cmd=llinks): Failed to open stream: HTTP request failed! HTTP/1.1 429 Too Many Requests in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 215 Deprecated: Implicit conversion from float 209.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Deprecated: Implicit conversion from float 209.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Deprecated: Implicit conversion from float 209.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Deprecated: Implicit conversion from float 209.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Deprecated: Implicit conversion from float 209.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Deprecated: Implicit conversion from float 209.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Deprecated: Implicit conversion from float 243.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Deprecated: Implicit conversion from float 243.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534       PLoS+One 2015 ; 10 (12): ä Nephropedia Template TP {{tp|p=26629900|t=2015. Plasma Levels of Middle Molecules to Estimate Residual Kidney Function in Haemodialysis without Urine Collection |pdf=|usr=}}{{26629900}} gab.com Text Plasma Levels of Middle Molecules to Estimate Residual Kidney Function in Haemodialysis without Urine Collection JO: PLoS One http://www.kidney.de/pget.php?&tw=1&pmid=26629900 #FOAvip Background: Residual Kidney Function (RKF) is associated with survival benefits in haemodialysis (HD) but is difficult to measure without urine collection. Middle molecules such as Cystatin C and ?2-microglobulin accumulate in renal disease and plasma levels have been used to estimate kidney function early in this condition. We investigated their use to estimate RKF in patients on HD. Design: Cystatin C, ?2-microglobulin, urea and creatinine levels were studied in patients on incremental high-flux HD or hemodiafiltration(HDF). Over sequential HD sessions, blood was sampled pre- and post-session 1 and pre-session 2, for estimation of these parameters. Urine was collected during the whole interdialytic interval, for estimation of residual GFR (GFRResidual = mean of urea and creatinine clearance). The relationships of plasma Cystatin C and ?2-microglobulin levels to GFRResidual and urea clearance were determined. Results: Of the 341 patients studied, 64% had urine output>100ml/day, 32.6% were on high-flux HD and 67.4% on HDF. Parameters most closely correlated with GFRResidual were 1/?2-micoglobulin (r2 0.67) and 1/Cystatin C (r2 0.50). Both these relationships were weaker at low GFRResidual. The best regression model for GFRResidual, explaining 67% of the variation, was: GFRResidual=160.3?(1?2m)?4.2 Where ?2m is the pre-dialysis ?2 microglobulin concentration (mg/L). This model was validated in a separate cohort of 50 patients using Bland-Altman analysis. Areas under the curve in Receiver Operating Characteristic analysis aimed at identifying subjects with urea clearance?2ml/min/1.73m2 was 0.91 for ?2-microglobulin and 0.86 for Cystatin C. A plasma ?2-microglobulin cut-off of ?19.2mg/L allowed identification of patients with urea clearance ?2ml/min/1.73m2 with 90% specificity and 65% sensitivity. Conclusion: Plasma pre-dialysis ?2-microglobulin levels can provide estimates of RKF which may have clinical utility and appear superior to cystatin C. Use of cut-off levels to identify patients with RKF may provide a simple way to individualise dialysis dose based on RKF. Twit Text FOAVip Plasma Levels of Middle Molecules to Estimate Residual Kidney Function in Haemodialysis without Urine Collection ????PLoS One http://www.kidney.de/pget.php?&tw=1&pmid=26629900 #FOAvip Twit Text # Free Paper on # # # # # LINK http://www.kidney.de/pget.php?&tw=1&pmid=26629900 #FOAvip English Wikipedia <ref>{{Cite pmid|26629900}}</ref> Plasma Levels of Middle Molecules to Estimate Residual Kidney Function in Haemodialysis without Urine Collection #MMPMID26629900 Vilar E; Boltiador C; Wong J; Viljoen A; Machado A; Uthayakumar A; Farrington K PLoS One 2015[]; 10 (12): ä PMID26629900show ga Background: Residual Kidney Function (RKF) is associated with survival benefits in haemodialysis (HD) but is difficult to measure without urine collection. Middle molecules such as Cystatin C and ?2-microglobulin accumulate in renal disease and plasma levels have been used to estimate kidney function early in this condition. We investigated their use to estimate RKF in patients on HD. Design: Cystatin C, ?2-microglobulin, urea and creatinine levels were studied in patients on incremental high-flux HD or hemodiafiltration(HDF). Over sequential HD sessions, blood was sampled pre- and post-session 1 and pre-session 2, for estimation of these parameters. Urine was collected during the whole interdialytic interval, for estimation of residual GFR (GFRResidual = mean of urea and creatinine clearance). The relationships of plasma Cystatin C and ?2-microglobulin levels to GFRResidual and urea clearance were determined. Results: Of the 341 patients studied, 64% had urine output>100ml/day, 32.6% were on high-flux HD and 67.4% on HDF. Parameters most closely correlated with GFRResidual were 1/?2-micoglobulin (r2 0.67) and 1/Cystatin C (r2 0.50). Both these relationships were weaker at low GFRResidual. The best regression model for GFRResidual, explaining 67% of the variation, was: GFRResidual=160.3?(1?2m)?4.2 Where ?2m is the pre-dialysis ?2 microglobulin concentration (mg/L). This model was validated in a separate cohort of 50 patients using Bland-Altman analysis. Areas under the curve in Receiver Operating Characteristic analysis aimed at identifying subjects with urea clearance?2ml/min/1.73m2 was 0.91 for ?2-microglobulin and 0.86 for Cystatin C. A plasma ?2-microglobulin cut-off of ?19.2mg/L allowed identification of patients with urea clearance ?2ml/min/1.73m2 with 90% specificity and 65% sensitivity. Conclusion: Plasma pre-dialysis ?2-microglobulin levels can provide estimates of RKF which may have clinical utility and appear superior to cystatin C. Use of cut-off levels to identify patients with RKF may provide a simple way to individualise dialysis dose based on RKF. äPlasma Levels of Middle Molecules to Estimate Residual Kidney Function(epmc).pdf DeepDyve Pubget Overpricing