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Research article
Koichiro Matsumura
Kansai Medical University
Corresponding Author
ORCiD: https://orcid.org/0000-0002-9089-3505
License:
This work is licensed under a CC BY 4.0 License. Read Full License
Background: The causes of anaemia in patients with end-stage renal disease include a relative deficiency in erythropoietin production and complex clinical conditions. We aimed to investigate the underlying mechanisms of anaemia in patients with end-stage renal disease who were undergoing maintenance dialysis by measuring erythrocyte creatine levels.
Methods: In a cross-sectional study, we evaluated 69 patients with end-stage renal disease who were receiving haemodialysis (n = 55) or peritoneal dialysis (n = 14). Erythrocyte creatine level, a quantitative marker of mean red blood cell (RBC) age, was measured.
Results: The mean RBC age was significantly shorter in the haemodialysis group than in the peritoneal dialysis group (47.7 days vs. 59.8 days, p<0.0001), although the haemoglobin levels were comparable between the groups. A Spearman correlation coefficient analysis revealed that shortened RBC age positively correlated with transferrin saturation (r = 0.54), ferritin level (r= 0.47), and haptoglobin level (r = 0.39) but inversely related with reticulocyte (r = −0.36), weekly doses of erythropoiesis-stimulating agents (ESAs; r = −0.62), erythropoietin resistance index (r = −0.64), and intradialytic ultrafiltration rate (r = −0.32).
Conclusions: Shortened RBC age was observed in patients who were receiving maintenance haemodialysis and was associated with iron deficiency, greater haptoglobin consumption, higher ESA requirements, and poor erythropoietin responsiveness, as well as with greater intradialytic fluid extraction.
Keywords
Anaemia, haemodialysis, peritoneal dialysis, red blood cell age
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CURRENT STATUS: Published
View the published article at BMC Nephrology.
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Submission checks complete
On 22 Sep, 2020
Editorial decision: Accept
On 22 Sep, 2020
Editor assigned
On 20 Sep, 2020
Editor invited
On 20 Sep, 2020
Version 3
Posted 31 Aug, 2020
No comments provided
Editor assigned
On 26 Aug, 2020
Submission checks complete
On 25 Aug, 2020
Editor invited
On 25 Aug, 2020
No comments provided
Editorial decision: Minor revision
On 20 Aug, 2020
Editor assigned
On 18 Aug, 2020
Submission checks complete
On 17 Aug, 2020
Editor invited
On 17 Aug, 2020
No comments provided
Review #2 received
Received 18 Jul, 2020
Editorial decision: Major revision
On 18 Jul, 2020
Reviewer #2 agreed
On 18 Jul, 2020
Review #1 received
Received 16 Jul, 2020
Reviewers invited
Invitations sent on 13 Jul, 2020
Reviewer #1 agreed
On 13 Jul, 2020
Editor assigned
On 02 Jul, 2020
Submission checks complete
On 01 Jul, 2020
Editor invited
On 01 Jul, 2020
First submitted
On 30 Jun, 2020
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Subject Areas
Urology & Nephrology
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See the published version of this preprint at BMC Nephrology.
This is a preprint, a preliminary version of a manuscript that has not completed peer review at a journal. Research Square does not conduct peer review prior to posting preprints. The posting of a preprint on this server should not be interpreted as an endorsement of its validity or suitability for dissemination as established information or for guiding clinical practice.
Learn more about In Review
Research article
Koichiro Matsumura
Kansai Medical University
Corresponding Author
ORCiD: https://orcid.org/0000-0002-9089-3505
Badges
Prescreen
This manuscript passed our Prescreen assessment
Complete author information
Appropriate declaration statements
Potential risks to human health
Prescreen
Peer Review Timeline
CURRENT STATUS: Published
View the published article at BMC Nephrology.
No community comments so far
Submission checks complete
On 22 Sep, 2020
Editorial decision: Accept
On 22 Sep, 2020
Editor assigned
On 20 Sep, 2020
Editor invited
On 20 Sep, 2020
Version 3
Posted 31 Aug, 2020
No comments provided
Editor assigned
On 26 Aug, 2020
Submission checks complete
On 25 Aug, 2020
Editor invited
On 25 Aug, 2020
No comments provided
Editorial decision: Minor revision
On 20 Aug, 2020
Editor assigned
On 18 Aug, 2020
Submission checks complete
On 17 Aug, 2020
Editor invited
On 17 Aug, 2020
No comments provided
Review #2 received
Received 18 Jul, 2020
Editorial decision: Major revision
On 18 Jul, 2020
Reviewer #2 agreed
On 18 Jul, 2020
Review #1 received
Received 16 Jul, 2020
Reviewers invited
Invitations sent on 13 Jul, 2020
Reviewer #1 agreed
On 13 Jul, 2020
Editor assigned
On 02 Jul, 2020
Submission checks complete
On 01 Jul, 2020
Editor invited
On 01 Jul, 2020
First submitted
On 30 Jun, 2020
Metrics
Comments: 0
PDF Downloads: ...
HTML Views: ...
Subject Areas
Urology & Nephrology
License:
This work is licensed under a CC BY 4.0 License. Read Full License
View the published article at BMC Nephrology.
Background: The causes of anaemia in patients with end-stage renal disease include a relative deficiency in erythropoietin production and complex clinical conditions. We aimed to investigate the underlying mechanisms of anaemia in patients with end-stage renal disease who were undergoing maintenance dialysis by measuring erythrocyte creatine levels.
Methods: In a cross-sectional study, we evaluated 69 patients with end-stage renal disease who were receiving haemodialysis (n = 55) or peritoneal dialysis (n = 14). Erythrocyte creatine level, a quantitative marker of mean red blood cell (RBC) age, was measured.
Results: The mean RBC age was significantly shorter in the haemodialysis group than in the peritoneal dialysis group (47.7 days vs. 59.8 days, p<0.0001), although the haemoglobin levels were comparable between the groups. A Spearman correlation coefficient analysis revealed that shortened RBC age positively correlated with transferrin saturation (r = 0.54), ferritin level (r= 0.47), and haptoglobin level (r = 0.39) but inversely related with reticulocyte (r = −0.36), weekly doses of erythropoiesis-stimulating agents (ESAs; r = −0.62), erythropoietin resistance index (r = −0.64), and intradialytic ultrafiltration rate (r = −0.32).
Conclusions: Shortened RBC age was observed in patients who were receiving maintenance haemodialysis and was associated with iron deficiency, greater haptoglobin consumption, higher ESA requirements, and poor erythropoietin responsiveness, as well as with greater intradialytic fluid extraction.
Figure 1
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