Evidence map›Paper›PMID 33661286›Full record

ArticleNephrology, dialysis, transplantation : official publication of the European Dialysis and Transplant Association - European Renal Association2021

Protein carbamylation and chronic kidney disease progression in the Chronic Renal Insufficiency Cohort Study.

Sahir Kalim, Anders H Berg, Subbian Ananth Karumanchi, Ravi Thadhani, Andrew S Allegretti, Sagar Nigwekar, Sophia Zhao, Anand Srivastava, Dominic Raj, Rajat Deo and 7 more

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In one paragraph

Article in Nephrology, dialysis, transplantation : official publication of the European Dialysis and Transplant Association - European Renal Association, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed
2.8field-weighted citation impact, top 8% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

23 citing papers in PubMed, 36 citations in OpenAlex.

  1. Article
  2. Article
  3. A guide to uraemic toxicity.Nature reviews. Nephrology · 2026
    Review
  4. Article
  5. Article
  6. Article
  7. Elevated concentrations of methyl isocyanate and isocyanic acid in cigarette smoke.Environmental science and pollution research international · 2025
    Article
  8. Article
  9. Article
  10. Review
  11. Article
  12. Article
  13. Review
  14. Article
  15. Is Albumin Toxic to the Kidney?: It Depends.Clinical journal of the American Society of Nephrology : CJASN · 2023
    Article
  16. Review
  17. Article
  18. Article
  19. Article
  20. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

17 authors at 10 institutions in 1 country.

Sahir KalimDepartment of Medicine, Division of Nephrology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA.
Anders H BergDepartment of Pathology and Laboratory Medicine, Cedars-Sinai Medical Center, Los Angeles, CA, USA.
Subbian Ananth KarumanchiDepartment of Medicine, Cedars-Sinai Medical Center, Los Angeles, CA, USA.
Ravi ThadhaniDepartment of Medicine, Division of Nephrology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA.
Andrew S AllegrettiDepartment of Medicine, Division of Nephrology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA.
Sagar NigwekarDepartment of Medicine, Division of Nephrology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA.
Sophia ZhaoDepartment of Medicine, Division of Nephrology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA.
Anand SrivastavaDivision of Nephrology and Hypertension, Northwestern University Feinberg School of Medicine, Chicago, IL, USA.
Dominic RajDepartment of Medicine, Division of Renal Diseases and Hypertension, George Washington University School of Medicine, Washington, DC, USA.
Rajat DeoDepartments of Medicine and Epidemiology and Biostatistics, University of Pennsylvania Philadelphia, PA, USA.
Anne FrydrychDepartment of Medicine, University of Illinois at Chicago, Chicago, IL, USA.
Jing ChenDepartment of Medicine, Tulane University School of Medicine, New Orleans, LA, USA.
James SondheimerDepartment of Medicine, Wayne State University, Detroit, MI, USA.
Tariq ShafiDepartment of Medicine, Johns Hopkins University Baltimore, MD, USA.
Matthew WeirDepartment of Medicine, Division of Nephrology, University of Maryland School of Medicine, Baltimore, MD, USA.
James P LashDepartment of Medicine, University of Illinois at Chicago, Chicago, IL, USA.
CRIC Study Investigators
Harvard University · USCedars-Sinai Medical Center · USUniversity of Illinois Chicago · USUniversity of Maryland, Baltimore · USGeorge Washington University · USJohns Hopkins University · USNorthwestern University · USTulane University · USUniversity of Pennsylvania · USWayne State University · US

Funding

UCSF CLINICAL AND TRANSLATIONAL SCIENCE INSTITUTEUL1RR024131 · NCRR · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI JOHNSTON, S. CLAIBORNE · 2006 to 2011
$111.2M
Scientific and Data Coordinating Center(SDCC) for the P*U01DK060990 · NIDDK · UNIVERSITY OF PENNSYLVANIA · PI FELDMAN, HAROLD I · 2001 to 2017
$50.1M
Clinical and Translational Science Collaborative of ClevelandUL1TR000439 · NCATS · CASE WESTERN RESERVE UNIVERSITY · PI KONSTAN, MICHAEL W. · 2012 to 2016
$50.0M
Michigan Institute for Clinical and Health Research (MCHR)UL1TR000433 · NCATS · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI MASHOUR, GEORGE ALEXANDER · 2012 to 2016
$49.9M
Institutional Clinical and Translational Science AwardUL1TR000003 · NCATS · UNIVERSITY OF PENNSYLVANIA · PI FITZGERALD, GARRET A · 2012 to 2015
$38.9M
Clinical and Translational Science Collaborative of ClevelandUL1TR002548 · NCATS · CASE WESTERN RESERVE UNIVERSITY · PI MCCOMSEY, GRACE A · 2018 to 2022
$35.5M
Tulane COBRE in Cardiometabolic Diseases Clinical Research CoreP20GM109036 · NIGMS · TULANE UNIVERSITY OF LOUISIANA · PI JING CHEN · 2016 to 2026
$25.3M
Continuation of the Coordinating Center for the Chronic Renal Insufficiency Cohort (CRIC) StudyU24DK060990 · NIDDK · UNIVERSITY OF PENNSYLVANIA · PI Amanda Hyre Anderson, Laura M Dember · 2018 to 2026
$21.5M
Zonulin Antibodies in Intestinal Permeabilitiy in IDDMM01RR016500 · NCRR · UNIVERSITY OF MARYLAND BALTIMORE · PI OSWALD, LYNN M · 2002 to 2009
$20.2M
Study of the Care and Outcomes of REnal InsufficiencyU01DK060902 · NIDDK · KAISER FOUNDATION RESEARCH INSTITUTE · PI GO, ALAN S · 2001 to 2025
$19.5M
Limited Competition for the Continuation of the Chronic Renal Insufficiency CohorU01DK061021 · NIDDK · CASE WESTERN RESERVE UNIVERSITY · PI RAHMAN, MAHBOOB · 2001 to 2025
$17.3M
Prospective Renal Insufficiency Cohort Evaluation:PRICEU01DK060984 · NIDDK · UNIVERSITY OF PENNSYLVANIA · PI COHEN, DEBBIE L · 2001 to 2025
$17.0M
NCATS NIH HHS UL1 TR000003NCATS NIH HHS UL1 TR000424NCATS NIH HHS UL1 TR000433NCATS NIH HHS UL1 TR000439NCATS NIH HHS UL1 TR002548NCRR NIH HHS M01 RR016500NCRR NIH HHS UL1 RR024131NCRR NIH HHS UL1 RR029879NHLBI NIH HHS K08 HL121801NHLBI NIH HHS R01 HL133399NHLBI NIH HHS R56 HL133399NIDDK NIH HHS K23 DK106479NIDDK NIH HHS K23 DK120811NIDDK NIH HHS K23 DK128567NIDDK NIH HHS K24 DK092290NIDDK NIH HHS P30 DK114857NIDDK NIH HHS R01 DK119199NIDDK NIH HHS R01 DK124453NIDDK NIH HHS R01 DK139225NIDDK NIH HHS R21 DK130018NIDDK NIH HHS U01 DK060902NIDDK NIH HHS U01 DK060963NIDDK NIH HHS U01 DK060980NIDDK NIH HHS U01 DK060984NIDDK NIH HHS U01 DK060990NIDDK NIH HHS U01 DK061021NIDDK NIH HHS U01 DK061022NIDDK NIH HHS U01 DK061028NIDDK NIH HHS U01 DK103225NIDDK NIH HHS U24 DK060990NIGMS NIH HHS P20 GM109036
6 · The paper itself

Abstract

backgroundProtein carbamylation is a post-translational protein modification caused, in part, by exposure to urea's dissociation product cyanate. Carbamylation is linked to cardiovascular outcomes and mortality in dialysis-dependent end-stage kidney disease (ESKD), but its effects in earlier pre-dialysis stages of chronic kidney disease (CKD) are not established.

methodsWe conducted two nested case-control studies within the Chronic Renal Insufficiency Cohort Study. First, we matched 75 cases demonstrating CKD progression [50% estimated glomerular filtration rate (eGFR) reduction or reaching ESKD] to 75 controls (matched on baseline eGFR, 24-h proteinuria, age, sex and race). In the second study, we similarly matched 75 subjects who died during follow-up (cases) to 75 surviving controls. Baseline carbamylated albumin levels (C-Alb, a validated carbamylation assay) were compared between cases and controls in each study.

resultsAt baseline, in the CKD progression study, other than blood urea nitrogen (BUN) and smoking status, there were no significant differences in any matched or other parameter. In the mortality group, the only baseline difference was smoking status. Adjusting for baseline differences, the top tertile of C-Alb was associated with an increased risk of CKD progression [odds ratio (OR) = 7.9; 95% confidence interval (CI) 1.9-32.8; P = 0.004] and mortality (OR = 3.4; 95% CI 1.0-11.4; P = 0.05) when compared with the bottom tertile. C-Alb correlated with eGFR but was more strongly correlated with BUN.

conclusionsOur data suggest that protein carbamylation is a predictor of CKD progression, beyond traditional risks including eGFR and proteinuria. Carbamylation's association with mortality was smaller in this limited sample size.

Indexed as

Kidney Failure, ChronicRenal Insufficiency, ChronicCohort StudiesDisease ProgressionGlomerular Filtration RateHumansProtein CarbamylationcarbamylationCKDmortalityprogressionurea

Identifiers

PMID33661286
PMCPMC8719615
OpenAlexW3109681412

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.