Evidence map›Paper›PMID 24970872›Full record

ArticleClinical journal of the American Society of Nephrology : CJASN2014

Asymmetric dimethylarginine, race, and mortality in hemodialysis patients.

David A Drew, Hocine Tighiouart, Tammy Scott, Amy Kantor, Li Fan, Carlo Artusi, Mario Plebani, Daniel E Weiner, Mark J Sarnak

Open access · bronzeAbstract read
In one paragraph

Article in Clinical journal of the American Society of Nephrology : CJASN, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed, 1 pooled it
1.2field-weighted citation impact, top 19% 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

11 citing papers in PubMed, 1 synthesis or guideline pooled it, 16 citations in OpenAlex.

  1. Pooled it
  2. Serum Asymmetric and Symmetric Dimethylarginine and Morbidity and Mortality in Hemodialysis Patients.American journal of kidney diseases : the official journal of the National Kidney Foundation · 2017
    Trial
  3. Review
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  5. Article
  6. Review
  7. Article
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  10. Observational
  11. Arterial function and cardiovascular risk in dialysis.Anatolian journal of cardiology · 2015
    Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

9 authors at 3 institutions in 2 countries.

David A DrewDivision of Nephrology, Department of Medicine.
Hocine TighiouartInstitute for Clinical Research and Health Policy Studies, and Tufts Clinical and Translational Science Institute, Tufts University, Boston, Massachusetts; and.
Tammy ScottDepartment of Psychiatry, Tufts Medical Center, Boston, Massachusetts;
Amy KantorDivision of Nephrology, Department of Medicine.
Li FanDivision of Nephrology, Department of Medicine.
Carlo ArtusiDepartment of Laboratory Medicine, University Hospital of Padua, Padua, Italy.
Mario PlebaniDepartment of Laboratory Medicine, University Hospital of Padua, Padua, Italy.
Daniel E WeinerDivision of Nephrology, Department of Medicine.
Mark J SarnakDivision of Nephrology, Department of Medicine, msarnak@tuftsmedicalcenter.org.
Tufts Medical Center · USUniversity of Padua · ITTufts University · US

Funding

Kidney Disease, Stroke and Cognitive ImpairmentK23DK071636 · NIDDK · TUFTS MEDICAL CENTER · PI WEINER, DANIEL E · 2005 to 2009
$644k
Chronic Kidney Disease, Vascular Disease and AgingK24DK078204 · NIDDK · TUFTS MEDICAL CENTER · PI SARNAK, MARK J · 2007 to 2011
$587k
Cardiac Risk Factors in Chronic Kidney DiseaseR21DK068310 · NIDDK · TUFTS MEDICAL CENTER · PI SARNAK, MARK J · 2005 to 2006
$443k
NIDDK NIH HHS K23 DK071636NIDDK NIH HHS K23-DK71636NIDDK NIH HHS K24 DK078204NIDDK NIH HHS R01-DK078204NIDDK NIH HHS R21 DK068310NIDDK NIH HHS R21-DK068310
6 · The paper itself

Abstract

BACKGROUND AND

objectivesLevels of asymmetric dimethylarginine, an inhibitor of nitric oxide synthase, are elevated in kidney disease and associated with mortality in white European hemodialysis populations. Nitric oxide production and degradation are partially genetically determined and differ by racial background. No studies have measured asymmetric dimethylarginine in African Americans on dialysis and assessed whether differences exist in its association with mortality by race. DESIGN, SETTING, PARTICIPANTS, & MEASUREMENTS: Asymmetric dimethylarginine was measured in 259 patients on maintenance hemodialysis assembled from 2004 to 2012 in Boston area outpatient centers. Cox proportional hazards models were used to determine the association between asymmetric dimethylarginine and all-cause mortality, and an interaction with race was tested.

resultsMean (SD) age was 63 (17) years, 46% were women, and 22% were African American. Mean asymmetric dimethylarginine in non-African Americans was 0.79 µmol/L (0.16) versus 0.70 µmol/L (0.11) in African Americans (P<0.001); 130 patients died over a median follow-up of 2.3 years. African Americans had lower mortality risk than non-African Americans (hazard ratio, 0.27; 95% confidence interval, 0.15 to 0.50) that was robust to adjustment for age, comorbidity, and asymmetric dimethylarginine (hazard ratio, 0.35; 95% confidence interval, 0.17 to 0.69). An interaction was noted between race and asymmetric dimethylarginine (P=0.03), such that asymmetric dimethylarginine was associated with higher mortality in non-African Americans (adjusted hazard ratio, 1.29; 95% confidence interval, 1.06 to 1.57 per 1 SD higher asymmetric dimethylarginine) but not in African Americans (adjusted hazard ratio, 0.57; 95% confidence interval, 0.28 to 1.18). Additional adjustment for fibroblast growth factor 23 partially attenuated the association for non-African Americans (adjusted hazard ratio, 1.22; 95% confidence interval, 0.98 to 1.50).

conclusionsAfrican Americans have lower asymmetric dimethylarginine levels and lower hazard for mortality compared with non-African Americans. Levels of asymmetric dimethylarginine did not explain lower hazard for mortality in non-African American patients. High asymmetric dimethylarginine was a risk factor for mortality exclusively in non-African Americans. Mechanisms explaining these relationships need to be evaluated.

Indexed as

Black or African AmericanAgedAged, 80 and overArginineBiomarkersBostonCause of DeathFemaleHumansKidney Failure, ChronicLinear ModelsMaleMiddle AgedMultivariate AnalysisPrognosisProportional Hazards ModelsArginineBiomarkersN,N-dimethylargininehemodialysismortality risknitric oxide

Identifiers

PMID24970872
PMCPMC4123389
OpenAlexW2104537379

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

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.