Evidence map›Paper›PMID 24727374›Full record

ArticleInternational journal of molecular sciences2014

Asymmetric dimethylarginine in chronic obstructive pulmonary disease (ADMA in COPD).

Jeremy A Scott, MyLinh Duongh, Aaron W Young, Padmaja Subbarao, Gail M Gauvreau, Hartmut Grasemann

Open access · goldAbstract read
In one paragraph

Article in International journal of molecular sciences, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed, 1 pooled it
3.1field-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, 1 synthesis or guideline pooled it, 41 citations in OpenAlex.

  1. Pooled it
  2. Review
  3. Article
  4. Identifying Biomarkers for Chronic Obstructive Pulmonary Disease in the Salivary Metabolome.International journal of chronic obstructive pulmonary disease · 2026
    Article
  5. Article
  6. Article
  7. Review
  8. Article
  9. Review
  10. Article
  11. Article
  12. Arginine Therapy for Lung Diseases.Frontiers in pharmacology · 2021
    Review
  13. Article
  14. Observational
  15. Article
  16. Article
  17. Article
  18. Article
  19. Article
  20. 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

6 authors at 5 institutions in 2 countries.

Jeremy A ScottDepartment of Health Sciences, Lakehead University, 955 Oliver Road, Thunder Bay, ON P7B 5E1, Canada. jascott1@lakeheadu.ca.
MyLinh DuonghDepartment of Medicine, McMaster University, 1280 Main Street West, Hamilton, ON L8S 4L8, Canada. duongmy@mcmaster.ca.
Aaron W YoungDepartment of Physiology and Biophysics, Boston University School of Medicine, 72 East Concord St., Boston, MA 02118, USA. youngaw@bu.edu.
Padmaja SubbaraoProgram in Physiology and Experimental Medicine, SickKids Research Institute, and Division of Respiratory Medicine, Department of Pediatrics, Hospital for Sick Children, 555 University Avenue University of Toronto, Toronto, ON M5G 1X8, Canada. padmaja.subbarao@sickkids.ca.
Gail M GauvreauDepartment of Medicine, McMaster University, 1280 Main Street West, Hamilton, ON L8S 4L8, Canada. gauvreau@mcmaster.ca.
Hartmut GrasemannProgram in Physiology and Experimental Medicine, SickKids Research Institute, and Division of Respiratory Medicine, Department of Pediatrics, Hospital for Sick Children, 555 University Avenue University of Toronto, Toronto, ON M5G 1X8, Canada. hartmut.grasemann@sickkids.ca.
McMaster University · CABoston University · USHospital for Sick Children · CALakehead University · CASickKids Foundation · CA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

L-arginine metabolism including the nitric oxide (NO) synthase and arginase pathways is important in the maintenance of airways function. We have previously reported that accumulation of asymmetric dimethylarginine (ADMA) in airways, resulting in changes in L-arginine metabolism, contributes to airways obstruction in asthma and cystic fibrosis. Herein, we assessed L-arginine metabolism in airways of patients with chronic obstructive pulmonary disease (COPD). Lung function testing, measurement of fractional exhaled NO (FeNO) and sputum NO metabolites, as well as quantification of L-arginine metabolites (L-arginine, L-ornithine, L-citrulline, ADMA and symmetric dimethylarginine) using liquid chromatography-mass spectrometry (LC-MS) were performed. Concentrations of L-ornithine, the product of arginase activity, correlated directly with L-arginine and ADMA sputum concentrations. FeNO correlated directly with pre- and post-bronchodilator forced expiratory volume in one second (FEV1). Sputum arginase activity correlated inversely with total NO metabolite (NOx) and nitrite concentrations in sputum, and with pre- and post-bronchodilator FEV1. These findings suggest that ADMA in COPD airways results in a functionally relevant shift of L-arginine breakdown by the NO synthases towards the arginase pathway, which contributes to airway obstruction in these patients.

Indexed as

Tandem Mass SpectrometryAgedArginaseArginineChromatography, High Pressure LiquidFemaleForced Expiratory VolumeHumansLungMaleNitric OxideNitric Oxide SynthaseOrnithinePulmonary Disease, Chronic ObstructiveSputumArginaseArginineNitric OxideNitric Oxide SynthaseN,N-dimethylarginineOrnithine

Identifiers

PMID24727374
PMCPMC4013615
OpenAlexW1998349455

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.