Evidence map›Paper›PMID 21039601›Full record

ArticleAllergy2011

Genetic variations in nitric oxide synthase and arginase influence exhaled nitric oxide levels in children.

M T Salam, T M Bastain, E B Rappaport, T Islam, K Berhane, W J Gauderman, F D Gilliland

Abstract read
In one paragraph

Article in Allergy, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers.

0numbers the graph read from it
0cells of the map it votes in
25citing papers in PubMed
2.7field-weighted citation impact, top 11% 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

25 citing papers in PubMed, 60 citations in OpenAlex.

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  9. Genetic and epigenetic susceptibility of airway inflammation to PMEnvironmental health : a global access science source · 2017
    Article
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  11. A common variant in RAB27A gene is associated with fractional exhaled nitric oxide levels in adults.Clinical and experimental allergy : journal of the British Society for Allergy and Clinical Immunology · 2015
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  15. The (CCTTT)n microsatellite polymorphism in the NOS2 gene may influence lung cancer risk and long-term survival, especially in non-smokers.Tumour biology : the journal of the International Society for Oncodevelopmental Biology and Medicine · 2014
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  19. Fractional exhaled nitric oxide (FeNO) measurement in asthma and rhinitis.Primary care respiratory journal : journal of the General Practice Airways Group · 2013
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  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

7 authors at 1 institution in 1 country.

M T SalamDepartment of Preventive Medicine, University of Southern California Keck School of Medicine, Los Angeles, CA, USA.
T M Bastain
E B Rappaport
T Islam
K Berhane
W J Gauderman
F D Gilliland
University of Southern California · US

Funding

Translational Research Support CoreP30ES007048 · NIEHS · UNIVERSITY OF SOUTHERN CALIFORNIA · PI Joseph Leo Wiemels · 1996 to 2026
$46.4M
Urban Air Pollution and Children's Respiratory HealthP01ES011627 · NIEHS · UNIVERSITY OF SOUTHERN CALIFORNIA · PI AVOL, EDWARD · 2002 to 2011
$30.2M
Urban Air Pollution &Persistent Early Life AsthmaP01ES009581 · NIEHS · UNIVERSITY OF SOUTHERN CALIFORNIA · PI GILLILAND, FRANK D. · 1999 to 2010
$6.8M
FACTORS IN CHILDHOOD LUNG SUSCEPTIBILITY TO POLLUTIONR01HL061768 · NHLBI · UNIVERSITY OF SOUTHERN CALIFORNIA · PI GILLILAND, FRANK D. · 1999 to 2008
$4.4M
Air Pollution, Inflammation and New Onset AsthmaR01HL076647 · NHLBI · UNIVERSITY OF SOUTHERN CALIFORNIA · PI GILLILAND, FRANK D. · 2005 to 2009
$3.6M
NHLBI NIH HHS 5R01HL61768NHLBI NIH HHS 5R01HL76647NHLBI NIH HHS R01 HL061768NHLBI NIH HHS R01 HL076647NIEHS NIH HHS 5P01ES009581NIEHS NIH HHS 5P01ES011627NIEHS NIH HHS 5P30ES007048NIEHS NIH HHS P01 ES009581NIEHS NIH HHS P01 ES011627NIEHS NIH HHS P30 ES007048ORD VA RD831861-01
6 · The paper itself

Abstract

backgroundExhaled nitric oxide (FeNO) is a biomarker of airway inflammation. In the nitric oxide (NO) synthesis pathway, nitric oxide synthases (encoded by NOS1, NOS2A, and NOS3) and arginases (encoded by ARG1 and ARG2) compete for L-arginine. Although FeNO levels are higher in children with asthma/allergy, influence of these conditions on the relationships between variations in these genes and FeNO remains unknown. The aims of the study were to evaluate the role of genetic variations in nitric oxide synthases and arginases on FeNO in children and to assess the influence of asthma and respiratory allergy on these genetic associations.

methodsAmong children (6-11 years) who participated in the southern California Children's Health Study, variations in these five genetic loci were characterized by tagSNPs. FeNO was measured in two consecutive years (N = 2298 and 2515 in Years 1 and 2, respectively). Repeated measures analysis of variance was used to evaluate the associations between these genetic variants and FeNO.

resultsSequence variations in the NOS2A and ARG2 loci were globally associated with FeNO (P = 0.0002 and 0.01, respectively). The ARG2 association was tagged by intronic variant rs3742879 with stronger association with FeNO in asthmatic children (P-interaction = 0.01). The association of a NOS2A promoter haplotype with FeNO varied significantly by rs3742879 genotypes and by asthma.

conclusionVariants in the NO synthesis pathway genes jointly contribute to differences in FeNO concentrations. Some of these genetic influences were stronger in children with asthma. Further studies are required to confirm our findings.

Indexed as

Genetic VariationPolymorphism, Single NucleotideAllelesArginaseAsthmaCaliforniaChildChild, PreschoolFemaleGene FrequencyGenetic Association StudiesGenetic TestingGenotypeHumansMaleNitric OxideArginaseNitric OxideNitric Oxide Synthase

Identifiers

PMID21039601
PMCPMC3058253
OpenAlexW1879230834

What OpenQuestion holds

Textmetadata
LicenceTDM
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.