Evidence map›Paper›PMID 23277875›Full record

ArticleAllergy, asthma & immunology research2013

Ratio of leukotriene e(4) to exhaled nitric oxide and the therapeutic response in children with exercise-induced bronchoconstriction.

Hey-Sung Baek, Juhwan Cho, Joo-Hwa Kim, Jae-Won Oh, Ha-Baik Lee

Open access · hybridAbstract read
In one paragraph

Article in Allergy, asthma & immunology research, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed, 1 pooled it
1.2field-weighted citation impact, top 21% 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

10 citing papers in PubMed, 1 synthesis or guideline pooled it, 13 citations in OpenAlex.

  1. Pooled it
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  4. Review
  5. Review
  6. Article
  7. Intensity of swimming exercise influences tracheal reactivity in rats.Journal of smooth muscle research = Nihon Heikatsukin Gakkai kikanshi · 2015
    Article
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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

5 authors at 2 institutions in 1 country.

Hey-Sung BaekDepartment of Pediatrics, Kangdong Sacred Heart Hospital, Hallym University School of Medicine, Seoul, Korea.
Juhwan Cho
Joo-Hwa Kim
Jae-Won Oh
Ha-Baik Lee
Hanyang University · KRHallym University · KR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeThis study assessed the association between the ratio of leukotriene E(4) (LTE(4)) to fractional exhaled nitric oxide (FE(NO)) in the response of children with exercise-induced bronchoconstriction (EIB) enrolled in a therapeutic trial with montelukast or inhaled corticosteroid (fluticasone propionate [FP]).

methodsChildren aged 6 to 18 years with EIB were randomized in a 4-week, placebo-controlled, double-blinded trial with montelukast or FP. Before and after treatment, treadmill exercise challenges were performed. The LTE(4) levels in the induced sputum and urine and the FE(NO) levels were measured in subjects before and 30 minutes after the exercise challenges. The same tests were conducted after treatment.

resultsA total of 24 patients completed the study: 12 in the montelukast group and 12 in FP group. Both study groups displayed a similar postexercise maximum decrease in forced expiratory volume in one second (FEV1) before treatment as well as after treatment. However, there were significant differences in the magnitude of change between the two (Δ; -18.38±14.53% vs. -4.67±8.12% for the montelukast and FP groups, respectively; P=0.021). The Δ logarithmic sputum baseline and postexercise LTE(4)/FE(NO) ratio were significantly lower in the montelukast group than in the FP group (baseline; -0.09±0.21 vs. -0.024±0.03, P=0.045; postexercise, -0.61±0.33 vs. -0.11±0.28, P=0.023).

conclusionsThese data indicate that the efficacy of montelukast for preventing a maximum decrease in FEV1 after exercise is significantly higher than that of FP, and the high LTE(4)/FE(NO) ratio is associated with a greater response to montelukast than to FP for EIB therapy. These results suggest that LTE(4) may play an important role in EIB.

Indexed as

Exercise-induced bronchoconstrictionfractional exhaled nitric oxideinhaled corticosteroidleukotriene E4montelukast

Identifiers

PMID23277875
PMCPMC3529225
OpenAlexW2111210867

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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.