Evidence map›Paper›PMID 35949183›Full record

ArticlePediatric pulmonology2022

Mechanical effects of obesity on central and peripheral airway resistance in nonasthmatic early pubescent children.

Daniel P Wilhite, Dharini M Bhammar, Tanya Martinez-Fernandez, Tony G Babb

Open access · greenAbstract read
In one paragraph

Article in Pediatric pulmonology, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed
1.1field-weighted citation impact, top 24% 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

6 citing papers in PubMed, 10 citations in OpenAlex.

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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

4 authors at 2 institutions in 1 country.

Daniel P WilhiteInstitute for Exercise and Environmental Medicine (Primary Research Institution), Texas Health Presbyterian Hospital Dallas & UT Southwestern Medical Center, Dallas, Texas, USA.ORCID 0000-0002-2506-4073
Dharini M BhammarInstitute for Exercise and Environmental Medicine (Primary Research Institution), Texas Health Presbyterian Hospital Dallas & UT Southwestern Medical Center, Dallas, Texas, USA.ORCID 0000-0003-3358-2169
Tanya Martinez-FernandezDepartment of Pediatrics, UT Southwestern Medical Center, Dallas, Texas, USA.
Tony G BabbInstitute for Exercise and Environmental Medicine (Primary Research Institution), Texas Health Presbyterian Hospital Dallas & UT Southwestern Medical Center, Dallas, Texas, USA.
Texas Health Dallas · USSouthwestern Medical Center · US

Funding

UT Southwestern NORCP30DK127984 · NIDDK · UT SOUTHWESTERN MEDICAL CENTER · PI Jeffrey M Zigman · 2022 to 2026
$7.4M
Respiratory Effects of Obesity in Children: Longitudinal Consequences after 6 Years of AgingR01HL136643 · NHLBI · UT SOUTHWESTERN MEDICAL CENTER · PI TONY G BABB · 2017 to 2026
$5.0M
NHLBI NIH HHS R01 HL136643NIDDK NIH HHS P30 DK127984
6 · The paper itself

Abstract

backgroundIn children, obesity typically reduces functional residual capacity (FRC), which reduces airway caliber and increases airway resistance. Whether these obesity-related changes in respiratory function can alter bronchodilator responsiveness is unknown.

objectiveTo investigate bronchodilator responsiveness in nonasthmatic children with and without obesity.

methodsSeventy nonasthmatic children, 8-12 years old, without (n = 19) and with (n = 51) obesity, completed spirometry, impulse oscillometry, and airway resistance measurements through plethysmography pre/post 360 µg of inhaled albuterol. FRC was assessed pre albuterol. A two-way analysis of variance determined the effects of obesity (group) and inhaled albuterol (pre-post) on outcome measures.

resultsFRC (%total lung capacity) was 16% lower in children with obesity compared with those without obesity. There was no significant group by pre-post albuterol interaction on any outcome variables. Albuterol inhalation reduced total, central and peripheral airway resistance and increased airway reactance (i.e., less negative) to a similar degree in children with and without obesity. In children with obesity, airway resistance was increased whether measured by impulse oscillometry or plethysmography. However, once airway resistance was adjusted for lung volumes (i.e., specific airway resistance or sR

conclusionsIn nonasthmatic early pubescent children, obesity increases total, central, and peripheral respiratory system resistance. However, the added respiratory system resistance and low lung volume breathing with obesity are not sufficient to reduce bronchodilator responsiveness.

Indexed as

Airway ResistanceBronchodilator AgentsAlbuterolChildHumansLungObesityAlbuterolBronchodilator Agentsairway resistancealbuterolbronchodilator

Identifiers

PMID35949183
PMCPMC9675709
OpenAlexW4291004651

What OpenQuestion holds

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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.