Evidence map›Paper›PMID 17437645›Full record

ArticleRespiratory research2007

Body mass index is associated with reduced exhaled nitric oxide and higher exhaled 8-isoprostanes in asthmatics.

Sushma Komakula, Sumita Khatri, Joel Mermis, Samira Savill, Shireen Haque, Mauricio Rojas, LouAnn Brown, Gerald W Teague, Fernando Holguin

Registry-linked trialOpen access · goldAbstract read
In one paragraph

Article in Respiratory research, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT02975258 (Adiposity and Airway Inflammation in HIV-Associated Airway Disease), which is not on this map. Cited by 78 papers.

0numbers the graph read from it
0cells of the map it votes in
78citing papers in PubMed
4.8field-weighted citation impact, top 5% 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.

NCT02975258 completednot on this mapstarted 2015, after this paper: background citation

Adiposity and Airway Inflammation in HIV-Associated Airway Disease

TypeobservationalSponsorUniversity of PittsburghRan2015 to 2017Enrolled102ConditionsAsthma, HIV, AdiposityArmsBlood draw, Questionnaires, Spirometry, Methacholine challenge test, Quantitative CT scans
3 · Its place in the literature

Who cites it

78 citing papers in PubMed, 175 citations in OpenAlex.

  1. Trial
  2. Obesity's effect on asthma extends to diagnostic criteria.The Journal of allergy and clinical immunology · 2018
    Trial
  3. Article
  4. Review
  5. Article
  6. The role of type 2 diabetes in the severity of adult asthma.Current opinion in allergy and clinical immunology · 2025
    Review
  7. Review
  8. Article
  9. Article
  10. Association of Obesity and Severe Asthma in Adults.Journal of clinical medicine · 2024
    Review
  11. Article
  12. The Role of Peptides in Asthma-Obesity Phenotype.International journal of molecular sciences · 2024
    Review
  13. Article
  14. Review
  15. Article
  16. Mitoquinone mesylate attenuates pathological features of lean and obese allergic asthma in mice.American journal of physiology. Lung cellular and molecular physiology · 2023
    Article
  17. Review
  18. Article
  19. Article
  20. Review

18 more citing papers are in PubMed but not listed here.

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 1 institution in 1 country.

Sushma KomakulaDepartment of Medicine, Emory University, Atlanta, USA. skomaku@emory.edu
Sumita Khatri
Joel Mermis
Samira Savill
Shireen Haque
Mauricio Rojas
LouAnn Brown
Gerald W Teague
Fernando Holguin
Emory University · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundRecently, it has been shown that increasing body mass index (BMI) in asthma is associated with reduced exhaled NO. Our objective in this study was to determine if the BMI-related changes in exhaled NO differ across asthmatics and controls, and to determine if these changes are related to increased airway oxidative stress and systemic levels of leptin and adiponectin.

methodsObservational study of the association of BMI, leptin, and adiponectin with exhaled nitric oxide (NO) and exhaled 8-isoprostanes in 67 non-smoking patients with moderate to severe persistent asthma during baseline conditions and 47 controls. Measurements included plasma levels of leptin, adiponectin, exhaled breath condensates for 8-isoprostanes, exhaled NO, pulmonary function tests, and questionnaires regarding asthma severity and control.

resultsIn asthmatics, BMI and the ratio of leptin to adiponectin were respectively associated with reduced levels of exhaled NO (beta = -0.04 [95% C.I. -0.07, -0.1], p < 0.003) and (beta = -0.0018 [95% C.I. -0.003, -0.00034], p = 0.01) after adjusting for confounders. Also, BMI was associated with increased levels of exhaled 8-isoprostanes (beta = 0.30 [95% C.I. 0.003, 0.6], p = 0.03) after adjusting for confounders. In contrast, we did not observe these associations in the control group of healthy non-asthmatics with a similar weight distribution.

conclusionIn adults with stable moderate to severe persistent asthma, but not in controls, BMI and the plasma ratio of leptin/adiponectin is associated with reduced exhaled NO. Also, BMI is associated with increased exhaled 8-isoprostanes. These results suggest that BMI in asthmatics may increase airway oxidative stress and could explain the BMI-related reductions in exhaled NO.

Indexed as

Body Mass IndexExhalationIsoprostanesNitric OxideAdiponectinAdultAgedAsthmaFemaleHumansLeptinMaleMiddle AgedSeverity of Illness IndexAdiponectinIsoprostanesLeptinNitric Oxide

Identifiers

PMID17437645
PMCPMC1855924
OpenAlexW2057142554

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

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.