Evidence map›Paper›PMID 24134486›Full record

ArticleAmerican journal of respiratory cell and molecular biology2014

Dietary long-chain omega-3 fatty acids do not diminish eosinophilic pulmonary inflammation in mice.

Gertrud U Schuster, Jennifer M Bratt, Xiaowen Jiang, Theresa L Pedersen, Dmitry Grapov, Yuriko Adkins, Darshan S Kelley, John W Newman, Nicholas J Kenyon, Charles B Stephensen

Abstract read
In one paragraph

Article in American journal of respiratory cell and molecular biology, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed
3.7field-weighted citation impact, top 7% 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

17 citing papers in PubMed, 38 citations in OpenAlex.

  1. Trial
  2. Article
  3. Article
  4. Review
  5. Review
  6. Article
  7. Leukotriene BHeliyon · 2021
    Article
  8. Article
  9. Review
  10. Review
  11. Article
  12. Review
  13. Diet and asthma: an update.Current opinion in allergy and clinical immunology · 2015
    Review
  14. Article
  15. Article
  16. Article
  17. 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

10 authors at 3 institutions in 1 country.

Gertrud U Schuster1 United States Department of Agriculture (USDA), Agricultural Research Service (ARS), Western Human Nutrition Research Center, Immunity and Disease Prevention Unit, Davis, California.
Jennifer M Bratt
Xiaowen Jiang
Theresa L Pedersen
Dmitry Grapov
Yuriko Adkins
Darshan S Kelley
John W Newman
Nicholas J Kenyon
Charles B Stephensen
Agricultural Research Service · USUniversity of California, Davis · USUnited States Department of Agriculture · US

Funding

West Coast Central Comprehensive Metabolomics Resource Core (WC3MRC)U24DK097154 · NIDDK · UNIVERSITY OF CALIFORNIA AT DAVIS · PI FIEHN, OLIVER · 2012 to 2017
$9.9M
Training Program in Biomolecular TechnologyT32GM008799 · NIGMS · UNIVERSITY OF CALIFORNIA DAVIS · PI LEACH, J. KENT · 2002 to 2016
$2.4M
L-arginine as a therapy in severe asthmaR01HL105573 · NHLBI · UNIVERSITY OF CALIFORNIA AT DAVIS · PI KENYON, NICHOLAS J. · 2012 to 2016
$1.9M
NHLBI NIH HHS HL105573NHLBI NIH HHS R01 HL105573NIDDK NIH HHS 1 U24 DK097154NIDDK NIH HHS U24 DK097154NIGMS NIH HHS T32 GM008799NIGMS NIH HHS T32-GM008799
6 · The paper itself

Abstract

Although the effects of fish oil supplements on airway inflammation in asthma have been studied with varying results, the independent effects of the fish oil components, eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA), administered separately, are untested. Here, we investigated airway inflammation and hyperresponsiveness using a mouse ovalbumin exposure model of asthma assessing the effects of consuming EPA (1.5% wt/wt), DHA (1.5% wt/wt), EPA plus DHA (0.75% each), or a control diet with no added omega-3 polyunsaturated fatty acids. Consuming these diets for 6 weeks resulted in erythrocyte membrane EPA contents (molar %) of 9.0 (± 0.6), 3.2 (± 0.2), 6.8 (± 0.5), and 0.01 (± 0.0)%; DHA contents were 6.8 (± 0.1), 15.6 (± 0.5), 12.3 (± 0.3), and 3.8 (± 0.2)%, respectively. The DHA group had the highest bronchoalveolar lavage (BAL) fluid eosinophil and IL-6 levels (P < 0.05). Similar trends were seen for macrophages, IL-4, and IL-13, whereas TNF-α was lower in omega-3 polyunsaturated fatty acid groups than the control (P < 0.05). The DHA group also had the highest airway resistance, which differed significantly from the EPA plus DHA group (P < 0.05), which had the lowest. Oxylipins were measured in plasma and BAL fluid, with DHA and EPA suppressing arachidonic acid-derived oxylipin production. DHA-derived oxylipins from the cytochrome P450 and 15-lipoxygenase pathways correlated significantly with BAL eosinophil levels. The proinflammatory effects of DHA suggest that the adverse effects of individual fatty acid formulations should be thoroughly considered before any use as therapeutic agents in asthma.

Indexed as

Dietary SupplementsAirway ResistanceAnimalsAnti-Asthmatic AgentsAnti-Inflammatory AgentsAsthmaBronchial HyperreactivityBronchoalveolar Lavage FluidCytokinesDisease Models, AnimalDocosahexaenoic AcidsEicosapentaenoic AcidEosinophilsFemaleInflammation MediatorsLungAnti-Asthmatic AgentsAnti-Inflammatory AgentsCytokinesDocosahexaenoic AcidsEicosapentaenoic AcidInflammation MediatorsOxylipins

Identifiers

PMID24134486
PMCPMC4068931
OpenAlexW2108709576

What OpenQuestion holds

Textmetadata
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.