Evidence map›Paper›PMID 19158225›Full record

Trial reportThe Journal of nutrition2009

DHA supplementation decreases serum C-reactive protein and other markers of inflammation in hypertriglyceridemic men.

Darshan S Kelley, David Siegel, Dawn M Fedor, Yuriko Adkins, Bruce E Mackey

Open access · bronzeAbstract readRandomized Controlled Trial
In one paragraph

Trial report in The Journal of nutrition, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 48 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
48citing papers in PubMed, 1 pooled it
10.8field-weighted citation impact, top 1% 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

48 citing papers in PubMed, 1 synthesis or guideline pooled it, 138 citations in OpenAlex.

  1. Pooled it
  2. Trial
  3. Trial
  4. Effect of omega-3 fatty acids on kidney function after myocardial infarction: the Alpha Omega Trial.Clinical journal of the American Society of Nephrology : CJASN · 2014
    Trial
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  7. Trial
  8. Trial
  9. Article
  10. ELOVL5 Regulates Ferroptosis in Breast Cancer Cells.Doklady. Biochemistry and biophysics · 2025
    Article
  11. Review
  12. Article
  13. Review
  14. Article
  15. Article
  16. Safety of oil fromEFSA journal. European Food Safety Authority · 2021
    Article
  17. Article
  18. Review
  19. Review
  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

5 authors at 2 institutions in 1 country.

Darshan S KelleyWestern Human Nutrition Research Center, Agricultural Research Service, USDA, and Department of Nutrition, University of California, Davis, CA 95616, USA. darshan.kelley@ars.usda.gov
David Siegel
Dawn M Fedor
Yuriko Adkins
Bruce E Mackey
Agricultural Research Service · USVA Northern California Health Care System · US

Funding

UC DAVIS CLINICAL AND TRANSLATIONAL SCIENCE CENTER: BPCAUL1RR024146 · NCRR · UNIVERSITY OF CALIFORNIA AT DAVIS · PI BERGLUND, LARS F · 2006 to 2011
$27.0M
NCRR NIH HHS UL1 RR024146
6 · The paper itself

Abstract

Dietary (n-3) PUFA reduce inflammation, an independent risk factor for cardiovascular disease. The antiinflammatory effects of docosahexaenoic acid (DHA) in hypertriglyceridemic men have not been previously reported, to our knowledge, and were the focus of this study. Hypertriglyceridemic men (n = 17 per group) aged 39-66 y, participated in a double-blind, randomized, placebo-controlled parallel study. They received no supplements for the first 8 d and then received either 7.5 g/d DHA oil (3 g DHA/d) or olive oil (placebo) for the last 90 d. Blood samples were collected from fasting men on study days -7, 0, 45, 84, and 91. DHA supplementation for 45 and 91 d decreased the number of circulating neutrophils by 11.7 and 10.5%, respectively (P < 0.05). It did not alter the circulating concentrations of other inflammatory markers tested within 45 d, but at 91 d it reduced (P < 0.05) concentrations of C-reactive protein (CRP) by 15%, interleukin-6 by 23%, and granulocyte monocyte-colony stimulating factor by 21% and DHA increased the concentration of antiinflammatory matrix metalloproteinase-2 by 7%. The number of circulating neutrophils was positively associated with the weight percent (wt %) of 20:4(n-6) in RBC lipids, and negatively to the wt % of 20:5(n-3) and 22:6(n-3). Concentrations of CRP and serum amyloid A were positively associated with the sum of SFA and negatively with the wt % of 18:1(n-9) and 17:0 in RBC lipids; CRP was also positively associated with the wt % of 20:2(n-6). The mean size of VLDL particles was positively associated with plasma concentrations of neutrophils and CRP. In conclusion, DHA may lessen the inflammatory response by altering blood lipids and their fatty acid composition.

Indexed as

Dietary SupplementsAdultAgedBiomarkersC-Reactive ProteinDocosahexaenoic AcidsDouble-Blind MethodHumansHypertriglyceridemiaInflammationLeukocytesLipidsLipoproteinsMaleMiddle AgedBiomarkersC-Reactive ProteinDocosahexaenoic AcidsLipidsLipoproteins

Identifiers

PMID19158225
PMCPMC2646223
OpenAlexW2159526885

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.