Evidence map›Paper›PMID 23328126›Full record

Trial reportDiabetes2013

Omega-3 fatty acids reduce adipose tissue macrophages in human subjects with insulin resistance.

Michael Spencer, Brian S Finlin, Resat Unal, Beibei Zhu, Andrew J Morris, Lindsey R Shipp, Jonah Lee, R Grace Walton, Akosua Adu, Rod Erfani and 4 more

Registry-linked trialOpen access · hybridAbstract readRandomized Controlled Trial
In one paragraph

Trial report in Diabetes, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT00579436 (Effects of Fish Oils on Inflammation and Insulin Resistance), which is not on this map. Cited by 86 papers, 4 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
86citing papers in PubMed, 4 pooled it
11.2field-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.

NCT00579436 nacompletednot on this map

Effects of Fish Oils on Inflammation and Insulin Resistance

TypeinterventionalSponsorPhilip KernRan2007 to 2015Enrolled33ConditionsMetabolic Syndrome, Insulin ResistanceArmsomega-3 fatty acid, placebo
3 · Its place in the literature

Who cites it

86 citing papers in PubMed, 4 syntheses or guidelines pooled it, 178 citations in OpenAlex.

  1. Pooled it
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  5. Trial
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  12. Very-long-chainThe American journal of clinical nutrition · 2017
    Trial
  13. Beneficial Effects of n-3 Fatty Acids on Cardiometabolic and Inflammatory Markers in Type 2 Diabetes Mellitus: A Clinical Trial.Medical principles and practice : international journal of the Kuwait University, Health Science Centre · 2017
    Trial
  14. Trial
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  16. Omega-3 fatty acids inhibit the up-regulation of endothelial chemokines in maintenance hemodialysis patients.Nephrology, dialysis, transplantation : official publication of the European Dialysis and Transplant Association - European Renal Association · 2015
    Trial
  17. The British journal of nutrition · 2026
    Article
  18. Review
  19. Article
  20. Review

26 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

14 authors at 2 institutions in 1 country.

Michael SpencerDepartment of Medicine, Division of Endocrinology, and Barnstable Brown Diabetes and Obesity Center, University of Kentucky, Lexington, Kentucky, USA.
Brian S Finlin
Resat Unal
Beibei Zhu
Andrew J Morris
Lindsey R Shipp
Jonah Lee
R Grace Walton
Akosua Adu
Rod Erfani
Marilyn Campbell
Robert E McGehee
Charlotte A Peterson
Philip A Kern
University of Kentucky · USUniversity of Arkansas for Medical Sciences · US

Funding

Kentucky Center for Clinical and Translational ScienceUL1TR000117 · NCATS · UNIVERSITY OF KENTUCKY · PI KERN, PHILIP A · 2012 to 2015
$13.3M
THROMBOSPONDIN1 MEDIATES MACROPHAGE INFILTRATION INTO ADIPOSE TISSUE AND PROMOTEP20RR021954 · NCRR · UNIVERSITY OF KENTUCKY · PI ECKHARDT, ERIK · 2008 to 2011
$8.3M
KENTUCKY CENTER FOR CLINICAL AND TRANSLATIONAL SCIENCEUL1RR033173 · NCRR · UNIVERSITY OF KENTUCKY · PI KERN, PHILIP A · 2011 to 2011
$3.5M
Mechanisms Underlying Metabolic Syndrome in ObesityR01DK071349 · NIDDK · UNIVERSITY OF KENTUCKY · PI KERN, PHILIP A, PETERSON, CHARLOTTE A. · 2005 to 2013
$2.3M
Effects of Fish Oil on Inflammation and Metabolic SyndromeR01DK080327 · NIDDK · UNIV OF ARKANSAS FOR MED SCIS · PI KERN, PHILIP A · 2008 to 2012
$1.7M
Thermo/Finnigan TSQ AM Triple Stage Quadrupole Mass SpectrometerS10RR024598 · NCRR · UNIVERSITY OF KENTUCKY · PI MORRIS, ANDREW J · 2008 to 2008
$493k
NCATS NIH HHS UL1 TR000117NCRR NIH HHS P20 RR021954NCRR NIH HHS P20-RR-021954NCRR NIH HHS S10 RR024598NCRR NIH HHS UL1 RR033173NCRR NIH HHS UL1-RR-033173NIDDK NIH HHS DK-71349NIDDK NIH HHS DK-80327NIDDK NIH HHS R01 DK071349NIDDK NIH HHS R01 DK080327
6 · The paper itself

Abstract

Fish oils (FOs) have anti-inflammatory effects and lower serum triglycerides. This study examined adipose and muscle inflammatory markers after treatment of humans with FOs and measured the effects of ω-3 fatty acids on adipocytes and macrophages in vitro. Insulin-resistant, nondiabetic subjects were treated with Omega-3-Acid Ethyl Esters (4 g/day) or placebo for 12 weeks. Plasma macrophage chemoattractant protein 1 (MCP-1) levels were reduced by FO, but the levels of other cytokines were unchanged. The adipose (but not muscle) of FO-treated subjects demonstrated a decrease in macrophages, a decrease in MCP-1, and an increase in capillaries, and subjects with the most macrophages demonstrated the greatest response to treatment. Adipose and muscle ω-3 fatty acid content increased after treatment; however, there was no change in insulin sensitivity or adiponectin. In vitro, M1-polarized macrophages expressed high levels of MCP-1. The addition of ω-3 fatty acids reduced MCP-1 expression with no effect on TNF-α. In addition, ω-3 fatty acids suppressed the upregulation of adipocyte MCP-1 that occurred when adipocytes were cocultured with macrophages. Thus, FO reduced adipose macrophages, increased capillaries, and reduced MCP-1 expression in insulin-resistant humans and in macrophages and adipocytes in vitro; however, there was no measureable effect on insulin sensitivity.

Indexed as

Dietary SupplementsInsulin ResistanceAbdominal FatAngiogenesis Inducing AgentsAnti-Inflammatory Agents, Non-SteroidalBody Mass IndexCapillariesCells, CulturedChemokine CCL2Coculture TechniquesDocosahexaenoic AcidsDown-RegulationDrug CombinationsEicosapentaenoic AcidFatty Acids, Omega-3FemaleAngiogenesis Inducing AgentsAnti-Inflammatory Agents, Non-SteroidalCCL2 protein, humanChemokine CCL2Docosahexaenoic AcidsDrug CombinationsEicosapentaenoic AcidFatty Acids, Omega-3Fish OilsOmacorRNA, Messenger

Identifiers

PMID23328126
PMCPMC3636648
OpenAlexW2104680689

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.