Evidence map›Paper›PMID 25616438›Full record

Trial reportJournal of lipid research2015

Effects of n-3 FA supplementation on the release of proresolving lipid mediators by blood mononuclear cells: the OmegAD study.

Xiuzhe Wang, Erik Hjorth, Inger Vedin, Maria Eriksdotter, Yvonne Freund-Levi, Lars-Olof Wahlund, Tommy Cederholm, Jan Palmblad, Marianne Schultzberg

3 registry-linked trialsOpen access · hybridAbstract readMulticenter StudyRandomized Controlled Trial
In one paragraph

Trial report in Journal of lipid research, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to 3 registered trials, which are not on this map. Cited by 37 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
37citing papers in PubMed, 2 pooled it
9.3field-weighted citation impact, top 2% 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.

NCT00211159 nacompletednot on this map

Omega-3 Fatty Acid Treatment of 174 Patients With Mild to Moderate Alzheimer's Disease (OmegAD): a Randomized Double-blind Trial

TypeinterventionalSponsorKarolinska University HospitalRan2000Enrolled204ConditionsAlzheimer's DiseaseArmsEPAX 1050TG
NCT02719665 nacompletednot on this mapstarted 2016, after this paper: background citation

THE OMEGA-SPM-DOSE and OMEGA-SPM-PAD: Specialized Pro-Resolving Mediators in Patients With Peripheral Artery Disease

TypeinterventionalSponsorUniversity of California, San FranciscoRan2016 to 2020Enrolled30ConditionsPeripheral Arterial Disease, Claudication, Claudication, Intermittent, Vascular OcclusionArmsSPM Emulsion, Dose-modality, SPM Softgel, Dose-Modality, Placebo Softgel
NCT03590769 phase1completednot on this mapstarted 2017, after this paper: background citation

Arterial Imaging of Inflammation and Resolution After Endovascular Surgery

TypeinterventionalSponsorUniversity of California, San FranciscoRan2017 to 2019Enrolled9ConditionsPeripheral Arterial Disease, Claudication, Intermittent, Claudication, PADArms18F-FDG
3 · Its place in the literature

Who cites it

37 citing papers in PubMed, 2 syntheses or guidelines pooled it, 80 citations in OpenAlex.

  1. Pooled it
  2. Omega-3 fatty acids for the treatment of dementia.The Cochrane database of systematic reviews · 2016
    Pooled it
  3. Trial
  4. Review
  5. Review
  6. Article
  7. Review
  8. Review
  9. Article
  10. Effect of a Vegan Diet on Alzheimer's Disease.International journal of molecular sciences · 2022
    Review
  11. Review
  12. Review
  13. Review
  14. Review
  15. Review
  16. Review
  17. Narrative Review ofNutrients · 2021
    Review
  18. Article
  19. Review
  20. Review
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 3 institutions in 2 countries.

Xiuzhe WangDepartment of Neurobiology, Care Sciences and Society, Karolinska Institutet, SE-141 57, Huddinge, Stockholm, Sweden; Department of Neurology, Ruijin Hospital, School of Medicine, Shanghai Jiao Tong University, 200025, Shanghai, China. Electronic address: xiuzhe.wang@ki.se.
Erik HjorthDepartment of Neurobiology, Care Sciences and Society, Karolinska Institutet, SE-141 57, Huddinge, Stockholm, Sweden.
Inger VedinDepartment of Medicine, Karolinska Institutet, Karolinska University Hospital, SE-141 57, Huddinge, Stockholm, Sweden.
Maria EriksdotterDepartment of Neurobiology, Care Sciences and Society, Karolinska Institutet, SE-141 57, Huddinge, Stockholm, Sweden.
Yvonne Freund-LeviDepartment of Neurobiology, Care Sciences and Society, Karolinska Institutet, SE-141 57, Huddinge, Stockholm, Sweden.
Lars-Olof WahlundDepartment of Neurobiology, Care Sciences and Society, Karolinska Institutet, SE-141 57, Huddinge, Stockholm, Sweden.
Tommy CederholmDepartment of Public Health and Caring Sciences, Uppsala University, SE-751 85, Uppsala, Sweden.
Jan PalmbladDepartment of Medicine, Karolinska Institutet, Karolinska University Hospital, SE-141 57, Huddinge, Stockholm, Sweden.
Marianne SchultzbergDepartment of Neurobiology, Care Sciences and Society, Karolinska Institutet, SE-141 57, Huddinge, Stockholm, Sweden.
Karolinska Institutet · SEKarolinska University Hospital · SEUppsala University · SE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Specialized proresolving mediators (SPMs) induce resolution of inflammation. SPMs are derivatives of n-3 and n-6 PUFAs and may mediate their beneficial effects. It is unknown whether supplementation with PUFAs influences the production of SPMs. Alzheimer's disease (AD) is associated with brain inflammation and reduced levels of SPMs. The OmegAD study is a randomized, double-blind, and placebo-controlled clinical trial on AD patients, in which placebo or a supplement of 1.7 g DHA and 0.6 g EPA was taken daily for 6 months. Plasma levels of arachidonic acid decreased, and DHA and EPA levels increased after 6 months of n-3 FA treatment. Peripheral blood mononuclear cells (PBMCs) were obtained before and after the trial. Analysis of the culture medium of PBMCs incubated with amyloid-β 1-40 showed unchanged levels of the SPMs lipoxin A4 and resolvin D1 in the group supplemented with n-3 FAs, whereas a decrease was seen in the placebo group. The changes in SPMs showed correspondence to cognitive changes. Changes in the levels of SPMs were positively correlated to changes in transthyretin. We conclude that supplementation with n-3 PUFAs for 6 months prevented a reduction in SPMs released from PBMCs of AD patients, which was associated with changes in cognitive function.

Indexed as

Alzheimer DiseaseAgedAged, 80 and overAmyloid beta-PeptidesCells, CulturedCognitionDouble-Blind MethodFatty Acids, Omega-3Fatty Acids, Omega-6FemaleHumansInflammation MediatorsLeukocytes, MononuclearMalePeptide FragmentsAmyloid beta-Peptidesamyloid beta-protein (10-40)Fatty Acids, Omega-3Fatty Acids, Omega-6Inflammation MediatorsPeptide FragmentsAlzheimer’s diseaseamyloid βclinical trialsdocosahexaenoic acidfatty acidfish oilinflammationlipoxinnutritionperipheral blood mononuclear cellresolvin

Identifiers

PMID25616438
PMCPMC4340314
OpenAlexW1991917075

What OpenQuestion holds

Textmetadata
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.