Evidence map›Paper›PMID 20130094›Full record

Trial reportThe American journal of clinical nutrition2010

Docosahexaenoic acid supplementation increases prefrontal cortex activation during sustained attention in healthy boys: a placebo-controlled, dose-ranging, functional magnetic resonance imaging study.

Robert K McNamara, Jessica Able, Ronald Jandacek, Therese Rider, Patrick Tso, James C Eliassen, David Alfieri, Wade Weber, Kelly Jarvis, Melissa P DelBello and 2 more

3 registry-linked trialsOpen access · bronzeAbstract readRandomized Controlled Trial
In one paragraph

Trial report in The American journal of clinical nutrition, 2010. 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 94 papers, 5 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
94citing papers in PubMed, 5 pooled it
13.4field-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.

NCT00662142 phase3completednot on this map

Effect of 8-Week Dietary DHA Supplementation on Cerebral Blood Flow and Metabolic Function

TypeinterventionalSponsorUniversity of CincinnatiRan2006 to 2008Enrolled30ConditionsHealthy, AttentionArmsdocosahexaenoic acid
NCT02908932 nacompletednot on this mapstarted 2016, after this paper: background citation

Ranger Resilience and Improved Performance on Phospholipid Bound Omega-3's

TypeinterventionalSponsorMedical University of South CarolinaRan2016 to 2018Enrolled555ConditionsNutrition, Fatty Acids, Omega-3, Cognition, Resilience, PsychologicalArmsPhospholipid-bound omega-3 supplement, Placebo supplement
NCT04570995 naterminatednot on this mapstarted 2020, after this paper: background citation

Effect of Docosahexaenoic Acid (DHA) and Eicosapentaenoic Acid (EPA) on Brain Executive Function in Student Athletes

TypeinterventionalSponsorWake Forest University Health SciencesRan2020 to 2020Enrolled22ConditionsBrain Health, Brain Function, Brain DevelopmentArmsFish Oil, Safflower Oil
3 · Its place in the literature

Who cites it

94 citing papers in PubMed, 5 syntheses or guidelines pooled it, 210 citations in OpenAlex.

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

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

12 authors at 2 institutions in 1 country.

Robert K McNamaraDepartment of Psychiatry, Center for Imaging Research, Division of Bipolar Disorders Research, University of Cincinnati College of Medicine, Cincinnati, OH 45219-0516, USA. robert.mcnamara@uc.edu
Jessica Able
Ronald Jandacek
Therese Rider
Patrick Tso
James C Eliassen
David Alfieri
Wade Weber
Kelly Jarvis
Melissa P DelBello
Stephen M Strakowski
Caleb M Adler
University of Cincinnati · USUniversity of Cincinnati Medical Center · US

Funding

LIPID, LIPOPROTEIN, AND GLUCOSE METABOLISM COREU24DK059630 · NIDDK · UNIVERSITY OF CINCINNATI · PI TSO, PATRICK · 2001 to 2015
$12.9M
Lipid profile, lipoprotein and apolipoprotein composition, and intestinal fat absorption efficiency in germ-free and conventional miceU2CDK059630 · NIDDK · UNIVERSITY OF CINCINNATI · PI LIU, MIN · 2016 to 2021
$4.9M
Brain Fatty Acid Composition and PKC ActivityR21MH074858 · NIMH · UNIVERSITY OF CINCINNATI · PI MCNAMARA, ROBERT K. · 2006 to 2007
$377k
NIDDK NIH HHS DK59630NIDDK NIH HHS U24 DK059630NIMH NIH HHS MH074858NIMH NIH HHS R21 MH074858
6 · The paper itself

Abstract

backgroundEmerging evidence suggests that docosahexaenoic acid (DHA, 22:6n-3), the principal omega-3 (n-3) fatty acid in brain gray matter, positively regulates cortical metabolic function and cognitive development. However, the effects of DHA supplementation on functional cortical activity in human subjects are unknown.

objectiveThe objective was to determine the effects of DHA supplementation on functional cortical activity during sustained attention in human subjects.

designHealthy boys aged 8-10 y (n = 33) were randomly assigned to receive placebo or 1 of 2 doses of DHA (400 or 1200 mg/d) for 8 wk. Relative changes in cortical activation patterns during sustained attention at baseline and endpoint were determined by functional magnetic resonance imaging.

resultsAt 8 wk, erythrocyte membrane DHA composition increased significantly from baseline in subjects who received low-dose (by 47%) or high-dose (by 70%) DHA but not in those who received placebo (-11%). During sustained attention, both DHA dose groups had significantly greater changes from baseline in activation of the dorsolateral prefrontal cortex than did the placebo group, and the low-dose and high-dose DHA groups had greater decreases in the occipital cortex and cerebellar cortex, respectively. Relative to low-dose DHA, high-dose DHA resulted in greater decreases in activation of bilateral cerebellum. The erythrocyte DHA composition was positively correlated with dorsolateral prefrontal cortex activation and was inversely correlated with reaction time, at baseline and endpoint.

conclusionDietary DHA intake and associated elevations in erythrocyte DHA composition are associated with alterations in functional activity in cortical attention networks during sustained attention in healthy boys. This trial was registered at clinicaltrials.gov as NCT00662142.

Indexed as

Dietary SupplementsAttentionCerebral CortexChildDocosahexaenoic AcidsErythrocytesHumansMagnetic Resonance ImagingMalePrefrontal CortexReaction TimeReference ValuesDocosahexaenoic Acids

Identifiers

PMID20130094
PMCPMC2844685
OpenAlexW2045104435

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.