Evidence map›Paper›PMID 20817496›Full record

ArticleProstaglandins, leukotrienes, and essential fatty acids

Omega-3 fatty acid deficiency increases constitutive pro-inflammatory cytokine production in rats: relationship with central serotonin turnover.

Robert K McNamara, Ronald Jandacek, Therese Rider, Patrick Tso, Allyson Cole-Strauss, Jack W Lipton

Open access · greenAbstract read
In one paragraph

Article in Prostaglandins, leukotrienes, and essential fatty acids. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 44 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
44citing papers in PubMed, 1 pooled it
3.2field-weighted citation impact, top 8% 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

44 citing papers in PubMed, 1 synthesis or guideline pooled it, 112 citations in OpenAlex.

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  19. How lipids may affect risk for suicidal behavior.Journal of psychiatric research · 2018
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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

6 authors at 2 institutions in 1 country.

Robert K McNamaraDepartment of Psychiatry, University of Cincinnati College of Medicine, 260 Stetson Street, Suite 3306, Cincinnati, OH 45219-0516, USA. robert.mcnamara@uc.edu
Ronald Jandacek
Therese Rider
Patrick Tso
Allyson Cole-Strauss
Jack W Lipton
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
Neurochemical Sequelae of Prenatal MDMAR01DA017399 · NIDA · UNIVERSITY OF CINCINNATI · PI LIPTON, JACK WILLIAM · 2005 to 2009
$1.4M
Brain Fatty Acid Composition and PKC ActivityR21MH074858 · NIMH · UNIVERSITY OF CINCINNATI · PI MCNAMARA, ROBERT K. · 2006 to 2007
$377k
Omega-3 Fatty Acid Deficient Rat Model of SchizophreniaR21MH073704 · NIMH · UNIVERSITY OF CINCINNATI · PI MCNAMARA, ROBERT K. · 2006 to 2007
$375k
NIDA NIH HHS DA017399NIDA NIH HHS R01 DA017399NIDDK NIH HHS DK59630NIDDK NIH HHS U24 DK059630NIDDK NIH HHS U2C DK059630NIMH NIH HHS MH073704NIMH NIH HHS MH074858NIMH NIH HHS R21 MH073704NIMH NIH HHS R21 MH074858
6 · The paper itself

Abstract

Omega-3 (n-3) fatty acid deficiency, elevated inflammatory signaling, and central serotonin (5-HT) turnover have separately been implicated in the pathophysiology of major depressive disorder (MDD). In the present study we investigated the interrelationship between n-3 fatty acid status, pro-inflammatory signaling activity, and central 5-HT turnover in vivo. Rats were fed diets with or without the n-3 fatty acid precursor α-linolenic acid (ALA) during perinatal development (E0-P100), and a subset of rats fed the ALA- diet were switched to the ALA+ diet post-weaning (P21-P100, repletion). In adulthood (P100), plasma interleukin-6 (IL-6), tumor necrosis factor-alpha (TNFα), and C-reactive protein (CRP) levels were measured. Additionally, indices of liver n-6 fatty acid biosynthesis, erythrocyte fatty acid composition, and regional brain monoamine turnover were determined. Indices of liver delta-6 desaturase activity were up-regulated in n-3-deficient rats, and were associated with greater erythrocyte membrane arachidonic acid (AA, 20:4 n-6) composition. Plasma IL-6 (p=0.001), TNFα (p=0.02), and CRP (p=0.001) concentrations were significantly greater in n-3-deficient rats relative to controls. The 5-HIAA/5-HT ratio was significantly greater in frontal cortex, hypothalamus, and ventral striatum of n-3-deficient rats relative to controls. Changes in membrane n-3 and n-6 fatty acid composition, elevations in plasma IL-6 and TNFα, and increased central 5-HT turnover were all prevented by normalization of n-3 fatty acid status. Erythrocyte docosahexaenoic acid (DHA, 22:6 n-3) was inversely correlated, and AA and the AA/DHA and AA/eicosapentaenoic acid ratios were positively correlated, with plasma IL-6, TNFα, and CRP levels. Plasma IL-6 levels were positively correlated with 5-HIAA/5-HT ratios in all brain regions. These preclinical data provide evidence for a functional link between n-3 fatty acid deficiency, elevated peripheral inflammatory signaling, and increased central 5-HT turnover.

Indexed as

alpha-Linolenic AcidAnimalsC-Reactive ProteinCytokinesFatty Acids, Omega-3FemaleInflammation MediatorsInterleukin-6LipidsMaleRatsRats, Long-EvansSerotoninTumor Necrosis Factor-alphaalpha-Linolenic AcidC-Reactive ProteinCytokinesFatty Acids, Omega-3Inflammation MediatorsInterleukin-6LipidsSerotoninTumor Necrosis Factor-alpha

Identifiers

PMID20817496
PMCPMC2993848
OpenAlexW2039411479

What OpenQuestion holds

Textmetadata
LicenceTDM
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.