Evidence map›Paper›PMID 28900242›Full record

ArticleScientific reports2017

Dietary docosahexaenoic acid (DHA) as lysophosphatidylcholine, but not as free acid, enriches brain DHA and improves memory in adult mice.

Dhavamani Sugasini, Riya Thomas, Poorna C R Yalagala, Leon M Tai, Papasani V Subbaiah

Open access · goldAbstract read
In one paragraph

Article in Scientific reports, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 85 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
85citing papers in PubMed, 2 pooled it
9.0field-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

85 citing papers in PubMed, 2 syntheses or guidelines pooled it, 182 citations in OpenAlex.

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25 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

5 authors at 1 institution in 1 country.

Dhavamani SugasiniDepartment of Medicine, University of Illinois at Chicago, Chicago, IL, USA.
Riya ThomasDepartment of Anatomy and Cell Biology, University of Illinois at Chicago, Chicago, IL, USA.
Poorna C R YalagalaDepartment of Medicine, University of Illinois at Chicago, Chicago, IL, USA.
Leon M TaiDepartment of Anatomy and Cell Biology, University of Illinois at Chicago, Chicago, IL, USA.
Papasani V SubbaiahDepartment of Medicine, University of Illinois at Chicago, Chicago, IL, USA. psubbaia@uic.edu.ORCID 0000-0002-9376-8582
University of Illinois Chicago · US

Funding

Purchase of AB Sciex QTRAP 5500 SystemS10OD010660 · OD · UNIVERSITY OF ILLINOIS AT CHICAGO · PI SUBBAIAH, PAPASANI V · 2012 to 2012
$440k
Molecular Form of Dietary DHA and its Bioavailability for the BrainR21AT008457 · NCCIH · UNIVERSITY OF ILLINOIS AT CHICAGO · PI SUBBAIAH, PAPASANI V · 2014 to 2015
$431k
Role of Membrane Modifications in the Bioactivities of Conjugated Linoleic AcidsI01BX001090 · VA · JESSE BROWN VA MEDICAL CENTER · PI SUBBAIAH, PAPASANI V · 2013 to 2016
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BLRD VA I01 BX001090NCCIH NIH HHS R21 AT008457NIH HHS S10 OD010660
6 · The paper itself

Abstract

Docosahexaenoic acid (DHA) is uniquely concentrated in the brain, and is essential for its function, but must be mostly acquired from diet. Most of the current supplements of DHA, including fish oil and krill oil, do not significantly increase brain DHA, because they are hydrolyzed to free DHA and are absorbed as triacylglycerol, whereas the transporter at blood brain barrier is specific for phospholipid form of DHA. Here we show that oral administration of DHA to normal adult mice as lysophosphatidylcholine (LPC) (40 mg DHA/kg) for 30 days increased DHA content of the brain by >2-fold. In contrast, the same amount of free DHA did not increase brain DHA, but increased the DHA in adipose tissue and heart. Moreover, LPC-DHA treatment markedly improved the spatial learning and memory, as measured by Morris water maze test, whereas free DHA had no effect. The brain derived neurotrophic factor increased in all brain regions with LPC-DHA, but not with free DHA. These studies show that dietary LPC-DHA efficiently increases brain DHA content and improves brain function in adult mammals, thus providing a novel nutraceutical approach for the prevention and treatment of neurological diseases associated with DHA deficiency, such as Alzheimer's disease.

Indexed as

Dietary SupplementsAnimalsAscorbic AcidBrainBrain ChemistryDocosahexaenoic AcidsLysophosphatidylcholinesMemoryMiceSpatial LearningAscorbic AcidDocosahexaenoic Acidsdocosahexaenoylascorbic acidLysophosphatidylcholines

Identifiers

PMID28900242
PMCPMC5596017
OpenAlexW2753001826

What OpenQuestion holds

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LicenceCC BY
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.