Evidence map›Paper›PMID 21246057›Full record

ArticlePloS one2011

Docosahexaenoic acid-derived neuroprotectin D1 induces neuronal survival via secretase- and PPARγ-mediated mechanisms in Alzheimer's disease models.

Yuhai Zhao, Frederic Calon, Carl Julien, Jeremy W Winkler, Nicos A Petasis, Walter J Lukiw, Nicolas G Bazan

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 125 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
125citing papers in PubMed, 1 pooled it
12.5field-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

125 citing papers in PubMed, 1 synthesis or guideline pooled it, 242 citations in OpenAlex.

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  18. Effects of APOE4 on omega-3 brain metabolism across the lifespan.Trends in endocrinology and metabolism: TEM · 2024
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65 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

7 authors at 3 institutions in 2 countries.

Yuhai ZhaoSchool of Medicine, Louisiana State University Health Sciences Center, New Orleans, Louisiana, United States of America.
Frederic Calon
Carl Julien
Jeremy W Winkler
Nicos A Petasis
Walter J Lukiw
Nicolas G Bazan
Louisiana State University Health Sciences Center New Orleans · USCentre hospitalier de l'Université Laval · CAUniversity of Southern California · US

Funding

SYNAPTIC AND EXTRASYNAPTIC NMDA RECEPTORS AND NEUROPROTECTIVE LIPID SIGNALINGP20RR016816 · NCRR · LSU HEALTH SCIENCES CENTER · PI BAZAN, NICOLAS G. · 2002 to 2011
$20.2M
microRNA (miRNA) signaling in Alzheimer's disease(AD)R01AG038834 · NIA · LSU HEALTH SCIENCES CENTER · PI BAZAN, NICOLAS G. · 2011 to 2020
$3.3M
NCRR NIH HHS P20 RR016816NIA NIH HHS R01 AG038834
6 · The paper itself

Abstract

Neuroprotectin D1 (NPD1) is a stereoselective mediator derived from the omega-3 essential fatty acid docosahexaenoic acid (DHA) with potent inflammatory resolving and neuroprotective bioactivity. NPD1 reduces Aβ42 peptide release from aging human brain cells and is severely depleted in Alzheimer's disease (AD) brain. Here we further characterize the mechanism of NPD1's neurogenic actions using 3xTg-AD mouse models and human neuronal-glial (HNG) cells in primary culture, either challenged with Aβ42 oligomeric peptide, or transfected with beta amyloid precursor protein (βAPP)(sw) (Swedish double mutation APP695(sw), K595N-M596L). We also show that NPD1 downregulates Aβ42-triggered expression of the pro-inflammatory enzyme cyclooxygenase-2 (COX-2) and of B-94 (a TNF-α-inducible pro-inflammatory element) and apoptosis in HNG cells. Moreover, NPD1 suppresses Aβ42 peptide shedding by down-regulating β-secretase-1 (BACE1) while activating the α-secretase ADAM10 and up-regulating sAPPα, thus shifting the cleavage of βAPP holoenzyme from an amyloidogenic into the non-amyloidogenic pathway. Use of the thiazolidinedione peroxisome proliferator-activated receptor gamma (PPARγ) agonist rosiglitazone, the irreversible PPARγ antagonist GW9662, and overexpressing PPARγ suggests that the NPD1-mediated down-regulation of BACE1 and Aβ42 peptide release is PPARγ-dependent. In conclusion, NPD1 bioactivity potently down regulates inflammatory signaling, amyloidogenic APP cleavage and apoptosis, underscoring the potential of this lipid mediator to rescue human brain cells in early stages of neurodegenerations.

Indexed as

Neuroprotective AgentsAlzheimer DiseaseAmyloid beta-PeptidesAmyloid beta-Protein PrecursorAmyloid Precursor Protein SecretasesAnimalsCells, CulturedCell SurvivalDisease Models, AnimalDocosahexaenoic AcidsGene Expression RegulationHumansMiceNeurodegenerative DiseasesNeuronsPeptide FragmentsAmyloid beta-Peptidesamyloid beta-protein (1-42)Amyloid beta-Protein PrecursorAmyloid Precursor Protein SecretasesDocosahexaenoic AcidsNeuroprotective AgentsPeptide FragmentsPPAR gammaprotectin D1

Identifiers

PMID21246057
PMCPMC3016440
OpenAlexW2043446856

What OpenQuestion holds

Textmetadata
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.