Evidence map›Paper›PMID 32690068›Full record

ArticleAlzheimer's research & therapy2020

CSF levels of the BACE1 substrate NRG1 correlate with cognition in Alzheimer's disease.

François Mouton-Liger, Julien Dumurgier, Emmanuel Cognat, Claire Hourregue, Henrik Zetterberg, Hugo Vanderstichele, Eugeen Vanmechelen, Elodie Bouaziz-Amar, Kaj Blennow, Jacques Hugon and 1 more

Open access · goldAbstract read
In one paragraph

Article in Alzheimer's research & therapy, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed, 1 pooled it
3.3field-weighted citation impact, top 7% 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

20 citing papers in PubMed, 1 synthesis or guideline pooled it, 41 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Review
  4. Article
  5. Article
  6. Article
  7. Article
  8. Exercise to Counteract Alzheimer's Disease: What Do Fluid Biomarkers Say?International journal of molecular sciences · 2024
    Review
  9. Article
  10. Biofluid biomarkers for Alzheimer's disease.Frontiers in aging neuroscience · 2024
    Review
  11. Article
  12. Article
  13. Article
  14. Article
  15. Review
  16. Article
  17. Article
  18. Neuregulin 1 Gene (Cancers · 2021
    Review
  19. Review
  20. Article
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

11 authors at 8 institutions in 4 countries.

François Mouton-LigerInserm U 1144, University de Paris, Paris, France.
Julien DumurgierInserm U 1144, University de Paris, Paris, France.
Emmanuel CognatInserm U 1144, University de Paris, Paris, France.
Claire HourregueUniversité de Paris, Paris, France.
Henrik ZetterbergClinical Neurochemistry Laboratory, Sahlgrenska University Hospital, Mölndal, Sweden.
Hugo VandersticheleADX Neurosciences, Ghent, Belgium.
Eugeen VanmechelenADX Neurosciences, Ghent, Belgium.
Elodie Bouaziz-AmarInserm U 1144, University de Paris, Paris, France.
Kaj BlennowClinical Neurochemistry Laboratory, Sahlgrenska University Hospital, Mölndal, Sweden.
Jacques HugonInserm U 1144, University de Paris, Paris, France. jacques.hugon@inserm.fr.
Claire PaquetInserm U 1144, University de Paris, Paris, France.
Université Paris Cité · FRHôpital Fernand-Widal · FRADx NeuroSciencesADx NeuroSciences · BEAssistance Publique – Hôpitaux de Paris · FRInserm · FRSahlgrenska University Hospital · SEUK Dementia Research Institute · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe presynaptic protein neuregulin1 (NRG1) is cleaved by beta-site APP cleaving enzyme 1 (BACE1) in a similar way as amyloid precursor protein (APP) NRG1 can activate post-synaptic receptor tyrosine-protein kinase erbB4 (ErbB4) and was linked to schizophrenia. The NRG1/ErbB4 complex is neuroprotective, can trigger synaptogenesis and plasticity, increases the expression of NMDA and GABA receptors, and can induce neuroinflammation. This complex can reduce memory formation. In Alzheimer's disease (AD) brains, NRG1 accumulates in neuritic plaques. It is difficult to determine if NRG1 has beneficial and/or detrimental effects in AD. BACE1 levels are increased in AD brains and cerebrospinal fluid (CSF) and may lead to enhanced NRG1 secretion, but no study has assessed CSF NRG1 levels in AD and mild cognitive impairment (MCI) patients.

methodsThis retrospective study included 162 patients suffering from AD dementia (54), MCI with progression to AD dementia (MCI-AD) (27), non-AD MCI (30), non-AD dementias (30), and neurological controls (27). All patients had neurological examinations, brain MRI, and neuropsychological evaluations. After written informed consent and using enzyme-linked immunosorbent assays (ELISAs), CSF samples were evaluated for Aβ1-42, Aβ1-40, total tau (T-tau), phosphorylated tau on threonine 181 (P-tau), BACE1, growth-associated protein 43 (GAP 43), neurogranin (Ng), and NRG1.

resultsLevels of NRG1 were significantly increased in the CSF of AD (+ 36%) and MCI-AD (+ 28%) patients compared to neurological controls and also non-AD MCI and non-AD dementias. In addition, in AD and MCI-AD patients, NRG1 levels positively correlated with Aβ1-42 but not with T-tau, P-tau, and BACE1 levels and negatively correlated with MMSE scores. A longitudinal follow-up study of AD patients revealed a trend (p = 0.08) between CSF NRG1 levels and cognitive decline. In the overall population, NRG1 correlated with MMSE and the synaptic biomarkers GAP 43 and neurogranin.

conclusionsOur results showed that CSF NRG1 levels are increased in AD and MCI-AD as compared to controls and other dementias. CSF NRG1 levels are associated with cognitive evolution, and a major outcome of our findings is that synaptic NRG1 could be involved in the pathophysiology of AD. Modulating brain NRG1 activity may represent a new therapeutic target in AD.

Indexed as

Alzheimer DiseaseCognitive DysfunctionAmyloid beta-PeptidesAmyloid Precursor Protein SecretasesAspartic Acid EndopeptidasesBiomarkersCognitionFollow-Up StudiesHumansNeuregulin-1Peptide FragmentsRetrospective Studiestau ProteinsAmyloid beta-PeptidesAmyloid Precursor Protein SecretasesAspartic Acid EndopeptidasesBACE1 protein, humanBiomarkersNeuregulin-1NRG1 protein, humanPeptide Fragmentstau ProteinsAlzheimer’s diseaseAβBACE1BiomarkersCognitionCSFNRG1

Identifiers

PMID32690068
PMCPMC7372801
OpenAlexW3043119507

What OpenQuestion holds

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LicenceCC BY
Read underepoch 390

Registered trials

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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.