Evidence map›Paper›PMID 21224067›Full record

ArticleThe American journal of pathology2011

Neprilysin-2 is an important β-amyloid degrading enzyme.

Daniel Hafez, Jeffrey Y Huang, Alexis M Huynh, Stephanie Valtierra, Edward Rockenstein, Angela M Bruno, Bao Lu, Luc DesGroseillers, Eliezer Masliah, Robert A Marr

Open access · bronzeAbstract read
In one paragraph

Article in The American journal of pathology, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 38 papers.

0numbers the graph read from it
0cells of the map it votes in
38citing papers in PubMed
3.6field-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

38 citing papers in PubMed, 73 citations in OpenAlex.

  1. Allele specific expression in Alzheimer's disease.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2026
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  11. Amyloid β (Aβ) ELISA of Human iPSC-Derived Neuronal Cultures.Methods in molecular biology (Clifton, N.J.) · 2022
    Article
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  17. Intracellular metalloprotease activity controls intraneuronal Aβ aggregation and limits secretion of Aβ via exosomes.FASEB journal : official publication of the Federation of American Societies for Experimental Biology · 2019
    Article
  18. Review
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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

10 authors at 4 institutions in 2 countries.

Daniel HafezDepartment of Neuroscience, Rosalind Franklin University of Medicine and Science, North Chicago, Illinois 60064, USA.
Jeffrey Y Huang
Alexis M Huynh
Stephanie Valtierra
Edward Rockenstein
Angela M Bruno
Bao Lu
Luc DesGroseillers
Eliezer Masliah
Robert A Marr
Rosalind Franklin University of Medicine and Science · USUniversity of California San Diego · USBoston Children's Hospital · USUniversité de Montréal · CA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Proteases that degrade the amyloid-β peptide (Aβ) are important in protecting against Alzheimer's disease (AD), and understanding these proteases is critical to understanding AD pathology. Endopeptidases sensitive to inhibition by thiorphan and phosphoramidon are especially important, because these inhibitors induce dramatic Aβ accumulation (∼30- to 50-fold) and pathological deposition in rodents. The Aβ-degrading enzyme neprilysin (NEP) is the best known target of these inhibitors. However, genetic ablation of NEP results in only modest increases (∼1.5- to 2-fold) in Aβ, indicating that other thiorphan/phosphoramidon-sensitive endopeptidases are at work. Of particular interest is the NEP homolog neprilysin 2 (NEP2), which is thiorphan/phosphoramidon-sensitive and degrades Aβ. We investigated the role of NEP2 in Aβ degradation in vivo through the use of gene knockout and transgenic mice. Mice deficient for the NEP2 gene showed significant elevations in total Aβ species in the hippocampus and brainstem/diencephalon (∼1.5-fold). Increases in Aβ accumulation were more dramatic in NEP2 knockout mice crossbred with APP transgenic mice. In NEP/NEP2 double-knockout mice, Aβ levels were marginally increased (∼1.5- to 2-fold), compared with NEP(-/-)/NEP2(+/+) controls. Treatment of these double-knockout mice with phosphoramidon resulted in elevations of Aβ, suggesting that yet other NEP-like Aβ-degrading endopeptidases are contributing to Aβ catabolism.

Indexed as

Alzheimer DiseaseAmyloid beta-PeptidesAnimalsGlycopeptidesMiceMice, Inbred BALB CMice, KnockoutNeprilysinPeptide FragmentsAmyloid beta-Peptidesamyloid beta-protein (1-42)GlycopeptidesNeprilysinneprilysin 2, mousePeptide Fragmentsphosphoramidon

Identifiers

PMID21224067
PMCPMC3069828
OpenAlexW2002207246

What OpenQuestion holds

Textmetadata
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.