Evidence map›Paper›PMID 20558294›Full record

ArticleMolecular and cellular neurosciences2010

Circulating neprilysin clears brain amyloid.

Yinxing Liu, Christa Studzinski, Tina Beckett, M Paul Murphy, Ronald L Klein, Louis B Hersh

Open access · greenAbstract read
In one paragraph

Article in Molecular and cellular neurosciences, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 35 papers.

0numbers the graph read from it
0cells of the map it votes in
35citing papers in PubMed
3.1field-weighted citation impact, top 9% 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

35 citing papers in PubMed, 73 citations in OpenAlex.

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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.

Yinxing LiuDepartment of Molecular and Cellular Biochemistry, University of Kentucky, College of Medicine, Lexington, KY 40536-0509, USA.
Christa Studzinski
Tina Beckett
M Paul Murphy
Ronald L Klein
Louis B Hersh
University of Kentucky · USLouisiana State University Health Sciences Center Shreveport · US

Funding

UNDERSTANDING THE MOLECULAR BASIS OF EPIGENETIC TRANSCRIPTIONAL SILENCINGP20RR020171 · NCRR · UNIVERSITY OF KENTUCKY · PI LOUIS HERSH, LOUIS HERSH LOUIS HERSH · 2004 to 2011
$16.5M
DEGRADATION OF OPIOID PEPTIDESR01DA002243 · NIDA · UNIVERSITY OF TEXAS SW MED CTR/DALLAS · PI LOUIS HERSH, LOUIS HERSH LOUIS HERSH · 1985 to 2011
$3.4M
Use of bone marrow stem cells to treat Alz. DisR21AG024899 · NIA · UNIVERSITY OF KENTUCKY · PI HERSH, LOUIS B · 2004 to 2005
$294k
NCRR NIH HHS P20RR02017NCRR NIH HHS P20 RR020171NIA NIH HHS R21 AG024899NIDA NIH HHS DA 02243NIDA NIH HHS R01 DA002243
6 · The paper itself

Abstract

The use of the peptidase neprilysin (NEP) as a therapeutic for lowering brain amyloid burden is receiving increasing attention. We have previously demonstrated that peripheral expression of NEP on the surface of hindlimb muscle lowers brain amyloid burden in a transgenic mouse model of Alzheimer's disease. In this study we now show that using adeno-associated virus expressing a soluble secreted form of NEP (secNEP-AAV8), NEP secreted into plasma is effective in clearing brain Abeta. Soluble NEP expression in plasma was sustained over the 3-month time period it was measured. Secreted NEP decreased plasma Abeta by 30%, soluble brain Abeta by approximately 28%, insoluble brain Abeta by approximately 55%, and Abeta oligomersby 12%. This secNEP did not change plasma levels of substance P or bradykinin, nor did it alter blood pressure. No NEP was detected in CSF, nor did the AAV virus produce brain expression of NEP. Thus the lowering of brain Abeta was due to plasma NEP which altered blood-brain Abeta transport dynamics. Expressing NEP in plasma provides a convenient way to monitor enzyme activity during the course of its therapeutic testing.

Indexed as

Amyloid beta-PeptidesAnimalsBlood-Brain BarrierBlood PressureBradykininBrainBrain ChemistryDependovirusHumansMiceNeprilysinSubstance PAmyloid beta-PeptidesBradykininNeprilysinSubstance P

Identifiers

PMID20558294
PMCPMC2923273
OpenAlexW1975088357

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.