Evidence map›Paper›PMID 18834536›Full record

ArticleMolecular neurodegeneration2008

Molecular signatures of neurodegeneration in the cortex of PS1/PS2 double knockout mice.

Károly Mirnics, Eric M Norstrom, Krassimira Garbett, Se Hoon Choi, Xiaoqiong Zhang, Philip Ebert, Sangram S Sisodia

Open access · goldAbstract read
In one paragraph

Article in Molecular neurodegeneration, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed
1.0field-weighted citation impact, top 23% 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

14 citing papers in PubMed, 22 citations in OpenAlex.

  1. Review
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  11. A role for presenilins in autophagy revisited: normal acidification of lysosomes in cells lacking PSEN1 and PSEN2.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2012
    Article
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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

7 authors at 2 institutions in 1 country.

Károly MirnicsDepartment of Psychiatry, Vanderbilt University, Nashville, TN37232, USA. karoly.mirnics@vanderbilt.edu.
Eric M Norstrom
Krassimira Garbett
Se Hoon Choi
Xiaoqiong Zhang
Philip Ebert
Sangram S Sisodia
University of Chicago · USVanderbilt University · US

Funding

Modulation of ABeta Deposition by Environmental EnrichmentR01AG027854 · NIA · UNIVERSITY OF CHICAGO · PI SISODIA, SANGRAM S. · 2007 to 2011
$2.0M
Uncovering complex expression patterns in schizophreniaK02MH070786 · NIMH · VANDERBILT UNIVERSITY · PI MIRNICS, KAROLY · 2004 to 2008
$527k
NIA NIH HHS R01 AG027854NIMH NIH HHS K02 MH070786
6 · The paper itself

Abstract

backgroundFamilial Alzheimer's disease-linked variants of presenilin (PSEN1 and PSEN2) contribute to the pathophysiology of disease by both gain-of-function and loss-of-function mechanisms. Deletions of PSEN1 and PSEN2 in the mouse forebrain result in a strong and progressive neurodegenerative phenotype which is characterized by both anatomical and behavioral changes.

resultsTo better understand the molecular changes associated with these morphological and behavioral phenotypes, we performed a DNA microarray transcriptome profiling of the hippocampus and the frontal cortex of the PSEN1/PSEN2 double knock-out mice and littermate controls at five different ages ranging from 2-8 months. Our data suggest that combined deficiencies of PSEN1 and PSEN2 results in a progressive, age-dependent transcriptome signature related to neurodegeneration and neuroinflammation. While these events may progress differently in the hippocampus and frontal cortex, the most critical expression signatures are common across the two brain regions, and involve a strong upregulation of cathepsin and complement system transcripts.

conclusionThe observed neuroinflammatory expression changes are likely to be causally linked to the neurodegenerative phenotype observed in mice with compound deletions of PSEN1 and PSEN2. Furthermore, our results suggest that the evaluation of inhibitors of PS/gamma-secretase activity for treatment of Alzheimer's Disease must include close monitoring for signs of calpain-cathepsin system activation.

Identifiers

PMID18834536
PMCPMC2569036
OpenAlexW2097778960

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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.