Evidence map›Paper›PMID 20298691›Full record

ArticleExperimental neurology2010

RNAi targeting micro-calpain increases neuron survival and preserves hippocampal function after global brain ischemia.

Matthew B Bevers, Lori P Ingleton, Dongfang Che, Jeffrey T Cole, Luchuan Li, Tong Da, Catherine M Kopil, Akiva S Cohen, Robert W Neumar

Abstract read
In one paragraph

Article in Experimental neurology, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed
2.5field-weighted citation impact, top 12% 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

19 citing papers in PubMed, 27 citations in OpenAlex.

  1. In Vivo Calpain Knockdown Using Delivery of siRNA.Methods in molecular biology (Clifton, N.J.) · 2019
    Article
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  3. Review
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  5. Article
  6. Article
  7. Review
  8. Article
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  10. Gene delivery with viral vectors for cerebrovascular diseases.Frontiers in bioscience (Elite edition) · 2013
    Review
  11. Article
  12. Article
  13. Article
  14. Article
  15. RNA interference and ischemic injury.Molecular biology reports · 2012
    Review
  16. Article
  17. Article
  18. Article
  19. Review
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

9 authors at 2 institutions in 1 country.

Matthew B BeversCenter for Resuscitation Science, Department of Emergency Medicine, University of Pennsylvania School of Medicine, Ground Ravdin, 3400 Spruce Street, Philadelphia, PA 19104, USA.
Lori P Ingleton
Dongfang Che
Jeffrey T Cole
Luchuan Li
Tong Da
Catherine M Kopil
Akiva S Cohen
Robert W Neumar
University of Pennsylvania · USChildren's Hospital of Philadelphia · US

Funding

Vector CoreP30DK047757 · NIDDK · UNIVERSITY OF PENNSYLVANIA · PI CALCEDO, ROBERTO · 1993 to 2017
$18.0M
Injury-Induced Alterations in Limbic Functional CircuityR37HD059288 · NICHD · CHILDREN'S HOSP OF PHILADELPHIA · PI COHEN, AKIVA S · 2014 to 2023
$4.3M
CALPAIN-MEDIATED INJURY IN POST-ISCHEMIC NEURONSR01NS039481 · NINDS · UNIVERSITY OF PENNSYLVANIA · PI NEUMAR, ROBERT W. · 2000 to 2008
$3.0M
Injury-induced Alterations in Limbic Functional CircuityR01HD059288 · NICHD · CHILDREN'S HOSP OF PHILADELPHIA · PI COHEN, AKIVA S · 2008 to 2012
$1.6M
NICHD NIH HHS HD059288NICHD NIH HHS R01 HD059288NICHD NIH HHS R37 HD059288NIDDK NIH HHS P30 DK047757NIDDK NIH HHS P30-DK-047757-14NINDS NIH HHS NS039481NINDS NIH HHS R01 NS039481
6 · The paper itself

Abstract

The calpain family of cysteine proteases has a well-established causal role in neuronal cell death following acute brain injury. However, the relative contribution of calpain isoforms has not been determined in in vivo models. Identification of the calpain isoform responsible for neuronal injury is particularly important given the differential role of calpain isoforms in normal physiology. This study evaluates the role of m-calpain and micro-calpain in an in vivo model of global brain ischemia. Adeno-associated viral vectors expressing short hairpin RNAs targeting the catalytic subunits of micro- or m-calpain were used to knockdown expression of the targeted isoforms in adult rat hippocampal CA1 pyramidal neurons. Knockdown of micro-calpain, but not m-calpain, prevented calpain activity 72 h after 6-min transient forebrain ischemia, increased long-term survival and protected hippocampal electrophysiological function. These findings represent the first in vivo evidence that reducing expression of an individual calpain isoform can decrease post-ischemic neuronal death and preserve hippocampal function.

Indexed as

Analysis of VarianceAnimalsBrain IschemiaCalpainCells, CulturedCell SurvivalDependovirusElectrophysiologyFluorescent Antibody TechniqueGenetic VectorsHippocampusMaleNeuronsProtein IsoformsRatsRNA InterferenceCalpainProtein IsoformsRNA, Small Interfering

Identifiers

PMID20298691
PMCPMC2885584
OpenAlexW2013762878

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.