Evidence map›Paper›PMID 22384126›Full record

ArticlePloS one2012

Exendin-4 ameliorates motor neuron degeneration in cellular and animal models of amyotrophic lateral sclerosis.

Yazhou Li, Srinivasulu Chigurupati, Harold W Holloway, Mohamed Mughal, David Tweedie, Daniel A Bruestle, Mark P Mattson, Yun Wang, Brandon K Harvey, Balmiki Ray and 2 more

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 81 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
81citing papers in PubMed, 1 pooled it
7.8field-weighted citation impact, top 2% 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

81 citing papers in PubMed, 1 synthesis or guideline pooled it, 130 citations in OpenAlex.

  1. Pooled it
  2. Review
  3. Review
  4. Targeting neuroinflammation in neurodegenerative disorders: the emerging potential of semaglutide.Inflammation research : official journal of the European Histamine Research Society ... [et al.] · 2026
    Review
  5. Article
  6. Review
  7. Review
  8. From metabolism to mind: The expanding role of the GLP-1 receptor in neurotherapeutics.Neurotherapeutics : the journal of the American Society for Experimental NeuroTherapeutics · 2025
    Review
  9. Targeting Sarcopenia in CKD: The Emerging Role of GLP-1 Receptor Agonists.International journal of molecular sciences · 2025
    Review
  10. Review
  11. Review
  12. Review
  13. Review
  14. Article
  15. Exploring the Role of Metabolic Hormones in Amyotrophic Lateral Sclerosis.International journal of molecular sciences · 2024
    Article
  16. Article
  17. Review
  18. Article
  19. Article
  20. Review

21 more citing papers are in PubMed but not listed here.

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

12 authors at 5 institutions in 1 country.

Yazhou LiLaboratory of Neurosciences, Intramural Research Program, National Institute on Aging, National Institutes of Health, Baltimore, Maryland, United States of America.
Srinivasulu Chigurupati
Harold W Holloway
Mohamed Mughal
David Tweedie
Daniel A Bruestle
Mark P Mattson
Yun Wang
Brandon K Harvey
Balmiki Ray
Debomoy K Lahiri
Nigel H Greig
National Institutes of Health · USNational Institute on Aging · USIndiana University School of MedicineInstitute on Aging · USNational Institute on Drug Abuse · US

Funding

Neuroprotective role of GLP-1 receptor agonists (Neurodegenerative disorders & Alzheimer's disease)ZIAAG000333 · NIA · NATIONAL INSTITUTE ON AGING · PI GREIG, NIGEL H. · 2009 to 2025
$10.9M
Neuroprotective And Neurorestorative Signaling Mechanisms in Alzheimer's DiseaseZIAAG000314 · NIA · NATIONAL INSTITUTE ON AGING · PI MATTSON, MARK · 2009 to 2018
$6.7M
Apoptosis In Neurodegenerative DisordersZIAAG000313 · NIA · NATIONAL INSTITUTE ON AGING · PI MATTSON, MARK · 2009 to 2018
$6.4M
Regulation of APP Pathway Gene Promoters in Alzheimer'sR01AG018379 · NIA · INDIANA UNIV-PURDUE UNIV AT INDIANAPOLIS · PI LAHIRI, DEBOMOY K · 2000 to 2011
$3.1M
Mechanisms of Cholinesterase Inhibitors on Beta-amyloidR01AG018884 · NIA · INDIANA UNIV-PURDUE UNIV AT INDIANAPOLIS · PI LAHIRI, DEBOMOY K · 2002 to 2012
$2.9M
Gene Therapy And NeurodegenerationZIADA000443 · NIDA · NATIONAL INSTITUTE ON DRUG ABUSE · PI HARVEY, BRANDON · 2009 to 2020
$2.7M
Neuroprotective and neuroregenerative effects of trophic factorsZIADA000429 · NIDA · NATIONAL INSTITUTE ON DRUG ABUSE · PI WANG, YUN · 2009 to 2013
$2.4M
Neuroprotective/regenerative effects of small molecules and trophic factorsZIADA000461 · NIDA · NATIONAL INSTITUTE ON DRUG ABUSE · PI WANG, YUN · 2009 to 2013
$2.3M
Effects of over-expression of u-opioid receptor on methamphetamine-sensitizationZIADA000576 · NIDA · NATIONAL INSTITUTE ON DRUG ABUSE · PI WANG, YUN · 2011 to 2013
$557k
Intramural NIH HHSNIA NIH HHS AG18379NIA NIH HHS AG18884NIA NIH HHS R01 AG018379NIA NIH HHS R01 AG018884
6 · The paper itself

Abstract

Amyotrophic lateral sclerosis (ALS) is a devastating neurodegenerative disease characterized by a progressive loss of lower motor neurons in the spinal cord. The incretin hormone, glucagon-like peptide-1 (GLP-1), facilitates insulin signaling, and the long acting GLP-1 receptor agonist exendin-4 (Ex-4) is currently used as an anti-diabetic drug. GLP-1 receptors are widely expressed in the brain and spinal cord, and our prior studies have shown that Ex-4 is neuroprotective in several neurodegenerative disease rodent models, including stroke, Parkinson's disease and Alzheimer's disease. Here we hypothesized that Ex-4 may provide neuroprotective activity in ALS, and hence characterized Ex-4 actions in both cell culture (NSC-19 neuroblastoma cells) and in vivo (SOD1 G93A mutant mice) models of ALS. Ex-4 proved to be neurotrophic in NSC-19 cells, elevating choline acetyltransferase (ChAT) activity, as well as neuroprotective, protecting cells from hydrogen peroxide-induced oxidative stress and staurosporine-induced apoptosis. Additionally, in both wild-type SOD1 and mutant SOD1 (G37R) stably transfected NSC-19 cell lines, Ex-4 protected against trophic factor withdrawal-induced toxicity. To assess in vivo translation, SOD1 mutant mice were administered vehicle or Ex-4 at 6-weeks of age onwards to end-stage disease via subcutaneous osmotic pump to provide steady-state infusion. ALS mice treated with Ex-4 showed improved glucose tolerance and normalization of behavior, as assessed by running wheel, compared to control ALS mice. Furthermore, Ex-4 treatment attenuated neuronal cell death in the lumbar spinal cord; immunohistochemical analysis demonstrated the rescue of neuronal markers, such as ChAT, associated with motor neurons. Together, our results suggest that GLP-1 receptor agonists warrant further evaluation to assess whether their neuroprotective potential is of therapeutic relevance in ALS.

Indexed as

Amyotrophic Lateral SclerosisAnimalsApoptosisCell LineCholine O-AcetyltransferaseDisease Models, AnimalExenatideGlucagon-Like Peptide 1Glucose Tolerance TestHydrogen PeroxideHypoglycemic AgentsInsulinMaleMiceMotor NeuronsOxidative StressCholine O-AcetyltransferaseExenatideGlucagon-Like Peptide 1Hydrogen PeroxideHypoglycemic AgentsInsulinPeptidesSod1 protein, mouseStaurosporineSuperoxide DismutaseSuperoxide Dismutase-1Venoms

Identifiers

PMID22384126
PMCPMC3285661
OpenAlexW2043673143

What OpenQuestion holds

Textmetadata
LicenceCC0
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.