Evidence map›Paper›PMID 23954169›Full record

ArticleNeurobiology of aging2014

Dual-energy precursor and nuclear erythroid-related factor 2 activator treatment additively improve redox glutathione levels and neuron survival in aging and Alzheimer mouse neurons upstream of reactive oxygen species.

Debolina Ghosh, Kelsey R LeVault, Gregory J Brewer

Open access · greenAbstract read
In one paragraph

Article in Neurobiology of aging, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers.

0numbers the graph read from it
0cells of the map it votes in
26citing papers in PubMed
1.6field-weighted citation impact, top 19% 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

26 citing papers in PubMed, 43 citations in OpenAlex.

  1. Article
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  8. The role of Bcl-2 proteins in modulating neuronal CaBiochimica et biophysica acta. Molecular cell research · 2021
    Review
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  12. Review
  13. Role of DJ-1 in the mechanism of pathogenesis of Parkinson's disease.Journal of bioenergetics and biomembranes · 2019
    Review
  14. Article
  15. Article
  16. Review
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  18. Vitamin D, reactive oxygen species and calcium signalling in ageing and disease.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2016
    Review
  19. Review
  20. Article
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

3 authors at 1 institution in 1 country.

Debolina GhoshDepartment of Medical Microbiology, Immunology and Cell Biology, Southern Illinois University School of Medicine, Springfield, IL, USA.
Kelsey R LeVault
Gregory J Brewer
Southern Illinois University School of Medicine · US

Funding

Mitoenergetic Failure in Brain AgingR01AG032431 · NIA · UNIVERSITY OF CALIFORNIA-IRVINE · PI BREWER, GREGORY J · 2009 to 2013
$1.5M
NIA NIH HHS R01 AG032431
6 · The paper itself

Abstract

To determine whether glutathione (GSH) loss or increased reactive oxygen species (ROS) are more important to neuron loss, aging, and Alzheimer's disease (AD), we stressed or boosted GSH levels in neurons isolated from aging 3xTg-AD neurons compared with those from age-matched nontransgenic (non-Tg) neurons. Here, using titrating with buthionine sulfoximine, an inhibitor of γ-glutamyl cysteine synthetase (GCL), we observed that GSH depletion increased neuronal death of 3xTg-AD cultured neurons at increasing rates across the age span, whereas non-Tg neurons were resistant to GSH depletion until old age. Remarkably, the rate of neuron loss with ROS did not increase in old age and was the same for both genotypes, which indicates that cognitive deficits in the AD model were not caused by ROS. Therefore, we targeted for neuroprotection activation of the redox sensitive transcription factor, nuclear erythroid-related factor 2 (Nrf2) by 18 alpha glycyrrhetinic acid to stimulate GSH synthesis through GCL. This balanced stimulation of a number of redox enzymes restored the lower levels of Nrf2 and GCL seen in 3xTg-AD neurons compared with those of non-Tg neurons and promoted translocation of Nrf2 to the nucleus. By combining the Nrf2 activator together with the NADH precursor, nicotinamide, we increased neuron survival against amyloid beta stress in an additive manner. These stress tests and neuroprotective treatments suggest that the redox environment is more important for neuron survival than ROS. The dual neuroprotective treatment with nicotinamide and an Nrf2 inducer indicates that these age-related and AD-related changes are reversible.

Indexed as

Neuroprotective AgentsAgingAlzheimer DiseaseAmyloid beta-PeptidesAnimalsCells, CulturedCell SurvivalDisease Models, AnimalDrug SynergismDrug Therapy, CombinationGlutamate-Cysteine LigaseGlutathioneGlycyrrhetinic AcidMice, Inbred C57BLMice, TransgenicMolecular Targeted TherapyAmyloid beta-PeptidesGlutamate-Cysteine LigaseGlutathioneGlycyrrhetinic AcidNADNeuroprotective AgentsNfe2l2 protein, mouseNF-E2-Related Factor 2NiacinamideReactive Oxygen Species3xTg-ADAgingGlutathioneNeurodegenerationNeuroprotectionNrf2ROSStress

Identifiers

PMID23954169
PMCPMC6099064
OpenAlexW1973434367

What OpenQuestion holds

Textmetadata
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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.