Evidence map›Paper›PMID 22364637›Full record

ArticleBrain research2012

Effects of dexpramipexole on brain mitochondrial conductances and cellular bioenergetic efficiency.

Kambiz N Alavian, Steven I Dworetzky, Laura Bonanni, Ping Zhang, Silvio Sacchetti, Maria A Mariggio, Marco Onofrj, Astrid Thomas, Hongmei Li, Jamie E Mangold and 8 more

Open access · greenAbstract read
In one paragraph

Article in Brain research, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed
3.7field-weighted citation impact, top 7% 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

22 citing papers in PubMed, 48 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Article
  6. Dexpramipexole Enhances KMolecular neurobiology · 2021
    Article
  7. Review
  8. Article
  9. Article
  10. Review
  11. Article
  12. Review
  13. Review
  14. Article
  15. Review
  16. Article
  17. Article
  18. Article
  19. Mechanisms, models and biomarkers in amyotrophic lateral sclerosis.Amyotrophic lateral sclerosis & frontotemporal degeneration · 2013
    Review
  20. The elusive magic pill: finding effective therapies for mitochondrial disorders.Neurotherapeutics : the journal of the American Society for Experimental NeuroTherapeutics · 2013
    Review
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

18 authors at 4 institutions in 2 countries.

Kambiz N AlavianDepartment of Internal Medicine, Yale University School of Medicine, New Haven, CT, USA.
Steven I Dworetzky
Laura Bonanni
Ping Zhang
Silvio Sacchetti
Maria A Mariggio
Marco Onofrj
Astrid Thomas
Hongmei Li
Jamie E Mangold
Armando P Signore
Ulrike Demarco
Damon R Demady
Panah Nabili
Emma Lazrove
Peter J S Smith
Valentin K Gribkoff
Elizabeth A Jonas
Knopp Biosciences (United States) · USYale University · USUniversity of Chieti-Pescara · ITMarine Biological Laboratory · US

Funding

Mitochondrial Ion Channels in Hypoxic NeuronsR37NS045876 · NINDS · YALE UNIVERSITY · PI Elizabeth Ann Jonas · 2014 to 2026
$4.9M
Mitochondrial ion channels in hypoxic neuronsR01NS045876 · NINDS · YALE UNIVERSITY · PI JONAS, ELIZABETH ANN · 2004 to 2013
$3.3M
Role of BCL-xL in synaptic plasticity in the hippocampusR01NS064967 · NINDS · YALE UNIVERSITY · PI JONAS, ELIZABETH ANN · 2009 to 2010
$870k
Role of Bcl-xl in synaptic plasticity in the hippocampusR56NS064967 · NINDS · YALE UNIVERSITY · PI JONAS, ELIZABETH ANN · 2012 to 2012
$385k
NINDS NIH HHS NS045876NINDS NIH HHS NS064967NINDS NIH HHS R01 NS045876NINDS NIH HHS R01 NS064967NINDS NIH HHS R37 NS045876NINDS NIH HHS R56 NS064967
6 · The paper itself

Abstract

Cellular stress or injury can result in mitochondrial dysfunction, which has been linked to many chronic neurological disorders including amyotrophic lateral sclerosis (ALS) and Parkinson's disease (PD). Stressed and dysfunctional mitochondria exhibit an increase in large conductance mitochondrial membrane currents and a decrease in bioenergetic efficiency. Inefficient energy production puts cells, and particularly neurons, at risk of death when energy demands exceed cellular energy production. Here we show that the candidate ALS drug dexpramipexole (DEX; KNS-760704; ((6R)-4,5,6,7-tetrahydro-N6-propyl-2,6-benzothiazole-diamine) and cyclosporine A (CSA) inhibited increases in ion conductance in whole rat brain-derived mitochondria induced by calcium or treatment with a proteasome inhibitor, although only CSA inhibited calcium-induced permeability transition in liver-derived mitochondria. In several cell lines, including cortical neurons in culture, DEX significantly decreased oxygen consumption while maintaining or increasing production of adenosine triphosphate (ATP). DEX also normalized the metabolic profile of injured cells and was protective against the cytotoxic effects of proteasome inhibition. These data indicate that DEX increases the efficiency of oxidative phosphorylation, possibly by inhibition of a CSA-sensitive mitochondrial conductance.

Indexed as

Adenosine TriphosphateAdrenergic beta-AntagonistsAnalysis of VarianceAnimalsBiophysical PhenomenaBrainCells, CulturedCell SurvivalCyclosporineDose-Response Relationship, DrugEnergy MetabolismEnzyme InhibitorsHumansMaleMembrane Potential, MitochondrialMiceAdenosine TriphosphateAdrenergic beta-AntagonistsCyclosporineEnzyme InhibitorsOligopeptidesPropranolol

Identifiers

PMID22364637
PMCPMC3746080
OpenAlexW2071628108

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.