Evidence map›Paper›PMID 21623665›Full record

ArticleAmyotrophic lateral sclerosis : official publication of the World Federation of Neurology Research Group on Motor Neuron Diseases2011

Talampanel reduces the level of motoneuronal calcium in transgenic mutant SOD1 mice only if applied presymptomatically.

Melinda Paizs, Massimo Tortarolo, Caterina Bendotti, József I Engelhardt, László Siklós

Open access · bronzeAbstract readComparative Study
In one paragraph

Article in Amyotrophic lateral sclerosis : official publication of the World Federation of Neurology Research Group on Motor Neuron Diseases, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed, 1 pooled it
1.3field-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

10 citing papers in PubMed, 1 synthesis or guideline pooled it, 36 citations in OpenAlex.

  1. Pooled it
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  5. Review
  6. Article
  7. Review
  8. Article
  9. Therapeutic neuroprotective agents for amyotrophic lateral sclerosis.Cellular and molecular life sciences : CMLS · 2013
    Review
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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

5 authors at 3 institutions in 2 countries.

Melinda PaizsLaboratory of Molecular Neurobiology, Institute of Biophysics, Biological Research Centre , Szeged , Hungary.
Massimo Tortarolo
Caterina Bendotti
József I Engelhardt
László Siklós
HUN-REN Szegedi Biológiai Kutatóközpont · HUMario Negri Institute for Pharmacological Research · ITUniversity of Szeged · HU

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

We tested the efficacy of treatment with talampanel in a mutant SOD1 mouse model of ALS by measuring intracellular calcium levels and loss of spinal motor neurons. We intended to mimic the clinical study; hence, treatment was started when the clinical symptoms were already present. The data were compared with the results of similar treatment started at a presymptomatic stage. Transgenic and wild-type mice were treated either with talampanel or with vehicle, starting in presymptomatic or symptomatic stages. The density of motor neurons was determined by the physical disector, and their intracellular calcium level was assayed electron microscopically. Results showed that motor neurons in the SOD1 mice exhibited an elevated calcium level, which could be reduced, but not restored, with talampanel only when the treatment was started presymptomatically. Treatment in either presymptomatic or symptomatic stages failed to rescue the motor neurons. We conclude that talampanel reduces motoneuronal calcium in a mouse model of ALS, but its efficacy declines as the disease progresses, suggesting that medication initiation in the earlier stages of the disease might be more effective.

Indexed as

AnimalsBenzodiazepinesCalciumHumansMiceMice, Inbred C57BLMice, Mutant StrainsMice, TransgenicMotor NeuronsSuperoxide DismutaseSuperoxide Dismutase-1BenzodiazepinesCalciumSOD1 protein, humanSod1 protein, mouseSuperoxide DismutaseSuperoxide Dismutase-1talampanel

Identifiers

PMID21623665
PMCPMC3231880
OpenAlexW2169329387

What OpenQuestion holds

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LicenceCC BY
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.