Evidence map›Paper›PMID 22041186›Full record

ArticleThe Journal of physiology2011

Differential effects of Kv7 (M-) channels on synaptic integration in distinct subcellular compartments of rat hippocampal pyramidal neurons.

Mala M Shah, Michele Migliore, David A Brown

Abstract read
In one paragraph

Article in The Journal of physiology, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 31 papers.

0numbers the graph read from it
0cells of the map it votes in
31citing papers in PubMed
1.9field-weighted citation impact, top 16% 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

31 citing papers in PubMed, 56 citations in OpenAlex.

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  15. Modulation of Kv7 channels and excitability in the brain.Cellular and molecular life sciences : CMLS · 2017
    Review
  16. Article
  17. β-Secretase BACE1 regulates hippocampal and reconstituted M-currents in a β-subunit-like fashion.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2015
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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

3 authors at 3 institutions in 2 countries.

Mala M ShahDepartment of Pharmacology, School of Pharmacy, University of London, London, UK. mala.shah@pharmacy.ac.uk
Michele Migliore
David A Brown
National Research Council · ITUniversity College London · GBUniversity of London · GB

Funding

European Research Council 260725Wellcome Trust 063247Wellcome Trust 087363Wellcome Trust WT087363MA
6 · The paper itself

Abstract

The K(V)7/M-current is an important determinant of neuronal excitability and plays a critical role in modulating action potential firing. In this study, using a combination of electrophysiology and computational modelling, we show that these channels selectively influence peri-somatic but not dendritic post-synaptic excitatory synaptic potential (EPSP) integration in CA1 pyramidal cells. K(V)7/M-channels are highly concentrated in axons. However, the competing peptide, ankyrin G binding peptide (ABP) that disrupts axonal K(V)7/M-channel function, had little effect on somatic EPSP integration, suggesting that this effect was due to local somatic channels only. This interpretation was confirmed using computer simulations. Further, in accordance with the biophysical properties of the K(V)7/M-current, the effect of somatic K(V)7/M-channels on synaptic potential summation was dependent upon the neuronal membrane potential. Somatic K(V)7/M-channels thus affect EPSP-spike coupling by altering EPSP integration. Interestingly, disruption of axonal channels enhanced EPSP-spike coupling by lowering the action potential threshold. Hence, somatic and axonal K(V)7/M-channels influence EPSP-spike coupling via different mechanisms. This may be important for their relative contributions to physiological processes such as synaptic plasticity as well as patho-physiological conditions such as epilepsy.

Indexed as

Action PotentialsAnimalsAxonsDendritesExcitatory Postsynaptic PotentialsKCNQ1 Potassium ChannelOligopeptidesPyramidal CellsRatsSynapsesKCNQ1 Potassium ChannelOligopeptides

Identifiers

PMID22041186
PMCPMC3245855
OpenAlexW1947607762

What OpenQuestion holds

Textmetadata
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.