Evidence map›Paper›PMID 23327202›Full record

ArticleMolecular neurodegeneration2013

Aβ impairs nicotinic regulation of inhibitory synaptic transmission and interneuron excitability in prefrontal cortex.

Guo-Jun Chen, Zhe Xiong, Zhen Yan

Open access · goldAbstract read
In one paragraph

Article in Molecular neurodegeneration, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed
1.6field-weighted citation impact, top 17% 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

17 citing papers in PubMed, 29 citations in OpenAlex.

  1. Article
  2. Review
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  4. Relevance of 5-HTCNS drugs · 2021
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  8. AmyloidInternational journal of peptides · 2017
    Article
  9. Article
  10. Article
  11. Article
  12. Review
  13. The γ-secretase complex: from structure to function.Frontiers in cellular neuroscience · 2014
    Review
  14. Article
  15. Article
  16. Article
  17. 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 2 institutions in 2 countries.

Guo-Jun ChenDepartment of Neurology, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China. woodchen2015@163.com
Zhe Xiong
Zhen Yan
University at Buffalo, State University of New York · USFirst Affiliated Hospital of Chongqing Medical University · CN

Funding

The Role of Cholinergic Functions in Alzheimer's DiseaseR01AG021923 · NIA · STATE UNIVERSITY OF NEW YORK AT BUFFALO · PI YAN, ZHEN · 2003 to 2007
$1.7M
NIA NIH HHS AG21923
6 · The paper itself

Abstract

backgroundAccumulation of β-amyloid (Aβ) and cholinergic deficiency are two prominent features of Alzheimer's disease (AD). To understand how Aβ-induced dysfunction of the nicotinic system may contribute to cognitive impairment in AD, we examined the effect of Aβ on nicotinic regulation of synaptic transmission and neuronal excitability in prefrontal cortex (PFC), a brain region critical for cognitive processes.

resultsWe found that activation of nicotinic acetylcholine receptors (nAChRs) with nicotine increased the inhibitory postsynaptic currents recorded in PFC pyramidal neurons, which was associated with the nicotine-induced increase in the excitability of PFC layer I GABAergic interneurons. Both effects of nicotine were disrupted by Aβ. However, Aβ did not impair nicotinic regulation of excitatory neurotransmission in PFC interneurons. The nicotinic effect on synaptic inhibition was also lost in transgenic mice with five familial Alzheimer's disease mutations. Inhibiting PKC attenuated nicotinic regulation of inhibitory, but not excitatory, neurotransmission.

conclusionsOur study suggests that Aβ selectively impairs nicotinic regulation of inhibitory inputs to PFC pyramidal neurons, which might be due to its interference with PKC activation. Thus, in the PFC circuits of AD, the balance between inhibition and excitation under the control of nAChRs may be disturbed by Aβ.

Indexed as

Amyloid beta-PeptidesAnimalsInhibitory Postsynaptic PotentialsMiceMice, TransgenicNicotineNicotinic AgonistsPatch-Clamp TechniquesPrefrontal CortexPyramidal CellsReceptors, NicotinicSynaptic TransmissionAmyloid beta-PeptidesNicotineNicotinic AgonistsReceptors, Nicotinic

Identifiers

PMID23327202
PMCPMC3610117
OpenAlexW2031040530

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.