Evidence map›Paper›PMID 22699919›Full record

ArticleThe Journal of neuroscience : the official journal of the Society for Neuroscience2012

Induction of dendritic spines by β2-containing nicotinic receptors.

Adrian F Lozada, Xulong Wang, Natalia V Gounko, Kerri A Massey, Jingjing Duan, Zhaoping Liu, Darwin K Berg

Open access · bronzeAbstract read
In one paragraph

Article in The Journal of neuroscience : the official journal of the Society for Neuroscience, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 43 papers.

0numbers the graph read from it
0cells of the map it votes in
43citing papers in PubMed
3.6field-weighted citation impact, top 6% 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

43 citing papers in PubMed, 69 citations in OpenAlex.

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  19. Genetic Deletion of GABAFrontiers in cellular neuroscience · 2019
    Article
  20. [β2-nicotinic acetylcholine receptor promotes development of GABANan fang yi ke da xue xue bao = Journal of Southern Medical University · 2018
    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

7 authors at 4 institutions in 2 countries.

Adrian F LozadaNeurobiology Section, Division of Biological Sciences, University of California, San Diego, La Jolla, California 92093-0357, USA.
Xulong Wang
Natalia V Gounko
Kerri A Massey
Jingjing Duan
Zhaoping Liu
Darwin K Berg
University of California, San Diego · USIntel (United States) · USScripps Research Institute · USSun Yat-sen University · CN

Funding

Signal Transduction at Neuronal Nicotinic SynapsesR01NS012601 · NINDS · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI BERG, DARWIN K · 1985 to 2016
$5.3M
Nicotinic Control of Non-Nicotinic Synapses in the HippocampusR01NS035469 · NINDS · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI BERG, DARWIN K · 1996 to 2013
$4.8M
TRANSMISSIONS AND MORPHOLOGICAL STUDIES OF HUMN DEMENTIASP01NS034569 · NINDS · YALE UNIVERSITY · PI MANUELIDIS, LAURA · 1995 to 1999
–
NIDA NIH HHS DA237482NINDS NIH HHS NS012601NINDS NIH HHS NS034569NINDS NIH HHS R01 NS012601NINDS NIH HHS R01 NS035469
6 · The paper itself

Abstract

Glutamatergic synapses are located mostly on dendritic spines in the adult nervous system. The spines serve as postsynaptic compartments, containing components that mediate and control the synaptic signal. Early in development, when glutamatergic synapses are initially forming, waves of excitatory activity pass through many parts of the nervous system and are driven in part by a class of heteropentameric β2-containing nicotinic acetylcholine receptors (β2*-nAChRs). These β2*-nAChRs are widely distributed and, when activated, can depolarize the membrane and elevate intracellular calcium levels in neurons. We show here that β2*-nAChRs are essential for acquisition of normal numbers of dendritic spines during development. Mice constitutively lacking the β2-nAChR gene have fewer dendritic spines than do age-matched wild-type mice at all times examined. Activation of β2*-nAChRs by nicotine either in vivo or in organotypic slice culture quickly elevates the number of spines. RNA interference studies both in vivo and in organotypic culture demonstrate that the β2*-nAChRs act in a cell-autonomous manner to increase the number of spines. The increase depends on intracellular calcium and activation of calcium, calmodulin-dependent protein kinase II. Absence of β2*-nAChRs in vivo causes a disproportionate number of glutamatergic synapses to be localized on dendritic shafts, rather than on spines as occurs in wild type. This shift in synapse location is found both in the hippocampus and cortex, indicating the breadth of the effect. Because spine synapses differ from shaft synapses in their signaling capabilities, the shift observed is likely to have significant consequences for network function.

Indexed as

AnimalsCalciumCalcium-Calmodulin-Dependent Protein Kinase Type 2Calcium SignalingCells, CulturedCerebral CortexDendritic SpinesGlutamic AcidHippocampusMiceMice, KnockoutNeuronsNicotineProtein SubunitsReceptors, NicotinicRNA, Small InterferingCalciumCalcium-Calmodulin-Dependent Protein Kinase Type 2Glutamic AcidNicotineProtein SubunitsReceptors, NicotinicRNA, Small Interfering

Identifiers

PMID22699919
PMCPMC3387687
OpenAlexW2088228824

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.