Evidence map›Paper›PMID 11826104›Full record

ArticleThe Journal of neuroscience : the official journal of the Society for Neuroscience2002

Ultrastructure of a somatic spine mat for nicotinic signaling in neurons.

Richard D Shoop, Eduardo Esquenazi, Naoko Yamada, Mark H Ellisman, Darwin K Berg

Open access · bronzeAbstract read
In one paragraph

Article in The Journal of neuroscience : the official journal of the Society for Neuroscience, 2002. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed
1.7field-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

21 citing papers in PubMed, 52 citations in OpenAlex.

  1. Review
  2. Article
  3. Article
  4. Article
  5. Article
  6. α7-Containing and non-α7-containing nicotinic receptors respond differently to spillover of acetylcholine.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2011
    Article
  7. Article
  8. Review
  9. Lateral mobility of nicotinic acetylcholine receptors on neurons is determined by receptor composition, local domain, and cell type.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2010
    Article
  10. Synchronous and asynchronous transmitter release at nicotinic synapses are differentially regulated by postsynaptic PSD-95 proteins.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2009
    Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Rapid activity-driven SNARE-dependent trafficking of nicotinic receptors on somatic spines.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2005
    Article
  18. Article
  19. Transient expression of acetylcholinesterase in the posterior ventral cochlear nucleus of rat brain.Journal of the Association for Research in Otolaryngology : JARO · 2004
    Article
  20. 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

5 authors at 3 institutions in 2 countries.

Richard D ShoopNeurobiology Section, Division of Biology, Department of Neuroscience, University of California, San Diego, La Jolla, California 92093-0357, USA.
Eduardo Esquenazi
Naoko Yamada
Mark H Ellisman
Darwin K Berg
Institute of Neurobiology · BGSociety for Neuroscience · USUniversity of California, San Diego · US

Funding

VOLUMETRIC CONTOUR-BASED SURFACE RECONSTRUCTIONP41RR004050 · NCRR · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI PASQUALE, ELENA B · 1989 to 2011
$28.0M
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
NCRR NIH HHS P41 RR004050NCRR NIH HHS RR04050NINDS NIH HHS NS12601NINDS NIH HHS NS35469NINDS NIH HHS R01 NS012601NINDS NIH HHS R01 NS035469
6 · The paper itself

Abstract

Chick ciliary neurons have somatic spines grouped in discrete clumps or mats tightly folded against the soma and enriched in nicotinic receptors containing alpha7 subunits. An embryonic ciliary neuron has one to two dozen such spine mats, all overlaid by a large presynaptic calyx engulfing the cell. Three-dimensional tomographic reconstruction from serial thick sections revealed 13 somatic spines in one complete spine mat on a ciliary neuron late in embryogenesis. The spines varied in morphology and usually were branched but had numerous similarities to dendritic spines, including mean length, volume, surface area, presence of endoplasmic reticulum, and occasional multivesicular bodies. The spines invariably were connected to the soma via a narrow neck of approximately 0.2 micrometer in diameter as found for dendritic spines, suggesting restricted access from spine lumen to soma. A prominent difference between dendritic and somatic spines is the absence of postsynaptic densities from most somatic spines both on embryonic and adult ciliary neurons. Transmitter access to receptors on the spines may occur either by lateral diffusion from release sites over nearby postsynaptic densities or by release directly onto spines from the overlying calyx lined with vesicles. The latter is less likely in the adult, where some spines are adjacent to but not overlaid by vesicle-enriched presynaptic structures. The anatomical configuration of spine mats suggests coordinate spine activation by transmitter release into a confined volume while spine morphology is used to control the chemical consequences of synaptic signaling.

Indexed as

Microscopy, ElectronReceptors, NicotinicAgingAnimalsCell Surface ExtensionsChick EmbryoChickensGanglia, ParasympatheticImage Processing, Computer-AssistedNeuronsSynaptic TransmissionSynaptic VesiclesReceptors, Nicotinic

Identifiers

PMID11826104
PMCPMC6758519
OpenAlexW1902144670

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.