Evidence map›Paper›PMID 10964949›Full record

ArticleThe Journal of neuroscience : the official journal of the Society for Neuroscience2000

Phenotypic characterization of an alpha 4 neuronal nicotinic acetylcholine receptor subunit knock-out mouse.

S A Ross, J Y Wong, J J Clifford, A Kinsella, J S Massalas, M K Horne, I E Scheffer, I Kola, J L Waddington, S F Berkovic and 1 more

Open access · greenAbstract read
In one paragraph

Article in The Journal of neuroscience : the official journal of the Society for Neuroscience, 2000. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 100 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
100citing papers in PubMed, 1 pooled it
6.1field-weighted citation impact, top 3% 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

100 citing papers in PubMed, 1 synthesis or guideline pooled it, 231 citations in OpenAlex.

  1. Association of CHRNA4 polymorphisms with smoking behavior in two populations.American journal of medical genetics. Part B, Neuropsychiatric genetics : the official publication of the International Society of Psychiatric Genetics · 2011
    Pooled it
  2. Trial
  3. Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Review
  13. Article
  14. Review
  15. The Neurochemistry of Autism.Brain sciences · 2020
    Article
  16. Article
  17. Article
  18. Potentiation of a neuronal nicotinic receptor via pseudo-agonist site.Cellular and molecular life sciences : CMLS · 2019
    Article
  19. Reduced α4 subunit expression in α4British journal of pharmacology · 2018
    Article
  20. Article

40 more citing papers are in PubMed but not listed here.

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

11 authors at 1 institution in 1 country.

S A RossNeurosciences Group, Monash University Department of Medicine and Institute of Reproduction and Development, Monash Medical Centre, Clayton, Victoria, 3168, Australia.
J Y Wong
J J Clifford
A Kinsella
J S Massalas
M K Horne
I E Scheffer
I Kola
J L Waddington
S F Berkovic
J Drago
Monash Institute of Medical Research · AU

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Neuronal nicotinic acetylcholine receptors (nAChR) are present in high abundance in the nervous system (Decker et al., 1995). There are a large number of subunits expressed in the brain that combine to form multimeric functional receptors. We have generated an alpha(4) nAChR subunit knock-out line and focus on defining the behavioral role of this receptor subunit. Homozygous mutant mice (Mt) are normal in size, fertility, and home-cage behavior. Spontaneous unconditioned motor behavior revealed an ethogram characterized by significant increases in several topographies of exploratory behavior in Mt relative to wild-type mice (Wt) over the course of habituation to a novel environment. Furthermore, the behavior of Mt in the elevated plus-maze assay was consistent with increased basal levels of anxiety. In response to nicotine, Wt exhibited early reductions in a number of behavioral topographies, under both unhabituated and habituated conditions; conversely, heightened levels of behavioral topographies in Mt were reduced by nicotine in the late phase of the unhabituated condition. Ligand autoradiography confirmed the lack of high-affinity binding to radiolabeled nicotine, cytisine, and epibatidine in the thalamus, cortex, and caudate putamen, although binding to a number of discrete nuclei remained. The study confirms the pivotal role played by the alpha(4) nAChR subunit in the modulation of a number of constituents of the normal mouse ethogram and in anxiety as assessed using the plus-maze. Furthermore, the response of Mt to nicotine administration suggests that persistent nicotine binding sites in the habenulo-interpeduncular system are sufficient to modulate motor activity in actively exploring mice.

Indexed as

AggressionAlkaloidsAnimalsAutoradiographyAzocinesBase SequenceBody ConstitutionBrainBridged Bicyclo Compounds, HeterocyclicBungarotoxinsExploratory BehaviorFemaleFertilityHabituation, PsychophysiologicHomozygoteMaleAlkaloidsAzocinesBridged Bicyclo Compounds, HeterocyclicBungarotoxinscytisineepibatidineNicotineOligonucleotide ProbesPyridinesQuinolizidine AlkaloidsQuinolizinesReceptors, NicotinicTritium

Identifiers

PMID10964949
PMCPMC6772952
OpenAlexW1928234338

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.