Evidence map›Paper›PMID 23100436›Full record

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

Presynaptic α4β2 nicotinic acetylcholine receptors increase glutamate release and serotonin neuron excitability in the dorsal raphe nucleus.

Julieta Garduño, Luis Galindo-Charles, Javier Jiménez-Rodríguez, Elvira Galarraga, Dagoberto Tapia, Stefan Mihailescu, Salvador Hernandez-Lopez

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 41 papers.

0numbers the graph read from it
0cells of the map it votes in
41citing papers in PubMed
4.3field-weighted citation impact, top 5% 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

41 citing papers in PubMed, 81 citations in OpenAlex.

  1. Review
  2. Review
  3. Article
  4. Article
  5. The Roles of Serotonin in Neuropsychiatric Disorders.Cellular and molecular neurobiology · 2022
    Review
  6. Article
  7. Mechanism of Electroacupuncture Analgesia on Nicotine Withdrawal-Induced Hyperalgesia in a Rat Model.Evidence-based complementary and alternative medicine : eCAM · 2022
    Article
  8. Article
  9. Review
  10. Review
  11. Endogenous Cholinergic Signaling Modulates Sound-Evoked Responses of the Medial Nucleus of the Trapezoid Body.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2021
    Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Review
  17. Review
  18. Review
  19. 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

7 authors at 2 institutions in 3 countries.

Julieta GarduñoDepartamento de Fisiología, Facultad de Medicina, Universidad Nacional Autónoma de México, 04510 México, DF, México.
Luis Galindo-Charles
Javier Jiménez-Rodríguez
Elvira Galarraga
Dagoberto Tapia
Stefan Mihailescu
Salvador Hernandez-Lopez
Universidad de Antioquia · COUniversidad Nacional Autónoma de México · MX

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Several behavioral effects of nicotine are mediated by changes in serotonin (5-HT) release in brain areas that receive serotonergic afferents from the dorsal raphe nucleus (DRN). In vitro experiments have demonstrated that nicotine increases the firing activity in the majority of DRN 5-HT neurons and that DRN contains nicotinic acetylcholine receptors (nAChRs) located at both somata and presynaptic elements. One of the most common presynaptic effects of nicotine is to increase glutamate release. Although DRN receives profuse glutamatergic afferents, the effect of nicotine on glutamate release in the DRN has not been studied in detail. Using whole-cell recording techniques, we investigated the effects of nicotine on the glutamatergic input to 5-HT DRN neurons in rat midbrain slices. Low nicotine concentrations, in the presence of bicuculline and tetrodotoxin (TTX), increased the frequency but did not change the amplitude of glutamate-induced EPSCs, recorded from identified 5-HT neurons. Nicotine-induced increase of glutamatergic EPSC frequency persisted 10-20 min after drug withdrawal. This nicotinic effect was mimicked by exogenous administration of acetylcholine (ACh) or inhibition of ACh metabolism. In addition, the nicotine-induced increase in EPSC frequency was abolished by blockade of α4β2 nAChRs, voltage-gated calcium channels, or intracellular calcium signaling but not by α7 nAChR antagonists. These data suggest that both nicotine and endogenous ACh can increase glutamate release through activation of presynaptic α4β2 but not α7 nAChRs in the DRN. The effect involves long-term changes in synaptic function, and it is dependent on voltage-gated calcium channels and presynaptic calcium stores.

Indexed as

6-Cyano-7-nitroquinoxaline-2,3-dioneAcetylcholineAconitineAnimalsAnimals, NewbornAtropineBicucullineCadmium ChlorideChelating AgentsCholinergic AgonistsDihydro-beta-ErythroidineEgtazic AcidElectric StimulationEnzyme InhibitorsExcitatory Amino Acid AntagonistsExcitatory Postsynaptic Potentials1,2-bis(2-aminophenoxy)ethane N,N,N',N'-tetraacetic acid acetoxymethyl ester6-Cyano-7-nitroquinoxaline-2,3-dioneAcetylcholineAconitineAtropineBicucullineCadmium ChlorideChelating AgentsCholinergic Agonistscyclopiazonic acidDihydro-beta-ErythroidineEgtazic AcidEnzyme InhibitorsExcitatory Amino Acid AntagonistsGABA AntagonistsGlutamic AcidIndolesmetanicotinemethyllycaconitineMuscarinic AntagonistsNicotineNicotinic Antagonistsnicotinic receptor alpha4beta2PhysostigmineReceptors, NicotinicRyanodineSerotoninSodium Channel BlockersTetrodotoxin

Identifiers

PMID23100436
PMCPMC6704822
OpenAlexW2096390216

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.