Evidence map›Paper›PMID 21315807›Full record

Trial reportNeuroscience2011

The moderating role of the dopamine transporter 1 gene on P50 sensory gating and its modulation by nicotine.

A Millar, D Smith, J Choueiry, D Fisher, P Albert, V Knott

Abstract readRandomized Controlled Trial
In one paragraph

Trial report in Neuroscience, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed, 1 pooled it
1.7field-weighted citation impact, top 19% 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

12 citing papers in PubMed, 1 synthesis or guideline pooled it, 27 citations in OpenAlex.

  1. Pooled it
  2. Trial
  3. Trial
  4. Article
  5. Review
  6. Article
  7. Review
  8. Review
  9. Article
  10. Genetic psychophysiology: advances, problems, and future directions.International journal of psychophysiology : official journal of the International Organization of Psychophysiology · 2014
    Review
  11. Article
  12. The Auditory P50 Gating in Mild Cognitive Impairment: A Case-Control Study.American journal of Alzheimer's disease and other dementias
    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

6 authors at 3 institutions in 1 country.

A MillarDepartment of Cellular and Molecular Medicine, University of Ottawa, Ottawa, ON K1S5B6, Canada.
D Smith
J Choueiry
D Fisher
P Albert
V Knott
University of Ottawa · CARoyal Ottawa Mental Health Centre · CACarleton University · CA

Funding

CIHR 115098-1
6 · The paper itself

Abstract

Although schizophrenia has been considered primarily a disease of dopaminergic neurotransmission, the role of dopamine in auditory sensory gating deficits in this disorder and their amelioration by smoking/nicotine is unclear. Hypothesizing that individual differences in striatal dopamine levels may moderate auditory gating and its modulation by nicotine, this preliminary study used the mid-latency (P50) auditory event-related potential (ERP) to examine the single dose (6 mg) effects of nicotine (vs. placebo) gum on sensory gating in 24 healthy nonsmokers varying in the genetic expression of the dopamine transporter (DAT). Consistent with an inverted-U relationship between dopamine level and the drug effects, individuals carrying the 9R (lower gene expression) allele, which is related to greater striatal dopamine levels, tended to evidence increased baseline gating compared to 10R (higher gene expression) allele carriers and showed a reduction in gating with acute nicotine. The present results may help to understand the link between excessive smoking and sensory gating deficits in schizophrenia and to explain the potential functional implications of genetic disposition on nicotinic treatment in schizophrenia.

Indexed as

AdolescentAdultBrainCross-Over StudiesDopamineDopamine Plasma Membrane Transport ProteinsDouble-Blind MethodEvoked Potentials, AuditoryFemaleGenotypeHumansMaleNicotineNicotinic AgonistsPolymerase Chain ReactionSchizophreniaDopamineDopamine Plasma Membrane Transport ProteinsNicotineNicotinic Agonists

Identifiers

PMID21315807
PMCPMC4540592
OpenAlexW2046937689

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.