Evidence map›Paper›PMID 27085606›Full record

Trial reportNeuropharmacology2016

Nicotine restores functional connectivity of the ventral attention network in schizophrenia.

Jason Smucny, Ann Olincy, Jason R Tregellas

Abstract readRandomized Controlled Trial
In one paragraph

Trial report in Neuropharmacology, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed, 1 pooled it
1.2field-weighted citation impact, top 20% 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

10 citing papers in PubMed, 1 synthesis or guideline pooled it, 14 citations in OpenAlex.

  1. Pooled it
  2. Trial
  3. Article
  4. Article
  5. Review
  6. Review
  7. Review
  8. Article
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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

3 authors at 2 institutions in 1 country.

Jason SmucnyNeuroscience Program, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA; Department of Psychiatry, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA. Electronic address: Jason.smucny@ucdenver.edu.
Ann OlincyResearch Service, Denver VA Medical Center, Denver, CO 80220, USA; Department of Psychiatry, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA.
Jason R TregellasNeuroscience Program, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA; Research Service, Denver VA Medical Center, Denver, CO 80220, USA; Department of Psychiatry, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA.
University of Colorado Anschutz Medical Campus · USDenver VA Medical Center · US

Funding

Neuronal Effects of Exercise on SchizophreniaR01MH102224 · NIMH · UNIVERSITY OF COLORADO DENVER · PI TREGELLAS, JASON R · 2014 to 2018
$1.9M
Nicotinic Agonist Effects on BMI and Neuronal Response in Overweight/Obese AdultsR01DK103691 · NIDDK · UNIVERSITY OF COLORADO DENVER · PI TREGELLAS, JASON R · 2015 to 2019
$1.9M
Neuronal and Behavioral Effects of Implicit Priming in Obese IndividualsR21DK102052 · NIDDK · UNIVERSITY OF COLORADO DENVER · PI TREGELLAS, JASON R · 2014 to 2015
$427k
Functional Imaging of the Nicotinic Basis for Attention Deficits in SchizophreniaF31MH102879 · NIMH · UNIVERSITY OF COLORADO DENVER · PI SMUCNY, JASON · 2014 to 2016
$76k
fMRI of Cholinergic Mechanisms in SchizophreniaI01CX000459 · VA · VA EASTERN COLORADO HEALTH CARE SYSTEM · PI TREGELLAS, JASON R · 2011 to 2015
–
CSRD VA I01 CX000459Intramural VA VA999999NIDDK NIH HHS R01 DK103691NIDDK NIH HHS R21 DK102052NIMH NIH HHS F31 MH102879NIMH NIH HHS R01 MH102224
6 · The paper itself

Abstract

While previous work has suggested that nicotine may transiently improve attention deficits in schizophrenia, the neuronal mechanisms are poorly understood. This study is the first to examine the effects of nicotine on connectivity within the ventral attention network (VAN) during a selective attention task in schizophrenia. Using a crossover design, 17 nonsmoking patients with schizophrenia and 20 age/gender-matched nonsmoking healthy controls performed a go/no-go task with environmental noise distractors during application of a 7 mg nicotine or placebo patch. Psychophysiological interaction analysis was performed to analyze task-associated changes in connectivity between a ventral parietal cortex (VPC) seed and the inferior frontal gyrus (IFG), key components of the human VAN. Effects of nicotine on resting state VAN connectivity were also examined. A significant diagnosis × drug interaction was observed on task-associated connectivity between the VPC seed and the left IFG (F(1,35) = 8.03, p < 0.01). This effect was driven by decreased connectivity after placebo in patients and greater connectivity after nicotine. Resting state connectivity analysis showed a significant main effect of diagnosis between the seed and right IFG (F = 4.25, p = 0.023) due to increased connectivity in patients during placebo, but no drug × diagnosis interactions or main effects of drug. This study is the first to demonstrate that 1) the VAN is disconnected in schizophrenia during selective attention, and 2) nicotine may normalize this pathological state.

Indexed as

Acoustic StimulationAdultAttentionBrainCross-Over StudiesFemaleHumansMagnetic Resonance ImagingMaleMiddle AgedNerve NetNicotinePsychomotor PerformanceSchizophreniaSingle-Blind MethodTobacco Use Cessation DevicesNicotineAttentionConnectivityfMRINicotineSchizophreniaVentral attention network

Identifiers

PMID27085606
PMCPMC4912919
OpenAlexW2336758131

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.