Evidence map›Paper›PMID 22036187›Full record

ArticleJournal of psychiatric research2012

Dysbalance of cortical inhibition and excitation in abstinent cocaine-dependent patients.

Klevest Gjini, Ulf Ziemann, T Celeste Napier, Nash Boutros

Open access · greenAbstract read
In one paragraph

Article in Journal of psychiatric research, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed, 1 pooled it
1.9field-weighted citation impact, top 15% 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

13 citing papers in PubMed, 1 synthesis or guideline pooled it, 26 citations in OpenAlex.

  1. Pooled it
  2. Review
  3. Review
  4. Article
  5. Article
  6. Review
  7. Article
  8. Article
  9. Article
  10. Transcranial magnetic stimulation in the treatment of substance addiction.Annals of the New York Academy of Sciences · 2014
    Review
  11. Abnormal interhemispheric connectivity in male psychopathic offenders.Journal of psychiatry & neuroscience : JPN · 2014
    Article
  12. Article
  13. 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

4 authors at 3 institutions in 2 countries.

Klevest GjiniWayne State University, School of Medicine, Department of Psychiatry and Behavioral Neurosciences, 2751 E. Jefferson, Detroit, MI 48207, USA. klevestg@yahoo.com
Ulf Ziemann
T Celeste Napier
Nash Boutros
Wayne State University · USGoethe University Frankfurt · DERush University · US

Funding

Cortical Excitability in Cocaine-Dependent subjectsR01DA019055 · NIDA · WAYNE STATE UNIVERSITY · PI BOUTROS, NASHAAT N · 2006 to 2009
$1.5M
Cortical Excitability in Cocaine-Dependent SubjectsK24DA000520 · NIDA · YALE UNIVERSITY · PI BOUTROS, NASHAAT N · 2002 to 2006
$549k
NIDA NIH HHS K24 DA000520NIDA NIH HHS R01 DA019055
6 · The paper itself

Abstract

The effects of chronic cocaine dependence on cortical inhibitory/excitatory processes are not well characterized. Employing transcranial magnetic stimulation measures of motor cortical excitability, we have previously reported an elevation of motor threshold (MT) suggesting reduced excitability and an increased long-interval intracortical facilitation (LICF) suggesting increased excitability. In the current study, we used an expanded battery of TMS cortical excitability measures to further examine motor cortex excitability in a larger sample of well-characterized and closely monitored for drug use, abstinent cocaine-dependent subjects (N = 52) and healthy controls (N = 42). Furthermore, coil-to-cortex distance was assessed in a subsample of both groups. We verified that long-interval intracortical facilitation (LICF), possibly representing glutamatergic cortical neurotransmission, was significantly increased in cocaine-dependent patients. Significantly longer cortical silent periods (CSP) and elevated MT were also observed while there was no significant abnormality in long-interval intracortical inhibition (LICI). Increased LICF and CSP duration suggest increased cortical excitability and increased inhibition, respectively, of different neurotransmitter systems in cocaine-dependent patients. Increased MT might reflect an adaptation to those effects of cocaine abuse that enhance cortical excitability. Overall, the data point to the complex nature of chronic cocaine dependence on the balance of cortical inhibitory/excitatory mechanisms.

Indexed as

AdultBiophysicsCocaine-Related DisordersElectromyographyEvoked Potentials, MotorFemaleHumansMaleMiddle AgedMotor CortexNeural InhibitionRefractory Period, ElectrophysiologicalTime FactorsTranscranial Magnetic StimulationYoung Adult

Identifiers

PMID22036187
PMCPMC3264814
OpenAlexW2062409569

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.