Evidence map›Paper›PMID 35413923›Full record

ArticleTrials2022

Transcranial direct current stimulation to modulate brain reactivity to food cues in overweight and obese adults: study protocol for a randomized controlled trial with fMRI (NeuroStim-Obesity).

Peyman Ghobadi-Azbari, Nastaran Malmir, Meghedi Vartanian, Rasoul Mahdavifar-Khayati, Somaye Robatmili, Venus Hadian, Sara Derafsheh, Michael A Nitsche, Masoud Nosratabadi, Ali Farhoudian and 1 more

Open access · goldAbstract readClinical Trial Protocol
In one paragraph

Article in Trials, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed
0.4field-weighted citation impact, top 40% 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

4 citing papers in PubMed, 7 citations in OpenAlex.

  1. 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

11 authors at 6 institutions in 2 countries.

Peyman Ghobadi-Azbari *Department of Biomedical Engineering, Shahed University, Tehran, Iran.
Nastaran Malmir *Iranian National Center for Addiction Studies (INCAS), Tehran University of Medical Sciences, Tehran, Iran. nastaranmalmir@yahoo.com.
Meghedi VartanianDepartment of Clinical Psychology, Tehran University, Tehran, Iran.
Rasoul Mahdavifar-KhayatiDepartment of Biomedical Engineering, Shahed University, Tehran, Iran.
Somaye RobatmiliDepartment of Psychology, Islamic Azad University, Science and Research Branch, Tehran, Iran.
Venus HadianIranian National Center for Addiction Studies (INCAS), Tehran University of Medical Sciences, Tehran, Iran.
Sara DerafshehDepartment of Cognitive Neuroscience, Tabriz University, Tabriz, Iran.
Michael A NitscheDepartment of Psychology and Neurosciences, Leibniz Research Centre for Working Environment and Human Factors, Dortmund, Germany.
Masoud NosratabadiDepartment of Psychology, Paarand Center for Human Enhancement, Tehran, Iran.
Ali FarhoudianDepartment of Psychiatry, Tehran University of Medical Sciences, Tehran, Iran.
Hamed EkhtiariIranian National Center for Addiction Studies (INCAS), Tehran University of Medical Sciences, Tehran, Iran.
Tehran University of Medical Sciences · IRIslamic Azad University, Science and Research Branch · IRShahed University · IRTU Dortmund University · DEUniversity of Tabriz · IRUniversity of Tehran · IR

Funding

Cognitive Sciences and Technologies Council 7761
6 · The paper itself

Abstract

backgroundWith increasing obese populations worldwide, developing interventions to modulate food-related brain processes and functions is particularly important. Evidence suggests that transcranial direct current stimulation (tDCS) over the dorsolateral prefrontal cortex (DLPFC) may modulate the reward-control balance towards facilitation of cognitive control and possible suppression of reward-related mechanisms that drive food cue-induced craving. This protocol describes a clinical trial that investigates the neurocognitive mechanisms of action for tDCS to modulate food cue-reactivity and cravings in people with obesity.

methodThe NeuroStim-Obesity trial is a prospective, randomized, sham-controlled, double-blind single-session tDCS trial targeting food craving in those with obesity or overweighed. Once randomized, 64 adults with obesity or overweighed complete one session in which they receive either active or sham tDCS over the DLPFC (anode F4 and cathode F3, 2 mA intensity for 20 min). The primary outcome is change in neural response to the food cue-reactivity task in the ventral striatum after a single-session bilateral tDCS compared to sham stimulation. Secondary outcomes include changes in food craving evaluated by the Food Craving Questionnaire-State (FCQ-S). We will also explore the predictive role of brain structure and functional networks assessed by structural and functional magnetic resonance imaging (MRI) during both task performance and the resting-state that are acquired pre- and post-intervention to predict response to tDCS. DISCUSSION: The results will provide novel insight into neuroscience for the efficacy of tDCS and will advance the field towards precision medicine for obesity. Exploratory results will examine the potential predictive biomarkers for tDCS response and eventually provide personalized intervention for the treatment of obesity.

trial registrationIranian Registry of Clinical Trials (IRCT) IRCT20121020011172N4 . Retrospectively registered on 4 June 2020.

Indexed as

Transcranial Direct Current StimulationAdultCravingCuesDouble-Blind MethodHumansIranMagnetic Resonance ImagingObesityOverweightPrefrontal CortexProspective StudiesRandomized Controlled Trials as TopicDiffusion tensor imaging (DTI)Dorsolateral prefrontal cortex (DLPFC)Food cravingFunctional magnetic resonance imaging (fMRI)ObesityTranscranial direct current stimulation (tDCS)

Identifiers

PMID35413923
PMCPMC9003175
OpenAlexW4223461015

What OpenQuestion holds

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LicenceCC BY
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Registered trials

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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.