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Dive into the research topics where Marie Grall-Bronnec is active.

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Featured researches published by Marie Grall-Bronnec.


European Addiction Research | 2011

Attention deficit hyperactivity disorder among pathological and at-risk gamblers seeking treatment: a hidden disorder.

Marie Grall-Bronnec; Laura Wainstein; Jennyfer Augy; Gaëlle Bouju; Fanny Feuillet; Jean-Luc Venisse; Véronique Sébille-Rivain

Background: The links between attention deficit hyperactivity disorder (ADHD) and substance use disorders have been the subject of numerous papers. Few studies, however, have focused specifically on the relationship between ADHD and behavioural addictions. The aim of this study was to (i) examine the frequency of pathological and at-risk gamblers having a previous history of ADHD; (ii) give details of the characteristics of this association, and (iii) identify risk factors for a history of ADHD. Methods: 84 pathological and at-risk gamblers were assessed about socio-demographic, gambling and clinical characteristics. Results: Over 25% of the subjects had a history of ADHD. They were characterized as having more severe gambling problems and a higher level of gambling-related cognitions, a higher frequency of psychiatric comorbidities and an elevated risk of suicide. Finally, they differed in their level and type of impulsivity. Among pathological and at-risk gamblers, a high level of impulsivity, or a history of anxiety disorders, constitute risk factors for a comorbidity with ADHD. Conclusion: The association ‘ADHD-problem gambling’ therefore appears to be not only frequent, but also linked to factors that are known to worsen the prognosis. Researching this relationship is therefore important to adapt strategies for effective future therapy.


Journal of Gambling Studies | 2012

Clinical Profiles as a Function of Level and Type of Impulsivity in a Sample Group of At-risk and Pathological Gamblers Seeking Treatment

Marie Grall-Bronnec; Laura Wainstein; Fanny Feuillet; Gaëlle Bouju; Bruno Rocher; Jean-Luc Venisse; Véronique Sébille-Rivain

Level and type of impulsivity are essential variables to be taken into consideration during the initial evaluation of a pathological gambler. The aim of this study was to measure the score for 4 impulsivity-related traits (Urgency, (lack of) Premeditation, (lack of) Perseverance and Sensation seeking) in a sample group of at-risk and pathological gamblers, and to highlight any links with certain elements of clinical data. The UPPS Impulsive Behaviour Scale was administered to 84 problem gamblers seeking treatment. The severity of gambling disorders was evaluated using the diagnostic criteria of the DSM-IV. Psychiatric and addictive comorbidities were also explored. The results indicated that the score for the Urgency facet had a positive correlation with the severity of gambling disorders. It appeared that participants displayed different clinical profiles according to the level and type of impulsivity. Several of the UPPS scales were identified as risk factors for mood disorders, risk of suicide, alcohol use disorders, and Attention Deficit/Hyperactivity Disorder (ADHD). The results confirm both the complexity of the multi-dimensional concept of impulsivity and the reason why the UPPS is of interest for a more in-depth study of the subject.


European Journal of Clinical Pharmacology | 2013

Pharmacoepidemiological characterisation of zolpidem and zopiclone usage

Caroline Victorri-Vigneau; Fanny Feuillet; Laura Wainstein; Marie Grall-Bronnec; Jacques Pivette; Anicet Chaslerie; Véronique Sébille; Pascale Jolliet

PurposeZolpidem and zopiclone are two widely used non-benzodiazepine hypnotics whose usage seems to be associated to pharmacodependence. However, to our knowledge, there has as yet been no published epidemiological study which has compared their abuse or dependence potential. We used a pharmacoepidemiological approach to identify and characterise zolpidem and zopiclone users in real life situations.MethodsRegular users of zolpidem or zopiclone were identified in the database of a French regional health insurance organisation. A latent class analysis (LCA) was used to identify different subgroups of users of these two hypnotics.ResultsThe study cohort comprised 25,168 patients who regularly used zolpidem and 21,860 who regularly used zopiclone. The results of the latent class analysis, which enables subgroups with similar patterns of response to be identified, revealed four clinical subtypes of users of zolpidem: non-problematic users, users with associations with hypnotics/anxiolytics or with associated mental disorders, and problematic users. Only three subgroups were identified for zopiclone, and LCA did not discriminate a special class of problematic users for this drug.ConclusionOur analysis indicates that there is a subclass of zolpidem user suggestive of abuse; this was not the case for zopiclone. This methodology is very interesting because it allows analysis of databases and determination of a specific signature of drugs potentially leading to abuse or dependence.


Frontiers in Neuroscience | 2015

Transcranial direct current stimulation (tDCS) in behavioral and food addiction: a systematic review of efficacy, technical, and methodological issues.

Anne Sauvaget; Benoit Trojak; Samuel Bulteau; Susana Jiménez-Murcia; Fernando Fernández-Aranda; Ines Wolz; José M. Menchón; Sophia Achab; Jean-Marie Vanelle; Marie Grall-Bronnec

Objectives: Behavioral addictions (BA) are complex disorders for which pharmacological and psychotherapeutic treatments have shown their limits. Non-invasive brain stimulation, among which transcranial direct current stimulation (tDCS), has opened up new perspectives in addiction treatment. The purpose of this work is to conduct a critical and systematic review of tDCS efficacy, and of technical and methodological considerations in the field of BA. Methods: A bibliographic search has been conducted on the Medline and ScienceDirect databases until December 2014, based on the following selection criteria: clinical studies on tDCS and BA (namely eating disorders, compulsive buying, Internet addiction, pathological gambling, sexual addiction, sports addiction, video games addiction). Study selection, data analysis, and reporting were conducted according to the PRISMA guidelines. Results: Out of 402 potential articles, seven studies were selected. So far focusing essentially on abnormal eating, these studies suggest that tDCS (right prefrontal anode/left prefrontal cathode) reduces food craving induced by visual stimuli. Conclusions: Despite methodological and technical differences between studies, the results are promising. So far, only few studies of tDCS in BA have been conducted. New research is recommended on the use of tDCS in BA, other than eating disorders.


Journal of Addictive Diseases | 2014

An Update on Zolpidem Abuse and Dependence

Caroline Victorri-Vigneau; Marie Gérardin PharmD; Morgane Rousselet; Marylène Guerlais PharmD; Marie Grall-Bronnec; Pascale Jolliet

In 2004, the health authorities (French National Agency for Medicines and Health Products Safety—ANSM) modified the summary of zolpidem characteristics. Particularly it now includes the sentence “a pharmacodependence may materialize.” The current article aims to show that despite this modification, zolpidem continues to be associated with problematic drug use, as the official system (Center for Evaluation and Information on Pharmacodependence—Addictovigilance network) providing information on the abuse and dependence potential of drugs informs us. The authors reviewed the literature on this topic and analyzed French data from zolpidems postmarketing period that were collected by the Addictovigilance network from 2003 to 2010. Postmarketing data and the 30 case reports yielded from the literature review highlight a significant dependence and abuse potential for zolpidem. This survey led to propose in stronger additional rules in France to try to mitigate the abuse potential of zolpidem.


Journal of Gambling Studies | 2016

Towards a Validation of the Three Pathways Model of Pathological Gambling

Marc Valleur; Irène Codina; Jean-Luc Venisse; Lucia Romo; David Magalon; Mélina Fatséas; Isabelle Chéreau-Boudet; Mohamed-Ali Gorsane; Alice Guilleux; Groupe Jeu; Marie Grall-Bronnec; Gaëlle Challet-Bouju

With the aim of validating the three pathways hypothesis of pathological gambling (Blaszczynski and Nower in Addiction 97:487–499, 2002) 372 pathological gamblers meeting DSM IV (2000) criteria were assessed via a structured clinical interview as well as being subjected to personality tests and evaluation of their gambling practices. Our results show that it is possible to identify three subgroups corresponding to the three pathways: behaviourally conditioned problem gamblers, emotionally vulnerable problem gamblers and antisocial impulsivist problem gamblers. Our results particularly demonstrate that impulsivist gamblers preferentially choose semi-skilful gambling (horse racing and sports gambling) whereas emotionally vulnerable gamblers are significantly more attracted to games of chance (one-armed bandits, scratch cards, etc.) This led us to propose a functional presentation of the three pathways model which differs somewhat from the Blaszczynski and Nower presentation.


Journal of Gambling Studies | 2013

A Shorter and Multidimensional Version of the Gambling Attitudes and Beliefs Survey (GABS-23)

Gaëlle Bouju; Jean-Benoit Hardouin; Claude Boutin; Philip Gorwood; Jean-Damien Le Bourvellec; Fanny Feuillet; Jean-Luc Venisse; Marie Grall-Bronnec

The Gambling Attitudes and Beliefs Survey (GABS) is a questionnaire which explores gambling-related dysfunctional beliefs in an unidimensional way. The present research aims to investigate the dimensionality of the scale. 343 undergraduate student gamblers and 75 pathological gamblers seeking treatment completed the GABS and the south oaks gambling screen. Exploratory and confirmatory factor analyses revealed that the original one-factor structure of the GABS did not fit the data effectively. We then proposed a shorter version of the GABS (GABS-23) with a new five-factor structure, which fitted with the data more efficiently. The comparisons between students (problem vs. non-problem gamblers) and pathological gamblers seeking treatment indicated that the GABS-23 can discriminate between problem and non-problem gamblers as efficiently as the original GABS. To ensure the validity and the stability of the new structure of the GABS-23, analyses were replicated in an independent sample that consisted of 628 gamblers (256 non problem gamblers, 169 problem gamblers who are not treatment-seeking and 203 problem gamblers seeking treatment). Analyses showed satisfactory results, and the multidimensional structure of the GABS-23 was then confirmed. The GABS-23 seems to be a valid and useful assessment tool for screening gambling-related beliefs, emotions and attitudes among problem and non-problem gamblers. Moreover, it presents the advantage of being shorter than the original GABS, and of screening irrational beliefs and attitudes about gambling in a multidimensional way. The five-factor model of the GABS-23 is discussed based on the theory of locus of control.


Frontiers in Psychology | 2015

Unexpected online gambling disorder in late-life: A case report

Anne Sauvaget; Susana Jiménez-Murcia; Fernando Fernández-Aranda; Ana B. Fagundo; Laura Moragas; Ines Wolz; Misericordia Veciana de las Heras; Roser Granero; Marta Baños; Eva Real; Maria Neus Aymamí; Marie Grall-Bronnec; José M. Menchón

Background: The lifetime prevalence of problem or Gambling disorder (GD) in the elderly (i.e., those over 60 years old) is reported to range from 0.01 to 10.9%. Research has identified several specific risk factors and vulnerabilities in the elderly. Since the late 1990s, an increase in online GD has been observed in the youth population, whereas casinos, slot machines, and bingo seem to be the activities of choice among the elderly. Interestingly, online GD has not been described in the elderly to date. Case Description: We report an 83-year-old man who started online casino gambling from the age of 80 years, leading to debts that exceeded €30,000. He underwent a full clinical and neuropsychological assessment, without any evidence of cognitive impairment or any associated neurodegenerative disease. However, he had risk factors for GD, including adjustment disorder, stressful life events, previous offline casino GD when 50 years old, and dysfunctional personality traits. The change to online GD may have been due to his isolation, movement difficulties, and his high level of education, which facilitated his access to the Internet. Care management focused on individual cognitive-behavioral therapy. Conclusion: The prevalence of online GD may be underestimated among the elderly, and may increase among isolated old people with movement difficulties and ready access to the Internet. However, late-life GD should be considered a diagnosis of elimination, requiring a full medical, psychiatric (including suicide risk), and cognitive assessment. Specific therapeutic approaches need to be proposed and developed.


International Gambling Studies | 2017

Adaptation and validation of the Gambling Motives Questionnaire-Financial (GMQ-F) in a sample of French-speaking gamblers

Gaëtan Devos; Gaëlle Challet-Bouju; Jonathan Burnay; Pierre Maurage; Marie Grall-Bronnec; Joël Billieux

Abstract Previous research has identified specific gambling motives and linked them with both healthy and disordered gambling. The Gambling Motives Questionnaire (GMQ) is currently the most widely used measure for these motives. The present study aimed to offer a French validation of the latest version of this scale, the GMQ-Financial (GMQ-F), which measures four distinct motives (enhancement, social, coping, financial). The French GMQ-F was completed by 278 gamblers from the community and 22 treatment-seeking pathological gamblers, along with scales assessing gambling cognitions, impulsivity, disordered gambling symptoms and psychopathological symptoms. Confirmatory factor analysis supported the expected four-factor model. The GMQ-F subscales have good internal reliability. Validity of the GMQ-F is supported by specific correlations with the other constructs measured. Pathological gamblers differed from gamblers from the community on all but one (social) of the GMQ-F subscales. The French GMQ-F presents good psychometric properties and constitutes a reliable instrument for measuring gambling motives in research and clinical practice.


Basic & Clinical Pharmacology & Toxicology | 2017

Baclofen and Alcohol‐Dependent Patients: A Real Risk of Severe Self‐Poisoning

David Boels; Caroline Victorri-Vigneau; Marie Grall-Bronnec; Ali Touré; Anais Garnier; Alain Turcant; Gaël Le Roux

Baclofen is often prescribed in high doses to fight cravings experienced by alcohol‐dependent patients. Such an increase in the availability of baclofen is concerning. This study aimed to determine the change in number and profile of self‐poisoning with baclofen over time, as baclofen has become increasingly popular, in order to describe the severity of self‐poisoning with baclofen and to focus on co‐existing alcohol use disorders, and psychiatric illnesses determine predictors of severity. This was a retrospective study of self‐poisoning with baclofen as reported by the western France Poison Control Center (PCC), which represents a population of more than 12 million people from January 2008 to March 2014. One hundred and eleven cases of self‐poisoning with baclofen were reported to the western France PCC (62 males and 49 females; average age 39 ± 12). Poisoning severities were as follows: ‘null’ (nine cases), ‘minor’ (37 cases), ‘moderate’ (19 cases) and ‘high’ (46 cases, including four deaths). The most frequently reported symptoms were neurological (45%) and cardiovascular (27%). The severity was significantly associated with psychiatric disorders (OR = 2.9; p = 0.03). Baclofen, prescribed in high doses, may lead to severe poisoning, particularly in patients with psychiatric illnesses. Authorities should put forward a new policy for prescribing the drug as a treatment for alcohol dependence.

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