Publications by authors named "Juliette Salles"

Background: Attrition continues to be a major hurdle for addiction treatment. Through the prism of the attachment theory, this phenomenon can be understood as a manifestation of the patient's insecure attachment style, needing a highly-responsive care delivery. We developed an electronic health mobile application, co-designed with patients, aimed at helping healthcare teams respond to their patients' needs, and fostering adherence to care.

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2-arachidonoylglycerol (2-AG) is the most abundant endocannabinoid (EC), acting as a full agonist at both CB1 and CB2 cannabinoid receptors. It is synthesized on demand in postsynaptic membranes through the sequential action of phosphoinositide-specific phospholipase Cβ1 (PLCβ1) and diacylglycerol lipase α (DAGLα), contributing to retrograde signaling upon interaction with presynaptic CB1. However, 2-AG production might also involve various combinations of PLC and DAGL isoforms, as well as additional intracellular pathways implying other enzymes and substrates.

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Article Synopsis
  • A microdeletion involving the SNORD116 gene is linked to Prader-Willi syndrome (PWS), which presents with symptoms like intellectual disability, emotional dysregulation, and food-related behaviors resembling addiction.
  • The study investigates DNA methylation and gene expression differences in dopaminergic neurons from individuals with the SNORD116 microdeletion compared to healthy controls, also examining the influence of oxytocin (OXT).
  • Findings reveal over 153,000 differentially methylated cytosines, with changes in genes related to the dopaminergic system, including hypermethylation and under-expression of COMT and hypomethylation and over-expression of SLC6A3 in neurons with SNORD116 MD.
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Prader-Willi syndrome is a rare neurodevelopmental genetic disorder characterized by various endocrine, cognitive and behavioural problems. The symptoms include an obsession for food and reduced satiety, which leads to hyperphagia and morbid obesity. Neuropsychological studies have reported that Prader-Willi patients display altered social interactions with a specific weakness in interpreting social information and responding to them, a symptom close to that observed in autism spectrum disorders.

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Introduction: Research on borderline personality disorder (BPD) has shown that less intensive care is especially effective when patients have been told about their condition. However, problems with diagnosing the disorder are also described in the literature. This study thus aims to explore the factors associated with the challenges of identifying and then communicating a BPD diagnosis to patients.

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Borderline personality disorder (BPD) is a complex condition marked by heterogeneity. People with BPD have a profusion of symptoms spread across various levels of lived experience, such as identity, affectivity, and interpersonal relationships. Researchers and clinicians have often resorted to the structuring concept of Self to organize the fragmentation of their experience at the identity level.

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Article Synopsis
  • COVID-19 lockdown measures led to increased psychoactive substance use, with studies showing a rise in both alcohol and cannabis consumption during this period.
  • Our research analyzed data from an international survey focusing on cannabis use changes between March and October 2020, revealing a drop in average consumption and a mix of users starting and stopping the drug.
  • Findings indicated that cannabis users were generally less satisfied with government measures, more concerned about the economic impacts of COVID-19, and exhibited specific risk factors for use, including age, health concerns, and feelings of boredom.
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Background: Emergency psychiatry is an essential component in the training of psychiatry residents who are required to make patient-centred orientation decisions. This training calls for specific knowledge as well as skills and attitudes requiring experience. Kolb introduced a theory on experiential learning which suggested that effective learners should have four types of abilities: concrete experience, reflective observation, abstract conceptualisation and active experimentation.

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Article Synopsis
  • Prader-Willi syndrome (PWS) is a rare genetic disorder linked to abnormal gene expression in the 15q11-q13 chromosome region, affecting neurodevelopment and leading to various impairments.
  • This study aimed to explore epigenetic changes specifically in PWS patients compared to those with related disorders caused by gene inactivation (SNORD116 and MAGEL2).
  • Results showed a significant number of differentially methylated regions in PWS patients, impacting genes associated with neurodevelopment, endocrine issues, and behaviors that highlight key aspects of the PWS phenotype.
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The emergency department (ED) physicians working for the French Service d'Aide Medicale d'Urgence (SAMU) refer about 84% of individuals who contact SAMU for psychiatric problems to the psychiatric ED (PED), compared with only 20% of those calling with other medical emergencies. Physicians' lack of psychiatric knowledge may contribute to the high PED referral rate. The authors created a new psychiatric nurse-led service to improve the identification of psychiatric emergencies and assessed PED referrals and inpatient hospitalization rates before and after the new service commenced.

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Purpose: Prader-Willi syndrome (PWS) is a neurodevelopmental disorder with hypothalamic dysfunction due to deficiency of imprinted genes located on the 15q11-q13 chromosome. Among them, the SNORD116 gene appears critical for the expression of the PWS phenotype. We aimed to clarify the role of SNORD116 in cellular and animal models with regard to growth hormone therapy (GHT), the main approved treatment for PWS.

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The use of relevant guidelines is critical in psychiatric clinical practice to ensure the homogeneity of the global care provided. Consequently, it is important to identify whether they are utilized successfully and, if not, why. This would enable pragmatic solutions to be agreed to improve the organization of care and the removal of any barriers to the guidelines' implementation.

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Addictive disorders have been much investigated and many studies have underlined the role of environmental factors such as social interaction in the vulnerability to and maintenance of addictive behaviors. Research on addiction pathophysiology now suggests that certain behavioral disorders are addictive, one example being food addiction. Yet, despite the growing body of knowledge on addiction, it is still unknown why only some of the individuals exposed to a drug become addicted to it.

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Background: Recent research has highlighted that patients with borderline personality disorder (BPD) could experience symptomatic remissions. This led to the production of guidelines concerning the most appropriate care. In addition, as BPD patients frequently present at an emergency department (ED), specific recommendations concerning how they should be cared for there have also been developed.

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The Research Domain Criteria project (RDoc) proposes a new classification system based on information from several fields in order to encourage translational perspectives. Nevertheless, integrating genetic markers into this classification has remained difficult because of the lack of powerful associations between targeted genes and RDoC domains. We hypothesized that genetic diseases with psychiatric manifestations would be good models for RDoC gene investigations and would thereby extend the translational approach to involve targeted gene pathways.

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Background: Substance use disorder (SUD) is commonly thought to be less frequent among the elderly than among younger adults. However, this disorder could be insufficiently screened in this population. And the diagnosis could be difficult to make especially because of specificities of this population.

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Background: Prader-Willi syndrome (PWS) is a rare and complex neurodevelopmental disorder of genetic origin. It manifests itself in endocrine and cognitive problems, including highly pronounced hyperphagia and severe obesity. In many cases, impaired acquisition of social and communication skills leads to autism spectrum features, and individuals with this syndrome are occasionally diagnosed with autism spectrum disorder (ASD) using specific scales.

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