Gilles de la Tourette syndrome (GTS) (MIM 137580) is a complex neuropsychiatric disorder probably originating from a disturbed interplay of several neurotransmitter systems in the prefrontal-limbic-basal ganglia loop. Polygenetic multifactorial inheritance has been postulated; nevertheless, no confirmed susceptible genes have been identified yet. As neuroimaging studies allude to dopaminergic and serotonergic dysfunction in GTS and serotonin as an important factor for dopamine release, genotyping of common polymorphisms in the serotonergic receptor (HTR1A: C-1019G; HTR2A: T102C, His452Tyr, A-1438G; HTR2C: C-759T, G-697C) and transporter genes (SLC6A4) was carried out in 87 patients with GTS, compared with 311 matched controls. We found a nominally significant association between both polymorphisms in the HTR2C and the GTS, which was more pronounced in male patients. Analysis of the further serotonergic polymorphisms did not reveal any significant result. A modified function of these promoter polymorphisms may contribute to the complex interplay of serotonin and dopamine and then to the manifestation of GTS.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1097/YPG.0b013e32833511ce | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Investigating Neurometabolite Changes in Response to Median Nerve Stimulation.
Brain Behav
January 2025
School of Psychology, University of Nottingham University Park, Nottingham, UK.
Background: Rhythmic median nerve stimulation (MNS) at 10 Hz has been shown to cause a substantial reduction in tic frequency in individuals with Tourette syndrome. The mechanism of action is currently unknown but is hypothesized to involve entrainment of oscillations within the sensorimotor cortex.
Objective: We used functional magnetic resonance spectroscopy (fMRS) to explore the dynamic effects of MNS on neurometabolite concentrations.
Pimozide Inhibits Type II but Not Type I Hair Cells in Chicken Embryo and Adult Mouse Vestibular Organs.
Biomedicines
December 2024
Department of Brain and Behavioral Sciences, University of Pavia, 27100 Pavia, Italy.
Background: Pimozide is a conventional antipsychotic drug of the diphenylbutylpiperidine class, widely used for treating schizophrenia and delusional disorders and for managing motor and phonic tics in Tourette's syndrome. Pimozide is known to block dopaminergic D2 receptors and various types of voltage-gated ion channels. Among its side effects, dizziness and imbalance are the most frequently observed, which may imply an effect of the drug on the vestibular sensory receptors, the hair cells.
View Article and Find Full Text PDFTherapeutic Approach to Primary Tic Disorders and Associated Psychiatric Comorbidities.
Brain Sci
December 2024
Movement Disorder Unit, Neurology Department, Hospital de Sant Pau, 08041 Barcelona, Spain.
Background/objectives: The treatment of tics and psychiatric comorbidities is crucial when they affect the patient's well-being and relationships. However, the optimal pharmacological treatment (PT) tailored to each patient's phenotype remains unclear. The primary objective of this study is to describe the clinical characteristics and treatment received for tics and psychiatric comorbidities in our cohort of children and adult patients with tic disorders.
View Article and Find Full Text PDFAdvances in Clustering and Classification of Tic Disorders: A Systematic Review.
Neuropsychiatr Dis Treat
December 2024
Department of Psychiatry, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, 100045, People's Republic of China.
Purpose: Tic disorders (TD) are common neurodevelopmental disorders characterized by heterogeneous tic symptoms in children, making diagnostic classification difficult. This complexity requires accurate subtyping using data-driven computational methods to identify patterns within clinical data. This systematic review primarily summarizes the current evidence for the classification of TD using a data-driven approach.
View Article and Find Full Text PDFBiofeedback-Based Videogame May Improve Rage Attacks in Tourette Syndrome.
J Child Adolesc Psychopharmacol
January 2025
Consultant, Pittsford, NY, USA.
Approximately 20%-40% of individuals with Tourette syndrome (TS) have rage attacks (RAs), which are recurrent, explosive behavioral outbursts that can cause significant functional impairment. Despite the impact of RA in TS, there has been limited research on treatment, and most studies have focused on pharmacologic interventions. Nonpharmacologic interventions have the potential to improve symptoms with fewer side effects.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!