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Aims: Rett syndrome (RTT) is a neurodevelopmental disorder caused by a mutation in the methyl-CpG-binding protein 2 (MECP2) gene. It is characterized by profound and severe motor disability. Patients with RTT grind their teeth, causing damage to their permanent teeth. This article aims to describe the case of an 8-year-old child with RTT and the methods of botulinum toxin-based treatment for teeth grinding.
Methods And Results: Surface electromyography (sEMG) was used to monitor the effects of treatment. The masseter and temporal muscles, responsible for the elevation of the mandible, were injected with botulinum toxin. The results of the sEMG examination performed 1 week, 1 month and 4 months after toxin administration were compared to the sEMG conducted before treatment. The research demonstrates a significant reduction in both grinding frequency and tension of the masseter and temporal muscles.
Conclusion: Possible adverse effects after chronic use of botulinum toxin were discussed. The article also emphasizes the need for masticatory muscle rehabilitation during botulinum toxin therapy. However, it is necessary to repeat this procedure on a larger group of children with RTT to establish our efforts' efficacy.
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http://dx.doi.org/10.1111/scd.12918 | DOI Listing |
Eur J Neurol
September 2025
Pain Treatment and Evaluation Center, CHU Timone, Assistance Publique des Hôpitaux de Marseille, Marseille, France.
Background: Neuropathic pain (NP) is frequently resistant to conventional treatments. Botulinum toxin type A (BT-A) is a recommended option for focal peripheral NP, but the dynamics of its effect in real-life conditions remain poorly characterized.
Objective: To assess BT-A efficacy in a real-world study of patients with focal peripheral NP, over a 1-year follow-up period.
JCI Insight
September 2025
Department of Pharmacology, University of Michigan, Ann Arbor, United States of America.
Cardiac hypertrophy is a common adaptation to cardiovascular stress and often a prelude to heart failure. We examined how S-palmitoylation of the small GTPase, Ras-related C3 botulinum toxin substrate 1 (Rac1), impacts cardiomyocyte stress signaling. Mutation of the cysteine-178 palmitoylation site impaired activation of Rac1 when overexpressed in cardiomyocytes.
View Article and Find Full Text PDFPain Manag
September 2025
Serviço de Reabilitação de Adultos 3, Centro de Medicina de Reabilitação de Alcoitão, Alcabideche, Portugal.
Pudendal neuropathy is a cause of pelvic pain, specifically pudendal neuralgia. The pudendal nerve is related to sensory, motor, and autonomic functions. We present the case of a 41-year-old man who suffered from chronic pelvic pain.
View Article and Find Full Text PDFBrain Behav
September 2025
Department of Neurology, Huai'an First People's Hospital, the Affiliated Huai'an No. 1 People's Hospital of Nanjing Medical University, Huai'an, Jiangsu, China.
Background And Purpose: Parkinson's disease (PD), a prevalent neurodegenerative disorder characterized by motor impairments, frequently accompanied by neuropsychiatric symptoms that significantly impair daily functioning and quality of life. The present study aimed to assess the efficacy of botulinum toxin A (BTX-A) in alleviating neuropsychiatric symptoms among PD patients.
Methods: This is an open-label, nonrandomized controlled trial.
Eur J Pediatr
September 2025
Department of Paediatric Otolaryngology, Royal Hospital for Children, 1345 Govan Road, Glasgow, G51 4TF, UK.
Unlabelled: Drooling is a common problem in children with neurodisability, and refractory cases may require surgery. Our aim was to assess whether a child's response to salivary botulinum toxin injections would predict success or failure from subsequent surgical intervention. Retrospective case note review of all children undergoing drooling surgery between 1st January 2007 and 31st December 2023 at the Royal Hospital for Children, Glasgow.
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