ArticleAnnals of clinical and translational neurology2026
Age-Related Characteristics of SYT1-Associated Neurodevelopmental Disorder.
Article in Annals of clinical and translational neurology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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Who cites it
3 citing papers in PubMed.
- A novel de novo multi-exon deletion of SYT1 in a child with Baker-Gordon syndrome.BMC pediatrics · 2026Article
- Age-Related Characteristics of SYT1-Associated Neurodevelopmental Disorder.Annals of clinical and translational neurology · 2026Article
- Regulation of spontaneous neurotransmission and homeostatic synaptic plasticity by synaptotagmin-1 disease variants at the SNARE primary interface.bioRxiv : the preprint server for biology · 2026Article
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Authors and funding
4 authors.
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Abstract
objectivesWe describe the clinical manifestations and developmental abilities of individuals with SYT1-associated neurodevelopmental disorder (Baker-Gordon syndrome) from infancy to adulthood. We further describe the neuroradiological and electrophysiological characteristics of the condition at different ages, and explore the associations between these characteristics and clinical symptoms.
methodsParticipants were recruited to the UK-based Brain and Behavior in Neurodevelopmental Disorders of Genetic Origin project. Caregivers completed a medical history questionnaire and a battery of standardized neurodevelopmental measures. MRI and EEG records were obtained with consent from treating clinicians. Age-related clinical manifestations and neuroimaging records were systematically analyzed. Balanced accuracy testing was used to explore brain-symptom associations.
resultsThis study describes 40 individuals with 30 distinct de novo SYT1 variants, including 10 novel variants. Qualitative age-related clinical trends included the resolution of hypotonia and worsening of movement disorders, sleep difficulties, and self-injurious behaviors. Social-communicative impairments were prominent, with evidence of progression with age. MRI abnormalities were identified in 45% of individuals, while EEG abnormalities were present in 93%. Epileptiform activity frequently co-occurred with movement disorders, while irregular sleep EEG coincided with sleep difficulties and respiratory problems.
interpretationThis study characterizes the broad spectrum and age-related progression of clinical symptoms and brain-related findings in individuals with SYT1-associated neurodevelopmental disorder. Further research is needed to understand factors contributing to within-individual change, and to develop targeted interventions aimed at improving outcomes and quality of life for affected individuals and their families.
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