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Exploring genotype-phenotype relationships in the CDKL5 deficiency disorder using an international datasetCharacterized by early-onset seizures, global developmental delay and severe motor deficits, CDKL5 deficiency disorder is caused by pathogenic variants in the cyclin-dependent kinase-like 5 gene. Previous efforts to investigate genotype-phenotype relationships have been limited due to small numbers of recurrent mutations and small cohort sizes. Using data from the International CDKL5 Disorder Database we examined genotype-phenotype relationships for 13 recurrent CDKL5 variants and the previously analyzed historic variant groupings. We have applied the CDKL5 Developmental Score (CDS) and an adapted version of the CDKL5 Clinical Severity Assessment (CCSA), to grade the severity of phenotype and developmental outcomes for 285 individuals with CDKL5 variants.
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Determinants of sleep problems in children with intellectual disabilityChildren with intellectual disabilities are more likely to experience sleep disorders of insomnia, excessive daytime sleepiness and sleep breathing disorders than typically developing children. The present study examined risk factors for these sleep disorders in 447 children (aged 5-18 years), diagnosed with an intellectual disability and comorbid autism spectrum disorder, cerebral palsy, Down syndrome or Rett syndrome. Primary caregivers reported on their child's sleep using the Sleep Disturbance Scale for Children (SDSC), as well as medical comorbidities and functional abilities.
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The Brain Basis of Comorbidity in Neurodevelopmental DisordersThis review discusses early brain development and the etiological factors that may give rise to atypical developmental trajectories, along with neuroimaging insights
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Patterns of sedentary time and ambulatory physical activity in a Danish population of girls and women with Rett syndromeHigh levels of sedentary time and low daily step counts in a Danish population of females with Rett syndrome
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Children and adolescents with type 1 diabetes in Australasia: An online survey of model of care, workforce and outcomesSurvey of the model of care and workforce that manages children and adolescents with type 1 diabetes in Australasia along with glycaemic outcomes
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Association between interpregnancy interval and adverse birth outcomes in women with a previous stillbirth: an international cohort studyConception within 12 months of a stillbirth was common and was not associated with increased risk of adverse outcomes in the subsequent pregnancy
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Assessing the quality, efficiency and usefulness of the Western Australian population-based Intellectual Disability Exploring Answers (IDEA) surveillance systemThe IDEA system is a valuable resource to address the needs of people living with intellectual disability
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Respiratory morbidity in Rett syndrome: An observational studyRett syndrome is associated with increased vulnerability to lower respiratory tract infection requiring hospitalization
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Daytime sleepiness and emotional and behavioral disturbances in Prader-Willi syndromeIndividuals with Prader-Willi syndrome (PWS) often have excessive daytime sleepiness and emotional/behavioral disturbances. The objective of this study was to examine whether daytime sleepiness was associated with these emotional/behavioral problems, independent of nighttime sleep-disordered breathing, or the duration of sleep.
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Optimal interpregnancy interval in autism spectrum disorder: A multi-national study of a modifiable risk factorIt is biologically plausible that risk of autism spectrum disorder (ASD) is elevated by both short and long interpregnancy intervals (IPI). We conducted a retrospective cohort study of singleton, non-nulliparous live births.