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International Rett syndrome study: InterRettHelen Jenny Leonard Downs MBChB MPH BApplSci (physio) MSc PhD Principal Research Fellow Head, Child Disability +61 419 956 946 08 6319 1763
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Multi-site validation of a suite of clinical outcome measures for clinical trial readiness in the CDKL5 Deficiency DisorderHelen Jenny Peter Leonard Downs Jacoby MBChB MPH BApplSci (physio) MSc PhD BA (Hons) MSc Principal Research Fellow Head, Child Disability
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Charting developmental trajectories from 12 to 36 months and associated early risk and protective factorsTo investigate developmental trajectories in early childhood and predictors of class assignment.
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Pain coping tools for children and young adults with a neurodevelopmental disability: A systematic review of measurement propertiesTo systematically identify and evaluate the measurement properties of patient-reported outcome measures (PROMs) and observer-reported outcome measures (parent proxy report) of pain coping tools that have been used with children and young adults (aged 0–24 years) with a neurodevelopmental disability.
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A longitudinal examination of perinatal testosterone, estradiol and vitamin D as predictors of handedness outcomes in childhood and adolescenceThe developmental origins of handedness remain elusive, though very early emergence suggests individual differences manifesting in utero could play an important role. Prenatal testosterone and Vitamin D exposure are considered, yet findings and interpretations remain equivocal.
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CDKL5 deficiency disorder: clinical features, diagnosis, and managementCDKL5 deficiency disorder (CDD) was first identified as a cause of human disease in 2004. Although initially considered a variant of Rett syndrome, CDD is now recognised as an independent disorder and classified as a developmental epileptic encephalopathy.
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A brief history of MECP2 duplication syndrome: 20-years of clinical understandingMECP2 duplication syndrome (MDS) is a rare, X-linked, neurodevelopmental disorder caused by a duplication of the methyl-CpG-binding protein 2 (MECP2) gene-a gene in which loss-of-function mutations lead to Rett syndrome (RTT). MDS has an estimated live birth prevalence in males of 1/150,000.
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Modifiable child and caregiver factors that influence community participation among children with Down syndromeTo investigate modifiable child and caregiver factors influencing community participation among children with Down syndrome.
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Longitudinal Evaluation of the Stability of Hand Function in Rett SyndromeWe investigated the longitudinal stability of hand function in Rett syndrome and to analyze further the relationships between stability of hand function and genotype, age, and walking ability. Study design: Longitudinal video data of functional abilities of individuals with genetically confirmed Rett syndrome were collected by families of individuals registered with the Australian Rett Syndrome Database.
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PCV10 elicits Protein D IgG responses in Papua New Guinean children but has no impact on NTHi carriage in the first two years of lifeNasopharyngeal colonisation with nontypeable Haemophilus influenzae (NTHi) is associated with development of infections including pneumonia and otitis media. The 10-valent pneumococcal conjugate vaccine (PCV10) uses NTHi Protein D (PD) as a carrier. Papua New Guinean children have exceptionally early and dense NTHi carriage, and high rates of NTHi-associated disease.