Publications by authors named "Neumeyer A"

Background: The prevalence of autism spectrum disorder (ASD) has surged, with an estimated 1 in 36 eight-year-olds in the United States meeting criteria for ASD in 2020. Autistic individuals face elevated rates of co-occurring medical, psychiatric, and behavioral conditions compared to non-autistic individuals. The rising ASD-patient demand is increasingly outpacing the capacity of ASD-specialty clinics, resulting in urgent need for autism-competent providers in general practice settings.

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  • Many adults with autism spectrum disorder (ASD) are not receiving genetic testing as recommended, with only 41% of the studied individuals having any recorded testing history.
  • The study included 630 adults with ASD, finding that testing was declined by 11% and remained unrecorded in 47% of cases; a majority of those who were tested qualified as having intellectual disabilities.
  • Among those tested, only 54% used recommended genetic testing methods, and a genetic cause of ASD was identified in 28% of instances where results were available.
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  • - Myhre syndrome is a rare genetic disorder linked to mutations in the SMAD4 gene, with recent studies from Massachusetts General Hospital highlighting its complexities through evaluations of 47 patients.
  • - The findings indicate that symptom progression occurs in all patients after at least 5 years of observation, with different SMAD4 variants associated with varying health outcomes, particularly regarding hearing loss and aortic hypoplasia.
  • - There is a call for more research and evidence-based guidelines to improve understanding and treatment of Myhre syndrome, especially given the serious complications observed, including deaths related to cardiovascular issues.
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Background: TBL1XR1 encodes a F-box-like/WD40 repeat-containing protein that plays a role in transcription mediated by nuclear receptors and is a known genetic cause of neurodevelopmental disease of childhood (OMIM# 608628). Yet the developmental trajectory and progression of neurologic symptoms over time remains poorly understood.

Methods: We developed and distributed a survey to two closed Facebook groups devoted to families of patients with TBL1XR1-related disorder.

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Objective: We conducted a scoping review of interventions designed to improve the health care experiences of autistic individuals and assessed the methodology and outcomes used to evaluate them.

Methods: Literature from January 2005 to October 2020 was searched using PubMed, Excerpta Medica dataBASE (EMBASE), Cumulated Index to Nursing and Allied Health Literature (CINAHL), PsycINFO as well as hand searching. Studies included described an intervention for autistic individuals in inpatient or outpatient settings and evaluated the intervention using standardized methodology.

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  • - Phelan-McDermid syndrome (PMS) is a genetic disorder caused by SHANK3 haploinsufficiency, leading to various neurodevelopmental and systemic issues.
  • - Updated clinical management guidelines for PMS were created by an expert taskforce to incorporate recent findings and provide comprehensive support for clinicians and the community.
  • - The new guidelines improve the assessment and management of PMS, while also noting the need for ongoing research to refine treatment recommendations as more information becomes available.
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Children with autism spectrum disorder (ASD) report high rates of sleep problems. In 2012, the Autism Treatment Network/ Autism Intervention Research Network on Physical Health (ATN/AIR-P) Sleep Committee developed a pathway to address these concerns. Since its publication, ATN/AIR-P clinicians and parents have identified night wakings as a refractory problem unaddressed by the pathway.

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  • The study highlights the use of online platforms for conducting pediatric healthcare research, particularly during the pandemic, which aids in trial efficiency and data collection.
  • Researchers developed a digital platform to provide sleep disorder interventions to parents of children with autism spectrum disorder (ASD), evaluating the effectiveness of simple educational materials versus multimedia resources.
  • Results showed high enrollment rates and positive feedback from families, but while no overall improvement in sleep measures was recorded, parents who noted significant improvements in sleep habits did show some positive changes, suggesting online platforms are a feasible option for future studies in pediatric health.
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Higher risk of fracture reported in individuals with autism spectrum disorder (ASD) might be linked to poor bone health and development in childhood. This study aimed to systematically review studies comparing imaged bone outcomes between children with ASD and typically developing children (TDC) or reference data, and to perform a meta-analysis comparing commonly reported bone outcomes. We searched articles published since August 2020 from PubMed, Cochrane Library, Web of Science, EMBASE, and Scopus databases.

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  • Truncating variants in exons 33 and 34 of the SRCAP gene are linked to Floating-Harbor syndrome, a neurodevelopmental disorder with symptoms like short stature and speech delay.
  • In a study of 33 individuals with different clinical features than FLHS, most had de novo SRCAP variants, revealing shared issues like developmental delays and behavioral problems.
  • The research found distinct DNA methylation signatures for these individuals compared to FLHS, leading to the classification of their condition as "non-FLHS SRCAP-related NDD," emphasizing the relationship between variant location, DNA methylation, and clinical symptoms.
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Children with autism are at high risk for vision problems, which may compound core social and behavioral symptoms if untreated. Despite recommendations for school-aged children with autism to receive routine vision testing by an eye care practitioner (ophthalmologist or optometrist), little is known about their vision care. This study, therefore, examined vision care among 351 children with autism ages 6-17 years in the United States or Canada who were enrolled in the Autism Treatment Network Registry.

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Genetic variants causing the fast-channel congenital myasthenic syndrome (CMS) have been identified in the α, δ, and ε but not the β subunit of acetylcholine receptor (AChR). A 16-year-old girl with severe myasthenia had low-amplitude and fast-decaying miniature endplate potentials. Mutation analysis revealed two heteroallelic variants in CHRNB1 encoding the AChR β subunit: a novel c.

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3q29 deletion syndrome is caused by a heterozygous 1.6 Mb deletion on chromosome 3, which occurs in about 1 in 30 000 births. Phenotypic features of this syndrome include mild-to-moderate intellectual disability, autism spectrum disorder, slightly dysmorphic facial features, ataxic gait, and chest-wall deformity.

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Physical activity may improve symptoms and skill deficits associated with autism spectrum disorder (ASD). The objective of this study was to compare the reported frequency of physical activity and covariates in a large sample of children with ASD with children of similar age from the general population. The sample with ASD was derived from the Autism Treatment Network Registry Call Back Assessment (n = 611), and the general population data were derived from the National Survey of Children's Health (NSCH) (n = 71,811).

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Background: Early identification and treatment of individuals with autism spectrum disorder (ASD) improves outcomes, but specific evidence needed to individualize treatment recommendations is lacking. Biomarkers that could be routinely measured within the clinical setting could potentially transform clinical care for patients with ASD. This demonstration project employed collection of biomarker data during regular autism specialty clinical visits and explored the relationship of biomarkers with clinical ASD symptoms.

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Metabolic interventions including special diets and supplements are commonly used in Autism Spectrum Disorder (ASD). Yet little is known about how these interventions, typically initiated by caregivers, may affect metabolic function or the core symptoms of ASD. This review examines possible direct and indirect roles for metabolism in the core symptoms of ASD as well as evidence for metabolic dysfunction and nutritional deficiencies.

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Children with autism spectrum disorder (ASD) are at increased risk for being overweight/obese and face a variety of challenges with achieving the recommended levels of physical activity. Physical activity level has additionally been linked to motor skills, sleep, cognitive function and academic performance, and mental health in children with ASD. We pilot tested the feasibility and preliminary efficacy of walking routes as a novel approach to increasing physical activity among children with ASD.

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An immune-mediated subtype of autism spectrum disorder (ASD) has long been hypothesized. This article reviews evidence from family history studies of autoimmunity, immunogenetics, maternal immune activation, neuroinflammation, and systemic inflammation, which suggests immune dysfunction in ASD. Individuals with ASD have higher rates of co-morbid medical illness than the general population.

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The chronicity of sleep disturbance and its relation to co-occurring symptoms in children with autism spectrum disorder (ASD) are not well understood. The current study examined longitudinal relations among sleep and co-occurring symptoms in a large well-characterized sample of 437 children with ASD assessed at baseline and follow-up (M = 3.8 years later).

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Objective: Children with autism spectrum disorder (ASD) have a high prevalence of co-occurring medical conditions, including speech, sleep, and gastrointestinal disorders (constipation and feeding difficulties); developmental delay; attention deficit/hyperactivity disorder; hypotonia; epilepsy; anxiety; disruptive behavior; pica; and eczema. Less is known about whether these commonly coexist in the same children. We sought to determine clinically meaningful, statistically significant associations among co-occurring medical conditions in children with ASD that could lead to better understanding, identification, and treatment of these disorders.

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We examined barriers and facilitators to expanding primary care's capacity to manage conditions associated with autism spectrum disorder (ASD). We conducted semi-structured interviews with specialists, primary care providers (PCPs), primary care staff, and parents of children with ASD, discussing health/behavior problems encountered, co-management, and patient/family experience. Participants endorsed primary care as the right place for ASD-associated conditions.

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Background: Boys with autism spectrum disorder (ASD) have lower bone mineral density (BMD) than typically developing controls. Differences in diet and exercise may contribute to low BMD.

Objective: Our aim was to examine macro- and micronutrient intakes and self-reported physical activity in boys with ASD compared to TDC and the relationship of these variables with BMD.

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Objective: Recruitment and completion of research activities during regular clinical care has the potential to increase research participation in complex neurodevelopmental disorders. We evaluated the feasibility, and effect on clinical care, of conducting biomarker research within a subspecialty clinical visit for autism spectrum disorder (ASD).

Methods: Children, aged 5 to 10 years, were recruited by providers in ASD clinics at 5 institutions.

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