The National Institutes of Health (NIH) has a long-standing history of support for research in Down syndrome (DS). In response to a 2018 congressional directive for a trans-NIH initiative to address medical issues in DS, NIH launched the INCLUDE Project (INvestigation of Co-occurring conditions across the Lifespan to Understand Down syndromE). Reflecting the three INCLUDE components of basic science research, cohort development, and clinical trials, the Project has published funding opportunities to address conditions such as immune disorders and Alzheimer's disease.
View Article and Find Full Text PDFAs a major funder of research on intellectual and developmental disabilities (IDD), NIH has a broad view of the profound impact of cultural and structural barriers on the characteristics of IDD study populations and the composition of the IDD research workforce. While long overdue, multiple efforts are currently underway across NIH aimed at addressing these barriers and increasing meaningful representation in biomedical and behavioral research.
View Article and Find Full Text PDFAm J Med Genet C Semin Med Genet
March 2023
This paper focuses on the question of, "When is the best time to identify an individual at risk for a treatable genetic condition?" In this review, we describe a framework for considering the optimal timing for pursuing genetic and genomic screening for treatable genetic conditions incorporating a lifespan approach. Utilizing the concept of a carousel that represents the four broad time periods when critical decisions might be made around genetic diagnoses during a person's lifetime, we describe genetic testing during the prenatal period, the newborn period, childhood, and adulthood. For each of these periods, we describe the objectives of genetic testing, the current status of screening or testing, the near-term vision for the future of genomic testing, the advantages and disadvantages of each approach, and the feasibility and ethical considerations of testing and treating.
View Article and Find Full Text PDFGene-targeted therapies (GTTs) are therapeutic platforms that are in principle applicable to large numbers of monogenic diseases. The rapid development and implementation of GTTs have profound implications for rare monogenic disease therapy development. This article provides a brief summary of the primary types of GTTs and a brief overview of the current state of the science.
View Article and Find Full Text PDFAm J Med Genet C Semin Med Genet
March 2023
The cost and time needed to conduct whole-genome sequencing (WGS) have decreased significantly in the last 20 years. At the same time, the number of conditions with a known molecular basis has steadily increased, as has the number of investigational new drug applications for novel gene-based therapeutics. The prospect of precision gene-targeted therapy for all seems in reach… or is it? Here we consider practical and strategic considerations that need to be addressed to establish a foundation for the early, effective, and equitable delivery of these treatments.
View Article and Find Full Text PDFAm J Med Genet C Semin Med Genet
June 2022
Newborn screening (NBS) is a successful public health initiative that effectively identifies pre-symptomatic neonates so that treatment can be initiated before the onset of irreversible morbidity and mortality. Legislation passed in 2008 has supported a system of state screening programs, educational resources, and an evidence-based review process to add conditions to a recommended universal newborn screening panel (RUSP). The Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD), NIH, has promoted NBS research to advance legislative goals by supporting research that will uncover fundamental mechanisms of disease, develop treatments for NBS disorders, and promote pilot studies to test implementation of new conditions.
View Article and Find Full Text PDFJoubert syndrome (JS) is a neurodevelopmental disorder characterized by hypotonia and developmental delay, as well as the obligatory molar tooth sign on brain imaging. Since hypotonia and developmental delay are nonspecific features, there must be a high level of clinical suspicion of JS so that the diagnostic brain imaging and/or molecular testing for the >38 genes associated with JS is/are obtained. The goal of this study was to analyze clinical photographs of a cohort of patients with JS to define a list of physical examination features that should prompt investigation for JS.
View Article and Find Full Text PDFJoubert syndrome (JS) is a genetically heterogenous disorder of nonmotile cilia with a characteristic "molar tooth sign" on axial brain imaging. Clinical features can include developmental delay, kidney failure, liver disease, and retinal dystrophy. Prospective growth and measurement data on 170 individuals with JS were collected, including parental measurements, birth measurements, and serial measures when available.
View Article and Find Full Text PDFJoubert syndrome (JS) is a recessive neurodevelopmental disorder defined by a characteristic cerebellar and brainstem malformation recognizable on axial brain magnetic resonance imaging as the "Molar Tooth Sign". Although defined by the neurological features, JS is associated with clinical features affecting many other organ systems, particularly progressive involvement of the retina, kidney, and liver. JS is a rare condition; therefore, many affected individuals may not have easy access to subspecialty providers familiar with JS (e.
View Article and Find Full Text PDFRecent interest in personalized medicine has highlighted the importance of research in ethical, legal, and social issues (ELSI). Issues in ELSI research may be magnified in the rare diseases population (i.e.
View Article and Find Full Text PDFPurpose: Joubert syndrome (JS) is caused by mutations in >34 genes that encode proteins involved with primary (nonmotile) cilia and the cilium basal body. This study describes the varying ocular phenotypes in JS patients, with correlation to systemic findings and genotype.
Design: Patients were systematically and prospectively examined at the National Institutes of Health (NIH) Clinical Center in the setting of a dedicated natural history clinical trial.
The newborn screening paradigm of testing all newborns in the United States for treatable conditions within the first few hours of birth has proven to be a remarkable success story in the realm of public health by reducing neonatal and childhood morbidity and mortality. The Newborn Screening Saves Lives Act of 2007 and its successor, the Reauthorization Act of 2014, legislated the establishment of a Department of Health and Human Services Advisory Committee to make recommendations around newborn screening and a methodology to establish and add new conditions to a Recommended Uniform Screening Panel (RUSP) which currently includes 34 core conditions. In spite of the absence of a federal mandate that requires each of the states in the U.
View Article and Find Full Text PDFBackground And Aims: Joubert Syndrome (JS) is a rare, inherited, ciliopathy defined by cerebellar and brainstem malformations and is variably associated with liver, kidney, and ocular dysfunction. This study characterizes the hepatic findings in JS and identifies factors associated with probable portal hypertension.
Methods: Hundred individuals with JS were prospectively evaluated at the National Institutes of Health Clinical Center.
Disruption of normal ciliary function results in a range of diseases collectively referred to as ciliopathies. Here we report a child with a phenotype that overlapped with Joubert, oral-facial-digital, and Pallister-Hall syndromes including brain, limb, and craniofacial anomalies. We performed exome-sequence analysis on a proband and both parents, filtered for putative causative variants, and Sanger-verified variants of interest.
View Article and Find Full Text PDFPurpose: Joubert syndrome (JS) is a genetically and clinically heterogeneous ciliopathy characterized by distinct cerebellar and brainstem malformations resulting in the diagnostic "molar tooth sign" on brain imaging. To date, more than 30 JS genes have been identified, but these do not account for all patients.
Methods: In our cohort of 100 patients with JS from 86 families, we prospectively performed extensive clinical evaluation and provided molecular diagnosis using a targeted 27-gene Molecular Inversion Probes panel followed by whole-exome sequencing (WES).
Background: Joubert syndrome is a clinically and genetically heterogeneous ciliopathy. Neuroimaging findings have not been systematically evaluated in a large cohort of patients with Joubert syndrome in correlation with molecular genetic cause and cognitive function.
Methods: Brain MRI of 110 patients with Joubert syndrome was included in this study.
In December 2014, a workshop entitled "Nutritional Interventions in Primary Mitochondrial Disorders: Developing an Evidence Base" was convened at the NIH with the goals of exploring the use of nutritional interventions in primary mitochondrial disorders (PMD) and identifying knowledge gaps regarding their safety and efficacy; identifying research opportunities; and forging collaborations among researchers, clinicians, patient advocacy groups, and federal partners. Sponsors included the NIH, the Wellcome Trust, and the United Mitochondrial Diseases Foundation. Dietary supplements have historically been used in the management of PMD due to their potential benefits and perceived low risk, even though little evidence exists regarding their effectiveness.
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