This subproject is one of many research subprojects utilizing the resources provided by a Center grant funded by NIH/NCRR. The subproject and investigator (PI) may have received primary funding from another NIH source, and thus could be represented in other CRISP entries. The institution listed is for the Center, which is not necessarily the institution for the investigator. This is an application from an inter-institutional group of investigators with long-standing interest in Rett syndrome, Angelman syndrome (AS), and Prader-Willi syndrome (PWS) to establish a Rare Diseases Clinical Research Center (RDCRC) that would be part of the proposed Rare Diseases Clinical Research Network (RDCRN).
The specific aims for Rett will be to establish a phenotype/genotype correlation over a broad spectrum of Rett phenotypes, to perform longitudinal studies on a broad sample of individuals with Rett, and to perform a survival study on a broad spectrum of Rett individuals.
The specific aims for AS are to conduct a longitudinal assessment of patients with AS according to genotype, to complete the ongoing double-blind, placebo controlled trial of folic acid and betaine in AS, and to develop a follow-on clinical trial for activation of the paternal allele for UBEM in AS patients.
The specific aims for PWS are to conduct longitudinal studies according to genotype, to develop parameters and tools for clinical trials, to test whether autistic features are more frequent in UPD than in deletion cases, and other ideas from collaborators.
The aim of a pilot project using comparative genomic hybridization (CGH) on microarrays would be to develop a cytogenetic test that would detect all sizable deletions and duplications of clinical relevance on a single analysis using CGH microarrays. The RDCRC will utilize GCRCs in Houston, Boston, San Diego, Gainesville, and other locations.
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