View clinical trials related to Down Syndrome.
Filter by:In approximately half of individuals with Down syndrome, an higher than normal number of vessels cross the optic disc margin. Investigator hypothesize that early retinal vessel branching occurs due to inhibition of angiogenesis by triplet overexpression of endostatin, an angiogenesis inhibitor encoded on chromosome 21. Since angiogenesis is critical in the development of eyes and other organs angiogenesis depended (specially kidney, brain, and recently described lungs and heart), early branching of retinal vessels at the level of the optic disc would also likely result in abnormal renal and other organs development in these individuals. Investigator wish to determine whether observation of optic disc vessels may serve as an indicator of elevated endostatin levels and other angiogenesis-dependent organs anomalies.
The Human Trisome Project will significantly increase the speed of Down syndrome research and the understanding of associated medical conditions. Its biobank will provide de-identified samples to research.
In this study, the investigators propose a novel method to detect Down syndrome using photography for facial dysmorphology, a tool called computer-aided diagnosis (CAD). After validating the method, this technology will be expanded to perform similar functions to assist in the detection of other dysmorphic syndromes. By using photography and image analysis this automated assessment tool would have the potential to improve the diagnosis rate and allow for remote, non-invasive diagnostic evaluation for dysmorphologists in a timely manner.
This study plans to establish a large bank of blood, cerebral spinal fluid (CSF), imaging, and clinical data. These data and samples will be used for future research into the causes of Alzheimer's disease (AD), Down Syndrome (DS) and other diseases that cause thinking and memory problems. This future research will also study how treatments for these diseases work. This research may help develop new treatments for some diseases of the nervous system and help understand these diseases better.
Objective: The development of a patient registry for Down syndrome (DS) was identified as a priority in the 2007 Down Syndrome Research Plan. Under the auspices of the Down Syndrome Consortium, founded in 2011 as a public-private partnership between the NIH and DS advocacy organizations, NICHD awarded a contract in 2012 to create a patient-focused online registry to facilitate research participation by individuals with DS. Two advisory boards, composed of advocates, family members, clinicians, researchers, and other relevant parties, have been involved in the development of the registry materials. Study Population: Individuals with DS (including those with mosaic DS and partial trisomy 21) Design: DS-Connect (TM) is an online survey tool designed to collect demographic data and health information from individuals with DS. Outcome measures: The purposes of DS-Connect (TM) are: 1. To identify the various phenotypic manifestations of DS. 2. To identify individuals with DS who may be eligible for research studies or new clinical trials, based on specific information about their diagnosis and health history.
Trisomy 21 or Down syndrome, is the most common genetic cause of cognitive disability. Currently, in Alsace, the birth prevalence is about 1 in 1600 live births, which means 10 liveborns with Down syndrome each year.If screening and prenatal diagnosis of children with trisomy 21, as well as medical care, social and educational integration in childhood was the subject of much research and has led to remarkable progress in terms of health and medical care, it is not the same for the knowledge about adolescents and adults.Despite a more and more higher life expectancy, the evolution of trisomy 21 in adulthood is often marked by a deterioration in health status, with a regression of acquired psychomotor skills, often attributed only to the precocious occurrence of Alzheimer's dementia. Nevertheless, it seems that the diagnosis of Alzheimer's dementia is often overdiagnosed, and it is well established that only a fraction of Down syndrome patients will develop this type of dementia. Too often a decline in general health, behavioral changes and decreased cognitive abilities are only attributed to the Down syndrome with an early dementia without looking for an underlying, potentially curable, disease.This study aims to better evaluate the health and social status of 100 adults with trisomy 21 in Alsace. The medical evaluation will include a comprehensive assessment of health status and quality of life conducted by the geneticist, a cardiac, sensory, hormonal, biological and radiological evaluation. A speech-language and psychomotor evaluation will also be conducted. A psychiatric consultation and a psychometric assessment will aim to assess cognitive function and to search for associated mood disorders.The expected results are to better know the natural history of trisomy 21 in adulthood, with the determination of the frequency of morbid events specific to adulthood, and also to improve the medical and paramedical care with the establishment of a monitoring program to prevent the occurrence of these morbid events.
The specimen collection is designed for the purpose of the development of a noninvasive prenatal test for T21.
The purpose of this study is to develop small molecule radio-labeled probes of beta-amyloid, to be used with positron emission tomography (PET) for early detection and treatment monitoring of Alzheimer disease (AD). The study hypothesis is that PET imaging of small molecule probes, in the form of novel fluorescent dyes with radioactive labels, will demonstrate cerebral patterns in patients with AD that are distinct from those of age-matched persons who are cognitively intact.
The purpose of this study is to develop small molecule radio-labeled probes of beta-amyloid, to be used with positron emission tomography (PET) for early detection and treatment monitoring of Alzheimer disease (AD). The study hypothesis is that PET imaging of small molecule probes, in the form of novel fluorescent dyes with radioactive labels, will demonstrate cerebral patterns in patients with AD that are distinct from those of age-matched persons who are cognitively intact.
Previous foreign studies revealed that the IQ in Down syndrome (DS) declines with age, but not any investigation of domestic data in Taiwan was available. Individuals with DS are characterized by limited verbal development, and in this article, authors look into the diverging verbal-nonverbal abilities in the DS phenotype.