View clinical trials related to Mental Retardation.
Filter by:Comparative genomic hybridization (CGH) array technology has been used in numerous studies on mental retardation, and few chromosomal abnormalities have been identified in patients. Because chromosomal abnormalities have still been associated with obesity, we can expect that syndromic obesity is also associated with small deletions/duplications. Characterization of deleted or duplicated loci in these obese patients would mean that these loci include genes implicated in obesity. This will permit to propose new gene(s) involved in obesity. (In french: Caractérisation phénotypique et recherche de REManiements chromosomiques chez des patients présentant une OBésité syndromique de cause non identifiée : REMOB)
Background: - Autism spectrum disorders (ASDs) are a group of developmental disorders that affect communication, social interaction, and behavior. Relatively little is known about the relationship between genetics and behavior among these individuals and their close relatives. Researchers are interested in using interviews and rating scales to better understand these issues, as well as collecting brain scan data and genetic samples for testing and comparison. - By comparing test results and genetic samples from healthy volunteers, people with ASD, and parents (or caregivers or legal guardians) of the first two groups, researchers hope to better understand the neuroscience of ASD. Objectives: - To learn more about the brain in healthy people and in people with autism spectrum disorders. - To study genes that might be involved in autism spectrum disorders by collecting DNA samples from participants. Eligibility: The following groups of participants will be eligible for the study: - Individuals between 5 and 89 years of age who have autism spectrum disorders. - Healthy volunteers between 5 and 89 years of age. - Cognitively impaired children between 5 and 17 years of age. - Parents/caregivers/legal guardians of individuals in the above three groups. Design: - Participants will visit the National Institutes of Health Clinical Center for research tests, which will be administered over multiple visits. Researchers will determine the specific tests to be administered based on the medical history of the study participant. - Researchers will study the brain through interviews, tests of thinking and memory (neuropsychological tests), brain imaging with magnetic resonance imaging (MRI), and magnetoencephalography (MEG). - The study will also collect blood or saliva to obtain a DNA sample.
The aim of this study is to evaluate benefits of the method of dental sedation using Target controlled infusion (TCI) combined with Bispectral index (BIS) monitoring in patients with Mental Retardation and challenging behavior.
This study will explore conditions caused by the absence of certain genes on chromosome 11. These conditions include WAGR syndrome, which is characterized by a kidney tumor called Wilm s tumor, aniridia (absence of the iris of the eye), genital and urinary abnormalities, mental retardation, and possibly other symptoms. This study will examine how the genes on chromosome 11 affect people and whether the absence of specific genes is associated with specific symptoms. Healthy normal volunteers, people with isolated aniridia, and people with WAGR or another chromosome 11 gene deletion may be eligible for this study. Participants must be at least 6 years old. Parents of patients may also participate for genetic studies. Participants undergo some or all of the following procedures, depending on whether they are a child, adult, healthy volunteer or parent of a patient: - Medical history and physical examination, eye examination, blood, urine and saliva tests, electrocardiogram (EKG) and electroencephalogram (EEG) - X-rays, scans and other tests to measure body composition (fat, muscle and bone development and thickness) and MRI to examine the eyes and the brain and to measure abdominal fat - Ultrasound studies of the kidneys, ovaries and uterus (in females) and testes (in males) - Meal tests, food diaries and food preference tests - Questionnaires about eating and sleep habits, personality and character traits and responses to pain and injury - Neuropsychological tests - Tests of resting metabolic rate, energy expenditure and glucose (sugar) tolerance - Hot and cold sensitivity tests, vibration sensitivity test, cold tolerance test and smell identification test - Eye and hearing tests - Nerve conduction studies and study of sensory information conduction from peripheral nerves to the spinal cord and brain - Computer photography - Evaluation by sub-specialists (e.g., endocrinologist, ophthalmologist, physiatrist, neurologist or others) as indicated by the patient s medical history and test results
Relatively few health promotion and disease prevention programs have included or targeted people with disabilities, and even fewer have focused on individuals with intellectual disabilities. The long-term objectives of the Healthy Lifestyles for People with Intellectual Disabilities Study (HLID) are to increase the health of persons with intellectual disabilities by establishing the efficacy of a health promotion program and promoting its adoption. The HLID Study is based in the Center on Community Accessibility (CCA) at Oregon Health & Science University. The mission of CCA is to increase the health and health-related quality of life of persons with disabilities. A pilot study conducted by CCA has established the effectiveness of the Healthy Lifestyles (HL) intervention among a cross-disability population in increasing health behavior adoption. The specific aim of the HLID Study is to test the efficacy of the HL program specifically with adults with intellectual disabilities. The HLID Study uses a randomized control study design. The HL intervention will be administered to 75 adults and will compare results to those of an additional 75 adults who receive no intervention. Measurement will include anthropometric assessments to measure impacts on overweight and obesity, as well as self-report measures of healthy behaviors, health status, health care utilization, and secondary conditions. Results will be shared with research participants, presented through professional conferences and newsletters, and published in peer-reviewed journals with the assistance of community partners.
This is an open randomized controlled study in children with mental retardation and refractory epilepsy in which treatment with ketogenic diet (KD) is compared with treatment with the antiepileptic drug (AED), not tried by the patient before, which we consider to be the most appropriate AED for the patient.
This study will examine the effect of bright light or melatonin treatment on sleep in children with Smith-Magenis syndrome (SMS), a genetic disorder characterized by certain physical, behavioral and developmental features. Patients have a disrupted sleep cycle involving early waking, frequent daytime napping and frequent nighttime awakenings. Melatonin is a hormone normally produced at night in healthy people. People with SMS produce high levels of melatonin during the daytime and very low levels at night. This may affect their behavior, mood, attention span and sleep patterns. Healthy volunteers between 18 and 45 years of age and children with SMS who are between 3 and 16 years of age may be eligible for this study. Healthy subjects are admitted to the NIH Clinical Center overnight. In the morning they take one dose of time-release melatonin and have blood and saliva samples collected hourly from 7:00 AM to 6:00 PM. Children with SMS participate in a 2-part study, as follows: Part 1 Inpatient Trial Pre-trial at-home phase: During the month before NIH inpatient admission, participants do the following: - Wear an actiwatch device or keep a daily sleep diary to monitor daytime alertness, mood shifts and sleep patterns. - Complete a behavior assessment survey related to the child s behaviors and sleep patterns. - Obtain frequent body temperature measurements. - Collect several saliva samples over a 24-hour period. NIH admission phase: - Children are admitted to the NIH Clinical Center for 2-3 nights for bright light treatment. They remain in their rooms for alternating periods of exposure to standard dim room light and bright light, using a light box placed within 3 to 5 feet of the child. An electroencephalogram (EEG) with additional electrodes to track eye movements is used to monitor the child s attention. Between 8AM and 6PM serial blood samples are collected to measure melatonin levels. A parent rates the child s mood and behavior during the 2-day test period. - Children are admitted to the NIH Clinical Center for 2-3 nights for melatonin treatment. They take a single dose of melatonin or placebo tablet at bedtime. During the daytime, EEG electrodes are placed to track eye movements. Between 7 PM and 7 AM serial blood samples are collected to measure melatonin levels. A parent rates the child s behavior and mood as described for the bright light study. - Children may receive either or both of the bright light and melatonin treatments. Part 2 Outpatient Trial Children participate in a combined bright light with melatonin trial at home. They undergo the same procedures outlined in the pre-trial at-home phase of Part 1 (actiwatch, behavior assessments, body temperature measurements, saliva samples) over an 11-week period. If saliva samples cannot be collected for melatonin testing, 24-hour urine samples may be collected instead.
This is an open-label clinical research study of an oral glycopyrrolate liquid for the treatment of chronic moderate to severe drooling in patients with cerebral palsy or other neurological conditions. Patients participating in the study will receive oral glycopyrrolate liquid (1 mg/5 ml) three times a day (TID) for study duration of 24 weeks. After a washout, screening, and 2-day baseline period, patients will be enrolled in a 4-week dose titration period. Glycopyrrolate liquid doses will be titrated using dose levels in the Dose Titration Schedule. Titration will begin at 0.02 mg/kg per dose TID and sequentially increased in 0.02 mg/kg per dose increments TID every 5-7 days during the first four weeks until optimal individualized response is obtained for each patient or a maximum dose of 0.1 mg/kg TID is reached, not exceeding 3 mg TID or Dose-level 5 in the Dose Titration Schedule, whichever is lesser. Optimal dose for each patient is the dose at which he/she is receiving the maximum benefit from the study drug (greatest improvement in drooling) while experiencing minimum side effects. All patients will receive close attention by study staff throughout the study.
Repetitive behavior disorders are prevalent among people with severe mental retardation. These disorders can interfere significantly with an individual’s daily functions. This trial is part of a long-term project that has studied the biologic basis of and possible treatments for repetitive behavior disorders. The trial will evaluate the effectiveness of two medications, a selective serotonin reuptake inhibitor (SSRI) and an atypical antipsychotic, in treating repetitive behavior disorders in people with mental retardation.
The BIS monitor is a tool which assists anesthesiologists in monitoring the depth of anesthesia or level of anesthesia. The study doctors would like to see if it is useful tool for patients who are mentally challenged and require anesthesia.