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OBJECTIVES: I. Extend current knowledge of the phenotype and natural history of Rett syndrome (RS).
II. Continue the search for a cytogenetic and/or DNA marker. III. Study the effects of cholinergic drugs based on preliminary evidence for reduced levels of brain acetylcholine, while continuing supportive care to modify seizures, respiratory abnormalities, and motor disturbances, and improve nutrition, behavior, and learning.
IV. Identify targets for future therapeutic interventions, e.g., growth factors, to influence neurologic recovery.
PROTOCOL OUTLINE: Patients receive a comprehensive clinical evaluation including an ophthalmologic exam; speech, communication, and developmental assessment; nutritional evaluation; neurologic exam; respiratory monitoring; and cytogenetic studies.
Selected patients with malnutrition are given night feedings of Pediasure with Fiber by nasogastric tube. Specific recommendations for feeding techniques and diet are made.
Selected patients with seizures or severe hyperventilation and progressive rigidity are nonrandomly assigned to dextromethorphan or topiramate therapy.
Oral dextromethorphan is maintained 6 months to 1 year; duration of therapy depends on response. Oral topiramate is given for 6 months to 1 year, and Aricept for 6 months to 1 year.
Concurrent anticonvulsants may require dose adjustments while on above protocols. Supportive care for constipation, scoliosis, and weight loss is allowed.
Primary Purpose: Treatment
dextromethorphan, topiramate, Donepezil
Office of Rare Diseases (ORD)
Published on BioPortfolio: 2014-08-27T03:58:09-0400
Rett syndrome (RTT) is a disorder in which the nervous system does not develop properly. RTT generally affects girls, but there are some boys who have been diagnosed with RTT. Symptoms of ...
Increased brain glutamate and its NMDA receptors found in the brain of younger Rett syndrome (RTT) patients cause toxic damage to neurons (the brain's nerve cells), and contributing to EEG...
This is a phase 2 , open label, dose escalating study of Lovastatin in Rett syndrome.
The purpose of this study is to determine whether NNZ-2566 is safe and well tolerated in the treatment of Rett syndrome in children and adolescents.
The purpose of this study is to evaluate and determinate the functional abilities in Rett syndrome conforming to the established Pediatric Evaluation of Disability Inventory (PEDI).
Low bone mass is a frequent and early complication of girls with Rett syndrome. As a consequence of the low bone mass, Rett patients are at an increased risk of fragility fractures. This study aimed t...
People with Rett syndrome have deficient central autonomic control, which may interfere with walking. We have limited knowledge regarding the effects of exertion during physical activity in Rett syndr...
Stereotypical hand movements have been observed in most individuals diagnosed with Rett syndrome.
Rett syndrome is a severe neurodevelopmental disorder, mostly caused by a MECP2 gene mutation, with some overlaps with autism spectrum disorders and cerebral palsy. Pain perception is potentially abno...
A DNA-binding protein that interacts with methylated CPG ISLANDS. It plays a role in repressing GENETIC TRANSCRIPTION and is frequently mutated in RETT SYNDROME.
An inherited neurological developmental disorder that is associated with X-LINKED INHERITANCE and may be lethal in utero to hemizygous males. The affected female is normal until the age of 6-25 months when progressive loss of voluntary control of hand movements and communication skills; ATAXIA; SEIZURES; autistic behavior; intermittent HYPERVENTILATION; and HYPERAMMONEMIA appear. (From Menkes, Textbook of Child Neurology, 5th ed, p199)
Dextro form of levorphanol. It acts as a noncompetitive NMDA receptor antagonist, among other effects, and has been proposed as a neuroprotective agent. It is also a metabolite of DEXTROMETHORPHAN.
Condition with a variable constellation of phenotypes due to deletion polymorphisms at chromosome location 22q11. It encompasses several syndromes with overlapping abnormalities including the DIGEORGE SYNDROME, VELOCARDIOFACIAL SYNDROME, and CONOTRUNCAL AMOMALY FACE SYNDROME. In addition, variable developmental problems and schizoid features are also associated with this syndrome. (From BMC Med Genet. 2009 Feb 25;10:16) Not all deletions at 22q11 result in the 22q11deletion syndrome.
Methyl analog of DEXTRORPHAN that shows high affinity binding to several regions of the brain, including the medullary cough center. This compound is an NMDA receptor antagonist (RECEPTORS, N-METHYL-D-ASPARTATE) and acts as a non-competitive channel blocker. It is one of the widely used ANTITUSSIVES, and is also used to study the involvement of glutamate receptors in neurotoxicity.
Bioinformatics is the application of computer software and hardware to the management of biological data to create useful information. Computers are used to gather, store, analyze and integrate biological and genetic information which can then be applied...
Of all the types of Dementia, Alzheimer's disease is the most common, affecting around 465,000 people in the UK. Neurons in the brain die, becuase 'plaques' and 'tangles' (mis-folded proteins) form in the brain. People with Al...
Asthma COPD Cystic Fibrosis Pneumonia Pulmonary Medicine Respiratory Respiratory tract infections (RTIs) are any infection of the sinuses, throat, airways or lungs. They're usually caused by viruses, but they can also ...