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Genetic and Physical Characteristics of Rett Syndrome

2014-08-27 03:45:50 | BioPortfolio

Summary

Rett Syndrome (RTT) is a genetic brain disorder that occurs almost exclusively in females and is usually caused by a change (mutation) in the gene MECP2. The disorder is characterized by multiple developmental problems, as well as behavioral symptoms, such as repetitive stereotypic hand movements, including hand washing, wringing, and tapping. While there is no cure for RTT, recent advances in the understanding of the disease suggest that the development of new, effective therapies is promising. This study will gather information on the genetic defects that cause RTT, the physical expressions of these defects, and disease progression. In turn, this may direct the development of future treatments.

Description

RTT is a brain disorder that causes problems with childhood development. It is usually caused by an abnormality (mutation) in the gene MECP2. RTT can cause severe impairments in movement and communication skills, including talking and social interaction. The first signs of RTT include loss of acquired speech and loss of purposeful hand use for activities such as eating or playing. Individuals may also develop abnormal walking, repetitive hand movements, such as clapping or wringing, and abnormal breathing while awake.

Effective treatments for RTT are currently lacking. There is also inadequate information about the link between RTT's clinical features and its genetic basis. In order to prepare for future clinical trials that may lead to effective therapies, it is important to collect accurate information about the characteristics of RTT and the pattern of disease progression. This study will gather historical and physical examination data to establish phenotype-genotype correlations. Data on survival and quality of life in females with RTT and males with MECP2 gene mutations will also be evaluated.

Participants in this observational study will be recruited from the three sites at which the study is being conducted, as well as through the Rare Disease Clinical Research Network and the International Rett Syndrome Association (IRSA). Prior to study entry, potential participants are expected to be tested for a mutation in the MECP2 gene. No treatment will be administered at any time during this study. Study visits will occur every 6 months until the child is 12 years old and once a year for 5 years thereafter. At each study visit, participants will be examined to assess physical effects of the disease, such as motor behavior and disease severity. Additionally, participants will complete questionnaires about medical history, contact information, and quality of life. The first visit will last approximately 1.5 hours, and every subsequent visit will last approximately 1 hour.

Study Design

Observational Model: Cohort, Time Perspective: Prospective

Conditions

Rett Syndrome

Location

University of Alabama at Birmingham
Birmingham
Alabama
United States
35294

Status

Recruiting

Source

Office of Rare Diseases (ORD)

Results (where available)

View Results

Links

Published on BioPortfolio: 2014-08-27T03:45:50-0400

Clinical Trials [544 Associated Clinical Trials listed on BioPortfolio]

Pharmacological Treatment of Rett Syndrome With Statins

This is a phase 2 , open label, dose escalating study of Lovastatin in Rett syndrome.

A Safety Study of NNZ-2566 in Pediatric 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.

Functional Abilities in Rett Syndrome

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).

Treatment of Mitochondrial Dysfunction in Rett Syndrome With Triheptanoin

The aim of this study is to evaluate the safety and tolerability of triheptanoin in participants with Rett syndrome using laboratory values, electrocardiogram, rate of adverse events (AE),...

RETT Syndrome: An Exploratory Trial

Rett Syndrome (RTT) is a complex disorder resulting from mutations in a gene encoding protein. Currently, there are no methods to stop this malfunctioning protein. The symptoms of RTT can ...

PubMed Articles [5114 Associated PubMed Articles listed on BioPortfolio]

Validating the Rett Syndrome Gross Motor Scale.

Rett syndrome is a pervasive neurodevelopmental disorder associated with a pathogenic mutation on the MECP2 gene. Impaired movement is a fundamental component and the Rett Syndrome Gross Motor Scale w...

Prevalence and associated features of depression in women with Rett syndrome.

Little is known about depression among women with Rett syndrome (RTT) despite recent advances in knowledge about RTT. In this study, we aimed to establish the prevalence of depression among women with...

How can clinical ethics guide the management of comorbidities in the child with Rett syndrome?

Rett syndrome is a rare disorder caused by a mutation in the MECP2 gene. Those affected generally have severe functional impairments, and medical comorbidities such as scoliosis and poor growth are co...

Clinical Guidelines for Management of Bone Health in Rett Syndrome Based on Expert Consensus and Available Evidence.

We developed clinical guidelines for the management of bone health in Rett syndrome through evidence review and the consensus of an expert panel of clinicians.

The role of transcranial magnetic stimulation in evaluation of motor cortex excitability in Rett syndrome.

Rett syndrome (RTT) is a frequent neurodevelopmental disorder confirmed by clinical criteria and supported by the methyl-CpG-binding protein 2 gene (MECP2) mutation. A short central motor conduction t...

Medical and Biotech [MESH] Definitions

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)

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.

Rare congenital disorder with multiple anomalies including: characteristic dysmorphic craniofacial features, musculoskeletal abnormalities, neurocognitive delay, and high prevalence of cancer. Germline mutations in H-Ras protein can cause Costello syndrome. Costello syndrome shows early phenotypic overlap with other disorders that involve MAP KINASE SIGNALING SYSTEM (e.g., NOONAN SYNDROME and cardiofaciocutaneous syndrome).

An autosomal dominant aneurysm with multisystem abnormalities caused by increased TGF-BETA signaling due to mutations in type I or II of TGF-BETA RECEPTOR. Additional craniofacial features include CLEFT PALATE; CRANIOSYNOSTOSIS; HYPERTELORISM; or bifid uvula. Phenotypes closely resemble MARFAN SYNDROME; Marfanoid craniosynostosis syndrome (Shprintzen-Goldberg syndrome); and EHLERS-DANLOS SYNDROME.

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