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Cardiac Outcome Measures in Children With Muscular Dystrophy

2014-07-23 21:10:39 | BioPortfolio

Summary

The purpose of the research study is to evaluate different cardiac measures that are obtained by echocardiographic tests in patients with muscular dystrophy.

Description

The research study will include 50 participants aged 8 to 18 years old (before 18th birthday) with Duchenne, Becker, or autosomal recessive limb-girdle (specifically: LGMD 2C-2F and 2I) muscular dystrophies.

Participants will be seen in one of five Cooperative International Neuromuscular Research Group (CINRG) centers located in the United States.

All study assessments will be completed in the same day and include reviewing past medical and surgical history, collecting vital signs, collecting cardiac measures through echocardiographic tests.

Study Design

Observational Model: Case-Only, Time Perspective: Cross-Sectional

Conditions

Duchenne Muscular Dystrophy

Location

University of Pittsburgh
Pittsburgh
Pennsylvania
United States
15213

Status

Recruiting

Source

Cooperative International Neuromuscular Research Group

Results (where available)

View Results

Links

Published on BioPortfolio: 2014-07-23T21:10:39-0400

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Medical and Biotech [MESH] Definitions

A muscle protein localized in surface membranes which is the product of the Duchenne/Becker muscular dystrophy gene. Individuals with Duchenne muscular dystrophy usually lack dystrophin completely while those with Becker muscular dystrophy have dystrophin of an altered size. It shares features with other cytoskeletal proteins such as SPECTRIN and alpha-actinin but the precise function of dystrophin is not clear. One possible role might be to preserve the integrity and alignment of the plasma membrane to the myofibrils during muscle contraction and relaxation. MW 400 kDa.

A strain of mice arising from a spontaneous MUTATION (mdx) in inbred C57BL mice. This mutation is X chromosome-linked and produces viable homozygous animals that lack the muscle protein DYSTROPHIN, have high serum levels of muscle ENZYMES, and possess histological lesions similar to human MUSCULAR DYSTROPHY. The histological features, linkage, and map position of mdx make these mice a worthy animal model of DUCHENNE MUSCULAR DYSTROPHY.

An X-linked recessive muscle disease caused by an inability to synthesize DYSTROPHIN, which is involved with maintaining the integrity of the sarcolemma. Muscle fibers undergo a process that features degeneration and regeneration. Clinical manifestations include proximal weakness in the first few years of life, pseudohypertrophy, cardiomyopathy (see MYOCARDIAL DISEASES), and an increased incidence of impaired mentation. Becker muscular dystrophy is a closely related condition featuring a later onset of disease (usually adolescence) and a slowly progressive course. (Adams et al., Principles of Neurology, 6th ed, p1415)

MUSCULAR DYSTROPHY that occurs in VERTEBRATE animals.

A heterogenous group of inherited muscular dystrophy without the involvement of nervous system. The disease is characterized by MUSCULAR ATROPHY; MUSCLE WEAKNESS; CONTRACTURE of the elbows; ACHILLES TENDON; and posterior cervical muscles; with or without cardiac features. There are several INHERITANCE PATTERNS including X-linked (X CHROMOSOME), autosomal dominant, and autosomal recessive gene mutations.

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Muscular Dystrophy
Muscular dystrophy is a group of degenerative inherited disorders causing muscle weakness and loss of muscle tissue. The different types are Becker muscular dystrophy, Duchenne muscular dystrophy, Emery-Dreifuss muscular dystrophy, Facioscapulohumeral mu...


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