نتایج جستجو برای: dystrophin deletions
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BACKGROUND Mutations that disrupt the open reading frame and prevent full translation of DMD, the gene that encodes dystrophin, underlie the fatal X-linked disease Duchenne muscular dystrophy. Oligonucleotides targeted to splicing elements (splice switching oligonucleotides) in DMD pre-mRNA can lead to exon skipping, restoration of the open reading frame, and the production of functional dystro...
the sarcoglycanopathies (sgps) are a subgroup of autosomal recessive limb girdle muscular dystrophies (lgmds). they are caused by mutations in gamma, alpha, beta, and delta sarcoglycans (sgs) genes. alpha-sgps are the most frequent form of sgps. muscle biopsy studies in patients with sarcoglycanopathies have indicated that loss of one sg subunit leads to instability of whole sg complex. autozy...
OBJECTIVE The deletion in the dystrophin gene has been reported for many ethnic groups, but until now the mutations in this gene have not been thoroughly investigated in Saudi patients with Duchenne muscular dystrophy (DMD) and Becker muscular dystrophy (BMD). We examined the deletion pattern in the dystrophin gene of the Saudi patients applying multiplex-polymerase chain reaction (PCR). The ai...
(all multiplex PCRs are amplified in ϳ2.5 h, and the capillary gel electrophoresis of the pooled PCR products takes ϳ30 min), easy to perform, detects ϳ99% patients with macrodeletions and 89% with macrodupli-cations, and identifies small insertions or deletions. In conclusion, this method detects Ͼ70% of mutations in DMD/BMD families and can be easily applied to the screening of at-risk female...
Carrier determination is important for genetic counselling in DMD/BMD families. The detection of altered PCR amplified dystrophin mRNA fragments owing to deletions, insertions, or point mutations has increased the possibilities of carrier determination. However, problems may occur because of alternative splicing events. Here we present a family with a DMD patient characterised by a deletion of ...
The dystrophin deficiency leading to the severely progressing muscle degeneration in Duchenne muscular dystrophy (DMD) patients is caused by frame-shifting mutations in the DMD gene. We are developing a reading frame correction therapy aimed at the antisense-induced skipping of targeted exons from the pre-mRNA. Despite introducing a (larger) deletion, an in-frame transcript is generated that al...
espite recent research developments, Duchenne muscular dystrophy remains a fatal neuromuscular disease, affecting two to three boys in 10,000. It is an inherited X-linked recessive condition caused by a frameshift mutation in the dystrophin gene at the Xp21.2 locus of the X chromosome. Dystrophin is a large cell-membrane protein involved in calcium transport in the muscle cell. Boys with Duchen...
The lethal muscle-wasting disorder, Duchenne muscular dystrophy, is caused by mutations or deletions in the dystrophin gene. In skeletal and cardiac muscle, dystrophin associates with various proteins to form the dystrophinassociated protein complex (DAPC). The DAPC is thought to play a structural role in linking the actin cytoskeleton to the extracellular matrix, stabilizing the sarcolemma dur...
We carried out molecular deletion analysis on 142 patients with Duchenne/Becker muscular dystrophy which covered 25 exons of the dystrophin gene. We also evaluated the results by comparing with the clinical findings and examples in the literature. A deletion ratio of 63.7% was achieved. Exon 46 was the most frequently affected region. Interestingly we also observed four cases with muscle promot...
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