From the point of view of genetic counselling carrier detection is most important in X-linked disorders. Okinaka et al. (1959) were the first to employ the serum level of creatine kinase to detect female carriers of X-linked Duchenne muscular dystrophy. Since then many investigators have confirmed the usefulness and reliability of this test. So far results on over 200 carriers have been reporte...

Duchenne and Becker muscular dystrophies are X-linked allelic disorders in which the association of central nervous system dysfunction, typically in the form of mental retardation, is a well recognized feature. They are both due to mutations in the dystrophin gene, whose corresponding protein products are expressed both in the muscle and central nervous system. We have observed an increased fre...

Using a questionnaire-based study, we assessed the parent-reported prevalence of attention-deficit hyperactivity disorders (ADHDs), autism spectrum disorders, and obsessive-compulsive disorders in a group of 351 males with Duchenne muscular dystrophy. Of the 351 males with Duchenne muscular dystrophy, 11.7% were reported to have a comorbid diagnosis of ADHD, 3.1% had autism spectrum disorder, a...

et. al, 1968/1969) and give an estimate of 0-23 for the recombination fraction with 9500 confidence limits of 0-13 to 0 43. These results confirm the linkage relationships between deutan colour blindness and Becker muscular dystrophy but since the loci for Duchenne muscular dystrophy and colour blindness are not within measurable distance of each other these results indicate that the Becker and...

BACKGROUND Fat embolism syndrome is the result of systemic manifestations of fat emboli in the microcirculation. Duchenne muscular dystrophy is a condition that increases the risk of fracture resulting in fat emboli. CASE REPORT We describe a patient with Duchenne muscular dystrophy who exhibited cardiopulmonary, neurologic, and ophthalmologic sequelae consistent with fat emboli syndrome afte...

We analyzed quantitative maps of T1 and T2 relaxation times and muscle fat fraction measurements in magnetic resonance imaging of the upper arm skeletal muscles and heart in ambulatory boys with Duchenne muscular dystrophy and age-range-matched healthy volunteer boys. The cardiac-optimized sequences detected fatty infiltration and edema in the upper arm skeletal muscles but not the myocardium i...

This chapter places emphasis on patients with more weakness in proximal than distal parts. The most common type of proximal muscular dystrophy is Duchenne muscular dystrophy (DMD). Due to rapid deterioration, DMD can be seen as a severe form of muscular dystrophy. Other types of proximal muscular dystrophies have a slower rate of disease progression compared to DMD, such as Beck muscular dystro...

Duchenne muscular dystrophy is caused by mutations in the DMD gene that disrupt the open reading frame and prevent the full translation of its protein product, dystrophin. Restoration of the open reading frame and dystrophin production can be achieved by exon skipping using antisense oligonucleotides targeted to splicing elements. This approach aims to transform the Duchenne muscular dystrophy ...

X-linked dilated cardiomyopathy (XLDCM) is a distinct phenotype of dystrophinopathy characterized by preferential cardiac involvement without any overt skeletal myopathy. XLDCM is caused by mutations of the Duchenne muscular dystrophy (DMD) gene and results in lethal heart failure in individuals between 10 and 20 years. Patients with Becker muscular dystrophy, an allelic disorder, have a milder...