Muscular dystrophy, Becker
A form of muscular dystrophy (MD) that is similar to Duchenne MD but milder. Patients with Becker MD produce a little of the key protein, dystrophin, whereas those with Duchenne make none. Progression of Becker MD is slower and symptoms tend to appear later than progression of Duchenne MD. Both Becker and Duchenne MD result from mutations in the gene on the X chromosome that encodes dystrophin.
Read Also:
- Muscular dystrophy, congenital
A form of muscular dystrophy that is present at birth. Various types of congenital MD have been identified, each caused by a different genetic error. Congenital MD can affect males or females. Diagnosis is initially by observation of general muscle weakness (hypotonia). See also muscular dystrophy, myotonic.
- Muscular dystrophy, distal
A rare type of muscular dystrophy (MD) that typically begins in adulthood and involves the muscles that are most distant from the midline, such as those of the hands and feet. Distal MD is inherited in an autosomal dominant manner and affects males and females. Also known as distal myopathy and distal hereditary myopathy.
- Muscular dystrophy, Emery-Dreifuss
A form of muscular dystrophy (MD) that begins in childhood or the teen years. It is a slowly progressing disorder that begins in the upper arms or upper legs. Contractures of the limbs are common, as are serious heart problems. Emery-Dreifuss MD is caused by mutation in the gene that encodes emerin on the X […]
- Muscular dystrophy, facioscapulohumeral
A form of muscular dystrophy that begins before age 20, with slowly progressive weakness of the muscles of the face, shoulders, and feet. The severity of the disease is variable. Abbreviated FSMD. Although most people with FSMD retain the ability to walk, about 20 percent of affected individuals require wheelchairs. Life expectancy for FSMD is […]
- Muscular dystrophy, limb-girdle
A form of muscular dystrophy (MD) that may begin in childhood or any time later, with slowly progressive weakness and wasting of the muscles in the hips or shoulders. Limb-girdle MD is caused by a number of genetic defects and can affect both males and females.