As such, every student within the district has a right to attend at least one of the District of Columbia Public Schools (DCPS) beginning in kindergarten through grade 12. A right-to-attend school can be identified as a studentâs in-boundary school or feeder-pattern school. Families who wish to enroll their child in a right-to-attend school do not need to submit a My School DC lottery application.
Print. Email. Children with myotubular myopathy, a rare, inherited disease, often require a ventilator and most do not reach adulthood. The condition affects an estimated one in 50,000 male newborns and is characterized by weakness in the muscles used for movement and affects the ability to sit, stand, walk and breathe.
Many of the inherited myopathies are caused by mutations that interfere with ion channels, causing either too much or too little current from flowing through the muscle cells. These disorders (myotonia congenita, paramyotonia congenita, periodic paralysis and central core disease) are sometimes called channelopathies. Central core disease seems to damage, and thus weaken, muscles by causing an excess release of calcium from internal storage compartments. A fifth myopathy, nemaline myopathy, is caused by mutations that affect filament proteins.