Muscular Dystrophy Is Not A Disease

1251 Words Nov 27th, 2014 6 Pages
Muscular dystrophy is not a disease; it’s a term for a genetic mutation. “The disease, mostly affecting males, is transmitted as a sex-linked recessive trait” (Taber’s Cylopedic Medical Dictionary, 2013 pg. 736). There are 9 different types of muscular dystrophy. The two most common types of muscular dystrophy are Duchenne and Becker. “MD is a progressive degeneration of skeletal muscles from an as yet unknown biochemical defect within the muscle” (Sommers, 2011 pg. 691).
Males are affected way more often than females because the mutation of the gene occurs on the X chromosome. Since males only have one X chromosome if that chromosome is mutated then the signs and symptoms of muscular dystrophy show up and because females have two X chromosomes both chromosomes would have to be affected by the mutation in order for signs and symptoms to show. However, when the one X chromosome is affected in a female and she would then be a carrier of the mutated chromosome and could pass it on if she would give birth to a son. Girls very rarely get this disease due to the reason of having two X chromosomes but if a female does have the mutated gene they may show signs of muscle weakness sometimes but this is also very uncommon.
Duchenne muscular dystrophy affects mostly the shoulder and pelvic girdle muscles. It starts in early childhood and progresses very quickly. Becker muscular dystrophy does not usually become apparent until adolescence. It progresses slower than Duchenne muscular…
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