|
Duchenne Muscular Dystrophy Information
Muscular dystrophy is the general name to
given to over 40 different neuromuscular diseases. The Danny
Foundation is focused on only one: Duchenne muscular
dystrophy. Duchenne muscular dystrophy (DMD) is a progressive
muscle wasting disease that causes loss of muscle function and
independence. DMD is the most common and most lethal genetic
disorder diagnosed during early childhood. While most cases
are inherited genetically from a faulty gene, approximately 35% of
new cases are spontaneous gene mutations. Every year about
20,000 (or 1 out of every 3,500) boys throughout the world are born
with DMD. DMD is caused by a faulty gene on the X chromosome
that makes dystrophin, a protein that hold muscles together.
Boys are usually
diagnosed with DMD by the age of six (Danny was five). The
diagnosis can be delayed because parents and doctors will sometimes
miss the signs of muscle weakness which include problems with stair
climbing, running, jumping and most other physical activities.
Most boys lose the ability to walk around the ages of 10-14 (Danny
was nine) and by their late teens will lose much of their upper body
strength. Eventually, the lung muscles weaken which causes the
need for assisted ventilation. The heart muscles will also
weaken over time leading to dilated cardiomyopathy, a condition
involving weakness of the heart muscle. Young men frequently
lose their battle with DMD by the time they reach their late 20s.
When Danny was first diagnosed, boys did not typically survive past
their teens! The use of various medications, such as steroids
and cardiac medicines as well as a better understanding of pulmonary
issues has made a huge impact on these young men.
Research is moving forward in leaps and bounds, however nothing has
changed the ultimate survival rate since the gene was first found in
1986. There is still no known cure or treatment for DMD.
Please visit
Parent Project Muscular Dystrophy
or the
MDA websites for more in- depth information regarding DMD.
|