Muscular Dystrophy Flashcards
What is nd caused by
Incorrect or missing genetic info
What is muscular dystrophy
Genetic disorder which gradually weakens the body’s muscles
What does md prevent the body form doing
Making proteins to build and maintain healthy muscle
What is the most common muscle disease of childhood
Muscular dystrophy
When does md start
In infancy or doesn’t appear till adulthood
Phew is duchennes or beckers md passed in
From mother to son on X chromosome
Can skip generations
Can arise form new mutation
Where does myotonic dystrophy come from
Either parent carries the defective gene, there’s a 50% chance the disorder will new passed to child
Where do other md types come from
Defective gene from parents
Passed on from generation to generation will males and females affected equally
First symptoms of md
Stumble, waddle, toe walking, difficulty going up stairs, struggle to get from sitting or hard time pushing things
What is common to develop in md
Large calf muscles- psedohypertrophy
Types of md
Duchennes Becker Myotonic Limb girdle Fasciscapulohumeral
What’s the most common and sever md
Duchennes
How many people does duchennes affect
1 out of 3500 boys
What is duchennes caused by
Deficiency in dystrophin
What are the symptoms of duchennes and when do they appear
Around 5 Fatigue Muscle weakening beginning in pelvic girdle going to shoulder girdle and all muscles Respiratory affected Enlarged calves Id Gowers sign Loss on independent ambulatory by 9 Advanced stages:curvature of spine (scoliosis) and contractures of joints.