Key Features: Mito and Neuromuscular Flashcards
Mito Disorders
Poor growth, exercise intolerance, hearing/vision loss, ID/learning, seizures, strokes
Barth
DCM and neutropenia
Leigh
Rapid and lethal lactic acidosis and cardiopulmonary failure
POLG
Psych issues, parkinsonism/chorea, standard mito symptoms
Pyruvate Dehydrogenase
Standard mito symptoms, Ketogenic diet helps treat
Mito Deletion Disorders
KSS, Pearson, CPEO, Leigh
ALS
Stephen Hawking – motor deterioration
CMT
Foot drop, muscle wasting
DMD
Muscle wasting/early death in boys, out-of-frame deletions
BMD
Muscle wasting, less severe than DMD, in-frame deletions
FSHD
Winged scapula, slowly progressive, due to large deletions on chromosome 4q35
Limb-Girdle
Late (10-30) onset muscle wasting
Nemaline Myopathy
AJ/Amish, muscle weakness/wasting, severe congenital with early death to mild
SMA Type I
Lack of motor development, lethal by age 2, SMN2 can make up for absent SMN1, more copies of SMN2, the less severe the presentation
Walker-Warburg
Most severe congenital muscular dystrophy, death by age 3