MedNexus
2016年 · 第39卷第04期
MedNexus
Duchenne muscular dystrophy (DMD) is the most common severe muscular dystrophy in childhood, which occurs more than before the age of 5. Most boys with DMD basically lose their walking ability after the age of 12, and a few survive until the age of 25. Becker muscular dystrophy (BMD) has milder clinical symptoms than DMD, and loses independent walking ability more than 16 years old. Both DMD and BMD are X-linked recessive genetic disorders caused by mutations in the dystrophin gene localized to Xp21.2. At present, there is no effective treatment for this disease, so it is the key means to intervene with birth defects to diagnose probands, detect carriers and implement effective prenatal diagnosis to prevent the birth of children.
According to the capsular serotyping, Klebsiella pneumoniae can be classified into 78 serotypes. Capsular serotypes K1, K2, K20, K54 and K57 of Klebsiella pneumoniae have shown strong virulence characteristics in animal experiments, and have been found to be closely related to human liver abscess, endophthalmitis, peritonitis and other invasive diseases[
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