Summary: To evaluate specific characteristics of phenotype, immune status, molecular and genetic as well as morphological characteristics of adult patients with limb-girdle muscular dystrophy R2 in various regions of the Russian Federation.

Summary: The investigators laboratory has been studying families with a history of ALS for more than 30 years and is continuing to use new ways to understand how genes may play a role in ALS, motor neuron disease and other neuromuscular disorders. The purpose of this study is to identify additional genes that may cause or put a person at risk for either familial ALS (meaning 2 or more people in a family wh...