Abstract:
PURPOSE: A composition for preventing and treating muscular hypotonia related diseases including STIM1 mutation is provided to improve muscular hyponia in patients suffering from skeletal muscular diseases and other diseases as well. CONSTITUTION: A pharmaceutical composition for preventing and treating muscular hypotonia related diseases selected among muscular hypotonia, Down syndrome, muscular dystrophy, cerebral palsy, Prader-Willi syndrome, and Tay-Sachs disease. Stromal interaction molecule 1 (STIM1)-E136X protein having amino acid sequences of sequence number 1 or a gene coding the same is included. The STIM1-E136X protein or the gene coding the same increases calcium influx into cytoplasm for excitation-contraction mechanism of skeletal muscles, but no effect on store-operated Ca2+-entry (SOCE). The composition is applied to the patient has innate STIM1 mutation.