Adult 3 Aged 3 Amyotrophic Lateral Sclerosis 3 Animals 3 Calcium 3 Calcium Channel Blockers 3 Calcium Channels 3 Calcium Channels, N-Type 3 Calcium Signaling 3 Calcium channels 3 Calcium homeostasis alteration 3 Dose-Response Relationship, Radiation 3 Drug Interactions 3 Electric Stimulation 3 Enzyme Inhibitors 3 Evoked Potentials 3 Female 3 Humans 3 IP3R 3 Immunoglobulin G 3 Immunohistochemistry 3 Immunoprecipitation 3 Inositol 1,4,5-Trisphosphate Receptors 3 Male 3 Mice 3 Middle Aged 3 Muscle Fibers 3 Neuromuscular Junction 3 Neurotransmitter Agents 3 Phospholipase C 3