Myasthenia gravis in the elderly
Myasthenia gravis (MG) is an autoimmune disease with impaired neuromuscular synaptic transmission. The main clinical feature is that the affected skeletal muscles are easily fatigued, and the symptoms can be relieved after rest or anticholinesterase drugs. Myasthenia gravis is a polygenic disease. It is currently believed that anti-acetylcholine receptor (AchR) antibodies and antibody-mediated humoral immunity and T cell-mediated cellular immunity are its main pathogenesis. The thymus is the main factor in activating and maintaining the autoimmune response of myasthenia gravis. Genetic and environmental factors are also closely related to the onset of myasthenia gravis.