Symptoms of AR Gene Spinal and Bulbar Muscular Atrophy X-Linked Genetic Test Spinal and Bulbar Muscular Atrophy (SBMA), also known as Kennedy’s Disease, is a rare, X-linked recessive genetic disorder that primarily affects males. It is caused by mutations in the androgen receptor (AR) gene, leading to the degeneration of motor neurons in the spinal […]











