This information is provided by the National Institutes of Health (NIH) Genetic and Rare Diseases Information Center (GARD).
Spastic paraplegia 11 (SPG11) is a form of hereditary spastic paraplegia. People with SPG11 experience worsening muscle stiffness leading to eventual paralysis of the lower limbs, as well as a range of other neurologic symptoms that may include intellectual disability, speech difficulties (dysarthria), and reduced bladder control. Additionally, the tissue connecting the left and right halves of the brain (corpus callosum) is abnormally thin in most individuals with SPG11. Onset of symptoms typically occurs during infancy or adolescence. SPG11 is caused by mutations in the SPG11 gene and is inherited in an autosomal recessive fashion. Treatment is focused on managing symptoms and may include physical therapy and antispastic medications to prolong muscle control.
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