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GTR Home > Conditions/Phenotypes > Leukoencephalopathy with brain stem and spinal cord involvement-high lactate syndrome
Leukoencephalopathy with brain stem and spinal cord involvement and lactate elevation (LBSL) is characterized by slowly progressive cerebellar ataxia and spasticity with dorsal column dysfunction (decreased position and vibration sense) in most individuals. The neurologic dysfunction involves the legs more than the arms. The tendon reflexes are retained. Deterioration of motor skills usually starts in childhood or adolescence, but occasionally not until adulthood. Dysarthria develops over time. Occasional findings include epilepsy; learning problems; cognitive decline; and reduced consciousness, neurologic deterioration, and fever following minor head trauma. Individuals with neonatal or early-infantile onset have a severe disease course often associated with early death. Those with childhood onset have slow progression with wheelchair dependence in the teens or twenties. Adult onset is associated with slow progression and mild impairment.

Available tests

52 tests are in the database for this condition.

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Genes See tests for all associated and related genes

  • Also known as: ASPRS, LBSL, MT-ASPRS, mtAspRS, DARS2
    Summary: aspartyl-tRNA synthetase 2, mitochondrial

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