Persons with the serious disorder ALS, can have a genetic mutation that causes the protein SOD1 to aggregate in motor neurons in the brain and spinal cord. Researchers have discovered that, when injected into mice, the SOD1 aggregation spreads rapidly leading to ALS.

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Persons with the serious disorder ALS, can have a genetic mutation that causes the protein SOD1 to aggregate in motor neurons in the brain and spinal cord. Researchers have discovered that, when injected into mice, the SOD1 aggregation spreads rapidly leading to ALS.