SLC30A1 and amyotrophic lateral sclerosis: Remarkably, through the use of a sequence complementary to the microRNA let-7a (anti-Let7a) able to modulate ZnT1 expression, we showed in ALS mice its capability to: (1) prevent the reduction in ZnT1 levels in the spinal cord; (2) preserve motor neuron survival in the ventral spinal horn; (3) decrease astroglial and microglial activation while sparing resident microglial cells in the spinal cord; and (4) improve the lifespan and alleviate motor symptoms.