VEGFA and amyotrophic lateral sclerosis: VEGF‐A was previously implicated in motor neuron degeneration, as low VEGF‐A expression leads to adult‐onset motor neuron degeneration in mice, reminiscent of human amyotrophic lateral sclerosis (ALS) 81, and exogenous VEGF‐A administration has significant therapeutic effects in ALS rodent models 82, 83.