ITGA7 and amyotrophic lateral sclerosis: Do enteric glial cells and Itga-7+ glial cells express the mitochondrial melatonergic pathway, and is this altered in ALS, including by GBH, leading to alterations in how these astrocyte-like cells form crucial hubs to regulate important cellular and intercellular changes within the gut and mucosal immune system in ALS pathoetiology?