Mast cells are hypersensitive immune cells that release histamine and other inflammatory mediatorsoften in response to oxidative stress, environmental toxins, and immune imbalance. Many patients with MCAS have low levels of glutathione. Recruitment or activation of mast cells in the liver aggravates the accumulation of fibrosis in carbon tetrachloride induced liver injury ScienceDirect Glutathione prevents high glucose induced pancreatic fibrosis by suppressing pancreatic stellate cell activation via the ROS TGF SMAD pathway Cell Death & Disease Mast cells: A dark horse in osteoarthritis treatment Mast cell activation syndrome, neck pain and the vagus nerve The Importance of Glutathione in Health and Healing Dr. Todd Maderis