IRE1 determines ferroptosis sensitivity through regulation of glutathione synthesis Nature Communications Mast Cell Activation Syndrome Levitas Clinic Guildford JCI 15LO1 dictates glutathione redox changes in asthmatic airway epithelium to worsen type 2 inflammation 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. Ways to Address Perinatal Mast Cell Activation and Focal Brain Inflammation, including Response to SARS CoV 2, in Autism Spectrum Disorder