Glutathione prevents high glucose induced pancreatic fibrosis by suppressing pancreatic stellate cell activation via the ROS TGF SMAD pathway Cell Death & Disease Which Blood Tests Require Fasting Glutathione Index Test Measure Antioxidant Levels At Home Fatty Acid Labs Blood Plasma Quality Control by Plasma Glutathione Status Fasting before a blood test. #LearnHealthWithDML #PathologyYouCanTrust C peptide is a biomarker for beta cell function. In other words, it's a measure of beta cell health and insulin production, and is critical to developing new disease modifying therapies for type 1