gamma-glutamyl transpeptidase in glutathione biosynthesis Frontiers A Systematic Review of Serum

Tissue Repair Research

So people at greatest risk for deficiency include those with low stomach acid (e.g., older adults and people on proton pump inhibitors or antacids) or low IF production (known as pernicious anemia), people on medications that interfere with B12 absorption (such as metformin), people who have had gastric surgery, those with GI conditions that impair nutrient absorption (like celiac or Crohn's disease), and people on vegan and vegetarian diets

Protective role of selenium against hepatitis B virus and primary liver cancer in Qidong

The gene expression of cancer activators and lipid oxidative activators provides insights into the mechanisms behind these immunomodulatory effects

This is a considerable oversimplification because there are diverse mechanisms of brain inflammation 49