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Biol Psychiatry 2015

Xenobiotica 1993

Other malabsorption causes include: Atrophic gastritis and reduced gastric acid production (common in older adults) Gastrointestinal surgery, particularly gastrectomy, ileal resection, or bariatric surgery (especially gastric bypass) Inflammatory bowel disease affecting the terminal ileum (Crohn's disease) Coeliac disease and other small bowel disorders Chronic pancreatitis affecting enzyme secretion Helicobacter pylori infection (may contribute to reduced absorption) Medication-related deficiency is increasingly recognised

Though G6PD is found in the cytoplasm of all mammals cells, its deficiency is more evident in the red blood cells probably because these cells live without nucleus for a long time and because they contain proteases that degrade the mutant enzyme in major degree than other proteases in other tissues 1

Similar to DON, acivicin and azaserine are also glutamine analogs that interrupt nucleotide synthesis by inhibiting amidotransferases [110, 116]

These cells are a crucial part of the adaptive immune system, important for recognizing and fighting specific pathogens