intrinsic factor test after b12 injection Factor: The Stomach Protein Essential for Absorption Intrinsic factor antibodies | GMED

Intrinsic factor antibodies GMED Gastric Intrinsic Factor & Vitamin B12 Binding Intrinsic factor is a key glycoprotein secreted by gastric parietal cellsessential for the absorption of vitamin B12 in the terminal ileum. Without it, even Intrinsic Factor Blocking Antibodies Second Opinion Physician Pernicious anaemia (an autoimmune disorder which results in reduced production of intrinsic factor) is the most common cause of severe vitamin B12 deficiency in the UK. How do intrinsic factor antibodies cause falsely elevated vitamin B12 levels?

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