GK QUESTION#3636
In what condition does the body's immune system attack the actual intrinsic factor protein or the cells in your stomach lining that makes it?
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Answer
C. Pernicious anaemia
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Explanation
Pernicious anaemia is an autoimmune cause of vitamin B 12 malabsorption. Immune injury to stomach parietal cells or antibodies against intrinsic factor impair the intrinsic-factor-dependent absorption pathway.