Pernicious anemia refers to a type of autoimmune anemia.
Antibodies are directed against intrinsic factor or parietal cells which produce intrinsic factor.
Intrinsic factor is required for vitamin B12 absorption, so impaired absorption of vitamin B12 can result.
An anemia is a deficiency of the blood cells, but in addition to blood cells, many other cells in the body need vitamin B12, including nerve cells.
For more information about the topic Pernicious anemia, read the full article at Wikipedia.org, or see the following related articles:
Editor's Note: This article is not intended to provide medical advice, diagnosis or treatment.
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