Pernicious anemia in African Americans

Antony Irungu, Uche Ike & Anita Lwanga
Pernicious anemia, an autoimmune disorder characterized by the inability to absorb Vitamin B12, can be caused by decreased intrinsic factor (IF), antibodies against parietal cells, antibodies against IF, chronic atrophic gastritis or gastrectomy. Traditionally pernicious anemia was thought to affect primarily elderly individuals of Northern European descent. However, a study done at Cook County Hospital, in 1971, reported that 93 out of 1000 patients diagnosed with pernicious anemia in between 1931 to 1942 were African...
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