Detection of gastric parietal cell antibodies of the
IgG class in human sera. Autoantibodies to gastric parietal cells are
found in approximately 90% of patients with pernicious anemia and in
about 30% of first degree relatives of patients with pernicious anemia.
Increased levels of gastric parietal cells have been found in patients
with thyroid disease, iron deficiency anemia, alopecia areata, and