title: Serum gastrin response to feeding in achlorhydric patients.
abstract: We have measured the serum gastrin response to feeding in 3 groups of achlorhydric patients, and have compared the results with those of 12 normal controls. An increased postprandial serum gastrin response was found in 6 of 8 patients with hypergastrinemia and pernicious anemia, in all 10 patients with hypergastrinemia and normal absorption of vitamin B12, and in 2 of 7 achlorhydric patients with normal fasting serum gastrin levels. A reduced serum gastrin response to feeding was found in 2 patients with pernicious anemia and very high basal serum gastrin levels of 3,010 and 3,800 pg/ml, and in one achlorhydric patient with normogastrinemia. The remaining 4 patients with achlorhydria and normogastrinemia had normal postprandial serum gastrin responses. It is concluded that the serum gastrin response to feeding in patients with achlorhydria is heterogeneous.
mesh_terms: D000126:Achlorhydria / Q000097:blood*; D000328:Adult; D000368:Aged; D000752:Anemia, Pernicious / Q000097:blood; D005215:Fasting; D005260:Female; D005502:Food; D005755:Gastrins / Q000097:blood*; D006801:Humans; D008297:Male; D008875:Middle Aged
chemical_list: D005755:Gastrins