Somatostatin concentrations in plasma were measured before and after a
standardized fat and protein-rich fluid test meal in patients with an
orexia nervosa, weight-recovered anorectic patients, obese women, and
healthy controls. Somatostatin was significantly elevated in all four
groups after the test meals. Hormone levels remained elevated for up t
o 100 min after the test meal. The area under the response curve was s
ignificantly higher (p < .01) in the anorectic patients as compared wi
th healthy controls and weight-recovered anorectics. Obese women had b
lunted somatostatin responses. The findings may explain alterations in
insulin secretion and in gastric emptying described earlier in patien
ts with eating disorders. (C) 1994 by John Wiley & Sons, Inc.