H. S. Fuessl

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A radioimmunoassay has been developed for the new intestinal hormonal peptide tyrosine tyrosine [peptide YY (PYY)]. Peptide YY concentrations were measured in separated layers of the human gastrointestinal tract, where PYY was found exclusively in the mucosal epithelium which contained the endocrine cells. Peptide YY was found throughout the small(More)
The effects of guar granules sprinkled over food on carbohydrate and lipid metabolism were studied in a double-blind cross-over trial in 18 patients with non-insulin-dependent diabetes mellitus (mean +/- SEM age 61.3 +/- 2.5 years). Five-gram guar granules (Guarem, Rybar Laboratories, Amersham, Bucks) were sprinkled over food at each main meal for 4 weeks,(More)
To investigate the possible role of peptide YY (PYY) in the adaptive changes that accompany enterectomy, plasma levels of this peptide were measured during breakfast in patients with resected small or large intestines and in controls. In 18 patients who had undergone partial ileal resection, basal PYY concentrations were greatly elevated when compared with(More)
SMS 201-995 (5-100 micrograms) injected subcutaneously in normal and type-2 diabetic subjects 30 min before a test meal caused dose-related suppression of plasma concentrations of insulin, glucagon, and several regulatory gut peptide hormones (gastrin, gastric inhibitory peptide, pancreatic polypeptide, secretin, neurotensin, and motilin). Effective hormone(More)
SMS 201-995 is an octapeptide analogue of somatostatin. The effect of a single subcutaneous (s.c.) injection of 50 micrograms SMS 201-995 on post-prandial intermediary metabolism was investigated in normal subjects. In spite of a long-lasting post-prandial suppression of insulin secretion, there were no significant changes in the plasma concentration of(More)
Plasma samples of seven patients with gut and pancreatic endocrine tumours who have been on long-term treatment with a long-acting somatostatin analogue (SMS 201-995) were investigated for endogenous antibodies to the peptide by incubation with radiolabelled SMS 201-995. The duration of treatment with the somatostatin analogue was between 9 and 26 months(More)
Oral administration of SMS 201-995 (SMS), a subcutaneously injectable somatostatin analogue, was investigated in five healthy volunteers, who drank 2 mg of SMS with 75 g of glucose. Mean maximal plasma SMS concentrations after the 2 mg oral dose were comparable with those after subcutaneous injection of 50 micrograms, although the peak was delayed (90 vs 15(More)