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  • Title: Upper gastrointestinal responses to intraduodenal nutrient in type 1 diabetes mellitus.
    Author: Rayner CK, Schwartz MP, van Dam PS, Renooij W, de Smet M, Horowitz M, Wishart JM, Smout AJ, Samsom M.
    Journal: Eur J Gastroenterol Hepatol; 2004 Feb; 16(2):183-9. PubMed ID: 15075992.
    Abstract:
    BACKGROUND: Abnormal nutrient-related small-intestinal feedback may contribute to disordered gastric motility and upper gastrointestinal symptoms in patients with diabetes. AIM: To evaluate the motor, sensory and incretin responses to intraduodenal nutrients in patients with type 1 diabetes and in controls. METHODS: Eight type 1 diabetes patients (two with autonomic neuropathy) and nine controls were studied during euglycaemia. A manometric catheter was positioned across the pylorus, and nutrient was infused intraduodenally (90 kcal over 30 min). Blood glucose and plasma glucagon-like peptide 1 and gastric inhibitory polypeptide were measured, and sensations were assessed with visual analogue questionnaires. RESULTS: During nutrient infusion, neither the number of antral waves nor the stimulation of phasic or basal pyloric pressures differed between patients and controls. Upper gut sensations and areas under the plasma incretin peptide curves did not differ between the groups. CONCLUSIONS: During euglycaemia, the upper gastrointestinal motor, sensory and incretin peptide responses to small-intestinal nutrient are comparable in patients with relatively uncomplicated type 1 diabetes and in healthy subjects.
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