Short report: plasma somatostatin concentrations in the irritable bowel syndrome
2007
SUMMARY
The description of a patient with the irritable bowel syndrome whose symptoms were completely relieved by the administration of somatostatin raised the possibility that a deficiency of somatostatin may be involved in the pathogenesis of the disorder. We have examined this possibility by studying 11 healthy controls (35 ± 12 years; mean ± S.D. 8 female) and 10 irritable bowel syndrome patients (39 ± 14 years; 7 female) complaining of frequency of defaecation of 4 or more times a day. Plasma somatostatin concentrations were determined by specific radioimmunoassay, fasting and at 15, 30, 45, 60, 90, 120 and 180 min after a standard breakfast. Irritable bowel syndrome patients and controls had similar fasting (27.4 ± 5.1 vs. 35.2 ± 4.3 pg/ml; mean ± S.E.M. and integrated increment of post-prandial (5105 ± 858 vs. 3885 ± 793 pg. min/L) plasma concentrations of somatostatin, as assessed by student's t-test. These observations do not support the idea that a state of somatostatin deficiency exists in the irritable bowel syndrome.
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