Dietary guidance normalises large intestinal endocrine cell densities in patients with irritable bowel syndrome
A research paper in the European Journal Of Clinical Nutrition published a paper looking at the effects of a low POLYOL diet on a subset of endocrine cells linked to IBS in a set of symptomatic patients. The results suggest that the diet has an effect on the cell expression.
To determine the large intestinal endocrine cell types affected following dietary guidance in patients with irritable bowel syndrome (IBS).
The study included 13 IBS patients and 13 control subjects. The patients received three sessions of individualized dietary guidance. Both the control subjects and the patients were scheduled for colonoscopies at baseline and again for the patients at 3–9 months after dietary guidance. Biopsy samples were taken from the colon and rectum and were immunostained for all types of large intestinal endocrine cells. The endocrine cells were quantified using computerized image analysis.
The daily total consumption (mean±s.e.m. values) of fruits and vegetables rich in FODMAPs (fermentable oligosaccharides, disaccharides, monosaccharides and polyols) decreased significantly from 16.2±5.3 g before receiving dietary guidance to 9.2±3.2 g after receiving dietary guidance (P=0.02). In the total colon, the densities of serotonin cells were 46.8±8.9, 10.5±2.1 and 22.6±3.2 cells/mm2 in control subjects and in IBS patients before and after receiving dietary guidance, respectively (P=0.007); the corresponding densities of peptide YY cells were 11.6±1.8, 10.8±1.7 and 16.8±2.1 cells/mm2, respectively (P=0.06). The cell densities for both serotonin and peptide YY did not change significantly in the rectum. The densities of somatostatin cells in the rectum were 13.5±3.0, 13.2±3.0, and 22.3±3.2 cells/mm2 for control subjects and for IBS patients before and after receiving dietary guidance, respectively (P=0.01).
The densities of the large intestinal endocrine cells tend to normalize following dietary guidance that may have contributed to the improvement of the patients with IBS symptoms.
Mazzawi T, Hausken T, Gundersen D, El-Salhy M.. Dietary guidance normalizes large intestinal endocrine cell densities in patients with irritable bowel syndrome. Eur J Clin Nutr. 2015 Nov 25. View Abstract
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