期刊
CLINICAL GASTROENTEROLOGY AND HEPATOLOGY
卷 13, 期 6, 页码 1051-1057出版社
ELSEVIER SCIENCE INC
DOI: 10.1016/j.cgh.2014.07.020
关键词
Pathogenesis; Intestine; SCFA; Absorption
资金
- National Institutes of Health [R01-DK92179]
Although diarrhea is the predominant bowel dysfunction in as many as one-third of patients with irritable bowel syndrome (IBS), it is unclear whether there is a specific disorder of intestinal fluid or electrolyte secretion in IBS. Diarrhea is generally considered a result of accelerated colonic transit in patients with IBS. Although a primary secretory diathesis has not been well-documented in patients with IBS with diarrhea (IBS-D), several mechanisms that could potentially contribute to intestinal secretion have been reported. Some of these mechanisms also influence motor and secretory dysfunctions that contribute to the pathophysiology of IBS-D. We review the evidence supporting secretion in IBS-D caused by peptides and amines produced by enteroendocrine cells or submucosal neurons, enterocyte secretory processes, and intraluminal factors (bile acids and short-chain fatty acids). Understanding these mechanisms and developing clinical methods for their identification could improve management of patients with IBS-D.
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