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Pubmed-Latest Insights on the Pathogenesis of Irritable Bowel Syndrome


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Gastroenterol Clin North Am. 2021 Sep;50(3):505-522. doi: 10.1016/j.gtc.2021.04.002.

ABSTRACT

The pathogenesis of irritable bowel syndrome is multifactorial and complex. Our understanding of its pathophysiology has evolved, but remains incompletely understood. Symptoms result from a dysregulation of brain-gut interactions. Evidence has identified alterations in central and peripheral (gut) mechanisms in irritable bowel syndrome and the bidirectional communication between the brain and the gut. Pertinent mechanisms include disturbed gut motility, visceral hypersensitivity, altered mucosal and immune function, altered gut microbiota, and altered central nervous system processing. This review addresses factors that increase the risk of irritable bowel syndrome and the central and peripheral mechanisms thought to underlie its symptoms.

PMID:34304785 | DOI:10.1016/j.gtc.2021.04.002

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