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Updated: May 22, 2026

Murine Distal Colostomy, A Novel Model of Diversion Colitis in C57BL/6 Mice
Published on: July 12, 2018
Colonic diverticular disease: abnormalities of neuromuscular function
Gabrio Bassotti1, Vincenzo Villanacci
1Gastroenterology and Hepatology Section, Department of Clinical and Experimental Medicine, University of Perugia, Perugia, Italy. gabassot@tin.it
Colonic diverticulosis, common in Western nations, arises from multiple factors beyond aging. Abnormal neuromuscular function and altered visceral perception in the large bowel contribute to this condition.
Area of Science:
- Gastroenterology
- Colorectal Surgery
- Cell Biology
Background:
- Diverticular disease of the colon (diverticulosis) is prevalent in Western countries but its pathophysiology is not fully understood.
- Traditionally viewed as age-related, colonic diverticulosis likely results from a combination of factors leading to anatomical and functional abnormalities.
- Abnormal neuromuscular function, including altered myoelectrical and motor activity, and visceral perception are observed in patients with diverticulosis.
Purpose of the Study:
- To explore the multifactorial pathophysiology of colonic diverticulosis.
- To investigate the role of neuromuscular dysfunction and visceral hypersensitivity in diverticular disease.
- To examine the relationship between enteric innervation, neuropeptides, inflammation, and symptoms.
Main Methods:
- Review of existing literature on colonic diverticulosis pathophysiology.
- Analysis of studies reporting myoelectrical and motor function abnormalities.
- Examination of research on enteric innervation, including interstitial cells of Cajal and enteric glial cells.
- Investigation of mucosal neuropeptides and inflammation in diverticular disease.
Main Results:
- Abnormal neuromuscular function of the large bowel is a significant factor in diverticulosis.
- Derangements in enteric innervation, particularly interstitial cells of Cajal and enteric glial cells, are implicated.
- Mucosal inflammation may play a crucial role in developing visceral hypersensitivity and abdominal pain.
Conclusions:
- Colonic diverticulosis is a complex condition influenced by multiple interacting factors.
- Neuromuscular dysfunction and altered visceral perception are key contributors to diverticular disease.
- Mucosal inflammation is strongly linked to visceral hypersensitivity, explaining pain in some patients with diverticulosis.
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