Purpose: To investigate the deposition of collagen in the colon wall of patients with sigmoid diverticulitis.
Methods: Samples of sigmoid tissue from 15 patients (disease group), seven men and eight women aged 37-77 years who underwent surgery for the treatment of diverticulitis, were selected. For the control group, specimens from five patients, three men and two women aged 19-58 years undergoing emergency surgery for sigmoid trauma were selected. These subjects had no associated diseases. The histological study of the surgical specimens was performed by staining with hematoxylin-eosin and picrosirius and using a histochemical method for collagen quantification.
Results: Collagen deposition in the colon wall in terms of area (F), glandular epithelium (E) and total area was significantly higher in the disease group compared to control (p=0.003, p=0.026 and p=0.010, respectively). The collagen volume fraction (F fraction) and muscle tissue (M fraction) were also significantly higher compared to control (p=0.044 and p=0.026, respectively). The muscle (M area) and volume fraction of glandular epithelium (E fraction) did not differ significantly between the two groups, (p=0.074 and p=1.000, respectively).
Conclusion: In this study, collagen deposition in the colon wall of the patients operated for sigmoid diverticulitis was higher compared to patients without the disease.
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http://dx.doi.org/10.1590/S0102-865020150100000010 | DOI Listing |
BMC Gastroenterol
January 2025
Student Research Committee, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran.
Background: Neutropenic enterocolitis is a serious gastrointestinal complication that can develop in patients undergoing chemotherapy or other immunosuppressive treatments. It is characterized by inflammation and necrosis of the bowel, and most commonly affects the cecum and ascending colon. Although individual case reports have described the features of NE, a comprehensive synthesis of all the published cases is required.
View Article and Find Full Text PDFInt J Infect Dis
January 2025
Victorian Infectious Diseases Service, Royal Melbourne Hospital, Melbourne, VIC, Australia; Department of Infectious Diseases and National Center for Infection, Peter MacCallum Cancer Centre, Melbourne, VIC, Australia; National Centre for Infections in Cancer, Peter MacCallum Cancer Centre, Melbourne, VIC, Australia; Sir Peter MacCallum Department of Oncology, The University of Melbourne, VIC, Australia.
Objectives: We aimed to describe the characteristics of Clostridioides difficile infection (CDI) in cancer patients, analysing risk factors for 90-day recurrence and attributable mortality.
Methods: Retrospective analysis on all CDI episodes from 2020 to 2022 in three Australian hospitals and one Spanish hospital. Logistic regression analyses were performed.
J Surg Educ
January 2025
Department of Surgery, Washington University School of Medicine, St. Louis, Missouri; John Cochran VA Medical Center, St. Louis, Missouri.
Objective: Identify changes in general surgery resident autonomy and resident postgraduate year (PGY) level in Entrustable Professional Activity (EPA) cases over time.
Design: Retrospective cohort study.
Setting: United States Veterans Affairs (VA) hospital system, 2004 to 2020.
Bioorg Med Chem Lett
January 2025
Department of Chemistry, Simon Fraser University Burnaby British Columbia Canada. Electronic address:
Prostaglandin E receptor type 4 (EP4) agonists have been shown to be effective in treating experimental ulcerative colitis (UC) in animals and in human clinical trials, but their development has been impeded by unacceptable systemic side effects. In this study, a series of methylene phosphate prodrugs of a highly potent and selective prostaglandin EP4 receptor agonist were designed to target and remain localized in the gastrointestinal (GI) tract after either oral or rectal instillation. The prodrugs were designed to be converted to liberate active EP4 agonist by intestinal alkaline phosphate (IAP), a ubiquitous enzyme found at the luminal of the intestinal wall thus exposing the colon epithelial barrier while reducing systemic exposure to the active agonist.
View Article and Find Full Text PDFClin J Gastroenterol
January 2025
Department of Gastroenterology and Hepatology, Tokyo Medical University Hospital, 6-7-1, Nishi-shinjuku, Shinjuku-ku, Tokyo, 160-0023, Japan.
We describe a case of familial Mediterranean fever (FMF) with sigmoid colon stricture. The patient, a woman in her 30 s, had a 12-year history of ileocolitis-type Crohn's disease. The colonoscope could not pass because of the sigmoid colon stricture, and the patient was referred to our hospital with complaints of abdominal pain and fever.
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