ArticleActa cirurgica brasileira2025
Enemas with sucralfate and n-acetylcysteine can reduce inflammation and oxidative stress in colonic mucosa without fecal stream.
Article in Acta cirurgica brasileira, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
purposeTo evaluate whether enemas containing sucralfate (SCF) alone or in combination with n-acetylcysteine (NAC) reduces inflammation and oxidative stress (OS) in the colonic mucosa without fecal stream.
methodsForty-eight rats were subjected to left colostomy and distal rectal mucous fistula. During the procedure, 2 cm of the colon was collected to constitute the sham group. Twelve weeks after the surgical procedure, the animals were divided into two groups (n = 24) and received daily enemas containing saline, SCF (2 g/kg), NAC (100 mg/kg), or SCF + NAC (2 g/kg + 100 mg/kg, respectively) for two or four weeks. At the end of the intervention period, the animals were euthanized, and colonic segments without fecal stream were removed for histological and biochemical analyses. The diagnosis of colitis was made by histological analysis, and the inflammatory score was assessed using a validated scale. The neutrophilic infiltrate was evaluated by quantifying the content of myeloperoxidase (MPO) in the tissue. OS was determined by evaluating the activity of colonic antioxidant systems (superoxide dismutase, catalase, and reduced glutathione) and malondialdehyde (MDA) levels. The differences among subgroups were analyzed with the Mann-Whitney's test, whereas changes over time were analyzed via the Kruskal-Wallis' test, with the significance level of 5% (p < 0.05).
resultsEnemas with SCF and NAC alone or in combination reduced colonic inflammation and the tissue levels of MPO and MDA and increased the levels of antioxidant enzymes.
conclusionSCF and NAC enemas alone or in combination reduced inflammation activity and OS in colon segments without fecal stream.
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