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Effects of N-acetylcysteine on the inflammatory response and bacterial translocation in a model of intestinal obstruction and ischemia in rats

PURPOSE: To evaluate effect of N-acetylcysteine (NAC) associated with Ringer lactate or hypertonic saline in inflammation and bacterial translocation on experimental intestinal obstruction (IO). METHODS: Wistar rats was subjected to IO. Six or 24 hours after, rats were subjected to enterectomy and f...

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Detalles Bibliográficos
Autores principales: da Costa, Rafael Izar Domingues, Fischer, Joao Marcos da Silva, Rasslan, Roberto, Koike, Marcia Kiyomi, Utiyama, Edvaldo Massazo, Montero, Edna Frasson de Souza
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Sociedade Brasileira para o Desenvolvimento da Pesquisa em Cirurgia 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9839184/
https://www.ncbi.nlm.nih.gov/pubmed/36651429
http://dx.doi.org/10.1590/acb371204
Descripción
Sumario:PURPOSE: To evaluate effect of N-acetylcysteine (NAC) associated with Ringer lactate or hypertonic saline in inflammation and bacterial translocation on experimental intestinal obstruction (IO). METHODS: Wistar rats was subjected to IO. Six or 24 hours after, rats were subjected to enterectomy and fluid resuscitation: IO, RL (subjected to the same procedures but with fluid resuscitation using Ringer’s lactate solution); RLNAC (added NAC to Ringer’s solution); and HSNAC (surgical procedure + fluid reposition with 7.5% hypertonic saline and NAC). After 24 h, tissues were collected to cytokines, bacterial translocation, and histological assessments. RESULTS: In kidney, interleukin-1beta (IL-1beta) was lower in the groups with fluid resuscitation compared to IO group. The RLNAC showed lower levels compared to the RL. Interleukin-6 (IL-6), interleukin-10 (IL-10), tumor necrosis factor-alpha (TNF-alpha), and (IFN-gamma) were lower in the treatment groups than in IO. In lung, IL-1beta and IL-6 were lower in RLNAC compared to IO. IL-10 was lower in RL, RLNAC and HSNAC compared to IO. TNF-alpha was higher in HSNAC compared to both RL and RLNAC. Bacterial translocation was observed in all animals of IO group. In kidneys, inflammation and congestion degrees were lower in HSNAC compared to RL. In lungs, inflammation levels were higher in RLNAC compared with the sham group. CONCLUSIONS: The data indicates that NAC associated with RL can promote a decrease in the inflammatory process in the kidneys and lungs in rats, following intestinal obstruction and ischemia in rats.