Abstract Title:

Anti-inflammatory effects of resveratrol, curcumin and simvastatin in acute small intestinal inflammation.

Abstract Source:

PLoS One. 2010;5(12):e15099. Epub 2010 Dec 3. PMID: 21151942

Abstract Author(s):

Stefan Bereswill, Melba Muñoz, André Fischer, Rita Plickert, Lea-Maxie Haag, Bettina Otto, Anja A Kühl, Christoph Loddenkemper, Ulf B Göbel, Markus M Heimesaat

Article Affiliation:

Institut für Mikrobiologie und Hygiene, Charité-Universitätsmedizin Berlin, Berlin, Germany.

Abstract:

BACKGROUND: The health beneficial effects of Resveratrol, Curcumin and Simvastatin have been demonstrated in various experimental models of inflammation. We investigated the potential anti-inflammatory and immunomodulatory mechanisms of the above mentioned compounds in a murine model of hyper-acute Th1-type ileitis following peroral infection with Toxoplasma gondii.

METHODOLOGY/PRINCIPAL FINDINGS: Here we show that after peroral administration of Resveratrol, Curcumin or Simvastatin, mice were protected from ileitis development and survived the acute phase of inflammation whereas all Placebo treated controls died. In particular, Resveratrol treatment resulted in longer-term survival. Resveratrol, Curcumin or Simvastatin treated animals displayed significantly increased numbers of regulatory T cells and augmented intestinal epithelial cell proliferation/regeneration in the ileum mucosa compared to placebo control animals. In contrast, mucosal T lymphocyte and neutrophilic granulocyte numbers in treated mice were reduced. In addition, levels of the anti-inflammatory cytokine IL-10 in ileum, mesenteric lymph nodes and spleen were increased whereas pro-inflammatory cytokine expression (IL-23p19, IFN-γ, TNF-α, IL-6, MCP-1) was found to be significantly lower in the ileum of treated animals as compared to Placebo controls. Furthermore, treated animals displayed not only fewer pro-inflammatory enterobacteria and enterococci but also higher anti-inflammatory lactobacilli and bifidobacteria loads.Most importantly, treatment with all three compounds preserved intestinal barrier functions as indicated by reduced bacterial translocation rates into spleen, liver, kidney and blood.

CONCLUSION/SIGNIFICANCE: Oral treatment with Resveratrol, Curcumin or Simvastatin ameliorates acute small intestinal inflammation by down-regulating Th1-type immune responses and prevents bacterial translocation by maintaining gut barrier function. These findings provide novel and potential prophylaxis and treatment options of patients with inflammatory bowel diseases.

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