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|Title: ||Nutraceuticals: a new therapeutic approach against|
|Authors: ||Santos, António Mário|
Vale de Gato, Inês
Guerreiro, António Sousa
|Keywords: ||Helicobacter pylori|
|Issue Date: ||7-Sep-2011|
|Publisher: ||Blackwell Publishing Lta|
|Citation: ||European Helicobacter Study Group: Abstracts of the XXIVth International Workshop on Helicobacter and related bacteria in chronic digestive inflammation and gastric cancer. Helicobacter 16 (Suppl. 1): 140. Epub 2011 Sep 7|
|Abstract: ||Background and Aim: H. pylori induces severe gastric chronic inflammation
and is the cause of gastritis, peptic ulcer and a major risk factor for gastric cancer.
The aim of the study was to investigate the anti-inflammatory effect of two
nutraceuticals in Hp-infected mucosa.
Materials and Methods: Eighteen C57BL/6 mice were inoculated with Hp SS1
by gavage three times with 3 · 109 viable cells. Mice were then treated with
either PBS, curcumin (10 mg/mouse) or Symbiotic 2000 (50 mg/mouse), three
times per week. Half of the infected and three non-infected mice were euthanized
at week 6, the remaining at week 18. Gastric samples were removed for immunohistochemistry
and PCR array (inflammatory response and immunity pathway)
analysis (Sabiosciences, Qiagen).
Results: All the 18 mice were Hp positive by immunohistochemistry. The production
of the chemokines CCL2, CCL5, CCL20, CCL25, CXCL1 and CXCL11 was
significantly up-regulated at both week 6 (range of fold-change 4.3–718) and
week 18 (range of fold-change 16–1192). Similarly, the expression of the proinflammatory
cytokines IL-1b, IL6, IL9, IL10, IL23, TNFa and INFc was significantly
augmented (range of fold-change 1338–8251). The treatment with either curcumin
or symbiotic drastically decreased the expression of all these mediators,
restoring their levels to those similar to the non-infected mice.
Conclusions: The present study confirmed that Hp infection induces a strong
inflammatory response. Curcumin and Symbiotic treatments exerted a significant
anti-inflammatory effect in Hp-infected mucosa.
The supplementation of diet with these nutraceuticals may be a novel clinical
approach against gastric inflammation induced by Hp infection.|
|Peer Reviewed: ||yes|
|Publisher version: ||http://onlinelibrary.wiley.com/doi/10.1111/j.1523-5378.2011.00886.x/pdf|
|Appears in Collections:||DDI - Posters/abstracts em congressos internacionais|
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