Goat whey ameliorates intestinal inflammation on acetic acid-induced colitis in rats

Daline Fernandes de Souza Araújo, Gerlane Coelho Bernardo Guerra*, Raimundo Fernandes de Araújo Júnior, Aurigena Antunes de Araújo, Paloma Oliveira Antonino de Assis, Ariosvaldo Nunes de Medeiros, Yasmim Regis Formiga de Sousa, Maria Manuela Estevez Pintado, Julio Gálvez, Rita de Cássia Ramos do Egypto Queiroga

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

19 Citations (Scopus)

Abstract

Complementary or alternative medicine is of great interest for the treatment of inflammatory bowel disease, with the aim of ameliorating the side effects of the drugs commonly used or improving their efficacy. In this study, we evaluated the ability of goat whey to prevent intestinal inflammation in the experimental model of acetic acid-induced rats and compared it to sulfasalazine. Pretreatment with goat whey (1, 2, and 4 g/kg) and sulfasalazine (250 mg/kg) on colitic rats improved colonic inflammatory markers, including myeloperoxidase activity, leukotriene B4 levels, as well as the production of proinflammatory cytokines IL-1β and tumor necrosis factor-α. Furthermore, the administration of goat whey significantly reduced the colonic oxidative stress by reducing malondialdehyde levels and increased total glutathione content, a potent antioxidant peptide. The histological evaluation of the colonic specimens from colitic rats confirmed these beneficial effects, as goat whey preserved the colonic tissue, especially in those rats treated with the highest dose of goat whey or with sulfasalazine. The immunohistochemistry analysis of the colonic tissue evaluation also revealed a reduction in the expression of cyclooxygenase-2, inducible nitric oxide synthase, and matrix metalloproteinase-9, together with an increased expression of suppressor of cytokine signaling-1. These results suggest that goat whey exerted a preventive effect against the intestinal damage induced by acetic acid, showing a similar efficacy to that shown by sulfasalazine, therefore making it a potential treatment for human inflammatory bowel disease.

Original languageEnglish
Pages (from-to)9383-9394
Number of pages12
JournalJournal of Dairy Science
Volume99
Issue number12
DOIs
Publication statusPublished - 1 Dec 2016

Keywords

  • Cytokines
  • Goat whey
  • Immunohistochemical
  • Intestinal inflammation
  • Oxidative stress

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