Favourable effects of whey protein on acetic acid-induced ulcerative colitis in a rat model

Autor: Nurettin Tunc, Abdurahman Sahin, Ulvi Demirel, Gokhan Artas, Kazım Sahin, İbrahim Halil Bahcecioglu, Mehmet Yalniz
Jazyk: angličtina
Rok vydání: 2021
Předmět:
Zdroj: Archives of Medical Science, Vol 18, Iss 6, Pp 1617-1625 (2021)
Druh dokumentu: article
ISSN: 1734-1922
1896-9151
DOI: 10.5114/aoms/105839
Popis: Introduction In the present study, we aimed to examine the effects of the administration of whey protein through rectal enema to rats with acetic acid-induced ulcerative colitis on the pathways of nuclear-related factor-2 (Nrf-2), haem oxygenase-1 (HO-1), nuclear factor κB (NF-κB), active protein kinase-1 (AP-1), tumour necrotising factor-α (TNF-α), and cyclooxygenase-2 (COX-2), IL-6, IL-10. Material and methods Twenty-eight rats were employed for the trial. Ulcerative colitis was induced through the use of acetic acid. The therapeutic doses of whey protein were administered rectally. Ulcerative colitis was subjected to histopathological examination and protein levels in colon tissue were measured with the Western blot method. Results The significant increases observed in the levels of AP-1, COX-2, IL-6, IL-10, NF-κB, and TNF-α as markers of inflammation following the development of ulcerative colitis showed remarkable decreases along with the administration of whey protein (p < 0.05). On the other hand, we identified a decrease in the Nrf2-ARE signal pathway and HO-1 protein having protective roles in the colon inflammatory response along with the development of ulcerative colitis and activation of the Nrf2-HO-1 pathway by the whey protein. Conclusions Whey protein modulates Nrf2/HO-1 and NF-kB pathways, thereby creating a therapeutic effect against colonic inflammation induced by acetic acid (AA) by reason of its anti-inflammatory implications.
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