지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2024.12
- 수록면
- 567 - 579 (13page)
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Purpose: Ulcerative colitis (UC) is a chronic inflammatory bowel disease characterized by inflammation arising in the colonic mucosa. Recently, the incidence of UC has been rapidly increasing due to Westernized lifestyles. If UC persists for a long time (more than 10 years), it is known to elevate the risk of colorectal cancer. In an earlier study, we reported that the mulberry twig (MT) water extract effectively alleviated colitis in mice. In this study, we isolated oxyresveratrol (OXY) from MT as a principal component and compared the anti- colitis efficacy of the MT water extract and OXY in a dextran sulfate sodium (DSS)-induced mouse colitis model.
Methods: Six-week-old male ICR mice were divided into four groups: control, DSS, DSS+MT, and DSS+OXY. All mice, except those in the control group, were administered 3% DSS in drinking water for 7 days. During the DSS feeding period, the mice in the DSS+MT and DSS+OXY groups were orally administered MT water extract (5 g/kg body weight [BW]) or OXY (300 mg/kg BW) once daily.
Results: OXY administration significantly suppressed the disease activity index, DSS-induced colonic pathophysiological changes, and the bromodeoxyuridine (BrdU) labeling index of colonic mucosal cells compared to the DSS and DSS+MT groups. The levels of plasma tumor necrosis factor (TNF)-α, interleukin (IL)-6, and nitric oxide (NO), as well as colonic cyclooxygenase-2 ( COX-2) and inducible nitric oxide synthase ( iNOS) gene expression and myeloperoxidase (MPO) activity, were significantly decreased in the OXY group compared to the DSS group.
Conclusion: These findings suggest that OXY effectively improves mouse colitis by suppressing the colonic inflammatory response and may serve as a potential adjuvant treatment for colitis.
Methods: Six-week-old male ICR mice were divided into four groups: control, DSS, DSS+MT, and DSS+OXY. All mice, except those in the control group, were administered 3% DSS in drinking water for 7 days. During the DSS feeding period, the mice in the DSS+MT and DSS+OXY groups were orally administered MT water extract (5 g/kg body weight [BW]) or OXY (300 mg/kg BW) once daily.
Results: OXY administration significantly suppressed the disease activity index, DSS-induced colonic pathophysiological changes, and the bromodeoxyuridine (BrdU) labeling index of colonic mucosal cells compared to the DSS and DSS+MT groups. The levels of plasma tumor necrosis factor (TNF)-α, interleukin (IL)-6, and nitric oxide (NO), as well as colonic cyclooxygenase-2 ( COX-2) and inducible nitric oxide synthase ( iNOS) gene expression and myeloperoxidase (MPO) activity, were significantly decreased in the OXY group compared to the DSS group.
Conclusion: These findings suggest that OXY effectively improves mouse colitis by suppressing the colonic inflammatory response and may serve as a potential adjuvant treatment for colitis.
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ABSTRACT
INTRODUCTION
METHODS
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DISCUSSION
SUMMARY
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