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Objective: To investigate the anti-ulcerative colitis mechanism of resveratrol through regulation of Wnt/β-catenin signaling pathway.
Methods: ①The experiment of ulcerative colitis induced by dextran sulfate sodium salt (DSS): 28 C57BL/6 mice were randomly divided into four groups including control group(n=7), DSS group(n=7), DSS+Resveratrol (DSS+Res) group(n=7) and Res group(n=7). The experiment lasted for 3 weeks. Ulcerative colitis of mice was induced by drinking DSS water and treated with resveratrol by intragastric administration. The mice were weighed daily and their activities and state of feces were recorded. After that, the mice were euthanized, the spleens were weighed, and the colonic length was measured.Hematoxylin-eosin staining (HE) was used to observe the pathological changes of the colon, and the expression of miR-31 in colonic tissue was detected by quantitative real-time PCR (qPCR). The expressions of β-catenin and Cyclin D1 were measured by Western blot. ②In vitro experiment: HCT 116 cells were treated with resveratrol at 10 mg/ml, the expressions of β-catenin, LDL receptor related protein-6 (LRP-6), frizzled-3 (FZD3) and c-Myc were detected. The expression of β-catenin was also detected in HCT 116 cells transfected with miRNA-31 mimic and miRNA-31 inhibitor.
Results: ① The body weight was decreased in DSS group, the activity was decreased and blood stool appeared. The colonic length of mice was shortened, the spleen was enlarged and the tissue was damaged seriously in DSS group. While the above symptoms were improved after resveratrol treatment. ② Resveratrol inhibited the expressions of miRNA-31, β-catenin and CyclinD1 in ulcerative colitis mice, and also down-regulated the expressions of β-catenin, LRP-6, FZD3 and c-Myc in HCT 116 cells. After transfection of miRNA-31 inhibitor, the expression of β-catenin was decreased in HCT 116 cells.
Conclusion: Resveratrol suppresses DSS induced colitis by down-regulation of Wnt signal pathway. The down-regulation of Wnt signal may be related to miRNA-31.
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http://dx.doi.org/10.12047/j.cjap.5826.2019.097 | DOI Listing |
Turk J Pediatr
September 2025
Department of Pathology, University of Health Sciences Antalya Education and Research Hospital, Antalya, Türkiye.
Background: Delirium in patients with ulcerative colitis may be seen, especially in the elderly and in patients hospitalized for a long time. In children, Wernicke's encephalopathy may occur due to thiamine deficiency in both ulcerative colitis and Crohn's disease. We present a patient with ulcerative colitis who presented with delirium as the first symptom, did not respond to steroid treatment and improved with anti-tumor necrosis factor-alpha treatment.
View Article and Find Full Text PDFAm J Physiol Regul Integr Comp Physiol
September 2025
Laboratory of Anesthesia and Critical Care Medicine, National-Local Joint Engineering Research Centre of Translational Medicine of Anesthesiology, West China Hospital, Sichuan University, Chengdu, Sichuan, China.
Ulcerative colitis (UC) is a serious inflammatory bowel disease with a significantly increasing incidence globally. Current treatment options often exhibit unstable efficacy and notable side effects, making the exploration of alternative therapies particularly important. Peucedanum praeruptorum Dunn, a traditional Chinese medicine, contains various bioactive compounds, among which praeruptorin A (PA) has garnered attention for its anti-inflammatory potential.
View Article and Find Full Text PDFActa Biochim Biophys Sin (Shanghai)
September 2025
State Key Laboratory of Analytical Chemistry for Life Sciences, School of Life Sciences, Nanjing University, Nanjing 210023, China.
Dysregulated transcription factors critically link chronic inflammation to oncogenesis in colitis-associated colorectal cancer (CAC), but their mechanistic roles remain incompletely understood. By integrating microarray and transcriptome sequencing data from ulcerative colitis (UC), colitis-associated cancer (CAC), and colorectal cancer (CRC) patients, we identify C/EBPβ as a key transcriptional regulator whose elevated expression inversely correlates with survival. In azoxymethane (AOM)/dextran sulfate sodium (DSS)-induced CAC models, intestinal epithelial C/EBPβ is upregulated during tumor progression, which is correlated with exacerbated tumor burden and neutrophil infiltration.
View Article and Find Full Text PDFAliment Pharmacol Ther
September 2025
National Institute for Health Research Nottingham Digestive Diseases Biomedical Research Centre, Nottingham University Hospitals, Nottingham, UK.
J Cell Mol Med
September 2025
Department of Obstetrics and Gynecology, Second Hospital of Shanxi Medical University, Taiyuan, Shanxi, China.
This study aims to assess whether endometriosis causally increases the risk of IBD through Mendelian randomisation (MR) analysis and to elucidate potential mechanisms using in vitro experiments. A two-sample Mendelian randomisation (MR) analysis was conducted using genome-wide association study datasets for endometriosis and IBD, including ulcerative colitis and Crohn's disease. Causal inference was assessed using inverse variance weighting, MR-Egger, and weighted median methods, with MR-PRESSO used to detect horizontal pleiotropy.
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