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Endotoxemia is mainly caused by a massive burst of inflammatory cytokines as a result of lipopolysaccharide (LPS) invasion. Chitooligosaccharides (COS) is expected to be a potential drug for relieving endotoxemia due to its anti-inflammatory properties. However, the structural parameters of COS are often ambiguous, and the effect of degree of acetylation (DA) of COS on its anti-inflammatory remains unknown. In this study, four COSs with different DAs (0%, 12%, 50% and 85%) and the same oligomers distribution were successfully obtained. Their structures were confirmed by H NMR and MS analysis. Then, the effect of DA on the anti-inflammatory activity and relieving endotoxemia potential of COS was researched. The results revealed that COS with a DA of 12% had better anti-inflammatory activity than COSs with other DAs, mainly in inhibiting LPS-induced inflammatory cytokines burst, down-regulating its mRNA expression and reducing phosphorylation of IκBα. Furthermore, this COS showed an obviously protective effect on endotoxemia mice, such as inhibiting the increase in inflammatory cytokines and transaminases, alleviating the injury of liver and intestinal tissue. This study explored the effect of DA on the anti-inflammatory activity of COS for the first time and lays the foundation for the development of COS as an anti-inflammatory drug against endotoxemia.
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http://dx.doi.org/10.3390/ijms23158205 | DOI Listing |
J Crohns Colitis
September 2025
Department of Gastroenterology, University Hospital of Marseille Nord, Assistance Publique-Hôpitaux de Marseille (AP-HM), Aix-Marseille University, Marseille, France.
Background And Aims: While this strategy is frequently used for other biologics, real-world evidence on subcutaneous (SC) vedolizumab (VDZ) dose intensification in inflammatory bowel disease (IBD) is lacking. This study aimed to assess the effectiveness and safety of SC VDZ intensification.
Methods: We conducted a retrospective study in 25 centers including all patients with active ulcerative colitis (UC) or Crohn's disease (CD) (defined by PRO2), and incomplete or loss of response to SC VDZ 108mg EOW when the drug was intensified.
Inflammopharmacology
September 2025
Centre for Research Impact & Outcome, Chitkara College of Pharmacy, Chitkara University, Rajpura, Punjab, 140401, India.
The NOD‑like receptor family pyrin domain containing 3 (NLRP3) inflammasome is a key molecular complex that amplifies inflammatory cascades by maturing interleukin‑1 beta (IL-1β) and interleukin‑18 (IL-18) and inducing pyroptosis. It serves as a major driver and co-driver of numerous diseases associated with chronic inflammation. Dysregulated NLRP3 activation contributes to the progression of disorders such as rheumatoid arthritis, inflammatory bowel disease, neurodegenerative diseases and atherosclerosis.
View Article and Find Full Text PDFFood Funct
September 2025
College of Food Science, Shenyang Agricultural University, Shenyang, Liaoning, China.
Blackcurrant is rich in polyphenolic substances with corresponding antioxidant and anti-inflammatory properties. Therefore, based on the identification of typical functional components of blackcurrant polyphenols (BCP), the present study investigated the therapeutic effects of BCP on alcoholic liver disease (ALD) by modulating fibroblast growth factor 21 (FGF21) in both an HepG2 cell model and an C57BL/6J mouse model of acute alcoholism. In total, 892 polyphenols and 45 anthocyanins were identified in blackcurrant.
View Article and Find Full Text PDFJ Agric Food Chem
September 2025
College of Food Science and Engineering, Northwest A&F University, Yangling 712100, China.
Dietary proteins have been demonstrated to alleviate ulcerative colitis. Phosvitin (PSV), a highly phosphorylated protein, possesses biological functions such as anti-inflammatory and antioxidant activities. This study aimed to investigate the preventive effects of PSV on dextran sulfate sodium (DSS)-induced colitis in mice and its underlying mechanisms.
View Article and Find Full Text PDFJ Mater Chem B
September 2025
Department of Chemistry, Indian Institute of Technology Ropar, Rupnagar, Punjab 140001, India.
The unregulated use and improper disposal of active pharmaceutical ingredients (APIs), particularly phenylbutazone (PBZ), are contaminating water resources and posing serious risks to the food chain. PBZ is a nonsteroidal anti-inflammatory drug (NSAID) commonly used for treating pain and fever in animals, and its persistence in the environment due to inadequate waste management has become a cause of concern. To address this, we report the fabrication of benzimidazole-based self-assembled nanomicelles (R2 NMs) for selective detection and removal of PBZ.
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