Large Yellow Croaker Roe Protein Isolates/Gellan Gum Hydrogels Improve the Alleviating Effect of Curcumin on DSS-Induced Colitis
2025
Yi-Nan Du | Yi-Xu Wang | Jia-Nan Yan | Qian Zhang | Yu-Qiao Wang | Jiao Jia | Hai-Tao Wu
In this study, large yellow croaker (Pseudosciaena crocea) protein isolates/gellan gum (PG) binary hydrogels with dense microstructure were used for embedding and delivery curcumin (Cur). The colitis-relieving effects of PG-Cur were further investigated using the dextran sulfate sodium (DSS)-induced ulcerative colitis (UC) mouse model. Following PG-Cur treatment, weight loss, diarrhea, and shortening of the colon were significantly alleviated. Compared with the free Cur group, weight loss and colon length in the PG-Cur group increased about 1.05- and 1.12-fold. IL-1&beta:, IL-6, TNF-&alpha:, and IL-10 levels in PG-Cur group were not significantly different from those of the normal mice, and the MPO and iNOS activities of the PG-Cur group were 29% and 20% lower than those in the Cur group, respectively. Moreover, fecal microbiota analysis of mice revealed that PG-Cur effectively restored gut dysbiosis in DSS-induced colitis, enriching beneficial bacteria while reducing harmful ones. Overall, the PG hydrogels have the potential to serve as carriers for oral curcumin formulations aimed at alleviating UC.
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