The polysaccharide from Usnea longissima ach. ameliorates DSS-induced ulcerative colitis by restoring gut microbiota homeostasis and inhibiting the NF-κB/PI3K-Akt signaling pathways.
Usnea longissima Ach. has long been used in traditional medicine for inflammatory and infectious disorders, but its therapeutic potential and immunological mechanism in ulcerative colitis remain unclear. In this study, we investigated the protective effects of Usnea longissima Ach. Polysaccharide (USLP) against dextran...