flavonoids
Flavonoids are a class of polyphenolic secondary metabolites produced by plants that serve a wide range of biological roles. In plant science, they are of particular interest for their functions in attracting pollinators, providing antioxidant defense against UV radiation, protecting against pathogens and environmental stressors, and regulating cell growth. Understanding flavonoid biosynthesis and accumulation helps researchers unlock the mechanisms behind plant resilience, reproduction, and adaptation.
open_in_new WikipediaPubMed · 2026-04-29
Astragalin, a flavonoid found naturally in plants like milkvetch and moringa, was shown to reduce gut inflammation in mice by binding and dismantling a key immune protein (FPR1), while simultaneously restoring beneficial gut bacteria and protective metabolites — suggesting it could become a plant-derived multi-target therapy for inflammatory bowel disease.
A deep-learning platform identified FPR1 as astragalin's primary molecular target; astragalin directly binds FPR1 and accelerates its destruction via the cell's protein-recycling machinery, blocking NF-κB inflammatory signaling
Astragalin treatment significantly enriched the beneficial gut bacterium Akkermansia muciniphila and reversed colitis-associated disruptions in glutathione and L-ascorbate (vitamin C) metabolism
In a mouse colitis model, astragalin reduced pro-inflammatory cytokines, improved intestinal barrier integrity, and ameliorated visible disease symptoms
