Massarigenin C is a fungal metabolite that has been found inM. flavoroseaand has enzyme inhibitory activities.1,2Massarigenin C inhibits neuraminidasein vitro(IC50= 4.15 μM).2It is also an inhibitor of yeast α-glucosidase (IC50= 1.25 mM).1It reduces the postprandial peak in blood glucose levels in an oral sucrose tolerance test in normo- and hyperglycemic mice when administered at doses of 3.2, 10, and 31.6 mg kg.
Borapetoside E has anti-hyperglycemic activity, it can significantly reduce serum glucose levels at dose-dependent manners in alloxan-induced hyperglycemic mice and db db type 2 diabetic mice.
5-O-Coumaroylquinic acid (3-O-Coumaroylquinic acid), exhibits significant inhibition of PTP1B and a concentration-dependent inhibitory effect on α-glucosidase, thereby demonstrating anti-hyperglycemic properties. Additionally, this compound enhances glucose uptake and inhibits PTP1B in vitro, emphasizing its potential therapeutic applications in glucose regulation.