A protein tyrosine phosphatase 1B activity inhibitor from the fruiting bodies of Ganoderma lucidum (Fr.) Karst and its hypoglycemic potency on streptozotocin-induced type 2 diabetic mice - Teng, B S; Wang, C D; Yang, H J; Wu, J S; Zhang, D; Zheng, M; Fan, Z F; Pan, D; Zhou, P (J Agric Food Chem, 2011)