Antidiabetic activity of the rhizoma of Anemarrhena asphodeloides and active components, mangiferin and its glucoside - Miura, T; Ichiki, H; Iwamoto, N; Kato, M; Kubo, M; Sasaki, H; Okada, M; Ishida, T; Seino, Y; Tanigawa, K (Biol Pharm Bull, 2001)