RT Journal Article ID 1cb5fe9d1c31da44 A1 Gil-Ramirez, Alicia A1 Smiderle, Fhernanda R. A1 Morales, Diego A1 Govers, Coen A1 Synytsya, Andriy A1 Wichers, Harry J. A1 Iacomini, Marcello A1 Soler-Rivas, Cristina T1 Water-Soluble Polysaccharide Extracts from the Oyster Culinary-Medicinal Mushroom Pleurotus ostreatus (Agaricomycetes) with HMGCR Inhibitory Activity JF International Journal of Medicinal Mushrooms JO IJM YR 2017 FD 2017-11-29 VO 19 IS 10 SP 879 OP 892 K1 B-glucans K1 Caco2 K1 cholesterol K1 HMGCR K1 medicinal mushrooms K1 Pleurotus ostreatus K1 polysaccharides AB Water extracts from Pleurotus ostreatus containing no statins showed 3-hydroxy-3-methyl-glutaryl CoA reductase (HMGCR) inhibitory activity (in vitro) that might be due to specific water-soluble polysaccharides (WSPs); when isolated and deproteinized, increasing concentrations of the WSP extract induced higher inhibition. The WSP extract contained mainly β-glucans, mannogalactans, and glycogen (e.g., α-glucans), although derivatives or fragments with lower molecular weights (between 14 and 3.5 kDa) were present and were able to induce the inhibitory activity. The extract contained more β-(1→3)-glucans than β-(11→3),(11→6)-glucans, and they partially survived digestion and managed to pass through Caco2 cell monolayers to the lower compartment after in vitro digestion and transport experiments. The WSP might also modulate Caco2 membrane integrity. PB Begell House LK https://www.dl.begellhouse.com/journals/708ae68d64b17c52,305c54e9703680c8,1cb5fe9d1c31da44.html