3-(R)-AMINO-2-(R)-HYDROXY-3-(4

CD44/CD44R分子

since it produces abundant hyaluronic acid, but not actually useful because CD44H is reactive in 1/3 to 1/2 of adenocarcinomas, Hum Path 2002;33:953   CD44r May be involved in leukocyte attachment and rolling on endothelial cells, homing

霉菌酸 mycolic acid

　　α -烷基β -羟基的高级支链脂肪酸。最初是由安得松（ R． J． Anderson， 1938）等从人型结核菌中分离出来的。根据分枝杆菌的种类不同，而有碳数和基团不同的许多种霉菌酸，在诺卡氏菌（ Nocard-ia）、棒状杆菌的菌体中也有发现。霉菌酸可分为三种类型。（ 1）胆碱型霉菌酸： R＝ CH3 （ CH2 ） 14 ， R9 =C14 H2 9 ；胆碱型霉菌烯酸： R=CH3 （ CH2 ） 5 CH=CH（ CH2 ） 7 ， R′ =C14

In Vitro Production of Gymnemic Acid from Gymnema sylvestre (Retz) R. Br. Ex Roemer and Schultes Through Callus Culture Under Abiotic Stress Condition

conditions. Gymnemic acid (C43 H68 O14 ), a pentacyclic triterpenoid isolated from the leaves of Gymnema sylvestre, exhibits potent inhibitory effect on diabetes. The gymnemic acid content is determined by chromatographic methods: Camag