哺乳动物中枢神经系统中 D 构象丝氨酸的区域性高浓度分布与N 甲基 D 天冬氨酸 (NMDA)受体相一致 .它主要由丝氨酸消旋酶将 L 丝氨酸直接消旋而来 ,也可能通过肠道菌群产生后吸收至体内 ,最终被 D 构象氨基酸氧化酶氧化 .这种从胶质细...哺乳动物中枢神经系统中 D 构象丝氨酸的区域性高浓度分布与N 甲基 D 天冬氨酸 (NMDA)受体相一致 .它主要由丝氨酸消旋酶将 L 丝氨酸直接消旋而来 ,也可能通过肠道菌群产生后吸收至体内 ,最终被 D 构象氨基酸氧化酶氧化 .这种从胶质细胞而非神经元来源的“异常”构象氨基酸作为一种新型神经递质 ,不仅更新了传统“神经递质”的定义 。展开更多
Apolipoprotein A Ⅰ, the major protein component of the HDL, exerts its important function during modulating the metabolism of lipids in the plasma. Animal experiments have established that high concentration of the a...Apolipoprotein A Ⅰ, the major protein component of the HDL, exerts its important function during modulating the metabolism of lipids in the plasma. Animal experiments have established that high concentration of the apo A Ⅰ not only inhibits the initiation and progression of atherosclerosis, but also makes the preexisting atherosclerotic lesions regress. The most accepted mechanism is reverse cholesterol transport(RCT). It may become a new non traumatic therapy that the atherosclerosis is prevented and treated by the purified or recombinant human apolipoprotein A Ⅰ.展开更多
文摘哺乳动物中枢神经系统中 D 构象丝氨酸的区域性高浓度分布与N 甲基 D 天冬氨酸 (NMDA)受体相一致 .它主要由丝氨酸消旋酶将 L 丝氨酸直接消旋而来 ,也可能通过肠道菌群产生后吸收至体内 ,最终被 D 构象氨基酸氧化酶氧化 .这种从胶质细胞而非神经元来源的“异常”构象氨基酸作为一种新型神经递质 ,不仅更新了传统“神经递质”的定义 。
文摘Apolipoprotein A Ⅰ, the major protein component of the HDL, exerts its important function during modulating the metabolism of lipids in the plasma. Animal experiments have established that high concentration of the apo A Ⅰ not only inhibits the initiation and progression of atherosclerosis, but also makes the preexisting atherosclerotic lesions regress. The most accepted mechanism is reverse cholesterol transport(RCT). It may become a new non traumatic therapy that the atherosclerosis is prevented and treated by the purified or recombinant human apolipoprotein A Ⅰ.