.gamma.-Aminobutyric acid esters. 2. Synthesis, brain uptake, and pharmacological properties of lipid esters of .gamma.-aminobutyric acid
作者:James N. Jacob、Victor E. Shashoua、Alexander Campbell、Ross J. Baldessarini
DOI:10.1021/jm00379a019
日期:1985.1
than that of free GABA. The results indicate that there is little or no blood-brain barrier for the GABA ester molecules at doses up to 0.36 mmol/kg. Both ester compounds, but neither free GABA nor the lipid components delivered systemically, demonstrated central nervous system depressant properties by inhibiting the general motor activity of mice. Brain tissue has esterase activity which can release
合成了两种由U-14C标记和未标记的γ-氨基丁酸(GABA)制成的脂质酯,以测试类似于脂质双层膜正常成分的天然脂质类似物可以穿透血脑屏障并将外源GABA转运至大脑。1-亚油酰基-2,3-双(4-氨基丁酰基)丙烷-1,2,3-三醇和1,2-二亚油酰基-3-(4-氨基丁酰基)丙烷-1,2,3-三醇的吸收相对于肝脏,小鼠大脑的自由度分别比游离GABA高75倍和127倍。结果表明,剂量高达0.36 mmol / kg时,GABA酯分子几乎没有血脑屏障。既有酯化合物,也没有游离GABA或脂质成分,都是系统性递送的 通过抑制小鼠的一般运动活动,证明具有中枢神经系统抑制作用。脑组织具有酯酶活性,可以从这些化合物释放GABA。这表明这些化合物作为“前药”在中枢神经系统中释放GABA。