由于各种4-烷基儿茶酚在体外和体内均能刺激神经生长因子(NGF)的生物合成,将这些药物输送到大脑可能对治疗像阿尔茨海默病这样的神经退行性疾病有益。
制备了几种4-甲基儿茶酚(4-甲基儿茶酚)的二氢吡啶-吡啶盐型氧化还原化学输送系统(CDS),作为潜在的大脑选择性靶向形式。经过在各种缓冲溶液和生物介质中进行体外稳定性研究的初步评估后,选择的CDS在大鼠中进一步研究其体内分布。成功实现了对感兴趣化合物的选择性和持续输送到大鼠脑部。此外,通过点杂交和分析,在外周给予所选CDS后,评估了大鼠脑中NGF刺激活性,通过测量大鼠海马和额叶皮层中前前NGF mRNA的水平。
结果显示,与对照相比,CDS的外周给药可使大鼠海马中的NGF mRNA增加1.7倍,额叶皮层中增加约1.4倍。
Since various 4-alkylcatechols stimulate nerve growth factor (NGF) biosynthesis both in-vitro and in-vivo, delivery of these agents to the brain may provide beneficial effect for the treatment of neurodegenerative diseases such as Alzheimer's.
Several dihydropyridine-pyridinium salt type redox chemical delivery systems (CDS) of 4-methylcatechol (4-methylcatechol) were prepared as potential brain selective targetry forms for 4-methylcatechol. After preliminary evaluation by in-vitro stability studies in various buffer solutions and biological media, a selected CDS was further investigated in the rat to determine its in-vivo distribution. Selective and sustained delivery of the compound of interest to the rat brain was achieved. Furthermore, the NGF stimulatory activity in the rat brain after peripheral administration of the selected CDS was evaluated by measuring the levels of pre-pro-NGF mRNA in the rat hippocampus and frontal cortex, by dot blot hybridization and analysis.
Results showed the peripheral administration of the CDS to achieve a 1.7-fold increase in NGF mRNA compared to control in the rat hippocampus, and an approximately 1.4-fold increase in the frontal cortex.
由于各种4-烷基儿茶酚在体外和体内均能刺激神经生长因子(NGF)的生物合成,将这些药物输送到大脑可能对治疗像阿尔茨海默病这样的神经退行性疾病有益。
制备了几种4-甲基儿茶酚(4-甲基儿茶酚)的二氢吡啶-吡啶盐型氧化还原化学输送系统(CDS),作为潜在的大脑选择性靶向形式。经过在各种缓冲溶液和生物介质中进行体外稳定性研究的初步评估后,选择的CDS在大鼠中进一步研究其体内分布。成功实现了对感兴趣化合物的选择性和持续输送到大鼠脑部。此外,通过点杂交和分析,在外周给予所选CDS后,评估了大鼠脑中NGF刺激活性,通过测量大鼠海马和额叶皮层中前前NGF mRNA的水平。
结果显示,与对照相比,CDS的外周给药可使大鼠海马中的NGF mRNA增加1.7倍,额叶皮层中增加约1.4倍。