摘要
目的探讨阿米替林聚氰基丙烯酸正丁酯纳米粒在大鼠体内的药动学和组织分布学,评估其脑靶向性。方法40只SD大鼠按照随机数字表法分为两组,分别静脉注射阿米替林及阿米替林聚氰基丙烯酸正丁酯纳米粒,应用高效液相色谱测血液及组织中不同时间点阿米替林浓度并进行统计分析。结果纳米粒组中阿米替林在大鼠体内的半衰期、平均驻留时间、血药浓度时间曲线下面积分别是普通组的1.43、1.44、1.19倍;在大鼠靶向性评价中,脑组织相对摄取率为4.66;阿米替林组脑靶向效率均<1,提示脑组织分布最低;而阿米替林聚氰基丙烯酸正丁酯纳米粒组脑靶向效率均>1,提示脑组织分布最多。结论阿米替林聚氰基丙烯酸正丁酯纳米粒药动学参数改变明显,具有明显的脑靶向性。
Objective To investigate the pharmacokinetics and tissue distribution of amitriptiline polybutylcyanoacrylate nanoparticles(AMI-PBCA-NP)in rats and evaluate their brain targeting.Methods A total of 40 SD rats were divided into two groups according to the random number table method.AMI-PBCA-NP was injected intravenously.High Performance Liquid Chromatography(HPLC)was used to measure the concentration of amitriptyline in blood and tissues at different time points and perform statistical analysis.[WTHZ]Results The half-life(t_(1/2)),average residence time(MRT_(0-t))and area under the blood concentration time curve(AUC_(0-t))of AMI in the nanoparticles group were 1.43,1.44 and 1.19 times higher than those in the normal group,respectively.In the targeted evaluation of rat brain tissue,the relative uptake rate(Re)was 4.66.In the targeting efficiency(Te),all of the AMI group were less than 1,indicating the lowest brain distribution,while all of the AMI-PBCA-NP group were greater than 1,indicating the largest brain distribution.Conclusions The pharmacokinetic parameters of AMI-PBCA-NP have changed significantly,and they have obvious brain targeting.
作者
王旭生
王爱芹
朱欣茹
张朝辉
宋景贵
张萍
Wang Xusheng;Wang Aiqin;Zhu Xinru;Zhang Zhaohui;Song Jinggui;Zhang Ping(First author's address Second Affiliated Hospital of Xinxiang Medical University,Xinxiang 453002,Henan,China)
出处
《临床心身疾病杂志》
CAS
2021年第1期1-5,17,共6页
Journal of Clinical Psychosomatic Diseases
基金
河南省高等学校重点科研计划项目(编号18A320033)
河南省精神心理疾病临床医学研究中心开放课题(编号2020-zxkfkt-008)
河南省高等学校重点科研计划项目(编号18B310021)。
