芳维甲酸乙酯在Beagle犬体内的药动学研究
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篇名: 芳维甲酸乙酯在Beagle犬体内的药动学研究
TITLE:
摘要: 目的:研究芳维甲酸乙酯(RO)在Beagle犬体内的药动学特征。方法:18只Beagle犬随机分为高、中、低剂量组(40、20、10 mg/kg),每组6只,ig相应剂量的RO。给药后0.5、1.0、2.0、3.0、4.0、6.0、8.0、12.0、24.0、36.0、48.0、60.0、72.0 h时于小隐静脉采血1 mL,分离血浆,采用反相高效液相色谱法同时测定血浆中RO及其代谢产物芳维甲酸乙酸(RA)的浓度;采用DAS 2.0软件进行拟合,计算药动学参数。结果:RO和RA在犬体内均呈一室模型分布。RO高、中、低剂量组犬体内的cmax分别为(1.42±0.87)、(0.54±0.09)、(0.31±0.05) μg/mL,t1/2z分别为(1.20±0.33)、(1.14±0.45)、(1.90±0.65) h,AUC0-72 h分别为(3.55±0.90)、(0.87±0.50)、(0.92±0.31) μg·h/mL,CL/F分别为(11.99±4.01)、(19.87±10.79)、(12.29±7.57) L/(kg·h);RA高、中、低剂量组犬体内的cmax分别为(32.51±4.04)、(19.87±2.78)、(16.55±4.06) μg/mL,t1/2z分别为(7.27±4.20)、(7.17±4.20)、(10.18±4.01) h,AUC0-72 h分别为(408.14±96.61)、(333.39±61.28)、(286.55±30.96) μg·h/mL,CL/F分别为(1.30±0.53)、(0.76±0.87)、(0.54±0.10) L/(kg·h)。结论:RO口服极易吸收,且消除迅速,其活性代谢产物RA在体内蓄积时间较长。
ABSTRACT: OBJECTIVE: To study the pharmacokinetic characteristics of arotinoid ethyl ester (RO) in Beagle dogs in vivo. METHODS: 18 Beagle dogs were randomly divided into high-dose, medium-dose, low-dose groups (40, 20, 10 mg/kg), 6 in each group. Rats were intragastrically administrated related doses of RO. Blood sample 1 mL was taken after 0.5, 1.0, 2.0, 4.0, 6.0, 8.0, 12.0, 24.0, 36.0, 48.0, 60.0, 72.0 h of administration, and plasma was separated. RP-HPLC was used to determine the concentrations of RO and its metabolite arotinoid acetic acid (RA) in plasma. Using DAS 2.0 software for fitting, pharmacokinetic parameters were calculated. RESULTS: Both RO and RA showed a distribution in one-compartment model in dogs in vivo. The cmax of RO high-dose, medium-dose, low-dose groups in dogs in vivo were (0.42±0.87), (0.54±0.09), (0.31±0.05) μg/mL; t1/2z were (1.20±0.33), (1.14±0.45), (1.90±0.65) h; AUC0-72 h were (3.55±0.90), (0.87±0.50), (0.92±0.31) μg·h/mL; and CL/F were (11.99±4.01), (19.87±10.79), (12.29±7.57) L/(kg·h). The cmax of RA high-dose, medium-dose, low-dose groups in dogs in vivo were (32.51±4.04), (19.87±2.78), (16.55±4.06) μg/mL; t1/2z were (7.27±4.20), (7.17±4.20), (10.18±4.01) h; AUC0-72 h were (408.14±96.61), (333.39±61.28), (286.55±30.96) μg·h/mL; and CL/F were (1.30±0.53)、(0.76±0.87)、(0.54±0.10) L/(kg·h). CONCLUSIONS: Orally taking RO is easy to absorb with rapid elimination. Its active metabolite RA has longer accumulation time in vivo.
期刊: 2017年第28卷第25期
作者: 杨辉,周远大,何海霞,孙纪红
AUTHORS: YANG Hui,ZHOU Yuanda,HE Haixia,SUN Jihong
关键字: 芳维甲酸乙酯;芳维甲酸乙酸;药动学;Beagle犬;反相高效液相色谱法
KEYWORDS: Arotinoid ethylester; Arotinoid acetic acid; Pharmacokinetics; Beagle dog; RP-HPLC
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