摘要
目的 初步探讨四硫化四砷（As4S4）的动物药动学规律.方法 原子分光光度法测定As4S4小鼠单次灌胃后血砷浓度以及组织、排泄物中总砷含量.以3P97软件进行药动学参数估算.结果 小鼠单次灌胃As4S4的药-时变化符合一房室模型,吸收不完全,消除较慢,其消除半衰期9～12 h.口服给药后砷在小鼠体内分布广泛,主要分布在体脂、毛、皮、肝、肾、脾和子宫.砷主要从粪、尿排泄.结论 小鼠灌胃As4S4血中和组织中能达到一定浓度,但是吸收有限,因而相对较为安全.消除半衰期较长,值得注意.
OBJECTIVE To investigate the pharmacokinetie behavior after an intragastrie （ig） administration of asingle dose of tetra-arsenic tetra-sulfide （As4S4） in mice.METHODS Atomic absorption spectrometry was used to determine the total concentration of arsenic in bio samples, including blood, tissue and excreta. RESULTS The concentration-time curves of As4S4 in blood after an ig of 3 different dosages in mice were discfibed by an one-compartment model with the 1^st order absorption calculated by the program 3P97. The absorption of As4S4 was insufficient. It was eliminated slowly, with the half-life of about 9 ~ 12 h. Arsenic was widely distributed in many tissues, mainly in body fat, hair, skin, liver, kidney, spleen and uterus. It was mainly excreted in feces and mine.CONCLUSION Arsenic is detected in the blood and many tissues of mice after a single dose of As4S4. However, its absorption is insufficient, so that it is relative safe for ig administration. It is important that t1/2（ke） is long.
出处
《中国药学杂志》
CAS
CSCD
北大核心
2006年第8期619-623,共5页
Chinese Pharmaceutical Journal
关键词
四硫化四砷
药动学
原子吸收分光光度法
tetra-arsenic tetra-sulfide
pharmacokinetics
atomic absorption spectrometry
