高等学校化学学报 ›› 2011, Vol. 32 ›› Issue (6): 1412.

• 研究论文 • 上一篇    下一篇

131I标记海藻酸钠包裹明胶微球的制备及性能评价

骆东辉1,刘安妮1,李明芳1,马宇2,李林2,陈晓理2,刘黎1,夏传琴1   

  1. 1. 四川大学化学学院, 成都  610064; 
    2. 四川大学华西医院, 成都 610041
  • 收稿日期:2010-07-09 修回日期:2010-11-02 出版日期:2011-06-10 发布日期:2011-05-10
  • 通讯作者: 夏传琴 E-mail:xiachqin@163.com
  • 基金资助:

    四川省科技支撑计划项目(批准号:   2009SZ0184)资助.

Preparation and Bio\|Evaluation of Iodine Labelling Gelatin Microspheres and the Coating Microspheres with Sodium Alginate

LUO Dong-Hui1, LIU An-Ni1, LI Ming-Fang1, MA Yu2, LI Lin2, CHEN Xiao-Li2, LIU Li1, XIA Chuan-Qin1*   

  1. 1. College of Chemistry, Sichuan University, Chengdu  610064, China;
    2. West China Hospital, Sichuan University, Chengdu   610041, China
  • Received:2010-07-09 Revised:2010-11-02 Online:2011-06-10 Published:2011-05-10
  • Contact: XIA Chuan-Qin E-mail:xiachqin@163.com
  • Supported by:

    四川省科技支撑计划项目(批准号:   2009SZ0184)资助.

摘要: 文中描述了明胶微球和海藻酸钠(SA)包裹微球的制备方法并通过试验比较明胶微球和包裹明胶微球的各种特性,最后用氯胺T法将碘-131标记在微球上。结果表明, 包裹明胶微球对碘有更好的负载量和稳定性;在相同条件下,包裹微球的降解时间比明胶微球的降解时间长;标记后的明胶微球通过直接注射介入到新西兰大白兔的肝脏,使用发射单光子计算机断层扫描仪 (ECT)显像表明,在大白兔体内包裹明胶微球标记的131I比明胶微球更稳定。

关键词: 明胶微球, 131-I, 碘负载量, 海藻酸钠, 稳定性

Abstract: This paper describes a method to prepare the gelatin microspheres and the wrapped microspheres with sodium alginate(SA). The microspheres were labeled with iodine-131,125 by Chloramine-T method and followed by injecting into the liver of rabbits. The characteristic comparisons of the gelatin microspheres and the wrapped microspheres were made and the results indicated that the wrapped microspheres can have a more iodine loading capacity and better stability than the gelatin microspheres. It also appeared that the degradation rate of wrapped microspheres is slower than the gelatin microspheres in physical condition. As a matter of fact the stability of iodine-131 in gelatin microspheres in the rabbits was evidenced by the ECT visualization: no visible radio-speck at the position of thyroid gland has been observed by injecting the wrapped microspheres, while the noticeable radio-speck of thyroid gland has been observed at the same site by injection of the gelatin microspheres, which proved that 131I in wrapped gelatin microsphere has better stability than in the gelatin microspheres.

Key words: Gelatin microspheres, iodine-131, iodine loading, Sodium alginate, stability

TrendMD: