中国寄生虫学与寄生虫病杂志 ›› 2013, Vol. 31 ›› Issue (4): 18-324-326.

• 研究简报 • 上一篇    下一篇

高吸水性树脂联合超声造影剂对HIFU杀伤棘球蚴原头节的增效作用

蔡辉1,2,陈露露3,叶彬1,2 *,赵海龙4,刘爱波1,2,张静1,2,赵毅峰5   

  1. 1 重庆医科大学病原生物学教研室,重庆 400016;2 重庆医科大学分子医学与肿瘤研究中心,重庆 400016;3 重庆医科大学药理学教研室,重庆 400016;4 青海大学医学院病原生物学教研室,西宁 810001;5 青海大学附属医院介入科,西宁 810001
  • 出版日期:2013-08-30 发布日期:2013-12-27

Enhancement of in Vitro Protoscolicidal Effects of High-intensity Focused Ultrasound by a Superabsorbent Polymer and Ultrasound Contrast Agent

CAI Hui1,2,CHEN Lu-lu3,YE Bin1,2 *,ZHAO Hai-long4,LIU Ai-bo1,2,ZHANG Jing1,2,ZHAO Yi-feng5   

  1. 1 Department of Pathogenic Biology, Chongqing Medical University, Chongqing 400016, China; 2 Research Center for Molecular Medicine and Tumor, Chongqing Medical University, Chongqing 400016, China; 3  Department of Pharmacology, College of Pharmacy, Chongqing Medical University, Chongqing 400016, China; 4 Department of pathogenic biology, Medical College, Qinghai University, Xining 810001, China; 5 Department of Interventional Radiology, the Hospital Affiliated to Qinghai University, Xining 810001, China
  • Online:2013-08-30 Published:2013-12-27

摘要: 为探索高吸水性树脂(superabsorbent polymer,SAP)与超声造影剂(ultrasound contrast agent,UCA)协同增强高强度聚焦超声(high intensity focused ultrasound,HIFU)杀伤棘球蚴原头节的效果,将30管棘球蚴原头节悬液(各含约6 000~7 500个原头节)分为5组,分别为A组(对照组,仅给予无功率HIFU普通超声辐照)、B组(单纯HIFU辐照,50 W)、C组(HIFU辐照+10 μl UCA)、D组(HIFU辐照+0.01 g SAP)和E组(HIFU辐照+10 μl UCA+0.01 g SAP)。结果显示,B组超声图像灰度变化明显,悬液温度和原头节死亡率(26.0 ℃±0.2 ℃、30.4%)均比A组的(18.0 ℃±0.1 ℃、1.9%)高(P<0.01)。C、D组的超声图像灰度变化比B组更为明显,悬液温度(27.0 ℃±0.2 ℃,28.2 ℃±0.2 ℃)和原头节死亡率(49.96%,53.69%)也比B组的高(P<0.01)。E组悬液温度(28.4 ℃±0.3 ℃)与C、D组的差异无统计学意义(P>0.05),但原头节死亡率(69.7%)远高于C、D组(P<0.01),且死亡的原头节结构破坏较其余3组更为严重,内部结构消失。

关键词: 高吸水性树脂, 超声造影剂, 高强度聚焦超声, 棘球蚴, 原头节

Abstract: This study evaluated whether or not a superabsorbent polymer(SAP) combined with ultrasound contrast agent (UCA) could enhance damage efficacy of high intensity focused ultrasound(HIFU) on Echinococcus granulosus protoscoleces in vitro. Thirty test tubes each with 6 000-7 500 protoscolices were divided into 5 groups: group A (blank control) without HIFU treatment, group B treated with HIFU(50 W)only, group C treated with 10 μl UCA and HIFU, group D treated with 0.01 g SAP and HIFU, group E treated with 10 μl UCA, 0.01g SAP, and HIFU. In group B, echo enhancement of ultrasound image, suspension temperature(26.0 ℃±0.2 ℃) and protoscoleces mortality(30.4%) were higher than that of group A(18.0 ℃±0.1℃, 1.9%)(P<0.01). Compared with group B, the echo enhancement of ultrasound image, suspension temperature(27.0 ℃±0.2 ℃, 28.2 ℃±0.2 ℃) and protoscoleces mortality(50.0%, 53.7%) of groups C and D increased significantly(P<0.01). In group E, more protoscoleces were stained in red and their internal structures were indistinct. By chi-square test, the protoscoleces mortality of group E(69.7%) was higher than that of groups C and D (P<0.01). There was no sinificant difference in suspension temperature among the 3 groups.    

Key words: Superabsorbent polymer, Ultrasound contrast agent, High intensity focused ultrasound (HIFU), Hydatid, Protoscolex