摘要
目的探究放射性125I粒子对Sprague Dawley(SD)大鼠肝泡型包虫以及裸鼠皮下泡型包虫的影响。方法20只裸鼠,体质量20~24 g,10周龄,皮下种植多房棘球蚴原头节后分组干预。将接种成功的16只裸鼠分为实验组(n=8)、穿刺组(n=4)和模型组(n=4)。模型组无任何干预,穿刺组仅粒子穿刺针穿刺。实验组瘤体植入125I粒子。14只无特定病原体雄性SD大鼠,体质量280~320 g,12周龄,建立肝泡球蚴病模型。随后分为干预组(n=10)和对照组(n=4)。干预组病灶植入125I粒子。对照组仅开腹和关腹。两种模型动物均在干预45 d后处死。测定裸鼠瘤体大小变化。分别观察各组病灶泡型棘球蚴原头节活性和病理变化。结果干预第22、30、40天,实验组瘤体最大直径(10.7±5.2)mm、(10.9±5.0)mm、(8.5±4.3)mm,小于穿刺组(24.5±4.4)mm、(25.4±4.1)mm、(31.4±2.8)mm和模型组(22.5±7.3)mm、(25.0±5.4)mm、(26.7±6.3)mm,差异均有统计学意义(均P<0.05)。实验组病灶中的原头节数量、活性低于穿刺组和模型组。光镜下,实验组泡型棘球蚴育囊及虫体结构明显被破坏,穿刺组和模型组泡型棘球蚴育囊的角质层和生发层结构清晰,含多个结构完整原头节。干预组与对照组SD大鼠的病理改变与裸鼠结果基本一致。结论放射性125I粒子对泡球蚴原头节具有杀伤作用进而抑制泡型包虫病的进展。
Objective To investigate the effect of 125I particles in alveolar echinococcosis with the animal model (nude mice and Sprague Dawley rats).Methods Twenty 10 weeks nude mice with body weight ranged from 20 to 24 g were divided into three groups. Sixteen nude mice were divided into experimental group (n=8), puncture group (n=4) and model group (n=4). There was no intervention in the model group and only particle puncture needle was used in the puncture group. 125I particles were implanted in the experimental group. 14 male Sprague Dawley rats without specific pathogen, with body weight 280-320 g, 12 weeks old, were used to construct the model of hepatic alveolar echinococcosis. Then the rats were divided into intervention group (n=10) and control group (n=4). In the intervention group, 125I particles were pushed into the lesions. The abdomen was only open and closed in the control group. All the mice were sacrificed 45 days after intervention. The tumor size was measured. The activity of protoscolex and pathological changes of Echinococcus multilocularis in each group were observed.Results At the timepoint of 22nd, 30th and 40th day of intervention, the largest diameter of tumor in nude mice experimental group was (10.7±5.2) mm, (10.9±5.0) mm, (8.5±4.3) mm, smaller than that in puncture group (24.5±4.4) mm, (25.4±4.1) mm, (31.4±2.8) mm and model group (22.5±7.3) mm, (25.0±5.4) mm, (26.7±6.3) mm, with statistically significant difference (P<0.05). The number and activity of protoscoleces in experimental group were lower than those in puncture group and model group. Under the light microscope, the structure of echinococcus vesiculae and its body in the experimental group was obviously destroyed, and the cuticle and germinal layer of echinococcus vesiculae in the puncture group and the model group were normal, with multiple intact protoscoleces. The pathological changes of Sprague Dawley rats in the intervention group and the control group were basically the same as those in the nude mice model.Conclusion The
作者
贾凡
张灵强
李梦轩
阳丹才让
柳源
庞明泉
王海久
樊海宁
Jia Fan;Zhang Lingqiang;Li Mengxuan;Yangdan Cairang;Liu Yuan;Pang Mingquan;Wang Haijiu;Fan Haining(Department of Hepatobiliary and Pancreatic Surgery,Affiliated Hospital of Qinghai University,Clinical Medicine Research Center of Echinococcosis in Qinghai Province,Key Laboratory of Echinococcosis in Qinghai Province,Xining 810000,China)
出处
《中华肝胆外科杂志》
CAS
CSCD
北大核心
2020年第5期374-377,共4页
Chinese Journal of Hepatobiliary Surgery
基金
青海大学附属医院中青年课题(ASRF-2016-ZD-02)
青海省科技厅自然科学基金(2018-ZJ-954Q)。
关键词
棘球蚴病
肝
125I粒子
放射治疗
动物模型
Echinococcosis,hepatic
125I particles
Radiation therapy
Animal model
