[1]魏 强,方亮,杨继金,等. 瘤内注射臭氧致兔VX2瘤组织超微结构改变的研究[J].介入放射学杂志,2013,(10):830-833.
 WEI Qiang,FANG Liang,YANG Ji? jin,et al. The changes of ultra?蛳 microstructure of transplanted VX?蛳 2 tumor caused by the injection of ozone into the tumor: an experimental study in rabbits[J].journal interventional radiology,2013,(10):830-833.
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 瘤内注射臭氧致兔VX2瘤组织超微结构改变的研究()

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《介入放射学杂志》[ISSN:1008-794X/CN:31-1796/R]

卷:
期数:
2013年10期
页码:
830-833
栏目:
实验研究
出版日期:
2013-10-15

文章信息/Info

Title:
 The changes of ultra?蛳 microstructure of transplanted VX?蛳 2 tumor caused by the injection of ozone into the tumor: an experimental study in rabbits
作者:
 魏 强 方亮 杨继金 霍宁宁 吕 虎 熊源长 江 旭 李 慧
Author(s):
 WEI Qiang FANG Liang YANG Ji?蛳 jin HUO Ning?蛳 ning LV Hu XIONG Yuan?蛳 chang JIANG Xu LI Hui.
 Department of Radiology, Changhai Hospital, Second Military Medical University, Shanghai 200433, China
关键词:
 【关键词】 肿瘤 臭氧 VX2瘤 超微结构 治疗
文献标志码:
A
摘要:
 【摘要】 目的 研究瘤体内注射不同浓度臭氧(O3)后兔VX2瘤组织超微结构的改变,以探讨臭氧用于实验研究/临床应用的安全有效浓度,并根据超微结构改变持续时间,推断重复治疗可能的间隔时间。方法 20只荷瘤大白兔分为4组,对照组2只,T20(20%臭氧)、T40(40%臭氧)和T60组(60%臭氧)治疗组各6只,直视下按瘤体积2倍量不同浓度的O2/O3混合气体用注射器直接注入瘤体内,对照组(仅模拟穿刺)及各治疗组取2只兔在实验完成后即刻取材,剩余兔分别于术后第4、8天各处死2只取材、制片,用透射电镜观察。结果 T20组注射臭氧后即刻可见肿瘤细胞有轻微的损伤改变,线粒体轻微嵴溶解,少许线粒体呈球状肿胀,内质网扩张,部分核周间隙增宽,细胞间隙正常。T40组和T60组注射臭氧后即刻均可见肿瘤细胞有明显损伤,表现为线粒体明显肿胀,内质网扩张,细胞核肿胀,核周间隙增宽,部分细胞膜崩裂,组织结构崩解,术后第4天,可见大片坏死,炎细胞浸润,肿瘤细胞膜不完整,溶酶体线粒体形成(呈新月形黑颗粒)或线粒体溶解,内质网扩张,部分胞质溶解,细胞核不规则,核周间隙扩张,T60组更明显。血管内皮细胞也有损伤改变。3组的细胞损伤在术后第8天仍可观察到,但呈逐渐修复状态。结论 兔VX2瘤内注射20% ~ 60%臭氧后,都会对肿瘤细胞、瘤内血管内皮细胞造成损伤甚至死亡,20%的损伤较轻微,40% ~ 60%的比较明显,但综合安全性及治疗效果, 40%臭氧可能更为明显。虽然有部分修复,但术后第8天仍可见较明确的细胞损伤改变,故治疗间隔以4 ~ 8 d为宜。

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 (收稿日期:2013-02-02)
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