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Objective To investigate the effects of tissue specific cytosine deaminase/5-fluorocytosine (CD/5-FC) thermotherapy on hepatic metastasis of colonic carcinoma in nude mice. Methods Forty-five nude mice were randomly divided into control group, 5-FC group and 5-FC thermotherapy group according to the random number table (15 mice in each group). Mice models of hepatic metastasis of colonic carcinoma were established by portal vein injection of LoVo/CEACD cells. The hepatic metastasis rate and number of metastatic nodules of the 3 groups were compared by ehi-square test and one-way ANOVA. The pathological changes in tumor tissues and apoptotic index of tumor cells were observed. The expression of the CD gene in tumor tissues was detected by fluorescent quantitative RT-PCR and Western blot. Results The number of metastatic nodules and liver metas-tasis rate were 4.6±1.3 and 100.0% in control group, 2.2±1.0 and 60.0% in 5-FC group, 0.5±0.8 and 13.3% in 5-FC thermotherapy group, with statistical difference among the 3 groups (F=25.898, χ2=5.208, 19.548, 5.168, P<0.05). The mean apoptotic indexes of tumor cells of the 3 groups were 4.6%, 9.9% and 17.4%, respectively. Vacuolar degeneration, cell necrosis, cytolysis and apoptotic bodies were mostly observed in the 5-FC thermotherapy group. The expression of CD gene in tumor tissue was detected in all the groups. Conclusion Tissue specific CD/5-FC thermotherapy has inhibitory effects on the hepatic metastasis of LoVo cells transfected with CD gene. 相似文献
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本文通过分析近5年来我院18例女性直肠癌全直肠系膜切除术后直肠阴道痿的临床资料。发现直肠阴道痿多发生于中低位直肠癌行全直肠系膜切除保肛手术的患者。痿的发生与肿瘤的位置、肿瘤的分期、肿瘤距肛门口的距离.以及手术技巧、手术难度、引流方法有关。而与是否进行预防性造口,以及是否采用腹腔镜手术无关。预防上强调应重视术中直肠前壁的锐性分离、结肠直肠吻合以及术后盆腔的负压引流。治疗上应首先进行保守治疗,即肠内营养,阴道冲洗。早期配合肠外营养、及全身或局部抗炎治疗,大部分直肠阴道痿通过保守治疗可以治愈。保守治疗无效时考虑结肠或回肠末端造口。若长期不愈应考虑吻合口肿瘤复发的可能。 相似文献
3.
目的:初步分析人核受体hLRH-1不同变异体在多种肿瘤组织和细胞系中的表达。方法:常规RT-PCR法分析hLRH-1v1和hLRH-1在肝癌等多种肿瘤组织和HepG2等肿瘤细胞系中的表达情况,实时定量PCR法分析hLRH-1v1,hLRH-1和hOct4在HepG2,SMMC-7721和BEL-7402三株肝癌细胞系的表达水平。结果:hLRH-1v1的表达见于所有检测的12种类型肿瘤和8种恶性肿瘤细胞系,hLRH-1的表达则仅在12种类型肿瘤中的6种肿瘤组织中可检测到,但8种恶性肿瘤细胞系均为hLRH-1阳性表达;在HepG2,SMMC-7721和BEL-7402三株肝癌细胞系中hLRH-1v1和hOct4的表达呈正相关。结论:hLRH-1v1在肿瘤中广泛表达,可能在维持肿瘤干细胞的自我更新中发挥重要作用。 相似文献
4.
胃泌素拮抗剂增加CD自杀基因对结直肠癌细胞的杀伤作用 总被引:3,自引:0,他引:3
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随着TME观念的推广、手术技术和相关吻合器械的发展,中低位直肠癌手术保肛率有所提高。但同时,遵循TME原则的经腹直肠癌前切除术后出现吻合口瘘的风险亦有增高趋势。2007年3月至2008年12月,南京军区福州总医院普通外科连续185例经腹直肠癌前切除术患者应用大口径肛管引流减压预防吻合口瘘.无1例发生吻合口瘘.效果理想。现总结报告如下。 相似文献
6.
目的 探讨大口径(7.5号)肛管引流减压在预防经腹直肠癌前切除术后吻合口漏中的应用价值.方法 回顾性分析2006年1月至2008年12月期间南京军区福州总医院施行的346例经腹直肠癌前切除术患者的临床资料.结果 185例应用大口径肛管引流减压,术后均未发生吻合口漏,其余161例未放置大口径肛管,术后发生吻合口漏9例(5.59%),二者术后吻合口漏发生率差异有统计学意义(χ2=8.526, P=0.004).其中8例吻合口漏经保守治疗痊愈,1例行近端肠造瘘粪便转流术治愈,无围手术期死亡病例.结论 大口径肛管引流减压能够有效预防经腹直肠癌前切除术后吻合口漏的发生,增加手术安全性. 相似文献
7.
乳腺癌是女性最常见的恶性肿瘤,全球每年约有近50万人死于该病。19世纪人们认为乳腺癌是一种局部性疾病,区域淋巴结是癌细胞通过的机械屏障,遵循时间与解剖学的规律,按照"淋巴-血液"的传播途径进行,即乳腺癌先经局部病变后发 相似文献
8.
肠外瘘是胃肠道术后的严重并发症,高流量肠外瘘…合并切口裂开时如何有效地控制和收集流出的肠液,使切口和周围皮肤不受污染和刺激,这是临床上处理肠外瘘的难题。对于此类患者,普遍采用的措施是开放式滴水双套管负压吸。然而,此方法存在较多问题,结果不尽人意。作者自2002年4月至2006年8月对44例合并伤口裂开的高流量肠外瘘患者采用粘贴式负压冲吸器治疗,与1996年2月至2002年3月治疗的38例同类患者在相比。在治愈率、伤口换药次数、敷料消耗量、伤口愈合时间、[第一段] 相似文献
9.
Objective To investigate the effects of tissue specific cytosine deaminase/5-fluorocytosine (CD/5-FC) thermotherapy on hepatic metastasis of colonic carcinoma in nude mice. Methods Forty-five nude mice were randomly divided into control group, 5-FC group and 5-FC thermotherapy group according to the random number table (15 mice in each group). Mice models of hepatic metastasis of colonic carcinoma were established by portal vein injection of LoVo/CEACD cells. The hepatic metastasis rate and number of metastatic nodules of the 3 groups were compared by ehi-square test and one-way ANOVA. The pathological changes in tumor tissues and apoptotic index of tumor cells were observed. The expression of the CD gene in tumor tissues was detected by fluorescent quantitative RT-PCR and Western blot. Results The number of metastatic nodules and liver metas-tasis rate were 4.6±1.3 and 100.0% in control group, 2.2±1.0 and 60.0% in 5-FC group, 0.5±0.8 and 13.3% in 5-FC thermotherapy group, with statistical difference among the 3 groups (F=25.898, χ2=5.208, 19.548, 5.168, P<0.05). The mean apoptotic indexes of tumor cells of the 3 groups were 4.6%, 9.9% and 17.4%, respectively. Vacuolar degeneration, cell necrosis, cytolysis and apoptotic bodies were mostly observed in the 5-FC thermotherapy group. The expression of CD gene in tumor tissue was detected in all the groups. Conclusion Tissue specific CD/5-FC thermotherapy has inhibitory effects on the hepatic metastasis of LoVo cells transfected with CD gene. 相似文献