放射线联合p53基因及内皮抑素治疗小鼠前列腺癌皮下移植瘤

Objective To test the hypothesis that p53 gene therapy combined with endostatin can enhance tumor response to radiation therapy of RM-1 mouse xenograft prostate cancer and to investigate its mechanism. Methods A mouse prostate cancer model was established. Then mice with xenograft tumor were randomly divided into group A (control), B (radiation), C (radiation and rAdp53), D (radiation and rh-endostatin) and E (radiation and rAdp53 and rh-endostatin). On day 1, rAdp53 was injected intra-tumorously with 1 × 1010 vp per animal to group C and E. From day 1 to 14, rh-endostatin was given 15 mg/kg intraperitoneally daily to group D and E. On day 4 single fraction of 15 Gy was given to tumors in groups B, C, D and E. Normal saline was injected intra-tumorously or intraperitoneaUy accordingly as control. No treatment was done to group A. Tumor volume was measured daily. Samples were collected on Days 5, 10 and 15. Ki67, CD31, p53 and VEGF were detected by means of immunohistochemistry. Results (1) Radiation alone, radiation combined with intra-tumorous injection of Adp53 and/or intraperitoneal injection of rh-endostatin resulted in tumor growth arrest of RM-1 cells in vivo (P = 0.000). Radiation combined with both rAdp53 and rh-endostatin was the most effective treatment (P < 0.05). (2) All the four treatment groups had a decreased expression of mutant type P53 (P = 0.000). The expression of Ki67 in groups B and C were equal (P 0.05) and increasing (P = 0.000), respectively. Group D had a up-down-up curve (P < 0.05), but group E had a up-down one. On day 5 the expresion of VEGF in group E was the lowest (P < 0.05). An increased expression of MVD compared with the control was shown, and MVD in groups C, D and E were always higher than that in the control (P < 0.05). Conclusions The limitation of radiotherapy could be overcome by combination with beth p53 gene therapy and endostatin on the growth of mouse prostate cancer cell. Radiation, rAdp53 and endostatin have their own role but they can be interacted with each other.     

以动眼神经麻痹为首发症状的鼻咽癌2例

病例1,男,36岁,因左眼半固定只能向外移动4个月余,于1994年4月到我院门诊诊治。1994年1月,患者无明显诱因而出现左眼处于半固定状态,只能向外移动,同时同侧上睑下垂,瞳孔散大,对光及节反射消失,在外院眼科多次就诊无效。患者1个月前出现左侧头痛、左耳闷胀,听力下降,在外院耳鼻咽喉科就诊,并行鼻咽部活检2次,均未见癌细     

放射线联合p53基因及内皮抑素治疗小鼠前列腺癌皮下移植瘤

Objective To test the hypothesis that p53 gene therapy combined with endostatin can enhance tumor response to radiation therapy of RM-1 mouse xenograft prostate cancer and to investigate its mechanism. Methods A mouse prostate cancer model was established. Then mice with xenograft tumor were randomly divided into group A (control), B (radiation), C (radiation and rAdp53), D (radiation and rh-endostatin) and E (radiation and rAdp53 and rh-endostatin). On day 1, rAdp53 was injected intra-tumorously with 1 × 1010 vp per animal to group C and E. From day 1 to 14, rh-endostatin was given 15 mg/kg intraperitoneally daily to group D and E. On day 4 single fraction of 15 Gy was given to tumors in groups B, C, D and E. Normal saline was injected intra-tumorously or intraperitoneaUy accordingly as control. No treatment was done to group A. Tumor volume was measured daily. Samples were collected on Days 5, 10 and 15. Ki67, CD31, p53 and VEGF were detected by means of immunohistochemistry. Results (1) Radiation alone, radiation combined with intra-tumorous injection of Adp53 and/or intraperitoneal injection of rh-endostatin resulted in tumor growth arrest of RM-1 cells in vivo (P = 0.000). Radiation combined with both rAdp53 and rh-endostatin was the most effective treatment (P < 0.05). (2) All the four treatment groups had a decreased expression of mutant type P53 (P = 0.000). The expression of Ki67 in groups B and C were equal (P 0.05) and increasing (P = 0.000), respectively. Group D had a up-down-up curve (P < 0.05), but group E had a up-down one. On day 5 the expresion of VEGF in group E was the lowest (P < 0.05). An increased expression of MVD compared with the control was shown, and MVD in groups C, D and E were always higher than that in the control (P < 0.05). Conclusions The limitation of radiotherapy could be overcome by combination with beth p53 gene therapy and endostatin on the growth of mouse prostate cancer cell. Radiation, rAdp53 and endostatin have their own role but they can be interacted with each other.     

小脑源性眩晕7例报告

以眩晕为主诉的病症很多 ,涉及到多个临床学科 ,及时正确的诊断将直接影响到患者的预后。现将我科收治的 7例小脑源性眩晕的资料报告如下 ,并与梅尼埃病作一比较。1　临床资料近 15年中我科收治小脑源性眩晕患者共 7例 ,男 4例 ,女 3例 ;年龄 2 4～ 4 5岁 ,平均 34.3岁。小脑肿瘤 4例 ,急性桥小脑脚局限性脑炎 2例 ,小脑蚓部出血 1例。从发病到确诊时间为 1～ 17ｄ ,平均 11.3ｄ。症状 :7例均有眩晕、恶心呕吐、头痛症状 ,2例耳闷耳鸣听力下降。体征 :4例眼震呈水平性 ,5例指鼻及轮替试验阳性 ,2例膝腱反射亢进 ,4例膝腱反射减弱 ,2例眼底视…     

放射线联合p53基因及内皮抑素治疗小鼠前列腺癌皮下移植瘤

Objective To test the hypothesis that p53 gene therapy combined with endostatin can enhance tumor response to radiation therapy of RM-1 mouse xenograft prostate cancer and to investigate its mechanism. Methods A mouse prostate cancer model was established. Then mice with xenograft tumor were randomly divided into group A (control), B (radiation), C (radiation and rAdp53), D (radiation and rh-endostatin) and E (radiation and rAdp53 and rh-endostatin). On day 1, rAdp53 was injected intra-tumorously with 1 × 1010 vp per animal to group C and E. From day 1 to 14, rh-endostatin was given 15 mg/kg intraperitoneally daily to group D and E. On day 4 single fraction of 15 Gy was given to tumors in groups B, C, D and E. Normal saline was injected intra-tumorously or intraperitoneaUy accordingly as control. No treatment was done to group A. Tumor volume was measured daily. Samples were collected on Days 5, 10 and 15. Ki67, CD31, p53 and VEGF were detected by means of immunohistochemistry. Results (1) Radiation alone, radiation combined with intra-tumorous injection of Adp53 and/or intraperitoneal injection of rh-endostatin resulted in tumor growth arrest of RM-1 cells in vivo (P = 0.000). Radiation combined with both rAdp53 and rh-endostatin was the most effective treatment (P < 0.05). (2) All the four treatment groups had a decreased expression of mutant type P53 (P = 0.000). The expression of Ki67 in groups B and C were equal (P 0.05) and increasing (P = 0.000), respectively. Group D had a up-down-up curve (P < 0.05), but group E had a up-down one. On day 5 the expresion of VEGF in group E was the lowest (P < 0.05). An increased expression of MVD compared with the control was shown, and MVD in groups C, D and E were always higher than that in the control (P < 0.05). Conclusions The limitation of radiotherapy could be overcome by combination with beth p53 gene therapy and endostatin on the growth of mouse prostate cancer cell. Radiation, rAdp53 and endostatin have their own role but they can be interacted with each other.     

放射线联合p53基因及内皮抑素治疗小鼠前列腺癌皮下移植瘤

Objective To test the hypothesis that p53 gene therapy combined with endostatin can enhance tumor response to radiation therapy of RM-1 mouse xenograft prostate cancer and to investigate its mechanism. Methods A mouse prostate cancer model was established. Then mice with xenograft tumor were randomly divided into group A (control), B (radiation), C (radiation and rAdp53), D (radiation and rh-endostatin) and E (radiation and rAdp53 and rh-endostatin). On day 1, rAdp53 was injected intra-tumorously with 1 × 1010 vp per animal to group C and E. From day 1 to 14, rh-endostatin was given 15 mg/kg intraperitoneally daily to group D and E. On day 4 single fraction of 15 Gy was given to tumors in groups B, C, D and E. Normal saline was injected intra-tumorously or intraperitoneaUy accordingly as control. No treatment was done to group A. Tumor volume was measured daily. Samples were collected on Days 5, 10 and 15. Ki67, CD31, p53 and VEGF were detected by means of immunohistochemistry. Results (1) Radiation alone, radiation combined with intra-tumorous injection of Adp53 and/or intraperitoneal injection of rh-endostatin resulted in tumor growth arrest of RM-1 cells in vivo (P = 0.000). Radiation combined with both rAdp53 and rh-endostatin was the most effective treatment (P < 0.05). (2) All the four treatment groups had a decreased expression of mutant type P53 (P = 0.000). The expression of Ki67 in groups B and C were equal (P 0.05) and increasing (P = 0.000), respectively. Group D had a up-down-up curve (P < 0.05), but group E had a up-down one. On day 5 the expresion of VEGF in group E was the lowest (P < 0.05). An increased expression of MVD compared with the control was shown, and MVD in groups C, D and E were always higher than that in the control (P < 0.05). Conclusions The limitation of radiotherapy could be overcome by combination with beth p53 gene therapy and endostatin on the growth of mouse prostate cancer cell. Radiation, rAdp53 and endostatin have their own role but they can be interacted with each other.     

放射线联合p53基因及内皮抑素治疗小鼠前列腺癌皮下移植瘤

目的 观察放射线联合p53基因及内皮抑素治疗C57BL/6小鼠前列腺癌皮下移植瘤的效果,并初步探讨其作用机制。方法 建立C57BL/6小鼠前列腺癌皮下移植瘤模型。随机分成5组:空白组(A)、放射组(B)、放射线联合p53基因组(C)、放射线联合内皮抑素组(D)及放射线联合p53基因和内皮抑素组(E)。第1天C、E组瘤内注射p53基因腺病毒(1×1vp),第1~14天D、E组每日1次腹腔注射内皮抑素(1.5mg/kg)。第4天B、C、D、E组小鼠肿瘤区单次照射(6 MV X线D_T 15Gy)。每日测量肿瘤体积;检测各组肿瘤标本P53、Ki67及血管内皮生长因子(VEGF)的表达及微血管密度值(MVD)。结果 4个治疗组的肿瘤生长速度均低于空白组(P=0.000),其中E组生长最慢(P<0.05)。免疫组织化学结果:4个治疗组P53的表达均明显低于空白组(P=0.000);4个治疗组Ki67的表达均高于空白组,但变化趋势不同:B、C组Ki67的表达值接近,均随时间的推移而逐渐升高(P=0.000),D、E组的表达则呈现波动性;第5天时E组VEGF的表达最低(P<0.05);肿瘤生长过程中各组MVD值均持续升高,C、D、E 3组MVD值在各时间均高于空白组(P<0.05)。结论 放射线联合p53基因及内皮抑素的抑瘤效果优于单独放射治疗及放射线联合p53基因或内皮抑素。三者均有自己的作用机制,但相互之间可以互相影响。     

论中药工业中的中试放大验证

本文对中药制药工程技术的四要素之一-中药施工与验证进行探讨,从中药研究成果转化为大规模生产的过程中一般都将发生质的变化,许多重大工程技术问题也往往出现在这一阶段。因此,中试放大验证至关重要,也中药现代化的关键。本文论述了在实现中药大规模生产过程中进行中试放大验证的必要性,主要技术内容,应达到的目标,并就中试放大验证平台的建设,基本功能与任务,运行等进行了详细介绍。     

安徽省中药产业化发展的反思

中药产业化是在传统中药生产基础上,经国家有关部委在整合调整中按其属性进行规划的新兴产业群体,其中包括中药农业、中药工业、中药商业和中药工程技术.     

Merocel高膨胀止血材料在鼻腔手术和鼻出血病例的应用

传统的鼻腔、鼻窦手术和鼻出血的止血材料均以凡士林纱条为主,此材料经济实用,但存在术后鼻内胀痛和头痛症状重、留置时间短、取出时易致出血及疼痛、鼻粘膜水肿反应重等缺点。我科用Merocel高膨胀止血材料作填塞物,较好地解决了以上缺点。现总结报告如下。1　材料和方法1.1　治疗组用美国美敦力—施美德(Mderonic—Xomed)公司生产的Merocel高膨胀止血材料,填入鼻腔后注入5ml生理盐水或生理盐水中加入适量粘膜表面麻醉剂和抗生素使Merocel高膨胀止血材料膨胀。对照组用凡士林纱条填塞。1.2　病例选择1.2 .1　治疗组选择2 0 0 2 - 10～2 0 …