455 research outputs found

    Preclinical study of regulatable oncolytic HSV-1 for liver cancer therapy

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    肝癌是我国常见的恶性肿瘤之一,给人类健康造成了极大的危害。尽管外科手术治疗对早期肝癌取得较好的治疗效果,但由于大部肝癌患者只有到了中晚期才被发现,已经发生了远端转移,往往错过了最佳治疗时机,使得肝癌患者的五年生存率急剧降低。目前几乎没有针对中晚期肝癌有效的治疗手段。因此,开发安全、高效的治疗手段对提高中晚期肝癌患者的生存时间有重要的现实意义。溶瘤病毒作为一种新型有效的治疗手段,具有安全、高效和副作用小等特点,在肿瘤治疗的临床开发上极具应用前景。目前溶瘤疱疹病毒OncoVexGMCSF已经完成治疗晚期黑色素瘤患者的三期临床试验,取得了不错的临床治疗效果。因此探索开发一种新型溶瘤病毒并应用于肝癌的...Hepatocellular Carcinoma (HCC) is one of the most common malignant tumor in China, which has caused great damage to human health. Although HCC patients in very early stage can benefit from surgical resection, most HCC patients are diagnosed at advanced stage when distant metastases have presented. These patients with advanced HCC miss the optimal opportunity for HCC treatment, so the overall 5-yea...学位:理学博士院系专业:生命科学学院_生物化学与分子生物学学号:2162010015388

    Effects of Chinese Medicine of Fuyang Detoxification on Cellular Immune Function in Breast Cancer Undergoing Neoadjuvant Chemotherapy

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    目的研究与分析中药扶阳清毒治疗对乳腺癌新辅助化疗患者细胞免疫功能的具体影响。方法方便选取该院自2014年3月—2017年3月收治的乳腺癌初治患者68例,按照随机数字表法将其随机分为单一治疗组与联合治疗组,每组34例,予以单一治疗组患者单纯新辅助化疗治疗,予以联合治疗组患者新辅助化疗联合中药扶阳清毒法治疗,另选取该院同一时期收治的乳腺纤维瘤患者34例患者做为对照组,对单一治疗组及联合治疗组两组患者治疗前后细胞免疫功能变化进行观察与对比。结果单一治疗组患者与联合治疗患者组两组治疗前的CD3、CD4、CD8及NK细胞数量与对照组患者相比差异有统计学意义(P〈0.05);治疗后,单一治疗组患者CD3、CD4、CD8及NK细胞数量分别为(46.62±8.67)、(34.16±6.68)、(29.32±6.41)、(31.05±5.35),与治疗前相比差异有统计学意义(P〈0.05);治疗后,联合治疗组患者CD3、CD4、CD8、CD4/CD8值及NK细胞数量分别为(49.18±8.87)、(36.51±6.65)、(27.54±7.50)、(1.31±0.65)、(32.53±5.44),与治疗前相比具有一定变化,但对比结果差异无统计学意义(P〉0.05)。结论对于接受新辅助化疗出现细胞免疫功能下降患者行中药扶阳清毒法联合治疗可明显改善其细胞免疫功能,中药扶阳清毒治疗可对乳腺癌患者细胞免疫功能的改善起到积极作用。Objective This paper tries to study and analyze the specific effects of Chinese medicine "Fuyang detoxification"on cellular immune function in breast cancer patients undergoing neoadjuvant chemotherapy. Methods 68 patients with breast cancer in this hospital from March 2014 to March 2017 were selected and randomly divided into the single treatment group and the combined treatment group, with 34 patients in each group, the patients in the treatment group adopted single Danchunxin adjuvant chemotherapy treatment, the combined group was treated with neoadjuvant chemotherapy detoxification combined with traditional Chinese medicine Fuyangqing, another 34 mammary fibroma patients in this hospital during the same period were selected as the control group. The changes of cellular immune function were observed and compared before and after a single treatment group and combined treatment between the two groups. Results CD3, CD4, CD8 and NK cells in the treatment group and combined treatment group before treatment were(46.62 ±8.67),(34.16 ±6.68)、(29.32 ±6.41),(31.05±5.35), significant different from those before treatment(P0.05); after treatment, a single treatment of patients with CD3, CD4, CD8 and the number of NK cells were(49.18±8.87),(36.51±6.65),(27.54±7.50),(1.31±0.65),(32.53±5.44), but the result was not statistically significant(P〉0.05). Conclusion Neoadjuvant chemotherapy for the cell immune function decline in patients with traditional Chinese medicine Fuyangqing combined therapy can significantly improve the cellular immune function, Chinese medicine treatment can help Fuyang detoxification on immune cells in patients with breast cancer plays a positive role in improving the function

    扶阳健脾法在晚期胃癌治疗中的应用观察及对患者生活质量的影响

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    目的探讨中药扶阳健脾法在晚期胃癌治疗中的应用价值及对患者生活质量的影响。方法方便选取该院120例晚期胃癌患者(2015年1月—2017年6月间收治)进行观察研究,按随机数表法将患者分组:常规组(n=60)、干预组(n=60),常规组进行常规化疗,干预组进行健脾扶正汤配合化疗,总结两种治疗方案对患者疗效及预后的影响。结果干预组治疗后中医证候积分(12.5±1.4)分明显低于常规组(14.1±1.2)分,KPS评分(81.3±2.1)分、CD4+(40.3±3.8)%、CD3+(60.2±6.8)%、生活质量评分(70.5±6.8)分明显高于常规组(75.2±2.3)分、(35.2±4.3)%、(56.2±5.6)%、(62.2±6.2)分(t=10.328,P=0.000;t=20.544,P=0.000;t=9.187,P=0.000;t=5.533,P=0.000;t=10.370,P=0.000)。干预组患者不良反应发生率1.67%明显低于常规组13.33%(χ2=5.886,P=0.015)。干预组1年生存率96.67%明显高于常规组80.00%(χ2=8.086,P=0.004)。结论在晚期胃癌治疗中应用中药扶阳健脾法治疗可提升患者治疗效果,改善患者免疫功能及生活质量

    肝细胞癌靶向治疗最新研究进展

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    近年来,随着肝细胞癌基础研究不断深入,分子靶向药物及免疫治疗药物的临床开发及应用为肝细胞癌的治疗带来了新的突破。肝细胞癌的靶向治疗药物具有较高的特异性,能够选择性地杀伤肿瘤细胞,尽可能减少对正常组织的损伤。目前,这些靶向治疗药物主要分为小分子靶向药物、肝细胞癌抗原特异性靶向药物和免疫检验点靶向药物3类。现就肝细胞癌靶向治疗药物的最新研究进展作简要综述

    创新是房地产可持续发展的源泉

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    如何保持可持续发展 ,是房地产业主体———政府和企业无法回避的问题。政府要从制度、税收政策上的创新 ,优化税收结构 ;企业在观念、产品方面的创新 ,是房地产可持续发展的保障。创新是房地产可持续发展的源

    项目投资的模糊多属性决策

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    文章提出一种行之有效的项目投资的模糊多属性决策方法,并用一个实例成功地进行了演算

    Research on the technology of high precision aspheric surface manufacturing

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    随着光学技术的不断发展,多种采用非球面镜的高性能光学系统被越来越广泛地应用到各种大型投影电视、高清晰度电视、高速复印机及照相机中。与球面光学零件比较,非球面光学零件具有矫正像差、简化系统、提高光学系统精度优点。当前,非球面器件广泛应用于航天、航空、国防等行业中,非球面光学零件的制造也面临着提高加工精度、提高加工效率的两大难题。超精密磨削加工克服了传统磨削、衍磨、抛光加工效率低等缺点,是一种新的加工光学非球面零件的方法。在机械加工的各种方法中,精密磨削是决定加工工件的形状精度、表面粗糙度和表面加工质量的主要手段,可以获得高精度和高光洁度的加工表面。在金刚石砂轮对轴对称非球面的超精密加工中,通常使...With the development of optical technology, many high performance aspheric optical systems have been widely used in high-resolution television and high-speed copycats and cameras. Compare with spherical optical accessory, the aspheric lens has the ability to simplify system structure and improve the accuracy of system. At present, aspheric lens have been widely used in space navigation and nationa...学位:工学硕士院系专业:物理与机电工程学院机电工程系_测试计量技术及仪器学号:20022901

    Study on the Properties of Potato Polyphenol Oxidase and the Inhibition Mechanism of its Inhibitors

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    多酚氧化酶(EC.1.14.18.1)广泛存在于微生物、动植物中,是结构复杂的含铜氧化还原酶。它是果蔬褐变过程中起重要作用的一种酶,在果蔬的酶促褐变过程中,催化产生引起褐变的色素物质。因此对此酶的酶学特性,催化作用机理和抑制机理的研究将为果蔬的保鲜奠定基础。以马铃薯为原料提取多酚氧化酶,进行了分离纯化,得到比活力为1928U/mg,纯化倍数为9.4的部分纯化的马铃薯多酚氧化酶。研究马铃薯多酚氧化酶的理化性质,该酶作用的最适温度和pH分别是30℃和pH6.0;酶在低于50℃和在pH5.15~8.75范围内稳定;在pH6.8、30℃条件下,酶催化L-DOPA氧化反应的Km为7.24mmol/L。金...Polyphenol oxidase (EC 1.14.18.1) is widely distributed in microorganisms, animals and plants.It is a copper-containing enzyme which has complex constructure. Polyphenol oxidase (PPO) acts as an important role during the process of enzymetic browning in fruit and vegetable,for the reason that it can catalyze the melanin Synthesis. The studies of the enzymetic characteristics, catalytic mechanism a...学位:理学硕士院系专业:生命科学学院生物学系_生物化学与分子生物学学号:20032609

    Research on High Precision Machining and Measuring Technology of Wedge Aspheric Surface

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    非球面光学元件具有矫正像差、简化系统、提高光学系统精度优点。当前,光学非球面器件的使用主要受到其加工精度、表面质量和制造成本的限制。精密数控磨削加工技术克服了原有传统非球面器件加工中人为因素决定工件精度、加工效率、重复性差的缺点,是一种加工光学非球面零件的新方法。 本文针对光学非球面的加工机理,提出了多种改善加工效率、提高加工精度的加工与测量方法。设计并实现了高精度非球面制造及测量系统软件模块:完成非球面磨削加工的工件安装定位、加工轨迹规划、加工精度影响因素控制整套流程;砂轮加工磨削线速度及进给速度对元件加工精度的影响;不同非球面元件表面方程的数学建模及应用;加工工具均匀磨损控制及工件均匀磨...With the development of national defense industry, aerospace industry and civil optical technology, various kinds of high performance aspheric optical lens have been developed and widely used in the high performance optical systems. Compared with the spherical optical accessory, the aspheric lens can correct aberration, simplify system structure and improve the accuracy of system. At present, many...学位:工学博士院系专业:物理与机电工程学院机电工程系_测试计量技术及仪器学号:1822005140303

    Study on Risk Management of Chinese Securities Firms:A Case Study on Everbright Securities

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    在我国金融体系中,证券行业在资金融通、资源配置、财富管理等方面发挥着不可替代的作用。由于行业特点,证券公司面临着形式多样、性质复杂的各种风险,能否对风险进行有效管理已成为影响公司生存发展的重要因素。我国证券公司发展历史较短,在经历了2004-2007年综合整治后,风险管理和内部控制能力得到提升。但随着各种新业务的迅速发展和环境的变化,部分证券公司在风险管理和内控建设上相对滞后,由此引发的风险事件严重影响了公司的正常发展。外部机构监管和内部风险管理建设是证券公司防范风险、健康发展的两大保障,但外部监管往往信息成本高且针对性不强,对证券公司而言,加强自身风险管理和内部控制建设才是根本性措施。 本...As an emerging industry, Securities industry plays an irreplaceable role in financing, resource allocation, wealth management and other financial functions. Faced with various and complicated risk, effective risk management become a critical factor that strongly affect a securities survival and development. After comprehensive remediation during the period of 2004-2007, Chinese securities firms ha...学位:管理学硕士院系专业:管理学院_会计学学号:1752011115116
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