BACKGROUND OBJECTIVE: Multidrug resistance of tumor cells often leads to failure of chemotherapy. The over expression of P glycoprotein ( P gp), encoded by multidrug resistance 1 ( mdr1) gene, plays an important role in multidrug resistance of breast cancer.

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Due to the complexity of tumor formation mechanism and the existence of multidrug resistance, it will not kill the tumor cells completely by using one drug alone.

但由于参与肿瘤形成的分子生物学机制的复杂性和多样性，以及肿瘤细胞多药耐药性的产生，使得仅仅利用一种化疗药物无法从根本上杀灭肿瘤细胞。

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Study on tumor cells' multidrug resistance and its reversion by Chinese herbs

肿瘤多药耐药性与中药逆转研究

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Progress in the study of drug delivery system based on nanoparticles to overcome multi-drug resistance

纳米粒给药系统逆转肿瘤多药耐药性的研究进展

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Study on Active Constituents of Traditional Chinese Medicine Reversing Multidrug Resistance of Tumor Cells in vitro

中药活性成分体外逆转肿瘤细胞多药耐药性的研究

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Conclusions: the multidrug resistance characteristic in SGC-7901/ 5-FU resistant cells may be related to micro-RNA expression profile changes, providing a new research direction to solve the multidrug resistance of tumor chemotherapy.

结论：SGC-7901/5-FU耐药细胞的多药耐药特性可能与micro-RNA表达谱的改变有关，为解决肿瘤化疗的多药耐药性提供新的研究方向。

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Advances of study on tumor multi-drug-resistance and reversal agents

肿瘤多药耐药性及其逆转剂研究进展

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Analysis of bacterial type, drug resistance and infection related factor of multi-drug resistant strains of nosocomial infection in ICU patients

ICU医院感染多重耐药菌类型、耐药性及感染相关因素研究Necroptosis克服肿瘤多药耐药性

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Construction of Magnetic Nano-antisense Probe Using for Tumor Multidrug Resistance

肿瘤多药耐药性磁性纳米反义探针的构建

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Tumor multidrug-resistance and reversing actions of traditional Chinese medicine

肿瘤细胞多药耐药性与中药的逆转作用

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The Involvement and Modulation of ABC Transporters in Multidrug Resistance

肿瘤多药耐药性中的ABC转运蛋白及其调节

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Expression of glucosylceramide synthase mRNA in vincristine-resistant KBV_ ( 200) cell line in association with multidrug resistance

葡萄糖神经酰胺合酶基因在多药耐药肿瘤细胞株KBV（200）的表达及其与肿瘤多药耐药性的关系

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lord harris of high cross, economist and freedom-fighter, died on october 19th, aged 81

中立议员哈里斯爵士，一名经济学家，为自由而战的斗士，于十月十九日逝世，享年八十一岁

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effect of high cross-linking on noncrystallization of corn starches

高交联玉米淀粉的非晶化特性

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study on synthetic technology of high cross-linked potato starch

高交联度马铃薯淀粉合成工艺研究

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study on the properties of physical state of high cross - linked and non - gelatinized starches by dsc

用差示扫描量热法研究高交联非糊化淀粉的物态性质

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three dimensional finite element analysis on thermal force coupling concerning three -high cross -rolling process with round billet

圆坯三辊斜轧过程的三维有限元热-力耦合分析

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we are sorry to report that ralph harris (lord harris of high cross) died of a suspected heart attack at 8am this morning.

拉尔夫哈里斯，今早八时，疑似死于心脏病。对此我们深表遗憾。

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but lucy tusting says it is not easy to decide whether to use the method. she says these methods have been a major reason for the successes in malaria control in recent years.

但是露西塔斯汀表示决定是否使用该方法并非易事。她说这些方法是近年来疟疾防控取得成效的主要原因。

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in the city, efforts will be made to set up and improve the security system including the old-age insurance, medicare insurance, unemployment insurance, and child-bearing insurance.

在城市，建立健全养老保险、医疗保险、失业保险、生育保险等保障制度。

provided by jukuu

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probing into the development of the social insurance system of modern fertility

现代生育社会保险制度发展初探

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