背景与目的：研究胃癌患者的染色体畸变情况。
ABACKGROOND ALM: Research on the chromosome aberrance of the gastric cancer.
背景与目的：原发于脑脊膜的血管外皮瘤临床少见。
Background and Objectives: Meningeal hemangiopericytoma is an uncommon tumor.
背景与目的脑缺血损伤后细胞凋亡受诸多基因调控。
Background and objective: Many genes modulate the neuronal apoptosis following ischemia brain damage.
背景与目的研究发现，青蒿素类药物具有抗肿瘤活性。
Background and objective Recent researches discovered that artemisinin and its derivatives had anti-tumor activity.
基于上述考虑，本文首先简要介绍了研究背景与目的。
Based on above, this dissertation first introduces the research background and goal briefly.
背景与目的肺癌是对人类健康和生命危害最大的恶性肿瘤。
Background and objective Lung cancer is the most dangerous threating tumor to human's health and life.
背景与目的恶性胸腔积液是晚期恶性肿瘤常见的一个问题。
Background and objective Malignant pleural effusions commonly occur in patients with advanced cancer.
背景与目的：探讨人乙肝病毒基因能否整合在家蝇基因组中。
HBV gene was examined in the genome of DNAs from larvae of housefly by PCR.
背景与目的：食管癌是严重威胁人类健康的消化道恶性肿瘤之一。
Background and purpose: Esophageal carcinoma is a kind of common malignant tumour in digestive system and is threatening health of human being.
背景与目的化疗在晚期非小细胞肺癌的治疗中具有极为重要的作用。
Background and objective Chemotherapy is very important in the treatment of advanced non-small cell lung cancer.
背景与目的：巩膜环扎术是治疗复杂性视网膜脱离的重要手段之一。
Background and purpose: Scleral encircling operation (SEO) is one of the most important operations in curing complicated retinal detachment.
背景与目的：研究亚硫酸钠和亚硝酸钠对蚕豆根尖细胞的致突变作用。
BACKGROUND and AIM: We studied the mutation effects of sodium sulfite and sodium nitrite in root tip cells of Vicia faba.
背景与目的常规细胞学查找肺癌患者胸腔积液中的癌细胞始终是难点。
Background and objective Finding the cancer cells in pleural fluid of patients with lung can-cer by conventional cytology is always a difficult point.
背景与目的：转移癌与淋巴瘤是引起颈部恶性淋巴结肿大的常见原因。
Background and purpose: Metastatic carcinoma and lymphoma are usually the causes of cervical malignant lymph nodes.
研究背景与目的：代谢综合症与胰岛素抵抗与结肠癌的一个高危因素有关。
Background and aims: Metabolic syndrome and insulin resistance are associated with a higher risk of colon cancer.
背景与目的：骨肉瘤转移机制密切相关的基因筛选是骨科领域研究的难点。
Background and purpose: the screening of the genes being related closely with the mechanism of osteosarcoma metastasis was a difficult point in the realm of orthopaedics.
背景与目的：探讨NDV(新城鸡瘟病毒)修饰的瘤苗治疗脑恶性胶质瘤的疗效。
BACKGROUND AND AIM: to evaluate the therapeutical effect of autologous Newcastle_Disease_Virus (NDV) modified tumor cell vaccine in the treatment of malignant gliomas.
背景与目的对于有手术指征的转移性肺癌患者，手术切除已成为标准的治疗方法。
Background and objective Surgical resection becomes standard treatment for pulmonary metastatic tumor with operative indication.
背景与目的研究急性心肌梗死后，骨髓单个核细胞梗死区移植对心室重构的影响。
Background and ObjectiveTo study the effects of allogeneic bone marrow mononuclear cell transplantation on ventricular remodeling after acute myocardial infarction.
背景与目的：建立先天性腭裂模型观察其形成过程中胚胎腭突细胞的超微结构改变。
BACKGROUND AND AIM: To observe the ultrastructure of embryonic palate cells during cleft palate formation using the model of congenital cleft palate.
背景与目的：冠状动脉侧支循环形成是冠状动脉闭塞疾病患者的一个重要适应机制。
Background and Objective: Development of coronary collateral circulation is an important adaptive mechanism occurring in patients with occlusive coronary artery disease.
背景与目的耳鸣是在无外界相应声源刺激时耳内有响声的一种主观感觉，发病率极高。
Background and purposes: Tinnitus is an auditory phantom sensation experienced when no external sound is present.
背景与目的美洲大蠊系列昆虫药品康复新在体外能诱导多种肿瘤细胞系发生细胞凋亡。
Background and objective it has been known that Kangfuxin, a drug derived from Periplaneta Americana, can induce cell apoptosis of many cancer cell lines in vitro.
背景与目的：我们探讨了普通人群中经颅多谱勒血液动力学参数与卒中风险的相关性。
Background and Purpose - we explored the association between transcranial Doppler hemodynamic parameters and the risk of stroke in the general population.
背景与目的：间隙连接在细胞间的营养物质、离子和细胞调节因子的交换中起重要作用。
Background and Objective: the gap junction plays an important role in the exchange of nutrients, ions, and regulatory molecules between cells.
背景与目的：肺外小细胞癌是一种少见的恶性肿瘤，有关其治疗及预后的文献报道不多。
Background and Objective: The treatment and prognosis of extrapulmonary small cell carcinoma (EPSCC), a uncommon malignant tumor, have seldom been reported.
背景与目的：多药耐药在膀胱癌化疗失败中起着重要作用，关于其机制还不是十分清楚。
BACKGROUND & OBJECTIVE: Multidrug resistance plays an important role in chemotherapy failure of bladder cancer, but its mechanism is unclear.
背景与目的：肺纤维化是一种病因复杂的疾病，以成纤维细胞过度增殖、胶原蛋白沉积为特征。
Background and Objective: The pathogenesis of pulmonary fibrosis is complicated, it is characterized with myofibroblast hyperplasia and deposition of collagen protein.
背景与目的：肺纤维化是一种病因复杂的疾病，以成纤维细胞过度增殖、胶原蛋白沉积为特征。
Background and Objective: The pathogenesis of pulmonary fibrosis is complicated, it is characterized with myofibroblast hyperplasia and deposition of collagen protein.
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