氟尿嘧啶类联合奥沙利铂方案治疗晚期转移性小肠癌的临床效果

目的 评估临床采用氟尿嘧啶类药物联合奥沙利铂治疗晚期转移性小肠癌的临床效果及安全性.方法 回顾性分析近6年来于本院接受化学治疗的89例晚期小肠癌患者的一般资料,按照治疗方法的不同进行等均分组,其中45例患者采取FOLFOX(奥沙利铂、亚叶酸钙、氟尿嘧啶)治疗方案,纳入对照组,另外44名患者采取XELOX(奥沙利铂联合卡培他滨)方案,作为观察组.观察两组临床效果以及用药不良反应,并在随访过程中观察两组中位疾病进展时间.结果 观察组总有效率优于对照组(61.36％比55.55％),但组间差异无统计学意义(P＞0.05);观察组毒副反应发生率高于对照组(36.3％比31.1％),但差异无统计学意义(P＞0.05).结论 采用氟尿嘧啶类药物联合奥沙利铂治疗晚期转移性小肠癌安全有效,毒副反应可耐受,可作为不可手术切除或转移性小肠癌的一线化疗选择,但仍需要大量数据样本做进一步研究证实.     

靶向治疗联合化疗治疗表皮生长因子受体+肿瘤蛋白53共突变肺腺癌患者的疗效及安全性

目的 探讨靶向治疗联合化疗治疗表皮生长因子受体（EGFR）+肿瘤蛋白53(TP53)共突变肺腺癌患者的疗效及安全性。方法 将120例肺腺癌患者按照治疗方式的不同分为对照组及观察组,每组60例。对照组给予化疗,观察组给予化疗+靶向治疗（奥希替尼）,评价两组患者疗效及不良反应,统计治疗前后两组患者肿瘤标志物[细胞角质蛋白19片段抗原21-1(CYFRA21-1)、鳞状细胞癌抗原（SCC-Ag）、糖类抗原125(CA125)、癌胚抗原（CEA）]及外周血淋巴细胞亚群水平。结果 观察组患者客观缓解率、疾病控制率均高于对照组,差异均有统计学意义（P﹤0.05）。观察组患者中性粒细胞减少、血小板减少、贫血、甲状腺功能异常、肝肾功能减退发生率均低于对照组,差异均有统计学意义（P﹤0.05）。治疗后,两组患者CD3+、CD4+水平及CD4+/CD8+均高于本组治疗前,CD8+水平均低于本组治疗前,且观察组患者CD3+、CD4+水平及CD4+/CD8+均高于对照组,CD8+水平低于对照组,差异均有统计学意义（P﹤0.05）。治疗后,两组患者CYFRA21-1、SCC-Ag、CA125、CEA水平均低于本...     

大豆异黄酮在不同的雌激素环境下对MMTV-erbB-2转基因小鼠的作用

目的 观察大豆异黄酮在不同的雌激素环境下,对MMTV-erbB-2转基因小鼠的乳腺肿瘤发生及发展的影响.方法 选取鼠龄5周的健康MMTV-erbB-2转基因雌性小鼠150只,分为对照组、低雌激素组1、低雌激素组2、高雌激素组1和高雌激素组2五组,观察各组小鼠乳腺癌的发病率和潜伏期,并采用免疫组织化学染色SP法检测各组小鼠乳腺组织中雌激素受体(ER)、孕激素受体(PR)、增殖细胞核抗原(PCNA)的表达.结果 对照组、低雌激素组1、低雌激素组2、高雌激素组1和高雌激素组2的乳腺癌发病率分别为73.3%、96.7%、30.3%、40.0%和83.3%,对照组与高雌激素组2、低雌激素组1与高雌激素组2发病率比较差异无统计学意义(P＞0.05),其他各组间比较差异有统计学意义(P＜0.05).各组小鼠乳腺癌平均潜伏期比较差异无统计学意义(P＞0.05).低雌激素组1的TEB数量与其他各组比较差异有统计学意义(P＜0.05).erbB-2表达在各组之间表达差异无统计学意义(P＞0.05).低雌激素组1、低雌激素组2、高雌激素组1和高雌激素组2与对照组乳腺ER和PR的表达比较差异无统计学意义(P＞0.05).低雌激素组1实验小鼠发生肿瘤的乳腺组织内PCNA的表达明显高于其他各组(P＜0.05).对照组与高雌激素组2,低雌激素组1与高雌激素组2比较差异有统计学意义(P＜0.05),其他各组间比较差异有统计学意义(P＜0.05).结论 大豆异黄酮在不同的雌激素环境下,对MMTV-erbB-2转基因小鼠乳腺肿瘤的发生及发展起不同的作用.低雌激素环境下大豆异黄酮可促进乳腺肿瘤的发生及发展,高雌激素环境下大豆异黄酮可抑制乳腺肿瘤的发生及发展.

Abstract：

Objective To investigate the effect of the soybean isoflavones at different estrogen environments on the pathogenesis of breast cancer in MMTV-erbB-2 transgenic mice. Methods 150 fiveweek-old MMTV-erbB-2 transgenic female mice were phosen and divided into five groups; control group,low estrogen group 1, low estrogen group 2, high estrogen group 1 and high estrogen group 2. The incidence and latent period of breast cancer were observed, and the expression of estrogen receptor (ER) ,progesterone receptor (PR), and proliferating cell nuclear antigen (PCNA) proteins was detected by using immunohistochemistry SP method. Results The incidence of breast cancer in control group, low estrogen group 1, low estrogen group 2, high estrogen group 1 and high estrogen group 2 was 73. 3% , 96. 7% ,30. 3% , 40. 0% and 83. 3% , respectively, with the difference being not significant between control group and high estrogen group 2, and between low estrogen group 1 and high estrogen group 2 (P ＞ 0. 05 ) , but with the difference being significant among the other groups (P ＜ 0. 05 ). There was significant difference in the average latent period of breast cancer among all groups (P ＞ 0. 05 ). There was significant difference in the number of TEB between low-estrogen group 1 and other groups (P ＜ 0.05). There was significant difference in the erbB-2 expression among the groups ( P ＞ 0. 05 ). There was no significant difference in the expression of breast ER and PR between control group and other groups ( P ＞ 0. 05 ). The PCNA expression in breast tumor tissue in low-estrogen group 1 was significantly higher than other groups (P ＜0. 05) , and there was significant difference in the PCNA expression between control group and high estrogen group 2, between low estrogen group 1 and high estrogen group 2 (P ＜ 0. 05). Conclusion The soybean isoflavones at different estrogen environments play different roles in the occurrence and development of MMTV-erbb-2 transgenic mouse mammary tumor. In the context of low estrogen, soybean isoflavones could even promote breast cancer formation and development. In the context of high estrogen, soybean isoflavones could inhibit breast cancer and development.     

基质金属蛋白酶抑制剂-2在贲门癌患者血清和肿瘤组织中的表达及其临床意义

我们应用酶联吸附免疫和免疫组织化学染色分别检测了40例贲门癌患者的术前血清和术后标本中基质金属蛋白酶抑制剂(TIMP)-2的表达,探讨TIMP-2在贲门癌发生发展中的作用,以及TIMP-2在术前血清和术后标本中表达的关系.     

珠海市金湾区已婚非绝经期女性经阴道妇科超声筛查结果分析

目的 分析珠海市金湾区已婚非绝经期女性妇科疾病患病情况及其影响因素,为疾病早期诊断、预防和治疗提供参考.方法 以珠海市金湾区户籍已婚的非孕期非哺乳期非绝经期女性为研究对象进行经阴道妇科超声筛查并收集其人口学信息及生育情况,采用描述流行病学分析方法 进行分析,并采用单、多因素分析方法 对妇科疾病影响因素进行分析.结果 本...     

心肌梗死后移植骨髓间充质干细胞后全身细胞的分布

Objective To study the systemic distribution of bone marrow derived mesenchymal stem cells (MSCs) 24 h and 2 weeks after cell injection into the border zone of myocardial infarction area. Methods MSCs from male SD rats were labeled with Bromodeoxyuridine (BrdU). Three weeks after in-duction of myocardial infarction,female SD rats were randomized into 2 groups. Labeled cells (3 × 10 ,50 μl) were injected into the border zone of infarcted area in the one group (n = 12) ,and PBS of equal vol-ume was injected into the border zone of infarcted area in the other group ( n = 8 ). The systemic distribu-tion of MSCs was evaluated through real-time PCR and immunohistochemistry at time points of 24 h and 2 weeks after injection, respectively. Results Cells injected into border zone of infarcted area were distribu-ted to extra-cardiac organs such as spleen,lung and liver. Twenty-four h after injection,cells mainly con-centrated in the heart (467 467 ± 191 387) ,while obvious cell loss was noted in all organs including the heart ( 112 388 ±43 751 ) 2 weeks after injection. Of immunostaining were consistent with those of real-time PCR. Conclusion After injected into the border zone of infarcted area, MSCs mainly gathered in the heart with distributions into spleen, lung, and liver. However, substantial number of cells lost with pro-longed time span.     

大豆异黄酮在低雌激素环境下对MMTV-erbB-2转基因小鼠的作用

目的探讨大豆异黄酮在低雌激素环境下对MMTV-erbB-2转基因小鼠乳腺肿瘤发生、发展的影响。方法 MMTV-erbB-2转基因雌性小鼠90只,分为3组,每组30只。60只行卵巢摘除术使MMTV-erbB-2转基因小鼠体内形成低雌激素环境,分别使用含大豆异黄酮饲料(大豆异黄酮组)和普通饲料(普通饲料组)喂养。另30只为对照组,用普通饲料喂养。观察乳腺肿瘤的潜伏期及发生情况,用免疫组织化学法观察各组乳腺组织的雌激素受体、孕激素受体、增殖细胞核抗原的表达情况。结果大豆异黄酮组肿瘤潜伏期较其他2组明显缩短,增殖细胞核抗原表达水平较其他2组高(P<0.05)。3组雌激素受体、孕激素受体表达情况比较差异无统计学意义(P>0.05)。结论在低雌激素环境下,大豆异黄酮对MMTV-erbB-2转基因小鼠乳腺肿瘤的发生、发展起促进作用。     

DC-CIK细胞免疫治疗恶性肿瘤中不良反应的预防及护理

以肿瘤免疫治疗为核心的生物治疗已成为继手术、放疗、化疗后的第4种治疗模式,近年来显示出良好的临床应用前景。树突状细胞(DC)是目前发现功能最强的抗原提呈细胞,可有效激发T细胞应     

植物雌激素干预乳腺癌的研究进展

以大豆异黄酮为代表的植物雌激素是一种广泛存在于植物中、与雌激素结构相似的生物活性物质。特别是大豆异黄酮在预防和治疗肿瘤、心血管疾病、骨质疏松、老年性痴呆和更年期疾病等方面的研究受到广泛重视,而其与乳腺癌发生、发展的关系更是成为研究的焦点。本文就大豆异黄酮的分类、代谢和抗乳腺癌作用机制以及与乳腺癌的流行病学、动物实验、人群干预等方面的研究进展情况作一综述。