重度子痫前期剖宫产产妇围术期液体治疗后的血液动力学变化

目的 研究重度子痫前期剖宫产产妇围术期中心静脉压（CVP）和动脉血压监测（ART）等血液动力学的变化,探讨围术期液体治疗的合理性和安全性.方法 选择重度子痫前期择期行剖宫产术的产妇40例,将其分为晶体组和胶体组,每组各20例,麻醉前给予晶体组乳酸林格液,给予胶体组6％羟乙基淀粉酶,均给予麻醉下行剖宫产术,监测麻醉前后两组患者的CVP值、ART及生命体征.结果 麻醉前,两组的CVP与麻醉后5、10 min时相比,差异均有统计学意义（均P＜ 0.05）;麻醉后10 min,胶体组CVP高于晶体组[（4.7±0.5）mm Hg比（5.3±0.5）mm Hg]（P＜ 0.05）;胶体组的ART高于晶体组[（115.0±13.5）mm Hg比（100.0±10.8）mm Hg,P＜0.05].结论 重度子痫前期剖宫产妇围术期,容量负荷的变化主要是麻醉后至胎儿娩出前,围术期液体治疗可以保障术中循环稳定,胶体液的应用是安全有效的,可适当应用于子痫前期患者,对围术期容量负荷的影响不大,对维持重度子痫前期患者围术期循环稳定有积极作用.     

小鼠胃内和皮内接种BCG免疫后抗结核细胞免疫的比较

目的:为比较小鼠胃内与皮内接种BCG后,机体产生抗结核杆菌的细胞免疫.方法:分别于小鼠胃内、皮内免疫接种BCG的第60、90天,检测小鼠脾淋巴细胞受到PPD刺激后转化率、小鼠脾淋巴细胞受到PPD刺激后IL-2表达量.结果:淋巴细胞的转化率分别为31.30%,37.90%(与皮内接种无显著性差异,与未免疫组有显著性差异);脾淋巴细胞IL-2表达量分别为37.47±5.60(U/ml),39.41±7.73(U/ml)(与皮内接种无显著性差异,与未免疫组有显著性差异).结论:胃内接种BCG可以产生与皮内接种相近的抗结核细胞免疫.     

ATP结合盒转运子A1调控载脂蛋白M表达的通路

目的研究人肝癌细胞株HepG2中ATP结合盒转运子A1（ABCA1）是否通过肝受体同系物（LRH1）调节载脂蛋白M（apoM）的表达。方法分别用肝X受体激动剂GW3965或ABCA1阻滞剂DIDS作用于HepG2,应用RT-PCR法检测ABCA1、LRH1、apoM及apoAI的mRNA水平。结果与DMSO组比较,GW3965能显著增加ABCA1mRNA的表达（P〈0.01）,且呈剂量依赖性下调LRH1（P〈0.01）,但apoM和apoAI mRNA水平无明显变化（P〉0.05）;与GW3965单独作用组比较,GW3965与DIDS联合用药组apoM与apoAI的基因表达均明显下调（P〈0.05）,但ABCA1和LRH1水平均无明显变化（P〉0.05）。结论 ABCA1不通过LRH1调节apoM的表达。     

载脂蛋白M对肾癌细胞增殖、迁移与侵袭的抑制作用

目的:研究人载脂蛋白M(apolipoprotein M,ApoM)对肾透明细胞癌细胞株(ACHN、769-P和786-O)增殖、迁移和侵袭能力的影响.方法:采用装载人ApoM基因的慢病毒和阴性对照组慢病毒分别感染肾癌细胞株,建立ApoM过表达组(ApoM-OE组)和阴性对照组(NC组)细胞模型.应用CCK-8增殖实验...     

人锌指蛋白23在原发性肝细胞肝癌中的表达及临床意义

Objective To detect the expression level of human zinc finger 23 (ZNF23) in hepatocellular carcinoma tissue samples and HepG2 cell lines and investigate the relationship between hZNF23 expression and clinicopathological characteristics of HCC and cell apoptosis. Methods The expression levels of hZNF23 and GAPDH mRNA in 37 cases of HCC were measured by real-time RT-PCR. The association between the expression of hZNF23 and the clinicopathological characteristics of HCC was analyzed. Cultured HepG2 cells were divided into 4 groups ( control group, 1.25 μg/ml , 2.5 μg/ml and 5 μg/ml cisplatin)or 6 groups( control group, 1.25 μg/ml, 2.5 μg/ml, 5 μg/ml, 10 μg/ml and 20 μg/ml cisplatin). MTT method was employed to evaluate cell proliferation. Annexin V-FITC assay was used to assess percentage of apoptotic HepG2 cells. The expression levels of hZNF23 and GAPDH mRNA of HepG2 cells after apoptosis induced by cisplatin with a series of concentrations were measured by real-time RT-PCR.Results The median ( quartile1, quartile 3) expression levels of hZNF23 mRNA in 37 HCC tissue samples and adjacent tissue samples were 8.84 (3.59-15.05), 22.20 ( 13.85-42.90 ), respectively. There was significant difference ( U = 259.5, P ＜ 0.01 ). The median ( quartile1, quartile 3 ) expression levels of hZNF23 mRNA in cancer tissue samples with Edmondson stage Ⅰ + Ⅱ [12.80(4.80-19.50)] was much higher than those in stage Ⅲ + Ⅳ [5.01 ( 2.88-11.68 ), U = 99.00, P ＜ 0.05] The median ( quartile1,quartile 3 ) expression levels of hZNF23 mRNA in patients with and without hepatic cirrhosis were 9.92(3.80-15.25) , 3.21 (2.78-3.60), respectively. The median ( quartile1, quartile 3 ) expression levels of hZNF23 mRNA in HBV infection and non-infection patients was 9.09(3.72-15.25 ), 2.48 (1.79-12.10),respectively. There was no significant difference between groups with and without hepatic cirrhosis and between HBV infection and non-infection groups( U = 16. 00 and 24.00, P ＞0.05 ). MTT assay indicated that cisplatin significantly inhibited HepG2 cells proliferation in a dose-dependent manner. Annexin V-FITC/PI assay showed that HepG2 cells apoptosis rates were (0.9 ± 0.2 ) %, ( 4. 2 ± 0.3 ) %, ( 9.8 ± 4. 3 ) %,(23.0 ± 6.0)%, respectively. Cisplatin significantly induced HepG2 cells apoptosis in a dose-dependent manner( F = 27.89, P ＜ 0.01 ). The expression levels of hZNF23 mRNA in cisplatin groups [( 10.39 ±3.08) × 10-5, (24.10 ± 2.09) × 10-5, (6.90 ± 2.24) × 10-4] were significantly lower than that of the controlgroup[(94.80±1.80) ×10-5, F=6.027, P＜0.01]. Conclusions The expression level hZNF23 mRNA is related to Edmondson stage of HCC. The apoptosis effect of cisplatin on HepG2 cells may be associated with the upregulation of hZNF23.     

非小细胞肺癌中基质金属蛋白酶-10的表达

目的:探讨非小细胞肺癌(non-small cell lung cancer, NSCLC)中基质金属蛋白酶-10(matrix metalloproteinase-10,MMP-10)的表达及其与临床参数间的关系.方法:使用RT-PCR法及免疫组化法,检测32对NSCLC癌组织及癌旁正常组织中MMP-10的表达水平,并分析其与性别、年龄、分期、分级、肿瘤大小、淋巴结转移及病理类型之间的相关性.结果:MMP-10 的表达在mRNA水平与蛋白质水平表达有差异:MMP-10 mRNA在NSCLC癌组织中的表达要显著低于癌旁正常肺组织(P＜0.05),MMP-10蛋白在肺癌癌组织中的表达要显著高于癌旁正常肺组织(P＜0.01);在NSCLC癌组织中MMP-10 mRNA 的表达与MMP-10蛋白的表达呈正相关(r=0.4672, P＜0.05),而在癌旁正常肺组织中,两者表达相关性无显著统计学差异(r=-0.003022,P＞0.05).结论:MMP-10 mRNA在肺癌癌组织中表达要低于正常组织,MMP-10蛋白在肺癌癌组织中表达要高于正常组织.     

91例脾阳(气)虚证观察报告

脏象学说是祖国医学的理论核心,而“脾”又是脏象学说中的一个重要环节,因此运用现代科学技术和方法来阐明“脾”的实质,这在理论上和实践上都具有十分重要的意义。近年来,很多单位对中医“脾”的实质研究进行了大量的工作,有的从内分泌方面,有的从植物N系统功能方面,有的从免疫系统功能方面,有的则从补脾药的应用等方面进行研究。在兄弟单位的启发下,我们于1978年下半年开始了对“脾”的实质的     

测定氨咖黄敏胶囊中马来酸氯苯那敏含量的方法分析

目的:对测定氨咖黄敏胶囊中马来酸氯苯那敏含量方法进行分析探讨。方法:采取高效液相色谱法对氨咖黄敏胶囊中马来酸氯苯那敏含量进行测定,并在保证分离度条件下改变流动相有机成分和柱温,观察测定结果的变化情况。结果:随着柱温的不断增加,RSD值、r值等均未发生明显改变;随着乙腈比例的不断增加,RSD值不断增加,r值不断降低,出峰时间不断缩短。结论:控制柱温在30℃,乙腈比例增加至40%～45%时出峰时间短,且准确,为高效液相色谱法测定氨咖黄敏胶囊中马来酸氯苯那敏含量的最佳方案。