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紫外线照射前后日本血吸虫尾蚴可溶性虫体蛋白组分的比较 总被引:3,自引:0,他引:3
目的利用蛋白质组学技术分离、鉴定日本血吸虫正常尾蚴及紫外线致弱尾蚴虫体间差异表达蛋白。方法分别收集与制备血吸虫正常尾蚴和致弱尾蚴虫体总蛋白,经固相pH梯度双向凝胶电泳分离。凝胶银染并利用ImageMaster2DSoftware5.0凝胶图像分析软件进行比较分析,选取差异表达蛋白点经基质辅助激光解析离子飞行时间质谱仪进行鉴定。结果二维凝胶电泳图像分析结果显示:正常尾蚴和致弱尾蚴各分离出至少1277、1173个清晰、独立的蛋白点,蛋白点匹配率为72.7%,大多数蛋白点相对分子量处于22000~95000范围内,理论等电点为5~8。尾蚴经紫外线致弱前后共发现18个差异表达蛋白,其中5个蛋白于致弱尾蚴中表达消失,12个表达下调,1个表达增强,未见新增表达蛋白。其中13个差异表达蛋白经MALDI-TOF-MS鉴定分析,获悉其肽指纹图谱、理论等电点、分子量及表达水平变化等相关信息。结论利用二维电泳、MALDI-TOF-MS等蛋白质组学技术,共鉴定出13个致弱尾蚴差异表达蛋白,为进一步阐明致弱尾蚴诱导宿主产生高免疫保护力的分子机制提供了实验基础。 相似文献
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Prognostic significance of tumor necrosis in ovarian cancer patients treated with neoadjuvant chemotherapy and interval surgical debulking 总被引:1,自引:0,他引:1
T. LE P. SHAHRIARI L. HOPKINS W. FAUGHT† & M. FUNG KEE FUNG 《International journal of gynecological cancer》2006,16(3):986-990
The objective of this study was to study the significance of tumor necrosis documented at the time of interval surgical debulking after neoadjuvant chemotherapy. Retrospective chart reviews were carried out from 1997 to 2005 to identify ovarian cancer patients treated with neoadjuvant chemotherapy. Patients' demographics together with disease characteristics, treatment-related variables, and outcomes were recorded. Cox proportional hazard models were built to model time to progression using predictor variables such as age, cancer stage, tumor grade, residual disease, percentage change in CA125 level from baseline, and degree of necrosis in resected tumor specimens. One hundred one patients were included in the study. Optimal debulking was achieved in 74% of the patients. Cox regressions revealed three significant predictive variables of time to first progression: younger age (hazard ratio [HR] = 0.95, 95% CI 0.92-0.98, P= 0.004), residual disease (P= 0.048), and the absence/minimal tumor necrosis after three cycles of neoadjuvant chemotherapy (HR = 1.97, 95% CI 1.01-3.87, P= 0.048). The estimated median survival was 50.66 months (95% CI 46.12-55.20). The lack of or minimal tumor necrosis after neoadjuvant chemotherapy is an independent risk factor for recurrent disease. 相似文献
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R. NARASAKI Z. XU Z. LIANG L. C. W. FUNG D. DONAHUE F. J. CASTELLINO V. A. PLOPLIS 《Journal of thrombosis and haemostasis》2012,10(12):2618-2621
Narasaki R, Xu Z, Liang Z, Fung LCW, Donahue D, Castellino FJ, Ploplis VA. The vitronectin‐binding domain of plasminogen activator inhibitor‐1 plays an important functional role in lipopolysaccharide‐induced lethality in mice. J Thromb Haemost 2012; 10 : 2678–21. 相似文献
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K. P. FUNG MB BS MRCP DCH Senior Lecturer H. Y. S. Ngan MB BS MRCOG Senior Medical Officer .J. S. K. WOO MB BS MRCOG Senior Lecturer .T. W. WONG MB BS FACOM Senior Lecturer . 《Journal of paediatrics and child health》1988,24(3):184-185
Partial and multiple regression analysis was performed to find out the correlation between birthweight and maternal anthropometric variables. Pearson regression analysis revealed significant dependence of birthweight on gestation of pregnancy, maternal weight, symphysis-sternal distance and height, but not on armspan and skin thickness. However, the only maternal variable bearing significant influence on birthweight in partial regression analysis was bodyweight. The effects of maternal determinants on birthweight, though some of them were statistically significant, were clinically unimportant. 相似文献
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Real‐World Assessment of Acute Left Ventricular Lead Implant Success and Complication Rates: Results from the Attain Success Clinical Trial 下载免费PDF全文
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