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라선영,임승택,고명주,정현주,조남훈,최영득,조도연,이회영 연세대학교의과대학 2016 Yonsei medical journal Vol.57 No.4
Purpose: To examine the usefulness of various receptor tyrosine kinase expressions as prognostic markers and therapeutic targetsin muscle invasive urothelial cancer (UC) patients. Materials and Methods: We retrospectively analyzed the data of 98 patients with muscle invasive UC who underwent radical cystectomybetween 2005 and 2010 in Yonsei Cancer Center. Using formalin fixed paraffin embedded tissues of primary tumors, immunohistochemicalstaining was done for human epidermal growth factor receptor 2 (HER2), fibroblast growth factor receptor 1 (FGFR1), and fibroblast growth factor receptor 3 (FGFR3). Results: There were 41 (41.8%), 44 (44.9%), and 14 (14.2%) patients who have over-expressed HER2, FGFR1, and FGFR3, respectively. In univariate analysis, significantly shorter median time to recurrence (TTR) (12.9 months vs. 49.0 months; p=0.008) and overall survival (OS) (22.3 months vs. 52.7 months; p=0.006) was found in patients with FGFR1 overexpression. By contrast, there was no difference in TTR or OS according to the HER2 and FGFR3 expression status. FGFR1 remained as a significant prognostic factor for OS with hazard ratio of 2.23 (95% confidence interval: 1.27–3.90, p=0.006) in multivariate analysis. Conclusion: Our result showed that FGFR1 expression, but not FGFR3, is an adverse prognostic factor in muscle invasive UC patientsafter radical cystectomy. FGFR1 might be feasible for prognosis prediction and a potential therapeutic target after thorough validation in muscle invasive UC.
알레르기 질환 환자에서 고양이털 항원에 대한 감작을 및 고양이털의 항원성에 관한 연구
라선영(Sun Young Rha),남동호(Dong Ho Nam),김범수(Bum Soo Kim),안중배(Joong Bae Ahn),원욱희(Wook Hee Won),송현용(Hyun Yong Song),조홍근(Hong Keun Cho),전동운(Dong Woon Jun),홍천수(Chein Soo Hong) 대한내과학회 1995 대한내과학회지 Vol.48 No.3
N/A Objectives: The cat fur allergen used in skin prick test was known to be contaminated with housedust mites. So we intended to evaluate the clinical importance of cat fur as a causative allergen in patients with allergic diseases. Methods: We performed skin prick tests with cat allergen of Torii company(Japan), Bencard company (England) and home made extracts in 387 patients, We detected specific IgE by 3M FAST-plus and ELISA method using home made cat fur allergen, developed at this class. To characterize the allergenic components, cat fur extracts were fractionated by 12 % sodium dodecyl sulfate polyacrylamide gel electrophoresis(SDS-PAGE) and then transferred onto nitrocellulose membrane and probed with sera of cat fur sensitive patients Results: 1) Out of 387 patients, 77(19.9%) showed more than 1+results on skin prick test. There were no significant differences in the rates of positive results ac- cording to the allergic diseases, but the age groups were correlated with the positive results(younger than 30: 34.5%, between 30 and 50: 14.4%, older than 50: 6.8%). 2) Cat ELISA showed specific inhibition to cat fur allergen and Cat ELISA inhibition test revealed the linear dose response curve on the added amounts of cat allergn into pooled sera. 67.7% out of Torii cat fur sensitive patients(A/H ratio≥1) showed positive results in Cat ELISA for specific IgE antibody. 3) Cat fur extracts showed 15 protein bands by SDS-PAGE, then they were transferred onto nitrocellulose membrane and probed with sera of 16 cat-fur sensitive patients, one sera pool of patients with RAST class 3, and three negative controls and with biotin-conjugated anti IgE-avidin peroxidase. Six IgE binding protein bands were detected at 94, 73, 56, 44, 28 and 21 kilodalton of molecular weight. Out of six IgE binding bands, MW 21KD concerned as major cat allergen, Fel d 1, were noted in five sera(31.3% ). Conclusion: It is suggested that cat fur can be regarded as an important allergenic fur and that we need further studies to st.andardize cat antigens for in vivo and in vitro tests.
임인애,라선영 대한의사협회 2010 대한의사협회지 Vol.53 No.9
Based on recently developed biotechnology, many new drugs have been developed for improving patient treatment outcomes. To develop novel drugs, proper clinical trials are essential. As clinical trials involve humans in research, the protection of participants is important not only for the participants’safety but also for future patients. Ethics in a clinical trial is not the same as in clinical practice with enough evidence. Hence, the whole procedure of a clinical trial should be well organized, scientifically and ethically planned, and monitored properly by an Institutional Review Board (IRB). Here the importance of ethics in clinical trials, related issues, and the monitoring system will be discussed.