1.Lobectomy by video-assisted thoracoscopic surgery versus thoracotomy for clinical stage Ⅰ / Ⅱ non-small cell lung cancer: a multi-center comparative study
Xin ZANG ; Hui ZHAO ; Jun WANG
Chinese Journal of Thoracic and Cardiovascular Surgery 2014;30(5):285-289
Objective To compare safety,completeness and long-term results between lobectomy by video-assisted thoracoscopic surgery(VATS) and thoracotomy for clinical stage Ⅰ / Ⅱ non-small cell lung cancer(NSCLC).Methods Between July 2010 and December 2011,673 patients with clinical stage Ⅰ / Ⅱ NSCLC from 11 hospitals underwent pulmonary lobectomy(425 VATS,248 thoracotomy).Patients were matched by propensity score matoh method to create two comparable groups,402 patients remained eligible for analysis,with 201 patients in each group.Perioperative variables and follow-up results were compared between the two groups.Results Patients characteristics were comparable between the two groups,except for a slight lower preoperative FEV1,FEV1% and FEV1/FVC in the VATS group (P < 0.05).There was one postoperative death in each group.There was no significant difference in operative time,mediastinal lymph nodes stations/numbers dissected and postoperative drainage time between the two groups.The operative blood loss was lower in the VATS group(P < 0.001),the mean hospital stay was shorter in the VATS group(P < 0.001).Postoperative pneumonia/pulmonary atelectasis rate was lower in the VATS group than in the thoracotomy group (5.1% vs.10.4%,P < 0.05).Median follow-up time was 20 months in both groups.One-year and two-year recurrence-free survival was 90% vs.88% and 80% vs.70%,respectively(P =0.163).One-year and two-year overall survival were 96% vs.95% and 88% vs.85%,respectively(P =0.226).Conclusion For clinical stage Ⅰ / Ⅱ NSCLC,VATS lobectomy is a feasible procedure with shorter hospital stay and less complications,while its surgical and oncologic outcome is comparable to that of thoracotomy lobectomy.
3.Studies on Establishment of Co-expression System and Function of Human Complement Regulatory Proteins MCP and CD59
Li XU ; Zhou-Zhou ZHAO ; Hui LIU ; Wen-Xin LI ;
China Biotechnology 2006;0(09):-
Recombinant expression vector pcDNA3-MCPCD59DP containing human membrane complement regulatory proteins(hCRPs) MCP and CD59 cDNA was constructed successfully by using two independent promoters.After transfected into NIH3T3 cells with calcium phosphate-DNA precipitate method,NIH3T3 pcDNA3-MCPCD59-DP transfectants were obtained by G418 selection.Extraneous genes integration was identified by PCR.The co-expression of human CD59 and MCP at both mRNA and protein levels was confirmed by using RT-PCR and Western blot analysis.Human MCP and CD59 cDNA were integrated in NIH3T3 pcDNA3-MCPCD59-DP genomic DNA after continuous 30 times passages,indicating that NIH3T3 pcDNA3-MCPCD59-DP were stable cell lines.Human complement-mediated cytolysis assays showed that NIH3T3 cells transfected stably with pcDNA3-CD59,pcDNA3-MCP,and pcDNA3-MCPCD59-DP were protected from C-mediated damage and co-expressed human MCP and CD59 provided more excellent protection against C-mediated attack as compared with either CD59 or MCP expressed alone.The dicistronic vector represents an effective and efficacy strategy to overcome C-mediated damage and has potential therapeutic value for effectively controlling complement activation and finally for preventing hyperacute rejection in clinical gene therapy.
4.The Recent Advances in Halophilic Microorganisms for Environmental Bioremediation
Bai-Suo ZHAO ; Hui WANG ; Xin-Wei MAO ;
Microbiology 1992;0(06):-
As a result of various anthropogenic activities,natural saline environment polluted by contaminants and the environment polluted by both contaminants and salts frequently occur.In these saline environments,non-halophilic microorganisms have ineffective bioremediation,even lose the function of bioremediation.Halophilic microorganisms are able to thrive in high salt conditions.It is obvious that the halophilic degraders are more useful for the bioremediation of contaminated saline environments and may be potentially used in a wide of application.The objective of this review is to summarize the research progresses of halophiles in the biodegradation of petroleum hydrocarbons,aromatic hydrocarbon ramifications,and organophosphorous.
6.Quality control of statistical analysis in data management of clinical trials.
Xin-ji ZHANG ; Hao YU ; Zhao-hui WEI ; Jia HE
Acta Pharmaceutica Sinica 2015;50(11):1425-1427
Data is the basis and soul of clinical trials. To obtain accurate data, strict and standard data management is essential, which can be effectively supported by quality control in statistical analysis. In this paper, we briefly introduce the concept of the quality control in clinical trials, and describe its contents and methods. We hope that this work will be helpful to the application of statistical quality control in data management of clinical trials.
Clinical Trials as Topic
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standards
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Data Collection
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standards
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Quality Control
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Statistics as Topic
7.The Effect of Steam Sterilization on Cyclic Fatigue of Stainless Steel Files
Borui ZHAO ; Xin HU ; Hui WU ; Zhen CHEN ; Changyi LI
Tianjin Medical Journal 2014;(10):1037-1039
Objective Comparing the effects of steam sterilization on cyclic fatigue of stainless steel files. Meth-ods Fifty instruments of 25# stainless steel K files were randomly divided into 5 groups, which include 10 in each group. Group 1 was the blank control group, group 2 to 5 were subjected to 1, 3, 4, 5 steam sterilization cycles, then the files were tested by a custom-made device to assess cyclic fatigue and the number of cycles of failure (NCF) was calculated. Microstruc-ture of each file’s fracture surface was analyzed by Scanning Electron microscope (SEM). Results NCF in the 5 groups were 4 345.2 ± 384.2,3 937.9 ± 645.4,3 812.9 ± 532.5,3 626.2 ± 380.0,3 625.9 ± 565.6 respectively, and the differences among 5 groups were significantly different(F=2.598, P<0.05). After 4 or 5 times of steam sterilization, cyclic fatigue de-creased if compared with that in control group (P<0.05). Fracture surface in group 1 and group 2 was tough dimple structure and large numbers of regular, deep dimples were distributed on the surface. You could also see micro cavities clearly formed by fracture;Fracture surface in group 4 was dimple structure in brittle intergranular morphology. It is characterized by the presence of thin brittle precipitates, clean and smooth crystal interface, and a great sense of polyhedral stereo. Conclusion After 4 times of steam sterilization, cyclic fatigue strength of 25# stainless steel K files declined, which possessed the poten-tial risk of fracture.
8.Therapeutic Effects of Interferon-? and Polyresistin on Measles in Children
hui-xin, ZHAO ; li-ying, JIA ; li, DENG ; jie, DENG
Journal of Applied Clinical Pediatrics 2006;0(18):-
10-15 years were 7 cases(6.3%),they were randomly divided into treatment group and contol group.The treatment group with 60 patients were given INF-? and polyresistin,age 3 years,given IFN-? 200 000 U per day;and polyresistin 5 mg per time,3 times every day,the course of therapy were 5 days.The control group was given traditional Chinese medicine at the same time.Results After therapy,in treatment group,53 cases(88.3%) of children′s cooling time were lower than 5 days,47 cases(78.3%) of children′s rash subsided time were lower than 6 days,48 cases(75%) of children′s Catarrhal symptoms disappeared time were lower than 5 days,and the rate of complications′ occurrence were 15 cases(18.3%).In control group,28 cases(53.8%) of children′s cooling time were lower than 5 days,14 cases(26.9%) of children′s rash subsided time were lower than 6 days,28 cases(53.8%) of children′s Catarrhal symptoms disappeared time were lower than 5 days,and the rate of complications′ occurrence were 37 cases(71.5%),there were significant differences between both groups(Pa
9.Analysis of β-thalassemia mutations in Guangdong province
Yu-xin, CHU ; Xiao-chun, WANG ; Zhao-hui, HU
Chinese Journal of Endemiology 2010;29(2):162-166
Objective To investigate the prevalence and spectrum of β-thalassemia mutations in C, uangdong province, and provide a reference for prenatal diagnosis and genetic counseling in this population. Methods Three thousand two hundred and forty-seven blood samples were randomly selected from Guangzhou and 2984 blood samples from Shenzhen from January in 2005 to January in 2009. PCR and reverse dot blot hybridization (RDB) were adopted for detection of β-thalassemia mutations in Guangzhou and Shenzhen city. Results Seven hundred and fifty-one individuals in Guangzhou were found to have β-hemoglobin gene mutations, the detection rate was 23.13%(751/3247); 10 different mutations were identified, namely CD41-42(-TCTT), IVS-Ⅱ-654(C→T), -28(A→G), CDI7(A→T), CD71-72(+A), 13E, IVS-I-1(G→T), CD43(G→T), -29(A→G), CDI4-15(+G), which accounted for 42.53% (336/790) ,25.19% (199/790), 12.66% (100/790), 10.89% (86/790) ,3.29% (26/790), 2.15%(17/790), 1.27%( 10/790), 1.14%(9/790) ,0.51%(4/790) ,0.38%(3/790), respectively; the most common mutation was CD41-42(-TCTT), which accounted for 42.53%(336/790). In Shenzhen, 179 individuals were found to have β-thalassemia mutations, the detection rate was 6.00% (179/2984); 8 different mutations were identified excluding CD43 (G→T) and CD14-15 (+G); the most common mutation, however, was IVS-lI--654(C→T), which accounted for 40.44% (74/183). Conclusions The β-thalassemia mutations in Guangdong province are not only frequent, but also obviously heterogeneous, and the mutations differ from region to region. CD41-42 (-TCTT),ⅣS-Ⅱ-654(C→T), -28(A→G), CD17(A→T) were the 4 predominant mutations.
10.Analysis of stage and clinical pathological characteristics of invasive lobular carcinoma with the 8th AJCC Cancer Staging system
Hui HU ; Yang ZHAO ; Wei WEI ; Xin YI ; Yinhua LIU
International Journal of Surgery 2017;44(5):328-331
Objective To study the meaning of breast cancer staging system by AJCC eighth edition to invasive lobular carcinoma and analysis the clinical pathological characteristics.Methods According to the eighth edition of the AJCC staging to evaluate the TNM stage and prognosis evaluation of invasive lobular carcinoma cancer patient in Peking University Shenzhen Hospital from 2011 to 2016,and compared with others in clinical pathological data.Results There were 21 cases of invasive lobular carcinoma,accounting for 2.7% of all invasive breast cancer.We found that invasive lobular carcinoma shows no significant difference (P > 0.05) in ages,menstrual status,molecular features and anatomic staging and prognosis staging with others;histological grade were significantly different (P < 0.05).There were significant differences in the prognosis and staging of invasive lobular carcinoma.Conclusions Eighth AJCC staging systemn provides a new reference for the clinical treatment of breast cancer,should be evaluated with anatomic stage.Histological grade is relatively good in invasive lobular carcinoma and the prognosis is good,needs more research to the individualized treatment of invasive lobular carcinoma.