1.Analysis of clinical features and prognostic factors of 512 cases with kidney clear cell renal carcinoma
Lingxiang LIU ; Yuan YUAN ; Wen GAO ; Yang WANG ; Yizhi ZHU
Chinese Journal of Primary Medicine and Pharmacy 2015;(23):3546-3548
Objective To evaluate the clinical diagnosis,treatment and prognostic factors of kidney clear cell renal carcinoma(KIRC)in international sample database.Methods From 1998 to 2012,consecutive patients with KIRC who diagnosed and treated in TCGA organizations were enrolled.Clinical characteristics,objective response and survival time were evaluated,and correlation analysis with lncRNA urothelial cancer associated 1 (UCA1)gene was performed.Results 512 patients with KIRC were enrolled.35.4% of patients were female,59.6% of stage Ⅰ -Ⅱ, 90.0% of white and 45.1% of grade 1 -2.Comprehensive treatment was consistent with the clinical guidelines. Significant correlation was found between UCA1 expression and 4 mRNA subtype,30 genes mRNA expression, mir -101 -1 expression and PBRM1 mutation.And patients with UCA1 overexpression could achieve poor prognosis. Conclusion Diagnosis and treatment of the international TCGA -KIRC research meets clinical guidelines.UCA1 overexpression is an important poor prognostic factor.Combined with the clinical relevance of other important driver genes,UCA1 may be significantly valuable for further study.
2.Biocompatibility of poly-D,L-lactic-co-glycolic acid/type-1 collagen/chitosan composite membrane as artificial spinal dura mater
Weihong ZHANG ; Wen YUAN ; Xinwei WANG ; Yang LIU ; Zhu HAN
Chinese Journal of Tissue Engineering Research 2008;12(41):8167-8170
BACKGROUND:Poly-D,L-lactic-co-glycolic acid (PLGA) that was characterized as absorbable,weak cytotoxicity,and adjustable hardness was ideal to be synthetized artificial spinal dura mater.Because of lacking of functional group at the surface of PLGA,it should be modified to fit the demand of satisfied biocompatibility.OBJECTIVE:To study the biocompatibility of PLGA membrane modified by type-Ⅰ collagen and chitosan.DESIGN,TIME AND SETTING:Contrast observation study,which was carded out in the Biochemistry and Molecular Biology Laboratory Shanghai University of Traditional Chinese Medicine from May to December 2007.MATERIALS:Porous PLGA membrane was provided by Jinan Banzheng Biology-Technology Co.,Ltd.,type-Ⅰ collagen by Sigma Company,USA,chitosan by Shanghai Qisheng Biological Agent Medical Apparatus and Instrument Company,and L929 L cell by Cellular Institute of Shanghai Academy of Life Science,Chinese Academy of Science.METHODS:PLGA membrane (P membrane),PLGA/type-Ⅰ collagen composite membrane (PG membrane),PLGA/type-Ⅰ collagen/chitosan (9:1) composite membrane (PGC 9:1 membrane) and PLGA/type-Ⅰ collagen/chitosan (5:5) composite membrane (PGC 5:5 membrane) were produced through a certain process.MAIN OUTCOME MEASURES:Contact angle,absorption rate and cytotoxicity were tested.Morphological changes of L929 L cell cultured for 1,3,and 7 days were observed under fiberscope.RESULTS:Contact angle was shown as PG membrane<PGC 9:1 membrane<PGC 5:5 membrane<P membrane (P<0.01 );absorption rate was shown as P membrane<PGC 5:5 membrane<PGC 9:1 membrane<PG membrane (P<0.01).L929 L cell was characterized as well distribution,expansion and appearance after inoculation of PG membrane,PGC 9:1 membrane and PGC 5:5 membrane.Cytotoxic experiment (MTT methods) showed that,on the 1st day,there was no significant difference in absorbency among groups (P>0.05).On the 3rd and 7th days,there were significant differences between P membrane and PG membrane or PGC 9:1 membrane,and between PGC 9:1 membrane and PCK2 5:5 membrane (P<0.05).PGC 9:1 membrane could further improve cell adhesion and proliferation,and PGC 5:5 membrane could inhibit cell proliferation and differentiation.CONCLUSION:Type-Ⅰ collagen and chitosan appended to the exterior of PLGA can enhance the biocompatibility of membrane.In terms of biocompatibility,PLGA/type-Ⅰ collagen/chitosan (9:1) composite membrane can be fit to the qualification as a type of material of artificial spinal dura mater.
3.The expressions of Sema4D and HER-2 proteins in breast cancers and their clinical significance
Xiaowu XU ; Xiaomin YANG ; Yuan XU ; Shaojun ZHU ; Pinnan ZHANG
Journal of Chinese Physician 2012;14(8):1017-1021
Objective To investigate the expressions of Sema4D and HER-2 in breast cancers and their relationship with microlymphtic vessel density (MLVD).Methods MLVD and expressions of Sema4D and HER-2 were detected in 110 cases of breast cancer tissues by immunohistochemistry.The relationship of Sema4D and HER-2 expressions with clinicopathologic parameters was analyzed.Results The positive expression rate of Sema4D and HER-2 was 71.82% (79/110) and 33.64% (37/110),respectively,with a statistically significant differences compared to those in the control group ( P <0.01 ).The positive expression rates of Sema4D and MLVD in cases with lymphatic metastasis were higher than that without lymphatic metastasis ( P < 0.01 ).The expressions of Sema4D and HER-2 were closely correlated with the histological grade,TNM stage,lymph node metastasis,and expression of ER of breast cancers ( P <0.05),but were not related to tumor size and expression of PR (P > 0.05 ).On univariate analysis,the disease-free survival rate of patients with Sema4D positive expression was better than those with its negative expression ( P < 0.05).Sema4D expression was positively correlated with the HER-2 expression ( r =0.535,P < 0.01 ).Conclusions Sema4D may play important roles in the carcinogenesis and development of a breast cancer.
4.Preliminary studies on establishment of indicator system to evaluate basic capacities of trainers of training for community general practitioners in Shanghai
Yuan ZHANG ; Hua YANG ; Tianhao WANG ; Shanzhu ZHU
Chinese Journal of General Practitioners 2011;10(4):232-236
Objective To explore establishment of indicator system to evaluate basic capacities of trainers of training for community general practitioners (GPs) to standardize their capacity building and management.Methods Questionnaire survey was conducted among 190 trainers of training for community health managers and GPs who were involved in community health-care and health-care service management in 12 districts of Shanghai to investigate what basic capacities the trainers should have.Delphi expert consultation method was used to construct an evaluation indicator system.Firstly, an evaluation form was formulated based on the preceding questionnaire.Then, two rounds of expert consultation were carried out with 28 experts specialized in general practice, training for GPs, public health and health management.The last step was to set up an evaluation indicator system based on experts' opinions with statistical analysis.Results The newly-established system consisted of five first-grade indicators including comprehensive performance, capacities and personal willingness, background of education and career, personal potential for professional development, capacity in general practice and capacity in training for GPs, and 57 second-grade indicators.Activity coefficient of the experts was all 100%, authority coefficients of the experts were 0.85,and harmonious coefficient of importance of the evaluation was 0.190 and 0.225 ( all P < 0.01 ),respectively, in two rounds of Delphi consultation.Conclusions The preliminarily established indicator system to evaluate capacities of trainers of training for community GPs in diverse aspects can be used as reference for quality critria in selection of trainers of training for community GPs.
5.Study on Detection Value of Platelet Activation Indexes and Platelet Parameters in Patients with Hepatitis B-induced Cirrhosis
Zhiquan ZHU ; Guanghong GUO ; Xinhong YUAN ; Wenhai YANG ; Hua YAN
Progress in Modern Biomedicine 2017;17(24):4688-4690,4797
Objective:To study the detection value of platelet activation indexes and platelet parameters in patients with hepatitis B-induced cirrhosis.Methods:40 patients with hepatitis B-induced cirrhosis in our hospital from November 2015 to August 2016 were selected as the observation group.40 healthy subjects went through physical examination during the same period were chosen as the control group.The platelet activation indexes and platelet parameters of subjects with same age in two groups were detected and compared.The detection results of the two items in patients with different stages of hepatitis B-induced cirrhosis were compared,too.Results:The PLT of observation group was lower than that of control group,while the other platelet parameters and platelet activation indexes were all higher than those of control group.The detection results of two items in patients with different stages of hepatitis B-induced cirrhosis were with significant differences,all P<0.05.Conclusion:The platelet activation indexes and platelet parameters in patients with hepatitis B-induced cirrhosis are obviously abnormally expressed.There are significant differences among the detection results in patients with different stages.Therefore,surveillance of those indexes in patients with hepatitis B-induced cirrhosis should be strengthened.
6.Effects of HMGA1 silence by RNA interference on the apoptosis and cell cycle of hepatocarcinoma cells
Mingguang ZHU ; Xin ZHANG ; Hongyan YUAN ; Wei YANG ; Yaping CHANG
Chinese Journal of Immunology 2001;0(07):-
Objective:To develop HMGA1-silencing SMMC-7721 cell and investigate its impacts on apoptosis and cell cycle in tumor cells.Methods:Constructing HMGA1-silencing SMMC-7721 cell through G418 selection of RNAi plasmid transfected cells;surveying the apoptosis,prliferation and cell cycle of the tumor cells by FACS and MTT.Results:Stable HMGA1-silencing cells were obtained successfully.The apoptosis percentage in RNAi group(29.46?3.04%) was significantly higher than that in the negative control (1.96?0.76%) or control (2.04?0.70%)within each P
7.The study of malignant transformation of NIH3T3 cells induced by transfection of HMGA1 gene
Xin ZHANG ; Mingguang ZHU ; Hongyan YUAN ; Wei YANG ; Yaping CHANG
Chinese Journal of Immunology 1985;0(05):-
Objective:To establish a mouse fibroblastic cell line stably transfected with HMGA1 gene,and to use the cell line to investigate the role of HMGA1 in tumor development and progression.Methods:Eukaryotic expression vector pcDNA3.0-HMGA1 was transfected into NIH3T3 by lipofectamine-mediation.Stable transfectants were selected by G418.The expression of extraneous HMGA1 gene was analyzed by RT-PCR and DNA sequencing.Cell growth was measured through MTT and the cell cycle by FCM.Soft agar colony formation was employed to analyze the ability of anchorage-independent growth.The expression of the immune inhibition factors of VEGF and FasL mRNA was detected by RT-PCR.Results:NIH3T3 cell lines stably expressing HMGA1 gene were successfully established.Comparing with controls,the HMGA1 gene-transfected cells grew faster,acquired the ability of anchorage-independent growth and expressed the immune inhibition factors of VEGF and FasL mRNA.Conclusion:Extraneous expression of HMGA1 gene can induce malignant transformation of NIH3T3 and modulate mRNA expression of immune inhibition factors.HMGA1 gene plays a key role in tumor development,progression and immune escape.
8.Effect of postural drainage assisting trachea suction on meconium aspiration syndrome
Jinqiong SU ; Xiaoyu ZHU ; Chuanzhong YANG ; Shixin YUAN
Chinese Pediatric Emergency Medicine 2010;17(5):421-423
Objective To evaluate the effect of postural drainage assisting trachea suction on meconium aspiration syndrome. Methods Total 61 cases of asphyxia neonates with MAS who were born in our hospital from Jan,2007 to Dec,2008, were divided into control group (24 cases) and observing group( 37 cases). The neonates in control group had endotracheal suction directly after intubation. But the infant in observing group was treated with endotracheal suction after postural drainage. The amount of suction from endotracheal tube,the complication of MAS and the outcome of these newborns were evaluated. Results The total amount of meconium drainage from endotrachea in observing group was statistics significantly more than that in control group [( 2. 16 ± 1.82) ml vs ( 1.23 ± 0. 97 ) ml, P < 0. 05 )]; The intubating times in observing group were statistical significantly less than that in control group[( 1.19 ± 0. 46) vs ( 1.79 ± 0. 83 ) times, P <0. 01 ). The incidence of complication in observing group was 8. 11% ,which was significantly lower than that in control group(29. 17% ,P <0. 05). There were shorter needing oxygen time [(21.30 ± 22. 38) h vs (52. 91 ±39. 20) h,P <0. 01]and shorter hospitalization days [(9. 24 ±3.94) d vs ( 14. 39 ±6. 49) d,P <0.01 )]in observing group than those in control group respectively. The mortality in control group was 4. 17%, and no death occurred in observing group. Apgar scores of the first minute was similar in both groups ( P > 0. 05 ). But there was significant difference(70. 16% vs 58. 34% ,respectively;P <0. 05) in the fifth minute Apgar scoring of 8 ~ 10 scores between the observing group and the control group. Conclusion Postural drainage assisting endotracheal suction may remove meconium in trachea effectively, decrease the complications of MAS and shorten the oxygen days and hospitalization time.
9.Immunomodulation of paecilomyces cicadidae polysaccharides on immune function of rats
Jiezuan YANG ; Liqin JIN ; Jianxin L ; Qian YUAN ; Ta ZHU
Chinese Journal of Pathophysiology 1986;0(03):-
AIM: To explore the immunomodulatory effect of paecilomyces cicadidae polysaccharides (PCPS).METHODS: Subcutaneous injection with 50, l00, 200 mg/kg of PCPS were given in the back of the rats everyday for l5 days. The number of white blood cells (WBC) was counted. The activities of acid phosphatase (ACP) and lactase dehydrogenase (LDH)in liver, kidney, spleen and thymus were detected by automatic biochemistry analyzer. The ability of devouring neutral red and activity of ACP, LDH, arginase in alveolar macrophages were also detected. The body weight of the rat everyday during experiment and weight of the spleen and thymus after the rats were killed were measured and wet weight index was calculated.RESULTS: The wet weight index of spleen and thymus, the activity of ACP, LDH, arginase and ability of devouring neutral red in alveolar macrophages in the test group treated with PCPS were significantly higher than those in control group. CONCLUSION: PCPS shows a significant immunomodulatory effect with the increasing counts of WBC and activation of alveolar macrophages in a dose-dependent manner.
10.Effect of L-arginine on arrhythmia induced by ischemia/reperfusion of right coronary artery in rabbits
Qingzhi WANG ; Xiaoqian ZHU ; Yan LI ; Haozhuang YANG ; Lin YUAN
Chinese Journal of Pathophysiology 1989;0(06):-
AIM: To explore the effect of L-arginine (L-Arg) on the arrhythmia induced by ischemia/reperfusion (IR) of the right coronary artery in rabbits. METHODS: 48 healthy adult rabbits were divided into 4 groups (n=12 of each) randomly: IRa group (120 min reperfusion after 30 min ischemia), IRb group (120 min reperfusion after 120 min ischemia), IRa+L-Arg group and IRb+L-Arg group. I/R model was established by occluding and loosening the root of the right coronary artery in rabbits. The changes of ECG and arrhythmia were recorded and graded. RESULTS: ① The longer time of IR was, the higher the score of the arrhythmia was found. The incidence of atrial-ventricular block (AVB), sinus-atrial block (SAB), even sinus arrest were detected and aggravated gradually. ② The incidence of AVB was decreased and from Ⅲ?→Ⅱ?→Ⅰ? markedly, some of sinus and atrial arrhythmia were transformed into sinus rhythm gradually, and all of the arrhythmia scores in IRa group were decreased significantly as compared with the same time phases of IRb group (P