2.Sarcomatoid carcinoma of the urinary tract: clinical analysis of 16 cases.
Cheng ZHOU ; Li-Ping XIE ; Xiang-Yi ZHENG
Chinese Journal of Oncology 2011;33(8):634-635
Carcinoma, Renal Cell
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metabolism
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pathology
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surgery
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Carcinoma, Transitional Cell
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metabolism
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pathology
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surgery
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Carcinosarcoma
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metabolism
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pathology
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surgery
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Female
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Follow-Up Studies
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Humans
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Keratins
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metabolism
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Kidney Neoplasms
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pathology
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surgery
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Lymphatic Metastasis
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Male
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Prostatic Neoplasms
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metabolism
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pathology
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surgery
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Retrospective Studies
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Survival Rate
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Ureteral Neoplasms
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metabolism
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pathology
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surgery
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Urinary Bladder Neoplasms
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metabolism
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pathology
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surgery
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Urologic Neoplasms
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metabolism
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pathology
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surgery
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Vimentin
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metabolism
3.Clinical application of respiratory navigator echo triggered black blood contrast cardiac MRI
Liuquan CHENG ; Qian ZHAO ; Na YANG ; Jie ZHOU ; Yi WANG
Chinese Journal of Radiology 2009;43(6):643-646
Objective To investigate the application of respiratory navigator echo triggered black blood contrast FSE in cardiac MRI. Methods The respiratory navigator echo trigger technique combining with black blood FSE (NAV-FSE) was tested on 11 volunteers and 5 patients in free breathing,using breath-hold FSE (BH-FSE) with the same imaging protocals as control. The imaging efficiency and the image sharpness were compared between NAV-FSE and BH-FSE and t-test was used for the statistics. Results All NAV-FSE acquisitions were completed in sixteen subjects while 4 BH-FSE acquisitions failed because of poor breath holding. The efficiencies of NAV-FSE were (42. 95±11.50)%, (56. 14±11.40)% and (55.25± 14. 70)% when echo train length (ETL) were 24, 16 and 8, respectively. When ETL were 16 and 24, the sharpness of NAV-FSE ( 0. 43±0. 02 vs 0. 36±0. 02 ) and BH-FSE ( 0. 36±0. 03 vs 0. 35±0. 02 ) were statistically different (t =4. 26, 5. 53 ,respectively; P <0. 05). NAV-FSE could have a shorter ETL setting without consideration of breath holding. Conclusion The navigator echo trigger technique could be compatible with black blood contrast FSE to image the heart without the restriction of breath holding and it allows to optimize the parameters to improve the image quality.
4.Effect of blocking the signal pathway of TGFβ on presenting antigen of dendritic cells
Jianjun QIN ; Qinghua ZHOU ; Cheng YI ; Yin LI ; Baoxing LIU
Cancer Research and Clinic 2011;23(10):653-656,660
Objective To explore the dysfunction of dendritic cells (DC) related to TGFβ reversed after blocking the TGFβ signal pathway by recombinant adenovirus vector encoding for Smad7.Methods Smad7 by recombinant adenovirus vector was transfected into dendritic cells.Expression of immunologic phenotypes was detected by FCM,and CTL activity induced by DC was compared.Results The DC modified with Smad7 still expressed high adhesiveness factor related to maturation even if existing exogenous TGFβ1,which was significant statistically compared with DC transfected with control adenoviral vector (P <0.01).Even if existing exogenous TGFβ1,the DC modified with Smad7 pulsed with soluble antigen associated with Lewis pulmonary carcinoma could still induce potent CTL activity against Lewis pulmonary carcinoma,which showed significant difference with DC-Ad-c (P <0.01).Conclusion The inhibitory effects on function of DC of TGFβ may be reversed by blocking the Smad signal of TGFβ pathway.
5.Protective effect of propofol delivered through portal vein on hepatic ischemia reperfusion injury in rabbits
Dangjun ZHOU ; Yi LU ; Dongjun AN ; Yao LUO ; Cheng ZHANG
Chinese Journal of General Surgery 2001;0(07):-
Objective To explore the protective effect of portal vein administration of propofol on hepatic ischemia reperfusion injury(HIRI) and its mechanism.Methods Thirty-two male rabbits were randomly allocated into four groups:Group A(sham operation group),the abdomen was only opened and closed;group B,the hepatic inflow was occluded for 30 min,and reperfused for 60 min;group C,the same managment as group B + propofol injected through jugular vein;group D,the treatment same as group B + propofol injected through portal vein.Drug injection was completed 20 min before hepatic inflow occlusion.Serum ALT and AST,and endothelin-1(ET-1) and nitric oxide(NO)in the hepatic tissue and blood,and the content of ATP in hepatic tissue were determined.Results The level of ET-1 in plasma and hepatic tissue was significantly increased in group B compared to group C and D(P
6.Association of rs501120 and rs17465637 gene polymorphisms with coronary heart disease in the Chinese Han population
Liyun ZHANG ; Yi ZHOU ; Zhonghan HE ; Manhua CHEN ; Xiaomin ZHANG ; Li ZHOU ; Longxian CHENG ; Tangchun WU
Journal of Chinese Physician 2011;13(3):289-292
Objective To investigate the rs501120 and rs17465637 gene polymorphisms,and their relationship with the risk of coronary heart disease(CHD)in Chinese Han population.Methods 775 CHD without treatment and 775 age and gender matched controls were selected for this study,the genotypes of two single nucleotide polymorphisms(SNP)rs501120 and rs17465637 were tested with TaqMan-MGB probes.Results There was no significant difference in the frequency of genotypes of the 2 SNPs between CHD group and control group(P >0.05).Stratified analysis showed that SNP rs501120 had significant protection with CHD in people younger than 60 years old(OR 0.4,95% CI 0.2-0.9,P < 0.05)or people with diabetes(OR0.3,95%CI0.1-0.7,P <0.05).Conclusions The results suggested that rs501120 was tightly associated with CHD in people younger than 60 years or had diabetes.
7.Efficacy and safety of sirolimus and tacrolimus after renal transplantation: a meta-analysis
Jingyi ZHOU ; Yi SHEN ; Jun CHENG ; Yan JIANG ; Hongfeng HUANG ; Jianghua CHEN
Chinese Journal of Organ Transplantation 2014;35(10):584-589
Objective To evaluate the efficacy and safety of sirolimus and tacrolimus after renal transplantation.Method PubMed,Web of knowledge,Medline and the Cochrane Library were searched with the terms and Boolean operators as (kidney transplantation OR renal transplantation) AND (sirolimus OR rapamycin) AND (tacrclimus OR FKS06).Results retrieved were last updated on June 9,2014.Language limit of English and Chinese only was applied.Trials were excluded if enrolling recipients of organs other than kidneys,reporting none of the outcomes in point or combining sirolimus with tacrolimus.Patient and graft survival,acute rejection and adverse events were evaluated as primary outcomes and glomerular filtration rate (GFR) was an additional surrogate for renal function.Professional meta-analysis software RevMan 5.1 was employed to analyze the pooled risk ratio (RR) and mean difference (M D) followed by subgroup analysis and sensitivity analysis.Result Fifteen studies were included with 2480 patients.Patients in the sirolimus group showed an increased rate of acute rejection within one-year's follow-up 2.02 (95% CI 1.37-2.99,P<0.05) and also a higher risk of adverse events 1.31 (95% CI 1.02-1.68,P<0.05).The incidence of hyperlipidaemia was significantly higher with RR =1.75 (95% CI 1.17-2.61,P< 0.01) in the sirolimus group.The other outcomes were insignificantly different between two groups.In subgroups with ATG as immunity induction and higher sirolimus concentration (>4-8 μg/L),the difference was insignificant (P > 0.05).Conclusion This meta-analysis concluded that sirolimus showed no advantage over tacrolimus when used early after transplantation.When used with higher concentrations,or with ATG as immunity induction,the disadvantages may be avoided.More clinical evidence is needed.
8.Gynecological malignant tumor related multiple primary malignant neoplasms: clinical analysis of 30 cases
Li SHI ; Shulin ZHOU ; Yi JIANG ; Yicong WAN ; Jingjing MA ; Shilong FU ; Wenjun CHENG
Chinese Journal of Obstetrics and Gynecology 2014;49(3):199-203
Objective To investigate the clinical features of gynecological malignant tumor related multiple primary malignant neoplasms (MPMN).Methods Apply retrospective and comprehensive analysis to the clinical data of 30 patients with gynecological malignant tumor related MPMN.Results Synchronous MPMN were found in 9 patients.Their average age was 50.2 years old and their median age was 49 years old.The neoplasms were located at ovary,uterus,cervix,breast and intestine.Metachronous MPMN were found in 21 patients.Their average age was 57.7 and their median age was 57 years old.The median interval between the first and the second primary malignant neoplasm was 4.0 years.The neoplasms were located at breast,ovary,uterus,gastrointestinal tract,uterine cervix,lung etc.In 30 cases,26 of them were treated by surgical operation and further adjunctive treatment of chemotherapy and (or) radiotherapy was conducted as per the neoplasm staging and its pathological results.The rest 4 patients (first primary malignant neoplasms were excised from 3 of them and another one was not treated by surgical operation) received adjunctive treatment of chemotherapy and (or) radiotherapy.Followed ups,which varied from 6 to 60 months,were made to 29 patients and 20 out of the 29 were alive.5-year survival rate of patients with gynecological malignant tumor related MPMN was 47.8%,2-year survival rate was 73.9%,and 1-year survival rate was 88.6%.Conclusion Pay more attention to the patients with gynecological malignant tumor related MPMN,examine the high-risk patients with malignant tumor comprehensively,identify whether it is recurrence,metastasis or new growth of malignant neoplasm,and further ensure early diagnosis and proper treatment,avoiding misdiagnosis and missed diagnosis.
9.Application of failure mode and effect analysis in reducing hospital medical errors
Yutian BI ; Jing TANG ; Aiqing WEN ; Yi WANG ; Xiaobin CHENG ; Lin ZHOU
Chinese Journal of Hospital Administration 2011;27(10):739-741
As the importance of clinical risks management grows hospital management,reducing hospital medical errors for patients safety has become a key quality management process.Failure Mode and effect analysis( FMEA) is a proactive technique for error detection and reduction.In this paper,based on a brief review of it's history of development,described in detail the implementation method and steps of FMEA,mainly introducing the research progress for using FMEA in reducing hospital medical errors.
10.Relationship of PTEN expression level with positioning of AMPA receptor subunit GluR2 in hippocampal neuron after stretch injury
Minhui XU ; Yuan CHENG ; Chun ZHOU ; Guangjian SHEN ; Lunshan XU ; Liang YI
Chinese Journal of Trauma 2010;26(6):551-555
Objective To explore the relationship of phosphatase and tensin homology deleted on chromosome ten ( PTEN ) expression with the positioning of AMPA recepter subunit GluR2 in hippocampal neuron after stretch injury. Methods The primary rat hippocampal neuron from neonate rats were cultured and the model of stretch injury established. Western blot and TUNEL staining were used to detect PTEN expression and the positioning of AMPA receptor subunit GluR2 in rat hippocampal neuron at different time intervals after stretch injury. Results The PTEN expression was increased obviously after stretch injury, while the expressions of AMPA receptors GluR1, GluR2 and GluR3 showed no evident differences at every time point. However, AMPA receptor subunit GluR2 located at cytomembrane was down-regulated obviously after stretch injury. Conclusion The intracellular PTEN expression and the expression of AMPA receptor subunit GluR2 located at cytomembrane are on the contrary, indicating that PTEN phosphatase may participate in the transport and reintegration process of AMPA receptor subunit GluR2 located at cytomembrane.