1.Understanding and controversy of the gastroesophageal junction adenocarcinoma.
Xiang-Hong ZHANG ; Qi-Zhang WANG
Chinese Journal of Oncology 2008;30(12):947-949
Adenocarcinoma
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classification
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pathology
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surgery
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therapy
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Cardia
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Chemotherapy, Adjuvant
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Esophageal Neoplasms
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classification
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pathology
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surgery
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therapy
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Esophagectomy
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methods
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Esophagogastric Junction
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surgery
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Gastrectomy
;
methods
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Humans
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Neoplasm Staging
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Radiotherapy, Adjuvant
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Stomach Neoplasms
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classification
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pathology
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surgery
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therapy
3.Retroperitoneal laparoscopic pyelolithotomy and ureterolithotomy (report of 25 cases)
Xiang CHEN ; Yixiang ZHANG ; Fan QI
Chinese Journal of Urology 2001;0(09):-
Objective To evaluate the surgical technique and clinical application of retroperitoneal laparoscopic pyelolithotomy and ureterolithotomy with no suture of the incision. Methods Twenty-five patients who had upper urinary tract calculi with the course from 10 months to 6 years were enrolled.The size of the calculi was 1.2 to 3.1 cm in diameter.ESWL was ineffecative in 14 of the patients and ureteroscopic lithotomy failed in 2 of them.Then the 25 patients underwent retroperitoneal laparoscopic pyelolithotomy and ureterolithotomy.Details of the procedure were presented. Results All the operations were successful in the 25 patients. The operations took 60 to 190 min with a mean time of 105 min.All the patients fully recovered with no complication observed during the 9~12 months' follow-up. Conclusions Retroperitoneal laparoscopy surgery with no suture of the incision has advantages of minimal invasive,safe,effective and rapid postoperative rehabilitation.The surgical procedure has a good prospect in the urologic clinical practice.
4.Specific binding of folate conjugated PGA to FR-positive tumor cells
Qi ZHANG ; Youjiu ZHANG ; Keya YANG ; Guangya XIANG
Chinese Pharmacological Bulletin 1986;0(06):-
Aim To investigate the specific binding of folate conjugated PGA to FR-positive tumor cells.Method Folate-PGA and PGA were radiolabeled with 125I by the Iodogen method to examine the binding of PGA to FR positive HeLa cells and SKOV3 cells, or FR negative A549 cells. Results 125I-folate-PGA showed specific bound to HeLa cells and SKOV3 cells; Scatchard analysis of the data estimated the Kd of binding to be 0.11 nmol?L-1 and 0.25 nmol?L-1 respectively. 125I-folate-PGA showed virtually little specific binding to A549 cells which lack folate receptors. Conclusions folate-PGA displayed high affinity and good targeting activities for FR-positive tumor cells and the data warranted further studies for enzyme prodrug therapy.
7.Influence of Akt inhibitor MK2206 in proliferation and apoptosis of tongue squamous cell carcinoma TCA-8113 cells and its mechanism
Xiang LI ; Bin ZHANG ; Jing MA ; Qi GAO ; Yi SHI
Journal of Jilin University(Medicine Edition) 2014;(3):616-620
Objective To explore the influence of Akt inhibitor MK2206 in the proliferation and apoptosis of tongue squamous cell carcinoma TCA-8113 cells,and to clarify the possible mechanism.Methods The tongue squamous carcinoma TCA-8113 cells at the logarithmic phase were randomly divided into control group and 1,5,25,125, 250 nmol·L-1 MK2206 groups.The inhibitory rate of proliferation of TCA-8113 cells was detected with MTT method,and the apoptotic rate of TCA-8113 cells was determined with flow cytometry(FCM),and the expressions of caspase-9,Bad,GSK-3β,p-Akt and T-Akt proteins in the TCA-8113 cells were detected with Western blotting method.Results The IC50 of tongue squamous cell carcinoma TCA-8113 cells after treated with MK2206 for 12, 24,and 36 h were (112.54±1.67),(79.67±2.01),and (33.33±1.98)nmol·L-1 .The FCM results showed that the apoptotic rates of TCA-8113 cells after treated with 1,5,25,125,and 250 nmol·L-1 MK2206 for 12 h were (14.2±0.74)%,(19.3±0.45)%,(35.1±0.45)%,(39.6±0.48)% and (52.1±0.19)%;there were significant differences compared with control group(P<0.01).The Western blotting method results showed that the expressions of p-Akt, Bad and GSK-3βwere decreased with the increasing of dose and time of MK2206;compared with theβ-actin in control group,the bands got darken;the expression level of caspase-9 was increased, compared with theβ-actin in control group, the bands got darken;the T-Akt protein expression did not change significantly;compared with the β-actin in control group, the color of bands had no significant difference.Conclusion Akt inhibitor MK2206 can inhibit the proliferation of tongue squamous cell carcinoma TCA-8113 cells and induce apoptosis.
8.A current consideration of the microbes listed in the National Standard of Laboratory Animals for mice and rats
Zhiguang XIANG ; Wei TONG ; Lifang ZHANG ; Qi KONG ; Qiang WEI
Chinese Journal of Comparative Medicine 2016;26(2):33-39
In this paper, some items about the microbes listed in the current National Standard of Laboratory Animals were reviewed, including their host spectrum, impact of infection on the animals, their interference on research works and their epidemiology in laboratory animals.This paper may provide some clues for the update of our National Standard of Laboratory Animals.
9.Current situation survey and analysis of a district general hospital in Shanghai
jun, XIANG ; qi-min, HUANG ; jin-fu, ZHANG
Journal of Shanghai Jiaotong University(Medical Science) 2006;0(08):-
Objective To analyse the changes of a district general hospital before and after management by Shanghai Renji Medical Group through current situation survey,and explore the conditions for the development of district general hospitals.Methods The Zhujiajiao People's Hospital of Qingpu District in Shanghai was selected,and patients(n=50)and hospital staff(n=100) were conducted current situation survey with questionnaires which included the knowledge and evaluation of the hospital's current situation as well as the changes before and after management by Shanghai Renji Medical Group.Results Half year after management by Shanghai Renji Medical Group,great progress in medical work was achieved,with a favourable development trend.The rate of satisfaction on medical service evaluated by inpatients reached 89.60%,and 81.91% hospital staff had confidence in the sustainable development of the hospital. Conclusion Management by Shanghai Renji Medical Group has brought prospects for the Zhujiajiao People's Hospital.Under current environment,only certain conditions are met can a district general hospital achieve sustainable development.
10.Effect of dexmedetomidine and midazolam on hemodynamics and sedation in patients with nasal intubation
Xue XU ; Xiang QI ; Zhi LIANG ; Xiaoqing ZHANG ; Zhenming DONG
Chinese Journal of Postgraduates of Medicine 2012;35(6):1-3
Objective To study the effect of dexmedetomidine and midazolam on hemodynamics and sedation in patients with nasal intubation.Methods Forty patients whose ASA grade Ⅰ-Ⅱ and anticipated difficult airway were randomly divided into dexmedetomidine group(group D,20 cases)and midazolam group(group M,20 cases)according to the admission number.In group D,dexmedetomidine 1 μ g/kg were constant speed pumped in 10 minutes.In group M,midazolam 0.03 mg/kg were intravenous injected.Then nasal intubation were carried.Systolic blood pressure(SBP),diastolic blood pressure(DBP),mean arterial blood pressure(MAP),heart rate(HR),pulse oxygen saturation(SpO2),Ramsay sedation score,rate-pressure product(RPP),tip perfusion index(TPI)were recorded and compared before anesthesia (T0),fiberoptic bronchoscope pass by later nostril(T1),to spy on epiglottis(T2),intubation succeed(T3),after intubation 1 minute(T4)and after intubation 3 minutes(T5).Airway score and postoperative visit were evaluated.Results SBP,DBP,MAP,HR,RPP in group M were significantly higher at T1-T3 than those at T0 (P<0.05),and were significantly higher than those in group D at the same time(P< 0.05).There was no significant difference in group D(P > 0.05).Ramsay sedation score and TPI at T1-T3 in group M were significantly lower than those at To(P <0.05).Ramsay sedation score and TPI at T1-T5 in group D were significantly higher than those at T0(P < 0.05),and were significantly higher than those in group M at the same time(P < 0.05).The rate of airway score 1 score and intubation satisfaction in group D were significantly higher than those in group M[100%(20/20)vs.30%(6/20),90%(18/20)vs.50%(10/20)](P< 0.05).The rate of throat ache in group D was significantly lower than that in group M[5%(1/20)vs.35%(7/20)](P <0.05).Conclusions For difficult airway patients with nasal intubation during dexmedetomidine infusion,hemodynamics is stable and sedation is satisfied.