1.Effect of Tetramethyl Pyrazine on Infarct Areas and Expressions of ED1,IL-1?,TNF-? after Focal Cerebral Ischemia Reperfusion in Rats
Chinese Journal of Information on Traditional Chinese Medicine 2006;0(05):-
Objective To investigate the effect of Tetramethyl Pyrazine(TMP) for treating cerebral infarct by observing infarct areas,and to research its function mechanism by observing the changes of the expressions of ED1,TNF-? and IL-1? in the infarction region after focal cerebral ischemia reperfusion injury.Methods Sixty SD male rats in healthy condition were randomly and averagely divided into normal group,model group and TMP high,middle and low dose group.The cerebral infarct animal model was reproduced by modified thread-tie method.TMP high dose group was administered TMP 140 mg/kg,middle dose group was 120 mg/kg and low dose group was 100 mg/kg by intravenous.Then all the rats were killed.Thirty rats were taken to evaluate whether TMP can decrease the ratio of cerebral infarction areas in the TTC-reacting and formalin fixation brain tissue slices taken from the above-mentioned killed rats,with Pathology Image Analysis System.The masculine of ED1,IL-1? and TNF-? in the immuno-reacting cells in cerebral infarction brain tissue slice taken from other thirty killed rats were observed.Results TMP groups decreased the ratio of cerebral infarction areas,and also decreased ED1,TNF-? and IL-1? in immuno-reacting cell.Conclusion TMP can decrease the formation of cerebral infarction caused by cerebral ischemia reperfusion and its effect is possibly related to the activation of microglia,as well as the immuno-positive expressions of TNF-? and IL-1?.
2.Effects of Danshen Injection on expression of spinal cord neurons fos and heat shock protein 70 of limb ischemia-reperfusion rats
Yanchun WANG ; Jianming CHEN ; Jun MA
China Journal of Traditional Chinese Medicine and Pharmacy 2006;0(09):-
Objective:To investigate spinal cord neurons fos,heat shock protein 70(HSP70)change and influence of Danshen Injection after the rats’limb ischemia reperfusion.Methods:Through temporarily interdict the rat’s one side iliac artery and femoral artery to establish the model of the limb ischemia reperfusion injury.Using the immunohistochemical method of ABC to observe the expressions about neurons fos and HSP70 positive neurons and the character about their distributions,as well as their change after being intervened by Danshen Injection n.Results:The rats’spinal cord neurons fos and HSP70 expressions increased in four hours later the limb ischemia(P
3.Effects of general anesthesia and combined spinal epidural anesthesia on postoperative cognitive function in elderly patients with lower limb fracture
Yanchun CHEN ; Chao FAN ; Yongqiang LUO
Chinese Journal of Biochemical Pharmaceutics 2017;37(2):241-243
Objective To observe the effects of general anesthesia and combined spinal epidural anesthesia in elderly patients with lower limb fracture surgery, and to evaluate the effect of postoperative cognitive function and pain score.Methods Retrospective analysis, screening of intraoperative anesthesia, postoperative change lost invalid cases, from November 2012 to October 2015 in our hospital accepted surgical treatment of 180 patients with lower limb fracture surgery were selected according to different patients with different anesthesia methods can be divided into treatment group and control group, 90 cases each group of patients.Patients in the treatment group were treated with combined spinal epidural anesthesia , while the control group received general anesthesia.The incidence of cognitive dysfunction and postoperative pain scores were compared between the two groups. Results the incidence of cognitive dysfunction after surgery in 90 cases of observation group was lower than that of the control group , and the difference was statistically significant (P<0.05).The evaluation of two groups of postoperative chronic pain for 3 days, 6 days, 10 days, 15 days, the incidence rate of VAS score and the character, whether the impact on the daily life and the rest, the patients in the treatment group pain scores were significantly lower than the control group, the difference was significant (P <0.05).Conclusion After lumbar epidural anesthesia in elderly lower limb fracture surgery effect on cognitive function in patients with small, and can reduce the pain of patients, in the actual work according to the actual situation of different specific problems in different specific analysis.
4.Correlation between clinical nurse turnover intention and job satisfaction
Qifeng CHEN ; Zhenjiao DENG ; Yanchun HE ; Guangxin CHEN
Modern Clinical Nursing 2013;(11):11-13,14
Objective To explore the correlation between the clinical nurses’turnover intention and their job satisfaction of their present working status.Method The Mueller/Mccloskey Satisfaction Scales(MMSS)and Turnover Intention Scale(TIS)were employed to implement the questionnaire survey among 531 registered nurses from a hospital in Taishan,Guangdong.Results The total scores on nurses turnover intention and their job satisfaction were(3?34±0?40)and(14?54±1?38)respectively.The opportunity for professional improvement,welfare and income,balance between job and family were negatively correlated with their turnover intention (all P<0?05).Conclusions The nursing administration should look into the conditions of nurse’s turnover intention and their job satisfactions so that they can take effective measures to improve their job satisfaction and decrease their turnover intention.
5.Iodine-125 implantation combined with chemotherapy of GP regimens for non-small cell lung cancer in elder patients
Shizhuang CHEN ; Boxu ZHANG ; Xiaomin FANG ; Yanchun BAI ; Yanxia ZHANG
Journal of Interventional Radiology 1994;0(03):-
0.05).Conclusions The chemotherapeutic embedding radioactive particle 125Ⅰ combined with GP is safe,feasible,and effective to the therapy of senile-inoperable NSCLC.
6.Research of the expression and significance of syntaxin 8 in non-small cell lung cancer tissues
Jinpeng SUN ; Tao TIAN ; Ling CHEN ; Yanchun LIU ; Jichang KONG
Tianjin Medical Journal 2017;45(7):735-738
Objective To investigate the expression and significance of syntaxin 8 (STX8) in non-small cell lung cancer (NSCLC),and analyze the relationship between STX8 expression and clinicopathological features of NSCLC.Methods Seventy samples of NSCLC and 70 samples of pericancerous tissues were collected for immunohistochemistry staining,and another 10 samples of NSCLC and pericancerous tissues were used for RNA and protein extraction,qRT-PCR was performed to detect the expression of STX8 mRNA,and Western blot assay was adopted to detect the expression of STX8 protein.The relationship between STX8 expression and clinicopathological features of NSCLC was analyzed.Results Results of qRT-PCR showed that the expression of STX8 mRNA was significantly higher in NSCLC tissues than that in the pericancerous tissues (3.962 5±0.487 3 vs.0.538 2±0.097 5,t=21.797,P<0.01).Immunohistochemistry results showed that the high expression rate of STX8 was significantly higher in NSCLC tissues than that in the pericancerous tissues [71.43% (50/70) vs.38.57% (27/70),x2=15.267,P<0.01].Western blot results showed that the expression of STX8 protein was significantly higher in NSCLC tissues than that in the pericancerous tissues (2.496 1±0.362 5 vs.0.340 2±0.119 1,t=17.876,P<0.01).The high expression rate of STX8 was significantly different in different histological types of NSCLC (P <0.05).The high expression rate of STX8 was higher in squamous cell carcinoma and adenocarcinoma than that in adenosquamous carcinoma,and the high expression rate of STX8 was not observed in large cell carcinoma.There were no significant differences in expressions of STX8 in NSCLC patients with different gender,ages,tumor diameters,TNM stages and with or without lymph node metastasis (P>0.05).Conclusion A high expression of STX8 in NSCLC tissues may be correlated with the occurrence and development of NSCLC.
7.Construction of the quantitative structure retention relationship of cefdinir related substances.
Chen WANG ; Jin LI ; Yanchun FENG ; Ying LIU ; Changqin HU
Acta Pharmaceutica Sinica 2015;50(9):1161-6
The molecular descriptors of impurities with known structure in cefdinir were calculated, selected and associated with the chromatographic retention behavior to establish a model. This quantitative structure retention relationships (QSRR) model for the related substances of cefdinir was established under specific chromatographic condition and verified by other impurities. 12 molecular descriptors were used to establish the QSRR model, F_AFRBWF, Blbn_J, SsCH3, SssCH2, SsNH2, SssNH, SssS, SHdCH2, EEM_AFc, EEM_AFpl, EEM_XFpl and Pi_MaxQ. The relativity between true values and predictions in QSRR of cefdinir is R2 = 0.9836 (n = 18), ΔRRT is no more than 0.154, as 10.17% in RRT. The results indicate that the QSRR model for the related substances of cefdinir can be used to evaluate the analysis methods for related substances and predict the chromatographic behavior of new impurities, which will provide a new way for the evaluation of the effectiveness for drug quality control.
8.The diagnostic value of MSCT on diagnosis and prognosis evaluation of abdominal aortic aneurysm
Cheng CHEN ; Jia WANG ; Yanchun WANG ; Weiqiang ZHANG
Journal of Practical Radiology 2016;32(12):1930-1932
Objective To evaluate the diagnostic value of MSCT in abdominal aortic aneurysm(AAA).Methods 26 patients suspected AAA and admitted to our hospital were studied and checked by MSCT prospectively.The accuracy and features of MSCT were analyzed. Results 26 patients were diagnosed as AAA by MSCT,in which 17 cases were true AAA,and 9 were false AAA.MSCT for true AAA patients showed fusiform dilatation of abdominal aorta bulging to the left,and showed visible thrombus and calcification in aneurysm wall of residual tumor around the cavity when aneurysm ruptured.MSCT of false AAA showed aortic eccentric enlargement lump,which could be outside the boundaries of vascular calcification.25 cases of AAA were surgically confirmed,and the coincidence rate of MSCT and pathology was as high as 96.1% (25/26).Arterial wall calcification was found in all patients,in which 17 cases had mural thrombus.Conclusion MSCT is a safe,effective and non-invasive diagnostic technology for early detection and treatment of AAA, which may help determine patient’s condition and guide the treatment.
9.Proteomic Characterization of Human Erythrocyte 20S Proteasome and Analysis of Species-dependent 20S Proteasome Heterogeneity
Guoqiang CHEN ; Hui LIU ; Haijing ZHANG ; Yanchun DENG ; Zhili LI
Chinese Journal of Analytical Chemistry 2009;37(12):1711-1716
A method was developed for purification of 20S proteasome (20S core particle, CP) by combining differential centrifugations with nondenaturing polyacrylamide gel electrophoresis (native-PAGE), irrespective of species origins of CPs. CP purified from human erythrocytes was subjected to proteomic analysis by two-dimensional gel electrophoresis (2-DE) and matrix-assisted laser desorption/ionization mass spectrometry (MALDI-MS), revealing 33 spots of subunit isoforms with different molecular weights and isoelectric points, more than 14 constituent subunits. Furthermore, other four CPs were purified from yeast, mouse liver, two pancreatic cancer cell lines SW1990 and PANC-1 using this method mentioned above, and subjected to proteasome heterogeneity analysis by native/SDS-PAGE (native/sodium dodecyl sulphate polyacrylamide gel electrophoresis), together with CP from erythrocytes. The method described acts as a rapid and effective tool for CP isolations, and the results obtained may be served as a footstone for the investigations of species-dependent proteasome heterogeneity.
10.Permanent implantation of ~(125)I seeds combined with GP scheme chemotherapy for non-small cell lung carcinoma in aged patients
Shizhuang CHEN ; Yanchun BAI ; Jing LIU ; Yanxia ZHANG ; Ling WANG
Journal of Interventional Radiology 2009;18(9):699-701
Objective To assess the feasibility, safety and curative effect of permanent implantation of ~(125)I seeds combined with GP scheme chemotherapy for the treatment of non-small cell lung carcinoma (NSCLC) in aged patients. Methods CT-guided permanent implantation of ~(125)I seeds combined with GP scheme chemotherapy was performed in 46 patients with NSCLC, of whom 26 received primary treatment and 20 underwent renewed treatment. During the procedure, ~(125)I seeds were embedded into the tumor in all the patients. Three to five days after the implantation, GP scheme chemotherapy started. GEM (1 000 mg/m~2) was given (intravenously dripping for 30 min.) on the 1st, 8th and 15th day; DDP (30 mg/m~2) was employed on the 1st, 2nd and 3rd day, and recombinant human endostatin (Endostar, 7.5 mg/m~2) was administered (intravenously dripping for 3-4 hours) from the 1st to the 14th day. Every 28 days completed one treatment course. Two months after ~(125)I seed implantation, at this time the patient had received two courses of treatment, the short-term effect and the toxic side-effect were evaluated. Results Two months after the ~(125)I particles were embedded in the tumor, all the 46 cases were able to be evaluate for the curative effect. Of 46 patients, complete relief (CR) was seen in 12, partial relief (PR) in 24, stable (SD) in 6 and progression (PD) in 4, with an effective rate of 78.26%. Of 26 patients in the primary treatment group, CR was obtained in 7, PR in 15, SD in 3 and PD in 1, with an effective rate of 84.6%. Of 20 patients in the renewed treatment group, CR was seen in 5, PR in 9, SD in 3 and PD in 3, with an effective rate of 70.0%. Conclusion Permanent implantation of ~(125)I seeds combined with GP scheme chemotherapy is an effective, safe and feasible treatment for NSCLC in aged patients.