Aim To investigate the effects of propofol on focal cerebral ischemia and the changes of protein kinase C isoform ?(PKC?) expression in rats brain. Methods Male SD rats were randomly allocated into five groups: Ⅰ: sham group, Ⅱ: injury group, Ⅲ: propofol (25 mg?kg-1) plus injury group, Ⅳ: propofol (50 mg?kg-1) plus injury group, Ⅴ: intralipid plus injury group. The focal cerebral ischemia was induced by 3 h of middle cerebral artery occlusion (MCAO) and 24 h of reperfusion. 30 min before reperfusion, propofol and intralipid were infused intraperitoneal of the rats in groups Ⅲ, Ⅳ, Ⅴ, respectively. After 24 h of reperfusion, rats were weighted and the neurological deficit was assessed by 5-point scale. Brain pathologic changes were observed by HE staining, the method of terminal deoxynucleotidyl transferase mediated dUTP-biotin nick end labeling (TUNEL) was carried out for the assessment of neural apoptosis, and immunocytochemistry was used to investigate the changes of PKC?.Results After 3 h of MCAO and 24 h of reperfusion, the weight of rats in group Ⅱ, Ⅲ, Ⅳ, Ⅴ decreased and their neurological deficits scores increased. Compared to the rats of sham group, the numbers of apoptosis neurons in striatum were marked-ly increased, and the expression of PKC? were significantly decreased in rats of injury group (P

Radiotherapy is one of major cancer treatment methods.However,radiation resistance is an important reason to restrict the efficacy of radiotherapy and lead to treatment failure.In recent years,the relationship between the canonical Wnt signaling pathway and tumor radiation resistance has more and more attention of the scholars.This review summarized recent ten years findings concerning the canonical Wnt signaling pathway and tumor radiation resistance and tried to find some valuable rules or some internal relationships among different pathways by systemically analyzing.

Interdisciplinary can be acted in any stages of researching procedure.The interdisciplinary process research thinking were addressed including how to builds variables,which are depth and width,fixed discipline or not,and also to reflect the collaboration level of interdisciplinary in certain period.By this quantity evaluation mode building,it will useful for the interdisciplinary research in the future,especially in medical and life science fields.

Academic Papers published with hospital-based data between 2004～2013 on top 5％ impact factor journals in all JCR 184 subject categories were reviewed in the study.All of them were differentiated to 3 groups according to the ways of collaboration between authors.The distribution of these papers institutions and subjects were studied and questionnaire survey to hospitals was also used.It's found that the multidisciplinary collaborating work is a key factor to publish high impact papers which showed the central tendency in subjects and institutions levels,active management measures on interdisciplinary development will contribute the outcome of high impact papers.

Multiple organ dysfunction syndrome (MODS) is one of the leading causes of death in ICU patients.However,there have been few studies on the role of MODS as a cause of death in patients with acute myocardial infarction (AMI),particularly in those at advanced age.Our study aimed to investigate the incidence and to identify the predicting factors of MODS in elderly patients with AMI.Methods We identified consecutive patients with AMI who were discharged from the Chinese PLA General Hospital between January 1993 to June 2006.Medical records of 800 consecutive patients aged 60 years or over were analyzed retrospectively.Multivariate logistic regression was used to determine factors predicting in-hospital development of MODS.Results Twenty-seven (3.4%) patients developed MODS within 30 days after AMI.Compared with patients without MODS,patients with MODS had higher in-hospital mortality rates (55.6% vs 11.6%,P＜0.001 ) and more frequent complications of cardiogenic shock (25.9% vs 6.2%,P＜0.001),heart failure (HF) (59.3% vs 18.2%,P＜0.001 ),cardiac arrhythmia (44.4% vs 26.4%,P＜0.05) and pneumonia (55.6% vs 16.3%,P＜0.001).Multivariate logistic regression analysis showed the major predictors for the occurrence of MODS secondary to AMI were advanced age (≥ 75 years,odds ratio 2.64,95% confidence interval [CI] 1.13 to 6.61),heart rate/＞ 100 bpm on admission (odds ratio 1.74,[CI] 1.14 to 2.64),in-hospital complication of HF (odds ratio 3.03,[CI] 1.26 to 7.26) and pneumonia (odds ratio 2.82,[CI] 1.18 to 6.77).Conclusions MODS is not the uncommon complication in elderly patients with AMI and is associated with poor prognosis.Advanced age,heart failure and pneumonia are predictors of the development of MODS in patients with AMI.(J Geriatr Cardiol 2008;5:199-202)

Objective This trial was to observe the effect of Ulinastatin on coagulation functions in patients during operation period,and to investigate the protective mechanisms of Ulinastatin.Methods Forty patients were randomly divided into Ulinastatin group (Group U,n =20) and control group (Group C,n =20).Group U was infused intravenously ulinastatin 4000 U/kg (diluted with saline to 30 ml,20min losers) after anesthesia and before cutting skin,while Group C received the same volume of normal saline.All patients were phlebotomized 1 ml peripheral blood before administered (T0) and after 1 hour (T1),respectively.Coagulation activation time (SonACT),clot rate (CR) and platelet function (PF)were detected by sonoclot coagulation analyzer and platelet function analyzer.Results Compared with group C (controlled group),SonACT of Group U was prolonged significantly at T1 (P ＜ 0.05),and PF were increased at T1 (P ＜ 0.05) ; Compared with T0,SonACT and PF were increased at T1,respectively (P ＜ 0.01).Conclusions Ulinastatin can improve perioperative coagulation function and platelet function.It may reduce intraoperative micro-thrombosis syndrome and postoperative deep vein thrombosis.

ObjectiveTo investigate the effect of glucose and insulin on the synthesis and secretion of adrenomedullin (ADM) by rat aortas in vitro.MethodsThe rat aortas were cut into pieces and divided into several equal groups. All the groups were incubated in K-H buffers including different levels of glucose,insulin and insulin+glucose for 3 hours,the group incubated in K-H buffer without glucose was used as control. To determine ADM in K-H buffers and tissues using RIA method.ResultsADM levels in insulin groups (100.0 μIU/ml,200.0 μIU/ml) and insulin+glucose groups were higher than that in control (P<0.05),the ADM levels in glucose groups and low level insulin group (20.0 μIU/ml) were not significantly difference compared with the control. ConclusionHigh levels of insulin can stimulate the synthesis and secretion of ADM.

Objective To study the PTV by ng 4DCT and compare target,target displacement and dose distribution of 3D and 4D planning for thoracic middle or lower esophageal cancer,evaluate the clinical value of 4DCT in esophageal cancer radiotherapy.Methods From Jan to Dec 2012patients with primary esophageal cancer underwent 3DCT simulation scans first,then followed by 4DCT simulation scan.PTV and OARs were sketched in the ordinary 3DCT and 4DCT respectively.And designing two sets of radiotherapy plan for each patient:3D and 4D plan.We compare PTV,PTV displacement and OARs dosimetry's differences in the 3D plan and 4D plan.Using the paired t-test or Wilcoxon sign-rank test to compare the difference between the two sets of plans.Results The volume of PTV4D was larger than the PTV3D (195.19 cm3 vs.175.67 cm3,P =0.001) in all patients.The center displacement had only significantly difference (displacement was 0.25 cm,P =0.014) in left-right direction for 10 patients of thoracic middle esophageal cancer.The center displacement had no significantly different in the three direction for 9 patients of thoracic under esophageal cancer (P=0.722,0.307,0.208).The dose target area of V100,V95 and V90 in Plan3DC were significantly than those in Plan-3D for 19 patients of thoracic middle-lower esophageal cancer (88.62％ vs.95.69％,P=0.000;95.17％ vs.99.79％,P=0.001;97.19％ vs.99.99％,P=0.001).In 4D plan the lung V5,V20 and Dmean of heart were higher than that in 3D plan for all patients (39.49％vs.37.44％,P=0.016;19.93％ vs.18.87％,P=0.018 and 2607.74 cGy vs.2389.16 cGy,P=0.004).Conclusions 4DCT positioning technology can accuracy determine individualized expanding boundary by target area of radiotherapy for thoracic middle or lower esophageal cancer.The enlarging target volume increase the dose of radiotherapy for lung,and in the dose range in the 4D plan,but the increased dose of heart should be noted.

Objective To investigate the role of NRAGE subcellular localization in the EMT and radioresistance of esophageal cancer cells.Methods EMT model cells were established by the treatment of TE13 cells with TGF-β1.To verify the establishment of EMT model and the phenotype of EMT-like TE13R120 cells,EMT marker mRNA and protein were detected by Real-time PCR and Western blot,respectively.Real-time PCR was also used to detect the expression of NRAGE mRNA in three groups.Total NRAGE protein,cytoplasm protein and nuclear protein were measured by Western blot.Results It was found that TGF-β1 could induce morphological alterations of TE13 cells from epithelial to mesenchymal and change the expressions of EMT maker E-cadherin and vimentin (t =13.56,-232.84,P ＜ 0.05),indicating the successful establishment of EMT model cells.Similar expression trends of EMT makers were observed in TE13R120cells (t=15.84,-54.54,P＜0.05).NRAGE mRNA (t=-8.73,-5.62,P＜ 0.05) and total protein in both EMT model cells and TE13R120 cells were higher than that in TE13 cells,especially for the nuclear proteins.However,no differences in NRAGE cytoplasm protein expression were found among the three groups.In addition,there were also no difference of NRAGE mRNA (t =-0.88,P ＞0.05),cytoplasm and nuclear protein between TE13R120 cells and EMT model cells.Conclusions The radioresistant cell line TE13R120 has the EMT-like phenotype that may cause cell radioresistance by changing the subcelluar localization of NRAGE.