Objective To investigate the effects and possible mechanisms of ursolic acid (UA) on inhibiting proliferation of human esophageal carcinoma cell Eca-109 and inducing its apoptosis. Methods Cell proliferation was determined by MTT assay. Electron microscope was used to observe the ultrastructural changes of Eca-l09 induced by UA. Cell cycle and apoptotic rate were analyzed by flow cytometry (FCM),and the expression of P27kip1,Bcl-2 and Bax were detected by Western blot method. Results UA could significantly inhibit the growth of Eca-109 cells(P

Objective To assess the clinical effects and adverse reactions of different regimens of chemotherapies for elderly patients with advanced gastric cancer. Methods 95 elderly patients with advanced gastric cancer were randomly divided into 3 groups. The regimens of OLF,OX and HCF were used to treat 38 patients,25 patients and 32 patients respectively. The short-term curative effects and side effects on tumor were gradeded according to the criteria formulated by WHO. The curative effects and adverse reactions were assessed and the time of disease progression was calculated at least 2 cycles after chemotherapy. Results The efficacy rate was 55.26%, 60. 00% and 53. 13% respectively,and statistical analysis showed no significant difference(P ＞ 0.05). The time of disease progress was 23,30 and 24 weeks respectively, there were significant differences (P ＜ 0.05). The major side effect were neutropenia, gastrointestinal reactions, and were able to be tolerated without a chemotherapy-related death. Conclusion Three regimens of chemotherapies had better curative effects and mild side effects for elderly patients with advanced gastric cancer,and could improve the quality of life of the patients,and are worth of clinical promotion.

A series of 5H-benzo[b] carbazole derivatives were synthesized to find new TopⅡ inhibitors.The substitution pattern at C-9 was discussed.All 16 compounds were tested for their antiproliferative activities against 4 tumor cell lines (SMMC-7721,S1,HCT116,and HeLa) by sulforhodamine B assay.Four compounds were found to inhibit the proliferation of all tested cell lines.And compound 10e displayed the best antiproliferative activity against all 4 tested cell lines with IC50 values of 5.06,4.50,5.29,and 6.32 μmol/L,respectively.

Objective To evaluate the effect of the serum of rats with hepato-pulmonary syndrome (HPS) on the expression of caveolin-1 and VE-cadherin in pulmonary microvascular endothelial cells (PMVECs).Methods Among the 40 healthy Sprague-Dawley rats,aged 3-4 months,weighing 220-250 g,20 rats were taken randomly for establishment the model of HPS which was produced by chronic ligation of the common bile duct,and the left 20 rats served as sham operation group.Primary PMVECs were harvested from healthy adult Sprague-Dawley rats and inoculated in ECM culture medium or on 96-well culture plate.The PMVECs of 4th-9th generation were randomly divided into 2 groups (n =36 each):control group (group C) and HPS group.In group C,the serum obtained from normal rats in sham operation group was added to PMVECs,while the serum obtained from rats with HPS was added in HPS group.The final concentration of serum was 10％.After being incubated for 12,24 and 36 h (T1-3),the expression of caveolin-1 and VE-cadherin in PMVECs was detected by Western blot,and the PMVEC adhesion rate and proliferation were determined by CKK-8 method.Results Compared with group C,the expression of caveolin-1 and VE-cadherin was significantly down-regulated,the cell adhesion rate was decreased,and the proliferation of PMVECs was enhanced in HPS group.Conclusion The serum of rats with HPS induces weakened PMVEC contact inhibition through down-regulating caveolin-1 and VE-cadherin expression.

Objective To investigate the accuracy of careful clinical evaluation in hemodynamic status and guidance of PiCCO monitor in clinical treatment.Methods A total of 96 hemodynamic unstable cases were evaluated prior to the insertion of the PiCCO catheter.The attending physician in charge of the patient was required to complete a questionnaire to predict the range of key hemodynamic variables for CI,GEDI,SVRI and EVLWI.Additionally,the attending was also asked to indicate a plan for therapy based on the predicted hemodynamic profile and decide if the predicted therapy plan was altered after the the first measurement of hemodynamic variables.Results The accurate prediction of hemodynamic variables was CI (55.2％),GEDI(60.4％),SVRI(63.5％) 和 EVLWI (78.1％),among which EVLWI had a higher accuracy(P ＜ 0.05).49％ doctors altered their planned therapy according to the result of the PiCCO information.Doctors had more difficulty in accurately predicting hemodynamic values in critical patients which APACHE Ⅱ scored 15 ～25 (42.3％ vs 67.9％ and 42.3 ％ vs 75.0％,x2 =4.755,5.231,P ＜ 0.05).The prediction of patients with acute myocardial infarction was more accurate than those of without acute myocardial infarction,and less to alter the planned therapy(21.1％ vs 55.8％,x2 =7.382,P =0.007).The patients of impaired oxygenation had less accurate predictions and less therapy alterations(32.3％ vs 56.9％,x2 =5.110,P =0.024).Attending was able to predict the hemodynamic status more accurately(63.9％ vs 40％,x2 =5.152,P =0.023) and alter the predicted therapy less(39.3％ vs 65.7％,x2 =6.189,P =0.013) in patients who were enrolled later.Conclusions Clinical evaluation in hemodynamic status of critically ill patients had a lower accuracy,the information obtained by PiCCO often instruct clinical doctors to choose the optimal treatment.

Objective To identify lung adenocarcinoma-associated antigens by using Serologic Proteome Analysis(SERPA),an approach which combined conventional proteome analysis with serological screening.Methods SERPA of four human lung adenocarcinoma tissues were performed.The Western blot imaging films which reacted with autologous patient serum and with control normal serum were obtained and the differential reacting protein spots were recognized.Results Well-resolved,reproducible 2-DE Western blot imaging films of human lung adenocarcinoma reacted with autologous patient sera and the control sera were obtained.Totally(27?5) differentially expressed proteins which only were reactive with lung adenocarcinoma patient sera were found.Some differentially expressed proteins were identified by peptide mass fingerprint(PMF).Some of the proteins were the products of oncogenes,and others were involved in the regulation of cell cycle and signal transduction.Conclusion These results will provide scientific foundation on screening the molecular biomarker for the diagnosis,treatment,and prognosis of the lung adenocarcinoma.

Aim To investigate the role of HIF-1 αin PC1 2 cell injury induced by quinolinic acid.Methods PC1 2 cells were treated with quinolinic acid at the do-ses of 2.5,5 and 1 0 mmol·L -1 ,the cell viability was determined by MTT reduction assay and LDH as-say,the intracellular levels of oxygen species was measured by assessing SOD and MDA levels,cell ap-optosis was determined by Hoechst 33258 staining,the intracellular distribution of HIF-1 αwas examined by HIF-1 αimmunostaining,and the expressions of HIF-1 α,Akt,p-Akt,Bcl-2 and Bax were determined by im-munoblotting analysis.Results Quinolinic acid in-duced cell injury in PC1 2 cells in a dose-dependent manner,and potentiated oxygen radical production and cell apoptosis.In addition,quinolinic acid enhanced HIF-1 αexpression and accumulation in nuclei.The p-Akt expression and Bax/Bcl-2 ratio was increased by quinolinc acid in PC1 2 cells.Conclusions HIF-1 αand Akt mediate qunolinc acid-induced cell apoptosis in PC1 2 cells.And cellular oxidative stress may con-tribute to the injury as well.

? AlM: To estimate the clinical significance of the microculture of humor and vitreous and vancomycin intraocular injection in treatment of suppurative endophthalmitis associated with intraocular foreign bodies.
?METHODS: Totally 65 patients with penetrating eye trauma and retained intraocular foreign bodies in emergency operation and intraocular injection from January 2012 to September 2014 were regarded as the study group, another 62 patients with penetrating eye trauma and retained intraocular foreign bodies in emergency operation without intraocular injection before August 2011 were regarded as the control group. Aqueous humor and vitreous humor were taken from each patient of the study group and the control group for bacteria and fungus cultivation. The study group was treated with 1mg vancomycin intraocular injection after operation, while the control group was not.
?RESULTS: The incidence of endophthalmitis in the control group was 16% ( 10 cases ) , while in the study group was 3% ( 2 cases ) , with significant difference between two groups (x2 =6. 32, P<0. 05). The aqueous humor germiculture in both groups was in low positive rates, the study group was 3% (2 cases) and the control group was 2% (1 case), with no difference between two groups (P>0. 05). The positive rate of vitreous humor germiculture in study group was 14% (9 cases), and the incidence of endophthalmitis was 3%. The positive rate of vitreous humor germiculture in control group was 11% (7 cases) and the incidence of endophthalmitis was 16%, with significant differences between two groups (P<0. 05).?CONCLUSlON: lntraocular foreign bodies treated with emergency operation and vancomycin intraocular injections can decrease the incidence of suppurative endophthalmitis and have a good vision prognosis for the second stage of operation.

Objective To evaluate the effect of heart rate control with esmolol on hemodynamics, inflammatory cytokines and clinical outcomes in patients with septic shock.Methods A prospective randomized controlled trial was conducted. The patients with septic shock admitted to Department of Critical Care Medicine of China-Japan Friendship Hospital from August 2014 to October 2016 were enrolled. After 24 hours of resuscitation and other therapy, they were randomly divided into two groups by sealed envelope. The patients in experimental group was treated with continuous intravenous esmolol infusion for 24 hours, initial dose was 0.05 mg·kg-1·h-1, and was titrated to decrease the heart rate by 20% as compared with the value at the time of enrollment or below 95 bpm, while isotonicsaline was given to control group through intravenous line at 3 mL/h for 24 hours. The differences in hemodynamic parameters at 0, 1, 4, 8, 12, 24 and 48 hours, as well as serum inflammatory cytokines and blood lactate (Lac) at 0, 12, and 24 hours, 28-day mortality were compared between the two groups.Results Seventy-six septic shock patients were admitted during the study, 12 were excluded forsuspicious acute myocardial infraction (AMI) or acute left heart failure or for the history of chronic obstructive pulmonary disease (COPD), 4 were quitted the study for being unable to tolerate the lowest dose of esmolol, giving up treatment, or death within 24 hours. Finally, 60 patients completed the study, 30 patients in experimental group, and 30 in control group. There were no differences in gender, age, acute physiology and chronic health evaluation Ⅱ (APACHE Ⅱ) score and infection source between two groups, indicating the general data between the two groups were balanced and comparable. The decrease in heart rate was more markedly in experimental group than that of control group at 1, 4, 48 hours after esmolol administration (bpm: 97.4±16.5 vs. 110.9±19.6, 95.2±15.3 vs. 105.1±17.9, 86.4±12.1 vs. 97.2±22.6, allP < 0.05), cardiac index (CI) at 8, 24, 48 hours was significantly increased(mL·s-1·m-2: 57.2±13.5 vs. 46.5±11.0, 57.7±15.7 vs. 48.7±14.7, 61.2±16.5 vs. 51.5±14.7, allP < 0.05), and stroke volume index (SVI) at 4, 8, 24 hours was significantly increased (mL/m2: 34.1±6.9 vs. 29.0±8.7, 35.0±6.1 vs. 28.8±9.6, 38.3±10.1 vs. 31.9±13.2, allP < 0.05). Interleukin-1β (IL-1β) at 24 hours in experimental group was significantly higher than that of control group (ng/L: 0.15±0.06 vs. 0.13±0.05,P < 0.01). There were no differences in mean arterial pressure (MAP), Lac, white blood cell (WBC), IL-6, IL-10, and tumor necrosis factor-α (TNF-α) between the two groups, and no difference in 28-day mortality between experimental group and control group was found (30.0% vs. 36.7%,χ2 = 0.300,P = 0.583).Conclusions It is efficient and safe to use esmolol for heart rate control in patients with septic shock after resuscitation. Esmolol can improve cardiac performance without affecting blood pressure and Lac, but has no effect on inflammatory cytokines and prognosis.

Objective To study the feeding arteries of sacral tumors with digital substraction angiography (DSA). Methods A total of 27 patients with sacral tumors, who were encountered at authors’ hospital during the period from January 2006 to December 2012 , were enrolled in this study. DSA of abdominal aorta, bilateral internal iliac arteries, median sacral artery and lumbar arteries was performed in all patients. The origins, branches of the feeding arteries were determined, and the results were analyzed. Results Of the 27 cases with sacral tumors, DSA demonstrated median sacral artery in 20 (20 arteries in total), lateral sacral artery in 22 (36 arteries in total), ilio-lumbar artery in 18 (27 arteries in total), lumbar artery in 10 (15 arteries in total), inferior gluteal artery in 3 (3 arteries in total) and superior gluteal artery in 2 (2 arteries in total). Conclusion In our series, the blood supply of the sacral tumors is mainly from the median sacral artery, lateral sacral artery, ilio-lumbar artery and lumbar artery. Occasionally, superior and inferior gluteal arteries also participate in the blood supply of the sacral tumors. For the evaluation of sacral tumors, attention should be paid to the presence of rare feeding arteries.