ObjectiveTo observe the dynamic changes of blood perfusion and hypoxic status by CT perfusion imaging and hypoxia imaging in patients with non-small cell lung cancer (NSCLC) after treatment with recombinant human endostatin (RHES). MethodsA total 15 patients with NSCLC were randomly divided into treatment group (n = 10) and control group (n = 5). The patients in treatment group continuouly received the treatment with RHES (7.5 mg/m2) by intravenous infusion for ten days, and CT perfusion imaging and hypoxia imaging were performed at day 1, 5 and 10,respectively. The time window' was observed with the blood perfusion status and hypoxic changes.ResultsIn the treatment group, capillary permeability surface (PS) and tumor to normal tissue (T/N) were firstly decreased, and then increased. Their lowest points occurred at about the fifth day. PS showed statistical significance compared with the first day (q1.5 = 12.05, P＜0.01 ) and no significance compared with the tenth day(q10.5 = 2.79, P=0.69), while T/N showed a significant difference between above time points (q1.5 = 73.81, q10.5 = 20.6, P = 0.00).Blood flow (BF) was firstly increased, and then decreased.Its highest point appeared at about the fifth day with statistical significance compared with the first and tenth day (q1.5 = 12.29, q10.5 = 10.48, P＜0.01 ). All the PS,BF and T/N between the fifth day in treatment group and the control group showed statistically significance (all P ＜ 0.01 ).Conclusions The time window of recombinant human endostatin improving blood perfusion and hypoxic status in non-small cell lung cancer is within about one week after administration.

Sixty four patients undergoing endoscopic sinus surgery were randomly divided into two groups.In nimesulide group (n=32) patients were given nimesulide capsule 100 mg after surgery and 32 patients in control group were given 100 mg vitamin C as placebo.The visual analogue scale (VAS) was used to evaluate the degree of pain during withdrawing nasal packing.The VAS value of the nimesulide group was 2.8±1.1 3 h after surgery and 2.7±1.2 during with drawing nasal packing,that of control group was 6.7±0.6 and 8.3±0.6,respectively (both P<0.01).The results revealed that nimesulide had a siguificant analgesic effect in endoscopic sinus surgery.

Objective To compare the clinical value of 18F-FDG PET imaging and 99Tcm-MDP whole body bone imaging in detection of bone metastases. Methods 43 patients were undergone 18F-FDG PET and 99Tcm-MDP imaging within 2 weeks. 28 of them were with confirmed bone metastases by other examinations or follow-up and the remaining 15 were confirmed without bone metastases. The results of the 2 different modalities were analyzed. Results Among 28 patients with confirmed bone metastases, PET and MDP accurately diagnosed 26 and 27, respectively. The sensitivity of them were 92.9 %(26/28), 96.4 %(27/28), Among the remaining 19 cases without bone metastases, PET and MDP correctly gave 14 and 8 negative results, respectively. The specificity of them were 93.3 %(14/15), 53.3 %(8/15), and accuracy of them were 93.0 %(40/43), 81.4 %(35/43). The differences between specificities and accuracies of the two methods were significant, while no significant difference between the sensitivities of the two methods. Conclusion For the detection of bone metastases in patients with malignant tumors, 18F-FDG PET showed a similar sensitivity but better specificity and accuracy compared with 99Tcm-MDP bone scan. For patients with suspected bone metastases, negative finding or single hot spot in 99Tcm-MDP imaging, 18F-FDG PET imaging was recommend as a further and complementary assessment of bone metastases.

OBJECTIVE:To standardize periooperative prophylactic application of antibiotics. METHODS:According to the characteristics of orthopaedic and parenchyma surgery,classifying evaluation table of typeⅠincision infection risk was designed sci-entifically and rationally. The individual application of antibiotics in surgery patients had been achieved through infection risk evalua-tion. High risk typeⅠincision patients used antibiotics rationally and low risk patients seldom used or didn’t use at all. RESULTS:Through using infection risks classifying table,the rate of antibiotics prophylactic application in typeⅠincision drops from 74.10%to 28.68%,and and the per capita duration of antibiotics prophylactic application shortened from 4.23 d to 2.21 d. The postopera-tive infection rate remained the same. CONCLUSIONS:Through infection risk classifying evaluation,individual application of anti-biotics can be achieved in surgery patients,so as to promote rational use of antibiotics for prophylactic use,reduce antibiotics dos-age and antibiotics abuse under the condition of controllable surgery infection.

Dendritic Cell Sarcoma, Interdigitating ; Humans ; Lymph Nodes ; Male ; Middle Aged

OBJECTIVETo investigate the synergistic effect of transforming growth factor-beta1 (TGF-beta1) and platelet-derived growth factor-BB (PDGF-BB) on the expression of integrin beta3, in periodontal membrane of rat orthodontic tooth.

METHODSAn orthodontic tooth movement model was established. Up to 32 experimental rats were randomly divided into four groups according to a random number table. The four groups were injected with 1% PBS, TGF-beta1 (5 ng), PDGF-BB (10 ng), and combined TGF-beta1 (5 ng) and PDGF-BB (10 ng) in the buccal submucosal, respectively. The volume injected in each group was 0.1 mL. The animals were then sacrificed on the 10th day. The left maxillary first molar and periodontal tissue were taken. Different expressions of integrin beta3 were detected in periodontal tissues through immunohistochemistry. Mean optical density (OD) values of the positive fields were examined. The data obtained were analyzed through ANOVA. The data followed normal distribution, and were compared via t-test.

RESULTSCompared with the control groups, the expression of integrin beta3 was higher in the experimental groupin tension sides (P < 0.01). Significant differences in tension sides between the single-injection groups and the combined group were observed (P < 0.01). Compared with the control groups, the expression of integrin beta3 was higher in the experimental group in compression sides (P < 0.05). In addition, there was no significant differences in compression sides between the single-injection groups and the combined group (P > 0.05).

CONCLUSIONIn terms of local regulatory factors, TGF-beta1 combined with PDGF-BB enhance the expression of integrin beta3 in the periodontal membrane and accelerate periodontal remodeling. The synergistic effect of the two growth factors is better than the single growth factor.

Immunohistochemical technique was an essential tool of conventional diagnosis,therefore,the application of immunohisto- chemistry in reformation of pathology laboratory teaching would boost pathological experimental teaching standards to a higher level.

Objective To approach the correlation between angiopoietin-2 (Ang-2) levels and degree of lung injury and prognosis and its clinical significance in patients with acute respiratory distress syndrome (ARDS). Methods A prospective observation was conducted. Fifty-three ARDS patients admitted to Department of Critical Care Medicine of Third Affiliated Hospital of Anhui Medical University from January 2012 to March 2014 were enrolled. According to the criteria of the Berlin Definition of ARDS,the patients were divided into mild group (n=15),moderate group(n=22)and severe group(n=16). Meanwhile,ARDS patients were further divided into survival group(n=29)and non-survival group(n=24)according to 28-day outcomes. Twenty cases of non-ARDS patients were served as control. The acute physiology and chronic health evaluationⅡ(APACHEⅡ)score,sequential organ failure assessment(SOFA)score,oxygenation index(PaO2/FiO2),lung injury score(LIS)were recorded within 24 hours after admission. And the plasma levels of Ang-2,interleukin-6(IL-6)and C-reaction protein (CRP)were measured. The independent risk factors of ARDS were analyzed by univariate and multivariable logistic regression. Receiver operating characteristic curve(ROC)was plotted to evaluate the value of Ang-2 in predicting ARDS. Results Compared with non-ARDS group,APACHEⅡ score,SOFA score,LIS score,mortality were significantly increased,PaO2/FiO2 was significantly decreased,and plasma Ang-2,IL-6,CRP were significantly elevated〔APACHEⅡscore:20.7±5.0 vs. 14.1±5.3,SOFA score:7.7±3.5 vs. 3.5±2.1,LIS score:1.69±0.71 vs. 0.28±0.27,PaO2/FiO2(mmHg,1 mmHg=0.133 kPa):159.5±61.3 vs. 394.0±63.2,mortality:45.3%(24/53) vs. 20.0%(4/20),Ang-2(μg/L):4.73(2.59,6.99)vs. 1.22(0.61,1.52),IL-6(ng/L):56.50(27.15,139.90)vs. 13.05(4.38,15.55),CRP(mg/L):95.75(41.74,189.72)vs. 10.56(3.92,21.36),P<0.05 or P<0.01〕. Each index increased or decreased more significantly with the aggravation of the disease. It was shown by correlation analysis that the plasma levels of Ang-2 was significantly positive correlated with IL-6(r=0.468,P=0.000),CRP(r=0.492,P=0.000),APACHEⅡscore(r=0.560,P=0.000),SOFA score(r=0.508,P=0.000)and LIS score (r=0.588,P=0.000),significantly negatively correlated with PaO2/FiO2(r=-0.685,P=0.000). Factors, APACHEⅡ score,LIS score,PaO2/FiO2,Ang-2 and IL-6 founded statistical significance in univariate analysis were analyzed using multivariable logistic regression. High APACHEⅡscore at admission〔odds ratio(OR)=1.316, 95% confidence interval(95%CI)=1.040-1.633,P=0.022〕and increased plasma Ang-2 levels(OR=1.287, 95%CI=1.041-1.760,P=0.038)were the independent prognostic factors for the 28-day mortality in ARDS. The area under the ROC curve of Ang-2 was 0.964,the optimal critical value of Ang-2 was 1.79μg/L,the specificity was 90.0%,and sensitivity was 92.5%. Plasma levels of Ang-2 was better in predicting ARDS than APACHEⅡscore, SOFA score and IL-6. Conclusions The plasma level of Ang-2 was significantly increased in patients with ARDS. The plasma level of Ang-2 was correlated with the severity of acute lung injury and had important prognosis evaluation.

Objective To investigate safety and efficiency of anti-coagulation therapy in patients with high-risk of bleeding and multiple organ dysfunction syndrome (MODS) during continuous veno-venous hemofiltration (CVVH). Meth-ods Forty patients with high-risk bleeding MODS during CVVH in our hospital were divided into heparin-free group (A group) and low-dose heparin group (B group). Blood coagulation function, platelets counts, blood urea nitrogen, serum creati-nine, PaO2/FIO2 and Apache Ⅱ scores in two groups were tracked before treatment and 24 h, 48 h after treatment. Filter lifespan, median ventilation time, ICU admission time and bleeding complications were observed. Results (1)There was significant difference in levels of blood urea nitrogen, serum creatinine, PaO2/FIO2 and ApacheⅡscores at 24 h, 48 h after treatment between in low-dose heparin group and those in heparin-free group (P＜0.05). (2)Levels of activated partial thromboplastin time(APTT), thrombin time (TT) were prolonged. Platelets count were significantly lower at 24 h after treat-ment than that before treatment in low-dose heparin group. Levels of APTT, TT and platelets count had no changes with pro-longed time of CVVH therapy.(3)Average ventilation time, ICU admission time were obviously shorter in low-dose heparin group than that in heparin-free group. Filter lifespan was significant longer in low-dose heparin group than that in heparin-free group, (P＜0.05).(4)Bleeding in skin and mucosa was observed in 1 case in low-dose heparin group without other se-vere bleeding complications. Conclusion The results of monocentric study show that low dose of heparin ensure smooth op-eration of CVVH in patients with MODS and high-risk bleeding. The clinical application is safe and efficient.

Objective:To observe the effect of thoracic infusion of pseudomonas aeruginosa injection in malignant pleural effusion. Methods:A total of 90 patients with malignant pleural effusion were randomly divided into treatment group (31 cases),control group A (29 cases) and control group B(30 cases). Treatment group was treated with pseudomonas aeruginosa through intrathoracic infusion. Control group A and B were respectively treated with cisplatin and interleukin-2 through intrathoracic infusion. The clinical efficacy and adverse reaction were compared among the three groups. Results:The total effective rate of treatment group was 80.6%,the total effective rates of the control group A and B were 51.7%and 56.7%respectively.Compared with that of contral groups, the total effective rate of treatment group was higher, and the differences were statistically significant (P<0.05). The incidence of serious side effects and toxicity was lower in treatment group than in control groups. Conclusion:The effect of thoracic infusion of pseudomonas aeruginosa injection for malignant pleural effusion is significant, and the adverse reaction is mild. Thus it is worth to be promoted clinically.