Objective To investigate the expressions of apoptosis associated protein 3 (APR3) and nuclear factor 3 of activated T-cell (NFAT3) in the tissue of epithelial ovarian tumors and its correlation with the clinicopathological features.Methods 92 patients with epithelial ovarian tumor were collected,23 cases with malignant tumor,24 cases with borderline tumor,45 cases with benign tumor.The expressions of APR3 and NFAT3 were detected by immunohistochemical methods,and the differences of different types of epithelial ovarian tumor were compared.The correlation of the expressions of APR3 and NFAT3 with the clinicopathological features of epithelial ovarian tumor was analyzed.The correlation of the expressions of APR3 with the expressions of NFAT3 in epithelial ovarian tumor was analyzed.Results The positive expression rate of APR3 in patients with malignant epithelial ovarian tumors (78.26％) was significantly higher than borderline tumors (41.67 ％) and benign tumors (22.22 ％),the differences were statistically significant (x2 =5.864,7.632,all P ＜ 0.05).The expression of APR3 in patients with malignant epithelial ovarian tumors was significantly correlated with differentiation,clinical stage,lymph node and abdominal organs metastasis and ascites (x2 =7.425,7.262,8.421,5.031,all P ＜ 0.05).The positive expression rate of NFAT3 in patients with malignant epithelial ovarian tumors (56.52％) was significantly higher than borderline tumors (29.17％) and benign tumors(17.78％),the differences were statistically significant (x2 =6.829,7.547,all P ＜0.05).The expression of NFAT3 in patients with malignant epithelial ovarian tumors was significantly correlated with differentiation,clinical stage,lymph node and abdominal organs metastasis (x2 =5.253,6.367,8.021,all P ＜ 0.05).The expressions of APR3 and NFAT3 in patients with malignant epithelial ovarian tumors were positively correlated (r =0.032,P ＜ 0.05).Conclusion The expressions of APR3 and NFAT3 in the tissue of malignant epithelial ovarian tumor obviously increase,are significantly correlated with differentiation,clinical stage,lymph node and abdominal organs metastasis and are positively correlated,and it may be correlated with the development and progression of malignant epithelial ovarian tumor.

Objective To cultivate,identify and sort bronchoalveolar stem cells(BASC)derived from normal adult mouse lung.Methods After enzymatic digestion of lung tissue with dispase and collagenase in combination,the Sca-1+ cells were isolated from the obtained pulmonary cells by magnetic cell sorting.These Sca-1+ cells were cultured in dishes coated with collagen and mouse fibroblast cell line Swiss-3T3 under a serum-free culture system for BASC,which were identified by the dual-color immunofluorescent staining clara cell specific antigen(CCA)and surfactant protein C(SP-C).Finally,these pure BASC were isolated by the flow cytometry.Results One lung of normal adult mouse could yield(1.6-1.8)?107 nucleated cells in this enzyme digestion procedure.The percentage of Sca-1+ cells we sorted from lung tissue was much higher than the unsorted [(87.3?5.9)% and(9.6?1.8)%,P

Objective To investigate the role of GABAB1 receptors in spinal dorsal horn neurons in the development of diabetic neuropathic pain (DNP). Methods Sixty pathogen free male SD rats aged 4 weeks weighing 150-170 g were randomly divided into 2 groups ( n = 30 each): control group and DNP group. Diabetes mellitus was induced by single intraperitoneal injection of streptozotocin 50 mg/kg. Blood glucose levels and paw withdrawal threshold to mechanical stimuli were measured at 3, 5 and 7 weeks (T1, T2, T3 ) after IP STZ/NS ( n = 10 each). The animals were sacrificed after PWL measurement. The lumbar segment of the spinal cord was removed for determination of the expression of GABAB1 receptors by immuno-histochemistry, RT-PCR and Western blot analysis. Results The blood glucose levels were significantly higher while the PWT was significantly lower at T1,T2 and T3 in group DNP than in control group. The expression of GABAB1 receptor mRNA and protein in spinal dorsal horn was significantly lower at T2 and T3 in DNP group than in control group. Conclusion The expression of GABAb1 receptors is down-regulated in spinal dorsal horn neurons in rats with DNP.

Objective To assess the changes of right atrial size and mechanical function after radiofrequency catheter ablation in patients with paroxysmal atrial fibrillation using real-time threedimensional echocardiography(RT-3DE), and to study the correlation between the changes of left atrial(LA)and right atrial(RA) volume and function. Methods Thirty-five patients with paroxysmal atrial fibrillation were undergone radiofrequency catheter ablation (RFCA) successfully. Transthoracic echocardiography (TTE),tissue Doppler imaging(TDI) and RT-3DE were performed before, 1 month and 3 months after procedure respectively. Late systolic volume and area of RA and LA,ejection fraction(EF) of RA and LA,late diastolic peak velocity of mitral valve inflow, tricuspid valve inflow and late diastolic peak velocity of mitral annulus and tricuspid annulus were recorded. Results The 3DE images of all patients were satisfied.LA max area and 3DE LA max volume were significantly reduced at 1 months and 3 months after procedure compared with basic stage [ ( 18.8 ± 6.3) cm2 vs (21.5 ± 6.2) cm2 , (38.8 ± 17.0) ml vs (46.1 ± 20.0) ml,P ＜ 0.05]. 3DE LA EF also declined markedly at 1 month after RFCA, and restored at 3 months later compared with baseline [(41.1 ± 13.7) % vs (51.7 ± 15.9) %, (41.1 ± 13.7) % vs (45.6 ± 18.3) %, P ＜0.05]. The size and mechanical function of the right atrial after procedure were no obvious changes. There were no evidently correlation between the changes of LA and RA volume and function. Conclusions RT3DE can provide a precise method to quantify the value of atrial volume and function. The LA size and volume are significantly reduced after RFCA in patients with paroxysmal atrial fibrillation, however, the RA size and function are no obvious changes.

Objective To evaluate cardiac function in fetuses with intracardiac hyperechogenic focus (ICEF) by tissue Doppler imaging(TDI).Methods Fetal echocardiography was performed in 335 fetuses for evaluation of fetal cardiac function with ICEF by TDI,two-dimensional,M-mode and pulsed Doppler echocardiography.The ratio between early ventricular filling(E-wave)and active atrial filling(A-wave)peak velocities at the level of the atrioventricularvalves as an index of ventricular diastolic function.TDI mode was used to measure the mitral and tricuspid valve annulus including Em,Am and Sm.The characteristics of fetal echocardiography of 119 fetuses with ICEF were compared with 137 normal fetuses.Results E/A and Em/Am were significantly lower in fetuses with ICEF than in control fetuses.Positive correlation was found between the velocity of orifice and annulus in controls.No systematic differences were found in cardiac dimensions,ventricular shortening fraction,Doppler and TDI systolic indices between groups.Conclusions TDI is feasible and reproducible to evaluate fetal ventricular function,and it can avoid the influence of fetal heart rates and preloading.Fetuses with ICEF show lower Em/Am values in the second to third trimester echocardiography,it might indicate cardiac diastolic dysfunction.

Objective To establish reference values of normal fetal heart conduction time intervals by tissue Doppler imaging(TDI)and pulsed Doppler(PD)echocardiography,and to assess their correlation with gestational-age and fetal heart rate.Methods One hundred and eighty-nine pregnant women underwent detailed echocardiographic examinations.Atrio-ventricular conduction time interval(AV)and the time interval from onset of ventricular contraction to the onset of atrial contraction of next cardiac cycle(VA)were measured by TDI and PD echocardiography.Results TDI-AV was(126.56±15.33)ms(95% CI 124.10～129.03 ms),TDI-VA was(285.22±24.53)ms(95% CI 281.27～289.16 ms),PD-AV was(127.42±12.88)ms(95% CI 125.35～129.49 ms),PD-VA was(287.42±25.19)ms(95% CI 283.37～291.47 ms).A paired t test revealed no systematic difference between the two approaches used to measure AV and VA.AV and VA were significantly positively correlated with gestational age,and significantly negatively correlated with fetal heart rate.Heart conduction time intervals were altered in fetus with paroxysmal arrhythmia.Conclusions This study established the normal values of fetal heart conduction time intervals.Prenatal determination of fetal heart conductional time intervals has important potential clinical utility in assessing fetal arrhythmia.

Objective: To investigate the inactivating effect of soap solution on rabies virus and to explore the concentration of soap solutions which could be effective in post-exposure prophylaxis (PEP) of rabies virus infection. Methods: The BSR and N2a cells were respectively infected by the mixture of different concentrations of soap solution and rabies virus CVS-11. Based on the direct immunofluorescent method (DFA) and reverse transcription PCR (RT-PCR), the inactivating effects of soap solutions on rabies viruse in BSR and N2a cells were detected, respectively. Results: This experiment established the BSR or N2a cells model in 24 well cell culture plates, and we found that the upper limit of soap solution concentration which BSR or N2a cells could tolerate was 1%. The inhibitory effect test of different soap solution on rabies virus showed that the 0.5% concentration of soap solution could completely inhibit the survival of CVS-11 strain in both the BSR and N2a cells, but the 0.1% concentration of soap solution could not inhibit the rabies viruses completely. Conclusions The 0.5%-1% concentration of soap solutions could inhibit the survival of CVS-11 strain in three minutes in vivo experiment.

Gut microbiome is closely related to human health. Changes in intestinal microbial composition promote the development of tumors. Specific intestinal microorganisms and their metabolites regulate host physiological functions and tumor microenvironment, significantly affecting the anti-cancer treatment response and its adverse events. Strategies targeting gut microbiome have shown promising prospects in diagnosis and treatment of cancer.

Objective:To establish a predictive model of lateral lymph node metastasis in patients with papillary thyroid carcinoma(PTC), and further to compare the diagnostic efficiency of this model with the suspected abnormal lymph node thyroglobulin in fine-needle aspirate fluid (FNA-Tg) for lateral lymph node metastasis.Methods:The preoperative clinical and ultrasonographic data of 110 patients (257 lymph nodes) who underwent PTC cervical lymph node dissection were retrospectively analyzed. According to the postoperative pathological results, they were divided into lateral lymph node metastasis and non-metastasis group. Regression analysis was used to screen out independent risk factors affecting lateral lymph node metastasis and establish a predictive model. The ROC curve was used to evaluate the diagnostic efficacy and the best diagnostic cut-off point.Results:Prediction model: Logit( P)=-2.987+ 2.189(S/L ratio of lymph nodes)+ 1.748(hilum absent)+ 2.030(hyperechoic)+ 1.849(vascular abnormalities). The sensitivity, specificity, accuracy and AUC of the prediction model in the diagnosis of lateral lymph node metastasis were 92.1%, 83.9%, 87.9% and 0.929, respectively. The Homser-Lemeshow goodness of fit test showed that the Logistic model has a good fitting effect. The sensitivity, specificity, accuracy, and AUC of FNA-Tg in the diagnosis of lateral lymph node metastasis were 87.4%, 95.4%, 90.3% and 0.968, respectively. The sensitivity, specificity, accuracy, and AUC of the combined diagnosis of the predictive model and FNA-Tg were 92.9%, 96.9%, 94.2% and 0.989, respectively. Conclusions:The model has a good predictive value for PTC cervical lymph node metastasis. Combined with FNA-Tg, it can improve its diagnostic efficiency and provide more valuable information for the decision-making of clinical surgical procedures.

Objective To investigate the feasibility of Multi-dimensional Visual Hand Function Rehabilitation Quantitative Assessment System in the assessment of hand function for stroke patients. Methods From November, 2017 to July, 2018, 17 stroke inpatients were assessed with Fugl-Meyer Assessment-upper extremities (FMA-UE) and the Multi-dimensional Assessment System. Results The results of Multi-dimensional Assessment System positively correlated with the score of FMA-UE (r = 0.609, P = 0.010). Conclusion The Multi-dimensional Visual Hand Function Rehabilitation Quantitative Assessment System can be used to assess the hand function for stroke patients quantitatively.