Objective: To investigate relationships among Cognitive performance,cognitive styles and Neuroticism.Methods: Experimental cognitive tests were administered to 30 Highly and 30 Lowly neurotic individuals under tightened and relaxed cognitive conditions.Results: Highly and Lowly neurotic individuals did not appear any differences in total scores,but significant differences in scores of tightened-relaxed cognitive styles.Highly Neurotic individuals mostly tend to be relaxed cognitive style,and Lowly Neurotic individuals to be tightened cognitive style.Conclusion: Neuroticism does not relate with total scores of cognitive performance under tightened and relaxed cognitive condition,but with tightened-relaxed cognitive styles.

Gastric cancer has high heterogeneity,and the traditional histopathologic classification has a limited significance for clinical work.Along with the dramatic development of molecular detection technology,it may be much more helpful for the treatment and prognosis to use the molecular classifications.Recently,there have been many researches on the molecular classification of gastric cancer,such as Tan type,Lei type,clonality type,The Cancer Genome Atlas (TCGA) type,Asian Cancer Research Group (ACRG) type,and so on.All of these molecular classification methods have respective advantages and disadvantages.

Clinicopathological parameters are important to predict the prognosis of esophageal squamous cell carcinoma (ESCC),they mainly include TNM stage related indexes of the tumor,tumor length,vessel and nerve invasion, tumor budding, peripheral blood cells, etc. To predict the prognosis of ESCC patients accurately is the prerequisite of precise treatment and the key to improve the patients survival rate and survival quality.

Objective To identify endoscopic and the endoscopic ultrasonography (EUS) features of esophageal tuberculosis.Methods We retrospectively analyzed the data of 39 cases (mean age 50.7) of esophageal tuberculosis diagnosed by endoscopy and EUS in past 6 years.Results A total of 29 lesions were found in the middle part of esophagus,and 5 in upper and lower part,respectively.The lesions under endoscope demonstrated as protrusion in 30 and ulceration in 9.EUS found esophageal wall thickness in 9 cases,intra-wall occupying lesion in 17,mediastinum occupying lesions involving esophagus in 13,and calcified lymph nodes in mediastinum which was integrated with esophageal outer wall in 28 cases.Conclusion The esophageal tuberculosis occurs mainly in the middle part of the esophagus,and appears as protrusion and ulceration under endoscopy.EUS can find occupying lesions intra-or out of the esophageal wall,and full layer thickness,which can accompany calcified lymph nodes in meidastinum,and can be the basis of diagnosis.

The relationship of medical papers and growth tendency with medical and health funds in different countries of the world was studied by analyzing SCI-covered medical papers published in 2007-2016,which showed that medical and health field was one of the research hotspots in the world,the number of papers published by the top 10 countries showed a growth tendency,their medical and health funds were closely related with the production of scientific papers (r=0.99),and the compound growth rate of medical and health funds was closely related with that of the number of scientific papers (r=0.91).

Objective:To study the influence of metformin and paclitaxel in the proliferation and apoptosis of human ovarian cancer SKOV3 cells in vitro, and to clarify the synergistic effect of metformin and paclitaxel. Methods:The ovarian cancer SKOV3 cells were divided into blank control group, different concentrations (0.01, 0.50, 1.00, 5.00, 10.00mmol·L-1) of metformin groups and combined treatment groups(metformin combined with paclitaxel with different concentrations).The inhibitory rates of proliferation of SKOV3 cells after treated with different concentrations of metformin were detected by MTT method.The apoptotic rates of SKOV3 cells after treated with different concentrations of metformin were measured by flow cytometry.The inhibitory rates of proliferation of SKOV3 cells after treated with metformin and paclitaxel were determined by MTT method.Results:The MTT results showed that the inhibitory rates of proliferation of SKOV3 cells in different concentrations of metformin groups were increased in concentration-and timedependent manner;there were significant differences compared with blank control group (P<0.05).The flow cytometry results showed that the apoptotic rates of SKOV3 cells in different concentrations of metformin groups were increased;compared with control group, with the increasing of concentrations of metformin, the apoptotic rates of SKOV3 cells in experimental groups 48 h after treatment were increased significantly (P<0.05);the percentages of SKOV3 cells in G0/G1 phase were decreased with the increasing of metformin concentrations(P<0.05) and the percentages of SKOV3 cells in G2/M phase were increased(P<0.05).The MTT results showed that the inhibitory rate of proliferation of SKOV3 cells in 1.00 mmol·L-1 metformin+paclitaxel group was higher than that in 0.50 mmol·L-1 metformin+paclitaxel group was higher than that in 0.50 mmol·L-1 metformin+paclitaxel group(P<0.05),and the inhibitory rates of proliferation of SKOV3 cells in combined treatment groups were higher than those in paclitaxel alone groups(P<0.05).Conclusion:Metformin inhibits the proliferation of ovarian cancer SKOV3 cells through the induction of apoptosis.Metformin can enhance the cell proliferation inhibition of paclitaxel on ovarian cancer SKOV3 cells.The combination of metformin and paclitaxel has a synergistic reaction on SKOV3 cells.

Objective To assess the role of promyelocytic leukemia protein (PML)and P53 in the progression of esophageal squamous cell carcinoma(ESCC)and its precursor lesions. Methods Different expression patterns of PML and P53 of 241 cases of ESCC combined with adjacent precursors were analyzed by tissue array and immunohistochemistry and correlated with clinicopathological parameters. Results In ESCC and its precursor lesions, PML and P53 displayed positive or strong positive, while in normal esophageal epithelia, these proteins showednegative or stained positive only in parabasal cell layer. The expression level of PML was correlated with the depth of invasion of esophageal carcinomas (X2=29.461,P<0.001),lymph metastasis status(X2=15.226,P<0.001)and pTNMs(x2=26.956,P

Objective To identify the expression of DLK1 protein in different types of renal cell carcinomas and its correlations with pathological characteristics and metastasis. Methods Immunohistochemistry analysis was performed to evaluate the expression of DLK1 protein in 94 cases of primary clear cell renal cell carcinoma, 76 cases of papillary renal cell carcinoma, 45 cases of chromophobe renal cell carcinoma, 71 cases of distal metastatic and 24 cases of lymph node metastatic clear cell renal cell carcinoma, as well as 18 cases of normal renal tissue. The correlations of DLK1 protein expression with pathological characteristics were analyzed. Results DLK1 protein was expressed in proximal and distal renal tubular epithelial cells in all the normal renal cases. In contrast, DLK1 protein expression was lower in different types of renal cell carcinoma. The low or negative expression of DLK1 protein in clear cell renal cell carcinoma, papillary renal cell carcinoma and chromophobe renal cell carcinoma was 33.0% (31/94), 27.6% (21/76) and 33.3% (15/45), respectively. Compared to normal renal tissue, DLK1 protein expression was significantly down-regulated in renal cell carcinomas (P＞0.05), whereas there was no significant difference on DLK1 protein expressions among the different types (P＞0.05) of renal cell carcinomas. DLK1 protein expression was not correlated with sex (60 male and 34 female cases), age (≥55, 50 cases and 55, 44 cases), grade (41 cases in grade I, 9 cases in grade II, 21 cases in grade III and 23 cases in grade Ⅳ respectively) and lymph node metastasis (76 cases with and 18 cases without lymph node metastasis) in clear cell renal cell carcinoma (P＞0.05). There was also no significant difference among primary, lymph node and distal metastatic lesions of clear cell carcinoma (P＞0.05). Conclusions DLK1 protein expression is commonly down-regulated in different types of renal cell carcinomas. Down-regulation of DLK1 protein expression is not associated with pathological characteristics and metastasis in clear cell renal cell carcinoma.

Objective To understand the ecological developmental characteristics of rats in the epidemic areas of hemorrhagic fever with renal syndrome (HFRS) so as to provide a basis for effective control of HFRS.Methods Based on the China National Disease Surveillance Reporting and Management System,data of HFRS cases from 2010 to 2014 were collected and analyzed by retrospective analysis.Meanwhile surveillance data of rats were collected and the capture rates in different seasons,genders and districts were also analyzed.Results Totally 51,92,129,85 and 71 cases of HFRS were reported from 2010 to 2014.Most HFRS cases occurred from October to November which were 43,59,78,37 and 37,respectively.Totally 2902 rats were captured from 2010 to 2014.The five-year average capture rate was 4.87％ (2902/59610).The highest capture rate was 6.94％ (910/13107) in the third quarter and the outdoor capture rate (5.80％,1681/28987) was higher than that of indoor(3.99％,1221/30623,x2 =324.35,P ＜ 0.05).More male rats were captured than female rats and the overall proportion was 62.82％ (348/554) and 37.18％ (206/554),respectively.The outdoor rats were mainly Apodemus agrarius (556),Cricetulus triton (432),Rattus noruegicus (217),Mus musculus (211) and Sorex araneus (139),and the indoor rats were mainly Mus musculus (514),Rattus noruegicus (469) and Sorex araneus (181).The black rat disappeared and White-bellied rat appeared.Conclusions The rat density keeps higher all year round and the type of rats has become increasingly complex.Mixed living of indoor and outdoor rats increased the infection probability of different types of Hantavirus,which has an immediate impact on the spreading pattern of HFRS.

Objective To investigate the value of ultrasonic diagnosis on cervical lymph nodes metastasis regions and characteristics in thyroid carcinoma.Methods Ultrasound image of 290 patients with thyroid carcinoma were analyzed restrospectively.The cervical lymph node metastasis regions diagnosed by ultrasonography were compared with histopathologic results,and the ultrasound characteristics of metastasis lymph nodes were assessed.Results Among 290 patients,167 cases with cervical lymph node metastasis were comfirmed by pathology (57.6％),and 185 cases were detected by pre-operative ultrasound (63.8％).The region of thyroid carcinoma lymph node metastasis comfirmed by histopathology was most commonly the central region (54.1％),followed by the lateral neck (20.7％).The diagnostic rate of central region lymph node metastatic by pre-operative ultrasound was only 31.7％,which was sharply lower than that of lateral region (57.6％,P ＜0.05).However,the diagnostic specificity (72.8 ％) was apparently higher than lateral region (35.9％,P ＜0.05).The ultrasonic characteristics of metastatic cervical lymph nodes included rounded shape,absence of echogenic hilus,presence of calcitication,hyperechogenicity and cystic change.Conclusions The cervical central region is the predominant region for thyroid carcinoma lymph node metastasis,and ultrasound diagnosis on central region lymph node metastasis possesses positive specificity but negative sensitivity.Improving ultrasound diagnostic accuracy on central lymph nodes metastasis would be of important clinical significance.