Objective To explore the polymorphisms of serotonin transporter gene-linked promoter region (5-HTTLPR) and cognitive function in patients with subcortical ischemic depression (SID). Methods A battery of neuropsychological tests including Hamilton Depression Scale (HAMD), Mini Mental State Examination (MMSE) and Montreal Cognitive Assessment (MoCA) were used to evaluate depression and cognitive function for all enrolled subjects. And the distribution frequency of 5-HTTLPR-promoter region polymorphism was detected by polymerase chain reaction-restriction fragment length polymorphism in 60 SID patients and 60 health controls. Results There were significant differences in 5-HTTLPR genotypes and alleles between SID group and control group (χ2=7.833, χ2=6.290, both P＜0.05).The SID group showed higher genotype SS than did the control group (58.3% vs. 23.3%) and higher allele S (68.3% vs. 52.5%) but lower genotype LL (16.7% vs. 23.3%) and allele L (31.7% vs. 47.5%). SID group had lower MoCA score than did the control group [(23.63±1.59) scores vs. (27.25±1.59) scores, t=12.44, P＜0.01]. Conclusions The polymorphism of 5-HTTLPR gene may play an important role as a nosogenesis of SID. The frequency of SS genotype may be associated with SID especially in females, having more cognitive impairment. The genotype LL and allele L may be a protective factor for depression symptoms of SID.

The experiences of surgical treatment of valvular heart diseases in children were reported. Cardiac valve operations were performed in 87 children including 58 males and 29 females between the age of 4 to 14 years ( mean 10 2 years) . Of the 87 patients, 36 underwent mitral valve replacement, 13 aortic valves replacement, 6 mitral and aortic valves replacement, 13 aortic valvuloplasty, and 29 mitral valvuloplasty. Associated cardiac lesions were simultaneously managed. Postoperative complications included low cardiac output syndromes in 7 patients, respiratory failure in 3, and arrhythmia in 5 patients. The operative mortality was 4 60% (4 patients). Follow up was 0 5 to 14 5 years (mean 6 51 years). Late mortality was 3 61% (3 patients). The valvuloplasty operations were first choice for cardiac valve operations in children. It was advisable to use cardiac valve prosthesis of larger size(adult) for valve replacement in children.Anticoagulation with Warfarin was routinely used and the treatment of rheumatic fever should be emphasized postoperatively.

Objective To identify homogenous clones of S.flexneri 2a, using gene distribution polymorphism of Shigella enterotoxinl and Shigella enterotoxin2 in a shigellosis outbreak by S.flexneri 2a. Methods 93 strains of S.flexneri 2a isolated from different areas, at different time were detected by Shigella enterotoxin1 and Shigella enterotoxin2 gene polymerase chain reaction to identify genetic type of S.flexneri 2a. Results The 93 strains of S.flexneri 2a were divided into 4 clones: ShET1(-)/ShET2(+)for 12 strains,ShET1(+)/ShET2(-)for 14 strains,ShET1(+)/ShET2(-)for 59 strains, ShET1(-)/ShET2(-)for 8 strains. Conclusions It is believed that Shigella enterotoxin1 and Shigella enterotoxin2 gene PCR analysis is a simple method for the primary screening of S.flexneri 2a.

Objective To prospectively study the main risk factors of variceal bleeding in cirrhotic patients. Methods Fifty-seven patients with liver cirrhosis and esophageal varices who had never experienced variceal bleeding were followed up for 12 months. The patients underwent measurements of esophageal variceal pressure by non-invasive endoscopic balloon technique. The endpoint of the study was the presence of a variceal hemorrhage. The relationship between variceal hemorrhage and endoscopic findings including varices, variceal pressure, Child-Pugh status, ascites, and etiology of cirrhosis was studied. Results Thirty-four patients (59.6% ) developed a variceal hemorrhage. In univariate analysis, the level of variceal pressure (P= 0. 001), the size of varices (P=0. 006), and the endoscopic red color sign on the variceal wall (P=0. 012) predicted higher risks of variceal hemorrhage. The multiple logistic regression revealed that variceal pressure was a major predictor of the risk for a first variceal bleeding (OR=2. 817, P=0. 003). The area under the receiver operating characteristic (ROC) of variceal pressure for predicting variceal bleeding was 0. 98, and the variceal pressure cutoff value was 25.3 mm Hg (1 mm Hg=0. 133 kPa) with both specificity and sensitivity of 91 %. Conclusion The level of variceal pressure is a major predictor for variceal bleeding in cirrhotic patients.

Objective To develop the multidimensional sub-health questionnaire of adolescents(MSQA)which is suitable for Chinese adolescents.Methods The original questionnaire was composed of 101 items related to physical and psychological domains and six dimensions.Different statistic methods were taken to do item analysis,reliability and validity evaluation.Results The final MSQA was composed of 71 items.The test-retest correlation coefficient,Cronbach's ? coefficient and split-half reliability coefficient of the questionnaire were 0.868,0.958,0.942,respectively.Taking SCL-90 and CMI as criterion,the criterion-related validity were 0.636,0.649,respectively.The structure of MSQA from factor analysis identified with the original designs.Both of scores and the number of items,which sub-health symptoms lasted for more than one month,on physical,psychological domains and overall questionnaire in first test,were higher than the later one among freshmen.Scores and the number of items for grade one high school students were lower than those of grade three students.Conclusions The MSQA is successfully developed with good reliability and validity coefficient,and can be promoted in large sample population.

Objective To evaluate the effect of behavioral intervention on changing knowledge, attitude and practice (KAP) about AIDS among the migrant workers in railway construction sites. Methods Health education and behavioral intervention on AIDS were carried out among the migrant workers for 4 to 5 months, who were clusteredly sampled from two railway construction sites, in the forms of mini-media, peer education and so on. Questionnaire survey was conducted among them before and after the intervention. Results The results showed that the knowledge awareness of the migrant workers on the transmission routes, preventions of AIDS and self-protection consciousness increased significantly by comparing the indexes of 943 pre-intervention with those of 671 post-intervention workers. After intervention procedures, the rate of those workers who would adopt negative attitudes towards the HIV infected persons because of fear and discrimination was decreased from 9.8% and 10.5% to 6.3% and 3.5% (both P

Objective:To investigate the relationship among childhood abuses,social support and non-suicidal self-injury (NSSI) in adolescents,and to examine the mediating effect of social support on the relationship between childhood abuses and non-suicidal self-injury.Methods:A total of 9704 middle school students were selected from junior and senior middle schools in Zhengzhou,Guiyang city.The Childhood Trauma Questionnaire-28 item Short Form (CTQ-SF),Non-Suicidal Self-Injury Questionnaire,Social Support Scale for University Students and Multidimensional Sub-health Questionnaire of Adolescents (MSQA) were used to measure the different types of adverse childhood experiences,non-suicidal self-injury,social support and psychopathological status.Results:The CTQ-SF-scores were positively correlated with non-suicidal self-injury scores (r =0.20,P ＜ 0.01) and negatively correlated with social support scores (r =-0.22,P ＜ 0.01).The total scores and factor scores of social supportscale were negatively correlated with non-suicidal self-injury scores in adolescents (P ＜ 0.01).When control of the area,grade,self-reported learning burden,self-reported grades and psychological pathology symptoms,social support in childhood abuse and the relation between the suicide self-injury the mediation effect by the single factor of 17.04％ to 12.57％,the mediation effect of three subcomponents accounted for 7.12％ ～ 13.85％.Conclusion:It suggests that social support may play a mediating effect on the relationship between childhood abuses and non-suicidal selfinjury.

Objective To evaluate the clinical reliability and feasibility of computerized endoscopic balloon manometry in vitro and in vivo, in measurement of pressure of esophageal varices. Methods Computerized endoscopic balloon manometry was used to measure the pressure of variceal model with different diameter (3 mm, 6 mm and 8 mm) and intraluminal pressures (ranging from 8 to 36 mm Hg), and the findings were compared with actual pressures. The technique was also applied in 23 patients with liver cirrhosis and esophageal varices, and its correlation with hepatic venous pressure gradient and other factors related with varices bleeding. Results The study in vitro showed that the measured intraluminal pressure was correlated significantly with the actual value ( r ≥ 0. 993, P ＜ 0. 001 ) without obvious measurement bias(95% CI = -0.13 cm H2O to 0. 33 cm H2O). The measurement in 23 patients were success with little variation coefficient (r≥0. 998) between repeated procedures. Regression analysis showed a good correlation between variceal pressure and hepatic venous pressure gradient (r=0. 858, P ＜ 0. 001 ). A higher variceal pressure was strongly associated with presence of previous bleeding episodes, vascular diameter and presence of red color signs, but did not correlate with the parameter of Child-Pugh classification ( t = 0. 31, P =0. 76). Conclusion Computerized endoscopic balloon manometry is reliable and feasible to examine esophageal variceal pressure, and is very likely to be a valuable clinical index for variceal bleeding.

Abstract Bisphenol A (BPA) is a high yield chemical and widely present in daily necessities and catering products. It is one of the environmental endocrine disruptors with estrogen like effects that may affect the immune system. This paper summarizes the most recent epidemiological studies on the relationship between BPA exposure and asthma in children at home and abroad, and briefly outlines the pathogenesis of BPA induced asthma in children, aiming to provide inspiration and directions for future research.

Objective To investigate the incidence of early postpartum depression , postpartum depression occurs im-pact analysis related factors. Methods Self-Rating Anxiety Scale(SAS), Self-Rating Depression Scale(SDS), the Ed-inburgh Postnatal Depression Scale (EPDS) and family cohesion and adaptability scale(FACES) on 350 cases of prim-ipara prospective study. Results 51 cases of postpartum depression, the rate was 14.57%, Age of light, high level of education, poor neonatal cases, non-exclusive breastfeeding, household income, poor mothers were more likely to postpartum depression(P<0.05). Postpartum depression, maternal prenatal SAS, SDS scores and scores of family cohe-sion and adaptability normal pregnancy, the differences were statistically significant (P<0.05). Education, prenatal anxiety, prenatal depression, family adaptability and neonatal score were the main influencing factors of postpartum depression(P<0.05). Conclusion Initial prone to postpartum depression, prenatal psychological state, family support, education and neonatal cases of postpartum depression significantly affected , should strengthen targeted interventions to reduce the incidence of postpartum depression.