Objective To study the situation of pathogenic bacteria of neonate infection in hospital,so can guide clinical doctors use antibiotic rationally. Method The secretions of 159 neonates′ umbilous and eye matter orders were collected to be used as the specimen and the drug susceptibility experiment was done using MIC and K-B methods together in 159 neonates with hospital infection.Results One hundred and eighty-nine pathogenic bacterias were isolated from 1613 specimens.According to our materials,staphylococci aureus was the most important pathogenic bacteria,then staphylococci heamolyticus,staphylococci epidermidis,encherichia coli ,enterobater cloucac ,klebsiella pneumoniae.MRSA- positive rate was 52.6%,ESBLs-positive in E coli was 21%,inklebsiella pneumoniae was 20%.Drugs of sensitivity for Gram positive coccus were vancomycin(0) clindamycin(8.5%) cipnofloxacin(12.2%);the drugs of sensitivity for Gram negative ord were imipenem (4.4%),cipnofloxacin(5.3%),amikacin(12.7%).Conclusion It is instructive that use antibiotic rationally for controlling neonate infection in hospital.

Bluetooth is a new widely accepted standard of short distance communication in personal area networks (PANs). By analyzing the communication process based on Bluetooth protocol and requirements of physiological electrical signal transmission, such operations are performed as the design of Bluetooth model for measurement of heart sound, the development of Bluetooth network communication library and the implementation of the model by programming.

This paper analyses the requirements of serial data communication interface between upper and lower hosts in a heart sound sampling system, and then introduces the system design scheme, schematic of hardware interface and source codes of upper and lower hosts. C8051F000 and personal computer adopted as the lower host and upper host respectively, C++ Builder and Windows API functions are also used to implement the applications.

Objective To unveil the current situation and bends of Keshan disease in Pingliang city of Gansu province, to evaluate the outcome of related prevention and control measures, and to provide scientific basis for further prevention and treatment of the disease. Methods According to the "the central allowance local public health special funds endemic disease prevention programs grams mountain monitoring programme" and "the diagnostic criteria for Keshan disease" (GB 17021-1997), between 2007 and 2009, local residents from nine monitoring points in Pingliang city of Gansu province were clinically examined, and electrocardiography(ECG) tracings and Xray were taken of suspected cases. Corn, wheat samples and hair samples of children, adults and women were collected, and selenium content of these samples was determined by 2.3-2-amino-naphthalene fluorescence method. Results A total of 5846 residents were surveyed in 3 years, 247 cases of Keshan patients were detected, with a detection rate of 4.23%(247/5846), of which potential cases of Keshan disease 214, the detection rate was 3.66% (214/5846); chronic Keshan disease 33 cases, the detection rate was 0.56% (33/5846); no acute type and subacute Keshan disease detected. A total of 764 abnormal ECG cases were detected, and abnormal detection rate was 13.07%(764/5846). Two hundred and seven cases of suspected patients were examined by chest X-ray, 80 cardiac enlargement cases were detected, the detection rate was 38.6% (80/207). The 262 hair samples of children, adults and women were analyzed, hair selenium was (0.279 ± 0.098)mg/kg. Of the 9 corn and 31 wheat samples collected, corn selenium was (0.0079 ± 0.0029)mg/kg; wheat selenium was (0.0104 ± 0.0078)mg/kg. Conclusions Overall Keshan disease is in a stable and subsided trend in Pingliang city of Gansu province, but there are still a number of potential chronic types, sporadic new cases, suggesting that the disease monitoring, comprehensive prevention and treatment of the patients are the focus.

Objective To study the expressions of casein kinase 2α(Ck2α),β-catenin, survivin in ovarian cancer tissue and analyze the relationships between them, and to explore the clinical application value. Methods Immunohistochemistry staining was used to detect the expressions of Ck2α,β-catenin and survivin in 8 cases of simple ovarian cysts tissue,8 cases of ovarian benign tumor tissue and 29 cases of ovarian cancer tissue;the correlations of the expressions of Ck2α,β-catenin,survivin in ovarian cancer tissue and their associations with the clinicopathologic characteristics were analyzed.Results The expression levels of Ck2α,β-catenin and survivin in ovarian cancer tissue were significantly higher than those in simple ovarian cysts tissue and ovarian benign tumor tissue(P<0.05);the Ck2αexpression level in ovarian cancer tissue was positively corelated with the expression levels ofβ-catenin and survivin(r=0.438,r=0.479,P<0.05);the expression levels of Ck2α,β-catenin and survivin in low-medium differentiation group were significantly higher than those in high differentiation group (P<0.05);the expression levels of Ck2α,β-catenin and survivin in stagesⅡandⅢ group were significantly higher than those in stage Ⅰ group(P<0.05).Conclusion The protein expression levels of Ck2α,β-catenin and survivin are increased in ovarian cancer tissue, and three are positive corelations between them;Ck2α,β-catenin and survivin may play an important role in the occurrence and development of ovarian cancer;the combined detection of them has important clinical value.

Objective To investigate the relationship between the antiproliferation effects of aloe-emodin on growth of gastric cancer cells and cell cycle arrest.Methods Human gastric cancer SGC-7901 cells were treated with 2.5,5,10,20,and 40 ?mol/L aloe-emodin for 1—5 d.The cell growth was determined by MTT assay.Cell proliferation and cycle distributions were analyzed by flow cytometry.Western blotting assay was used to detect the changes of cell cycle regulators,cyclins,and cyclin-dependent kinases(CDK).Results Aloe-emodin inhibited the growth of gastric cancer cells in a dose-dependent manner.Treatment of aloe-emodin resulted in cell cycle arresting at G2/M phase.Its molecular mechanisms involved the decrease of the expression of cyclin A and CDK2,the increase of the expression of cyclin B1 and CDK1.Conclusion One of the antitumor mechanism of aloe-emodin on the growth of gastric cancer SGC-7901 cells is to arrest the cell cycle,which indicates that aloe-emodin has a potential value for the treatment of gastric cancer in clinic.

Objective To explore the community elderly depression effect on quality of life and provide the basis for the elderly mental health intervention. Methods Adopting stratified random sampling method, using the SF-12,CES-D and psychological capital questiennaire of elder to survey among 500 community elderly people and established the structural equation model. Results The age, degree of education, income situation, depression and the old psychological capital of the community elderly can be used to predict the quality of life, can explain 88.6%variance of life quality(P<0.05);depression on quality of life has a direct effect of-0.21(P < 0.05); depression through psychological capital indirect effect on quality of life for-0.64(P<0.05). Conclusions The elderly depression through psychological capital intermediary effect on the quality of life.

Objective: By taking the holism and differentiation concepts of traditional Chinese medicine (TCM) as the guidance, physical, mental and workplace factors were recruited in the observation of depression in employees, and were systematically classified to establish a workplace-related Liver Meridian-depression scale, for providing an evaluation index for depression in employees. Methods: NVIVO 11 software was adopted to assort ancient TCM classics. Based on the holism and differentiation concepts of TCM and well-developed scales, the item pool was determined via brain storm and screened by Delphi method after classified; a Wechat questionnaire was handed out 240 times via the online system 'Wen Juan Xing', and the results were statistically analyzed by the SPSS 17.0 version software. Results: Five dimensions consisting of 80 items were obtained after classification, and 60 items were selected by Delphi method; a total of 216 questionnaires were returned and the return rate was 90%. Of which, 215 questionnaires were valid ones, and the valid rate was 99%. By exploratory factor analysis (EFA), 44 items were obtained, and the aggregate split-half reliability coefficient was 0.922. The Cronbach's alpha coefficient for the five dimensions, i.e. Liver Meridian, relevant meridians, basic psychological activities, work cognition and emotional reactions, was respectively 0.841, 0.842, 0.914, 0.836 and 0.839, indicating a content internal consistency. The score of each item was highly correlated with the corresponding dimension, and the intercommunity was between 0.474 and 0.801. Nine factors were generated, 2 in the dimension of Liver Meridian, 3 in the dimension of relevant meridians, 2 in the dimension of basic psychological activities, 1 in the dimension of work cognition, and 1 in the dimension of emotional reactions, and the load of each factor was between 0.438 and 0.859. The reliability and validity of the scale were well examined. Conclusion: The scale can be applied to evaluate the qi activities of Liver Meridian and depression symptoms related to workplace.

The intraspecies quorum sensing system of Streptococcus mutans is involved with com genes family.ComE is a kind of response regulator and act as a promoter to the quorum sensing genes.S.mutans comE mutant strain IFD140?comE was constructed using the inframe-deletion system via twice homologous recombination.In current genetic studies of S.mutans,insertion duplication and allelic exchange mutagenesis techniques routinely create polar effects to downstream genes.In-frame deletions are essentially free of these polar effects because the mutation does not introduce any genetic markers.By PCR,sequencing and RT-PCR,it was confirmed that IFD140?comE has only 717bp deleted within the comE gene and the transcription of the downstream gene comD was not interfered.The research of the morphological characteristics indicated that IFD140?comE formed clumps and cells accumulated at the bottom of the glass tubes and light-microscopic observations displayed that the mutant strain formed significantly longer chains compared to those formed by the wild strain.The successfully construction of IFD140?comE lay a foundation for further quorum sensing research.

AIM: To study the changes in anterior chamber angle after phacoemulsification and foldable IOL implantation with ultrasound biomicroscopy.METHODS: Small-incision phacoemulsification and foldable IOL implantation were performed in 50 eyes of 46 senior patients, and the changes of anterior chamber angle were determined quantitatively by using ultrasound biomicroscopy before and one month after the surgery.RESULTS: In all patients, the angle was widened significantly one month after the surgery (P＜0.01). The measurements of TIA500 ( trabecular-iris angle at 500μm from the scleral spur) , AOD250 (angle-opening distance at 250μm from the scleral spur) and AOD500 (angle-opening distance at 500μm from the scleral spur) increased significantly after the operation ( P＜ 0.01). The mean post/pre-operative TIA500ratio, AOD250 ratio and AOD500 ratio were 1.65 (1.12-4.91),1.81 (1.06-2.67) and 1.65 (1.01-2.76), respectively. A significant negative correlation existed between preoperative and postoperative data.CONCLUSION: Small-incision cataract surgery deepens the anterior chamber and widens anterior chamber angle significantly in senior patients. The narrower the preoperative angle, the higher ratio of post/preoperative ratio found.