Objective To investigate the incidence of drug resistance among new and retreatment TB patients from special hospital.Methods Totally 500 smear positive TB patients from June 2013 to December 2014 in Beijing Chest Hospital were enrolled.Phenotypic susceptibilities to cultured isolates were analyzed in 15 anti tuberculosis drugs by MGIT 960,include Isoniazid (INH),Rifampicin (RFP),Streptomycin (STR),Ethambuto (EMB),Kanamycin (Km),Amikacin (Am),Capreomycin (Cm),Ofloxacin (Ofx),Levofloxacin (Lfx),Moxifloxacin (Mfx),Paza-aminosalicylate (PAS),Protionamide (Pto),Linezolid (Lzd),Ethionamide (Eto),Pyrazinamide (PZA).Results A total of 500 TB cases were enrolled.71 samples among these were NTM infection and 12 samples were contaminted.The rest of 417 of cases infected with Mycobacteriuma,and the rate of drug resistance was 47.2％ (192/417) and the MDR rate was 28.2％ (120/417).The retreatment was significantly higher than that of the new in any drug resistance rate and MDR rate (P =0.000).100 of the retreatment isolates and 50 of the new isolates with Mycobacteriuma were selected to do the drug susceptibility test in 11 subsequent anti tuberculosis drugs (include:PZA,Am,Km,Cm,Ofx,Lfx,Mfx,PAS,Pto,Lzd,Eto).Five cases were contaminated,and in the rest of the cases,48 was the new and 97was the retreatment.The rate of the drug resistance to PZA,Am,Km,Cm,Ofx,Lfx,Mfx for the retreatment were significantly higher than the new (P ＜ 0.05).The rate of drug resistance to PAS,Pto,Lzd and Eto for the new and reteartment were no markedly differential in statistics.Conclusion This study further confirmed the rate of drug resistance in retreatment cases is higher,and the management of tuberculosis patients should be further strengthened.

Objectives To establish a sensitive and special method for the detection of Ureaplasma urealyticum(Uu) using PCR microplate hybridization (PCR MPH). Methods A primer of ureasea gene was labeled by biotin. The amplification product was captured on streptavidin coated microplates, then products were quantified by hybridization with a digoxigenin labeled internal oligonucleotide probe. After revelation with an anti digoxigenin alkaline phosphatase coupled antibody(anti DIG AP), the amount was determined by optical reading. At the same time, PCR MPH was compared with Bio Merieux Mycosplasma IST. Results A method of PCR MPH for detecting Uu DNA was established. The morbidity among three groups for detecting 158 clinical samples was analysed. 65 were detected by PCR MPH and 56 by culture.Conclusion The results showed that this assay is rapid, sensitive, specific, and accurate, and is of value in clinical therapy.

Wireless Local Area Networks has been used increasingly in recent years. The technology is mainly used in a-cademia (such as campus)、medical areas 、 manufacturing 、 Storage industry 、 public area、serving industry ,and so on. And the related technologies are making progress all the time. This article analyzes the development of related standard 、the structures 、security and other descriptions of Wireless Local Area Networks, paying attention to the uses of the technology in medical areas .

OBJECTIVE: Apolipoprotein (Apo) E- ε 4 is the first identified important susceptible gene of late-onset family and sporadic Alzheimer disease. Apo E E4 or ε 4 chained other genetic products probably play a certain actions in occurrence of Alzheimer disease, but their biological basis is unknown.To explain the relevant biological mechanism between ApoE and Alzheimer disease is still the key in next study.DATA SOURCE: Computer Medline database is used to search the relevant papers from January 1978 to January 1999, with the words of "develop", "ApoE" and "Alzheimer", limited in English version. Simultaneously, the relevant papers are looked up from China Journal Databasefrom January 1978 to December 2003, with the words of "ApoE, Alzheimer disease and development", limited in Chinese version.STUDY SELECTION: Preliminary examination is done to the data. Inclusive criteria: relevant papers on ApoE gene and Alzheimer disease, including the study of both animal experiment and clinical basic research.Exclusive criteria: repeated study, summarized and Meta analysis papers.DATA EXTRACTION: Totally 55 relevant papers are collected, of which, 20 papers are included and 33 papers are excluded due to repeated experiment and summarized papers.DATA SYNTHESIS: Of 20 experiments, 16 experiments explain that ApoE E4 or ε 4 chained other genetic products probably play a certain actions in occurrence of Alzheimer disease and 4 researches propose that ApoE- ε 4 is the susceptible gene of Alzheimer disease.CONCLUSION: It is viewed in majority at present that ApoE genotype determination cannot substitute any clinical and imaging diagnostic method, which is probably onlya kind of assistant diagnosis to improve the specialty in clinical diagnosis. Beingthe susceptible gene of Alzheimer disease, ApoE- ε 4 is the important discovery in its research no doubt, but,many relevant questions are still at experimental and hypothesis stages. In the future, the great consideration should be still drawn on ApoE genotype determination of Alzheimer disease.

Objective To investigate the effect of aminoguanidine and tienam on bacterial translocation in mice with acute necrotizing pancreatitis (ANP) and the preventive and curative effect on pancreatic infection. Methods 50 SD mice were randomly divided into 5 groups, including group A: normal control (n=10), group B: ANP group (n=10), group C: aminoguanidine treatment group (n=10), group D: tienam treatment group (n=10), and group E: aminoguanidine plus tienam treatment group (n=10). ANP was induced by intrapancreatic injection of 5% sodium tanrocholate (2.5 ml/kg). Aminoguanidine (100 mg/kg) was injected intraperitioneally 30 minutes after ANP induction, tienam (60 mg/kg) was injected intraperitioneally 6 hours after ANP induction. The mice were killed at 48 hours, and serum amylase, serum D- lactate, pancreatic MPO were measured. Pathological alterations in the pancreas were examed. The pancreas, liver, blood, mesenteric lymph node and ascites were collected for microbiological study. Results In group C and E, the levels of serum amylase were 91173.30±199.73) U/L and (1075.00±200.40) U/L; the serum D-lactate were (7.165±1.2533) μg/ml and (6.980±1.060)μg./ml; the pancreatic MPO were (0.8035±0.0711) U/g wet film and (0.7765±0.0843 ) U/g wet film; the average bacterial positive rates were 20% and 16%. In group B, the serum amylase was (2234.60±692.06 )U/L;the serum D-lactate was (12.408±1.779)μg,/ml, the pancreatic MPO was (1.5942±0.1965) U/g wet film; the average bacterial positive rate were 60%. The differences between group C, E and group B were statistically significant (P＜ 0.05). In group D, the pancreatic MPO was (0.8002±0.0603 ) U/g wet film and the the average bacterial positive rate was 18%, and they were statistically different when compared with those of group B (P±0.05). While in group D, the serum amylase and D-lactate was not statistically different when compared with those of group B (P＞0.05). There were lamellar necrosis in the parenchyma, hyperaemia and leukocytic infiltrate in the pancreatic mesenchyma in the ANP group, while no leukocytic infiltrating in group C, D, E was found. Conclusions The aminoguanidine and tienam might decrease gut bacterial translocation and prevent pancreatic infection in ANP.

The evaluation of biomaterial biocompatibility is a key step before the clinical application.With the rapid development of molecular biology,scientists have begun to evaluate biomaterial biocompatibility at molecular level and proposed the concept of molecular biocompatibility.Researchers'main tasks at present are to identify more molecular markers using molecular biology technology and to establish standards for evaluating molecular biocompatibility of biomaterial,which will provide the guidance for the design of better biomaterials.

β-catenin is an important signaling transduetion and adhesion molecules.Mutation of the betacatenin gene,CTNNB1,is a common case in pediatric tumors,which may induce development and metastasis.In hepatoblastoma,48%have CTNNB1 mutation.In Wilms tumor,mutation only occurs in cases with WT1 gene mutation.In neuroblastoma,mutation is also found.

Objective To evaluate the effects of Lactobacillus helveticus fermented milk on blood pressure and heart rate was evaluated in 8w old spontaneously hypertensive rats(SHR).Method Spontaneously hypertensive male rats were randomized into 5 groups(n=8) receiving fermented milk and its whey,water,skim milk and yogurt.Every sample was used to SHR on consecutive three days,during which they received increasing doses by ig.The systolic blood pressure and heart rate were measured by ZH-HX-Z tail cuff with a programmed electro-sphygmomanometer.Results At 1.5 ml dose of Lactobacillus helveticus TUST005 fermented milk and the 2 ml dose of Lactobacillus helveticus TUST005 fermented milk whey,we observed the marked and long-lasting hypertensive effect for 4 and 6 h,respectively.The maximum decrease in mean arterial blood pressure(20.5 mmHg) was achieved.Feeding 1 ml whey of Lactobacillus helveticus TUST005 fermented milk elicited significant decrease in heart rate(maximum of 50 bpm).Conclusion Significant reductions in mean systolic blood pressure,and heart rate were observed following intra-gastric administration of Lactobacillus helveticus TUST005 fermented milk.

Objective:To develop a succinct and effective social support questionnaire for Chinese Farmers.Methods:Based on the studies of Vender Poel Mart et al and combined with the interview data of 53 farmers,a pro-questionnaire was developed;An item analysis was conducted with a sample of 800 farmers of Zhejiang province;CFA was used to test another sample of 807 farmers from Zhejiang and other provinces.Reliability and validity were also tested.Results:Then,9-item questionnaire was formed;EFA indicated that farmers' social support consisted of four factors,namely:instrumental support,company support,emotional support and the utilization degree of social support,which explained 79.23% of total variance;CFA showed the 4-factor model was well fitted;The Cronbaeh's ? of the questionnaire was 0.72 and the split-half coefficient was 0.64;The correlations between 4 factors were 0.10-0.30,and all factor-total correlations were over 0.50.Conclusion:The structure,reliability and validity of Chinese Farmers' Social Support Questionnaire meets the need of psychometrics.

Objective: To explore the influence of social support on Chinese farmers’ career choice consideration. Methods: Based on depth interviews and the pre-test on 419 farmers, a questionnaire of self-efficacy, choice consideration and social support related to occupations representing Holland's six RIASEC career types was developed. With a formal sample of 628 farmers, and by the structural equation modeling, the hypothetic models were constructed and tested. Results: Across most of the career types, there were significant paths between positive support and self-efficacy, self-efficacy and choice consideration, negative support and choice consideration; the goodness of fit of the final models were perfect. Self-efficacy fully mediated the relationship between positive support and choice consideration. Conclusion: The influence of social support on farmers' career consideration is ambilateral. Positive support has fully positive effect on choice consideration via self-efficacy, whereas negative support has direct negative effect on it.