Objective To investigate the risk factors, pathogens spectrum and antimicrobial susceptibility of neonatal fungal septicemia. Methods Medical records of 23 neonates with fungal septicemia from May 2009 to August 2013 were analyzed retrospectively. Results A total of 36 strains of fungi including 20 strains of Candidaparapsilosis (55.6%) and 11 strains of Candidaalbicans (30.6%) were isolated from 23 patients. Fungal pathogens were susceptible to amphotericin and lfuorouracil, with susceptibility being 69.4%-77.8%. Prematurity, low birth weight, application of broad-spectrum antibiotics and invasive operation might be the risk factors of fungal septicemia. Fifteen cases (65.2%) had good outcomes (survival or partial restoration), while 8 cases (34.8%) had poor outcomes (withdrawing therapy or death). The duration of antifungal therapy in good prognosis group was longer than that in poor prognosis group (t=2.982, P<0.05). No significant difference in indicators of liver and kidney function was observed between before antifungal therapy and within 2 weeks after treatment. Meanwhile, no signiifcant difference of WBC was found between before antifungal therapy and within 2 weeks after treatment. The platelet counts were increased within one week after initial antifungal therapy (P<0.05). Conclusions Candida is the main pathogen of neonatal fungal septicemia and sensitive to amphotericin B. Long enough course of antifungal therapy is necessary to improve the cure rate.

Objective:To investigate the effects of epidermal growth factor (EGF)on cell cycle and cell cycle-related regulatory factors of human esophageal squamous cell carcinoma (ESCC) cell line Eca109.Methods: Serum starved Eca109 cells were treated with 20 ng/ml recombinant human EGF(rhEGF)for 24 h.The cell cycle phase distribution was detected by flow cytometry.The mRNA and protein expression levels of p21CIP1/WAF1(p21) and p27KIP1(p27) were detected by real-time quantitative reverse transcription polymerase chain reaction(qRT-PCR)and Western blot,respectively.Results: The proportions of G1 phase cells in EGF group and control group were ( 54.90 ±0.82 )% and ( 65.94 ±0.74 )%.The mRNA and protein expression levels of p 21 in EGF group was significantly higher ,and p27 was significantly lower than that in control group ( P<0.01 ) .Conclusion: EGF facilitates G1-S phase transition,and promotes the proliferation of Eca 109 cells,which may be associated with the up-regulation of p21 and down-regulation of p27.

Objective:To observe the influence of valsartan combined with Bailing capsules on urinary albumin excretion rate in early stage of type 2 diabetic nephropathy ( DN) , and explore its protection in early DN. Methods:Sixty patients with early DN were randomly divided into two groups. On the basis of diet control and blood glucose regulation, the control group (n=30) was given valsartan 160 mg, qd, while the prevention group (n=30) was treated by valsartan (160 mg·d-1) combined with Bailing capsules (2. 0g, po, tid), and the treatment course was 12 weeks. The urinary albumin excretion rate ( UAER) , mean arterial blood pressure ( MAP) , serum creat-inine ( Scr) and hemoglobin A1c ( HbA1c) were measured and compared before and after the treatment in the two groups. Results:UAER in the two groups was significantly reduced after the treatment compared with that before the treatment (P<0. 01), and that in the prevention group was obviously lower than that in the control group (P<0. 01). MAP in the two groups was significantly decreased after the treatment as well (P<0. 01), while there was no significant difference between the two groups. Scr and Hb Alc in the two groups showed no significant changes before and after the treatment (P>0. 05). Conclusion:Valsartan combined with Bailing capsules shows certain effects in the treatment of early stage of type 2 diabetic nephropathy by decreasing the urinary albumin excretion.

Objective To investigate the effect of cimetidine on the clonal expansion of TCR V? subfamily of T cells in cord blood after the stimulation by K562 cells in vitro.Methods Cimetidine(1?10-5 mol/L) or K562 cells(1?106/ml) or both of them were respectively cultured with mononuclear cells(MNC) isolated from normal human cord blood for 2 weeks.After the induction,specific cytotoxicity of the proliferated T cells were detected with K562 cells as the target cells.The selective usages and clonal expansion of TCR V? subfa-mily of T cells were analyzed by RT-PCR and genescan technique.Results After induction for 2 weeks,the 3 groups showed the increased cell proliferation,in which specific cytotoxicity of T cells induced by both cimetidine and K562 cells against K562 cells was enhanced significantly compared with the other 2 groups(P

New epidemic broke out in recent year which was suspected to be caused by variant Muscovy duck parvovirus (MDPV). For this reason, new MDPV detection methods are needed for the new virus strains. In this study, a pair of primers were designed according to the full-length genome of MDPV strain SAAS-SHNH, which were identified in 2012, and were used to amplify the vp3 gene of MDPV by polymerase chain reaction. After being sequenced, the vp3 gene was subcloned into the prokaryotic expression vector PET28a. The recombinant plasmid was transformed into E. coli BL21 and induced with IPTG. SDS-PAGE and Western blotting analysis showed the MDPV vp3 gene was successfully expressed. After being purified by Ni2+ affinity chromatography system, the recombinant protein was used as antigen to immunize rabbits to obtain antiserum. Western blotting analysis showed that the acquired antiserum could react specifically with VP3 protein of J3D6 strain and MDPV vaccine strain. The antiserum could also be used for detection of cultured MDPV from primary duck embryo fibroblasts by immune fluorescence assay (IFA). It could be concluded that the VP3 protein and its antibody prepared in the research could be used for detection of VP3 antiserum and antigen respectively.
Animals ; Blotting, Western ; DNA Primers ; Ducks ; virology ; Electrophoresis, Polyacrylamide Gel ; Immune Sera ; biosynthesis ; Parvovirus ; Polymerase Chain Reaction ; Rabbits ; Recombinant Proteins ; genetics ; Viral Proteins ; genetics

Objective To investigate the oropharyngeal microbial colonization in elderly patients.Methods Totally 618 elderly cases and 96 young and middle-aged cases were involved in this investigation.The colonization of bacteria and fungi on the oropharyngeal mucosa were obtained by throat swab cultures.Results There were 85.4％ of cases (82 cases) with Streptococcus viridans and Neisseria gonorrheae on the oropharynx mucosa in young and middle-aged group and the pattern of constitute was simple.3 to 5 bacterial species were isolated from the oropharyngeal mucosa in elderly group.There were only 25.7％ of cases (159 cases)with Streptococcus viridans and Neisseria gonorrheae on the oropharyngeal mucosa in elderly group.Biodiversity of the constitution pattern in the bacterial colonization was exhibited in the elderly.The colonization rate of Gramnegative bacilli was higher in elderly group than in young and middle-aged group [53.1％ (328/618)vs.6.3％ (6/96)].Staphylococcus aureus and Streptococcus pneumonia were the common Grampositive bacteria colonization in the elderly.The colonization rate of Candida fungus was 9.1 ％ (56/618) in the elderly.Conclusions The reduction of commensal bacteria,especially Streptococcus viridans may be the pathological basis of mode changes in bacteria colonization and opportunistic bacteria colonization on oropharyngeal mucosa in the elderly.The colonization rate of oropharyngeal Gram-negative bacili is obviously increased and Klebsiella Pneumoniae is the common bacteria on oropharyngeal mucosa in the elderly.Enterobacteriaceae,Pseudomonas aeruginosa and Acinetobacter baumannii are sensitive to common antibiotics.

OBJECTIVE: To provide reference for standardizing clinical pharmacist training.METHODS: According to actual situation in our hospital, a new clinical pharmacist training teaching method [lecture-based learning (LBL) -case-based learning (CBL) combination method] was created by integrating the training resources of clinical teaching and research department and extending teaching content. The comprehensive skills of trainees after training were compared between 2015 (traditional one-to-one teaching model) and 2016 (LBL-CBL combination method). RESULTS & CONCLUSIONS: In 2016, trainees are significantly improved in the ability to analyze (3. 8 score vs. 2. 8 score) and deal with clinical problems (2. 9 score vs. 2. 5 score) compared with those in 2015. LBL-CBL combination method can satisfy the demands of clinical pharmacists training in our hospital. Not only basic theory and clinical knowledge of trainees are improved, but also clinical thinking and comprehensive skill of trainees are strengthened by using LBL-CBL combination method. LBL-CBL combination method can be used in clinical pharmacists training and its usual tests, and contributes to the improvement of clinical pharmacist training teaching.

Objective To systematically review the effectiveness and safety of pantoprazole ( PAN ) vs. ranitidine (RAN) for patients with gastroesophageal reflux disease (GERD). Methods PubMed,Medline,EMbase,The Cochrane Library and three Chinese literature databases (CNKI,VIP and Wan fang) were retrieveed.Randomized controlled trials (RCTs) which compared the clinical outcomes of PAN group vs. RAN group for GERD were included. Two reviewers independently screened literatures in accordance with the inclusion and exclusion criteria, extracted the data and assessed the methodological quality of included studies.Then,meta-analysis was performed using RevMan 5.2 software. Results A total of 8 RCTs involving 1 590 patients were included.The results of meta-analysis showed that the PAN group was significantly superior to RAN group in terms of the healing rates and the relief rates of chief symptom for GERD of gradeⅠ-Ⅲ. While there was no significant difference in the incidence of adverse events between the two groups [GradeⅠ,RR=1.17,95%CI (0.80,1.70),P=0.43;GradeⅡorⅢ, RR=0.76,95%CI (0.43,1.36);P=0.36]. Conclusion Current evidence indicates that,pantoprazole is more effective than ranitidine for GERD of grade Ⅰ-Ⅲ,but both treatments are safe and well tolerated.

Radiotherapy is a treatment for cancer with undesired by-effects. In order to develop a new radiation protective agent that could reduce the by-effects, we tried to express and purify human cryptochrome 1 (hCRY1). The coding sequence of hCRY1 was inserted into prokaryotic expression plasmid pET28a(+), and this protein was purified from Escherichia coli BL21(DE3) after IPTG induction, ultrasonication, inclusion body dissolution, gradient dialysis, nickel column purification and ultrafiltration. The yield of hCRY1 in 1 L E. coli culture (LB medium) was about 10-15 mg. The radiation protective efficiency of hCRY1 was monitored by detecting X-ray-induced H2A.X foci in HaCaT cells. The results of immunofluorescence show that hCRY1 significantly reduces X-ray stimulated DNA damage response. The apoptosis of HaCaT cell was also detected, and the repression of H2A.X foci formation was not due to hCRY1's cytotoxity. All these data suggest a potential application of recombinant hCRY1 as a protective agent for radiotherapy.
Cryptochromes ; biosynthesis ; Escherichia coli ; Humans ; Plasmids ; Radiation-Protective Agents ; Recombinant Proteins ; biosynthesis

To establish an intelligent cervical vertebra maturity assessment system, and to evaluate the reliability and clinical value of the system. Sixty children aged were recruited in the study. Lateral cephalometric radiograph and cone beam CT (CBCT) were taken at the same period. Based on the CBCT data, the system automatically extracted the patient's facial area through Otsu's method, intercepted the sagittal plane by three-dimensional least squares method, captured the second to fourth cervical vertebrae by superpixel segmentation. And then selected points were marked automatically through morphological algorithm and manual method. Consistency test was performed on the two sets of data to compare the reliability of automated cervical morphology capture. According to the parameters of morphological identification, positioning and staging algorithms were designed to form the intelligent cervical vertebra maturity assessment system. The cervical vertebra maturity was also judged manually on the lateral cephalometric radiograph. The weighted Kappa test and the Gamma correlation coefficient were subsequently applied to evaluate the consistency and correlation. The results showed that the cervical vertebra features automatically captured based on CBCT data had a high accuracy on the overall morphological recognition. In the prediction of 8 inflection points out of 13 points, there was no significant difference between automatic and manual method on both X and Y axes (all >0.05). The assessment results of the cervical vertebra maturity of the intelligent system had strong consistency and correlation with the manual recognition results (weighted Kappa value=0.877, Gamma value=0.991, both <0.05). The intelligent cervical vertebrae maturity assessment system based on CBCT data established in this study presents reliable outcome and high degree of automation, indicating that the system may be used clinically.
Cephalometry ; Cervical Vertebrae/diagnostic imaging* ; Child ; Cone-Beam Computed Tomography ; Humans ; Radiography ; Reproducibility of Results