1.Distribution and drug resistance analysis of common pathogens in neurocranial surgical inpatients
International Journal of Laboratory Medicine 2017;38(5):657-659
Objective To understand the distribution and drug resistance dynamic status of common pathogens isolated from neurocranial surgical inpatients to provide a basis for clinically rational use of antimicrobial drugs .Methods A total of 413 strains of pathogenic bacteria isolated from neurocranial surgical inpatients from January 2013 to June 2016 were performed the identifica-tion and drug susceptibility test by using the Compact Vitek-2 automatic bacterial identificantion analyzer and the drug susceptibility test results were analyzed by using the WHONET5 .6 software .Results The commonest pathogenic bacteria were 90 strains of Pseudomonas aeruginosa ,69 strains of Klebsiella pneumonia ,52 strains of Escherichia coli ,50 strains of Acinetobacter baumannii and 37 strains of Staphylococcus Aureus .The common bacteria were resistant to many antibiotic drugs .The detection rate of me-thicillin-resistant Staphylococcus Aureus(MRSA) was 54 .1% ,no vancomycin-resistant Staphylococcus Aureus was found .Conclu-sion Clinicians should concern about the common pathogens and their drug resistance in their department ,rationally select antibac-terial drugs ,increase the curative effect and reduce the occurrence of bacterial drug resistance .
3.Clinical Comparison of Neuromuscular Pharmacodynamics of Different Dosage of Mivacurium Chloride in Infants during Sevoflurane Anesthesia
Jie HUANG ; Yu FANG ; Xinhua HENG
Journal of Kunming Medical University 2013;(8):59-62
Objective To investigate the neuromuscular blocking effects and clinical pharmacology of different dosage of mivacurium chloride in infants during sevoflurane anesthesia. Methods Forty ASA I infants undergoing sevoflurane general anesthesia were randomly assigned to tow groups according to the dose level of mivacurium: group1: 200 μg/kg ( n =20) and group2: 250 μg/kg ( n =20) . TOFs were determined synchronously. The onset time of mivacurium, recovery time of spontaneous breathing and cardiovascular reactions were measured. Results The onset time was significantly shortened in group 2 compared with group 1 (P<0.05) . There was no significant difference in the recovery time of spontaneous breathing between the two groups. 2 minutes after mivacurium was injected, DBP in group 2 decreased significantly compared with baseline and group 1. 3 minutes after mivacurium was injected,SBP in group 2 decreased significantly compared with baseline and group 1. Conclusion In infants undergoing sevoflurane general anesthesia, the onset time of mivacurium can be shortened when 250μg/kg was administered,but the depression of cardiovascular system may occurr simultaneously.
4.Clinical value of N-terminal B-type natriuretic peptide precursor on auricular thrombosis in patients of coronary heart disease combined with atrial fibrillation
Chinese Journal of Postgraduates of Medicine 2014;37(13):1-4
Objective To analyze the predictive value of N-terminal B-type natriuretic peptide precursor(NT-proBNP) on auricular thrombosis in patients of coronary heart disease (CHD) combined with atrial fibrillation (AF).Methods The clinical data of 124 patients of CHD combined with AF were analyzed retrospectively.All patients were divided into research group (60 cases,compliance with auricular thrombosis) and control group (64 cases,non-compliance with auricular thrombosis),according to the occurrence of auricular thrombosis.The values of NT-proBNP,fasting plasma glucose (FPG),postprandial plasma glucose(2 h PG),total cholesterol (TC),high density lipoprotein cholesterol (HDL-C),oxidized low density lipoprotein (ox-LDL),high sensitivity C reactive protein (hs-CRP) and left ventricular ejection fraction (LVEF),left ventricular end diastolic diameter (LVEDd) and left atrial diameter (LAD) were detected and compared between two groups.The relative factors to the occurrence of auricular thrombosis were confirmed by multivariate Logistic analysis.The best cutoff point of NT-proBNP was confirmed by the areas under the receiver operating characteristic curve (ROC).Results The values of NT-proBNP,ox-LDL,hs-CRP,LVEDd and LAD in research group were higher than those in control group [(4 312.6 ± 209.1) pmol/L vs.(3 421.6 ± 156.8) pmol/L,(4.0 ± 0.9) mmol/L vs.(3.4 ± 0.8) mmol/L,(7.4 ± 1.3)mg/L vs.(5.8 ± 1.0) mg/L,(74.3 ± 6.8) mm vs.(58.1 ± 5.5) mm,(39.6 ± 4.3) mm vs.(32.5 ± 3.8) mm],LVEF and HDL-C were lower than those in control group [(48.2 ± 3.1)% vs.(57.3 ± 3.8)%,(0.72 ± 0.16)mmol/L vs.(1.08 ±0.27) mmol/L],and there were significant differences (P <0.05).There were no significant differences in the values of FPG,2 h PG and TC between two groups (P > 0.05).Multivariate Logistic analysis showed that NT-proBNP and LAD were independent factors to the occurrence of auricular thrombosis (P =0.009,0.028).There was significant difference in the occurrence of auricular thrombosis between patients with NT-proBNP > 4 250 pmol/L and patients with NT-proBNP≤4 250 pmol/L (P =0.028).Conclusion NT-proBNP is an independent predictor for the occurrence of auricular thrombosis to patients of CHD combined with AF.
5.Alterations of von Willebrand factor and von Willebrand factor-cleaving protease activity in lung cancer patients and their clinical significance.
Wei HENG ; Zhaoyue WANG ; Fang LIU
Chinese Journal of Practical Internal Medicine 2001;0(03):-
Objective To measure von Willebrand factor(vWF)concentrations and von Willebrand factor-cleaving protease(vWF-cp)activity in plasma of lung cancer patients and to evaluate their clinical significance.Methods The vWF:antigen(vWF:Ag)and vWF-cp activity were measured by using ELISA and residual-collagen binding assay(R-CBA),respectively in 78 patients with lung cancer.The serum and pleural fluid(PLF)of carcino-embryonic antigen(CEA)were measured by radioimmunity assay in 23 patients.Results (1)The level of vWF:Ag in lung cancer patients(107.7?43.7)%was significantly higher than that in benign diseases(71.3?49.5)% and normal controls(82.4?41.3)%(P
6.Surgical treatment for pleomorphic pulmonary carcinoma: a single-center analysis of 60 patients
Chunyu JI ; Heng ZHAO ; Wentao FANG ; Wenhu CHEN
Chinese Journal of Thoracic and Cardiovascular Surgery 2012;(11):655-658
Objective To investigated the clinicopathological findings and prognosis of 60 patients with pleomorphic carcinoma.Methods 60 cases of pleomorphic pulmonary carcinoma were collected and studied clinicopathologically between 1999 and 2011.All patients underwent pulmonary resections.Results There was no in-hospital death.1 had haemothorax that required reoperation,1 patient had a late cicatricial bronchial stenosis after sleeve lobectomy of the upper right lobe,and treated successfully by the resection of the right two lobes.The 3,5-year survival rates of all patients were 47.2% and 25.6% respectively.For N0 and N1-N2 patients,3-,5-year survival rates were 57.3%,32.5 % and 25.4%,17.1%,respectively.Overall survivals were of significant difference between radical resection and uncomplete resection.Multivariate Cox regression analyses of overall survival of all 60 patients indicated that radical resection (P =0.041) and nodal status (P =0.029) were significant independent prognostic factors.Conclusion Pleomorphic carcinoma is a rare type of lung cancer.Pleomorphic carcinoma of the lung was often found as a large mass peripherally located and was associated with poor prognosis.Radical resection and nodal status were significant independent prognostic factors.
7.Patch tests and screening for new allergen in 215 cases with contact dermatitis
Hui YU ; Zhanying HOU ; Langfeng XU ; Heng CHEN ; Fang LIU
Chinese Journal of General Practitioners 2010;09(12):863-864
Patch tests were performed in 215 cases with contact dermatitis and 59 cases with noncontact dermatitis who visited the clinic of Xili Hospital, Shenzhen.Results showed that top four allergen for them were 0.1% Merthiolate, 5% nickel sulfate, 7% aromatic compounds and 1% formaldehyde in sequence.There was significant difference in occurrence of dermatitis at the hands, trunk, extremities,face, and periumbilicus caused by these four kinds of allergen (P <0.01 ), with 0.1% Merthiolate mainly causing dermatitis at the face, hands, trunk and extremities, 5% nickel sulfate causing dermatitis at the periumbilicus, trunk and extremities, 7% aromatic compounds causing dermatitis at the hands, trunk,extremities and face, whereas 1% formaldehyde mainly causing facial dermatitis.Concentration of pentyl acetate and rosin spirit used for patch tests should be 20 % and 25 %, respectively.
8.Therapeutic antibody: new opportunity for immunity and inflammatory diseases.
Wei SUN ; Heng LIN ; Fang HUA ; Zhuowei HU
Acta Pharmaceutica Sinica 2012;47(10):1306-16
With the development of therapeutic antibodies over the past decade, they have become the treatment options for immunity and inflammation diseases. Major limitations of mouse antibodies as therapeutic agents - immunogenicity, lack of effectors' functions and short serum half-life -- were subsequently identified and largely overcome by the advent of humanized and fully human antibody technologies. The therapeutic antibodies for immunity and inflammatory diseases are primarily utilized in the treatment of allograft rejection, autoimmune disease, autoinflammatory syndromes, allergies and other chronic inflammation. The action mechanisms of therapeutic antibody include blocking ligands or receptors, regulating receptor activity, clearing the target cells or activating receptor. Strategies for generating the antibody drugs with high efficacy and low side effects can be realized by modulation of Fc-mediated activities and optimization of antigen-binding domains.
9.Nosocomial Infection in Twenty-four Hospitals in Anhui Province:Survey and Analysis of Current Administrative Situation
Hongqiu MA ; Pengfei DU ; Tong FANG ; Heng WANG
Chinese Journal of Nosocomiology 2005;0(11):-
OBJECTIVE To investigate the status of the management of nosocomial infection in Anhui Province so as to help to improve it.METHODS Twenty-four hospitals were on-the-spot investigated in a way of questioning and sampling using uniform questionnaire by trained investigators.RESULTS 95.83% Of all involved hospitals have built independent department of nosocomial infection management.These departments from 70.83% hospitals play an important role in infection management and 45.83% of them have suitable structure of staff.There are some problems in the key regions of nosocomial infection control such as operating room,blood dialyzing center and sterilization supply department: small work area,old equipment,irrational arrangement,sterilizing inadequately and so on.CONCLUSIONS The work of administration of nosocomial infections needs to be strengthened.
10.Optimizing the host bacteria to make a large naive phage antibody library in the recombination system.
Wei SUN ; Heng LIN ; Fang HUA ; Zhuowei HU
Acta Pharmaceutica Sinica 2013;48(1):66-70
To prepare large naive phage antibody library, the host bacteria with high transformation efficiency is used in the Cre-LoxP recombination system. The variable regions of immunoglobulin light and heavy genes were amplified from lymphocytes collected from adult peripheral blood and newborn cord blood. The genes were spliced to form the single-chain variable fragments (scFv) by overlap PCR, cloned into pDAN5a vector and then transformed into XL2-blue MRF' with the Hte gene. Compared with XL1-blue strain, the size of the primary library was increased by 3.9 times. The primary library infected Cre recombinase-expressing bacteria, and the genes between phagemids created many new VH/VL combinations. The library was calculated to have a diversity of 1.7 x 10(11) and validated by the selection of antibodies against six different protein antigens. This library provides the basis for further selection of antibody-based drugs. It is the first time to report that XL2-blue MRF' can be used to improve the diversity of the library in the recombination system.