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Objective To investigate the diagnostic value of B7-H3 and carcinoembryonic antigen (CEA) on diagnosis of malignant pleural effusion (MPE).Methods We collected and analysed the expression of B7-H3 and CEA in 40 MPE cases and 22 cases of benign pleural effusion (BPE) using enzyme-linked immunosorbent assay (ELISA).Receiver operator characteristic curves (ROC) were drawn according to the expression of B7-H3 and CEA, calculated diagnosis sensitivity, specificity and the area under curve (AUC).Results The diagnosis sensitivity of B7-H3 was 62.5％, specificity 81.0％, with the AUC of 0.777;similarly, The diagnosis sensitivity of CEA was 72.5％, specificity 81.0％, with the AUC of 0.850.Higher AUC of 0.910 was gained in combination ROC, with sensitivity and specificity of 72.5％, 81.0％, respectively.Conclusion B7-H3 and CEA could be available diagnosing markers for MPE.Combined applications of B7-H3 and CEA have higher AUC.They may be widely applied in future clinical practice.
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Objective To evaluate he significance of the Neutrophil-Lymphocyte Ratio(NLR)and the red blood cell(erythrocyte)distribution width(RDW)in distinguishing between simple and complex febrile seizures and evaluate the diagnostic values of NLR and RDW in febrile seizures. Methods Totally,100 patients aged between 6 months and 5 years diagnosed with febrile seizure were admitted to the emergency department of the hospital.Complete blood count obtained from the peripheral blood samples collected from the patients at admis-sion were evaluated. Results The average values of NLR for simple and complex seizure groups were 2.16 ± 1.26 and 3.62 ± 1.51 respectively.The average values of RDW for simple and complex seizure groups were 15.04 ± 1.73 and 16.89 ± 1.44,respectively.Using receiver operating characteristic curve(ROC),the sensitivity and specificity were 65.5% and 66.2%,respectively,with the area under the curve[AUC]of 0.670 when the cut-off value was 2.52 for NLR,and they were 62.1% and 59.3%,respectively,with AUC of 0.619 when the cut-off value was 16.47 for RDW. Conclusion NLR and RDW may provide clinicians with an insight into differentiation between simple and complex febrile seizures,however,we need much better diagnostic value to classify the febrile seizures
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Intestinal flora can participate in and influence the physiological function and disease process of the organism as part of the host .The symbiotic relationship between intestinal flora and the host is the result of species′evolution over millions of years .Immunity system , which is complex and includes multiple influencing factors , is the necessary defense system that runs through human life .Among them, the intestinal flora plays an important role in maintaining the steady state of human immunity system .In this paper, the relationship between intestinal flora and immune system disease is briefly described , in order to deepen the understanding for medical workers and researchers , and provide references for the prevention , treatment and prognosis of the disease .
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Objective To understand tigecycline and commonly used anti-bacterial agents resistance in Gram-positive cocci and Acinetobacter baumannii .Methods 445 strains of Gram-positive cocci and 83 strains of Acinetobacter baumannii were collected . VITEK 2 Compact automated bacterial identification and susceptibility analysis system was employed to identify Gram-positive coc-ci and Acinetobacter baumannii and their bacterial sensitivities toward tigecycline and commonly used anti-bacterial agents were de-tected by broth microdilution method for antimicrobial susceptibility testing (MIC assay) and Kirby-Bauer disk diffusion susceptibil-ity test(K-B) ,respectively .Results 155(34 .8% ) strains of Staphylococcus aureus ,78(17 .5% ) Enterococcus feces ,56(12 .6% ) Staphylococcus haemolyticus ,45(10 .1% ) Staphylococcus epidermidis ,43(9 .7% ) Enterococcus faecalis ,18(4 .1% ) human Staphy-lococcus ,16(3 .6% ) Wolfowitz Staphylococcus ,8(1 .8% ) birds Enterococci and 26(5 .8% )other strains were found in 445 cases of Gram-positive cocci .The rate of penicillin-resistant Staphylococci was 92 .4% and the rates of Staphylococci′s resistance to eryth-romycin ,clindamycin ,oxacillin and ciprofloxacin were all over 50% .Enterococci ,which was sensitive to linezolid and tigecycline ,was resistant naturally to many drugs .The tigecycline sensitive rate ,intermediate rate and resistance rate acquired by MIC assay for multi-drug resistant and pan-resistant Acinetobacter baumannii were 57 .1% (47/83) ,42 .9% (36/83) and 0 .0% (0/83) ,respec-tively ,while those by K-B methods were 2 .4% (2/83) ,40 .5% (34/83) and 57 .1% (47/83) ,respectively .Conclusion Tigecycline showes good antibacterial activity toward Gram -positive cocci and Acinetobacter baumannii .
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The silver doped poly(L-aspartic acid) modified electrode was prepared by cyclic voltammetric method. The voltammetric behavior of dopamine and cyclic voltammetric method for the determination of dopamine were studied on the silver doped poly(L-aspartic acid) modified electrode. In pH 7.0 phosphate buffer solution, the peak potential was 0.191 V of Epa and 0.161 V of Epc(vs.Ag/AgCl) at the scan rate of 50 mV/s. The linear ranges for the determination of dopamine were 3.0×10-7-1.0×10-5 mol/L and 1.0×10-5-5.0×10-4 mol/L. The detection limit was 5.0×10-8 mol/L. The method was applied to the determination of dopamine in drug and urine with satisfactory results.