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1.
Article in Chinese | WPRIM | ID: wpr-318024

ABSTRACT

<p><b>OBJECTIVE</b>To study the genotype distribution of extended-spectrum beta-lactamases (ESBLs) in ESBLs-producing Escherichia coli (E. coli) isolates from posthepatitic cirrhosis' patients with bloodstream infection.</p><p><b>METHODS</b>E. coli were isolated in bloodstream from patients with posthepatitic cirrhosis between January and December in 2011. The strains were identified by VITEK-II. The antibiol susceptibility tests were performed with K-B method. beta-lactamases genes were detected multi-PCR, PCR, sequence and blast.</p><p><b>RESULTS</b>A total of 79 non-duplicate clinical isolates of E coli were consecutively collected from liver cirrhosis' patients with bloodstream infection. There were 20 isolates produced TEM-1 type beta-lactamases and 1 isolate produced SHV-1 typebeta-lactamases. 40 clinical isolates were detected to produce CTX-M type ESBLs, there were 20 CTX-M-1 group and 26 CTX-M-9 group, including 6 stains habouring both CTX-M-1 and CTX-M-9 group. Eight CTX-M genotypes were confirmed by sequencing of the PCR products, including CTX-M-3, CTX-M-14, CTX-M-15, CTX-M-24, CTX-M-28, CTX-M-31, CTX-M-65 and CTX-M-79.</p><p><b>CONCLUSION</b>CTX-M genotype ESBLs was the most popular extended-spectrum beta-lactamases in E. coli isolated from liver cirrhosis' patients with bloodstream infection. The CTX-M-14 is the dominant epidemic type.</p>


Subject(s)
Humans , Bacteremia , Microbiology , Cross Infection , Microbiology , Drug Resistance, Bacterial , Escherichia coli , Genetics , Escherichia coli Infections , Microbiology , Escherichia coli Proteins , Genetics , Genotype , Hospitalization , Liver Cirrhosis , Therapeutics , Microbial Sensitivity Tests , beta-Lactamases , Genetics , Metabolism
2.
Article in Chinese | WPRIM | ID: wpr-318035

ABSTRACT

<p><b>OBJECTIVE</b>To clone and express human Golgi glycoprotein73 protein, and prepare the monoclonal antibody (mAb) against the protein.</p><p><b>METHODS</b>GP73 gene was amplified from HepG2 cells by RT-PCR, then ligated with pQE31 to form recombinant plasmid pQE-GP73 and transformed into E. coli BL21. The protein induced by IPTG was purified by 6 x His-tag and used to immunize the BALB/c mice. The specific monoclonal antibodies (mAbs) were prepared by the cell fusion technique. Western Blot was used to detect specificity of mAbs.</p><p><b>RESULTS</b>The prokaryotic plasmid expressing the recombinant protein was constructed, and the GP73 recombinant protein was expressed and purified. Five hybridoma cell lines that secreted anti-GP73 mAbs were obtained. 2 of 5 mAbs were the IgG1 subtype. Western Blot indicated the mAbs showed specific combination with GP73 protein.</p><p><b>CONCLUSION</b>The GP73 recombinant protein is highly purified and has strong antigenicity. The anti-GP73 mAbs were prepared successfully.</p>


Subject(s)
Animals , Humans , Mice , Antibodies, Monoclonal , Cloning, Molecular , Gene Expression , Hep G2 Cells , Hybridomas , Metabolism , Liver Neoplasms , Genetics , Metabolism , Membrane Proteins , Genetics , Allergy and Immunology , Mice, Inbred BALB C , Recombinant Proteins , Genetics , Allergy and Immunology
3.
Article in Chinese | WPRIM | ID: wpr-318055

ABSTRACT

<p><b>OBJECTIVE</b>To prepare the monoclonal antibody (mAb) against tissue inhibitor of metalloproteinases I (TIMP-I) fusion protein.</p><p><b>METHODS</b>TIMP-I gene was amplified from fibrotic human liver tissue by RT-PCR, then ligated with pQE31 to form recombinant plasmid pQE-TIMP-I and transformed into E. coli BL21. The protein induced by IPTG was purified by 6 x His-tag and used to immunize the BALB/c mice. The specific monoclonal antibodies (mAbs) were prepared by the cell fusion technique. Western Blot were used to detect specificity of mAbs.</p><p><b>RESULTS</b>The prokaryotic plasmid expressing the recombinant protein was constructed, and the TIMP-I recombinant protein was expressed and purified. Four hybridoma cell lines that secreted anti-TIMP-I mAbs were obtained. 3 of 4 mAbs were the IgG1 subtype. Western Blot indicated the mAbs showed specific combination with TIMP-I protein.</p><p><b>CONCLUSION</b>The TIMP-I recombinant protein is highly purified and has strong antigenicity. The anti- TIMP-I mAbs were prepared successfully.</p>


Subject(s)
Animals , Humans , Mice , Antibodies, Monoclonal , Allergy and Immunology , Cloning, Molecular , Mice, Inbred BALB C , Recombinant Proteins , Allergy and Immunology , Tissue Inhibitor of Metalloproteinase-1 , Genetics , Allergy and Immunology
4.
Article in Chinese | WPRIM | ID: wpr-318064

ABSTRACT

<p><b>OBJECTIVE</b>To discuss the changes of lymphocyte subsets in HCV children with different genotypes during treatment with pegylated interferon alfa-2b and ribavirin.</p><p><b>METHODS</b>The genotype of 45 HCV infected children were identified by real time PCR. The lymphocyte subsets were dynamically detected by BD FACSCalibur flow cytometer with four color MultiTEST IMK Kit during the treatment.</p><p><b>RESULTS</b>For the children with 1b genotype, after 24 weeks, the CD4+ T cells were higher than pre-treatment (P < 0.05). For the children with 2a genotype, after 12 weeks and after 24 weeks, the CD3+ T cells and CD4+ T cells significantly increased while the NK cells decreased than pre-treatment (P < 0.05).</p><p><b>CONCLUSIONS</b>The lymphocyte subsets of HCV children with 2a genotype were different from 1b genotype during trentment with pegylated interferon alfa-2b and ribavirin.</p>


Subject(s)
Child , Child, Preschool , Female , Humans , Male , Genotype , Hepacivirus , Classification , Genetics , Hepatitis C, Chronic , Drug Therapy , Allergy and Immunology , Virology , Lymphocyte Subsets , Allergy and Immunology , RNA, Viral , Retrospective Studies
5.
Article in Chinese | WPRIM | ID: wpr-318084

ABSTRACT

<p><b>OBJECTIVE</b>To establish a purificatory method of alpha-fetoprotein variant (AFP-L3) based on microspincolumn with lens culinaris agglutinin (LCA).</p><p><b>METHODS</b>LCA was isolated by ammonium sulfate precipitation method from lens culinaris. AFP-L3 affinity adsorption microspincolumns which were made from LCA coupled with activated Sepharose 4B were prepared. By adding into the centrifuge column, serum was absorbed and eluted to purify AFP-L3. The results of purified AFP-L3 detection of 10 cases AFP positive sera by electro-chemiluminescence immunoassay were compared with traditional crossed affinity immunoelectrophoresis.</p><p><b>RESULTS</b>8 of 10 cases AFP-L3 concentration were greater than 5 ng/ml in purified sera. Six cases show positive reaction in affinity immune cross electrophoresis experiment.</p><p><b>CONCLUSION</b>Successfully established purification method of AFP-L3 by affinity absorption based on microspincolumn. The method was more conducive to clinical laboratory applications due to its high sensitive and easy operation.</p>


Subject(s)
Adsorption , Chromatography, Affinity , Methods , Immunoelectrophoresis , Lens Plant , Plant Lectins , Chemistry , Reproducibility of Results , alpha-Fetoproteins , Chemistry
6.
Article in Chinese | WPRIM | ID: wpr-318102

ABSTRACT

<p><b>OBJECTIVE</b>To estimate the consistency of two VITROS 3600 chemiluminescent analyzers according to the requirement of ISO15189.</p><p><b>METHODS</b>Verification tests were made for precision and accuracy of anti-HCV in two instruments. While 40 serum samples including Anti-HCV negative (10 cases) , positive (10 cases) , and weakly positive (20 cases). and the test results were statistical analised.</p><p><b>RESULTS</b>Two instruments negative and positive control samples intra-batch precision and coefficients of variation were 5% , 4% and 7. 14% , 7. 23% , inter-batch precision and coefficients of variation were 9. 47% , 7. 7% and 8.04%, 7. 6%, are less than requirement CV (15%) by ISO15189. The accuracy of two instrument were 100% , The test results of the control samples showed no significant difference (P < 0. 05). The correlation analysis of the test results of clinical samples R2 =0. 9984, with good consistency.</p><p><b>CONCLUSION</b>Test results of two Vitros 3600 has good consistency and comparability.</p>


Subject(s)
Humans , Clinical Laboratory Techniques , Reference Standards , Hepacivirus , Chemistry , Hepatitis C , Blood , Diagnosis , Hepatitis C Antibodies , Blood , Luminescent Measurements , Reference Standards , Reproducibility of Results , Statistics as Topic
7.
Article in Chinese | WPRIM | ID: wpr-304999

ABSTRACT

<p><b>OBJECTIVE</b>Evaluated the chemiluminescence and enzyme-linked immunosorbent assay (ELISA) to detect HIV antibodies, and compared the results, to provide a reference for the selection and clinical application of HIV screening.</p><p><b>METHODS</b>3000 cases of our hospital patients were measured by enzyme-linked immunosorbent assay and chemiluminescence immunoassay, using comfirmming experimental results as gold standards. Comparing sensitivity, specificity and other Indicators.</p><p><b>RESULTS</b>In the diagnosis of HIV infection, enzyme-linked immunosorbent assay and chemiluminescence immunoassay had no significant difference. The positive rate of enzyme-linked immunosorbent assay was 0.93%, while the sensitivity and specificity were 89.66%, 99.93%, the positive rate of chemiluminescence immunoassay was 1.03%, while the sensitivity and specificity were 100%, 99.93%, respectively.</p><p><b>CONCLUSION</b>Both methods are suitable for screening of HIV, having high specificity, and chemiluminescence has greater sensitivity than ELISA.</p>


Subject(s)
Adolescent , Adult , Aged , Female , Humans , Male , Middle Aged , Young Adult , Enzyme-Linked Immunosorbent Assay , Methods , HIV Antibodies , Blood , HIV Infections , Diagnosis , Allergy and Immunology , Luminescent Measurements , Methods , Sensitivity and Specificity
8.
Article in Chinese | WPRIM | ID: wpr-305049

ABSTRACT

<p><b>OBJECTIVE</b>Establish a confirmatory test based on ELISA, and use to verify the authenticity of HBsAg weak positive samples, pick and get rid of the false result, and avoid the mistake diagnosis.</p><p><b>METHOD</b>The particles (reagent A) coated by streptavidin and biotinylated HBsAb (reagent B) were mixed in different proportions, then neutralized with serum whose the COI of HBsAg > 20 by ELISA in order to identify the activity of HBsAb in confirmatory reagent. 30 pieces of HBsAg weak positive serum neutralized with the confirmatory reagent, the serum were considered to be positive if rate of decline of HBsAg COI > 50%. The results were compared to Roche confirmatory Kit.</p><p><b>RESULT</b>Confirmatory reagent was able to neutralized with HBsAg. 24 of 30 pieces of HBsAg weak positive samples were judged to be positive, while 6 poeces were negative. The ELISA comfirm method is fully consistent with Roche confirmatory Kit.</p><p><b>CONCLUSION</b>The ELISA confirmatory test for suspicious HBsAg positive samples is a simple, accurate and low cost initial validation method, After further clinical trials, should be widely applied.</p>


Subject(s)
Humans , Enzyme-Linked Immunosorbent Assay , Methods , Hepatitis B , Blood , Diagnosis , Hepatitis B Antibodies , Blood , Hepatitis B Surface Antigens , Blood
9.
Article in Chinese | WPRIM | ID: wpr-305062

ABSTRACT

<p><b>OBJECTIVE</b>To understand the hemagglutination inhibition antibody level in patients with influenza A H1N1.</p><p><b>METHODS</b>Sera from 28 patients with influenza A H1N1 at different time points after illness onset were collected and measured by hemagglutination inhibition assay.</p><p><b>RESULTS</b>The serum hemagglutination inhibition antibody titers at 1, 5, 15, 22, 37, 49 and 58 days after illness onset were 5.36, 9.39, 39.02, 57.99, 137.92, 55.19 and 57.99 respectively. The top geometric mean titer of hemagglutination inhibition antibody was 148.55. The antibody seroconversion rate and seroprotection rate were occurred in 96.4% (27/28) of patients.</p><p><b>CONCLUSION</b>The patients with influenza A H1N1 have effective immune response.</p>


Subject(s)
Adolescent , Adult , Female , Humans , Male , Young Adult , Antibodies, Viral , Blood , Allergy and Immunology , China , Hemagglutination Inhibition Tests , Hemagglutinin Glycoproteins, Influenza Virus , Allergy and Immunology , Influenza A Virus, H1N1 Subtype , Allergy and Immunology , Influenza Vaccines , Allergy and Immunology , Influenza, Human , Blood , Allergy and Immunology , Virology
10.
Article in Chinese | WPRIM | ID: wpr-246201

ABSTRACT

<p><b>OBJECTIVE</b>To evaluate the clinical value of an enzyme-linked immunosorbent assay by the Helicobacter pylori stool antigen (HpSA) test for the detection of H. pylori infection.</p><p><b>METHODS</b>328 patients were measured upper gastrointestinal endoscopic examination which as gold standards and HpSA test in the meantime, comparing accuracy, sensitivity, specificity and other Indicators.</p><p><b>RESULTS</b>In the diagnosis of Hp infection, HpSA test had no significant difference comparing with gold standards and had a P value of over 0.5. The sensitivity of HpSA test was 94.6%, while the specificity, veracity, expected positive value, and expected negative value were 96.9%, 96.3%, 89.7% and 98.4%, respectively.</p><p><b>CONCLUSION</b>The H. pylori stool antigen test is a simple, non-invasive method for accurate diagnosis of H. pylori infection.</p>


Subject(s)
Adolescent , Adult , Aged , Child , Female , Humans , Male , Middle Aged , Antigens, Bacterial , Enzyme-Linked Immunosorbent Assay , Methods , Feces , Microbiology , Helicobacter Infections , Diagnosis , Helicobacter pylori , Allergy and Immunology , Sensitivity and Specificity
11.
Article in Chinese | WPRIM | ID: wpr-246202

ABSTRACT

<p><b>OBJECTIVE</b>Establish a kind of confirmation method based on ELISA, and use to verify authenticity of HBsAb + in HBsAg + HBsAb + serum, pick and get rid of the false masculine gender the result, and avoid the mistake diagnosis.</p><p><b>METHOD</b>Collect 60 pieces of serum whose thick degree of HBsAg at 1000 COI above tested by ECLIA as confirm serum, mixed the confirm serum of different dilution with HBsAb positive serum to screen and verify best thick degree of HBsAg. Collected 40 pieces of HBsAg + HBsAb + serum, ELISA tested the descend rate of HBsAb COI after neutralized with confirm serum in order to confirm authenticity of HBsAb + in pieces of HBsAg + HBsAb + serum.</p><p><b>RESULT</b>When thick degree of HBsAg is 2000 COI, the performance of neutralization to HBsAb is best. The ELISA confirmatory test is fully consistent with the ECLIA method with true positive of 37 pieces of HBsAg + HBsAb + serum while false-positive of 3 pieces of serum.</p><p><b>CONCLUSION</b>The ELISA confirm method is a simple, accurate and low cost initial validation method.</p>


Subject(s)
Humans , Enzyme-Linked Immunosorbent Assay , Methods , Hepatitis B Antibodies , Blood , Hepatitis B Surface Antigens , Blood , Allergy and Immunology
12.
Zhonghua ganzangbing zazhi ; Zhonghua ganzangbing zazhi;(12): 815-817, 2011.
Article in Chinese | WPRIM | ID: wpr-239319

ABSTRACT

<p><b>OBJECTIVE</b>To quantitatively detect intrahepatic HBV covalently closed circular DNA (cccDNA) and serum HBsAg; and to analyze the relationship between the two parameters and with serum HBV DNA level.</p><p><b>METHODS</b>Intrahepatic cccDNA (copies/cell) was quantitated by plasmid-safe ATP-dependent Danes (PSAD) digestion in combination with rolling circle amplification and gap-spanning selective real-time PCR assay using formalin fixed paraffin-embedded liver biopsy samples. HBsAg was measured by chemiluminescence's reagent manufactured by Abbott Company using sera sampled at time-point of liver biopsy.</p><p><b>RESULTS</b>Intrahepatic cccDNA level was positively correlated with serum HBsAg level (r = 0.459, P < 0.001), but not correlated with serum HBV DNA level. Serum HBsAg level was positively correlated with serum HBV DNA level (r = 0.328, P = 0.015), and reversely correlated with HBV replicative efficiency defined as the ratio of serum HBV DNA to cccDNA (r = -0.373, P = 0.005).</p><p><b>CONCLUSION</b>In patients with chronic hepatitis B, intrahepatic cccDNA level is correlated with serum HBsAg level. The two parameters combined with serum HBV DNA may comprehensively reflect HBV replication activity and help evaluation of antiviral therapeutic efficacy.</p>


Subject(s)
Female , Humans , Male , DNA, Circular , DNA, Viral , Hepatitis B Surface Antigens , Blood , Hepatitis B virus , Genetics , Hepatitis B, Chronic , Blood , Virology , Liver , Virology , Viral Load
13.
Article in Chinese | WPRIM | ID: wpr-231168

ABSTRACT

<p><b>OBJECTIVE</b>Assessment of detection of IgM antibodies for human enterovirus 71 (EV 71) in early diagnosis for the hand, foot and mouth disease (HFMD).</p><p><b>METHOD</b>The sera and throat swabs from 38 patients which were clinical diagnosis as HFMD, were continuous daily collected in our hospital in 2010. These specimens were detected by EV 71 IgM antibodies assay, real time RT-PCR methods for EV 71 and Enterovirus.</p><p><b>RESULTS</b>Among 38 HFMD patients, the cumulative positive rates of EV 71 IgM antibodies were: 60.5% on day 1, 71.1% on day 2, 81.5% in the first 3-4 days, 92.1% on day 5, 92.1% on day 6, and the positive rate of nucleic acid detected by the real time RT-PCR for EV 71 and Enterovirus were 60.5%, 73.6%.</p><p><b>CONCLUSION</b>The positive rate of EV 71 IgM antibodies in the hand, foot and mouth disease just can occur on day 1, and reach to peak on day 5, which can be used as one of indicators of early diagnosis of hand, foot and mouth disease.</p>


Subject(s)
Adolescent , Child , Child, Preschool , Female , Humans , Infant , Male , Antibodies, Viral , Blood , Allergy and Immunology , Early Diagnosis , Enterovirus A, Human , Allergy and Immunology , Hand, Foot and Mouth Disease , Diagnosis , Allergy and Immunology , Virology , Immunoglobulin M , Blood , Allergy and Immunology
14.
Article in Chinese | WPRIM | ID: wpr-231206

ABSTRACT

<p><b>OBJECTIVE</b>To verify a new kit of "universal and novel influenza A (H1N1) virus nucleic acid double-detection methods (PCR-fluorescence probe)".</p><p><b>METHODS</b>150 cases of throat swab specimens were collected consecutively. After RNA was extracted, the specimens were detected by the verified kit. At the same time, the same specimens were detected by Real-time PCR diagnostic kit from Beijing CDC as the control. The data were analysed by the Kappa in agreement and by McNemar chi2 in difference test.</p><p><b>RESULTS</b>The consistency rate of the verified kit and the Beijing CDC kit was universal primer M 97.33%, H1N1 98.67% respectively. The Kappa test and McNemar chi2 test showed that two methods had a higher consistency. Compared to the CDC kit, the "false negative rate" and "false-positive rate"of double-check kit were lower.</p><p><b>CONCLUSION</b>The kit of "universal and novel influenza A (H1N1) virus nucleic acid double-detection methods (PCR-fluorescence probe)" from Shanghai Kehua Bio-Engineering Co., Ltd can be used to detect influenza A and novel influenza A (H1N1).</p>


Subject(s)
Adolescent , Adult , Child , Female , Humans , Male , DNA, Viral , Influenza A Virus, H1N1 Subtype , Genetics , Polymerase Chain Reaction , Methods , Reagent Kits, Diagnostic
15.
Article in Chinese | WPRIM | ID: wpr-316907

ABSTRACT

<p><b>OBJECTIVE</b>To determine the association between elevated levels of serum cancer antigen (CA) 125 and hepatitis cirrhosis in different stage, and also to explore the clinical application value of serum CA-125.</p><p><b>METHODS</b>During June to December in 2008, 200 cases with hepatitis cirrhosis were random selected in our hospital. CA-125 levels were measured by electrochemiluminescence immunization assay in sera collected from these cases which were termed with Child-Paugh classification and analyzed by SAS.</p><p><b>RESULTS</b>Serum CA-125 levels were correlated closely with ascites, primary peritonitis and liver function Child-Paugh classification, but no associated with primary carcinoma of liver and other liver function index,such as ALT, AST, ALB, TBIL and PT.</p><p><b>CONCLUSION</b>The levels of serum CA-125 in hepatitis cirrhosis patients were osculating correlating with lesion of liver and ascite degree, could serve as a sensitive and conventional laboratory index for liver lesion degree and monitoring ascite generation. It was necessary to further study on the association with serum CA-125 level with primary hepatic carcinoma.</p>


Subject(s)
Adult , Aged , Aged, 80 and over , Female , Humans , Male , Middle Aged , Young Adult , Ascites , Pathology , CA-125 Antigen , Blood , Liver , Pathology , Liver Cirrhosis , Blood , Pathology
16.
Article in Chinese | WPRIM | ID: wpr-316908

ABSTRACT

<p><b>OBJECTIVE</b>To investigate the characters and changes of peripheral white blood cells and lymphocyte subsets of patients with pandemic influenza A virus (H1N1) infection and to provide evidences for diagnosis, treatment and prognosis of influenza A (H1N1) infection.</p><p><b>METHODS</b>Peripheral white blood cell parameters and the percentages of lymphocyte subsets in acute and recovery phases of 59 cases of influenza A virus (H1N1) infectious patients (42 mild cases and 17 severe cases) were investigated and analyzed, and compared respectively with those of 43 cases of healthy adults as control (HC) and 24 cases of general influenza A virus (no-H1N1) infectious using whole blood cell analysis and flow cytometry.</p><p><b>RESULTS</b>Peripheral white blood cell counts of mild cases decreased greatly but those of severe cases did not decrease significantly; the neutrophils of severe cases increased significantly in acute phase; similar to general influenza A virus (no-H1N1) infectious, the peripheral lymphocytes, CD3, CD4, CD8 and B cells of all patients with influenza A virus (H1N1) infection decreased greatly in acute phase and quickly recovered in recovery phase; NK and NKT cells absolute counts of severe cases decreased significantly in acute phase, and the decreasing extent of which were more than 20%.</p><p><b>CONCLUSION</b>There were similar characteristics of change in peripheral white blood cells and lymphocyte subsets between patients with pandemic influenza A virus (H1N1) infection and general pandemic A virus (No-H1N1); the great decrease of NK and NKT cells absolute counts may suggest the severe tendency of diseases.</p>


Subject(s)
Adolescent , Adult , Female , Humans , Male , Middle Aged , Young Adult , Case-Control Studies , China , Epidemiology , Flow Cytometry , Influenza A Virus, H1N1 Subtype , Allergy and Immunology , Influenza, Human , Blood , Epidemiology , Allergy and Immunology , Virology , Leukocyte Count , Lymphocyte Count , Lymphocyte Subsets , Allergy and Immunology , Pandemics
17.
Article in Chinese | WPRIM | ID: wpr-316942

ABSTRACT

<p><b>OBJECTIVE</b>To analysis the clinical and laboratory characteristics of Patients infected with new influenza A (HIN1) virus.</p><p><b>METHODS</b>All cases with new influenza A (H1N1) confirmed on polymerase chain reaction assay on throat swabs. There were included in a prospective evaluation of clinical characteristics, laboratory results, treatment and overcome of new influenza A (H1N1).</p><p><b>RESULTS</b>There were 35 patients in the epidemic. Clinical illness developed within a mean of 1.7 days. Fever occurred in 97.1%, sore throat 65.7% cough 51.4%, headache 28.6%, and myalgia 31.4%. All patients were treated with oseltamivir lasted 5 days. The mean duration of viral shedding was 4.5 days. All were cured and left hospital after day 7.</p><p><b>CONCLUSION</b>It was infected by new influenza A (H1N1) typically in this epidemic.</p>


Subject(s)
Adolescent , Adult , Female , Humans , Male , Young Adult , Disease Outbreaks , Influenza A Virus, H1N1 Subtype , Virulence , Influenza, Human , Diagnosis , Drug Therapy , Virology , Oseltamivir , Therapeutic Uses
18.
Article in Chinese | WPRIM | ID: wpr-332425

ABSTRACT

<p><b>OBJECTIVE</b>To evaluate the detection method of ELISA and Enhanced Chemiluminescence Immunoassay (ECLIA) in use to determine serum hyaluronate acid (HA), laminin (LN), type IV collagen (IV-C) and type III procollagen (PC III).</p><p><b>METHODS</b>253 patients with chronic hepatitis B were determined the four liver fibrosis serum markers with both the ECLIA and ELISA, and then compared with pathology results separately.</p><p><b>RESULTS</b>Both the detection results of ELISA and ECLIA can reflect that the patient's liver fibrosis from hepatitis to liver cirrhosis aggravated gradually. Compared with ELISA, the results of ECLIA and pathology have a better correlation.</p><p><b>CONCLUSIONS</b>The detection of four liver fibrosis serum markers by ECLIA could indicate the better the response of the state of live fibrosis.</p>


Subject(s)
Humans , Biomarkers , Blood , Collagen Type III , Blood , Collagen Type IV , Blood , Enzyme-Linked Immunosorbent Assay , Methods , Laminin , Blood , Liver Cirrhosis , Blood , Diagnosis , Pathology , Luminescent Measurements , Methods
19.
Article in Chinese | WPRIM | ID: wpr-254065

ABSTRACT

<p><b>OBJECTIVE</b>To explore the significance of Lens culinaris-reactive alpha-Fetoprotein (AFP-L3) detection in primary hepatocellular carcinoma.</p><p><b>METHODS</b>AFP-L3 was isolated by using microspin column coupled with lens culinaris agglutinin (LCA), AFP and AFP-L3 were detected with chemiluminescent immunoassay, the proportion of AFP L3 levels were calculated, and the relationship between the elevated AFP-L3 (%) levels and benign and malignant liver disease was analyzed.</p><p><b>RESULTS</b>There were significant differences in positive rate between the patients of HCC, suspected HCC and other liver disease (81.80%, 73.68%, 11.80%, respectively, P < 0.05). Among the undetermined HCC (suspected HCC, liver disease) patients, 12 out of 21 cases of AFP-13 positive were diagnosed to be HCC within 6 months, and 6 of them were diagnosed to be the single small HCC at the early stage through B-Ultrasonic Diagnosis or CT. Among 62 cases of AFP-L3 negative, 3 cases were diagnosed to be HCC within 6 months and the risk of occurrence of HCC for AFP-L3 positive increased 11.9 times.</p><p><b>CONCLUSION</b>AFP-L3 has no correlation with AFP value, and it can be used as an independent HCC diagnosis factor. The detection of AFP-L3 has a significant implication for the identification of benign or malignant liver disease and the early stage predictive diagnosis of HCC while AFP increases.</p>


Subject(s)
Adult , Aged , Female , Humans , Male , Middle Aged , Young Adult , Biomarkers, Tumor , Metabolism , Carcinoma, Hepatocellular , Diagnosis , Pathology , Lens Plant , Chemistry , Metabolism , Neoplasm Invasiveness , Plant Lectins , alpha-Fetoproteins
20.
Article in Chinese | WPRIM | ID: wpr-248779

ABSTRACT

<p><b>OBJECTIVE</b>To improve the diagnostic ability of routine laboratory items in liver diseases associated with viral hepatitis through constructing assessment models consisting of these items.</p><p><b>METHODS</b>(1) Assessment of routine items and formulation of models. Data of 447 patients seen between May 1997 and August 2003 were collected as the training set and serum specimens of 213 patients taken between June 2004 and March 2005 were examined and used as the validation set. Eleven items (TP, ALB, TBIL, DBIL, ALT, AST, ALP, GGT, TBA, LDH, CHE) were examined with an automated biochemical analyzer. Logistic regression was applied to construct the model for discriminating between chronic hepatitis and liver cirrhosis. The diagnostic value of items and models was assessed by the area under the receiver-operating characteristic (ROC) curve.</p><p><b>RESULTS</b>The model to discrimination between chronic hepatitis and liver cirrhosis consists of five items (CHE, DBIL, ALB, ALT, GLO). The AUCs of model were 0.87 in the training set and 0.83 in validation set, respectively.</p><p><b>CONCLUSION</b>(1) The model consisting of CHE, DBIL, ALB, ALT, GLO improves the diagnostic value of routine laboratory items in discriminating chronic hepatitis from liver cirrhosis.</p>


Subject(s)
Adolescent , Adult , Female , Humans , Male , Middle Aged , Young Adult , Algorithms , Diagnosis, Differential , Hepatitis B, Chronic , Diagnosis , Liver , Pathology , Virology , Liver Cirrhosis , Diagnosis , Virology , Liver Function Tests , Logistic Models , Retrospective Studies
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