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1.

001-es BibID:BIBFORM071355
Első szerző:Antal-Szalmás Péter (laboratóriumi szakorvos)
Cím:Serum levels of lectin complement pathway molecules do not determine the risk of bacterial infections in patients with cirrhosis / P. Antal-Szalmás, I. Földi, D. Tornai, T. Tornai, Zs. Vitális, I. Tornai, T. Dinya, M. Papp
Dátum:2016
Megjegyzések:SE1.5Serum levels of lectin complement pathway molecules do not determine the risk of bacterial infections in patientswith cirrhosisP. Antal-Szalmás1, I. Földi2, D. Tornai1, T. Tornai2, Zs. Vitális2, I Tornai2, T. Dinya3, M. Papp21Department of Laboratory Medicine, 2Department of Internal Medicine, Division of Gastroenterology, 3Institute of Surgery, Faculty ofMedicine, University of Debrecen, Debrecen, HungaryBacterial infections are a significant cause of morbidity and mortality in cirrhosis. Lectin pathway molecules of the complement system aresynthesized in the liver and have a pivotal role in the innate host defense against infectious organisms. Mannose-binding lectin (MBL) andficolins (FCNs) act as soluble pattern recognition molecules, while mannan-binding lectin serine proteases (MASPs) are effector molecules inelimination of the pathogens. Low levels of the functional proteins increase the risk of various infectious diseases but their significance hasscarcely been investigated in cirrhosis related bacterial infections.Sera of 266 patients with cirrhosis and 160 healthy subjects were assayed for the concentrations of FCN-2, FCN-3 and MASP-2 by ELISAs.In cirrhosis, a 5-year follow-up observational study was conducted to assess a possible association between lectin levels and development ofclinically significant bacterial infections (CSI) and mortality.The FCN-2, FCN-3 and MASP-2 levels were significantly lower in cirrhosis compared to healthy controls (505 vs. 769 ng/ml, 7,301 vs.10,797 ng/ml and 212 vs. 412 ng/ml, respectively, p < 0.001 for all) and decreased according to disease severity as rated by Child-Pughstage. In Kaplan-Meier analysis time to development of CSI was associated with low level of FCN-3 ( < 4,857 ng/ml, p = 0.028) but notFCN-2 ( < 427 ng/ml, p = 0.068) or MASP-2 deficiency (p = 0.368). Combined FCN deficiency even more than individual molecules wereable to predict the development of these episodes. Patients with low level of both FCNs had a cumulative risk of an infection of 52%as compared to 31% with normal level of FCNs (p = 0.021). In multivariate Cox-regression analysis, clinical factors but not the serumlectin profile remained an independent predictor of CSI. Prior episode of CSI and in a stepwise manner, the disease severity as rated byChild-Pugh stage conferred higher risk for development of CSI (HR: 2.64, 95% CI: 1.74?3.99, p < 0.001 and 2.11, 95%CI: 1.52-2.93, p < 0.001,respectively).In the present prospective study, diseases severity and prior episode of CSI but not the serum lectin profile were major determinants ofthe risk of CSI in cirrhosis.
Tárgyszavak:Orvostudományok Klinikai orvostudományok idézhető absztrakt
Megjelenés:Clinical chemistry and laboratory medicine 54 : 10 (2016), p. 162. -
További szerzők:Földi Ildikó (1981-) (orvos) Tornai Dávid (1989-) (hepatológia, biomarker kutatás) Tornai Tamás István (1984-) (belgyógyász) Vitális Zsuzsanna (1963-) (belgyógyász, gasztroenterológus) Tornai István (1954-) (belgyógyász, gasztroenterológus) Dinya Tamás (1974-) (sebész szakorvos, onkológus szakorvos) Papp Mária (1975-) (belgyógyász, gasztroenterológus)
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2.

001-es BibID:BIBFORM030851
Első szerző:Bubán Tamás (belgyógyász, gasztroenterológus)
Cím:Detection of internal tandem duplications in the FLT3 gene by different electrophoretic methods / Tamás Bubán, Katalin Koczok, Róza Földesi, Gabriella Szabó, Andrea Sümegi, Miklós Tanyi, László Szerafin, Miklós Udvardy, János Kappelmayer, Péter Antal-Szalmás
Dátum:2011
Megjegyzések:Abstract Background: In acute myeloid leukemia (AML), the internal tandem duplication (ITD) in the juxtamembrane domain of the FLT3 (Fms-like tyrosine kinase 3) gene is one of the most frequent genetic alterations associated with poor prognosis. Methods: A complex evaluation of the analytical properties of the three most frequently used detection methods - PCR followed by agarose (AGE), polyacrylamide (PAGE) or capillary electrophoresis (CE) - was performed on 95 DNA samples obtained from 73 AML patients. Results: All the three methods verified the presence of a mutant allele in 20 samples from 18 patients. AGE and PAGE could detect the presence of 1%-2% mutant allele, while the detection limit of CE was 0.28%. However, acceptable reproducibility (inter-assay CV <25%) of the mutant allele rate determination was only achievable above 1.5% mutant/total allele rate. The reproducibility of the ITD size determination by CE was much better, but the ITD size calculated by PeakScanner or GeneScan analysis was 7% lower as compared to values obtained by DNA sequencing. The presence of multiple ITD was over-estimated by PAGE and AGE due to the formation of heteroduplexes. Conclusions: This study suggests the use of PCR+CE in the diagnostics and the follow-up of AML patients. The data further supports the importance of proper analytical evaluation of home-made molecular biological diagnostic tests.
Tárgyszavak:Orvostudományok Elméleti orvostudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
electrophoresis
FLT3
ITD
egyetemen (Magyarországon) készült közlemény
Megjelenés:Clinical Chemistry and Laboratory Medicine. - 50 : 2 (2011), p. 301-310. -
További szerzők:Koczok Katalin (1979-) (labororvos) Földesi Róza (1967-) (klinikai laboratóriumi kutató, PhD hallgató) Szabó Gabriella Sümegi Andrea (1969-) (biológus) Tanyi Miklós (1968-) (sebész) Szerafin László (1958-) (belgyógyászat, haematológia, klinikai onkológia szakorvos) Udvardy Miklós (1947-) (belgyógyász, haematológus) Kappelmayer János (1960-) (laboratóriumi szakorvos) Antal-Szalmás Péter (1968-) (laboratóriumi szakorvos)
Pályázati támogatás:TÁMOP-4.2.1/B-09/1/KONV-2010-0007
TÁMOP
Celluláris hematológia - immunológia
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3.

001-es BibID:BIBFORM115722
035-os BibID:(scopus)85174237539 (WoS)001086363000001
Első szerző:Hevessy Zsuzsanna (laboratóriumi szakorvos)
Cím:Algorithm of differential diagnosis of anemia involving laboratory medicine specialists to advance diagnostic excellence / Hevessy Zsuzsanna, Toth Gabor, Antal-Szalmas Peter, Tokes-Fuzesi Margit, Kappelmayer Janos, Karai Bettina, Ajzner Eva, Working Group on Guidelines, Algorithms of the Hungarian Society of Laboratory Medicine
Dátum:2023
ISSN:1434-6621
Tárgyszavak:Orvostudományok Klinikai orvostudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
Megjelenés:Clinical Chemistry And Laboratory Medicine. - 62 : 3 (2023), p. 410-420. -
További szerzők:Tóth Gábor (1989-) (általános orvos) Antal-Szalmás Péter (1968-) (laboratóriumi szakorvos) Tőkés-Füzesi Margit Kappelmayer János (1960-) (laboratóriumi szakorvos) Kárai Bettina (1984-) (orvos) Ajzner Éva (1968-) (laboratóriumi szakorvos) Working Group on Guidelines Algorithms of the Hungarian Society of Laboratory Medicine
Pályázati támogatás:EFOP-2.2.0-16-2016-00007
EFOP
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4.

001-es BibID:BIBFORM033174
Első szerző:Hevessy Zsuzsanna (laboratóriumi szakorvos)
Cím:Laboratory evaluation of a flow cytometric BCR-ABL immunobead assay / Zsuzsanna Hevessy, Renáta Hudák, Valéria Kiss-Sziráki, Péter Antal-Szalmás, Miklós Udvardy, László Rejtő, László Szerafin, János Kappelmayer
Dátum:2011
Megjegyzések:BACKGROUND: A new flow cytometric (FC) BCR-ABL immunobead assay has been developed recently. Here we present the laboratory evaluation of the commercially available kit. METHODS: Mononuclear cells were isolated, lysed and processed according to the instructions of the manufacturer. Anti-BCR antibodies adsorbed to capture beads bind the BCR-ABL fusion proteins of the lysed cells, a phycoerythrin (PE)-conjugated anti-ABL antibody is the detector reagent and mean fluorescence intensity (MFI) signals were recorded by flow cytometry. Detection of t(9;22)(q34;q11) translocation was carried out with a quantitative PCR assay. RESULTS: MFI results of 20 normal peripheral blood samples were 88±8 (mean±SD), CV 9%. K562 cells were used as positive control. Within-batch imprecision was excellent (3.7% in the normal and 10% in the pathological range). Cut-off was chosen at MFI 112, where both sensitivity and specificity were 100%. Altogether 17 chronic myeloid leukemia (CML) and 16 acute leukemia samples were analyzed. All PCR positive samples (n=14) were positive with the FC method and negative results were also concordant (n=15). Frozen cell lysates can be stored up to 4 weeks without significant decrease of MFI signal. CONCLUSIONS: The FC BCR-ABL assay is a fast, reproducible and reliable method that may be incorporated into standard flow cytometric protocols to help clinical decision-making.
Tárgyszavak:Orvostudományok Klinikai orvostudományok idegen nyelvű folyóiratközlemény külföldi lapban
egyetemen (Magyarországon) készült közlemény
Molekuláris Medicina
Megjelenés:Clinical Chemistry and Laboratory Medicine. - 50 : 4 (2011), p. 689-692. -
További szerzők:Hudák Renáta Kiss-Sziráki Valéria Antal-Szalmás Péter (1968-) (laboratóriumi szakorvos) Udvardy Miklós (1947-) (belgyógyász, haematológus) Rejtő László (1963-) (belgyógyász, haematológus) Szerafin László (1958-) (belgyógyászat, haematológia, klinikai onkológia szakorvos) Kappelmayer János (1960-) (laboratóriumi szakorvos)
Pályázati támogatás:TÁMOP-4.2.1/B-09/1/KONV-2010-0007
TÁMOP
Celluláris hematológia - immunológia
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5.

001-es BibID:BIBFORM068933
Első szerző:Hudák Renáta
Cím:Laboratory characterization of leukemic cell procoagulants / Renáta Hudák, Ildikó Beke Debreceni, Ivett Deák, Gabriella Gál Szabó, Zsuzsanna Hevessy, Péter Antal-Szalmás, Bjarne Osterud, János Kappelmayer
Dátum:2017
ISSN:1434-6621
Megjegyzések:Background: In acute myeloid leukemias, there is anincreased chance to develop thrombotic disorders. Wehypothesized that in addition to leukemic promyelocytes,monocytic leukemia cells may also have a higher procoagulantactivity.Methods: Fibrin formation was assessed by a one-stageclotting assay using a magnetic coagulometer. The thrombingeneration test (TGT) of magnetically isolated normalhuman monocytes, intact leukemic cells and their isolatedmicroparticles was performed by a fluorimetric assay.Phosphatidylserine (PS) expression of leukemic cells andmicroparticle number determinations were carried out byflow cytometry.Results: All cell lines displayed a significant procoagulantpotential compared to isolated normal human monocytes.In the TGT test, the mean of lagtime and the time to peakparameters were significantly shorter in leukemic cells(3.9?4.7 and 9.9?10.3 min) compared to monocytes (14.9and 26.5 min). The mean of peak thrombin in variousmonocytic leukemia cell lines was 112.1?132.9 nM vs.75.1 nM in monocytes; however, no significant differencewas observed in the ETP parameter. Factor VII-deficientplasma abolished all procoagulant activity, whereas factorXII-deficient plasma did not affect the speed of fibrinformation and thrombin generation but modulated theamount of thrombin. Factor XI-deficient plasma affectedthe time to peak values in one leukemic cell line and alsoattenuated peak thrombin. Leukemia cell-derived microparticlesfrom all three cell lines exerted a procoagulanteffect by significantly shortening the lagtime in TGT; therewas a nonsignificant difference in case of ETP parameter.Conclusions: All investigated monocytic leukemia celllines exhibited significant thrombin generation. This phenomenonwas achieved by the procoagulants on the surfaceof leukemic cells as well as by their microparticles.
Tárgyszavak:Orvostudományok Klinikai orvostudományok idegen nyelvű folyóiratközlemény külföldi lapban
monocytic leukemia
tissue factor
Megjelenés:Clinical Chemistry and Laboratory Medicine 55 : 8 (2017), p. 1215-1223. -
További szerzők:Bekéné Debreceni Ildikó (1970-) (biológus) Deák Ivett Gál Szabó Gabriella Hevessy Zsuzsanna (1966-) (laboratóriumi szakorvos) Antal-Szalmás Péter (1968-) (laboratóriumi szakorvos) Osterud, Bjarne Kappelmayer János (1960-) (laboratóriumi szakorvos)
Pályázati támogatás:TÁMOP-4.2.4.A/2-11-1-2012-0001
TÁMOP
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6.

001-es BibID:BIBFORM071356
Első szerző:Nagy Béla Jr. (labordiagnosztikai szakorvos)
Cím:Serum HE4 is a suitable inflammatory biomarker in cystic fibrosis / B. Nagy Jr., L. Fila, L. A. Clarke, Z. Fejes, P. Antal-Szalmás, J. Kappelmayer, M. D. Amaral, M. Macek Jr., I. Balogh
Dátum:2016
Megjegyzések:Serum HE4 is a suitable inflammatory biomarker in cystic fibrosisB. Nagy Jr1, L. Fila2, L.A. Clarke3, Z. Fejes1, P. Antal-Szalmás1, J. Kappelmayer1, M.D. Amaral3, M. Macek Jr4, I. Balogh11Department of Laboratory Medicine, Faculty of Medicine, University of Debrecen, Debrecen, Hungary, 2Department of Pulmonology,Charles University, 2nd Faculty of Medicine, Motol University Hospital, Prague, Czech Republic, 3University of Lisboa, Faculty of Sciences,BioISI-Biosystems & Integrative Sciences Institute, Lisboa, Portugal, 4Department of Biology and Medical Genetics, Motol UniversityHospital, 2nd Faculty of Medicine, Charles University, Prague, Czech RepublicIncreased human epididymis protein 4 (HE4) expression was previously observed in lung biopsy specimens of cystic fibrosis (CF). Accordingly,we presumed that serum HE4 concentrations were also elevated in CF, and might be used as a biomarker.In this study, 77 children with CF and 57 adult CF patients were enrolled. In parallel, 94 individuals with non-CF lung diseases, and 117normal controls without pulmonary disorders were analyzed. Serum HE4 was measured by chemiluminescent microparticle immunoassay(Architect?, Abbott). HE4 expression was further investigated via the quantification of HE4 mRNA using RT-qPCR in CF versus non-CF respiratoryepithelium biopsies. The expression of the potential regulator miR-140-5p was analyzed using an UPL-based RT-qPCR assay (Roche). Inaddition, HE4 was measured in the supernatants from unpolarized and polarized cystic fibrosis bronchial epithelial (CFBE) cells expressingWT- or F508del-CFTR.Serum HE4 levels were significantly elevated (P < 0.0001) in both CF children (99.5 [73.1-128.9] pmol/L) and CF adults (115.7 [77.8-148.7]pmol/L) compared to controls (36.3 [31.1-43.4] pmol/L). In contrast, abnormal but lower HE4 concentrations were found in cases of severebronchitis, asthma, pneumonia or bronchiectasis. HE4 concentrations positively correlated with disease severity and C-reactive protein concentrations in CF, while a significant inverse relationship was found between HE4 and the spirometric FEV1 value. Relative HE4 mRNAlevels were significantly augmented (P = 0.011) in the presence of decreased miR-140-5p expression (P = 0.020) in CF versus non-CF airwaybiopsies. Finally, 2-fold higher HE4 concentrations were measured in the supernatants of polarized F508del-CFTR CFBE cells compared toWT cells.In conclusion, serum HE4 positively correlates with the overall severity of CF and the degree of pulmonary dysfunction. Thus, HE4 maybe used as a novel inflammatory biomarker and for the treatment efficacy in this lung disease.
Tárgyszavak:Orvostudományok Klinikai orvostudományok idézhető absztrakt
Megjelenés:Clinical chemistry and laboratory medicine 54 : 10 (2016), p. 184-185. -
További szerzők:Fila, Libor Clarke, Luka A. Fejes Zsolt (1988-) (molekuláris biológus) Antal-Szalmás Péter (1968-) (laboratóriumi szakorvos) Kappelmayer János (1960-) (absztraktok) Amaral, Margarida D. Macek Jr., Milan Balogh István (1972-) (molekuláris biológus, genetikus)
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7.

001-es BibID:BIBFORM054045
Első szerző:Nagy Béla Jr. (labordiagnosztikai szakorvos)
Cím:Serum human epididymis protein 4 (HE4) as a tumor marker in men with lung cancer / Béla Nagy, Harjit Pal Bhattoa, Zoltán Steiber, Mária Csobán, Mária Szilasi, Gábor Méhes, Mónika Müller, József Lázár, János Kappelmayer, Péter Antal-Szalmás
Dátum:2014
ISSN:1434-6621
Tárgyszavak:Orvostudományok Klinikai orvostudományok idegen nyelvű folyóiratközlemény külföldi lapban
Megjelenés:Clinical Chemistry and Laboratory Medicine. - 52 : 11 (2014), p. 1639-1648. -
További szerzők:Bhattoa Harjit Pal (1973-) (laboratóriumi szakorvos) Steiber Zoltán Csobán Mária Szilasi Mária (1953-) (tüdőgyógyász, klinikai immunológus, allergológus, belgyógyász) Méhes Gábor (1966-) (patológus) Müller Mónika Lázár József Kappelmayer János (1960-) (laboratóriumi szakorvos) Antal-Szalmás Péter (1968-) (laboratóriumi szakorvos)
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8.

001-es BibID:BIBFORM075566
Első szerző:Nagy Gábor (laboratóriumi szakorvos, laboratóriumi hematológus és immunológus)
Cím:Monitoring of drug level and anti-drug antibody production during vedolizumab therapy in patients with inflammatory bowel disease / G. Nagy, É. Török, K. Palatka, Z. Kébel, P. Antal-Szalmás
Dátum:2018
Megjegyzések:Integrin ?4?7 is expressed on gut-specific lymphocytes and plays a pivotal role in their migration to the intestine. Vedolizumab (VDZ, trade name Entyvio), a humanized monoclonal IgG1 antibody to the ?4?7 integrin blocks their adhesion to the gut vascular endothelium. In 2014 Entyvio was approved for patients with ulcerative colitis (UC) and Crohn's disease (CD) in Hungary. Our aim was to find and evaluate laboratory tests capable of measuring vedolizumab and anti-vedolizumab antibody (AVA) levels. After overviewing the available methods, LISA-TRACKER Duo Vedolizumab ELISA kit (ref: LTV 005, TheraDiag, Croissy-Beaubourg, France) was chosen. Seventeen samples of 15 patients (9 UC/6 CD) were analyzed. Mean VDZ levels were 18.2 ?g/mL and 7.4 ?g/mL in patients with UC and CD, respectively (p=0.242). Drug levels were significantly higher in patients on concomitant immune modulating therapy (16.9 ?g/mL vs 3.9 ?g/mL, p=0.033). There was no significant correlation between drug concentrations and CRP or disease activity scores. Anti-vedolizumab antibody was not detected in any of the patients (0/15) in accordance with the approximately 4% AVA positivity reported in vedolizumab immunogenicity studies (p=0.430). Five patients had drug levels under the measuring range of the test (<2 ?g/mL) suggesting the possibility of having low affinity anti-drug antibodies not detected by the bridging ELISA method used. In conclusion, LISA-TRACKER Duo Vedolizumab ELISA kit seems to be appropriate to monitor drug and anti-drug antibody levels in patients with inflammatory bowel disease. However, insensitivity of the ELISA methods for detecting low affinity anti-drug antibody may limit its use to determine immunogenicity of vedolizumab.
Tárgyszavak:Orvostudományok Klinikai orvostudományok idézhető absztrakt
Megjelenés:Clinical Chemistry and Laboratory Medicine. - 56 : 9 (2018), p. eA162. -
További szerzők:Török Éva Palatka Károly (1961-) (belgyógyász, gasztroenterológus) Kébel Z. Antal-Szalmás Péter (1968-) (laboratóriumi szakorvos)
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9.

001-es BibID:BIBFORM075565
Első szerző:Nagy Gábor (laboratóriumi szakorvos, laboratóriumi hematológus és immunológus)
Cím:Diagnostic algorithm for antinuclear antibody testing : clinical and financial considerations / G. Nagy, I. Csípő, E. Gyimesi, J. Tóth, S. Demeter, P. Antal-Szalmás
Dátum:2018
Megjegyzések:The diagnostics of autoimmune rheumatic diseases strongly depends on laboratory tests, dominantly on autoantibody determinations. Several techniques and assay types are available for evaluation of the autoantibody profile of these patients. The most widely used indirect immunofluorescence (IIF) assay on HEp-2 cells can identify dozens of antinuclear (ANA) and anti-cytoplasmic autoantibodies, while ELISA-s or immunoblots utilizing mixed or single antigens can identify the exact specificity of them. Since the application (replacement and sequential order) of these tests is rather ambiguous we developed an algorithm for the most frequently used antinuclear and anti-cytoplasmic autoantibodies and evaluated clinical and financial efficacy of this novel system. The number and results of autoantibody determinations (ANA HEp-2 IIF, anti-dsDNA and anti-ENA tests) between January and June, 2017 were collected from our laboratory information system (GLIMS). The theoretical number of autoantibody tests was recalculated along the following rule: anti-dsDNA and anti-ENA tests were performed only if ANA HEp-2 IIF was positive. Separate analyses were performed taking into account the ANA HEp-2 IIF patterns and titers, too. Our results showed that the ANA HEp-2 IIF guided selection of anti-dsDNA and anti-ENA ELISAs could reduce the number of anti-dsDNA and anti-ENA tests by 48% and 56%, sparing about 7.1M HUF per year. The rate of ANA HEp-2 IIF negative but anti-dsDNA positive cases was 1.8%, meaning 64 samples, from which 16 patients (0.45%) had significantly higher (>2x URL) anti-dsDNA value. The rate of ANA HEp-2 IIF negative but anti-ENA positive samples was 1.1% (56 cases). 14 and 19 of these patients showed only anti-SS-A or anti-Jo-1 positivity, known to be weakly reactive on HEp-2 cells. The described sequential application of ANA HEp-2 IIF assay, anti-dsDNA and anti-ENA ELISAs provided high clinical efficacy and proved to be cost-effective.
Tárgyszavak:Orvostudományok Klinikai orvostudományok idézhető absztrakt
Megjelenés:Clinical Chemistry and Laboratory Medicine. - 56 : 9 (2018), p. eA139-eA140. -
További szerzők:Csípő István (1953-) (vegyész) Gyimesi Edit (1957-) (klinikai biokémikus, vegyész) Tóth Judit (1978-) (laboratóriumi szakorvos) Demeter S. Antal-Szalmás Péter (1968-) (laboratóriumi szakorvos)
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10.

001-es BibID:BIBFORM071357
Első szerző:Nagy Gábor (laboratóriumi szakorvos, laboratóriumi hematológus és immunológus)
Cím:The role of automated microscopes and computer aided pattern recognition in autoantibody detection by indirect / G. Nagy, I. Csípő, J. Kappelmayer, P. Antal-Szalmás
Dátum:2016
Megjegyzések:The role of automated microscopes and computer aided pattern recognition in autoantibody detection by indirectimmunofluorescence assaysG. Nagy, I. Csípő, J. Kappelmayer, P. Antal-SzalmásDepartment of Laboratory Medicine, Faculty of Medicine, University of Debrecen, Debrecen, HungaryIndirect immunofluorescene assays (IFA) are versatile and sensitive solid phase tests for detecting autoantibodies needed to confirm the diagnosisof autoimmune diseases. Utilization of cells or tissue sections as the antigen source makes these assays capable of detecting antibodiesto delicate epitopes masked in other tests such as enzyme linked immunosorbent assay or immunoblot. However, conventional microscopicevaluation of the fluorescent patterns is time consuming and prone to transcription error.In our work we compared four automated fluorescence microscopes (Helios-Aesku Diagnostics, NovaView-Werfen Group, Europattern-Euroimmun, Image Navigator-Immunoconcept) regarding the number of available antigen substrates, specifications of the image capture andanalysis system, extent of the automation, patient safety and impact on the daily routine workflow.All four systems are able to detect antinuclear (ANA) and anti-cytoplasmic antibodies on HEp-2 epithelial cells (positive/negative discriminationonly) while Europattern and NovaView also help with the recognition of the most frequent ANA patterns. The sensitivity ofANA positive/negative discrimination is rather similar between the systems (around 95%), while the specificity varies between 85 to 95%.The capability for detection of anti-neutrophil cytoplasmic antibodies (ANCA) and image capture from other substrates like rat liver-kidneystomach(LKS) shows variability between the different analyzers. Similarly, the throughput, titer-estimation and physical parameters differsignificantly.Automation of the indirect immunofluorescence autoantibody testing is beneficial. In addition to slide processing, several fluorescencemicroscopes are available now which are able to digitize and archive IFA images. Their image analysis software helps to evaluate samples,making the indirect immunofluorescence method less laborious and error-prone.
Tárgyszavak:Orvostudományok Klinikai orvostudományok idézhető absztrakt
Megjelenés:Clinical Chemistry and Laboratory Medicine 54 : 10 (2016), p. 202. -
További szerzők:Csípő István (1953-) (vegyész) Kappelmayer János (1960-) (absztraktok) Antal-Szalmás Péter (1968-) (laboratóriumi szakorvos)
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