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001-es BibID:	BIBFORM036331
Első szerző:	Kovács Márta
Cím:	Pancreatic autoantibodies and autoantibodies against goblet cells in pediatric patients with inflammatory bowel disease (IBD) / Kovacs Marta, Lakatos Peter Laszlo, Papp Maria, Jacobsen Silvia, Nemes Eva, Polgar Marianne, Solyom Eniko, Bodi Piroska, Horvath Agnes, Muller Katalin Eszter, Molnar Kriszta, Szabo Doloresz, Cseh Aron, Dezsofi Antal, Arato Andras, Veres Gabor
Dátum:	2012
ISSN:	0277-2116
Megjegyzések:	Significance of pancreatic autoantibodies determined by using exocrine pancreas (PAB) and recombinant pancreas antigens (rPAB), as well as importance of autoantibodies against goblet cells (GAB) are not known in pediatric patients with inflammatory bowel disease (IBD). Our aim was to determine the complex analysis of PAB, rPAB, GAB, antibodies against Saccharomyces cerevisiae (ASCA), and perinuclear components of neutrophils (pANCA) in pediatric IBD patients. Moreover, association with NOD2/CARD15 and disease phenotype was determined. METHODS: 152 pediatric patients (median age 13.9 years) with IBD [103 patients with Crohn's disease (CD) and 49 patients with ulcerative colitis (UC)] and 104 controls were included. Serum autoantibodies were determined by indirect immunofluorescens assay. NOD2/CARD15 variants were tested by polymerase chain reaction/restriction fragment length polymorphism. RESULTS: The presence of PAB and rPAB was significantly higher in CD (34% and 35.9%) and in UC (20.4% and 24.5%) compared to pediatric control cohort (0% and 0%, p < 0.0001). In addition, GAB positivity was significantly increased in patients with UC in comparison to CD and controls, respectively (UC, 12.2%, CD, 1.9%, controls, 1.9%, p=0.02). Specificity of PAB and rPAB was 100%, however, sensitivity was low. The combination of PAB and/or ASCA/pANCA improved the sensitivity of serological markers in CD (87.4%) and in UC (79.6%); specificities were 89.3% and 93.2%, respectively. Pancreatic autoantibodies (PAB, rPAB) and GAB were not related to clinical presentation, medical therapy or need for surgery in CD or in UC. CONCLUSIONS: Pancreatic autoantibodies and GAB were specific for IBD but the sensitivity was limited as well as there was lack of correlation with clinical phenotype. Combinations of these antibodies have shown increased sensitivity, therefore, it may be recommended in the diagnostic procedure of IBD.
Tárgyszavak:	Orvostudományok Klinikai orvostudományok idegen nyelvű folyóiratközlemény külföldi lapban
Megjelenés:	Journal Of Pediatric Gastroenterology And Nutrition 55 : 4 (2012), p. 429-435. -
További szerzők:	Lakatos Péter (Semmelweis Egyetem) Papp Mária (1975-) (belgyógyász, gasztroenterológus) Jacobsen, Silvia Nemes Éva (1957-) (csecsemő- és gyermekgyógyász, gasztroenterológus) Polgár Marianna Sólyom Enikő Bodi Piroska Horváth Ágnes (Veszprém) Müller Katalin Eszter Molnár Kriszta Szabó Dolóresz Cseh Áron Dezsőfi Antal Arató András Veres Gábor (1969-2020) (csecsemő- és gyermekgyógyász, gasztroenterológus)
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001-es BibID:	BIBFORM036330
Első szerző:	Kovács Márta
Cím:	Low mannose-binding lectin (MBL) is associated with paediatric inflammatory bowel diseases and ileal involvement in patients with Crohn disease / Kovacs Marta, Papp Maria, Lakatos Peter Laszlo, Jacobsen Silvia, Nemes Eva, Polgar Marianne, Solyom Eniko, Bodi Piroska, Horvath Agnes, Molnar Kriszta, Szabo Doloresz, Cseh Aron, Muller Katalin Eszter, Dezsofi Antal, Arato Andras, Veres Gabor
Dátum:	2013
ISSN:	1873-9946
Megjegyzések:	BACKGROUND: Mannose-binding lectin (MBL) is a pattern-recognition molecule of the innate immune system and may be involved in the pathogenesis of inflammatory bowel disease (IBD). Our aim was to assess the prevalence of MBL deficiency in a cohort of patients with paediatric-onset IBD and study whether it is associated with the clinical manifestations, serum antibody formation, or genetic factors. METHODS: This prospective study included 159 paediatric patients (mean age: 14.0years) with IBD [107 patients with Crohn disease (CD) and 52 patients with ulcerative colitis (UC)]. Furthermore, 95 controls were investigated. Serum samples were determined for MBL by enzyme-linked immunosorbent assay (ELISA) and for serologic markers [autoantibodies against Saccharomyces cerevisiae (ASCA) and perinuclear components of neutrophils (pANCA)] by indirect immunofluorescent assay. NOD2/CARD15 variants were tested by polymerase chain reaction/restriction fragment length polymorphism. RESULTS: The MBL serum concentration was significantly lower in IBD patients(both with CD and UC) compared to controls (IBD, p=0.007, CD, p=0.04, UC p=0.004). Prevalence of low MBL level (<500ng/mL) was significantly higher in both CD and UC groups compared to controls (p=0.002 and p=0.006). Furthermore, low MBL level was associated with isolated ileal involvement (p=0.01) and MBL deficiency (<100ng/mL) with male gender (p=0.004) in patients with CD. We failed to confirm any correlation between MBL deficiency and serum autoantibodies or NOD2/CARD15 variants. CONCLUSIONS: Our results suggest that low MBL associated with paediatric-onset IBD and ileal CD may be considered an additional marker of the IBD pathogenesis.
Tárgyszavak:	Orvostudományok Klinikai orvostudományok idegen nyelvű folyóiratközlemény külföldi lapban
Megjelenés:	Journal of Crohns & Colitis 7 : 2 (2013), p. 134-141. -
További szerzők:	Papp Mária (1975-) (belgyógyász, gasztroenterológus) Lakatos Péter (Semmelweis Egyetem) Jacobsen, Silvia Nemes Éva (1957-) (csecsemő- és gyermekgyógyász, gasztroenterológus) Polgár Marianna Sólyom Enikő Bodi Piroska Horváth Ágnes (Veszprém) Molnár Kriszta Szabó Dolóresz Cseh Áron Müller Katalin Eszter Dezsőfi Antal Arató András Veres Gábor (1969-2020) (csecsemő- és gyermekgyógyász, gasztroenterológus)
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001-es BibID:	BIBFORM045007
Első szerző:	Papp Mária (belgyógyász, gasztroenterológus)
Cím:	High prevalence of IgA class anti-neutrophil cytoplasmic antibodies (ANCA) is associated with increased risk of bacterial infection in patients with cirrhosis / Maria Papp, Nora Sipeki, Zsuzsanna Vitalis, Tamás Tornai, Istvan Altorjay, Istvan Tornai, Miklos Udvardy, Kai Fechner, Silvia Jacobsen, Bianca Teegen, Andrea Sumegi, Gabor Veres, Peter Laszlo Lakatos, Janos Kappelmayer, Peter Antal-Szalmas
Dátum:	2013
ISSN:	0168-8278
Megjegyzések:	Background&Aims: Anti-neutrophil cytoplasmic antibodies(ANCA) are a non-uniformfamily of antibodies recognizing diverse components of neutrophil granulocytes. ANCA formation might be induced by protracted bacterial infections or probably reflect an abnormal immune response to commensal microorganisms. Bacterial infections are common complications in cirrhosis with high incidence of episodes caused by enteric organisms, therefore, we sought to study the presence and clinical importance of ANCA in cirrhosis. Methods: Sera of 385 patients with cirrhosis of different etiologies were assayed for ANCA of IgG, IgA, IgA1, IgA2 and secretory IgA subtypes by indirect immunofluorescence and ELISAs. Control group comprised of 202 patients with chronic liver diseases without cirrhosis and 100 healthy subjects. In cirrhosis, a 2-year follow-up, observational study was conducted to assess possible association between presence of ANCA and clinically significant bacterial infections. Results: Prevalence of ANCA IgA was significantly higher in cirrhosis(52.2%) compared to chronic liver diseases(18.6%) or healthy controls (0%, p 0.001for both). ANCA IgA subtyping assays revealed marked increase in the proportion of IgA2 subtype (46% of total ANCA IgA) and presence of the secretory component concurrently. Presence of ANCA IgA was associated to disease-specific clinical characteristics (Child-Pugh stage and presence of ascites, p 0.001). During a 2-year follow-up period, risk of infectionswas higher among patients with ANCA IgA compared to those without (41.8% vs. 23.4%, p 0.001). ANCA IgA positivity was associated with a shorter time to the first infectiouscomplication (pLogRank0.001) in Kaplan?Meier analysis and was identified as anindependent predictor in multivariate Cox-regression analysis (HR:1.74, 95%CI:1.18?2.56, p=0.006). Conclusions: Presence of IgA type ANCA is common in cirrhosis. Involvement of gut mucosal immune system is in center of the formation and probably reflects sustained exposure to bacterial constituents.
Tárgyszavak:	Orvostudományok Klinikai orvostudományok idegen nyelvű folyóiratközlemény külföldi lapban anti-neutrophil cytoplasmic antibodies cirrhosis bacterial infection
Megjelenés:	Journal of Hepatology. - 59 : 3 (2013), p. 457-466. -
További szerzők:	Sipeki Nóra (1987-) (általános orvos) Vitális Zsuzsanna (1963-) (belgyógyász, gasztroenterológus) Tornai Tamás István (1984-) (belgyógyász) Altorjay István (1954-) (belgyógyász, gasztroenterológus, onkológus) Tornai István (1954-) (belgyógyász, gasztroenterológus) Udvardy Miklós (1947-) (belgyógyász, haematológus) Fechner, Kai Jacobsen, Silvia Teegen, Bianca Sümegi Andrea (1969-) (biológus) Veres Gábor (1969-2020) (csecsemő- és gyermekgyógyász, gasztroenterológus) Lakatos Péter (Semmelweis Egyetem) Kappelmayer János (1960-) (laboratóriumi szakorvos) Antal-Szalmás Péter (1968-) (laboratóriumi szakorvos)
Pályázati támogatás:	T046694 OTKA TÁMOP-4.2.1./B-09/1/KONV-2010-0007 TÁMOP TÁMOP-4.2.2.A-11/1/KONV-2012-0025 TÁMOP
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