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| 1 | Alterations of glutathione S-transferase and matrix metalloproteinase-9 expressions are early events in esophageal carcinogenesis显示文摘AIM: To investigate the role of glutathione S-transferase (GST) and matrix metalloproteinase-9 (MMP-9) expres-sions in the development and progression of reflux es-ophagitis-Barrett’s metaplasia-dysplasia-adenocarcinoma sequence in the esophagus.METHODS: GST and MMP-9 expressions were analyzed in 51 paraffin-embedded tissue samples by immunohisto-chemistry including patients with reflux esophagitis (n = 7), Barrett’s metaplasia (n = 14), Barrett and esophagi-tis (n = 8), Barrett and dysplasia (n = 7), esophageal adenocarcinoma (n = 8) and a control group without any histological changes (n = 7). Immunostaining was determined semiquantitatively. Statistical analysis with one-way ANOVA, LSD test and correlation analysis were performed. P value of < 0.05 was considered significant.RESULTS: GST expression was significantly higher while MMP-9 expression was significantly lower in control group compared to Barrett’s metaplasia and the other groups. No major changes were observed between Bar-rett, esophagitis, and Barrett and concomitant esophagi-tis. Barrett and concomitant dysplasia, and adenocarci-noma revealed a significant lower expression of GST and higher levels of MMP-9 compared to all other groups. Adenocarcinoma showed almost no expression of GST and significantly higher levels of MMP-9 than Barrett and concomitant dysplasia. Alterations of GST and MMP-9 were inversely correlated (r = - 0.82).CONCLUSION: Decreased GST and increased ex-pression of MMP-9 in Barrett’s metaplasia-dysplasia-adenocarcinoma sequence as compared to normal tissue suggest their association with esophageal tumorigenesis. Loss of GST and gain of MMP-9 in Barrett with dyspla-sia compared to non-dysplastic metaplasia indicate that these alterations may be early events in carcinogenesis. Quantification of these parameters in Barrett’s esopha-gus might be useful to identify patients at higher risk for progression to cancer. | Laszlo Herszenyi Istvan Hritz Istvan Pregun Ferenc Sipos Mark Juhasz Bela Molnar Zsolt Tulassay | 2007 | World Journal of Gastroenterology2007，13，5： | 37 |
| 2 | Long-term omeprazole and esomeprazole treatment does not significantly increase gastric epithelial cell proliferation and epithelial growth factor receptor expression and has no effect on apoptosis and p53 expression显示文摘AIM: To study the effect of proton pump inhibitor (PPI)treatment on patients with reflux esophagitis and its in vivo effect on apoptosis, p53- and epidermal growth factor receptor (EGFR) expression.METHODS: After informed consent was obtained, gastric biopsies of the antrum were taken from patients with reflux oesophagitis prior to and after 6 mo of 20 mg omeprazole (n = 14) or 40 mg esomeprazole (n = 12) therapy.Patients did not take any other medications known to affect the gastric mucosa. All patients were Helicobacter pylori negative as confirmed by rapid urease test and histology,respectively. Cell proliferation, apoptosis, EGFR, and p53expression were measured by immunohistochemical techniques. At least 600 glandular epithelial cells were encountered and results were expressed as percentage of total cells counted. Was considered statistically significant.RESULTS: Although there was a trend towards increase of cell proliferation and EGFR expression both in omeprazole and esomeprazole treated group, the difference was not statistically significant. Neither apoptosis nor p53 expression was affected.CONCLUSION: Long-term PPI treatment does not significantly increase gastric epithelial cell proliferation and EGFR expression and has no effect on apoptosis and p53 expression. | Istvan Hritz Laszlo Herszenyi Bela Molnar Zsolt Tulassay Laszlo Pronai | 2005 | World Journal of Gastroenterology2005，11，30： | 7 |
| 3 | Discrimination and Quantification of True Biological Signals in Metabolomics Analysis Based on Liquid Chromatography-Mass Spectrometry显示文摘 | Duan, Lixin Molnar, Istvan Snyder, John Hugh Shen, Guo-an Qi, Xiaoquan | 2016 | Molecular Plant2016，9，8： | 3 |
| 4 | Is early limited surgery associated with a more benign disease course in Crohn's disease?显示文摘AIM:To analyze the difference in disease course and need for surgery in patients with Crohn’s disease(CD).METHODS:Data of 506 patients with incident CD were analyzed(age at diagnosis:31.5±13.8 years).Both hospital and outpatient records were collected prospectively with a complete clinical follow-up and comprehensively reviewed in the population-based Veszprem province database,which includes incident CD patients diagnosed between January 1,1977 and December 31,2008.Follow-up data were collected until December 31,2009.All patients included had at least 1year of follow-up available.Patients with indeterminate colitis at diagnosis were excluded from the analysis.RESULTS:Overall,73 patients(14.4%)required resective surgery within 1 year of diagnosis.Steroid exposure and need for biological therapy were lower in patients with early limited surgery(P<0.001 and P=0.09).In addition,surgery rates during follow-up in patients with and without early surgery differed significantly after matching on propensity scores(P<0.001,HR=0.23).The need for reoperation was also lower in patients with early limited resective surgery(P=0.038,HR=0.42)in a Kaplan-Meier and multivariate Cox regression(P=0.04)analysis.However,this advantage was not observed after matching on propensity scores(PLogrank=0.656,PBreslow=0.498).CONCLUSION:Long-term surgery rates and overall exposure to steroids and biological agents were lower in patients with early limited resective surgery,but reoperation rates did not differ. | Petra Anna Golovics Laszlo Lakatos Attila Nagy Tunde Pandur Istvan Szita Mihaly Balogh Csaba Molnar Erzsebet Komaromi Barbara Dorottya Lovasz Michael Mandel Gabor Veres Lajos S Kiss Zsuzsanna Vegh Peter Laszlo Lakatos | 2013 | World Journal of Gastroenterology2013，19，43： | 3 |
| 5 | Evolution of disease phenotype in adult and pediatric onset Crohn's disease in a population-based cohort显示文摘AIM:To investigate the evolution of disease phenotypein adult and pediatric onset Crohn's disease(CD) populations,diagnosed between 1977 and 2008.METHODS:Data of 506 incident CD patients were analyzed(age at diagnosis:28.5 years,interquartile range:22-38 years).Both in-and outpatient records were collected prospectively with a complete clinical follow-up and comprehensively reviewed in the population-based Veszprem province database,which included incident patients diagnosed between January 1,1977 and December 31,2008 in adult and pediatric onset CD populations.Disease phenotype according to the Montreal classification and long-term disease course was analysed according to the age at onset in time-dependent univariate and multivariate analysis.RESULTS:Among this population-based cohort,seventy-four(12.8%) pediatric-onset CD patients were identified(diagnosed ≤ 17 years of age).There was no significant difference in the distribution of disease behavior between pediatric(B1:62%,B2:15%,B3:23%) and adult-onset CD patients(B1:56%,B2:21%,B3:23%) at diagnosis,or during follow-up.Overall,the probability of developing complicated disease behaviour was 49.7% and 61.3% in the pediatric and 55.1% and 62.4% in the adult onset patients after 5-and 10-years of follow-up.Similarly,time to change in disease behaviour from non stricturing,non penetrating(B1) to complicated,stricturing or penetrating(B2/B3) disease was not significantly different between pediatric and adult onset CD in a Kaplan-Meier analysis.Calendar year of diagnosis(P = 0.04),ileal location(P < 0.001),perianal disease(P < 0.001),smoking(P = 0.038) and need for steroids(P < 0.001) were associated with presence of,or progression to,complicated disease behavior at diagnosis and during follow-up.A change in disease location was observed in 8.9% of patients and it was associated with smoking status(P = 0.01),but not with age at diagnosis.CONCLUSION:Long-term evolution of disease behavior was not different in pediatric-and adult-onset CD patients in this population-based cohort but was associated to location,perianal disease and smoking status. | Barbara Dorottya Lovasz Laszlo Lakatos Agnes Horvath Istvan Szita Tunde Pandur Michael Mandel Zsuzsanna Vegh Petra Anna Golovics Gabor Mester Mihaly Balogh Csaba Molnar Erzsebet Komaromi Lajos Sandor Kiss Peter Laszlo Lakatos | 2013 | World Journal of Gastroenterology2013，19，14： | 2 |
| 6 | NKX2-3 and IRGM variants are associated with diseasesu sceptibility to IBD in Eastern European patients显示文摘AIM: To investigate variants of immunity-related GT-Pase family M (IRGM) and NKX2-3 genes and genotype-phenotype in Eastern European patients with inflammatory bowel disease (IBD).METHODS: We analyzed 1707 Hungarian and Czech subjects with Crohn’s disease (CD) (n = 810, age: 37.1 ± 12.6 years, duration: 10.7 ± 8.4 years) and ulcerative colitis (UC) (n = 428, age: 43.7 ± 15.0 years, duration: 12.6 ± 9.9 years), as well as 469 healthy controls. IRGM rs13361189, NKX2-3 rs10883365 and ECM1 rs13294 polymorphisms were tested by LightCy-cler allele discrimination. Detailed clinical phenotypes were determined by reviewing the medical charts. RESULTS: NKX2-3 rs10883365 variant allele was as-sociated with increased risk for CD (P = 0.009, OR = 1.24, 95% CI = 1.06-1.48) and UC (P = 0.001, OR = 1.36, 95% CI = 1.13-1.63), whereas variant IRGM allele increased risk for CD (P = 0.029, OR = 1.36, 95% CI = 1.03-1.79). In contrast, ECM1 rs13294 was not associat-ed with either CD or UC. In CD, the variant IRGM allele was associated with a colon-only location (P = 0.02, OR = 1.62, 95% CI = 1.07-2.44), whereas in UC, the ECM1 variant was associated with cutaneous manifestations (P = 0.002, OR = 3.36, 95% CI = 1.48-7.63). Variant alleles did not predict resistance to steroids or azathio-prine, efficacy of infliximab, or need for surgery. CONCLUSION: NKX2-3 and IRGM are susceptibility locifor IBD in Eastern European patients. Further studies are needed to confirm the reported phenotype-genotype associations. | Nora Meggyesi Lajos S Kiss Magdalena Koszarska Martin Bortlik Dana Duricova Laszlo Lakatos Tamas Molnar Martin Lenicek Libor Vítek Istvan Altorjay Maria Papp Zsolt Tulassay Pal Miheller Janos Papp Attila Tordai Hajnalka Andrikovics Milan Lukas Peter Laszlo Lakatos | 2010 | World Journal of Gastroenterology2010，16，41： | 2 |
| 7 | The risk of lymphoma and immunomodulators in patients with inflammatory bowel diseases: Results from a population-based cohort in Eastern Europe显示文摘 | Peter L. Lakatos Barbara D. Lovasz Gyula David Tunde Pandur Zsuzsanna Erdelyi Gabor Mester Mihaly Balogh Istvan Szipocs Csaba Molnar Erzsebet Komaromi Petra A. Golovics Zsuzsanna Vegh Michael Mandel Agnes Horvath Miklos Szathmari Lajos S. Kiss Laszlo Laka | 2012 | Journal of Crohn’s and Colitis2012，，： | 1 |
| 8 | Performance Analysis of Multifractal Network Traffic显示文摘 | DANG TRANG DINH MOLNAR SANDOR MARICZA ISTVAN | 2004 | European Transactions on Telecommunications2004，15，2： | 1 |
| 9 | Sleep dis- orders and quality of life in renal transplant recipients 显示文摘 | Miklos Zsolt Molnar Marta Novak Istvan Mucsi | 2009 | Int Urol Nephro12009，41，： | 1 |
| 10 | Risk of colorectal cancer and small bowel adenocarcinoma in Crohn’s disease: A population-based study from western Hungary 1977–2008显示文摘 | Peter Laszlo Lakatos Gyula David Tunde Pandur Zsuzsanna Erdelyi Gabor Mester Mihaly Balogh Istvan Szipocs Csaba Molnar Erzsebet Komaromi Lajos S. Kiss Laszlo Lakatos | 2010 | Journal of Crohn’s and Colitis2010，，2： | 1 |
| 11 | Secondary metabolites from entomopathogenic Hypocrealean fungi显示文摘 | Istvan Molnar Gibson Donna M Krasnoff Stuart B | 2010 | Narual Product Reports2010，27，9： | 1 |
| 12 | IBD in the elderly population: Results from a population-based study in Western Hungary, 1977–2008显示文摘 | Peter Laszlo Lakatos Gyula David Tunde Pandur Zsuzsanna Erdelyi Gabor Mester Mihaly Balogh Istvan Szipocs Csaba Molnar Erzsebet Komaromi Lajos S. Kiss Laszlo Lakatos | 2010 | Journal of Crohn’s and Colitis2010，，： | 1 |
| 13 | Symptoms of Depression in Kidney Transplant Recipients: A Cross-sectional Study显示文摘 | Lilla Szeifert Miklos Zsolt Molnar Csaba Ambrus Agnes Borbala Koczy Agnes Zsofia Kovacs Eszter Panna Vamos Andras Keszei Istvan Mucsi Marta Novak | 2009 | American Journal of Kidney Diseases2009，，1： | 1 |
| 14 | Tumor marker utility and prognostic relevance of cathepsin B, cathepsin L, urokinase-type plasminogen activator, plasminogen activator inhibitor type-1, CEA and CA 19-9 in colorectal cancer 显示文摘 | Herszenyi L Farinati F Cardin R Istvan G Molnar LD Hritz I | 2008 | BMC Cancer2008，8，10： | 1 |
| 15 | Common and conflicting objectives and practices of herders and conservation managers:the need for a conservation herder显示文摘The mutual dependence of extensive land-use and conservation management has become appar-ent in Europe in the last 20-30 yr.Extensive land-use often survives in protected areas only,in the form of conservation management.Knowledge of extensive herding and that of conservation management are parts of two knowledge systems(traditional and scientific)which often leads to conflicts between locals and con-servationists.We studied two herding/conservation systems(salt steppes and wood-pastures),and devel-oped an inventory on the common/similar and conflicting/different objectives and pasture management practices of herders and conservationists.Data were collected by participatory knowledge co-production in teamwork of the co-authors(herders,conservation managers,and scientists).Data were analyzed and discussed in teamwork too.Herders and conservationists identified 23 objectives and 29 management prac-tices.We found a number of common interests with respect to herding,the ideal state of pastures,legal provisions,and communication.Conflict resolution recommendations(e.g.,on time and place of grazing,pasture improvements)were also developed.We argue that by co-production of knowledge,and establish-ment of a herder“school”the mitigation of the existing conflicts would be more effective.Our conclusion is that a new profession is needed:that of the conservation herder.The conservation herder shall be an indi-vidual knowledgeable about herding and pasture management,trained in conservation and ecology,able to design management experiments,and develop novel but tradition-based management practices.As such,he/she could facilitate adaptation of extensive herding in the changing socio-economic environment. | Zsolt Molnar Jozsef Kis Csaba Vadasz Laszlo Papp Istvan Sandor Sandor Beres Gabor Sinka Anna Varga | 2016 | Ecosystem Health and Sustainability2016，2，4： | 0 |
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