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Effect of ageing on colonic mucosal regeneration

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World Journal of Gastroenterology 2011年第25期17卷 2981-2986页

作者： Ferenc Sipos katalin Leiszter Zsolt Tulassay 2nd Department of Internal Medicine Semmelweis University Molecular Medicine Research Unit Hungarian Academy of Sciences

The physiologic and pathologic cellular and molecular changes occurring with age in the human colon affect both the inflammatory process leading to mucosal injury and the regenerative capacity of the *** the one hand,age-related telomere shortening and inflamm-ageing may lead to the development of colonic inflammation,which results in epithelial *** the other hand,the altered migration and function of regenerative stem cells,the age-related methylation of mucosal healing-associated genes,together with the alterations of growth factor signaling with age,may be involved in delayed mucosal *** connections of these alterations to the process of ageing are not fully *** understanding and customtailored modification of these mechanisms are of great clinical importance with regard to disease prevention and modern therapeutic ***,we aim to summarize the age-related microscopic and molecular changes of the human colon,as well as their role in altered mucosal healing.

关键词： Colon Mucosal repair Ageing Colorectalcancer Telomere shortening DNA methylation

Who will carry out the tests that would be necessary for proper safety evaluation of food emulsifiers?

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Food Science and Human Wellness 2019年第2期8卷 126-135页

作者： katalin FCsáki∗ Éva Sebestyén National Food Chain Safety Office Directorate for Food Safety Risk AssessmentPO BOX 407H-1537 BudapestHungary

Surfactant food emulsifiers are among the most extensively used food *** all authorized food additives,emulsifiers have been evaluated by risk assessors,who consider them as ***,there are growing concerns among scientists about their possible harmful effects on intestinal barriers and *** is also suggested that emulsifier consumption might be one of the main causes of the rising incidence of a number of diseases,such as allergic diseases,celiac disease,type I diabetes and Crohn’s ***,it has recently been suggested that emulsifier consumption might contribute to the development of metabolic syndrome and can promote colitis-associated colorectal cancer *** paper provides an overview of the current scientific knowledge on possible effects of surfactant emulsifiers on intestinal barriers and also of regulatory risk assessment *** main objective is to reveal the reasons for the discrepancies between the opinions of risk assessors and the scientific *** would like to draw the attention of the academic world to the need of specific in vivo and/or clinical studies for each emulsifier in order to help risk assessors make adequate evaluations and rule out with certainty that authorized food emulsifiers pose a safety concern to consumers’health.

关键词： Food emulsifiers Surfactants Intestinal barriers Crohn’s diseases Microbiota Risk assessment EFSA

尤·米·洛特曼文学符号学中的区分与移位原则

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俄罗斯文艺 2024年第1期 132-142页

作者： [匈牙利]卡塔林·克罗李瑞莲匈牙利罗兰大学俄罗斯语言文学系大连外国语大学俄语学院

本文基于对移位与区分原则的分析,探究洛特曼文学符号学中的意义生成与更新机制,揭示其符号学术语体系内在的关联性与一致性。作者将移位与区分置于有序化、符号域、约定性等概念与术语的有机联系中加以综合考察,从语义、结构、语境等... 详细信息

本文基于对移位与区分原则的分析,探究洛特曼文学符号学中的意义生成与更新机制,揭示其符号学术语体系内在的关联性与一致性。作者将移位与区分置于有序化、符号域、约定性等概念与术语的有机联系中加以综合考察,从语义、结构、语境等多重视角阐释这一问题在洛特曼文学符号学研究中的独特价值。本文认为,移位作为意义区分的一种主要符号学策略,参与文本内与文本间符号交流的动态过程,对意义的不确定性、开放性、多元性等问题的研究具有重要意义。

关键词：洛特曼文学符号学移位区分

Classification of submucosal tumors in the gastrointestinal tract

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World Journal of Gastroenterology 2007年第24期13卷 3311-3315页

作者： Laura Graves Ponsaing katalin Kiss Mark Berner Hansen Department ofSurgical Gastroenterology K Bispebjerg University Hospital ofCopenhagen Denmark Department of Pathology Herlev UniversityHospital Gentofte Denmark

This review is part two of three, which will present an update on the classification of gastrointestinal submucosal tumors. Part one treats of the diagnosis and part three of the therapeutic methods regarding gastrointestinal submucosal tumors. In the past there has been some confusion as to the classification of gastrointestinal submucosal tumors. Changes in classifications have emerged due to recent advances in mainly immunohistochemistry and electron microscopy. The aim of this paper is to update the reader on the current classification. Literature searches were performed to find information related to classification of gastrointestinal submucosal tumors. Based on these searches the twelve most frequent submucosal tumor types were chosen for description of their classification. The factors that indicate whether tumors are benign or malignant are mainly size and number of mitotic counts. Gastrointestinal stromal tumors are defined mainly by their CD117 positivity. In the future, there should be no more confusion between gastrointestinal stromal tumors and other types of submucosal tumors.

关键词： Submucosal tumor Immunohistochemistry Smooth muscle derived submucosal tumors Submucosal tumors of neurogenic origin Gastrointestinal stromal tumor Malignant Benign

Clinical relevance of changes in bone metabolism in inflammatory bowel disease

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World Journal of Gastroenterology 2010年第44期16卷 5536-5542页

作者： Pal Miheller katalin Lrinczy Peter Laszlo Lakatos 1st Department of Medicine Semmelweis University

Low bone mineral density is an established, frequent, but often neglected complication in patients with inflammatory bowel disease (IBD). Data regarding the diagnosis, therapy and follow-up of low bone mass in IBD has been partially extrapolated from postmenopausal osteoporosis; however, the pathophysiology of bone loss is altered in young patients with IBD. Fracture, a disabling complication, is the most important clinical outcome of low bone mass. Estimation of fracture risk in IBD is difficult. Numerous risk factors have to be considered, and these factors should be weighed properly to help in the identification of the appropriate patients for screening. In this editorial, the authors aim to highlight the most important clinical aspects of the epidemiology, prevention, diagnosis and treatment of IBD-related bone loss.

关键词： Inflammatory bowel disease Crohn’s disease Osteoporosis Osteopenia Prevention

Correlation between severity of endoscopic findings and apnea-hypopnea index in patients with gastroesophageal reflux disease and obstructive sleep apnea

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World Journal of Gastroenterology 2005年第6期11卷 839-841页

作者： Pál Demeter katalin Várdi Visy Pál Magyar Department of Gastroenterology Department of Pulmonology

AIM: To assess the relationship between severity of gastroesophageal reflux disease and apnea-hypopnea index (AHI) as an indicator of the severity of obstructive sleep apnea. METHODS: Data of 57 patients with proven obstructive sleep apnea and gastroesophageal reflux disease were analyzed. Patients were divided into two groups according to severity of the sleep apnea: 'mild-moderate' (A)-AHI 5≥5-30, n=27, 'severe' (B)-AHI >30, n=30. All patients underwent apnea monitoring during the night, upper panendoscopy and were asked about typical reflux symptoms. RESULTS: All examined patients in both groups showed a significant overweight and there was a positive correlation between body mass index and the degree of sleep apnea (P = 0.0002). The occurence of erosive reflux disease was significantly higher in 'severe' group (P = 0.0001). Using a logistic regression analysis a positive correlation was found between the endoscopic severity of reflux disease and the AHI (P = 0.016). Forty-nine point five percent of the patients experienced the typical symptoms of reflux disease at least three times a week and there was no significant difference between the two groups. CONCLUSION: A positive correlation can be found between the severity of gastroesophageal reflux disease and obstructive sleep apnea.

关键词： Obstructive sleep apnea Gastroesophageal reflux disease Severity Correlation

Changes in lipid metabolism in chronic hepatitis C

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World Journal of Gastroenterology 2005年第41期11卷 6422-6428页

作者： katalin Jármay Gizella Karácsony András Nagy Zsuzsa Schaff First Department of Internal Medicine Albert Szent-Gy(o|¨)rgyi Medical University SzegedHungary County Hospital Department of Cardiology KecskemétHungary 2nd Department of Pathology Semmelweis University BudapestHungary

AIM: To investigate the relationship between certain biochemical parameters of lipid metabolism in the serum and steatosis in the ***: The grade of steatosis (0-3) and histological activity index (HAI, 0-18) in liver biopsy specimens were correlated with serum alanine aminotransferase (ALT), total cholesterol and triglyceride levels in 142 patients with chronic hepatitis C (CH-C), and 28 patients with non-alcoholic fatty liver disease (NAFLD) without hepatitis C virus (HCV) infection. The serum parameters were further correlated with 1 797 age and sex matched control patients without any liver ***: Steatosis was detected in 90 out of 142 specimens (63%) with CH-C. The ALT levels correlated with the grade of steatosis, both in patients with CH-C and NAFLD (P＜0.01). Inserting the score values of steatosis as part of the HAI, correlation with the ALT level (P＜0.00001) was found. The triglyceride and cholesterol levels were significantly lower in patients with CH-C (with and without steatosis), compared to the NAFLD group and to the virus-free control ***: Our study confirms the importance of liver steatosis in CH-C which correlates with lower lipid levels in the sera. Inclusion of the score of steatosis into HAI, in case of CH-C might reflect the alterations in the liver tissue more precisely, while correlating with the ALT enzyme elevation.

关键词： Lipid metabolism, Chronic hepatitis C NAFLD

Successful use of adalimumab for treating fistulizing Crohn's disease with pyoderma gangrenosum:Two birds with one stone

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World Journal of Gastroenterology 2009年第18期15卷 2293-2295页

作者： Eva Zold Arpad Nagy katalin Devenyi Margit Zeher Zsolt Barta Division of Clinical Immunology 3rd Department of MedicineMedical and Health Science CenterUniversity of DebrecenDebrecen 4004Hungary Euromedic Diagnostics Szeged Kft Debrecen 4004Hungary

Crohn＇s disease （CD） is a chronic relapsing and remitting autoinflammatory disorder of the gastrointestinal tract that has many intestinal and extraintestinal complications. The purpose of treatment is long-term remission, reduction of complications, and improvement of patients＇ quality of life. In many cases, this can be quite challenging and it is necessary to have a well thought out management strategy. We present the case of a 38-year-old woman with fistulizing CD that manifested as diffuse abdominal pain and bloody diarrhea accompanied by arthralgia. In addition, there were ulcerative lesions surrounded by cutaneous inflammation and erythema on her extremities, indicative of pyoderma gangrenosum. The patient was treated with high doses of parenteral methylprednisolone without any improvement and was started on adalimumab. A positive response to adalimumab therapy was observed： after 2 mo of therapy, the ulcerative skin lesion healed completely and the enterogastric fistula was closed affcer 5 mo adalimumab treatment. Adalimumab might be a suitable initial as well as maintenance therapy in patients with complicated CD.

关键词： Adalimumab Crohn's disease Pyoderma gangrenosum

Long-term conservation tillage results in a more balanced soil microbiological activity and higher nutrient supply capacity

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International Soil and Water Conservation Research 2023年第3期11卷 528-537页

作者： Priyo Adi Nugroho katalin Juhos Nandor Prettl Balazs Madarasz Zsolt Kotroczo Department of Agro-Environmental Studies Institute of Environmental ScienceHungarian University of Agriculture and Life SciencesHungary Geographical Institute Research Centre for Astronomy and Earth SciencesBudapestHungary

Soil health depletion due to intensive tillage operations is a global issue in the agricultural *** tillage(CT)which involves non-inversion tillage and leaving~30%of the soil surface covered with crop residues,is a strategy designed to enhance soil ***,no comprehensive study to investigate the long-term effect of CT on soil biological activity and the soil nutrient supply has yet been widely carried *** and chemical soil properties were assessed at depths 0-5,10-15,and 20-25 cm depths after 18 years of CT and conventional tillage practice(PT).Various stages in the vegetative growth of maize were investigated in 2021 in *** findings indicated that tillage intensity,soil depth,and growth stages all significantly influenced soil enzyme activities and the concentration of soil *** soil disturbance resulted in a significantly larger concentration of soil carbon parameters(total organic carbon and labile carbon)in CT plots,where the activity ofβ-glucosidase and dehydrogenase(DHA)in the upper soil layer increased significantly(0.7-2.6 and 2.6-4.7 times,respectively)compared to *** high amount of organic matter and the greater resistance to erosion observed in CT also contributed to the higher concentration of available nutrients(NH_(4),NO_(3),Ca,K)and total P in the surface soil *** activity was highest in the mid-stage of vegetative growth and was positively correlated to the total P *** alterations in soil water content were clearly negatively corelated with the change in DHA and phosphatase ***,due to the more balanced environmental conditions,the decomposition of organic substances was more balanced and slower in CT than in *** implied that the mobilization of nutrients in the soil was more balanced as well,and that the nutrients were released *** enhancement of the soil nutrient-supplying capacity achieved by means of long-term conservation tillage provid

关键词： Dehydrogenase β-glucosidase Phosphatase Nutrient balance Mineralization