27 results on '"Bognar M"'
Search Results
2. Cognitive control adjustments are dependent on the level of conflict
- Author
-
Bognar, M, Szekely, Z, Varga, M, Nagy, K, Spinelli, G, Hartanto, A, Majeed, N, Chen, N, Gyurkovics, M, Aczel, B, Bognar, Miklos, Szekely, Zsuzsa, Varga, Marton A., Nagy, Kinga, Spinelli, Giacomo, Hartanto, Andree, Majeed, Nadyanna M., Chen, Nicole Rui Ying, Gyurkovics, Mate, Aczel, Balazs, Bognar, M, Szekely, Z, Varga, M, Nagy, K, Spinelli, G, Hartanto, A, Majeed, N, Chen, N, Gyurkovics, M, Aczel, B, Bognar, Miklos, Szekely, Zsuzsa, Varga, Marton A., Nagy, Kinga, Spinelli, Giacomo, Hartanto, Andree, Majeed, Nadyanna M., Chen, Nicole Rui Ying, Gyurkovics, Mate, and Aczel, Balazs
- Abstract
The congruency sequence effect (CSE) is one of the most investigated effects in the cognitive control literature. The conflict monitoring theory suggests that the CSE is the result of adjustments in cognitive control based on perceived conflict. A recent paper by Zhang and colleagues, has investigated whether the manipulation of conflict level by changing distractor incompatibility in a flanker task affects the amount of adjustments in cognitive control. Their study produced mixed findings, somewhat supporting the original conflict monitoring theory, but also suggesting other explanations, such as the repetition expectancy account. We replicated the experimental design in a multisite online study (N = 347), with Hungarian, Italian, and Singaporean participants. Our results supported the prediction that changes in the level of conflict trigger conflict adaptation, revealing that increasing conflict levels induced stronger adaptive control. Bayesian hypothesis testing indicated a monotonic reduction in congruency effects as a function of previous conflict strength. This finding is in line with the extension of the traditional conflict monitoring theory, as well as other theories like affective signaling and expected value of control, implying that the relationship between conflict and interference effects is gradual, rather than a binary function.
- Published
- 2024
3. Polarization of Climate and Environmental Attitudes in the United States, 1973-2022
- Author
-
Smith, E. Keith, Bognar, M. Julia, and Mayer, Adam P.
- Subjects
Environmental attitudes ,Climate change ,Polarization ,Harmonized pooled crossnational data - Abstract
Since the early 1990s, political polarization has been the largest determinant of individual-level environmental and climate change attitudes. But several patterns remain unclear: whether polarization has been largely bimodal or is rather asymmetrical, how polarization patterns have changed over time, and if these patterns are generalizable across different environmental and climate change attitudes. We harmonized four unique sets of historical pooled cross-sectional survey data from the past 50 years to investigate shifts in seven distinct measures of citizen environmental and climate change attitudes for evidence of asymmetric polarization. We find evidence of two distinct historical patterns of asymmetric polarization: first, with Republicans becoming less environmentally-minded, beginning in the early-1990s, and second, a more recent greening of Democratic environmental attitudes since the mid-2010s. These polarization patterns diverge across seven measures of environmental and climate change attitudes, and are robust against sociodemographic, period, and birth cohort factors, OSF Preprints
- Published
- 2022
- Full Text
- View/download PDF
4. Long‐Term Safety of Rituximab in Patients With Rheumatoid Arthritis: Results of a Five‐Year Observational Study
- Author
-
Winthrop, Kevin L., primary, Saag, Kenneth, additional, Cascino, Matthew D., additional, Pei, Jinglan, additional, John, Ani, additional, Jahreis, Angelika, additional, Haselkorn, Tmirah, additional, Furst, Daniel E., additional, Abdulky, M., additional, Abeles, M., additional, Adelglass, H., additional, Ahmed, A., additional, Alloway, J., additional, Alper, J., additional, Anand, A., additional, Anderson, J., additional, Arora, M., additional, Askari, A., additional, Baca, S., additional, Bacha, D., additional, Bagheri, S., additional, Ballou, S., additional, Bennett, R., additional, Bidula, L., additional, Blumstein, H., additional, Bognar, M., additional, Bohan, A., additional, Boniske, C., additional, Borofsky, M., additional, Box, E., additional, Braun, A., additional, Brennan, T., additional, Brent, L., additional, Cabalar, I., additional, Carteron, N., additional, Chaudhary, K., additional, Chauhan, A., additional, Cima, M., additional, Cochinwala, A., additional, Cohen, H., additional, Colburn, K., additional, Conaway, D., additional, Danning, C., additional, Dao, K., additional, Dean, J., additional, Diab, I., additional, Diegel, R., additional, Ditzian‐Kadanoff, R., additional, Dowd, J., additional, Dugowson, C., additional, Eggebeen, A., additional, El‐Kadi, H., additional, Feinberg, H., additional, Feinman, M., additional, Feinstein, J., additional, Fischer, A., additional, Foad, B., additional, Fondal, M., additional, Fraser, S., additional, Fraser, A., additional, Freeman, P., additional, Garber, M., additional, Goldstein, A., additional, Golombek, S., additional, Greenstein, N., additional, Greenwald, M., additional, Hakim, C., additional, Halla, J., additional, Hallegua, D., additional, Han, K., additional, Harris, B., additional, Hauptman, H., additional, Hirsh, J., additional, Hoffman, M., additional, Huntwork, J., additional, Husni, M., additional, Hyer, F., additional, Hymowitz, R., additional, Jones, R., additional, Kanagasegar, S., additional, Kappes, J., additional, Keating, R., additional, Kelly, G., additional, Kim, J., additional, King, C., additional, Klashman, D., additional, Knee, C., additional, Kolba, K., additional, Krick, G., additional, Krug, H., additional, Kumar, U., additional, Lakhanpal, S., additional, Lang, T., additional, Lauter, S., additional, Lawrence Ford, T., additional, Lee, W., additional, Lee, Y., additional, Leisen, J., additional, Levine, J., additional, Lidman, R., additional, Lipstate, J., additional, Malinak, J., additional, Marcus, R., additional, Martin, D., additional, Mehta, C., additional, Melton, G., additional, Metyas, S., additional, Miller, K., additional, Moidel, R., additional, Moore, C., additional, Mossell, J., additional, Munoz, G., additional, Murphy, F., additional, Nami, A., additional, Nascimento, J., additional, Neal, N., additional, Neiman, R., additional, Neuwelt, C., additional, Nguyen, P., additional, Niemer, M., additional, Oelke, K., additional, Oza, M., additional, Pachaidee, S., additional, Patel, S., additional, Pegram, S., additional, Penmetcha, M., additional, Perkins, J., additional, Perl, A., additional, Peterson, L., additional, Pittsley, R., additional, Portnoff, K., additional, Rahmani, D., additional, Raja, N., additional, Ratnoff, W., additional, Rezaian, M., additional, Rhea, C., additional, Rice, D., additional, Ridley, D., additional, Rivadeneira, A., additional, Rizzo, W., additional, Roane, G., additional, Rocca, P., additional, Rosen, M., additional, Saikali, W., additional, Saitta, M., additional, Sankoorikal, A., additional, Saway, P., additional, Schneider, P., additional, Schwartzman, S., additional, Scoville, C., additional, Shergy, W., additional, Shiel, W, additional, Shurmur, R., additional, Sikes, D., additional, Singhal, A., additional, Snyder, A., additional, Songcharoen, S., additional, Sosenko, M., additional, Soto Raices, O., additional, Stahl, N., additional, Stark, K., additional, Strachan, M., additional, Stupi, A., additional, Sullivan, N., additional, Sylvester, R., additional, Tabechian, D., additional, Tagoe, C., additional, Taylor, P., additional, Thakker, S., additional, Thakor, M., additional, Thakur, N., additional, Tidmore, W., additional, Toth, M., additional, Trostle, D., additional, Udell, J., additional, Van de Stouwe, M., additional, Venuturupalli, R., additional, Weiss, D., additional, Weselman, K., additional, Winn, D., additional, Yung, C., additional, Zable, E., additional, and Zamiri, B., additional
- Published
- 2019
- Full Text
- View/download PDF
5. Functional analyses of oncogenic CARMA1 mutants reveal a crosstalk between NF-KB and P-Catenin in lymphoma.
- Author
-
Bognar, M.
- Published
- 2015
6. Oncogenic CARMA1 couples NF-κB and β-catenin signaling in diffuse large B-cell lymphomas
- Author
-
Bognar, M K, primary, Vincendeau, M, additional, Erdmann, T, additional, Seeholzer, T, additional, Grau, M, additional, Linnemann, J R, additional, Ruland, J, additional, Scheel, C H, additional, Lenz, P, additional, Ott, G, additional, Lenz, G, additional, Hauck, S M, additional, and Krappmann, D, additional
- Published
- 2016
- Full Text
- View/download PDF
7. GNOJIDBA PŠENICE U SUSTAVU PRECIZNE POLJOPRIVREDE.
- Author
-
Rapčan, Irena, Jurišić, M., Plaščak, I., Barač, Ž., Zimmer, D., and Bognar, M.
- Abstract
Copyright of Agronomy Journal / Agronomski Glasnik (0002-1954) is the property of Croatian Society of Agronomists and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2018
8. Regulating risk : explaining diverging labeling policies between Canada and the European Union and whether these differences can be reconciled
- Author
-
Bognar, M. Julia
- Abstract
This paper deals with the causes behind policy divergence concerning non-product related production and process methods (nprPPMs), specifically Canada’s preference for voluntary labeling regimes and the European Union’s (EU) preference for mandatory labeling regimes. The causes behind this divergence are explored in three case studies: labels for genetically modified foods, animal welfare labels, and ecolabeling. Particular attention is paid to the differing approaches to risk analysis (RAF), namely that Canada employs a scientific-based approach to this framework, while the EU more often employs a social-based approach. While it has been common for many academics to attribute these diverging approaches to differences in consumer preferences and civic interests, this paper argues that these explanations do not fully account for these policy outcomes, as demonstrated by the similarities in consumer preferences and civic movements in these regions. Instead, diverging regulatory approaches are caused by systematic institutional differences. This paper then focuses on reconciling trade barriers caused by diverging regulatory approaches using methods of policy coordination, specifically mutual recognition agreements as a bilateral approach and policy harmonization as a multilateral approach. In regards to policy harmonization, relevant international agreements and organizations pertaining to nprPPM labeling regulations are discussed, most notably relevant WTO rules. This paper concludes that bilateral efforts to reduce the negative trade effects caused by the three case studies will be extremely difficult to resolve due to the fact that Canada and the EU are engaged in a regulatory competition between global powers for the dominance of either a science-based, or social based approach to RAF. This competition has resulted in vague international rules, which are therefore incapable of facilitating policy harmonization at the multilateral level. This paper will conclude that Canada and the EU are unlikely able to reconcile trade barriers caused by at least of the two case studies discussed here, GM food labels and animal welfare labels. Recommendations are made for bilateral and multilateral efforts to prevent further trade barriers caused by future nprPPM regulations.
- Published
- 2008
- Full Text
- View/download PDF
9. Contexts in Lambda Calculus
- Author
-
Bognar, M., Klop, Jan Willem, de Vrijer, R.C., and Theoretical Computer Science
- Published
- 2002
10. The context cube lambda[]: Barendregt's lambda cube with contexts
- Author
-
Bognar, M., de Vrijer, R.C., Kamareddine, F., and Theoretical Computer Science
- Published
- 2002
11. The context calculus lambda-c
- Author
-
Bognar, M., de Vrijer, R.C., and Theoretical Computer Science
- Published
- 1999
12. Advertising agencies see the pros of pro-bono
- Author
-
Bognar, M, Waller, DS, Bognar, M, and Waller, DS
- Abstract
While most people would associate pro bono work with the legal industry, a number of advertising agencies are discovering the benefits in taking on a pro bono client. Although this is not a new activity by agencies, some articles in the industry literature are suggesting that this is an area of growing interest. This paper will discuss the various types of pro bono work offered by advertising agencies and the advantages and disadvantages by observing discussion in the industry literature. From the literature it appears that even though an agency may want to be seen as a good citizen by helping charities and community groups, there are also definite business reasons for doing this work, such as motivating and refreshing staff, increasing agency profile and prestige, providing a creative opportunity, as well as attracting paying clients. Therefore, the reasons for doing pro bono work may not be as altruistic as in other industries.
- Published
- 2009
13. Bayesian Inference for Discretely Sampled Markov Processes with Closed-Form Likelihood Expansions
- Author
-
Stramer, O., primary, Bognar, M., additional, and Schneider, P., additional
- Published
- 2010
- Full Text
- View/download PDF
14. Salicylate toxicity in the older patient.
- Author
-
Varela, Noemi, Bognar, Marata, Agudelo, Carlos, Jurado, Rafael, Varela, N, Bognar, M, Agudelo, C, and Jurado, R
- Published
- 1998
- Full Text
- View/download PDF
15. Embedding of locally compact Abelian topological groups in Euclidean spaces
- Author
-
Bognar, M., primary
- Published
- 1963
- Full Text
- View/download PDF
16. Az oktatás és a képzés helye a területfejlesztésben. Mintaterület: az Ózd-putnoki kistérség
- Author
-
Bognár Mária, Imre Anna, and Mezei István
- Subjects
humánerőforrás ,humánerőforrás-fejlesztés ,oktatás ,képzés ,válságtérség ,History (General) and history of Europe ,Economic history and conditions ,HC10-1085 ,Economic growth, development, planning ,HD72-88 ,Sociology (General) ,HM401-1281 ,International relations ,JZ2-6530 - Abstract
A tanulmány az Ózd–putnoki kistérség, mint válságtérség példáján mutatja be a humánerőforrás-fejlesztés szükségességét, fontosságát. Az emberi erőforrások átgondolt rendszerbe foglalt fejlesztése egy hátrányos helyzetű térség számára igen fontos. A tanulmány rámutat arra, hogy a vizsgált kistérség rendelkezik azokkal az intézményekkel, szervezeti formákkal, amelyek alkalmassá tennék összehangolt fejlesztési stratégia megvalósítására, azonban ehhez az oktatás-képzés és a munkaerőpiac szereplői közötti szorosabb együttműködésre lenne szükség.
- Published
- 2001
- Full Text
- View/download PDF
17. Advertising agencies see the pros of pro-bono
- Author
-
Waller, DS and Bognar, M
- Abstract
While most people would associate pro bono work with the legal industry, a number of advertising agencies are discovering the benefits in taking on a pro bono client. Although this is not a new activity by agencies, some articles in the industry literature are suggesting that this is an area of growing interest. This paper will discuss the various types of pro bono work offered by advertising agencies and the advantages and disadvantages by observing discussion in the industry literature. From the literature it appears that even though an agency may want to be seen as a good citizen by helping charities and community groups, there are also definite business reasons for doing this work, such as motivating and refreshing staff, increasing agency profile and prestige, providing a creative opportunity, as well as attracting paying clients. Therefore, the reasons for doing pro bono work may not be as altruistic as in other industries.
- Published
- 2009
18. The curve of control: Nonmonotonic effects of task difficulty on cognitive control.
- Author
-
Bognar M, Gyurkovics M, Aczel B, and van Steenbergen H
- Abstract
The U-shaped curve has long been recognized as a fundamental concept in psychological science, particularly in theories about motivational accounts and cognitive control. In this study ( N = 330), we empirically tested the prediction of a nonmonotonic, curvilinear relationship between task difficulty and control adaptation. Drawing from motivational intensity theory and the expected value of control framework, we hypothesized that control intensity would increase with task difficulty until a maximum tolerable level, after which it would decrease. To examine this hypothesis, we conducted two experiments utilizing Stroop-like conflict tasks, systematically manipulating the number of distractors to vary task difficulty. We assessed control adaptation and measured subjective task difficulty. Our results revealed a curvilinear pattern between perceived task difficulty and adaptation of control. The findings provide empirical support for the theoretical accounts of motivational intensity theory and expected value of control, highlighting the nonlinear nature of the relationship between task difficulty and cognitive control. (PsycInfo Database Record (c) 2024 APA, all rights reserved).
- Published
- 2024
- Full Text
- View/download PDF
19. Cognitive control adjustments are dependent on the level of conflict.
- Author
-
Bognar M, Szekely Z, Varga MA, Nagy K, Spinelli G, Hartanto A, Majeed NM, Chen NRY, Gyurkovics M, and Aczel B
- Subjects
- Humans, Reaction Time, Bayes Theorem, Cognition, Conflict, Psychological, Research Design
- Abstract
The congruency sequence effect (CSE) is one of the most investigated effects in the cognitive control literature. The conflict monitoring theory suggests that the CSE is the result of adjustments in cognitive control based on perceived conflict. A recent paper by Zhang and colleagues, has investigated whether the manipulation of conflict level by changing distractor incompatibility in a flanker task affects the amount of adjustments in cognitive control. Their study produced mixed findings, somewhat supporting the original conflict monitoring theory, but also suggesting other explanations, such as the repetition expectancy account. We replicated the experimental design in a multisite online study (N = 347), with Hungarian, Italian, and Singaporean participants. Our results supported the prediction that changes in the level of conflict trigger conflict adaptation, revealing that increasing conflict levels induced stronger adaptive control. Bayesian hypothesis testing indicated a monotonic reduction in congruency effects as a function of previous conflict strength. This finding is in line with the extension of the traditional conflict monitoring theory, as well as other theories like affective signaling and expected value of control, implying that the relationship between conflict and interference effects is gradual, rather than a binary function., (© 2024. The Author(s).)
- Published
- 2024
- Full Text
- View/download PDF
20. Case report: metoclopramide induced acute dystonic reaction in adolescent CYP2D6 poor metabolizers.
- Author
-
Fink FM, Bognar M, Hengl P, Paulmichl M, and Nofziger C
- Abstract
Metoclopramide is indicated for the management of gastroesophageal reflux, gastric stasis, nausea, and vomiting. Metoclopramide-induced acute dystonic reactions (MIADRs), along with repetitive involuntary protrusion of the tongue, are well-known phenomena in children and young adults that may appear after the first dose. The drug is primarily metabolized via oxidation by the cytochrome P450 enzyme CYP2D6 and to a lesser extent by CYP3A4 and CYP1A2. A recommendation to decrease metoclopramide dosing in patients with severely limited to no CYP2D6 activity (i.e., poor metabolizers, PMs) is included in the drug label. It is important to note, however, that a requirement or recommendation for pre-emptive testing for CYP2D6 metabolizer status is not included in the drug label. We present two cases of acute dystonia in two non-consanguineous male adolescents: one following metoclopramide and cimetidine administration in a 14-year-old to treat gastroesophageal reflux, and another following metoclopramide and pantoprazole administration in a 17-year-old with acute gastroenteritis. A retrospective pharmacogenetic analysis revealed both patients as CYP2D6 PMs., Competing Interests: CN was employed by PharmGenetix GmbH, a private laboratory providing PGx testing, reporting, and interpretation services. The authors declare that this study received funding from the Österreichische Forschungsförderungsgesellschaft GmbH (FFG). The funder was not involved in the study design, collection, analysis, interpretation of data, the writing of this article, or the decision to submit it for publication., (Copyright © 2023 Fink, Bognar, Hengl, Paulmichl and Nofziger.)
- Published
- 2023
- Full Text
- View/download PDF
21. Phasic affective signals by themselves do not regulate cognitive control.
- Author
-
Bognar M, Gyurkovics M, van Steenbergen H, and Aczel B
- Subjects
- Humans, Bayes Theorem, Affect physiology, Cognition physiology, Conflict, Psychological, Emotions physiology
- Abstract
Cognitive control is a set of mechanisms that help us process conflicting stimuli and maintain goal-relevant behaviour. According to the Affective Signalling Hypothesis, conflicting stimuli are aversive and thus elicit (negative) affect, moreover - to avoid aversive signals - affective and cognitive systems work together by increasing control and thus, drive conflict adaptation. Several studies have found that affective stimuli can indeed modulate conflict adaptation, however, there is currently no evidence that phasic affective states not triggered by conflict also trigger improved cognitive control. To investigate this possibility, we intermixed trials of a conflict task and trials involving the passive viewing of emotional words. We tested whether affective states induced by affective words in a given trial trigger improved cognitive control in a subsequent conflict trial. Applying Bayesian analysis, the results of four experiments supported the lack of adaptation to aversive signals, both in terms of valence and arousal. These results suggest that phasic affective states by themselves are not sufficient to elicit an increase in control.
- Published
- 2023
- Full Text
- View/download PDF
22. Is there evidence for cross-domain congruency sequence effect? A replication of Kan et al . (2013).
- Author
-
Aczel B, Kovacs M, Bognar M, Palfi B, Hartanto A, Onie S, Tiong LE, and Evans TR
- Abstract
Exploring the mechanisms of cognitive control is central to understanding how we control our behaviour. These mechanisms can be studied in conflict paradigms, which require the inhibition of irrelevant responses to perform the task. It has been suggested that in these tasks, the detection of conflict enhances cognitive control resulting in improved conflict resolution of subsequent trials. If this is the case, then this so-called congruency sequence effect can be expected to occur in cross-domain tasks. Previous research on the domain-generality of the effect presented inconsistent results. In this study, we provide a multi-site replication of three previous experiments of Kan et al . (Kan IP, Teubner-Rhodes S, Drummey AB, Nutile L, Krupa L, Novick JM 2013 Cognition 129 , 637-651) which test congruency sequence effect between very different domains: from a syntactic to a non-syntactic domain (Experiment 1), and from a perceptual to a verbal domain (Experiments 2 and 3). Despite all our efforts, we found only partial support for the claims of the original study. With a single exception, we could not replicate the original findings; the data remained inconclusive or went against the theoretical hypothesis. We discuss the compatibility of the results with alternative theoretical frameworks., (© 2021 The Authors.)
- Published
- 2021
- Full Text
- View/download PDF
23. Combinatorial BTK and MALT1 inhibition augments killing of CD79 mutant diffuse large B cell lymphoma.
- Author
-
Nagel D, Bognar M, Eitelhuber AC, Kutzner K, Vincendeau M, and Krappmann D
- Subjects
- Adenine analogs & derivatives, Agammaglobulinaemia Tyrosine Kinase, Apoptosis drug effects, Apoptosis genetics, Blotting, Western, CARD Signaling Adaptor Proteins genetics, CARD Signaling Adaptor Proteins metabolism, CD79 Antigens genetics, Caspases genetics, Cell Line, Tumor, Cell Survival drug effects, Cell Survival genetics, Drug Resistance, Neoplasm drug effects, Drug Resistance, Neoplasm genetics, Drug Synergism, Guanylate Cyclase genetics, Guanylate Cyclase metabolism, Humans, Jurkat Cells, Lymphoma, Large B-Cell, Diffuse genetics, Lymphoma, Large B-Cell, Diffuse metabolism, Lymphoma, Large B-Cell, Diffuse pathology, Mucosa-Associated Lymphoid Tissue Lymphoma Translocation 1 Protein, NF-kappa B metabolism, Neoplasm Proteins antagonists & inhibitors, Neoplasm Proteins genetics, Phenothiazines chemistry, Phenothiazines pharmacology, Piperidines, Protein-Tyrosine Kinases antagonists & inhibitors, Protein-Tyrosine Kinases genetics, Pyrazoles pharmacology, Pyrimidines pharmacology, Stereoisomerism, CD79 Antigens metabolism, Caspases metabolism, Mutation, Neoplasm Proteins metabolism, Protein-Tyrosine Kinases metabolism
- Abstract
Survival of activated B cell-subtype (ABC) of diffuse large B cell lymphoma (DLBCL) is driven by chronic B cell receptor (BCR) signaling that activates the canonical NF-κB pathway. Inhibition of BTK by Ibrutinib has been shown to kill ABC DLBCL cells that carry activating mutations in the BCR adaptor CD79. However, mutations in BTK or in downstream components such as CARMA1/CARD11 can render lymphomas Ibrutinib resistant. Therefore, we assessed here the simultaneous inhibition of BTK and the protease MALT1 that acts downstream of CARMA1 and is essential for ABC DLBCL tumor growth. We show that in CD79 mutant cells BTK is a crucial upstream regulator of MALT1, but dispensable in CARMA1 mutant ABC DLBCL. Combined inhibition of BTK by Ibrutinib and MALT1 by S-Mepazine additively impaired MALT1 cleavage activity and expression of NF-κB pro-survival factors. Thereby, combinatorial Ibrutinib and S-Mepazine treatment enhanced killing of CD79 mutant ABC DLBCL cells. Moreover, while expression of oncogenic CARMA1 in CD79 mutant cells conferred Ibrutinib resistance, double mutant cells were still sensitive to MALT1 inhibition by S-Mepazine. Thus, based on the genetic background combinatorial BTK and MALT1 inhibition may improve effectiveness of therapeutic treatment and reduce the chances for the development of drug resistances.
- Published
- 2015
- Full Text
- View/download PDF
24. Activity-based probes for detection of active MALT1 paracaspase in immune cells and lymphomas.
- Author
-
Eitelhuber AC, Vosyka O, Nagel D, Bognar M, Lenze D, Lammens K, Schlauderer F, Hlahla D, Hopfner KP, Lenz G, Hummel M, Verhelst SH, and Krappmann D
- Subjects
- Biotin chemistry, Blotting, Western, CARD Signaling Adaptor Proteins metabolism, Cell Line, Click Chemistry, Electrophoresis, Polyacrylamide Gel, Enzyme-Linked Immunosorbent Assay, Guanylate Cyclase metabolism, Humans, Jurkat Cells, Molecular Probes chemical synthesis, Mucosa-Associated Lymphoid Tissue Lymphoma Translocation 1 Protein, Neoplasm Proteins antagonists & inhibitors, RNA Interference, RNA, Small Interfering metabolism, Rhodamines chemistry, T-Lymphocytes cytology, T-Lymphocytes immunology, Caspases metabolism, Lymphoma, Large B-Cell, Diffuse enzymology, Lymphoma, Large B-Cell, Diffuse pathology, Molecular Probes chemistry, Neoplasm Proteins metabolism, T-Lymphocytes enzymology
- Abstract
MALT1 paracaspase is activated upon antigen receptor stimulation to promote lymphocyte activation. In addition, deregulated MALT1 protease activity drives survival of distinct lymphomas such as the activated B cell type of diffuse large B cell lymphoma (ABC-DLBCL). Here, we designed fluorophore or biotin-coupled activity based-probes (ABP) that covalently modify the active center of MALT1. MALT1-ABPs are exclusively labeling an active modified full length form of MALT1 upon T cell stimulation. Further, despite the CARMA1 requirement for initial MALT1 activation, the MALT1-ABPs show that protease activity is not confined to the high-molecular CARMA1-BCL10-MALT1 (CBM) complex. Using biotin-coupled ABPs, we developed a robust assay for sensitive and selective detection of active MALT1 in cell lines, primary lymphocytes, and DLBCL tumor biopsies. Taken together, MALT1-ABPs represent powerful chemical tools to measure cellular MALT1 activation, determine efficacy of small molecule inhibitors, and classify lymphomas based on MALT1 activity status., (Copyright © 2015 Elsevier Ltd. All rights reserved.)
- Published
- 2015
- Full Text
- View/download PDF
25. Chronic recurrent multifocal osteomyelitis associated with Crohn's disease.
- Author
-
Bognar M, Blake W, and Agudelo C
- Subjects
- Adult, Ankle Joint diagnostic imaging, Ankle Joint pathology, Female, Humans, Magnetic Resonance Imaging, Male, Middle Aged, Osteomyelitis diagnosis, Pain, Radionuclide Imaging, Recurrence, Technetium Tc 99m Medronate, Crohn Disease complications, Osteomyelitis complications, Osteomyelitis physiopathology
- Abstract
Chronic recurrent multifocal osteomyelitis (CRMO) was first described by Giedion in 1972 as a self-limited relapsing noninfectious inflammatory condition usually affecting children and adolescents. The association of CRMO with psoriasis, palmoplantar pustulosis, and SAPHO syndrome (synovitis, acne, pustulosis, hyperostosis, and osteitis) has been described. In this case report, we present a 49-year-old man with CRMO coexisting with Crohn's disease. To our knowledge, this is the first report of CRMO with Crohn's disease without the presence of pustular skin lesions or other features of SAPHO syndrome.
- Published
- 1998
- Full Text
- View/download PDF
26. Salicylate toxicity in the older patient.
- Author
-
Varela N, Bognar M, Agudelo C, and Jurado R
- Abstract
Nonacetylated salicylates are frequently used in the treatment of musculoskeletal complaints and pain management in older patients because of their possible lower gastrointestinal and renal toxicity as compared with other nonsteroidal anti-inflammatory agents. We report five patients with chronic salicylate intoxication seen at the Atlanta VA Medical Center. All charts of patients diagnosed with salicylate toxicity were reviewed, and cases with acute, intentional intoxication were excluded. In the study group, three patients took a nonacetylated salicylate, the other two took an acetylated salicylate. Our patients ranged in age from 51 to 78 years old. One patient died of respiratory failure and "sepsis-like syndrome," a potentially lethal complication of salicylate toxicity. Four of the patients had altered mental status as a presenting complaint. The presence of a combined respiratory alkalosis and metabolic acidosis, present in all five patients, was the clue for diagnosis in three of the cases. Tinnitus was reported in only one patient. A significantly decreased urate level and a wide anion gap were consistent findings as well. Two of the patients improved after hydration and discontinuation of use of the drug, two required alkalinization of the urine, and one required dialysis. Clinicians need to be more aware of the potential toxicity, including life-threatening complications, with the use of salicylates, particularly in high risk populations such as elderly patients and patients with multiple medical problems.
- Published
- 1998
- Full Text
- View/download PDF
27. Tamponade in patients undergoing cardiac surgery: a clinical-echocardiographic diagnosis.
- Author
-
Bommer WJ, Follette D, Pollock M, Arena F, Bognar M, and Berkoff H
- Subjects
- Adult, Aged, Aged, 80 and over, Cardiac Tamponade physiopathology, Coronary Artery Bypass, Female, Hemodynamics, Humans, Hypotension etiology, Hypotension physiopathology, Male, Middle Aged, Retrospective Studies, Sensitivity and Specificity, Cardiac Surgical Procedures, Cardiac Tamponade diagnostic imaging, Echocardiography, Doppler
- Abstract
The purpose of this study was to evaluate the sensitivity of current echocardiographic criteria in detecting cardiac tamponade in the patient who has undergone cardiovascular surgery. Because the current echocardiographic criteria for tamponade were initially developed and studied predominantly in patients with medical problems, relatively less information is available in patients who have undergone cardiac surgery. Of 848 consecutive patients who underwent cardiovascular surgery, patients were selected for the study if they had clinical or hemodynamic deterioration and had undergone an echocardiogram just before a successful pericardiocentesis or a surgical evacuation of pericardial blood or clot. The echocardiograms were evaluated for evidence of chamber collapse, cardiac motion, Doppler flow variations, and the location and width of pericardial separation. Fourteen patients were identified who met the inclusion criteria (clinical or hemodynamic deterioration, recent echocardiogram, and successful intervention) for cardiac tamponade. The clinical and hemodynamic findings were hypotension (13 patients), low cardiac output (7), low urine output (3), cardiopulmonary arrest (1), elevated central venous pressure (1), and shortness of breath (1). In these patients current echocardiographic criteria were seen infrequently: chamber collapse in the right atrium (6 of 14 patients) and right ventricle (4 of 14); Doppler flow variation (2 of 5); and swinging heart (0 of 15), whereas increased pericardial separation (> or = 10 mm) was seen in all (14 of 14) the patients.(ABSTRACT TRUNCATED AT 250 WORDS)
- Published
- 1995
- Full Text
- View/download PDF
Catalog
Discovery Service for Jio Institute Digital Library
For full access to our library's resources, please sign in.