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Perlaki G, Darnai G, Arató Á, Alhour HA, Szente A, Áfra E, Nagy SA, Horváth R, Kovács N, Dóczi T, Orsi G, Janszky J. Gray Matter Changes Following Mild COVID-19: An MR Morphometric Study in Healthy Young People. J Magn Reson Imaging 2023. [PMID: 37602529 DOI: 10.1002/jmri.28970] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2023] [Revised: 08/04/2023] [Accepted: 08/04/2023] [Indexed: 08/22/2023] Open
Abstract
BACKGROUND Although COVID-19 is primarily an acute respiratory infection, 5%-40% of patients develop late and prolonged symptoms with frequent neurological complaints, known as long COVID syndrome. The presentation of the disease suggests that COVID infection may cause functional and/or morphological central nervous system alterations, but studies published in the literature report contradictory findings. PURPOSE To investigate the chronic effects of COVID-19 on cerebral grey matter in a group of young patients without comorbidities, with mild course of COVID infection and no medical complaints at the time of examination. STUDY TYPE Prospective. POPULATION Thirty-eight young (age = 26.6 ± 5.0 years; male/female = 14/24), adult participants who recovered from mild COVID infection without a history of clinical long COVID and 37 healthy control subjects (age = 25.9 ± 2.8 years; male/female = 14/23). FIELD STRENGTH/SEQUENCE Three Tesla, 3D T1-weighted magnetization-prepared rapid gradient-echo, 2D T2-weighted turbo spin-echo. ASSESSMENT MRI-based morphometry and volumetry along with neuropsychological testing and self-assessed questionnaire. STATISTICAL TESTS Fisher's exact test, Mann-Whitney U-test, and multiple linear regression analyses were used to assess differences between COVID and healthy control groups. P < 0.05 was used as cutoff for significance. RESULTS In the COVID group, significantly lower bilateral mean cortical thickness (left/right-hemisphere: 2.51 ± 0.06 mm vs. 2.56 ± 0.07 mm, η2 p = 0.102/2.50 ± 0.06 mm vs. 2.54 ± 0.07 mm, η2 p = 0.101), lower subcortical gray matter (57881 ± 3998 mm3 vs. 60470 ± 5211 mm3 , η2 p = 0.100) and lower right olfactory bulb volume (52.28 ± 13.55 mm3 vs. 60.98 ± 15.8 mm3 , η2 p = 0.078) were found. In patients with moderate to severe anosmia, cortical thickness was significantly lower bilaterally, as compared to patients without olfactory function loss (left/right-hemisphere: 2.50 ± 0.06 mm vs. 2.56 ± 0.05 mm, η2 = 0.173/2.49 ± 0.06 mm vs. 2.55 ± 0.05 mm, η2 = 0.189). Using further exploratory analysis, significantly reduced cortical thickness was detected locally in the right lateral orbitofrontal cortex in the COVID group (2.53 ± 0.10 mm vs. 2.60 ± 0.09 mm, η2 p = 0.112). DATA CONCLUSION Even without any subjective or objective neurological complaints at the time of the MR scan, subjects in the COVID group showed gray matter alterations in cortical thickness and subcortical gray matter volume. LEVEL OF EVIDENCE 2 TECHNICAL EFFICACY: Stage 3.
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Affiliation(s)
- Gábor Perlaki
- Department of Neurology, Medical School, University of Pécs, Pécs, Hungary
- ELKH-PTE Clinical Neuroscience MR Research Group, Eötvös Loránd Research Network, Pécs, Hungary
- Pécs Diagnostic Centre, NeuroCT Ltd., Pécs, Hungary
| | - Gergely Darnai
- Department of Neurology, Medical School, University of Pécs, Pécs, Hungary
- ELKH-PTE Clinical Neuroscience MR Research Group, Eötvös Loránd Research Network, Pécs, Hungary
- Department of Behavioural Sciences, Medical School, University of Pécs, Pécs, Hungary
| | - Ákos Arató
- Department of Neurology, Medical School, University of Pécs, Pécs, Hungary
| | | | - Anna Szente
- Department of Neurology, Medical School, University of Pécs, Pécs, Hungary
| | - Eszter Áfra
- Department of Behavioural Sciences, Medical School, University of Pécs, Pécs, Hungary
| | - Szilvia Anett Nagy
- Department of Neurology, Medical School, University of Pécs, Pécs, Hungary
- ELKH-PTE Clinical Neuroscience MR Research Group, Eötvös Loránd Research Network, Pécs, Hungary
- Pécs Diagnostic Centre, NeuroCT Ltd., Pécs, Hungary
- Structural Neurobiology Research Group, Szentágothai Research Centre, University of Pecs, Pécs, Hungary
| | - Réka Horváth
- Department of Neurology, Medical School, University of Pécs, Pécs, Hungary
| | - Norbert Kovács
- Department of Neurology, Medical School, University of Pécs, Pécs, Hungary
| | - Tamás Dóczi
- Pécs Diagnostic Centre, NeuroCT Ltd., Pécs, Hungary
- Department of Neurosurgery, Medical School, University of Pécs, Pécs, Hungary
| | - Gergely Orsi
- Department of Neurology, Medical School, University of Pécs, Pécs, Hungary
- ELKH-PTE Clinical Neuroscience MR Research Group, Eötvös Loránd Research Network, Pécs, Hungary
- Pécs Diagnostic Centre, NeuroCT Ltd., Pécs, Hungary
- Department of Neurosurgery, Medical School, University of Pécs, Pécs, Hungary
| | - József Janszky
- Department of Neurology, Medical School, University of Pécs, Pécs, Hungary
- ELKH-PTE Clinical Neuroscience MR Research Group, Eötvös Loránd Research Network, Pécs, Hungary
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Darnai G, Perlaki G, Orsi G, Arató Á, Szente A, Horváth R, Áfra E, Nagy SA, Kovács N, Dóczi T, Janszky J. Language processing in Internet use disorder: Task-based fMRI study. PLoS One 2022; 17:e0269979. [PMID: 35749379 PMCID: PMC9231743 DOI: 10.1371/journal.pone.0269979] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2021] [Accepted: 06/01/2022] [Indexed: 11/19/2022] Open
Abstract
Internet use disorder (IUD) is generally conceptualized as a fast-growing behavioral addiction. Several structural and functional brain alterations have been revealed in this condition, but previous behavioral studies indicated that language systems may also be impaired. We used a silent word generation task to induce brain activation in Broca’s area and other parts of the language system. Blood-oxygen-level-dependent activation analysis and psychophysiological interaction analysis were applied to assess functional brain changes. IUD was measured by the Problematic Internet Use Questionnaire and two additional questions concerning usage time and subjective rating of addiction. According to our key findings, areas strongly related to the default mode network were altered in IUD during the task. Moreover, Broca’s area showed altered functional connectivity with other language network and occipital areas in IUD. These findings may address the neural background of decreased verbal fluency performance previously reported in the literature, and we emphasize that beside the brain’s reward and inhibitory control systems, the language system is the next candidate to be involved in the pathogenesis of IUD.
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Affiliation(s)
- Gergely Darnai
- Department of Behavioural Sciences, Medical School, University of Pécs, Pécs, Hungary
- Department of Neurology, Medical School, University of Pécs, Pécs, Hungary
- MTA-PTE Clinical Neuroscience MR Research Group, Pécs, Hungary
- * E-mail:
| | - Gábor Perlaki
- Department of Neurology, Medical School, University of Pécs, Pécs, Hungary
- MTA-PTE Clinical Neuroscience MR Research Group, Pécs, Hungary
- Pécs Diagnostic Centre, Pécs, Hungary
| | - Gergely Orsi
- MTA-PTE Clinical Neuroscience MR Research Group, Pécs, Hungary
- Pécs Diagnostic Centre, Pécs, Hungary
- Department of Neurosurgery, Medical School, University of Pécs, Pécs, Hungary
| | - Ákos Arató
- Department of Neurology, Medical School, University of Pécs, Pécs, Hungary
| | - Anna Szente
- Department of Neurology, Medical School, University of Pécs, Pécs, Hungary
| | - Réka Horváth
- Department of Neurology, Medical School, University of Pécs, Pécs, Hungary
| | - Eszter Áfra
- Department of Behavioural Sciences, Medical School, University of Pécs, Pécs, Hungary
| | - Szilvia Anett Nagy
- MTA-PTE Clinical Neuroscience MR Research Group, Pécs, Hungary
- Pécs Diagnostic Centre, Pécs, Hungary
- Department of Neurosurgery, Medical School, University of Pécs, Pécs, Hungary
- Neurobiology of Stress Research Group, Szentágothai Research Centre, University of Pécs, Pécs, Hungary
- Department of Laboratory Medicine, Medical School, University of Pécs, Pécs, Hungary
| | - Norbert Kovács
- Department of Neurology, Medical School, University of Pécs, Pécs, Hungary
- MTA-PTE Clinical Neuroscience MR Research Group, Pécs, Hungary
| | - Tamás Dóczi
- MTA-PTE Clinical Neuroscience MR Research Group, Pécs, Hungary
- Department of Neurosurgery, Medical School, University of Pécs, Pécs, Hungary
| | - József Janszky
- Department of Neurology, Medical School, University of Pécs, Pécs, Hungary
- MTA-PTE Clinical Neuroscience MR Research Group, Pécs, Hungary
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Jaksics E, Németh R, Farkas A, Horváth R, Dúzs D, Drozdik ÁA, Csányi B, Bidló G, Simon K, Tömösközi S. Comparative compositional and functional characterisation of rye varieties and novel industrial milling fractions. Int J Food Sci Technol 2022. [DOI: 10.1111/ijfs.15780] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Affiliation(s)
- Edina Jaksics
- Research Group of Cereal Science and Food Quality Department of Applied Biotechnology and Food Science Budapest University of Technology and Economics Műegyetem rkp.3. 1111 Budapest Hungary
| | - Renáta Németh
- Research Group of Cereal Science and Food Quality Department of Applied Biotechnology and Food Science Budapest University of Technology and Economics Műegyetem rkp.3. 1111 Budapest Hungary
| | - Alexandra Farkas
- Research Group of Cereal Science and Food Quality Department of Applied Biotechnology and Food Science Budapest University of Technology and Economics Műegyetem rkp.3. 1111 Budapest Hungary
| | - Réka Horváth
- Research Group of Cereal Science and Food Quality Department of Applied Biotechnology and Food Science Budapest University of Technology and Economics Műegyetem rkp.3. 1111 Budapest Hungary
| | - Dániel Dúzs
- Research Group of Cereal Science and Food Quality Department of Applied Biotechnology and Food Science Budapest University of Technology and Economics Műegyetem rkp.3. 1111 Budapest Hungary
| | - Álmos Attila Drozdik
- Research Group of Cereal Science and Food Quality Department of Applied Biotechnology and Food Science Budapest University of Technology and Economics Műegyetem rkp.3. 1111 Budapest Hungary
| | - Brigitta Csányi
- Research Group of Cereal Science and Food Quality Department of Applied Biotechnology and Food Science Budapest University of Technology and Economics Műegyetem rkp.3. 1111 Budapest Hungary
| | - Gábor Bidló
- First Pest Mill and Bakery Ltd. Malom köz 7 2170 Aszód Hungary
| | - Katalin Simon
- First Pest Mill and Bakery Ltd. Malom köz 7 2170 Aszód Hungary
| | - Sándor Tömösközi
- Research Group of Cereal Science and Food Quality Department of Applied Biotechnology and Food Science Budapest University of Technology and Economics Műegyetem rkp.3. 1111 Budapest Hungary
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Sóki N, Richter Z, Karádi K, Lőrincz K, Horváth R, Gyimesi C, Szekeres-Paraczky C, Horváth Z, Janszky J, Dóczi T, Seress L, Ábrahám H. Investigation of synapses in the cortical white matter in human temporal lobe epilepsy. Brain Res 2022; 1779:147787. [PMID: 35041843 DOI: 10.1016/j.brainres.2022.147787] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2021] [Revised: 12/27/2021] [Accepted: 01/10/2022] [Indexed: 11/02/2022]
Abstract
Temporal lobe epilepsy (TLE) is one of the most common focal pharmacotherapy-resistant epilepsy in adults. Previous studies have shown significantly higher numbers of neurons in the neocortical white matter in TLE patients than in controls. The aim of this work was to investigate whether white matter neurons are part of the neuronal circuitry. Therefore, we studied the distribution and density of synapses in surgically resected neocortical tissue of pharmacotherapy-resistant TLE patients. Neocortical white matter of temporal lobe from non-epileptic patients were used as controls. Synapses and neurons were visualized with immunohistochemistry using antibodies against synaptophysin and NeuN, respectively. The presence of synaptophysin in presynaptic terminals was verified by electron microscopy. Quantification of immunostaining was performed and the data of the patients' cognitive tests as well as clinical records were compared to the density of neurons and synapses. Synaptophysin density in the white matter of TLE patients was significantly higher than in controls. In TLE, a significant correlation was found between synaptophysin immunodensity and density of white matter neurons. Neuronal as well as synaptophysin density significantly correlated with scores of verbal memory of TLE patients. Neurosurgical outcome of TLE patients did not significantly correlate with histological data, although, higher neuronal and synaptophysin densities were observed in patients with favorable post-surgical outcome. Our results suggest that white matter neurons in TLE patients receive substantial synaptic input and indicate that white matter neurons may be integrated in epileptic neuronal networks responsible for the development or maintenance of seizures.
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Affiliation(s)
- Noémi Sóki
- Department of Medical Biology and Central Electron Microscopic Laboratory, University of Pécs Medical School Szigeti u. 12. Pécs, 7643, Hungary; Neuromorphology and Cellular Neurobiology Research Group, Center for Neuroscience, University of Pécs Ifjúság u. 20. Pécs, 7624, Hungary
| | - Zsófia Richter
- Department of Medical Biology and Central Electron Microscopic Laboratory, University of Pécs Medical School Szigeti u. 12. Pécs, 7643, Hungary
| | - Kázmér Karádi
- Department of Behavioral Sciences, University of Pécs Medical School Szigeti u. 12. Pécs, 7624, Hungary
| | - Katalin Lőrincz
- Department of Neurology, University of Pécs Medical School Rét u. 2. Pécs, 7623, Hungary
| | - Réka Horváth
- Department of Neurology, University of Pécs Medical School Rét u. 2. Pécs, 7623, Hungary
| | - Csilla Gyimesi
- Department of Neurology, University of Pécs Medical School Rét u. 2. Pécs, 7623, Hungary
| | - Cecília Szekeres-Paraczky
- Human Brain Research Laboratory, Institute of Experimental Medicine, ELKH Szigony u. 43. Budapest, 1083, Hungary
| | - Zsolt Horváth
- Department of Neurosurgery, University of Pécs Medical School Rét u. 2. Pécs, 7623, Hungary
| | - József Janszky
- Department of Neurology, University of Pécs Medical School Rét u. 2. Pécs, 7623, Hungary; MTA-PTE Clinical Neuroscience MR Research Group, Center for Neuroscience, University of Pécs Ifjúság u 20. Pécs, 7624, Hungary
| | - Tamás Dóczi
- Department of Neurosurgery, University of Pécs Medical School Rét u. 2. Pécs, 7623, Hungary; MTA-PTE Clinical Neuroscience MR Research Group, Center for Neuroscience, University of Pécs Ifjúság u 20. Pécs, 7624, Hungary
| | - László Seress
- Department of Medical Biology and Central Electron Microscopic Laboratory, University of Pécs Medical School Szigeti u. 12. Pécs, 7643, Hungary; Neuromorphology and Cellular Neurobiology Research Group, Center for Neuroscience, University of Pécs Ifjúság u. 20. Pécs, 7624, Hungary
| | - Hajnalka Ábrahám
- Department of Medical Biology and Central Electron Microscopic Laboratory, University of Pécs Medical School Szigeti u. 12. Pécs, 7643, Hungary; Neuromorphology and Cellular Neurobiology Research Group, Center for Neuroscience, University of Pécs Ifjúság u. 20. Pécs, 7624, Hungary.
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5
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Tóth M, Barsi P, Tóth Z, Borbély K, Lückl J, Emri M, Repa I, Janszky J, Dóczi T, Horváth Z, Halász P, Juhos V, Gyimesi C, Bóné B, Kuperczkó D, Horváth R, Nagy F, Kelemen A, Jordán Z, Újvári Á, Hagiwara K, Isnard J, Pál E, Fekésházy A, Fabó D, Vajda Z. The role of hybrid FDG-PET/MRI on decision-making in presurgical evaluation of drug-resistant epilepsy. BMC Neurol 2021; 21:363. [PMID: 34537017 PMCID: PMC8449490 DOI: 10.1186/s12883-021-02352-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2020] [Accepted: 08/12/2021] [Indexed: 11/10/2022] Open
Abstract
Background When MRI fails to detect a potentially epileptogenic lesion, the chance of a favorable outcome after epilepsy surgery becomes significantly lower (from 60 to 90% to 20–65%). Hybrid FDG-PET/MRI may provide additional information for identifying the epileptogenic zone. We aimed to investigate the possible effect of the introduction of hybrid FDG-PET/MRI into the algorithm of the decision-making in both lesional and non-lesional drug-resistant epileptic patients. Methods In a prospective study of patients suffering from drug-resistant focal epilepsy, 30 nonlesional and 30 lesional cases with discordant presurgical results were evaluated using hybrid FDG-PET/MRI. Results The hybrid imaging revealed morphological lesion in 18 patients and glucose hypometabolism in 29 patients within the nonlesional group. In the MRI positive group, 4 patients were found to be nonlesional, and in 9 patients at least one more epileptogenic lesion was discovered, while in another 17 cases the original lesion was confirmed by means of hybrid FDG-PET/MRI. As to the therapeutic decision-making, these results helped to indicate resective surgery instead of intracranial EEG (iEEG) monitoring in 2 cases, to avoid any further invasive diagnostic procedures in 7 patients, and to refer 21 patients for iEEG in the nonlesional group. Hybrid FDG-PET/MRI has also significantly changed the original therapeutic plans in the lesional group. Prior to the hybrid imaging, a resective surgery was considered in 3 patients, and iEEG was planned in 27 patients. However, 3 patients became eligible for resective surgery, 6 patients proved to be inoperable instead of iEEG, and 18 cases remained candidates for iEEG due to the hybrid FDG-PET/MRI. Two patients remained candidates for resective surgery and one patient became not eligible for any further invasive intervention. Conclusions The results of hybrid FDG-PET/MRI significantly altered the original plans in 19 of 60 cases. The introduction of hybrid FDG-PET/MRI into the presurgical evaluation process had a potential modifying effect on clinical decision-making. Trial registration Trial registry: Scientific Research Ethics Committee of the Medical Research Council of Hungary. Trial registration number: 008899/2016/OTIG. Date of registration: 08 February 2016.
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Affiliation(s)
- Márton Tóth
- Department of Neurology, Medical School, University of Pécs, Rét u. 2, Pécs, H-7623, Hungary.
| | - Péter Barsi
- Department of Medical Imaging, Semmelweis University, Balassa út 6, Budapest, H-1083, Hungary
| | - Zoltán Tóth
- Dr. József Baka Diagnostic, Radiation oncology, Research and Teaching Center, Somogy County Moritz Kaposi Teaching Hospital, Guba Sándor u. 40, Kaposvár, H-7400, Hungary.,MEDICOPUS Healthcare Provider and Public Nonprofit Ltd., Somogy County Moritz Kaposi Teaching Hospital, Guba Sándor u. 40, Kaposvár, H-7400, Hungary
| | - Katalin Borbély
- PET/CT Ambulance, National Institute of Oncology, Ráth György u.7-9, Budapest, H-1122, Hungary
| | - János Lückl
- Dr. József Baka Diagnostic, Radiation oncology, Research and Teaching Center, Somogy County Moritz Kaposi Teaching Hospital, Guba Sándor u. 40, Kaposvár, H-7400, Hungary
| | - Miklós Emri
- MEDICOPUS Healthcare Provider and Public Nonprofit Ltd., Somogy County Moritz Kaposi Teaching Hospital, Guba Sándor u. 40, Kaposvár, H-7400, Hungary.,Division of Nuclear Medicine and Translational Imaging, Department of Medical Imaging, Faculty of Medicine, University of Debrecen, Nagyerdei krt. 98, Debrecen, H-4032, Hungary
| | - Imre Repa
- Dr. József Baka Diagnostic, Radiation oncology, Research and Teaching Center, Somogy County Moritz Kaposi Teaching Hospital, Guba Sándor u. 40, Kaposvár, H-7400, Hungary
| | - József Janszky
- Department of Neurology, Medical School, University of Pécs, Rét u. 2, Pécs, H-7623, Hungary.,MTA-PTE Clinical Neuroscience MRI Research Group, Ifjúság u. 20, Pécs, H-7624, Hungary
| | - Tamás Dóczi
- MTA-PTE Clinical Neuroscience MRI Research Group, Ifjúság u. 20, Pécs, H-7624, Hungary.,Department of Neurosurgery, Medical School, University of Pécs, Rét u. 2, Pécs, H-7623, Hungary
| | - Zsolt Horváth
- Department of Neurosurgery, Medical School, University of Pécs, Rét u. 2, Pécs, H-7623, Hungary
| | - Péter Halász
- National Institute of Clinical Neurosciences, Amerikai út 57, Budapest, H-1145, Hungary
| | - Vera Juhos
- Epihope Non-Profit Kft, Szilágyi Erzsébet fasor 17-21, Budapest, 1026, Hungary
| | - Csilla Gyimesi
- Department of Neurology, Medical School, University of Pécs, Rét u. 2, Pécs, H-7623, Hungary
| | - Beáta Bóné
- Department of Neurology, Medical School, University of Pécs, Rét u. 2, Pécs, H-7623, Hungary
| | - Diána Kuperczkó
- Department of Neurology, Medical School, University of Pécs, Rét u. 2, Pécs, H-7623, Hungary
| | - Réka Horváth
- Department of Neurology, Medical School, University of Pécs, Rét u. 2, Pécs, H-7623, Hungary
| | - Ferenc Nagy
- Department of Neurology, Somogy County Moritz Kaposi Teaching Hospital, Sándor u. 40, Guba, H-7400, Hungary
| | - Anna Kelemen
- National Institute of Clinical Neurosciences, Amerikai út 57, Budapest, H-1145, Hungary
| | - Zsófia Jordán
- National Institute of Clinical Neurosciences, Amerikai út 57, Budapest, H-1145, Hungary
| | - Ákos Újvári
- National Institute of Clinical Neurosciences, Amerikai út 57, Budapest, H-1145, Hungary
| | - Koichi Hagiwara
- Epilepsy and Sleep Center, Fukuoka Sanno Hospital, 3-6-45, Momochihama, Sawara-ku, Fukuoka, 814-0001, Japan
| | - Jean Isnard
- Department of Functional Neurology and Epileptology, Hospices Civils de Lyon, Hospital for Neurology and Neurosurgery Pierre Wertheimer, 59 Boulevard Pinel, 69500, Lyon, France
| | - Endre Pál
- Department of Neurology, Medical School, University of Pécs, Rét u. 2, Pécs, H-7623, Hungary
| | - Attila Fekésházy
- Dr. József Baka Diagnostic, Radiation oncology, Research and Teaching Center, Somogy County Moritz Kaposi Teaching Hospital, Guba Sándor u. 40, Kaposvár, H-7400, Hungary.,MEDICOPUS Healthcare Provider and Public Nonprofit Ltd., Somogy County Moritz Kaposi Teaching Hospital, Guba Sándor u. 40, Kaposvár, H-7400, Hungary
| | - Dániel Fabó
- National Institute of Clinical Neurosciences, Amerikai út 57, Budapest, H-1145, Hungary
| | - Zsolt Vajda
- Dr. József Baka Diagnostic, Radiation oncology, Research and Teaching Center, Somogy County Moritz Kaposi Teaching Hospital, Guba Sándor u. 40, Kaposvár, H-7400, Hungary.,Department of Neurosurgery, Medical School, University of Pécs, Rét u. 2, Pécs, H-7623, Hungary
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6
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Fodor I, Zrinyi Z, Horváth R, Urbán P, Herczeg R, Büki G, Koene JM, Tsai PS, Pirger Z. Identification, presence, and possible multifunctional regulatory role of invertebrate gonadotropin-releasing hormone/corazonin molecule in the great pond snail (Lymnaea stagnalis). Gen Comp Endocrinol 2020; 299:113621. [PMID: 32966777 DOI: 10.1016/j.ygcen.2020.113621] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/19/2020] [Revised: 07/15/2020] [Accepted: 09/14/2020] [Indexed: 10/23/2022]
Abstract
In the last years, our interpretation of the origin and function of the gonadotropin-releasing hormone (GnRH) neuropeptide superfamily has changed substantially. A main driver for these conceptual changes came from increased investigations into functions and evolutionary lineage of previously identified molluscan GnRH molecules. Emerging evidence suggests not only reproductive, but also diverse biological effects of these molecules and proposes they should most likely be called corazonin (CRZ). Clearly, a more global understanding requires further exploration of species-specific functions and structure of invGnRH/CRZ peptides. Towards this goal, we have identified the full-length cDNA of invGnRH/CRZ peptide in an invertebrate model species, the great pond snail Lymnaea stagnalis, termed ly-GnRH/CRZ, and characterized the transcript and peptide distribution in the central nervous system (CNS) and peripheral organs. Our results are consistent with previous data that molluscan GnRHs are more related to CRZs and serve diverse functions. Hence, our findings support the notion that peptides originally termed molluscan GnRH are multifunctional modulators and that nomenclature change should be taken into consideration.
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Affiliation(s)
- István Fodor
- Adaptive Neuroethology Research Group, Department of Experimental Zoology, Balaton Limnological Institute, Centre for Ecological Research, 8237 Tihany, Hungary
| | - Zita Zrinyi
- Adaptive Neuroethology Research Group, Department of Experimental Zoology, Balaton Limnological Institute, Centre for Ecological Research, 8237 Tihany, Hungary
| | - Réka Horváth
- Adaptive Neuroethology Research Group, Department of Experimental Zoology, Balaton Limnological Institute, Centre for Ecological Research, 8237 Tihany, Hungary
| | - Péter Urbán
- Microbial Biotechnology Research Group, Szentágothai Research Centre, University of Pécs, 7624 Pécs, Hungary; Genomics and Bioinformatics Core Facilities, Szentágothai Research Centre, University of Pécs, 7624 Pécs, Hungary
| | - Róbert Herczeg
- Genomics and Bioinformatics Core Facilities, Szentágothai Research Centre, University of Pécs, 7624 Pécs, Hungary
| | - Gergely Büki
- Department of Medical Genetics, Medical School, University of Pécs, 7624 Pécs, Hungary
| | - Joris M Koene
- Department of Ecological Science, Faculty of Science, Vrije Universiteit, Amsterdam, the Netherlands
| | - Pei-San Tsai
- Department of Integrative Physiology and Center for Neuroscience, University of Colorado, Boulder, CO 80309-0354, United States
| | - Zsolt Pirger
- Adaptive Neuroethology Research Group, Department of Experimental Zoology, Balaton Limnological Institute, Centre for Ecological Research, 8237 Tihany, Hungary.
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7
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Somogyvári D, Vehovszky Á, Farkas A, Horváth R, Győri J. Multi-marker approach for the evaluation of environmental impacts of APACS 50WG on aquatic ecosystems. Invert Neurosci 2020; 20:23. [PMID: 33191441 PMCID: PMC7667133 DOI: 10.1007/s10158-020-00254-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/29/2020] [Accepted: 10/22/2020] [Indexed: 11/26/2022]
Abstract
Neonicotinoids are the most widely used synthetic insecticides in the world. These insecticides are widely distributed in the ecosystem, indicating that more attention should be paid to the potential risks regarding their use in agriculture. Due their intensive use, non-target species in the environment are also exposed to their putative effects. Within acute exposure trials, the time related effect of sublethal dose of the neonicotinoid preparation APACS 50 WG was investigated on swimming behaviour and the multi-xenobiotic resistance system (MXR) activity, as a first line defence pathway of adult Dikerogammarus villosus. Results showed that treated animals manifested an increased swimming activity. Exposed animals were monitored by the rhodamine B accumulation assay, and APACS 50 WG exerted distinct changes in the MXR activity as well. Our results suggested that application of neonicotinoid at a low concentration (3.9 ng/l) contributed to the activation of locomotor activity and at the same concentration range the transmembrane transport mechanisms was altered too.
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Affiliation(s)
- Dávid Somogyvári
- Department of Engineering, University of Pannonia, Veszprém, 8200, Hungary.
| | - Ágnes Vehovszky
- Department of Experimental Zoology, Balaton Limnological Institute, MTA Centre for Ecological Research, Tihany, 8237, Hungary
| | - Anna Farkas
- Department of Experimental Zoology, Balaton Limnological Institute, MTA Centre for Ecological Research, Tihany, 8237, Hungary
| | - Réka Horváth
- Department of Experimental Zoology, Balaton Limnological Institute, MTA Centre for Ecological Research, Tihany, 8237, Hungary
| | - János Győri
- Department of Experimental Zoology, Balaton Limnological Institute, MTA Centre for Ecological Research, Tihany, 8237, Hungary
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8
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Horváth R, Battonyai I, Maász G, Schmidt J, Fekete ZN, Elekes K. Chemical-neuroanatomical organization of peripheral sensory-efferent systems in the pond snail (Lymnaea stagnalis). Brain Struct Funct 2020; 225:2563-2575. [PMID: 32951073 PMCID: PMC7544616 DOI: 10.1007/s00429-020-02145-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2020] [Accepted: 09/08/2020] [Indexed: 12/23/2022]
Abstract
Perception and processing of chemical cues are crucial for aquatic gastropods, for proper elaboration of adaptive behavior. The pond snail, Lymnaea stagnalis, is a model species of invertebrate neurobiology, in which peripheral sensory neurons with different morphology and transmitter content have partly been described, but we have little knowledge regarding their functional morphological organization, including their possible peripheral intercellular connections and networks. Therefore the aim of our study was to characterize the sensory system of the tentacles and the lip, as primary sensory regions, and the anterior foot of Lymnaea with special attention to the transmitter content of the sensory neurons, and their relationship to extrinsic elements of the central nervous system. Numerous bipolar sensory cells were demonstrated in the epithelial layer of the peripheral organs, displaying immunoreactivity to antibodies raised against tyrosine hydroxylase, histamine, glutamate and two molluscan type oligopeptides, FMRFamide and Mytilus inhibitory peptide. A subepithelial plexus was formed by extrinsic serotonin and FMRFamide immunoreactive fibers, whereas in deeper regions axon processess of different origin with various immunoreactivities formed networks, too. HPLC-MS assay confirmed the presence of the low molecular weight signal molecules in the three examined areas. Following double-labeling immunohistochemistry, close arrangements were observed, formed by sensory neurons and extrinsic serotonergic (and FMRFamidergic) fibers at axo-dendritic, axo-somatic and axo-axonic levels. Our results suggest the involvement of a much wider repertoire of signal molecules in peripheral sensory processes of Lymnaea, which can locally be modified by central input, hence influencing directly the responses to environmental cues.
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Affiliation(s)
- Réka Horváth
- Department of Experimental Zoology, Centre for Ecological Research, Balaton Limnological Institute, 8237, Tihany, Hungary.
| | - Izabella Battonyai
- Department of Experimental Zoology, Centre for Ecological Research, Balaton Limnological Institute, 8237, Tihany, Hungary
| | - Gábor Maász
- Department of Experimental Zoology, Centre for Ecological Research, Balaton Limnological Institute, 8237, Tihany, Hungary
| | - János Schmidt
- Department of Analytical Biochemistry, Institute of Biochemistry and Medical Chemistry, University of Pécs, 7624, Pécs, Hungary
| | - Zsuzsanna N Fekete
- Department of Experimental Zoology, Centre for Ecological Research, Balaton Limnological Institute, 8237, Tihany, Hungary
| | - Károly Elekes
- Department of Experimental Zoology, Centre for Ecological Research, Balaton Limnological Institute, 8237, Tihany, Hungary
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9
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Janszky J, Bóné B, Horváth R, Sütő Z, Szapáry L, Juhos V, Komoly S, Kovács N. Status epilepticus 2020. Orv Hetil 2020; 161:1779-1786. [PMID: 33070121 DOI: 10.1556/650.2020.31908] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2020] [Accepted: 05/25/2020] [Indexed: 11/19/2022]
Abstract
Status epilepticus is the second most common neurological emergency with 15‒25% mortality rate. The principle of “time is brain” is also true for the treatment of status epilepticus: the earlier we start an adequate treatment, the more likely we are to stop progression. With treatment protocols based on high-level evidence, the progression of status epilepticus can be prevented in 75–90% of cases: we can avoid the induced coma or death. At the beginning of status epilepticus, parenteral benzodiazepine should be given immediately: intramuscular midazolam (0.2 mg/kg, max. 10 mg). In the case of easy veinous access, benzodiazepines can also be given intravenously. If the first benzodiazepine bolus does not stop the status epilepticus, we speak about established (benzodiazepine refractory) status epilepticus. In this case, a fast-acting non-benzodiazepine antiepileptic drug should be given: intravenous valproate (40 mg/kg, max. 3000 mg, within 10 minutes) or levetiracetam (60 mg/kg, max. 4500 mg, within 10 minutes). Refractory status epilepticus that persists for more than 1 hour and does not respond to either benzodiazepines or antiepileptics should be treated with general anesthesia (full narcosis). Induced coma can be achieved with fast-acting anesthetics, a combination of propofol with midazolam is the most frequently used one. Orv Hetil. 2020; 161(42): 1779–1786.
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Affiliation(s)
- József Janszky
- 1 Általános Orvostudományi Kar, Neurológiai Klinika, Pécsi Tudományegyetem, Pécs, Rét u. 2., 7623.,2 MTA-PTE Klinikai Idegtudományi Képalkotó Kutatócsoport, Pécs
| | - Beáta Bóné
- 1 Általános Orvostudományi Kar, Neurológiai Klinika, Pécsi Tudományegyetem, Pécs, Rét u. 2., 7623
| | - Réka Horváth
- 1 Általános Orvostudományi Kar, Neurológiai Klinika, Pécsi Tudományegyetem, Pécs, Rét u. 2., 7623
| | - Zsófia Sütő
- 1 Általános Orvostudományi Kar, Neurológiai Klinika, Pécsi Tudományegyetem, Pécs, Rét u. 2., 7623
| | - László Szapáry
- 1 Általános Orvostudományi Kar, Neurológiai Klinika, Pécsi Tudományegyetem, Pécs, Rét u. 2., 7623
| | | | - Sámuel Komoly
- 1 Általános Orvostudományi Kar, Neurológiai Klinika, Pécsi Tudományegyetem, Pécs, Rét u. 2., 7623.,2 MTA-PTE Klinikai Idegtudományi Képalkotó Kutatócsoport, Pécs
| | - Norbert Kovács
- 1 Általános Orvostudományi Kar, Neurológiai Klinika, Pécsi Tudományegyetem, Pécs, Rét u. 2., 7623.,2 MTA-PTE Klinikai Idegtudományi Képalkotó Kutatócsoport, Pécs
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10
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Boehncke WH, Horváth R, Dalkiliç E, Lima SAL, Okada M, Hojnik M, Ganz F, Lubrano E. Association between clinical specialty setting and disease management in patients with psoriatic arthritis: results from LOOP, a cross-sectional, multi-country, observational study. J Eur Acad Dermatol Venereol 2020; 34:2035-2043. [PMID: 32003056 DOI: 10.1111/jdv.16251] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2019] [Accepted: 12/30/2019] [Indexed: 12/30/2022]
Abstract
BACKGROUND Psoriatic arthritis (PsA) is a chronic and debilitating disease that can be managed by different clinical specialists. OBJECTIVES The objective of the LOOP study was to evaluate the impact of clinical specialty setting on the time to diagnosis and treatment of patients with PsA. Clinical disease activity and disease burden were also compared between clinical settings. METHODS LOOP was a cross-sectional, multicentre, observational study conducted in 17 countries in Western and Eastern Europe, the Middle East, Latin America and Asia. Adult patients (≥18 years) with a suspected or established diagnosis of PsA who were routinely visiting a rheumatologist, dermatologist or non-rheumatology/non-dermatology physician were enrolled. All patients were assessed by both a rheumatologist and a dermatologist. RESULTS Of 1483 enrolled patients, a total of 1273 had a confirmed diagnosis of PsA. There was no significant difference in the median time from onset of inflammatory musculoskeletal symptoms to PsA diagnosis between patients enrolled by rheumatologists and dermatologists (6.0 vs. 3.9 months). However, the median time from diagnosis to first treatment with a conventional synthetic disease-modifying anti-rheumatic drug (csDMARD) was significantly shorter in the rheumatology setting compared with the dermatology setting (0 vs. 2.0 months; P < 0.001). In addition, disease activity was significantly higher in the dermatology setting compared with the rheumatology setting. CONCLUSIONS Differences in the management and clinical status of patients with PsA were observed between the rheumatology and dermatology settings. Importantly, median time from diagnosis to first csDMARD was significantly shorter in the rheumatology setting, and patients in the dermatology setting had higher disease activity. These data show the importance of improved collaboration between rheumatologists and dermatologists.
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Affiliation(s)
- W H Boehncke
- Division of Dermatology and Venereology, Geneva University Hospitals, Geneva, Switzerland.,Department of Pathology and Immunology, Faculty of Medicine, University of Geneva, Geneva, Switzerland
| | - R Horváth
- Department of Paediatric and Adult Rheumatology, University Hospital Motol, Prague, Czech Republic
| | - E Dalkiliç
- Department of Rheumatology, Uludağ University School of Medicine, Gorukle, Bursa, Turkey
| | - S A L Lima
- Department of Clinical Medicine, Rheumatology, ABC Medical School, Santo André, Brazil
| | - M Okada
- Immuno-Rheumatology Center, St. Luke's International Hospital, Tokyo, Japan
| | - M Hojnik
- Formerly AbbVie, Ljubljana, Slovenia
| | - F Ganz
- AbbVie AG, Baar, Switzerland
| | - E Lubrano
- Department of Medicine and Health Sciences Vincenzo Tiberio, University of Molise, Campobasso, Italy
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11
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Darnai G, Perlaki G, Zsidó AN, Inhóf O, Orsi G, Horváth R, Nagy SA, Lábadi B, Tényi D, Kovács N, Dóczi T, Demetrovics Z, Janszky J. Internet addiction and functional brain networks: task-related fMRI study. Sci Rep 2019; 9:15777. [PMID: 31673061 PMCID: PMC6823489 DOI: 10.1038/s41598-019-52296-1] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2019] [Accepted: 10/11/2019] [Indexed: 12/14/2022] Open
Abstract
A common brain-related feature of addictions is the altered function of higher-order brain networks. Growing evidence suggests that Internet-related addictions are also associated with breakdown of functional brain networks. Taking into consideration the limited number of studies used in previous studies in Internet addiction (IA), our aim was to investigate the functional correlates of IA in the default mode network (DMN) and in the inhibitory control network (ICN). To observe these relationships, task-related fMRI responses to verbal Stroop and non-verbal Stroop-like tasks were measured in 60 healthy university students. The Problematic Internet Use Questionnaire (PIUQ) was used to assess IA. We found significant deactivations in areas related to the DMN (precuneus, posterior cingulate gyrus) and these areas were negatively correlated with PIUQ during incongruent stimuli. In Stroop task the incongruent_minus_congruent contrast showed positive correlation with PIUQ in areas related to the ICN (left inferior frontal gyrus, left frontal pole, left central opercular, left frontal opercular, left frontal orbital and left insular cortex). Altered DMN might explain some comorbid symptoms and might predict treatment outcomes, while altered ICN may be the reason for having difficulties in stopping and controlling overuse.
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Affiliation(s)
- Gergely Darnai
- Institute of Psychology, University of Pécs, Pécs, Hungary. .,Department of Neurology, University of Pécs, Medical School, Pécs, Hungary. .,MTA-PTE Clinical Neuroscience MR Research Group, Pécs, Hungary.
| | - Gábor Perlaki
- MTA-PTE Clinical Neuroscience MR Research Group, Pécs, Hungary.,Pécs Diagnostic Centre, Pécs, Hungary.,Department of Neurosurgery, University of Pécs, Medical School, Pécs, Hungary
| | - András N Zsidó
- Institute of Psychology, University of Pécs, Pécs, Hungary
| | - Orsolya Inhóf
- Institute of Psychology, University of Pécs, Pécs, Hungary
| | - Gergely Orsi
- MTA-PTE Clinical Neuroscience MR Research Group, Pécs, Hungary.,Pécs Diagnostic Centre, Pécs, Hungary.,Department of Neurosurgery, University of Pécs, Medical School, Pécs, Hungary
| | - Réka Horváth
- Department of Neurology, University of Pécs, Medical School, Pécs, Hungary
| | - Szilvia Anett Nagy
- MTA-PTE Clinical Neuroscience MR Research Group, Pécs, Hungary.,Pécs Diagnostic Centre, Pécs, Hungary.,Department of Neurosurgery, University of Pécs, Medical School, Pécs, Hungary.,MTA-PTE Stress Neurobiology Research Group, Pécs, Hungary
| | - Beatrix Lábadi
- Institute of Psychology, University of Pécs, Pécs, Hungary
| | - Dalma Tényi
- Department of Neurology, University of Pécs, Medical School, Pécs, Hungary
| | - Norbert Kovács
- Department of Neurology, University of Pécs, Medical School, Pécs, Hungary.,MTA-PTE Clinical Neuroscience MR Research Group, Pécs, Hungary
| | - Tamás Dóczi
- MTA-PTE Clinical Neuroscience MR Research Group, Pécs, Hungary.,Department of Neurosurgery, University of Pécs, Medical School, Pécs, Hungary
| | - Zsolt Demetrovics
- Institute of Psychology, Eötvös Loránd University, Budapest, Hungary
| | - József Janszky
- Department of Neurology, University of Pécs, Medical School, Pécs, Hungary.,MTA-PTE Clinical Neuroscience MR Research Group, Pécs, Hungary
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12
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Vehovszky Á, Horváth R, Farkas A, Győri J, Elekes K. The allelochemical tannic acid affects the locomotion and feeding behaviour of the pond snail, Lymnaea stagnalis, by inhibiting peripheral pathways. Invert Neurosci 2019; 19:10. [PMID: 31435741 PMCID: PMC6704085 DOI: 10.1007/s10158-019-0229-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/10/2019] [Accepted: 07/22/2019] [Indexed: 01/09/2023]
Abstract
(1) The effect of tannic acid (TA), a dominant component of plant allelochemicals, was investigated on the locomotion and feeding of the pond snail, Lymnaea stagnalis. The effect of TA on the neuronal background underlying feeding activity was also analysed. (2) TA affected the spontaneous locomotion and of juvenile snails in a concentration-dependent way. Low (10 μM) TA concentration resulted in an increased (sliding or swimming) activity compared to the control; meanwhile, high (100 μM) TA concentration inhibited the locomotion of the animals. (3) Low (10 μM) TA concentration increased the frequency of sucrose-evoked feeding of intact animals, whereas high (100 μM) TA concentration resulted in significantly longer feeding latency and decreased feeding rate. The feeding changes proved to be partially irreversible, since after 48 h maintained in clear water, the animals tested in 100 μM TA previously still showed lower feeding rate in sucrose. (4) Electrophysiological experiments on semi-intact preparations showed that application of 100 μM TA to the lip area inhibited the fictive feeding pattern of central neurons, the cellular response to sucrose. (5) On isolated CNS preparation, 100 μM TA applied in the bathing solution, however, failed to inhibit the activation of the central feeding (CPG) interneurons following application of extracellular dopamine. Our results suggest that TA affects both afferent and efferent peripheral functions in Lymnaea. TA reduces feeding activity by primarily blocking feeding sensory pathways, and its negative effect on locomotion may imply sensory pathways and/or ciliary activity.
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Affiliation(s)
- Ágnes Vehovszky
- MTA Centre for Ecological Research, Balaton Limnological Institute, Tihany, 8237, Hungary.
| | - Réka Horváth
- MTA Centre for Ecological Research, Balaton Limnological Institute, Tihany, 8237, Hungary
| | - Anna Farkas
- MTA Centre for Ecological Research, Balaton Limnological Institute, Tihany, 8237, Hungary
| | - János Győri
- MTA Centre for Ecological Research, Balaton Limnological Institute, Tihany, 8237, Hungary
| | - Károly Elekes
- MTA Centre for Ecological Research, Balaton Limnological Institute, Tihany, 8237, Hungary
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13
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Fakan B, Baranyi E, Horváth R, Kálmán E, Kulka J, Tölgyesi K, Török M, Udvarhelyi N, Zombori T, Cserni G. [Evaluation of resection margins following breast conserving surgery for breast cancer. A multicentric retrospective study]. Orv Hetil 2019; 160:1036-1044. [PMID: 31230468 DOI: 10.1556/650.2019.31449] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Introduction: Breast conserving surgery for breast cancer requires the analysis of surgical margins. If the tumor is not removed completely, additional treatments (reoperation, boost irradiation) are generally recommended. Aim: To analyze the information content of histopathology reports on surgical margins in consecutive cases of breast conservation for invasive female breast cancer, to evaluate the frequency of incompletely removed tumors and to estimate the rate of further treatments after incomplete removal. Method: Analysis of margin related data of consecutive histopathology reports from 8 Hungarian pathology units with locoregional treatment related data in case of unsafe margins. Results: 386 reports were analyzed after exclusions. 200 and 32 cases were identified as having unsafe margins according to the previous (<5 mm) and the new (0 mm) definition of unclear margin, respectively. Unsafe margins were more common with lobular carcinomas. Specimens with clear margins weighed more. Reoperations for unsafe margins were performed in 43/180 and 12/22 cases according to the previous and the new definitions, respectively. Only 75/137 patients without reoperation received boost irradiation of the tumor bed; information on boost radiotherapy was often missing. Residual cancer was identified in 15/43 reoperated patients, of whom 9 had >0 mm margin distance. Conclusions: Some pathology reports lack information on surgical margins. Unsafe margin rates decreased with the new definition. Residual cancer may be left behind in case of clear margins with no ink on tumor. Neither reoperation, nor boost radiotherapy is given to some patients with unclear surgical margins. Orv Hetil. 2019; 160(26): 1036-1044.
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Affiliation(s)
- Bernadett Fakan
- Neurológiai és Stroke Osztály, Bács-Kiskun Megyei Kórház Kecskemét, Nyíri út 38., 6000
| | - Eszter Baranyi
- Szegedi Tudományegyetem, Általános Orvostudományi Kar Szeged
| | - Réka Horváth
- Patológiai Osztály, Flór Ferenc Kórház Kistarcsa
| | - Endre Kálmán
- Patológiai Intézet, Pécsi Tudományegyetem, Általános Orvostudományi Kar Pécs
| | - Janina Kulka
- II. Patológiai Intézet, Semmelweis Egyetem, Általános Orvostudományi Kar Budapest
| | - Katalin Tölgyesi
- Patológiai Osztály, Szabolcs-Szatmár-Bereg Megyei Kórházak és Egyetemi Oktatókórház - Jósa András Oktatókórház Nyíregyháza
| | - Miklós Török
- Patológiai Osztály, Debreceni Egyetem Kenézy Gyula Egyetemi Kórház Debrecen
| | - Nóra Udvarhelyi
- Daganatpatológiai Központ, Sebészeti és Molekuláris Patológiai Osztály, Országos Onkológiai Intézet Budapest
| | - Tamás Zombori
- Patológiai Intézet, Szegedi Tudományegyetem, Általános Orvostudományi Kar Szeged
| | - Gábor Cserni
- Patológiai Intézet, Szegedi Tudományegyetem, Általános Orvostudományi Kar Szeged.,Patológiai Osztály, Bács-Kiskun Megyei Kórház Kecskemét
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14
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Lőrincz KN, Bóné B, Tóth M, Horváth R, Kovács N, Komoly S, Karádi K, Barsi P, Ábrahám H, Seress L, Horváth Z, Dóczi T, Janszky J, Gyimesi C. [Postoperative outcome of surgical interventions for epilepsy between 2005 and 2016 at the Epilepsy Center of Pécs]. Orv Hetil 2019; 160:270-278. [PMID: 30741003 DOI: 10.1556/650.2019.31321] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
INTRODUCTION Epilepsy as a chronic, severe neurologic disease significantly influences the quality of life of the epileptic patients. In candidates well selected for surgery, the seizure freedom is realistically achievable, and the quality of life can be further improved with complex individual rehabilitation. AIM We aimed to evaluate the postoperative outcome of patients who underwent epilepsy surgery between 2005 and 2016 at the Epilepsy Center at Pécs. METHOD We evaluated seizure status at regular follow-up visits after surgery and the quality of life using questionnaires focusing on employment and social status. RESULTS 76% of the 72 patients who underwent surgical resection for epilepsy were free from disabling seizures , and 10% had rare disabling seizures (almost seizure-free), 7% experienced worthwhile improvement and 7% had no worthwhile improvement. Comparing the employment status of patients free from disabling seizures to patients not free from disabling seizures, we found that the employment status is significantly influenced by seizure freedom (p<0.01, Fisher's exact test). While 67% of seizure-free patients were employed, only 19% of patients not free from disabling seizures were hired. CONCLUSION Our results resemble the international tendencies and success rate, proving epilepsy surgery as an available, valid and effective treatment in well selected patients. Orv Hetil. 2019; 160(7): 270-278.
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Affiliation(s)
- Katalin Nóra Lőrincz
- Neurológiai Klinika, Pécsi Tudományegyetem, Általános Orvostudományi Kar Pécs, Rét u. 2., 7623
| | - Beáta Bóné
- Neurológiai Klinika, Pécsi Tudományegyetem, Általános Orvostudományi Kar Pécs, Rét u. 2., 7623
| | - Márton Tóth
- Neurológiai Klinika, Pécsi Tudományegyetem, Általános Orvostudományi Kar Pécs, Rét u. 2., 7623
| | - Réka Horváth
- Neurológiai Klinika, Pécsi Tudományegyetem, Általános Orvostudományi Kar Pécs, Rét u. 2., 7623
| | - Norbert Kovács
- Neurológiai Klinika, Pécsi Tudományegyetem, Általános Orvostudományi Kar Pécs, Rét u. 2., 7623.,Klinikai Idegtudományi Képalkotó Kutatócsoport, PTE-MTA Pécs
| | - Sámuel Komoly
- Neurológiai Klinika, Pécsi Tudományegyetem, Általános Orvostudományi Kar Pécs, Rét u. 2., 7623.,Klinikai Idegtudományi Képalkotó Kutatócsoport, PTE-MTA Pécs
| | - Kázmér Karádi
- Magatartástudományi Intézet, Pécsi Tudományegyetem, Általános Orvostudományi Kar Pécs
| | - Péter Barsi
- MR Kutatóközpont, Semmelweis Egyetem, Általános Orvostudományi Kar Budapest.,Pécsi Diagnosztikai Központ Pécs
| | - Hajnalka Ábrahám
- Orvosi Biológiai Intézet és Központi Elektronmikroszkópos Laboratórium, Pécsi Tudományegyetem, Általános Orvostudományi Kar Pécs
| | - László Seress
- Orvosi Biológiai Intézet és Központi Elektronmikroszkópos Laboratórium, Pécsi Tudományegyetem, Általános Orvostudományi Kar Pécs
| | - Zsolt Horváth
- Idegsebészeti Klinika, Pécsi Tudományegyetem, Általános Orvostudományi Kar Pécs
| | - Tamás Dóczi
- Idegsebészeti Klinika, Pécsi Tudományegyetem, Általános Orvostudományi Kar Pécs.,Pécsi Diagnosztikai Központ Pécs.,Klinikai Idegtudományi Képalkotó Kutatócsoport, PTE-MTA Pécs
| | - József Janszky
- Neurológiai Klinika, Pécsi Tudományegyetem, Általános Orvostudományi Kar Pécs, Rét u. 2., 7623.,Klinikai Idegtudományi Képalkotó Kutatócsoport, PTE-MTA Pécs
| | - Csilla Gyimesi
- Neurológiai Klinika, Pécsi Tudományegyetem, Általános Orvostudományi Kar Pécs, Rét u. 2., 7623
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15
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Tényi D, Bóné B, Horváth R, Komoly S, Illés Z, Beier CP, Kelemen A, Kovács N, Darnai G, Janszky J. Ictal piloerection is associated with high-grade glioma and autoimmune encephalitis-Results from a systematic review. Seizure 2018; 64:1-5. [PMID: 30497014 DOI: 10.1016/j.seizure.2018.11.009] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2018] [Revised: 11/15/2018] [Accepted: 11/18/2018] [Indexed: 11/16/2022] Open
Abstract
PURPOSE To comprehensively analyze ictal piloerection (IP) in a large number of subjects. METHODS We performed a systematic review on case report studies of patients diagnosed with IP (1929-2017) with additional cases included from the Department of Neurology of University of Pécs, the National Institute of Clinical Neurosciences, and Odense University Hospital. Each included case was characterized regarding patient history, IP seizure characteristics, diagnostic work-up, and therapy. Comparative analyses were also carried out based on sex and pathology. RESULTS Altogether, 109 cases were included. We observed a strong male predominance (p < 0.001). The mean age at onset of epilepsy was 39.5 ± 20.7 years (median: 38, IQR:24-57). The seizure onset zone was temporal (p < 0.001), and was lateralized to the ipsilateral hemisphere in unilateral localization (p = 0.001). The seizure was accompanied by cold shiver in 53%, and by other autonomic symptoms in 47% of cases. In 53% of patients, IP never progressed into complex partial or generalized tonic-clonic seizure; 16% of the patients reported occasional, and 31% regular generalization. Seizure frequency was higher among females (median:25/day, IQR:3-60) than among males (median:3/day, IQR:1-11) (p = 0.017). The two most common underlying pathologies were limbic encephalitis (23%) and astrocytoma (23%, among them 64% WHO III-IV astrocytoma). CONCLUSION IP was particularly associated with autoimmune encephalitis and high-grade glioma, suggesting IP's particular clinical importance in directing diagnostic work-up.
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Affiliation(s)
- Dalma Tényi
- Department of Neurology, University of Pécs, H-7623, Rét u. 2., Pécs, Hungary
| | - Beáta Bóné
- Department of Neurology, University of Pécs, H-7623, Rét u. 2., Pécs, Hungary
| | - Réka Horváth
- Department of Neurology, University of Pécs, H-7623, Rét u. 2., Pécs, Hungary
| | - Sámuel Komoly
- Department of Neurology, University of Pécs, H-7623, Rét u. 2., Pécs, Hungary
| | - Zsolt Illés
- Department of Neurology, University of Pécs, H-7623, Rét u. 2., Pécs, Hungary; Department of Neurology, Odense University Hospital, Odense, and Department for Clinical Research, University of Southern Denmark, Odense C, DK-5000, Winsløwparken 19, Denmark
| | - Christoph P Beier
- Department of Neurology, Odense University Hospital, Odense, and Department for Clinical Research, University of Southern Denmark, Odense C, DK-5000, Winsløwparken 19, Denmark
| | - Anna Kelemen
- National Institute of Clinical Neurosciences, H-1145, Amerikai út 57, Budapest, Hungary
| | - Norbert Kovács
- Department of Neurology, University of Pécs, H-7623, Rét u. 2., Pécs, Hungary; PTE-MTA Clinical Neuroscience MR Research Group, H-7623, Rét u. 2, Hungary
| | - Gergely Darnai
- Department of Neurology, University of Pécs, H-7623, Rét u. 2., Pécs, Hungary
| | - József Janszky
- Department of Neurology, University of Pécs, H-7623, Rét u. 2., Pécs, Hungary; PTE-MTA Clinical Neuroscience MR Research Group, H-7623, Rét u. 2, Hungary.
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16
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Elekes K, Hiripi L, Balog G, Maász G, Battonyai I, Khabarova MY, Horváth R, Voronezhskaya EE. Serotonergic regulation of the buccal (feeding) rhythm of the pond snail, Lymnaea stagnalis. An immunocytochemical, biochemical and pharmacological approach. Acta Biol Hung 2018; 69:225-243. [PMID: 30257576 DOI: 10.1556/018.68.2018.3.1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Hatching is an important phase of the development of pulmonate gastropods followed by the adult-like extracapsular foraging life. Right before hatching the juveniles start to display a rhythmic radula movement, executed by the buccal complex, consisting of the buccal musculature (mass) and a pair of the buccal ganglia. In order to have a detailed insight into this process, we investigated the serotonergic regulation of the buccal (feeding) rhythm in 100% stage embryos of the pond snail, Lymnaea stagnalis, applying quantitative immunohistochemistry combined with the pharmacological manipulation of the serotonin (5-HT) synthesis, by either stimulating (by the 5-HT precursor 5-hydroxytryptophan, 5-HTP) or inhibiting (by the 5-HT synthesis blocker para-chlorophenylalanine, pCPA) it. Corresponding to the direction of the drug effect, significant changes of the fluorescence intensity could be detected both in the cerebral ganglia and the buccal complex. HPLC-MS assay demonstrated that 5-HTP increased meanwhile pCPA decreased the 5-HT content both of the central ganglia and the buccal complex. As to the feeding activity, 5-HTP induced only a slight (20%) increase, whereas the pCPA resulted in a 20% decrease of the radula protrusion frequency. Inhibition of 5-HT re-uptake by clomipramine reduced the frequency by 75%. The results prove the role of both central and peripheral 5-HTergic processes in the regulation of feeding activity. Application of specific receptor agonists and antagonists revealed that activation of a 5-HT1-like receptor depressed the feeding activity, meanwhile activation of a 5-HT6,7-like receptor enhanced it. Saturation binding plot of [3H]-5-HT to receptor and binding experiments performed on membrane pellets prepared from the buccal mass indicated the presence of a 5-HT6-like receptor positively coupled to cAMP. The results suggest that 5-HT influences the buccal (feeding) rhythmic activity in two ways: an inhibitory action is probably exerted via 5-HT1-like receptors, while an excitatory action is realized through 5-HT6,7-like receptors.
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Affiliation(s)
- Károly Elekes
- Department of Experimental Zoology, Balaton Limnological Institute, MTA Centre for Ecological Research, Hungarian Academy of Sciences, H-8237 Tihany, Hungary
| | - László Hiripi
- Department of Experimental Zoology, Balaton Limnological Institute, MTA Centre for Ecological Research, Hungarian Academy of Sciences, H-8237 Tihany, Hungary
| | - Gábor Balog
- Department of Experimental Zoology, Balaton Limnological Institute, MTA Centre for Ecological Research, Hungarian Academy of Sciences, H-8237 Tihany, Hungary
| | - Gábor Maász
- Department of Experimental Zoology, Balaton Limnological Institute, MTA Centre for Ecological Research, Hungarian Academy of Sciences, H-8237 Tihany, Hungary
| | - Izabella Battonyai
- Department of Experimental Zoology, Balaton Limnological Institute, MTA Centre for Ecological Research, Hungarian Academy of Sciences, H-8237 Tihany, Hungary
| | - Marina Yu. Khabarova
- Institute of Developmental Biology, Russian Academy of Sciences, Moscow 119334, Russia
| | - Réka Horváth
- Department of Experimental Zoology, Balaton Limnological Institute, MTA Centre for Ecological Research, Hungarian Academy of Sciences, H-8237 Tihany, Hungary
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17
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Battonyai I, Voronezhskaya EE, Obukhova A, Horváth R, Nezlin LP, Elekes K. Neuronal Development in the Larvae of the Invasive Biofouler Dreissena polymorpha (Mollusca: Bivalvia), with Special Attention to Sensory Elements and Swimming Behavior. Biol Bull 2018; 234:192-206. [PMID: 29949436 DOI: 10.1086/698511] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Although understanding of the neuronal development of Trochozoa has progressed recently, little attention has been paid to freshwater bivalves, including species with a strong ecological impact, such as the zebra mussel (Dreissena polymorpha). Therefore, an important question might concern how the developing nervous system is involved in the formation of the rapid and successful invasive behavior of this species. Our aim was to reveal the neuronal development of trochophore and veliger larvae of Dreissena, with special attention to the organization of sensory structures and their possible involvement in detecting environmental cues. After applying serotonin and FMRFamide immunocytochemistry, the first serotonin immunoreactive sensory elements appeared 16-18 hours after fertilization, whereas the first FMRFamide immunoreactive sensory cell was seen only at 32 hours of development (trochophore stage). Later, sensory elements were found in three parts of the larval body, including the apical organ, the posterior region, and the stomach. Although differences in the timing of appearance and the morphology of cells were observed, the two signaling systems showed basic similarity in their organization pattern until the end of the veliger stage. Pharmacological, physiological, and quantitative immunocytochemical investigations were also performed, suggesting the involvement of both the serotoninergic system and the FMRFamidergic system in sensomotor processes. Manipulation of the serotonin synthesis by para-chloroplenylalanine and 5-hydroxytryptophane, as well as application of increased salinity, influenced larval swimming activity, both accompanied by changes in immunofluorescence intensity. We concluded that these two early sensory systems may play an important role in the development of settlement competency of this biofouling invasive bivalve, Dreissena.
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Key Words
- 5-HT, serotonin
- 5-HTP, 5-hydroxytryptophan
- AO, apical organ
- DAPI, 4ʹ,6-diamidino-2-phenylindole
- EDTA, ethylenediaminetetraacetic acid
- FMRFa, FMRFamide
- FW, filtered water
- IHC, immunohistochemical
- IR, immunoreactive
- PBS, phosphate-buffered saline
- PBS-TX-NGS, PBS containing 1% Triton X-100 and 10% normal goat serum
- PFA, paraformaldehyde;
- PN, posterior neuron.
- hpf, hours post-fertilization
- pCPA, para-chlorophenilalanine
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18
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Darnai G, Nagy SA, Horváth R, Ács P, Perlaki G, Orsi G, Kovács N, Altbäcker A, Plózer E, Tényi D, Weintraut R, Schwarcz A, John F, Varga E, Bereczkei T, Clemens Z, Komoly S, Janszky J. Iron Concentration in Deep Gray Matter Structures is Associated with Worse Visual Memory Performance in Healthy Young Adults. J Alzheimers Dis 2018; 59:675-681. [PMID: 28671115 PMCID: PMC5523837 DOI: 10.3233/jad-170118] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Abnormally high deposition of iron can contribute to neurodegenerative disorders with cognitive impairment. Since previous studies investigating cognition-brain iron accumulation relationships focused on elderly people, our aim was to explore the association between iron concentration in subcortical nuclei and two types of memory performances in a healthy young population. Gender difference was found only in the globus pallidus. Our results showed that iron load characterized by R2* value on the MRI in the caudate and putamen was related to visual memory, while verbal memory was unrelated to iron concentration.
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Affiliation(s)
- Gergely Darnai
- Department of Neurology, University of Pécs, Medical School, Pécs, Hungary.,Institute of Psychology, University of Pécs, Pécs, Hungary.,Centre for Neuroscience, University of Pécs, Hungary.,MTA-PTE Clinical Neuroscience MR Research Group, Pécs, Hungary
| | - Szilvia Anett Nagy
- Pécs Diagnostic Centre, Pécs, Hungary.,MTA-PTE Clinical Neuroscience MR Research Group, Pécs, Hungary
| | - Réka Horváth
- Department of Neurology, University of Pécs, Medical School, Pécs, Hungary
| | - Péter Ács
- Department of Neurology, University of Pécs, Medical School, Pécs, Hungary
| | - Gábor Perlaki
- Pécs Diagnostic Centre, Pécs, Hungary.,MTA-PTE Clinical Neuroscience MR Research Group, Pécs, Hungary.,Department of Neurosurgery, University of Pécs, Medical School, Pécs, Hungary
| | - Gergely Orsi
- Pécs Diagnostic Centre, Pécs, Hungary.,MTA-PTE Clinical Neuroscience MR Research Group, Pécs, Hungary.,Department of Neurosurgery, University of Pécs, Medical School, Pécs, Hungary
| | - Norbert Kovács
- Department of Neurology, University of Pécs, Medical School, Pécs, Hungary.,MTA-PTE Clinical Neuroscience MR Research Group, Pécs, Hungary
| | - Anna Altbäcker
- Department of Neurology, University of Pécs, Medical School, Pécs, Hungary.,Institute of Cognitive Neuroscience and Psychology, Research Centre for Natural Sciences, Hungarian Academy of Sciences, Budapest, Hungary
| | - Enikő Plózer
- Department of Neurology, University of Pécs, Medical School, Pécs, Hungary
| | - Dalma Tényi
- Department of Neurology, University of Pécs, Medical School, Pécs, Hungary
| | - Rita Weintraut
- Department of Neurology, University of Pécs, Medical School, Pécs, Hungary
| | - Attila Schwarcz
- MTA-PTE Clinical Neuroscience MR Research Group, Pécs, Hungary.,Department of Neurosurgery, University of Pécs, Medical School, Pécs, Hungary
| | - Flóra John
- Department of Neurology, University of Pécs, Medical School, Pécs, Hungary
| | - Eszter Varga
- Department of Neurology, University of Pécs, Medical School, Pécs, Hungary
| | | | - Zsófia Clemens
- Department of Neurology, University of Pécs, Medical School, Pécs, Hungary
| | - Sámuel Komoly
- Department of Neurology, University of Pécs, Medical School, Pécs, Hungary
| | - József Janszky
- Department of Neurology, University of Pécs, Medical School, Pécs, Hungary.,Centre for Neuroscience, University of Pécs, Hungary.,MTA-PTE Clinical Neuroscience MR Research Group, Pécs, Hungary
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19
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Affiliation(s)
- B. Tajthi
- MTA-DE Biodiversity and Ecosystem Services Research Group, Debrecen, Egyetem square 1, H-4032, Hungary
| | - R. Horváth
- University of Debrecen, Department of Ecology,, Egyetem square 1, H-4032, Hungary
| | - Sz. Mizser
- MTA-DE Biodiversity and Ecosystem Services Research Group, Debrecen, Egyetem square 1, H-4032, Hungary
| | - D. D. Nagy
- MTA-DE Biodiversity and Ecosystem Services Research Group, Debrecen, Egyetem square 1, H-4032, Hungary
| | - B. Tóthmérész
- MTA-DE Biodiversity and Ecosystem Services Research Group, Debrecen, Egyetem square 1, H-4032, Hungary
- University of Debrecen, Department of Ecology,, Egyetem square 1, H-4032, Hungary
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20
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Altbäcker A, Plózer E, Darnai G, Perlaki G, Horváth R, Orsi G, Nagy SA, Bogner P, Schwarcz A, Kovács N, Komoly S, Clemens Z, Janszky J. Problematic internet use is associated with structural alterations in the brain reward system in females. Brain Imaging Behav 2017; 10:953-959. [PMID: 26399236 DOI: 10.1007/s11682-015-9454-9] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
Neuroimaging findings suggest that excessive Internet use shows functional and structural brain changes similar to substance addiction. Even though it is still under debate whether there are gender differences in case of problematic use, previous studies by-passed this question by focusing on males only or by using gender matched approach without controlling for potential gender effects. We designed our study to find out whether there are structural correlates in the brain reward system of problematic Internet use in habitual Internet user females. T1-weighted Magnetic Resonance (MR) images were collected in 82 healthy habitual Internet user females. Structural brain measures were investigated using both automated MR volumetry and voxel based morphometry (VBM). Self-reported measures of problematic Internet use and hours spent online were also assessed. According to MR volumetry, problematic Internet use was associated with increased grey matter volume of bilateral putamen and right nucleus accumbens while decreased grey matter volume of orbitofrontal cortex (OFC). Similarly, VBM analysis revealed a significant negative association between the absolute amount of grey matter OFC and problematic Internet use. Our findings suggest structural brain alterations in the reward system usually related to addictions are present in problematic Internet use.
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Affiliation(s)
- Anna Altbäcker
- Department of Neurology, University of Pécs, Pécs, Hungary. .,Institute of Cognitive Neuroscience and Psychology, Research Centre for Natural Sciences, Hungarian Academy of Sciences, Budapest, Hungary.
| | - Enikő Plózer
- Department of Neurology, University of Pécs, Pécs, Hungary
| | - Gergely Darnai
- Department of Neurology, University of Pécs, Pécs, Hungary
| | - Gábor Perlaki
- Department of Neurology, University of Pécs, Pécs, Hungary.,MTA-PTE Clinical Neuroscience MR Research Group, Pécs, Hungary.,Diagnostic Centre, Pécs, Hungary
| | - Réka Horváth
- Department of Neurology, University of Pécs, Pécs, Hungary
| | - Gergely Orsi
- Department of Neurology, University of Pécs, Pécs, Hungary.,MTA-PTE Clinical Neuroscience MR Research Group, Pécs, Hungary.,Diagnostic Centre, Pécs, Hungary
| | - Szilvia Anett Nagy
- Diagnostic Centre, Pécs, Hungary.,MTA-PTE, Neurobiology of Stress Research Group, Pécs, Hungary
| | | | - Attila Schwarcz
- MTA-PTE Clinical Neuroscience MR Research Group, Pécs, Hungary.,Department of Neurosurgery, University of Pécs, Pécs, Hungary
| | - Norbert Kovács
- Department of Neurology, University of Pécs, Pécs, Hungary
| | - Sámuel Komoly
- Department of Neurology, University of Pécs, Pécs, Hungary
| | - Zsófia Clemens
- Department of Neurology, University of Pécs, Pécs, Hungary.,National Institute of Clinical Neurosciences, Budapest, Hungary
| | - József Janszky
- Department of Neurology, University of Pécs, Pécs, Hungary.,MTA-PTE Clinical Neuroscience MR Research Group, Pécs, Hungary
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21
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Varga E, Bugya T, Endre S, Herold R, Horváth R, Mákos O, Kiss EC, Tényi T. [A new method for the measurement of social cognition in schizophrenia]. Psychiatr Hung 2017; 32:313-331. [PMID: 29135445] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
UNLABELLED Impairments in social cognitive functions and their long-term effects are well known in schizophrenia. However, so far no computer application has been available to assess these functions of patients. Our study is about introducing a new computer application measuring social cognitive abilities. The program (SCAN) is available on the following link and can be downloaded for anyone: psychiatry.pote.hu › Research › Workgroups › Schizophrenia. The hypothesis of our present study was that SCAN is able to assess the social cognitive ability of patients with schizophrenia in a rapid, complex and objective way. METHOD 86 schizophrenia patients and 101 healthy controls were examined. SCAN was used to present verbal and nonverbal tasks to measure four different domains of social cognition. SCAN registered the responses and the reaction times as well. Furthermore, an additional application was developed (called Scanalizer) to evaluate the results of a person being tested. RESULTS The results were evaluated by a two-dimensional analysis. This means that both task performance and the reaction time were taken into consideration while evaluating the results. As for the results, we found that the patients showed significantly worse functioning than the healthy subjects in the four domains of social cognition. CONCLUSION Based on our results, SCAN is effective enough to detect the atypical social processing of schizophrenia patients. Moreover, Scanalizer is capable of evaluating the social cognitive abilities of schizophrenia patients in a complex, relatively fast and objective way.
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Affiliation(s)
- Eszter Varga
- PTE AOK Pszichiatriai es Pszichoterapias Klinika, Pecs, Hungary, E-mail:
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22
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Tényi D, Gyimesi C, Kupó P, Horváth R, Bóné B, Barsi P, Kovács N, Simor T, Siegler Z, Környei L, Fogarasi A, Janszky J. Ictal asystole: A systematic review. Epilepsia 2016; 58:356-362. [DOI: 10.1111/epi.13644] [Citation(s) in RCA: 44] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/15/2016] [Indexed: 11/28/2022]
Affiliation(s)
- Dalma Tényi
- Department of Neurology; University of Pécs; Pécs Hungary
| | - Csilla Gyimesi
- Department of Neurology; University of Pécs; Pécs Hungary
| | - Péter Kupó
- Heart Institute; University of Pécs; Pécs Hungary
| | - Réka Horváth
- Department of Neurology; University of Pécs; Pécs Hungary
| | - Beáta Bóné
- Department of Neurology; University of Pécs; Pécs Hungary
| | - Péter Barsi
- MR Research Center; Semmelweis University; Budapest Hungary
| | - Norbert Kovács
- Department of Neurology; University of Pécs; Pécs Hungary
- PTE-MTA Clinical Neuroscience MR Research Group; Budapest Hungary
| | - Tamás Simor
- Heart Institute; University of Pécs; Pécs Hungary
| | - Zsuzsa Siegler
- Epilepsy Center; Bethesda Children's Hospital; Budapest Hungary
| | - László Környei
- Gottsegen György Hungarian Institute of Cardiology; Budapest Hungary
| | - András Fogarasi
- Epilepsy Center; Bethesda Children's Hospital; Budapest Hungary
| | - József Janszky
- Department of Neurology; University of Pécs; Pécs Hungary
- PTE-MTA Clinical Neuroscience MR Research Group; Budapest Hungary
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23
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Richter Z, Janszky J, Sétáló G, Horváth R, Horváth Z, Dóczi T, Seress L, Ábrahám H. Characterization of neurons in the cortical white matter in human temporal lobe epilepsy. Neuroscience 2016; 333:140-50. [DOI: 10.1016/j.neuroscience.2016.07.011] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2016] [Revised: 06/18/2016] [Accepted: 07/07/2016] [Indexed: 12/20/2022]
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24
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Nagy SA, Horváth R, Perlaki G, Orsi G, Barsi P, John F, Horváth A, Kovács N, Bogner P, Ábrahám H, Bóné B, Gyimesi C, Dóczi T, Janszky J. Age at onset and seizure frequency affect white matter diffusion coefficient in patients with mesial temporal lobe epilepsy. Epilepsy Behav 2016; 61:14-20. [PMID: 27232377 DOI: 10.1016/j.yebeh.2016.04.019] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/17/2016] [Revised: 04/05/2016] [Accepted: 04/06/2016] [Indexed: 02/01/2023]
Abstract
In mesial temporal lobe epilepsy with hippocampal sclerosis (MTLE-HS), structural abnormalities are present not only in the hippocampus but also in the white matter with ipsilateral predominance. Although the timing of epilepsy onset is commonly associated with clinical and semiological dissimilarities, limited data exist regarding white matter diffusion changes with respect to age at epilepsy onset. The aim of this study was to investigate diffusion changes in the white matter of patients with unilateral MTLE-HS with respect to clinical parameters and to compare them with an age- and sex-matched healthy control group. Apparent diffusion coefficients (ADCs) were derived using monoexponential approaches from 22 (11 early and 11 late age at onset) patients with unilateral MTLE-HS and 22 age- and sex-matched control subjects after acquiring diffusion-weighted images on a 3T MRI system. Data were analyzed using two-tailed t-tests and multiple linear regression models. In the group with early onset MTLE-HS, ADC was significantly elevated in the ipsilateral hemispheric (p=0.04) and temporal lobe white matter (p=0.01) compared with that in controls. These differences were not detectable in late onset MTLE-HS patients. Apparent diffusion coefficient of the group with early onset MTLE-HS was negatively related to age at epilepsy onset in the ipsilateral hemispheric white matter (p=0.03) and the uncinate fasciculus (p=0.03), while in patients with late onset MTLE-HS, ADC was no longer dependent on age at epilepsy onset itself but rather on the seizure frequency in the ipsilateral uncinate fasciculus (p=0.03). Such diffusivity pattern has been associated with chronic white matter degeneration, reflecting myelin loss and higher extracellular volume which are more pronounced in the frontotemporal regions and also depend on clinical features. In the group with early onset MTLE-HS, the timing of epilepsy seems to be the major cause of white matter abnormalities while in late onset disease, it has a secondary role in provoking diffusion changes.
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Affiliation(s)
- Szilvia A Nagy
- Pécs Diagnostics Center, H-7623 Pécs, Rét Street 2., Hungary; MTA-PTE, Neurobiology of Stress Research Group, H-7624 Pécs, Ifjúság Street 20., Hungary.
| | - Réka Horváth
- Department of Neurology, University of Pécs, H-7623 Pécs, Rét Street 2., Hungary.
| | - Gábor Perlaki
- Pécs Diagnostics Center, H-7623 Pécs, Rét Street 2., Hungary; MTA-PTE, Clinical Neuroscience MR Research Group, H-7623 Pécs, Rét Street 2., Hungary.
| | - Gergely Orsi
- Pécs Diagnostics Center, H-7623 Pécs, Rét Street 2., Hungary; MTA-PTE, Clinical Neuroscience MR Research Group, H-7623 Pécs, Rét Street 2., Hungary.
| | - Péter Barsi
- MR Research Centre, Semmelweis University, H-1083 Budapest, Balassa Street 6., Hungary.
| | - Flóra John
- Department of Neurology, University of Pécs, H-7623 Pécs, Rét Street 2., Hungary.
| | - Andrea Horváth
- Pécs Diagnostics Center, H-7623 Pécs, Rét Street 2., Hungary; Department of Neurosurgery, University of Pécs, H-7623 Pécs, Rét Street 2., Hungary.
| | - Norbert Kovács
- Department of Neurology, University of Pécs, H-7623 Pécs, Rét Street 2., Hungary; MTA-PTE, Clinical Neuroscience MR Research Group, H-7623 Pécs, Rét Street 2., Hungary.
| | - Péter Bogner
- Department of Radiology, University of Pécs, H-7624 Pécs, Ifjúság Street 13., Hungary.
| | - Hajnalka Ábrahám
- Department of Medical Biology, University of Pécs, H-7624 Pécs, Szigeti Street 12., Hungary; Central Electron Microscopic Laboratory, University of Pécs, H-7624 Pécs, Honvéd Street 1., Hungary.
| | - Beáta Bóné
- Department of Neurology, University of Pécs, H-7623 Pécs, Rét Street 2., Hungary.
| | - Csilla Gyimesi
- Department of Neurology, University of Pécs, H-7623 Pécs, Rét Street 2., Hungary.
| | - Tamás Dóczi
- Pécs Diagnostics Center, H-7623 Pécs, Rét Street 2., Hungary; MTA-PTE, Clinical Neuroscience MR Research Group, H-7623 Pécs, Rét Street 2., Hungary; Department of Neurosurgery, University of Pécs, H-7623 Pécs, Rét Street 2., Hungary.
| | - József Janszky
- Department of Neurology, University of Pécs, H-7623 Pécs, Rét Street 2., Hungary; MTA-PTE, Clinical Neuroscience MR Research Group, H-7623 Pécs, Rét Street 2., Hungary.
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Tényi D, Gyimesi C, Horváth R, Kovács N, Ábrahám H, Darnai G, Fogarasi A, Büki A, Janszky J. Concussive convulsions: A YouTube video analysis. Epilepsia 2016; 57:1310-6. [DOI: 10.1111/epi.13432] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/13/2016] [Indexed: 12/19/2022]
Affiliation(s)
- Dalma Tényi
- Department of Neurology; University of Pécs; Pécs Hungary
| | - Csilla Gyimesi
- Department of Neurology; University of Pécs; Pécs Hungary
| | - Réka Horváth
- Department of Neurology; University of Pécs; Pécs Hungary
| | - Norbert Kovács
- Department of Neurology; University of Pécs; Pécs Hungary
- PTE-MTA Clinical Neuroscience MR Research Group; Pécs Hungary
| | | | - Gergely Darnai
- Department of Neurology; University of Pécs; Pécs Hungary
| | - András Fogarasi
- Epilepsy Center; Bethesda Children's Hospital; Budapest Hungary
| | - András Büki
- Department of Neurosurgery; University of Pécs; Pécs Hungary
| | - József Janszky
- Department of Neurology; University of Pécs; Pécs Hungary
- PTE-MTA Clinical Neuroscience MR Research Group; Pécs Hungary
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Darnai G, Plózer E, Perlaki G, Orsi G, Nagy SA, Horváth R, Schwarcz A, Kovács N, Altbäcker A, Janszky J, Clemens Z. 2D:4D finger ratio positively correlates with total cerebral cortex in males. Neurosci Lett 2016; 615:33-6. [PMID: 26780566 DOI: 10.1016/j.neulet.2015.12.056] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2015] [Revised: 12/21/2015] [Accepted: 12/25/2015] [Indexed: 11/28/2022]
Abstract
Although there is evidence that the ratio of 2nd-4th digit length (2D:4D) correlates with prenatal testosterone level, psychological and health traits only two studies have assessed the relationship with brain morphological features. Here we investigated the association between the 2D:4D ratio and several brain subvolumes. Seventy-five subjects between the ages of 18 and 30 were included in the study. The length of the 2nd and 4th digits were measured with an electronic vernier caliper while MRI measurements were performed on a Siemens Magnetom Trio Tim (3T) system. Freesurfer software suite was used for volumetric segmentation. Finger ratio significantly positively correlated with total cerebral cortex, total cerebellar white matter and total cerebellar cortex in males but not in females. Our results indicate that prenatal testosterone, as estimated by the 2D:4D ratio has an effect on adult brain morphology in males.
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Affiliation(s)
- Gergely Darnai
- Department of Neurology, University of Pécs, Pécs, Hungary.
| | - Enikő Plózer
- Department of Neurology, University of Pécs, Pécs, Hungary
| | - Gábor Perlaki
- Department of Neurology, University of Pécs, Pécs, Hungary; Pécs Diagnostic Centre, Pécs, Hungary; MTA-PTE Clinical Neuroscience MR Research Group, Pécs, Hungary
| | - Gergely Orsi
- Department of Neurology, University of Pécs, Pécs, Hungary; Pécs Diagnostic Centre, Pécs, Hungary; MTA-PTE Clinical Neuroscience MR Research Group, Pécs, Hungary
| | | | - Réka Horváth
- Department of Neurology, University of Pécs, Pécs, Hungary
| | - Attila Schwarcz
- MTA-PTE Clinical Neuroscience MR Research Group, Pécs, Hungary; Department of Neurosurgery, Pécs, Hungary
| | - Norbert Kovács
- Department of Neurology, University of Pécs, Pécs, Hungary
| | - Anna Altbäcker
- Department of Neurology, University of Pécs, Pécs, Hungary; Institute of Cognitive Neuroscience and Psychology, Research Centre for Natural Sciences, Hungarian Academy of Sciences, Budapest, Hungary
| | - József Janszky
- Department of Neurology, University of Pécs, Pécs, Hungary; MTA-PTE Clinical Neuroscience MR Research Group, Pécs, Hungary
| | - Zsófia Clemens
- Department of Neurology, University of Pécs, Pécs, Hungary; National Institute of Clinical Neuroscience, Budapest, Hungary
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27
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Darnai G, Plózer E, Perlaki G, Orsi G, Nagy SA, Horváth R, Schwarcz A, Kovács N, Altbäcker A, Janszky J, Clemens Z. Milk and dairy consumption correlates with cerebral cortical as well as cerebral white matter volume in healthy young adults. Int J Food Sci Nutr 2015; 66:826-9. [DOI: 10.3109/09637486.2015.1093609] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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28
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Karádi K, Lucza T, Aschermann Z, Komoly S, Deli G, Bosnyák E, Acs P, Horváth R, Janszky J, Kovács N. Visuospatial impairment in Parkinson's disease: the role of laterality. Laterality 2014; 20:112-27. [PMID: 25341015 DOI: 10.1080/1357650x.2014.936444] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
Asymmetry is one of the unique and mysterious features of Parkinson's disease (PD). Motor symptoms develop unilaterally either on the left (LPD) or the right side (RPD). Incongruent data are available whether the side of onset has an impact on cognition in PD. The objective of this study is to compare the visuospatial performance of RPD and LPD patients. Seventy-one non-demented, non-depressive and right-handed patients were categorized into RBD (n = 36) and LPD (n = 35) groups. Rey-Osterrieth Complex Figure Test (ROCF) was evaluated by both the Taylor's and Loring's scoring systems. Subsequently, we also performed subgroup analyses on patients having short disease duration (≤5 years, 15 RBD and 15 LPD patients). The standard analysis of ROCF (Taylor's system) did not reveal any differences; however, the utilization of the Loring's system demonstrated that LPD patients had significantly worse visuospatial performance than the RPD subjects (3.0 vs. 2.0 points, median, p = 0.002). Correlation between the number of spatial errors and the degree of asymmetry was significant (r = -0.437, p = 0.001). However, this difference could not be observed in PD patients with short disease duration. LPD patients had worse visuospatial performance than the RPD subjects and the number of errors tightly correlated with the degree of asymmetry and long disease duration.
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Affiliation(s)
- Kázmér Karádi
- a Institute of Behavioral Sciences, University of Pécs , Pécs , Hungary
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29
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Šedivá A, Horváth R, Maňásek V, Gregorová A, Plevová P, Horáčková M, Tesařová M, Toplak N, Debeljak M. Cluster of patients with Familial Mediterranean fever and heterozygous carriers of mutations inMEFVgene in the Czech Republic. Clin Genet 2013; 86:564-9. [DOI: 10.1111/cge.12323] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2013] [Revised: 11/04/2013] [Accepted: 11/15/2013] [Indexed: 11/28/2022]
Affiliation(s)
- A. Šedivá
- Department of Immunology; Charles University, 2nd School of Medicine, Faculty Hospital Motol; Prague Czech Republic
| | - R. Horváth
- Department of Immunology; Charles University, 2nd School of Medicine, Faculty Hospital Motol; Prague Czech Republic
| | - V. Maňásek
- Complex Center for Oncology; Hospital Nový Jičín; Nový Jičín Czech Republic
| | - A. Gregorová
- Department of Medical Genetics; University Hospital Ostrava; Ostrava Czech Republic
| | - P. Plevová
- Department of Medical Genetics; University Hospital Ostrava; Ostrava Czech Republic
| | - M. Horáčková
- Department of Internal Medicine; Charles University, 2nd School of Medicine, Faculty Hospital Motol; Prague Czech Republic
| | - M. Tesařová
- Department of Paediatrics and Adolescent medicine, 1st Faculty of Medicine; Charles University in Prague and General University Hospital in Prague; Prague Czech Republic
| | - N. Toplak
- Molecular Genetic Laboratory and Department of Allergology, Rheumatology and Clinical Immunology; University Children's Hospital, University Medical Centre Ljubljana; Ljubljana Slovenia
| | - M. Debeljak
- Molecular Genetic Laboratory and Department of Allergology, Rheumatology and Clinical Immunology; University Children's Hospital, University Medical Centre Ljubljana; Ljubljana Slovenia
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Sittová M, Dendis M, Dosoudilová S, Horváth R, Chromá M, Husicková V, Hricová K, Kolár M. [Rapid identification of ESBL--positive clinical samples using real-time PCR method]. Klin Mikrobiol Infekc Lek 2013; 19:80-84. [PMID: 24579449] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
OBJECTIVES A new method has been developed for detecting genes determining the extended-spectrum beta-lactamase (ESBL) phenotype directly from patients' clinical material. The method enables detection of the bla(CTX-M) gene encoding CTX-M beta-lactamases and the bla(SHV) gene variants with real-time PCR technology using locked nucleic acid oligonucleotides. MATERIAL AND METHODS In this pilot study, tracheal aspirates obtained from patients with mechanical ventilation hospitalized at Department of Anaesthesiology and Resuscitation of the University Hospital in Olomouc between 1st March and 30th December 2010 period were tested. Each sample was identified with standard microbiological procedures including phenotypic determination of ESBL-positive enterobacteria. At the same time, each sample was analyzed for the presence of nucleic acids (DNA) which encode CTX-M and SHV ESBL using real-time PCR. RESULTS 150 samples of tracheal aspirates from 71 patients were included into testing. In the set, 13 (8.7%) ESBL-positive samples were identified by culture methods while 27 (18 %) positive samples were identified by the real-time PCR method. Of the 27 PCR-positive samples, 24 were positive for the bla(CTX) gene; in 2 samples, the ESBL bla(SHV) gene was detected, and both genes were present in 1 sample. All culture-positive samples were also PCR-positive for the presence of bla(CTX) and/or bla(SHV) sequences. CONCLUSIONS The new real-time PCR assay is likely to shorten the time for detection of enterobacteria producing SHV and CTX-M beta-lactamases from 48 to 6 hours. It enables ESBL-positive enterobacteria determination in tracheal aspirates of patients suffered from life-threatening nosocomial pneumonia where the early introduction of adequate antimicrobial treatment plays the important role.
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Affiliation(s)
| | | | | | | | - M Chromá
- Ustav mikrobiologie, Lékarská fakulta Univerzity Palackého v Olomouci
| | - V Husicková
- Ustav mikrobiologie, Lékarská fakulta Univerzity Palackého v Olomouci
| | - K Hricová
- Ustav mikrobiologie, Lékarská fakulta Univerzity Palackého v Olomouci
| | - M Kolár
- Ustav mikrobiologie, Lékarská fakulta Univerzity Palackého v Olomouci
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31
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Gyimesi C, Bóné B, Tóth M, Horváth R, Komoly S, Janszky J. [Antiepileptic drugs in treatment of epilepsy and follow up of their efficacy]. Ideggyogy Sz 2013; 66:76-88. [PMID: 23750423] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Epilepsy is one of the most common neurological diseases usually demanding long term treatment. The prime goal of therapy is to achieve seizure freedom with avoidance of side effects. Precise diagnosis is fundamental selecting the proper antiepileptic drug(s). In addition of wide-spectrum antiepileptics, selective syndrome-specific antiepileptic drugs are available. Pharmacological features of the new antiepileptics allow more personalized clinical use. Aim of this paper is to provide a comprehensive pragmatic review of therapeutic possibilities and recommendations currently accessible in Hungary.
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Affiliation(s)
- Csilla Gyimesi
- Pécsi Tudományegyetem, Klinikai Központ, Neurológiai Klinika, Pécs.
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32
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Horváth R, Rožková D, Lašťovička J, Poloučková A, Sedláček P, Sedivá A, Spíšek R. Expansion of T helper type 17 lymphocytes in patients with chronic granulomatous disease. Clin Exp Immunol 2011; 166:26-33. [PMID: 21910722 DOI: 10.1111/j.1365-2249.2011.04449.x] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Hyper-immunoglobulin (Ig)E syndrome (HIES) is a primary immunodeficiency associated with mutations in STAT3 resulting in impaired development of T helper type 17 (Th17) lymphocytes. HIES patients with a reduced frequency of Th17 cells present with infections caused by Staphylococcus aureus and/or Candida strains. The same spectrum of pathogens is present in patients with chronic granulomatous disease (CGD).We analysed the characteristics of the Th17 compartment in HIES and CGD. HIES patients showed very low numbers of Th17 cells. By contrast, the frequency of Th17 cells and production of Th17-derived cytokines was significantly higher among CGD patients when compared to both control samples and HIES. Naive CD4(+) cells in CGD patients had a normal capacity to differentiate into IL-17-producing cells and the numbers of Th17 cells in the CGD patients normalized following successful bone marrow transplantation. Our findings complement recent data on the importance of Th17 cells for elimination of infections with C. albicans and S. aureus.
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Affiliation(s)
- R Horváth
- Department of Immunology Department of Pediatric Hematology and Oncology, Charles University, 2nd Medical School and University Hospital Motol, Prague, Czech Republic
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33
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Minárik I, Horváth R, Podrazil M, Hromádková H, Dušek P, Jarolím L, Babjuk M, Bartůňková J. C40 PHASE I/II OF CLINICAL STUDY OF PROSTATE CANCER IMMUNOTHERAPY USING DENDRITIC CELL VACCINATION STRATEGY – FIRST RESULTS. ACTA ACUST UNITED AC 2010. [DOI: 10.1016/s1569-9056(10)61564-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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34
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Hrabák J, Buncek M, Dendis M, Horváth R, Chronáková A, Libra A, Nesvera J, Pantůcek R, Piskunová N, Plísková L, Růzicka F, Sauer P, Sedlácek I, Trubac P, Zampachová E, Zemlicková H, Scharfen J. [The use of molecular genetics techniques in clinical microbiology--final report from the workshop of the Molecular Microbiology Working Group TIDE]. Epidemiol Mikrobiol Imunol 2010; 59:103-106. [PMID: 20925245] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
In the last decade, there has been a rapid development in the use of molecular genetics methods in clinical microbiology. Novel technologies bring new knowledge and approaches to various disciplines of microbiology--taxonomy, identification of microbes, clinical diagnosis, epidemiology of infectious diseases and antibiotic resistance. This article summarizes the conclusions from the workshop of the Molecular Microbiology Working Group TIDE held during the Second Annual Meeting of the Society for Medical Microbiology of the J. E. Purkyne Czech Medical Association.
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Affiliation(s)
- J Hrabák
- Ustav mikrobiologie, Lékarská fakulta UK a Fakultní nemocnice v Plzni, Plzen.
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35
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Finke C, Horváth R, Holinski-Feder E, Ploner CJ. [Fragile X-associated tremor/ataxia syndrome]. Nervenarzt 2009; 80:1473-1479. [PMID: 19763529 DOI: 10.1007/s00115-009-2846-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Fragile X-associated tremor/ataxia syndrome (FXTAS) is a recently characterized adult onset neurodegenerative disorder affecting both male and female (male>female) carriers of premutation CGG repeat expansions of the FMR1 gene. Onset typically occurs after the age of 50 years with a lifetime risk of FXTAS in males of about 1 in 3,000-6,000. Core features include progressive gait ataxia and cerebellar tremor with associated features of cognitive deficits, peripheral neuropathy and dysautonomia. The diagnosis of FXTAS is established based on clinical presentation, cerebral imaging and genetic testing. Due to the still low level of awareness of FXTAS and its variable clinical picture FXTAS is substantially underdiagnosed. However, confirming the diagnosis is essential for genetic counseling of the patients as the offspring are at risk for fragile X syndrome, premature ovarian insufficiency (POI) or FXTAS. Furthermore, many features of FXTAS can be treated symptomatically.
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Affiliation(s)
- C Finke
- Klinik für Neurologie, Charité-Universitätsmedizin Berlin, Charitéplatz 1, Berlin.
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36
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Horváth R, Kalmár Z, Fehér N, Fogarasi A, Gyimesi C, Janszky J. [Brain lateralization and seizure semiology: ictal clinical lateralizing signs]. Ideggyogy Sz 2008; 61:231-237. [PMID: 18763478] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
Clinical lateralizing signs are the phenomena which can unequivocally refer to the hemispheric onset of epileptic seizures. They can improve the localization of epileptogenic zone during presurgical evaluation, moreover, their presence can predict a success of surgical treatment. Primary sensory phenomena such as visual aura in one half of the field of vision or unilateral ictal somatosensory sensation always appear on the contralateral to the focus. Periictal unilateral headache, although it is an infrequent symptom, is usually an ipsilateral sign. Primary motor phenomena like epileptic clonic, tonic movements, the version of head ubiquitously appear contralateral to the epileptogenic zone. Very useful lateralization sign is the ictal hand-dystonia which lateralizes to the contralateral hemisphere in nearly 100%. The last clonus of the secondarily generalized tonic-clonic seizure lateralizes to the ipsilateral hemisphere in 85%. The fast component of ictal nystagmus appears in nearly 100% on the contralateral side of the epileptic focus. Vegetative symptoms during seizures arising from temporal lobe such as spitting, nausea, vomiting, urinary urge are typical for seizures originating from non-dominant (right) hemisphere. Ictal pallor and cold shivers are dominant hemispheric lateralization signs. Postictal unilateral nose wiping refers to the ipsilateral hemispheric focus compared to the wiping hand. Ictal or postictal aphasia refers to seizure arising from dominant hemisphere. Intelligable speech during complex partial seizures appears in non-dominant seizures. Automatism with preserved consciousness refers to the seizures of non-dominant temporal lobe.
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Affiliation(s)
- Réka Horváth
- Pécsi Tudományegyetem, Neurológiai Klinika, Pécs
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37
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Netusil J, Zákovská A, Horváth R, Dendis M, Janouskovcová E. Presence of Borrelia burgdorferi sensu lato in mites parasitizing small rodents. Vector Borne Zoonotic Dis 2006; 5:227-32. [PMID: 16187890 DOI: 10.1089/vbz.2005.5.227] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Ticks (especially those in the family Ixodidae) are the primary vectors of the infectious agent Borrelia burgdorferi sensu lato, which causes Lyme disease. To determine the potential role of mites as vectors of B. burgdorferi sensu lato, mites were collected from wild rodents in the Bazantula region of North Moravia (Czech Republic). These samples were examined for the presence of Borreliae by using DFM and PCR methods. Mites positive for the presence of DNA of B. burgdorferi sensu lato were determined as members of the families Haemogamasidae and Parasitidae. One sample from a mite of genus Haemogamasus was successfully isolated, and the specimen was confirmed as B. afzelii by using PCR-RFLP and by gradient SDS-PAGE. This suggests the possible participation of gamasid mites in borrelial circulation in nature and also points to the utility of further such studies to identify potential vectors (other than ticks) of the spirochete.
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Affiliation(s)
- J Netusil
- Department of Comparative Animal Physiology and General Zoology, Faculty of Science, Masaryk University, Brno, Czech Republic.
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38
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Horváth R, Abicht A, Holinski-Feder E, Laner A, Gempel K, Prokisch H, Lochmüller H, Klopstock T, Jaksch M. Leigh syndrome caused by mutations in the flavoprotein (Fp) subunit of succinate dehydrogenase (SDHA). J Neurol Neurosurg Psychiatry 2006; 77:74-6. [PMID: 16361598 PMCID: PMC2117401 DOI: 10.1136/jnnp.2005.067041] [Citation(s) in RCA: 109] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
Detailed clinical, neuroradiological, histological, biochemical, and genetic investigations were undertaken in a child suffering from Leigh syndrome. The clinical symptoms started at age five months and led to a severe progressive neurodegenerative disorder causing epilepsy, psychomotor retardation, and tetraspasticity. Biochemical measurement of skeletal muscle showed a severe decrease in mitochondrial complex II. Sequencing of SDHA revealed compound heterozygosity for a nonsense mutation in exon 4 (W119X) and a missense mutation in exon 3 (A83V), both absent in normal controls. In six additional patients--five with Leigh or Leigh-like syndrome and one with neuropathy and ataxia associated with isolated deficiency of complex II--mutations in SDHA were not detected, indicating genetic heterogeneity.
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Affiliation(s)
- R Horváth
- Metabolic Disease Centre Munich-Schwabing, Institute of Clinical Chemistry, Academic Hospital Schwabing, Kölner Platz 1, 80804 Munich, Germany.
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39
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Horváth R, Schoser BGH, Müller-Höcker J, Völpel M, Jaksch M, Lochmüller H. Mutations in mtDNA-encoded cytochrome c oxidase subunit genes causing isolated myopathy or severe encephalomyopathy. Neuromuscul Disord 2005; 15:851-7. [PMID: 16288875 DOI: 10.1016/j.nmd.2005.09.005] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2005] [Revised: 09/02/2005] [Accepted: 09/14/2005] [Indexed: 10/25/2022]
Abstract
We report on clinical, histological and genetic findings in two patients carrying novel heteroplasmic mutations in the mitochondrial cytochrome c oxidase subunit genes COII and COIII. The first patient, a 35 year-old man had a multisystemic disease, with clinical symptoms of bilateral cataract, sensori-neural hearing loss, myopathy, ataxia, cardiac arrhythmia, depression and short stature and carried a 7970 G>T (E129X) nonsense mutation in COII. A sudden episode of metabolic encephalopathy caused by extremely high blood lactate lead to coma. The second patient developed exercise intolerance and rhabdomyolysis at age 22 years. A heteroplasmic missense mutation 9789 T>C (S195P) was found in skeletal muscle, but not in blood and myoblasts pointing to a sporadic mutation. Our report of two patients with isolated COX deficiency and new mutations in COX subunit genes may help to draw more attention to this type of mtDNA defects and provide new aspects for counselling affected families.
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Affiliation(s)
- R Horváth
- Metabolic Disease Center Munich-Schwabing, Institutes of Clinical Chemistry, Molecular Diagnostics and Mitochondrial Genetics, Academic Hospital Schwabing, Kölner Platz 1, 80804 Munich, Germany.
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40
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Horváth R, Freisinger P, Rubio R, Merl T, Bax R, Mayr JA, Müller-Höcker J, Pongratz D, Moller LB, Horn N, Jaksch M. Congenital cataract, muscular hypotonia, developmental delay and sensorineural hearing loss associated with a defect in copper metabolism. J Inherit Metab Dis 2005; 28:479-92. [PMID: 15902551 DOI: 10.1007/s10545-005-0479-x] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/01/2004] [Accepted: 01/27/2005] [Indexed: 11/27/2022]
Abstract
Deficiencies of different proteins involved in copper metabolism have been reported to cause human diseases. Well-known syndromes, for example, are Menkes and Wilson diseases. Here we report a patient presenting with congenital cataract, severe muscular hypotonia, developmental delay, sensorineural hearing loss and cytochrome-c oxidase deficiency with repeatedly low copper and ceruloplasmin levels. These findings were suggestive of a copper metabolism disorder. In support of this, the patient's fibroblasts showed an increased copper uptake with normal retention. Detailed follow-up examinations were performed. Immunoblotting for several proteins including ATP7A (MNK or Menkes protein), ATP7B (Wilson protein) and SOD1 showed normal results, implying a copper metabolism defect other than Wilson or Menkes disease. Sequence analysis of ATOX1 and genes coding for proteins that are known to play a role in the mitochondrial copper metabolism (COI-III, SCO1, SCO2, COX11, COX17, COX19) revealed no mutations. Additional disease genes that have been associated with cytochrome-c oxidase deficiency were negative for mutations as well. As beneficial effects of copper histidinate supplementation have been reported in selected disorders of copper metabolism presenting with low serum copper and ceruloplasmin levels, we initiated a copper histidinate supplementation. Remarkable improvement of clinical symptoms was observed, with complete restoration of cytochrome-c oxidase activity in skeletal muscle.
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Affiliation(s)
- R Horváth
- Metabolic Disease Center Munich-Schwabing, Institutes of Clinical Chemistry, Molecular Diagnostics and Mitochondrial Genetics, Munich, Germany
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41
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Rozková D, Horváth R, Bartůnková J, Spísek R. [Glucocorticoids and their effect on dendritic cell function]. Cas Lek Cesk 2005; 144:825-31; discussion 832. [PMID: 16389756] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/06/2023]
Abstract
BACKGROUND Dendritic cells represent the most effective antigen presenting cells and they are the only cell type capable of initiating the primary immune response. They use several sets of germ-line encoded receptors to differentiate between self and non-self and to detect the presence of danger signals. Danger signals are mainly represented by microbial pathogens but it can be also a necrotic or malignant cell. At various stages of their lifecycle dendritic cells play a key role in maintaining the peripheral tolerance towards self-antigens and in the initiation of an effective immune response. Glucocorticoids have been widely used in the treatment of autoimmune or inflammatory disorders and their immunosuppressive effect has been mainly attributed to the inhibition of lymphocytes functions. METHODS AND RESULTS In this study, we discuss the effects of glucocorticoids on in vitro generated myeloid dendritic cells and on peripheral blood myeloid and plasmacytoid dendritic cells subsets. CONCLUSIONS Experimental results point to the profound suppressive effect of glucocorticoids on the antigen presenting functions of dendritic cells and to contribute to better understanding of glucocorticoids-mediated immunosuppressive effect.
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Affiliation(s)
- D Rozková
- Ustav imunologie 2. LF UK a FNM, Praha.
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Horváth R, Lochmüller H, Hoeltzenbein M, Müller-Höcker J, Schoser BG, Pongratz D, Jaksch M. Spontaneous recovery of a childhood onset mitochondrial myopathy caused by a stop mutation in the mitochondrial cytochrome c oxidase III gene. J Med Genet 2004; 41:e75. [PMID: 15173241 PMCID: PMC1735806 DOI: 10.1136/jmg.2003.015024] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Kiechl S, Horváth R, Luoma P, Kiechl-Kohlendorfer U, Wallacher-Scholz B, Stucka R, Thaler C, Wanschitz J, Suomalainen A, Jaksch M, Willeit J. Two families with autosomal dominant progressive external ophthalmoplegia. J Neurol Neurosurg Psychiatry 2004; 75:1125-8. [PMID: 15258213 PMCID: PMC1739155 DOI: 10.1136/jnnp.2003.025890] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
OBJECTIVES We report here the clinical and genetic features of two new families with autosomal dominant progressive external ophthalmoplegia (adPEO). PATIENTS AND METHODS The examination of index patients included a detailed clinical characterisation, histological analysis of muscle biopsy specimens, and genetic testing of mitochondrial and nuclear DNA extracted from muscle and leucocytes. RESULTS Index patients in both families presented with PEO and developed other clinical disease manifestations, such as myopathy and cardiomyopathy (patient 1) and axonal neuropathy, diabetes mellitus, hearing loss, and myopathy (patient 2), later in the course of illness. Both patients had ragged red fibres on muscle histology. Southern blot of mtDNA from muscle of patient 2 showed multiple deletions. In this case, a novel heterozygous missense mutation F485L was identified in the nuclear encoded putative mitochondrial helicase Twinkle. The mutation co-segregated with the clinical phenotype in the family and was not detected in 150 control chromosomes. In the other index patient, sequencing of ANT1, C10orf2 (encoding for Twinkle), and POLG1 did not reveal pathogenic mutations. CONCLUSIONS Our cases illustrate the clinical variability of adPEO, add a novel pathogenic mutation in Twinkle (F485L) to the growing list of genetic abnormalities in adPEO, and reinforce the relevance of other yet unidentified genes in mtDNA maintenance and pathogenesis of adPEO.
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Affiliation(s)
- S Kiechl
- Department of Neurology, University Hospital Innsbruck, Austria.
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Horváth R, Dendis M, Schlegelová J, Růzicka F, Benedík J. A combined AFLP-multiplex PCR assay for molecular typing of Escherichia coli strains using variable bacterial interspersed mosaic elements. Epidemiol Infect 2004; 132:61-5. [PMID: 14979591 PMCID: PMC2870079 DOI: 10.1017/s095026880300133x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
Abstract
The original method for molecular typing of E. coli strains was developed using the polymorphism in chromosomal sequences of bacterial interspersed mosaic elements (BIMEs) detected by multiplex PCR and analysed by AFLP assay. The applicability of the method in the epidemiology of E. coli was tested on a group of 524 strains of human and veterinary origin. In the studied group 18 different genotypes were detected. Significant differences were found in the frequencies of the genotypes among various groups of strains, suggesting the method could be a promising tool in the epidemiology of E. coli.
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Affiliation(s)
- R Horváth
- Genex CZ Ltd, Podstránská 74, 600 00 Brno, Czech Republic
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Schlegelová J, Nápravnı́ková E, Dendis M, Horváth R, Benedı́k J, Babák V, Klı́mová E, Navrátilová P, Šustáčková A. Beef carcass contamination in a slaughterhouse and prevalence of resistance to antimicrobial drugs in isolates of selected microbial species. Meat Sci 2004; 66:557-65. [DOI: 10.1016/s0309-1740(03)00159-1] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2002] [Revised: 06/18/2003] [Accepted: 06/27/2003] [Indexed: 11/24/2022]
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Dendis M, Horváth R, Michálek J, Růzicka F, Grijalva M, Bartos M, Benedík J. PCR-RFLP detection and species identification of fungal pathogens in patients with febrile neutropenia. Clin Microbiol Infect 2003; 9:1191-202. [PMID: 14686984 DOI: 10.1111/j.1469-0691.2003.00719.x] [Citation(s) in RCA: 40] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Abstract
OBJECTIVE To assess the usefulness of polymerase chain reaction (PCR) assays in the diagnosis of fungal infections in immunocompromised patients. METHODS A rapid and sensitive PCR-based assay for the detection and identification of fungal pathogens was designed and applicability of this method was investigated in a group of children with cancer and febrile neutropenia (FN). RESULTS The ITS2 sequences and adjacent regions of 40 fungal pathogens were analyzed and primers for detection of all analyzed fungal species were designed. Amplification product length polymorphism (APLP) and restriction fragment length polymorphism (RFLP) generated genus- or species-specific patterns. The sensitivity of the method was approximately three cells of Candida albicans per 1 mL of blood. The results were available within 8 h after sample collection. The method was tested on 53 blood samples and one lung biopsy sample from 24 children with cancer and febrile neutropenia (FN). The PCR assay detected fungal DNA in 25 clinical samples from ten patients. Blood cultures were positive in only five samples, while another two blood-culture negative patients had positive cultures from throat swabs. The remaining 14 patients were both culture- and PCR-negative. Culture-isolated strains matched completely those obtained by PCR-APLP-RFLP identification. The identity of fungal species was confirmed by direct sequencing of amplified products. CONCLUSION Our results suggest that PCR-APLP-RFLP assays can be useful in the diagnosis of fungal infections in immunocompromised patients.
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MESH Headings
- Adolescent
- Child
- Child, Preschool
- DNA, Fungal/chemistry
- DNA, Fungal/genetics
- DNA, Ribosomal Spacer/chemistry
- DNA, Ribosomal Spacer/genetics
- Female
- Fever/microbiology
- Fungi/genetics
- Fungi/isolation & purification
- Humans
- Immunocompromised Host
- Infant
- Male
- Mycoses/microbiology
- Neutropenia/microbiology
- Polymerase Chain Reaction/methods
- Polymorphism, Restriction Fragment Length
- RNA, Ribosomal/chemistry
- RNA, Ribosomal/genetics
- RNA, Ribosomal, 5.8S/chemistry
- RNA, Ribosomal, 5.8S/genetics
- Sensitivity and Specificity
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Horváth R, Lochmüller H, Scharfe C, Do BH, Oefner PJ, Müller-Höcker J, Schoser BG, Pongratz D, Auer DP, Jaksch M. A tRNA(Ala) mutation causing mitochondrial myopathy clinically resembling myotonic dystrophy. J Med Genet 2003; 40:752-7. [PMID: 14569122 PMCID: PMC1735288 DOI: 10.1136/jmg.40.10.752] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Abstract
An instrument for optical waveguide lightmode spectroscopy (OWLS) was designed and developed for measurements at different and controlled temperatures in a range of 15 degrees C around room temperature. The instrument allows to scan the waveguide modes at different wavelengths on the same optical chip using different lasers. This instrument was used to monitor DMPC lipid bilayer main phase transition around the critical temperature. The main problem in these experiments is that the OWLS measurements do not give enough information about an optically anisotropic system like a lipid bilayer. Experimental OWLS data at two different wavelengths can however approximately solve the problem. The temperature dependence of the thickness and the refractive indices (ordinary and extraordinary) for the lipid bilayer around the phase transition is presented. (A theoretical derivation of the extraordinary refractive index is given in.)
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Affiliation(s)
- R Horváth
- Department of Biological Physics, Eötvös University, Pázmány Péter sétány 1A, 1113 Budapest, Hungary
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Grijalva M, Horváth R, Dendis M, Erný J, Benedík J. Molecular diagnosis of culture negative infective endocarditis: clinical validation in a group of surgically treated patients. Heart 2003; 89:263-8. [PMID: 12591825 PMCID: PMC1767592 DOI: 10.1136/heart.89.3.263] [Citation(s) in RCA: 82] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 08/14/2002] [Indexed: 11/04/2022] Open
Abstract
OBJECTIVE To assess the clinical validity of polymerase chain reaction (PCR) based molecular methods in the microbiological diagnosis of culture negative infective endocarditis in a group of surgically treated patients. DESIGN Retrospective case-control study. SETTING Reference cardiovascular surgical centre. PATIENTS AND SAMPLES: 15 culture negative patients with infective endocarditis classified according to Duke criteria, with 17 heart valve samples; 13 age and sex matched control patients without infective endocarditis, with 13 valve samples. INTERVENTIONS Medical records were reviewed and clinical, demographic, and microbiological data collected, including results of molecular detection of bacteria and fungi from valve samples. The clinical validity of molecular diagnosis was assessed, along with the sensitivity and speed of the systems. RESULTS In the study group, 14 patients were PCR positive (93%). Organisms detected were streptococci (3), staphylococci (2), enterobacter (1), Tropheryma whippelii (1), Borrelia burgdorferi (1), Candida albicans (1), and Aspergillus species (2). Three cases were positive on universal bacterial detection but the pathogen could not be identified because of contaminating background. One case was negative. All but two positive cases showed clinical correlations. These two cases had no symptoms of infective endocarditis but there was agreement with the surgical findings. All control cases were PCR negative. Results were available within eight hours, and if sequencing was necessary, within 48 hours. CONCLUSIONS PCR based molecular detection of pathogens in valve samples from surgically treated culture negative infective endocarditis patients is fast, sensitive, and reliable. The technology, combined with thorough validation and clinical interpretation, may be a promising tool for routine testing of infective endocarditis.
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Affiliation(s)
- M Grijalva
- Centre of Cardiovascular Surgery and Transplantation, Brno, Czech Republic
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Benedík J, Cerný J, Votava M, Wechsler J, Horváth R, Dendis M, Grijalva M. [Molecular diagnosis of infections]. Cas Lek Cesk 2003; 142:75-9. [PMID: 12698532] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 03/01/2023]
Abstract
Molecular diagnostics (detection of nucleic acids by molecular genetics techniques) become more valuable in clinical diagnosis of disease. Apart from the already long-time used genetic techniques for detection of congenital anomalies, current use of molecular techniques includes detection of microbial pathogens. The character of these techniques increases the possibility of achieving diagnosis in cases where classical cultivation is not possible, is not reliable or is not fast enough. As with every new approach, molecular diagnostics have faced encountered reactions from the scientific community. Some scientists tend to overestimate the value of molecular diagnostic techniques, while sceptics, sometimes influenced by a biased or incomplete knowledge of the technology, think it is of little value. In this work, on the basis of literature and our own data from more than 5 years of experience with these methods, we have assessed the pros and cons of the use of molecular diagnostics of infectious diseases in the light of their potential use in clinical practice.
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Affiliation(s)
- J Benedík
- Centrum kardiovaskulární a transplantaèni chirurgie, Brno.
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