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Magyar M, Tóth A, Nyilas LN, Biró I, Kozák RL, Gyebnár G, Rudas G, Maurovich Horvat P, Bereczki D, Barsi P. [The importance of MR imaging in the diagnosis and management of acute stroke]. Ideggyogy Sz 2023; 76:233-244. [PMID: 37471200 DOI: 10.18071/isz.76.0233] [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] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/22/2023]
Abstract
Background and purpose In our collaborative project, called MRI First!, every patient arriving with neurological symptoms of acute stroke and without contraindications was examined by MRI. Our aim was to detect the symptomatic lesions, to obtain appropriate information about the brain parenchyma and to analyse parenchymal perfusion and brain vasculature. . Methods The examinations were conducted on a Philips Ingenia 1.5 Tesla scanner with the following protocol: DWI-ADC, FLAIR, T2 FFE/SWI, PWI, and contrast-enhanced MRA. 415 patients were examined between January 2020 and May 2021. 179 patients arrived within-, and 136 patients after 4.5 hours symptoms onset time, while 100 patients had “wake-up” stroke. . Results Within the 4.5 hours group, 81 cases had acute ischemic lesion, 48 of them received reperfusion therapy. Acute ischemic lesion was found in 64 patients in the wake-up stroke group and in 64 in the 4.5-24 hours group. In these groups 10 and 12 patients obtained reperfusion therapy, respectively. Further 117 cases were considered as stroke mimics, in which cases unnecessary intravenous thrombolysis was avoidable. . Conclusion MRI is accepted as a sensitive diagnostic modality providing detailed information regarding the brain parenchyma, its perfusion and vasculature. Nonetheless, its worldwide utilization in acute stroke is low and further information should be collected on which patient groups would gain the most benefit from acute MR imaging. Our continuous work is aimed at that goal. .
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Affiliation(s)
- Máté Magyar
- Semmelweis Egyetem, Általános Orvostudományi Kar, Orvosi Képalkotó Klinika, Neuroradiológia Tanszék, Budapest
| | - Adrienn Tóth
- Semmelweis Egyetem, Általános Orvostudományi Kar, Budapest
| | - Luca Nóra Nyilas
- Semmelweis Egyetem, Általános Orvostudományi Kar, Orvosi Képalkotó Klinika, Neuroradiológia Tanszék, Budapest
| | - István Biró
- Semmelweis Egyetem, Általános Orvostudományi Kar, Orvosi Képalkotó Klinika, Neuroradiológia Tanszék, Budapest
| | - Rudolf Lajos Kozák
- Semmelweis Egyetem, Általános Orvostudományi Kar, Orvosi Képalkotó Klinika, Neuroradiológia Tanszék, Budapest
| | - Gyula Gyebnár
- Semmelweis Egyetem, Általános Orvostudományi Kar, Orvosi Képalkotó Klinika, Neuroradiológia Tanszék, Budapest
| | - Gábor Rudas
- Semmelweis Egyetem, Általános Orvostudományi Kar, Orvosi Képalkotó Klinika, Neuroradiológia Tanszék, Budapest
| | - Pál Maurovich Horvat
- Semmelweis Egyetem, Általános Orvostudományi Kar, Orvosi Képalkotó Klinika, Budapest
| | - Dániel Bereczki
- Semmelweis Egyetem, Általános Orvostudományi Kar, Neurológiai Klinika, Budapest
| | - Péter Barsi
- Semmelweis Egyetem, Általános Orvostudományi Kar, Orvosi Képalkotó Klinika, Neuroradiológia Tanszék, Budapest
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Sipka G, Nagy L, Magyar M, Akhtar P, Shen JR, Holzwarth AR, Lambrev PH, Garab G. Light-induced reversible reorganizations in closed Type II reaction centre complexes: physiological roles and physical mechanisms. Open Biol 2022; 12:220297. [PMID: 36514981 PMCID: PMC9748786 DOI: 10.1098/rsob.220297] [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] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
The purpose of this review is to outline our understanding of the nature, mechanism and physiological significance of light-induced reversible reorganizations in closed Type II reaction centre (RC) complexes. In the so-called 'closed' state, purple bacterial RC (bRC) and photosystem II (PSII) RC complexes are incapable of generating additional stable charge separation. Yet, upon continued excitation they display well-discernible changes in their photophysical and photochemical parameters. Substantial stabilization of their charge-separated states has been thoroughly documented-uncovering light-induced reorganizations in closed RCs and revealing their physiological importance in gradually optimizing the operation of the photosynthetic machinery during the dark-to-light transition. A range of subtle light-induced conformational changes has indeed been detected experimentally in different laboratories using different bRC and PSII-containing preparations. In general, the presently available data strongly suggest similar structural dynamics of closed bRC and PSII RC complexes, and similar physical mechanisms, in which dielectric relaxation processes and structural memory effects of proteins are proposed to play important roles.
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Affiliation(s)
- G. Sipka
- Institute of Plant Biology, Biological Research Centre, Szeged, Temesvári körút 62, 6726 Szeged, Hungary
| | - L. Nagy
- Institute of Plant Biology, Biological Research Centre, Szeged, Temesvári körút 62, 6726 Szeged, Hungary,Institute of Medical Physics and Informatics, University of Szeged, Rerrich B. tér 1, 6720 Szeged, Hungary
| | - M. Magyar
- Institute of Plant Biology, Biological Research Centre, Szeged, Temesvári körút 62, 6726 Szeged, Hungary
| | - P. Akhtar
- Institute of Plant Biology, Biological Research Centre, Szeged, Temesvári körút 62, 6726 Szeged, Hungary
| | - J.-R. Shen
- Institute of Interdisciplinary Science, and Graduate School of Natural Science and Technology, Okayama University, 700-8530 Okayama, Japan,Institute of Botany, Chinese Academy of Sciences, 100093 Beijing, People's Republic of China
| | - A. R. Holzwarth
- Max-Planck-Institute for Chemical Energy Conversion, 45470 Mülheim a.d. Ruhr, Germany
| | - P. H. Lambrev
- Institute of Plant Biology, Biological Research Centre, Szeged, Temesvári körút 62, 6726 Szeged, Hungary
| | - G. Garab
- Institute of Plant Biology, Biological Research Centre, Szeged, Temesvári körút 62, 6726 Szeged, Hungary,Department of Physics, Faculty of Science, University of Ostrava, 710 00 Ostrava, Czech Republic
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Magyar M, Kökönyei G, Baksa D, Galambos A, Édes AE, Szabó E, Kocsel N, Gecse K, Dobos D, Gyüre T, Juhász G, Ertsey C. A cross-sectional study on the quality of life in migraine and medication overuse headache in a Hungarian sample: understanding the effect of headache characteristics. Ideggyogy Sz 2022; 75:253-263. [PMID: 35916612 DOI: 10.18071/isz.75.0253] [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] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
BACKGROUND AND PURPOSE Previous studies using generic and disease specific instruments showed that both migraine and medication overuse headache are associated with lower health-related quality of life (HRQoL). The aim of our study was to assess HRQoL differences in migraineurs and in patients with MOH and to examine how headache characteristics such as years with headache, aura symptoms, triptan use, headache pain severity and headache frequency are related to HRQoL. METHODS In this cross-sectional study 334 participants were examined (248 were recruited from a tertiary headache centre and 86 via advertisements). The Comp-rehensive Headache-related Quality of life Questionnaire (CHQQ) was used to measure the participants' HRQoL. Data showed normal distribution, therefore beside Chi-squared test parametric tests (e.g. independent samples t-test) were used with a two-tailed p<0.05 threshold. Linear regression models were used to determine the independent effects of sex, age, recruitment method, headache type (migraine vs. MOH) and headache characteristics (presence of aura symptoms, years with headache, headache pain severity, headache frequency and triptan use) separately for each domain and for the total score of CHQQ. Significance threshold was adopted to p0.0125 (0.05/4) to correct for multiple testing and avoid Type I error. RESULTS Independent samples t-tests showed that patients with MOH had significantly lower scores on all CHQQ domains than migraineurs, except on the social subscale. Results of a series of regression analyses showed that triptan use was inversely related to all the domains of HRQoL after correction for multiple testing (p<0.0125). In addition, headache pain severity was associated with lower physical (p=0.001) and total scores (p=0.002) on CHQQ subscales. CONCLUSION Based on the results, different headache characteristics (but not the headache type, namely migraine or MOH) were associated with lower levels of HRQoL in patients with headache. Determining which factors play significant role in the deterioration of HRQoL is important to adequately manage different patient populations and to guide public health policies regarding health service utilization and health-care costs.
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Affiliation(s)
- Máté Magyar
- SE-NAP 2 Genetic Brain Imaging Migraine Research Group, Semmelweis University, Budapest, Hungary
- Department of Neurology, Faculty of Medicine, Semmelweis University, Budapest, Hungary
- János Szentágothai Doctoral School of Neurosciences
| | - Gyöngyi Kökönyei
- SE-NAP 2 Genetic Brain Imaging Migraine Research Group, Semmelweis University, Budapest, Hungary
- Institute of Psychology, ELTE Eötvös Loránd University, Budapest, Hungary
- Department of Pharmacodynamics, Faculty of Pharmaceutical Sciences, Semmelweis University, Budapest, Hungary
| | - Dániel Baksa
- SE-NAP 2 Genetic Brain Imaging Migraine Research Group, Semmelweis University, Budapest, Hungary
- Department of Pharmacodynamics, Faculty of Pharmaceutical Sciences, Semmelweis University, Budapest, Hungary
| | - Attila Galambos
- SE-NAP 2 Genetic Brain Imaging Migraine Research Group, Semmelweis University, Budapest, Hungary
- Institute of Psychology, ELTE Eötvös Loránd University, Budapest, Hungary
- Doctoral School of Psychology, ELTE Eötvös Loránd University, Budapest, Hungary
| | - Andrea Edit Édes
- SE-NAP 2 Genetic Brain Imaging Migraine Research Group, Semmelweis University, Budapest, Hungary
| | - Edina Szabó
- SE-NAP 2 Genetic Brain Imaging Migraine Research Group, Semmelweis University, Budapest, Hungary
- Institute of Psychology, ELTE Eötvös Loránd University, Budapest, Hungary
- Center for Pain and the Brain (PAIN Research Group), Department of Anesthesiology, Critical Care and Pain Medicine, Boston Children's Hospital, Harvard Medical School, Boston, MA, USA
| | - Natália Kocsel
- SE-NAP 2 Genetic Brain Imaging Migraine Research Group, Semmelweis University, Budapest, Hungary
- Institute of Psychology, ELTE Eötvös Loránd University, Budapest, Hungary
| | - Kinga Gecse
- SE-NAP 2 Genetic Brain Imaging Migraine Research Group, Semmelweis University, Budapest, Hungary
- Department of Pharmacodynamics, Faculty of Pharmaceutical Sciences, Semmelweis University, Budapest, Hungary
| | - Dóra Dobos
- SE-NAP 2 Genetic Brain Imaging Migraine Research Group, Semmelweis University, Budapest, Hungary
- Department of Pharmacodynamics, Faculty of Pharmaceutical Sciences, Semmelweis University, Budapest, Hungary
| | - Tamás Gyüre
- János Szentágothai Doctoral School of Neurosciences
| | - Gabriella Juhász
- SE-NAP 2 Genetic Brain Imaging Migraine Research Group, Semmelweis University, Budapest, Hungary
- Department of Pharmacodynamics, Faculty of Pharmaceutical Sciences, Semmelweis University, Budapest, Hungary
- MTA-SE, Neuropsychopharmacology and Neurochemistry Research Group, Hungarian Academy of Sciences, Semmelweis University, Budapest, Hungary
| | - Csaba Ertsey
- Department of Neurology, Faculty of Medicine, Semmelweis University, Budapest, Hungary
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Magyar M, Glasz T, Kovács T, Deák AB, Maurovich-Horvat P, Futácsi B. Liver displacement caused by distended stomach in Parkinsonian patient. Imaging 2021. [DOI: 10.1556/1647.2021.00004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
AbstractGastroparesis, a form of gastrointestinal dysfunction and the increased risk for aspiration pneumonia are well known complications in patients with Parkinson’s disease. In our case report we demonstrate the case of an 83-year-old, bedridden male patient with Parkinson’s disease, who had a slowly progressing stomach dilation, gradually pushing the otherwise normal liver to a highly unusual craniodorsally rotated position.
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Affiliation(s)
- Máté Magyar
- Department of Neuroradiology, Faculty of Medicine, Medical Imaging Centre, Semmelweis University, Budapest, Hungary
| | - Tibor Glasz
- 2nd Department of Pathology, Faculty of Medicine, Semmelweis University, Budapest, Hungary
| | - Tekla Kovács
- 2nd Department of Pathology, Faculty of Medicine, Semmelweis University, Budapest, Hungary
| | - András Bálint Deák
- 2nd Department of Pathology, Faculty of Medicine, Semmelweis University, Budapest, Hungary
| | - Pál Maurovich-Horvat
- Department of Radiology, Faculty of Medicine, Medical Imaging Centre, Semmelweis University, Budapest, Hungary
| | - Balázs Futácsi
- Department of Radiology, Faculty of Medicine, Medical Imaging Centre, Semmelweis University, Budapest, Hungary
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Magyar M, Nyilas NL, Bereczki D, Bozsik G, Rudas G, Ertsey C, Maurovich-Horvat P, Barsi P. Evaluation and diagnosis of spontaneous intracranial hypotension with magnetic resonance imaging. Orv Hetil 2021; 162:246-251. [PMID: 33582651 DOI: 10.1556/650.2021.31961] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2020] [Accepted: 08/24/2020] [Indexed: 11/19/2022]
Abstract
Összefoglaló. A klasszikus esetben ortosztatikus fejfájást okozó, spontán intracranialis hypotensiót az esetek túlnyomó többségében a gerinccsatornában, annak nyaki-háti átmenetében, illetve a háti szakaszán található liquorszivárgás okozza. Meglévő kötőszöveti betegség, degeneratív gerincbetegségek, illetve kisebb traumák szerepet játszhatnak a szivárgás kialakulásában. Az ortosztatikus fejfájás létrejöttében szerepet játszhat a meningealis szerkezetek, érzőidegek és hídvénák vongálódása. A klasszikus pozicionális, ortosztatikus fejfájásban szenvedő betegek körében gondolni kell a spontán intracranialis hypotensio lehetőségére, és az agykoponya, illetve a gerinc kontrasztanyaggal végzett mágneses rezonanciás vizsgálata (MRI) javasolt. A kontrasztanyaggal végzett koponya-MRI-vel klasszikus esetben diffúz, nem nodularis, intenzív, vaskos pachymeningealis kontrasztanyag-halmozás, kitágult vénássinus-rendszer, subduralis effusiók és az agytörzs caudalis diszlokációja ("slumping") látható. Fontos azonban szem előtt tartani, hogy az esetek 20%-ában ezen eltérések nem detektálhatók. Jó minőségű, randomizált, kontrollált vizsgálatok nem történtek, a kezelés hagyományokon alapul. Kezdetben általában konzervatív terápiát alkalmaznak (ágynyugalom, koffein- és folyadékbevitel), ennek hatástalansága esetén epiduralis sajátvér-injekció, epiduralis fibrinragasztó-injektálás, illetve sebészi terápia jöhet szóba. Orv Hetil. 2021; 162(7): 246-251. Summary. Spontaneous intracranial hypotension, the classic feature of which is orthostatic headache, is most commonly caused by a cerebrospinal fluid leakage at the level of the spinal canal, in most cases at the thoracic level or cervicothoracic junction. Underlying connective tissue disorders, minor trauma, degenerative spinal diseases may play a role in the development of cerebrospinal fluid leaks. Traction on pain-sensitive intracranial and meningeal structures, particularly sensory nerves and bridging veins, may play a role in the development of orthostatic headache. In the case of patients with classic orthostatic headache, the possibility of spontaneous intracranial hypotension should be considered, and if suspected, brain magnetic resonance imaging (MRI) with gadolinium and additional spine MRI are recommended. Diffuse, non-nodular, intense, thick dural enhancement, subdural effusions, engorgement of cerebral venous sinuses, sagging of the brain are typical features on brain MRI, which, however, remain normal in up to 20 percent of patients with spontaneous intracranial hypotension. Unfortunately, no randomized clinical trials have evaluated the effectiveness of the various treatment strategies and no definitive treatment protocols have been established. In clinical practice, the first-line treatment of spontaneous intracranial hypotension is conservative (bed rest, caffeine and fluid intake). If conservative therapy is not effective, epidural blood patch, epidural fibrin glue, or surgical repair should be considered. Orv Hetil. 2021; 162(7): 246-251.
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Affiliation(s)
- Máté Magyar
- 1 Semmelweis Egyetem, Általános Orvostudományi Kar, Neurológiai Klinika, Budapest, Balassa J. u. 6., 1083.,2 Semmelweis Egyetem, Szentágothai János Idegtudományi Doktori Iskola, Budapest.,3 Semmelweis Egyetem, Általános Orvostudományi Kar, Orvosi Képalkotó Klinika, Neuroradiológia Tanszék, Budapest
| | - Nóra Luca Nyilas
- 3 Semmelweis Egyetem, Általános Orvostudományi Kar, Orvosi Képalkotó Klinika, Neuroradiológia Tanszék, Budapest
| | - Dániel Bereczki
- 1 Semmelweis Egyetem, Általános Orvostudományi Kar, Neurológiai Klinika, Budapest, Balassa J. u. 6., 1083
| | - György Bozsik
- 1 Semmelweis Egyetem, Általános Orvostudományi Kar, Neurológiai Klinika, Budapest, Balassa J. u. 6., 1083
| | - Gábor Rudas
- 3 Semmelweis Egyetem, Általános Orvostudományi Kar, Orvosi Képalkotó Klinika, Neuroradiológia Tanszék, Budapest
| | - Csaba Ertsey
- 1 Semmelweis Egyetem, Általános Orvostudományi Kar, Neurológiai Klinika, Budapest, Balassa J. u. 6., 1083
| | - Pál Maurovich-Horvat
- 4 Semmelweis Egyetem, Általános Orvostudományi Kar, Orvosi Képalkotó Klinika, Radiológia Tanszék, Budapest
| | - Péter Barsi
- 3 Semmelweis Egyetem, Általános Orvostudományi Kar, Orvosi Képalkotó Klinika, Neuroradiológia Tanszék, Budapest
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Magyar M, Barsi P, Korányi K, Kaposi PN. Thrombosed orbital varix with mild, spontaneously resolving symptoms. Imaging 2020. [DOI: 10.1556/1647.2020.00001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
AbstractOrbital varices are abnormally enlarged, thin walled veins in direct connection with normal orbital vessels. Stooping, bending, coughing or straining increase the venous tension and in this way can cause symptoms, such as bulging of the eyes (proptosis), orbital pain, bleeding, intermittent double vision. Small varices are managed by observation while larger lesions may require surgery. In our case report we demonstrate the case of a 72-year-old female patient with right sided retro-orbital pressure sensation for weeks, and exophthalmos with blurred vision for 1 week. MR investigation proved the presence of a partially thrombosed orbital varix on the right side, and a smaller, non-thrombosed varix on the left side. Observation was agreed, and the symptoms resolved spontaneously after several weeks.
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Affiliation(s)
- Máté Magyar
- 1Department of Neuroradiology, Faculty of Medicine, Medical Imaging Centre, Semmelweis University, Budapest, Hungary
- 3Department of Neurology, Faculty of Medicine, Semmelweis University, Budapest, Hungary
| | - Péter Barsi
- 1Department of Neuroradiology, Faculty of Medicine, Medical Imaging Centre, Semmelweis University, Budapest, Hungary
| | - Katalin Korányi
- 4Department of Ophthalmology, Faculty of Medicine, Semmelweis University, Budapest, Hungary
| | - Pál Novák Kaposi
- 2Department of Radiology, Medical Imaging Centre, Faculty of Medicine, Semmelweis University, Budapest, Hungary
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Dióssy M, Balogh E, Magyar M, Gyüre T, Csépány É, Bozsik G, Ertsey C. [The quality of life of the cluster headache patients during the active phase of the headache]. Ideggyogy Sz 2020; 73:15-26. [PMID: 32057200 DOI: 10.18071/isz.73.0015] [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] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
Background and purpose Cluster headache (CH), which affects 0.1% of the population, is one of the most painful human conditions: despite adequate treatment, the frequent and severe headaches cause a significant burden to the patients. According to a small number of previous studies, CH has a serious negative effect on the sufferers' quality of life (QOL). In the current study, we set out to examine the quality of life of the CH patients attending our outpatient service between 2013 and 2016, using generic and headache-specific QOL instruments. Methods A total of 42 CH patients (16 females and 26 males; mean age: 39.1±13.5 years) completed the SF-36 generic QOL questionnaire and the headache- specific CHQQ questionnaire (Comprehensive Headache- related Quality of life Questionnaire), during the active phase of their headache. Their data were compared to those of patients suffering from chronic tension-type headache (CTH) and to data obtained from controls not suffering from significant forms of headache, using Kruskal-Wallis tests. Results During the active phase of the CH, the patients' generic QOL was significantly worse than that of normal controls in four of the 8 domains of the SF-36 instrument. Apart from a significantly worse result in the 'Bodily pain' SF-36 domain, there were no significant differences between the CH patients' and the CTH patients' results. All the dimensions and the total score of the headache-specific CHQQ instrument showed significantly worse QOL in the CH group than in the CTH group or in the control group. Conclusion Cluster headache has a significant negative effect on the quality of life. The decrease of QOL experienced by the patients was better reflected by the headache-specific CHQQ instrument than by the generic SF-36 instrument.
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Affiliation(s)
- Mária Dióssy
- Semmelweis Egyetem, Általános Orvostudományi Kar, Budapest
| | - Eszter Balogh
- Nyírô Gyula Országos Pszichiátriai és Addiktológiai Intézet, Neurológiai Osztály, Budapest
| | - Máté Magyar
- Semmelweis Egyetem, Szentágothai János Idegtudományi Doktori Iskola, Budapest.,Semmelweis Egyetem, Általános Orvostudományi Kar, Neurológiai Klinika, Budapest
| | - Tamás Gyüre
- Semmelweis Egyetem, Szentágothai János Idegtudományi Doktori Iskola, Budapest
| | - Éva Csépány
- Semmelweis Egyetem, Szentágothai János Idegtudományi Doktori Iskola, Budapest
| | - György Bozsik
- Semmelweis Egyetem, Általános Orvostudományi Kar, Neurológiai Klinika, Budapest
| | - Csaba Ertsey
- Semmelweis Egyetem, Általános Orvostudományi Kar, Neurológiai Klinika, Budapest
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Kocsel N, Galambos A, Szabó E, Édes AE, Magyar M, Zsombók T, Pap D, Kozák LR, Bagdy G, Kökönyei G, Juhász G. Altered neural activity to monetary reward/loss processing in episodic migraine. Sci Rep 2019; 9:5420. [PMID: 30931979 PMCID: PMC6443660 DOI: 10.1038/s41598-019-41867-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [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: 10/22/2018] [Accepted: 03/11/2019] [Indexed: 11/09/2022] Open
Abstract
The dysfunctions of the mesolimbic cortical reward circuit have been proposed to contribute to migraine pain. Although supporting empirical evidence was mainly found in connection with primary rewards or in chronic migraine where the pain experience is (almost) constant. Our goal however was to investigate the neural correlates of secondary reward/loss anticipation and consumption using the monetary incentive delay task in 29 episodic migraine patients and 41 headache-free controls. Migraine patients showed decreased activation in one cluster covering the right inferior frontal gyrus during reward consumption compared to controls. We also found significant negative correlation between the time of the last migraine attack before the scan and activation of the parahippocampal gyrus and the right hippocampus yielded to loss anticipation. During reward/loss consumption, a relative increase in the activity of the visual areas was observed the more time passed between the last attack and the scan session. Our results suggest intact reward/loss anticipation but altered reward consumption in migraine, indicating a decreased reactivity to monetary rewards. The findings also raise the possibility that neural responses to loss anticipation and reward/loss consumption could be altered by the proximity of the last migraine attack not just during pre-ictal periods, but interictally as well.
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Affiliation(s)
- Natália Kocsel
- Doctoral School of Psychology, ELTE Eötvös Loránd University, Budapest, Hungary.,Institute of Psychology, ELTE Eötvös Loránd University, Budapest, Hungary.,SE-NAP2 Genetic Brain Imaging Migraine Research Group, Semmelweis University, Budapest, Hungary.,Department of Pharmacodynamics, Faculty of Pharmacy, Semmelweis University, Budapest, Hungary
| | - Attila Galambos
- Doctoral School of Psychology, ELTE Eötvös Loránd University, Budapest, Hungary.,Institute of Psychology, ELTE Eötvös Loránd University, Budapest, Hungary.,MTA-SE Neuropsychopharmacology and Neurochemistry Research Group, Hungarian Academy of Sciences, Semmelweis University, Budapest, Hungary
| | - Edina Szabó
- Doctoral School of Psychology, ELTE Eötvös Loránd University, Budapest, Hungary.,Institute of Psychology, ELTE Eötvös Loránd University, Budapest, Hungary.,MTA-SE Neuropsychopharmacology and Neurochemistry Research Group, Hungarian Academy of Sciences, Semmelweis University, Budapest, Hungary
| | - Andrea Edit Édes
- SE-NAP2 Genetic Brain Imaging Migraine Research Group, Semmelweis University, Budapest, Hungary.,Department of Pharmacodynamics, Faculty of Pharmacy, Semmelweis University, Budapest, Hungary
| | - Máté Magyar
- Department of Neurology, Faculty of Medicine, Semmelweis University, Budapest, Hungary
| | - Terézia Zsombók
- Department of Neurology, Faculty of Medicine, Semmelweis University, Budapest, Hungary
| | - Dorottya Pap
- Department of Pharmacodynamics, Faculty of Pharmacy, Semmelweis University, Budapest, Hungary
| | | | - György Bagdy
- Department of Pharmacodynamics, Faculty of Pharmacy, Semmelweis University, Budapest, Hungary.,MTA-SE Neuropsychopharmacology and Neurochemistry Research Group, Hungarian Academy of Sciences, Semmelweis University, Budapest, Hungary
| | - Gyöngyi Kökönyei
- Institute of Psychology, ELTE Eötvös Loránd University, Budapest, Hungary. .,SE-NAP2 Genetic Brain Imaging Migraine Research Group, Semmelweis University, Budapest, Hungary. .,Department of Pharmacodynamics, Faculty of Pharmacy, Semmelweis University, Budapest, Hungary.
| | - Gabriella Juhász
- SE-NAP2 Genetic Brain Imaging Migraine Research Group, Semmelweis University, Budapest, Hungary.,Department of Pharmacodynamics, Faculty of Pharmacy, Semmelweis University, Budapest, Hungary.,Neuroscience and Psychiatry Unit, The University of Manchester and Manchester Academic Health Sciences Centre, Manchester, United Kingdom
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Csépány É, Tóth M, Gyüre T, Magyar M, Bozsik G, Bereczki D, Juhász G, Ertsey C. The validation of the Hungarian version of the ID-migraine questionnaire. J Headache Pain 2018; 19:106. [PMID: 30419813 PMCID: PMC6755580 DOI: 10.1186/s10194-018-0938-z] [Citation(s) in RCA: 9] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2018] [Accepted: 10/25/2018] [Indexed: 12/13/2022] Open
Abstract
Background Despite its high prevalence, migraine remains underdiagnosed and undertreated. ID-Migraine is a short, self-administrated questionnaire, originally developed in English by Lipton et al. and later validated in several languages. Our goal was to validate the Hungarian version of the ID-Migraine Questionnaire. Methods Patients visiting two headache specialty services were enrolled. Diagnoses were made by headache specialists according to the ICHD-3beta diagnostic criteria. There were 309 clinically diagnosed migraineurs among the 380 patients. Among the 309 migraineurs, 190 patients had only migraine, and 119 patients had other headache beside migraine, namely: 111 patients had tension type headache, 3 patients had cluster headache, 4 patients had medication overuse headache and one patient had headache associated with sexual activity also. Among the 380 patients, 257 had only a single type headache whereas 123 patients had multiple types of headache. Test-retest reliability of the ID-Migraine Questionnaire was studied in 40 patients. Results The validity features of the Hungarian version of the ID-Migraine questionnaire were the following: sensitivity 0.95 (95% CI, 0.92–0.97), specificity 0.42 (95% CI, 0.31–0.55), positive predictive value 0.88 (95% CI, 0.84–0.91), negative predictive value 0.65 (95% CI, 0.5–0.78), missclassification error 0.15 (95% CI, 0.12–0.19). The kappa coefficient of the questionnaire was 0.77. Conclusion The Hungarian version of the ID-Migraine Questionnaire had adequate sensitivity, positive predictive value and misclassification error, but a low specificity and somewhat low negative predictive value.
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Affiliation(s)
- Éva Csépány
- Szentágothai János Doctoral School of Neurosciences, Semmelweis University, Üllői u. 26, Budapest, 1085, Hungary.,Department of Neurology, Semmelweis University, Balassa u. 6, Budapest, 1083, Hungary
| | - Marianna Tóth
- Department of Neurology, Vaszary Kolos Hospital, Petőfi Sándor u. 26-28, Esztergom, 2500, Hungary
| | - Tamás Gyüre
- Szentágothai János Doctoral School of Neurosciences, Semmelweis University, Üllői u. 26, Budapest, 1085, Hungary
| | - Máté Magyar
- Szentágothai János Doctoral School of Neurosciences, Semmelweis University, Üllői u. 26, Budapest, 1085, Hungary.,Department of Neurology, Semmelweis University, Balassa u. 6, Budapest, 1083, Hungary
| | - György Bozsik
- Department of Neurology, Semmelweis University, Balassa u. 6, Budapest, 1083, Hungary
| | - Dániel Bereczki
- Department of Neurology, Semmelweis University, Balassa u. 6, Budapest, 1083, Hungary
| | - Gabriella Juhász
- SE-NAP2 Genetic Brain Imaging Migraine Research Group, Semmelweis University, Nagyvárad tér 4, Budapest, 1089, Hungary.,Department of Pharmacodynamics, Faculty of Pharmacy, Semmelweis University, Nagyvárad tér 4, Budapest, 1089, Hungary
| | - Csaba Ertsey
- Department of Neurology, Semmelweis University, Balassa u. 6, Budapest, 1083, Hungary.
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11
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Juhasz G, Csepany E, Magyar M, Edes AE, Eszlari N, Hullam G, Antal P, Kokonyei G, Anderson IM, Deakin JFW, Bagdy G. Variants in the CNR1 gene predispose to headache with nausea in the presence of life stress. Genes Brain Behav 2017; 16:384-393. [PMID: 27762084 PMCID: PMC5347942 DOI: 10.1111/gbb.12352] [Citation(s) in RCA: 14] [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] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/01/2016] [Revised: 10/15/2016] [Accepted: 10/17/2016] [Indexed: 12/13/2022]
Abstract
One of the main effects of the endocannabinoid system in the brain is stress adaptation with presynaptic endocannabinoid receptor 1 (CB1 receptors) playing a major role. In the present study, we investigated whether the effect of the CB1 receptor coding CNR1 gene on migraine and its symptoms is conditional on life stress. In a cross-sectional European population (n = 2426), recruited from Manchester and Budapest, we used the ID-Migraine questionnaire for migraine screening, the Life Threatening Experiences questionnaire to measure recent negative life events (RLE), and covered the CNR1 gene with 11 SNPs. The main genetic effects and the CNR1 × RLE interaction with age and sex as covariates were tested. None of the SNPs showed main genetic effects on possible migraine or its symptoms, but 5 SNPs showed nominally significant interaction with RLE on headache with nausea using logistic regression models. The effect of rs806366 remained significant after correction for multiple testing and replicated in the subpopulations. This effect was independent from depression- and anxiety-related phenotypes. In addition, a Bayesian systems-based analysis demonstrated that in the development of headache with nausea all SNPs were more relevant with higher a posteriori probability in those who experienced recent life stress. In summary, the CNR1 gene in interaction with life stress increased the risk of headache with nausea suggesting a specific pathological mechanism to develop migraine, and indicating that a subgroup of migraine patients, who suffer from life stress triggered migraine with frequent nausea, may benefit from therapies that increase the endocannabinoid tone.
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Affiliation(s)
- G. Juhasz
- MTA‐SE‐NAP B Genetic Brain Imaging Migraine Research Group, Hungarian Academy of SciencesBudapestHungary
- Department of Pharmacodynamics, Faculty of PharmacySemmelweis UniversityBudapestHungary
- Neuroscience and Psychiatry UnitThe University of Manchester and Manchester Academic Health Sciences CentreManchesterUnited Kingdom
- MTA‐SE Neuropsychopharmacology and Neurochemistry Research Group, Hungarian Academy of Sciences
- NAP‐A‐SE Research GroupSemmelweis UniversityBudapestHungary
| | - E. Csepany
- MTA‐SE‐NAP B Genetic Brain Imaging Migraine Research Group, Hungarian Academy of SciencesBudapestHungary
- Department of Neurology, Faculty of MedicineSemmelweis UniversityBudapestHungary
| | - M. Magyar
- MTA‐SE‐NAP B Genetic Brain Imaging Migraine Research Group, Hungarian Academy of SciencesBudapestHungary
- Department of Neurology, Faculty of MedicineSemmelweis UniversityBudapestHungary
| | - A. E. Edes
- MTA‐SE‐NAP B Genetic Brain Imaging Migraine Research Group, Hungarian Academy of SciencesBudapestHungary
- MTA‐SE Neuropsychopharmacology and Neurochemistry Research Group, Hungarian Academy of Sciences
| | - N. Eszlari
- MTA‐SE‐NAP B Genetic Brain Imaging Migraine Research Group, Hungarian Academy of SciencesBudapestHungary
- MTA‐SE Neuropsychopharmacology and Neurochemistry Research Group, Hungarian Academy of Sciences
- NAP‐A‐SE Research GroupSemmelweis UniversityBudapestHungary
| | - G. Hullam
- MTA‐SE Neuropsychopharmacology and Neurochemistry Research Group, Hungarian Academy of Sciences
- Department of Measurement and Information SystemsBudapest University of Technology and EconomicsBudapestHungary
- NAP‐A‐SE Research GroupSemmelweis UniversityBudapestHungary
| | - P. Antal
- Neuroscience and Psychiatry UnitThe University of Manchester and Manchester Academic Health Sciences CentreManchesterUnited Kingdom
- Department of Measurement and Information SystemsBudapest University of Technology and EconomicsBudapestHungary
- NAP‐A‐SE Research GroupSemmelweis UniversityBudapestHungary
| | - G. Kokonyei
- MTA‐SE‐NAP B Genetic Brain Imaging Migraine Research Group, Hungarian Academy of SciencesBudapestHungary
- Institute of PsychologyEötvös Loránd UniversityBudapestHungary
| | - I. M. Anderson
- Neuroscience and Psychiatry UnitThe University of Manchester and Manchester Academic Health Sciences CentreManchesterUnited Kingdom
| | - J. F. W. Deakin
- Neuroscience and Psychiatry UnitThe University of Manchester and Manchester Academic Health Sciences CentreManchesterUnited Kingdom
| | - G. Bagdy
- MTA‐SE‐NAP B Genetic Brain Imaging Migraine Research Group, Hungarian Academy of SciencesBudapestHungary
- Department of Pharmacodynamics, Faculty of PharmacySemmelweis UniversityBudapestHungary
- MTA‐SE Neuropsychopharmacology and Neurochemistry Research Group, Hungarian Academy of Sciences
- NAP‐A‐SE Research GroupSemmelweis UniversityBudapestHungary
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12
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Magyar M, Csépány É, Gyüre T, Bozsik G, Bereczki D, Ertsey C. [Tricyclic antidepressant therapy in headache]. Neuropsychopharmacol Hung 2015; 17:177-182. [PMID: 26727721] [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: 06/05/2023]
Abstract
The two most important representatives of the primary headaches are migraine and tension-type headache. More than 10% of the population suffer from migraine and even a greater part, approximately 30-40% from tension-type headache. These two headache types have a great effect both on the individual and on the society. There are two types of therapeutic approaches to headaches: the abortive and the prophylactic therapy. Prophylactic treatment is used for frequent and/or difficult-to-treat headache attacks. Although both migraine and tension-type headache are often associated with depression, for their treatment - in contrast to the widespread medical opinion - not all antidepressants were found to be effective. Amitriptyline, which is a tricyclic antidepressant, is used as a prophylactic therapy for headache since 1968. Its efficacy has been demonstrated in several double-blind, placebo-controlled studies. Although the newer types of antidepressant, such as selective serotonin reuptake inhibitors and selective serotonin-norepinephrine reuptake inhibitor, have a more favorable side-effect profile than tricyclic antidepressants, their headache prophylactic effect has not been proven yet.
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Affiliation(s)
- Máté Magyar
- Semmelweis University Szentágothai János Doctoral School of Neuroscience, Budapest, Hungary.
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13
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Csépány É, Magyar M, Gyüre T, Bozsik G, Ertsey C. [Current pharmacotherapy in migraine]. Neuropsychopharmacol Hung 2015; 17:169-176. [PMID: 26727720] [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: 06/05/2023]
Abstract
The exact pathomechanism of migraine is still unknown, currently there are no biomarkers for migraine diagnosis, and current animal models reflect only one aspect of migraine, therefore future migraine studies are necessary. The current treatment of migraine (both acute and preventive) is suboptimal. There are no specific preventive drugs for migraine, and current preventatives may become inefficient during long-term use. Triptans are useful abortive drugs, but not effective in some of the patients; severe cardio-or cerebrovascular side effects may occur. Triptans and ergot alkaloids (and also non-specific abortive agents) can cause medication overuse headache. A number of newly synthesized experimental drugs seem to be effective and promising for migraine therapy, but at present our experience with these is limited, therefore further studies are essential.
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Affiliation(s)
- Éva Csépány
- Semmelweis University Szentágothai János Doctoral School of Neuroscience, Budapest, Hungary.
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14
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Magyar M, Hajnal B, Gyüre T, Ertsey C. Fájdalomcsillapító-túlhasználathoz társuló fejfájás. Orv Hetil 2015; 156:1195-202. [DOI: 10.1556/650.2015.30209] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Medication-overuse headache affects 1 to 2 percent of the population. Any kind of painkiller, if taken regularly at least 10 days per month can cause medication-overuse headache, and therefore the possibility of this headache has to be raised whenever a patient with a preexistent headache notices a significant increase in headache frequency during a period of frequent painkiller consumption. Medication-overuse headache is most prevalent in females between 40 and 50 years of age. Its main risk factors are smokig, obesity, depression, and anxiety. The pathomechanism of medication-overuse headache is complex, with a probable genetic propensity and other biological (neurochemical and neurophysiological), as well as psychological and behavioural factors (such as anticipatory anxiety, catastrophisation of pain and consequentially a compulsive painkiller use) contributing to its genesis. The prerequisite of successful treatment is the withdrawal of the overused substance, other necessary elements of the therapy include the treatment of withdrawal symptoms including rebound headache, the introduction of an effective preventative therapy, taking into consideration the highly prevalent comorbid disorders as well, and the education and psychological support of patients. As the relapse rate can be as high as 30 to 40% regardless of effective treatment, the prevention of medication-overuse headache is of paramount importance, and the role of general practitioners can hardly be overstated. Orv. Hetil., 2015, 156(30), 1195–1202.
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Affiliation(s)
- Máté Magyar
- Neurológiai Klinika, Semmelweis Egyetem, Általános Orvostudományi Kar Budapest, Balassa u. 6., 1083
| | - Boglárka Hajnal
- Szentágothai János Idegtudományi Doktori Iskola, Semmelweis Egyetem Budapest
| | - Tamás Gyüre
- Szentágothai János Idegtudományi Doktori Iskola, Semmelweis Egyetem Budapest
| | - Csaba Ertsey
- Neurológiai Klinika, Semmelweis Egyetem, Általános Orvostudományi Kar Budapest, Balassa u. 6., 1083
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15
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Dejaco C, DeZordo T, Heber D, Lipp R, Lutfi A, Magyar M, Zauner D, Graninger W, Hermann J. THU0415 Increased rigidity of salivary glands as indicated by sonoelastography is associated with reduced saliva production in primary sjÖgren’s syndrome. Ann Rheum Dis 2013. [DOI: 10.1136/annrheumdis-2012-eular.2380] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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16
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Dejaco C, DeZordo T, Heber D, Lipp R, Lutfi A, Magyar M, Zauner D, Graninger W, Hermann J. SAT0395 Sonoelastography detects salivary gland dysfunction in patients with primary sjögren’s syndrome. Ann Rheum Dis 2013. [DOI: 10.1136/annrheumdis-2012-eular.3341] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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17
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Vollmann R, Lamperti M, Magyar M, Simbrunner J. Magnetic Resonance Imaging of the Spine in a Patient with Decompression Sickness. Clin Neuroradiol 2011; 21:231-3. [DOI: 10.1007/s00062-011-0053-x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2010] [Accepted: 01/04/2011] [Indexed: 11/28/2022]
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18
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Magyarlaki T, Matolcsy A, Nyitrai G, Mohai A, Kálmán E, Magyar M, Szelényi J. [T gamma-lymphoproliferative disease]. Orv Hetil 1990; 131:2489-94. [PMID: 2234944] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
The case of a rare type of T-cell malignant lymphomas, clinically with a relatively favorable course, a T gamma-lymphoproliferative disease (T gamma-cell chronic lymphocytic leukaemia) was presented. The cytomorphological, cytochemical, immuncytochemical and cytogenetical markers and functional tests of the peripheral blood lymphocytes from the patient were tested. The leukaemic cells with light- and electron microscopy showed the so called LGL (large granular lymphocyte) morphology with multifocal reactions of acid hydrolase enzymes. These cells also expressed IgG-Fc-receptor, CD 8 monoclonal antibody positivity and a monoclonally rearranged T-cell receptor gen expression. Functionally the patient's lymphocytes developed a blastic response to the T-cell mitogen Concanavalin A (ConA), they suppressed the immunoglobulin production of B-lymphocytes in co-cultures and had a normal NK-activity but decreased ADCC values. The patient was diagnosed by blood, bone marrow and lymph node examination and does not need any therapy. This case was published because of it's diagnostic, immunological and prognostical interests.
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Affiliation(s)
- T Magyarlaki
- Pécsi Orvostudományi Egyetem, Pathologiai Intézet, Budapest
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19
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Pálóczi K, Demeter J, Pócsik E, Mihalik R, Magyar M, Földi J, Szelényi J, Lehoczky D, Benczur M, Petrányi GG. Differentiation and activation antigens associated with hairy cell leukemia. Leukemia 1990; 4:694. [PMID: 1699089] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- K Pálóczi
- National Institute of Haematology and Blood Transfusion, Budapest, Hungary
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20
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Földi J, Kardos G, Király A, Magyar M, Mód A, Pálóczi K, Poros A, Révész T, Szandtner G, Szelényi J. [Gene rearrangement in leukemia]. Orv Hetil 1990; 131:919-22. [PMID: 2111901] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
In this report we summarize our experiences based on the gene rearrangement study of 111 leukaemic patients of different kind. The lymphocyte DNA of the patients was studied for rearrangement of the immunoglobulin light chain constant-, the heavy chain joining- and the T cell receptor beta chain constant region. Our data have well supplemented the results of the monoclonal antibody experiments. In 33 cases the DNA study was in good agreement with the immunological data. In 42 our data helped in gave different results, immunological results. In 11 cases evaluating the DNA and immunological data indicating the necessity of further investigation. The results were inconclusive in 25 cases. As a conclusion we consider the gene rearrangement study to be useful for diagnostic purposes.
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Affiliation(s)
- J Földi
- Országos Haematológiai és Vértranszfúziós Intézet, Budapest
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21
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Kopper L, Bánkfalvi A, Földi J, Mihalik R, Magyar M, Aczél A. Bigenotypic and biphenotypic appearance of immunoglobulin light chains in 1 of 3 non-Hodgkin's lymphoma xenografts. Oncology 1990; 47:393-7. [PMID: 2120650 DOI: 10.1159/000226855] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Chromosomal analysis of three human non-Hodgkin's lymphoma (NHL) xenografts revealed common extra 14q+ segment and other individual clonal markers without involvement of immunoglobulin light-chain regions. Two NHL xenografts (HT 58 and HT 130) showed restricted lambda light chain expression and deleted kappa and rearranged lambda genes. However, in HT 117 both kappa and lambda chains were present on the cell surface, and both light chain genes showed rearranged alleles. This unique phenomenon could have resulted from either disturbed regulation of isotype exclusion or from the malignant transformation of light chain 'uncommitted' B cells.
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Affiliation(s)
- L Kopper
- 1st Institute of Pathology and Experimental Cancer Research, Semmelweis Medical University, Budapest, Hungary
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Nikodemusz I, Dákay M, Magyar M, Kelemen A. [Hygienic-bacteriological examinations in station restaurants (author's transl)]. Zentralbl Bakteriol Mikrobiol Hyg B 1981; 174:471-6. [PMID: 7342573] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
In four station restaurants (West station, East station, South station, Kelenföld station) microbiological examinations were carried out in conjunction with the inspection of the hygienic conditions. The microflora of the washed and dried drinking glasses and plates as well as the smocks of the kitchen staff were examined. Intestinal bacteria, chromogenic bacteria and pathogenic staphylococci were found in numerous crockery samples. Therefore, it is necessary either to improve the effectiveness of the cleaning process or to prolong the drying of the crockery by heat. Numerous species, such as intestinal bacteria, chromogenic bacteria liable to cause food-decomposition were found in the kitchen staff's smocks, sometimes even in great quantities. To reliably determine the microbiological limit values for smocks and other textiles, a great number of examinations are still necessary. The smocks of the staff handling pre-cooked meals, cold meals or pastries must also be microbiologically clean.--The medical activity in the areas mentioned proved also beneficial to the training in hygiene.
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Kelemen GS, Magyar M. The role of alkalication in formation and decomposition of myosin-ATP complex. Biochim Biophys Acta 1975; 384:508-15. [PMID: 1125256 DOI: 10.1016/0005-2744(75)90052-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
The dependence of kinetic constants Km, V(k2) and k1 of myosin-ATPase on the species and concentration of alkali cations and on temperature was investigated. The value of Vvaries with the ionic radius of different alkali cations. The curve has a maximum at 1.33 A at the ionic radius of potassium. The detailed analysis of the cation dependence of the kinetics of the ATPose reaction shows that both formation and decomposition of the complex are affected by the cation present.
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Ozsváth K, Buda J, Pál T, Magyar M. [Psychometric study of factory workers at Pécs using self-characterization and complaint registration questionnaires]. Orv Hetil 1974; 115:737-40. [PMID: 4819648] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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Angyal J, Magyar M. [Psoriasis against the background of herpes zoster]. Orv Hetil 1974; 115:327-8. [PMID: 4839527] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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