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Horvath B, Khan MN, Hezso T, Dienes C, Kovacs Z, Kiss D, Prorok J, Arpadffy-Lovas T, Varga R, Fujii E, Topal L, Kistamas K, Varro A, Virag L. Is selective late sodium current inhibition different from class I/B antiarrhythmic action? Comparison of the effects of GS967 to mexiletine in canine ventricular myocardium. Europace 2021. [DOI: 10.1093/europace/euab116.571] [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: 11/12/2022] Open
Abstract
Abstract
Funding Acknowledgements
Type of funding sources: Public grant(s) – EU funding. Main funding source(s): National Research, Development and Innovation Office New National Excellence Programme
Enhancement of the late Na+ current (INa,late) increases arrhythmia propensity in the heart, while suppression of the current is antiarrhythmic. GS-458967 (GS) is an agent considered to be a selective blocker of INa,late. In the present study, effects of GS967 on INa,late, on L-type calcium current (ICaL), and on action potential (AP) morphology were studied in canine ventricular myocytes by using conventional voltage clamp, action potential voltage clamp and sharp microelectrode techniques. These effects of GS were compared to tetrodotoxin (TTX) and to the class I/B antiarrhythmic compound mexiletine.
GS (1 μM), mexiletine (40 μM) and TTX (10 μM) dissected largely similarly shaped inward currents under action potential voltage clamp conditions. In case of GS and mexiletine, the amplitude and integral of this inward current was significantly smaller when measured in the presence of 1 μM nisoldipine, while no difference was observed in case of TTX. Under conventional voltage clamp conditions, INa,late was significantly reduced by 1 μM GS and 40 μM mexiletine (about 79% and 63% reduction of current integrals, respectively). The integral of ICa,L was moderately but significantly decreased by both drugs (reduction of 9% and 14%, respectively). These changes were associated with a faster inactivation of ICa,L.
Drug effects on early Na+ current (INa,early) were assessed by analyzing the maximal rate of depolarization (V + max) in multicellular preparations. Both GS and mexiletine showed fast onset and offset kinetics: 110 ms and 289 ms offset time constants, respectively, as determined from V + max measurements in right ventricular papillary muscles, while the onset kinetics was characterized by 5.3 AP and 2.6 AP lengths, respectively, at 2.5 Hz.
Effects on beat-to-beat variability of AP duration (APD) was studied in isolated myocytes. Short-term variability was significantly decreased by both GS and mexiletine (average reduction of 42% and 24%, respectively) while they caused similar shortening of the APD.
The electrophysiological effects of GS are similar to those of mexiletine, but with a somewhat faster offset kinetics of V + max block. However, since GS reduced V+ max and INa,late in the same concentration, the currently accepted view that GS that selectively blocks INa,late has to be questioned and it is suggested that GS should be classified as a class I/B (or I/B + IV) antiarrhythmic agent.
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Affiliation(s)
- B Horvath
- University of Debrecen, Department of Physiology, Debrecen, Hungary
| | - MN Khan
- University of Szeged, Department of Pharmacology and Pharmacotherapy, Szeged, Hungary
| | - T Hezso
- University of Debrecen, Department of Physiology, Debrecen, Hungary
| | - C Dienes
- University of Debrecen, Department of Physiology, Debrecen, Hungary
| | - Z Kovacs
- University of Debrecen, Department of Physiology, Debrecen, Hungary
| | - D Kiss
- University of Debrecen, Department of Physiology, Debrecen, Hungary
| | - J Prorok
- University of Szeged, Department of Pharmacology and Pharmacotherapy, Szeged, Hungary
| | - T Arpadffy-Lovas
- University of Szeged, Department of Pharmacology and Pharmacotherapy, Szeged, Hungary
| | - R Varga
- University of Szeged, Department of Pharmacology and Pharmacotherapy, Szeged, Hungary
| | - E Fujii
- University of Debrecen, Department of Physiology, Debrecen, Hungary
| | - L Topal
- University of Szeged, Department of Pharmacology and Pharmacotherapy, Szeged, Hungary
| | - K Kistamas
- University of Debrecen, Department of Physiology, Debrecen, Hungary
| | - A Varro
- University of Szeged, Department of Pharmacology and Pharmacotherapy, Szeged, Hungary
| | - L Virag
- University of Szeged, Department of Pharmacology and Pharmacotherapy, Szeged, Hungary
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Jankásková J, Horváth ON, Varga R, Arenberger P, Schmidt E, Ruzicka T, Sárdy M. Increased sensitivity and high specificity of indirect immunofluorescence in detecting IgG subclasses for diagnosis of bullous pemphigoid. Clin Exp Dermatol 2018; 43:248-253. [DOI: 10.1111/ced.13371] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/15/2017] [Indexed: 11/27/2022]
Affiliation(s)
- J. Jankásková
- Department of Dermatology and Allergology; Ludwig Maximilian University; Munich Germany
- Department of Dermato-Venerology; Teaching Hospital Královské Vinohrady; Third Faculty of Medicine; Charles University in Prague; Prague Czech Republic
| | - O. N. Horváth
- Department of Dermatology and Allergology; Ludwig Maximilian University; Munich Germany
| | - R. Varga
- Department of Dermatology and Allergology; Ludwig Maximilian University; Munich Germany
| | - P. Arenberger
- Department of Dermato-Venerology; Teaching Hospital Královské Vinohrady; Third Faculty of Medicine; Charles University in Prague; Prague Czech Republic
| | - E. Schmidt
- Department of Dermatology, Allergology and Venerology; University of Lübeck; Lübeck Germany
- Lübeck Institute of Experimental Dermatology (LIED); University of Lübeck; Lübeck Germany
| | - T. Ruzicka
- Department of Dermatology and Allergology; Ludwig Maximilian University; Munich Germany
| | - M. Sárdy
- Department of Dermatology and Allergology; Ludwig Maximilian University; Munich Germany
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Jappe U, Minge S, Kreft B, Ludwig A, Przybilla B, Walker A, Varga R, Seidel P, Biedermann T, Anemüller W, Kromminga A, Ruëff F, Merk H, Wagner N, Treudler R, Worm M, Waldmann I, Saloga J, Becker WM, Goldmann T, Platts‐Mills TA, Homann A. Meat allergy associated with galactosyl-α-(1,3)-galactose (α-Gal)-Closing diagnostic gaps by anti-α-Gal IgE immune profiling. Allergy 2018; 73:93-105. [PMID: 28670695 DOI: 10.1111/all.13238] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/27/2017] [Indexed: 12/13/2022]
Abstract
BACKGROUND Glycoproteins and glycolipids of some mammalian species contain the disaccharide galactosyl-α-(1,3)-galactose (α-Gal). It is known that α-Gal is immunogenic in humans and causes glycan-specific IgG and also IgE responses with clinical relevance. α-Gal is part of the IgE-reactive monoclonal therapeutic antibody cetuximab (CTX) and is associated with delayed anaphylaxis to red meat. In this study, different α-Gal-containing analytes are examined in singleplex and multiplex assays to resolve individual sensitization patterns with IgE against α-Gal. METHODS Three serum groups, α-Gal-associated meat allergy (MA) patients, idiopathic anaphylaxis (IA) patients with suspected MA, and non-meat-allergic healthy control individuals (HC), were analyzed via singleplex allergy diagnostics and a newly established immunoblot diagnostic system. The new dot blot detection system resolved individual IgE sensitization profiles for α-Gal-containing analytes CTX, bovine thyroglobulin (Bos d TG), and human serum albumin (HSA)-conjugated α-Gal. RESULTS Singleplex allergy diagnostics using the α-Gal analytes CTX and Bos d TG confirms the history of MA patients in 91% and 88% of the cases, respectively. A novel dot blot-based assay system for the detection of IgE against α-Gal reveals individual IgE sensitization profiles for α-Gal-containing analytes. An α-Gal-associated IgE cross-reactivity profile (IgE against CTX, Bos d TG, and HSA-α-Gal) was identified, which is associated with MA. CONCLUSIONS Detection of individual sensitization patterns with different α-Gal-containing analytes provides the basis for an individual allergy diagnosis for α-Gal-sensitized patients. Higher amounts of α-Gal in pork and beef innards compared to muscle meat as indicated by a higher staining intensity are a plausible explanation for the difference in allergic symptom severity.
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Affiliation(s)
- U. Jappe
- Division of Clinical and Molecular Allergology Priority Research Area Asthma & Allergy Research Center Borstel Airway Research Center North (ARCN) Member of the German Center for Lung Research (DZL) Borstel Germany
- Interdisciplinary Allergy Division Department of Internal Medicine University of Lübeck Lübeck Germany
| | - S. Minge
- Division of Clinical and Molecular Allergology Priority Research Area Asthma & Allergy Research Center Borstel Airway Research Center North (ARCN) Member of the German Center for Lung Research (DZL) Borstel Germany
| | - B. Kreft
- Department of Dermatology and Venereology Martin‐Luther‐University Halle‐Wittenberg Halle (Saale) Germany
| | - A. Ludwig
- Department of Dermatology and Allergology Klinikum Augsburg Augsburg Germany
| | - B. Przybilla
- Department of Dermatology Ludwig‐Maximilians University Munich Germany
| | - A. Walker
- Department of Dermatology Ludwig‐Maximilians University Munich Germany
| | - R. Varga
- Department of Dermatology Ludwig‐Maximilians University Munich Germany
| | - P. Seidel
- Department of Dermatology University of Tübingen Tübingen Germany
| | - T. Biedermann
- Department of Dermatology University of Tübingen Tübingen Germany
- Department of Dermatology and Allergology Technical University of Munich Munich Germany
| | - W. Anemüller
- Department of Dermatology University of Lübeck Lübeck Germany
| | | | - F. Ruëff
- Department of Dermatology Ludwig‐Maximilians University Munich Germany
| | - H. Merk
- Department of Dermatology RWTH Aachen University Aachen Germany
| | - N. Wagner
- Department of Dermatology Klinikum Darmstadt Germany
| | - R. Treudler
- Department of Dermatology, Venereology and Allergology University of Leipzig Leipzig Germany
| | - M. Worm
- Department of Dermatology and Allergy Allergy Center Charité Berlin Germany
| | - I. Waldmann
- Dermatology & Allergology St. Bernward Klinik Hildesheim Germany
| | - J. Saloga
- Department of Dermatology University of Mainz Mainz Germany
| | - W. M. Becker
- Division of Clinical and Molecular Allergology Priority Research Area Asthma & Allergy Research Center Borstel Airway Research Center North (ARCN) Member of the German Center for Lung Research (DZL) Borstel Germany
| | - T. Goldmann
- Pathology of the University Medical Center Schleswig‐Holstein (UKSH) Campus Lübeck and Research Center Borstel Airway Research Center North (ARCN) Member of the German Center for Lung Research (DZL) Borstel Germany
| | - T. A. Platts‐Mills
- University of Virginia Asthma and Allergic Diseases Center Charlottesville USA
| | - A. Homann
- Division of Clinical and Molecular Allergology Priority Research Area Asthma & Allergy Research Center Borstel Airway Research Center North (ARCN) Member of the German Center for Lung Research (DZL) Borstel Germany
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Puchner SE, Varga R, Hobusch GM, Kasparek M, Panotopoulos J, Lang S, Windhager R, Funovics PT. Long-term outcome following treatment of Adamantinoma and Osteofibrous dysplasia of long bones. Orthop Traumatol Surg Res 2016; 102:925-932. [PMID: 27745864 DOI: 10.1016/j.otsr.2016.08.010] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [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: 12/30/2015] [Revised: 08/03/2016] [Accepted: 08/23/2016] [Indexed: 02/02/2023]
Abstract
INTRODUCTION Adamantinoma (AD) is an ultimately rare, low-grade malignant bone tumor. In most cases it occurs in the tibia of young adults. Osteofibrous dysplasia (OFD) is a rare, benign, lesion that is typically seen in children. Histopathology, ultrastructure, and cytogenetics indicate that these lesions are closely related. Yet, etiology remains a matter of debate. Local recurrence rates are high for both entities as published in literature and long-term outcomes are scarce, due to the rarity of the disease. HYPOTHESIS AD should be treated by En-Bloc resection while ODF can be treated by curettage or by observation. Consequently, the aim of the present study was to answer following questions: Were local recurrence rates of both entities different based on a retrospective review within a tertiary referral center for orthopedic oncology? MATERIAL AND METHODS In a retrospective cohort study, 10 patients with AD and 5 patients with OFD (including 1 patient with OFD-like-AD) were reviewed. Primary surgeries for patients with AD were: En-bloc resection in 7, curettage in 2 and amputation in 1. In the OFD group, only 2 patients underwent surgery by curettage. Mean follow-up was 16 years (range: 2-47 years). Nine patients had a minimum follow-up of 10 years (mean: 23 years; range: 10-47 years). RESULTS Four patients with AD (40%) and 2 patients with OFD (40%) - all of them following surgical removal - suffered from local recurrence. In the "En bloc" resection group of AD, there were 2 LR (29%). All patients of both groups treated with curettage showed LR. One patient with AD had metastasis at time of diagnosis and died of disease. Another patient with AD was diagnosed with metastasis 67 months after surgery and was still alive with disease at latest follow-up (77 month). DISCUSSION The overall prognosis of AD and OFD is good, yet local recurrence rates are high, irrespective of surgical strategy. While an internationally standardized treatment regime is still missing, a more radical surgical approach should be considered, especially when treating AD. LEVEL OF EVIDENCE Retrospective study; Level IV.
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Affiliation(s)
- S E Puchner
- Department of Orthopedics, Medical University of Vienna, Waehringer Guertel 18-20, 1090 Vienna, Austria.
| | - R Varga
- Department of Orthopedics, Medical University of Vienna, Waehringer Guertel 18-20, 1090 Vienna, Austria
| | - G M Hobusch
- Department of Orthopedics, Medical University of Vienna, Waehringer Guertel 18-20, 1090 Vienna, Austria
| | - M Kasparek
- Department of Orthopedics, Medical University of Vienna, Waehringer Guertel 18-20, 1090 Vienna, Austria
| | - J Panotopoulos
- Department of Orthopedics, Medical University of Vienna, Waehringer Guertel 18-20, 1090 Vienna, Austria
| | - S Lang
- Department of Pathology, Medical University of Vienna, Waehringer Guertel 18-20, 1090 Vienna, Austria
| | - R Windhager
- Department of Orthopedics, Medical University of Vienna, Waehringer Guertel 18-20, 1090 Vienna, Austria
| | - P T Funovics
- Department of Orthopedics, Medical University of Vienna, Waehringer Guertel 18-20, 1090 Vienna, Austria
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Reinholz M, Eder I, Przybilla B, Schauber J, Wollenberg A, Wulffen W, Goldscheider I, Varga R, Ruzicka T, Schaumann A, Ruëff F. Photoallergic contact dermatitis due to treatment of pulmonary fibrosis with pirfenidone. J Eur Acad Dermatol Venereol 2014; 30:370-1. [DOI: 10.1111/jdv.12794] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- M. Reinholz
- Department of Dermatology and Allergy; Ludwig-Maximilian University; Munich Germany
| | - I. Eder
- Department of Dermatology and Allergy; Ludwig-Maximilian University; Munich Germany
| | - B. Przybilla
- Department of Dermatology and Allergy; Ludwig-Maximilian University; Munich Germany
| | - J. Schauber
- Department of Dermatology and Allergy; Ludwig-Maximilian University; Munich Germany
| | - A. Wollenberg
- Department of Dermatology and Allergy; Ludwig-Maximilian University; Munich Germany
| | - W. Wulffen
- Department of Medicine V; Ludwig-Maximilian University; Munich Germany
| | - I. Goldscheider
- Department of Dermatology and Allergy; Ludwig-Maximilian University; Munich Germany
| | - R. Varga
- Department of Dermatology and Allergy; Ludwig-Maximilian University; Munich Germany
| | - T. Ruzicka
- Department of Dermatology and Allergy; Ludwig-Maximilian University; Munich Germany
| | | | - F. Ruëff
- Department of Dermatology and Allergy; Ludwig-Maximilian University; Munich Germany
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Klein P, Varga R, Badini Confalonieri GA, Vazquez M. Domain wall dynamics in amorphous and nanocrystalline FeCoMoB microwires. J Nanosci Nanotechnol 2012; 12:7464-7467. [PMID: 23035496 DOI: 10.1166/jnn.2012.6526] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
We have studied the domain wall dynamics in amorphous and nanocrystalline FeCoMoB microwires. The domain wall propagation velocity has been found very fast (up to 5000 m/s) for the as-cast sample. Annealing at 575 K/1 h leads to the stress relief and sample homogenization and the domain wall velocity even increases to 5300 m/s. However, the domain wall dynamics is highly sensible to the temperature of a measurement. Annealing at 775 K/1 h leads to the appearance of the nanocrystalline structure with much higher temperature stability. The maximum domain wall velocity decreases (2800 m/s), however the domain wall dynamics is much stable with the temperature.
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Affiliation(s)
- P Klein
- Institute of Physics, Faculty of Science, UPJS, Park Angelinum 9, 04154 Kosice, Slovakia
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Richter K, Varga R, Zhukov A. Influence of the magnetoelastic anisotropy on the domain wall dynamics in bistable amorphous wires. J Phys Condens Matter 2012; 24:296003. [PMID: 22738886 DOI: 10.1088/0953-8984/24/29/296003] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
We deal with the influence of the applied stress on the domain wall velocity in glass-coated magnetic microwires. In general, the domain wall velocity decreases with the applied tensile stress. Four regimes of the domain wall dynamics appear: (1) diffusion-damped, (2) a regime with variable domain wall width, (3) a viscous and (4) a vortex regime. Detailed analysis of domain wall parameters shows that the structural relaxation plays an important role even at ambient temperatures if high tensile stress is present. At higher fields (viscous regime), the most important damping arises from magnetic relaxation of magnetic moments. Finally, the domain wall velocity steeply increases (reaching a maximum at 7000 m s(-1)) in the vortex regime and so does the domain wall mobility.
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Affiliation(s)
- K Richter
- Institute of Physics, P J Safarik University, Park Angelinum 9, 041 54 Kosice, Slovakia
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Bajory Z, Szabo A, Deak G, Varga R, Pajor L. Orthogonal Polarization Spectral Imaging: A Novel Tool for Examination of Microcirculatory Changes in the Testis. ACTA ACUST UNITED AC 2011; 33:499-504. [DOI: 10.2164/jandrol.111.013599] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Hemmer W, Jarisch R, Wieczorek D, Kapp A, Wedi B, Müller U, Schmid-Grendelmeier P, Hausmann O, Helbling A, Varga R, Stretz E, Rolle M, Przybilla B, Ruëff F, Krischan L, Schneider M, Sonnenschein U, Darsow U, Ring J, Eberlein B, Friedl TK, Garaganova J, Arnold A. Klinische In-vitro-Diagnostik. Allergo J 2011. [DOI: 10.1007/bf03362489] [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: 10/21/2022]
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Eberlein-König B, Varga R, Mempel M, Darsow U, Behrendt H, Ring J. Comparison of basophil activation tests using CD63 or CD203c expression in patients with insect venom allergy. Allergy 2006; 61:1084-5. [PMID: 16918511 DOI: 10.1111/j.1398-9995.2006.01122.x] [Citation(s) in RCA: 57] [Impact Index Per Article: 3.2] [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: 11/28/2022]
Abstract
BACKGROUND Flow cytometric basophil activation tests have been developed as cellular tests for in vitro diagnosis of IgE-mediated reactions. Different activation markers (CD63 or CD203c) with distinct ways of regulation have been used after stimulation with various allergens. OBJECTIVE It was the aim of the present study to compare basophil activation tests by measuring both CD63 and CD203c upregulation in patients with insect venom allergy. MATERIALS AND METHODS 43 patients with a history of insect venom anaphylaxis were examined. A careful allergy history was taken, and skin tests and determination of specific IgE-antibodies were performed. Basophil activation tests (BAT) using CD63 or CD203c expression were done after stimulation with different concentrations of bee and wasp venom extracts. 25 healthy subjects with negative history of insect venom allergy were studied as controls. RESULTS The CD203c protocol showed a slightly higher sensitivity than the CD63 protocol (97% vs. 89%) with regard to patients' history. The magnitude of basophil response was higher with CD203c in comparison to CD63 for both insect venoms. Specificity was 100% for the CD63 protocol and 89% for the CD203c protocol with regard to controls with negative history and negative RAST. CONCLUSION These results support the reliability of basophil activation tests using either CD63 or CD203c as cellular tests in the in vitro diagnosis of patients with bee or wasp venom allergy with a slightly higher sensitivity for the CD203c protocol.
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Affiliation(s)
- B Eberlein-König
- Department of Dermatology and Allergy Biederstein, Technical University Munich, Munich, Germany
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11
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Varga R, Avenarius MR, Kelley PM, Keats BJ, Berlin CI, Hood LJ, Morlet TG, Brashears SM, Starr A, Cohn ES, Smith RJH, Kimberling WJ. OTOF mutations revealed by genetic analysis of hearing loss families including a potential temperature sensitive auditory neuropathy allele. J Med Genet 2005; 43:576-81. [PMID: 16371502 PMCID: PMC2593030 DOI: 10.1136/jmg.2005.038612] [Citation(s) in RCA: 107] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
INTRODUCTION The majority of hearing loss in children can be accounted for by genetic causes. Non-syndromic hearing loss accounts for 80% of genetic hearing loss in children, with mutations in DFNB1/GJB2 being by far the most common cause. Among the second tier genetic causes of hearing loss in children are mutations in the DFNB9/OTOF gene. METHODS In total, 65 recessive non-syndromic hearing loss families were screened by genotyping for association with the DFNB9/OTOF gene. Families with genotypes consistent with linkage or uninformative for linkage to this gene region were further screened for mutations in the 48 known coding exons of otoferlin. RESULTS Eight OTOF pathological variants were discovered in six families. Of these, Q829X was found in two families. We also noted 23 other coding variant, believed to have no pathology. A previously published missense allele I515T was found in the heterozygous state in an individual who was observed to be temperature sensitive for the auditory neuropathy phenotype. CONCLUSIONS Mutations in OTOF cause both profound hearing loss and a type of hearing loss where otoacoustic emissions are spared called auditory neuropathy.
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Affiliation(s)
- R Varga
- Center for Hereditary Communication Disorders, Boys Town National Research Hospital (BTNRH), Omaha, NE, USA
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Varga R, Garcia KL, Vázquez M, Vojtanik P. Single-domain wall propagation and damping mechanism during magnetic switching of bistable amorphous microwires. Phys Rev Lett 2005; 94:017201. [PMID: 15698124 DOI: 10.1103/physrevlett.94.017201] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/16/2004] [Indexed: 05/24/2023]
Abstract
The mechanism of nucleation and propagation of a single-domain wall is studied as a function of temperature in bistable Fe-based amorphous microwire with a unique simple domain structure. An extended nucleation-propagation model is proposed with a negative nucleation field. From quantitative analysis of the propagating wall characteristics, a new damping is theoretically introduced as arising from structural relaxation which dominates in the low temperature regime.
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Affiliation(s)
- R Varga
- Instituto de Ciencia de Materiales, CSIC, 28049 Madrid, Spain
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Varga R, Kelley PM, Keats BJ, Starr A, Leal SM, Cohn E, Kimberling WJ. Non-syndromic recessive auditory neuropathy is the result of mutations in the otoferlin (OTOF) gene. J Med Genet 2003; 40:45-50. [PMID: 12525542 PMCID: PMC1735255 DOI: 10.1136/jmg.40.1.45] [Citation(s) in RCA: 178] [Impact Index Per Article: 8.5] [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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Schmidt P, Szilagyi I, Ecsi M, Varga R. [Preliminary experiences in the prevention of rickets with reduced vitamin D doses]. Kinderarztl Prax 1988; 56:179-82. [PMID: 2842538] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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Borbély L, Varga R, Danysz J, Kacinec J, Horský A, Dermeková A. [Socio-economic aspects of mothers' satisfaction with the rooming-in system and its effectiveness within the therapeutic and preventive health care system]. Cesk Zdrav 1986; 34:486-92. [PMID: 3779879] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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Borbély L, Varga R, Danysz J, Horský A, Lorenz E. [Gynecologico-psychologic aspects of artificial menopause]. Cesk Gynekol 1986; 51:540-3. [PMID: 3757081] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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