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Ebner A, Wildling L, Gruber HJ. Functionalization of AFM Tips and Supports for Molecular Recognition Force Spectroscopy and Recognition Imaging. Methods Mol Biol 2019; 1886:117-151. [PMID: 30374865 DOI: 10.1007/978-1-4939-8894-5_7] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [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: 01/20/2023]
Abstract
Linking of sensor molecules (e.g., antibodies) to an AFM tip converts it into a biosensor by which single target molecules (e.g., antigens) can be detected and localized on the sample surface. Moreover, the mechanism of interaction can be studied by force spectroscopy if purified target molecules are linked to an ultra-flat surface, such as mica or silicon (nitride). Rapid imaging of the binding sites and force spectroscopy studies are greatly facilitated if 6-10 nm long polyethylene glycol (PEG) chains are used as flexible tethers between the sensor molecule and the tip. Here, we describe a set of methods by which a variety of proteins, oligonucleotides, or small molecules can be tethered to silicon (nitride) tips or to mica. Methods are included which afford site-specific and oriented coupling of the sensor molecules.
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Affiliation(s)
- A Ebner
- Institute of Biophysics, Johannes Kepler University Linz, Linz, Austria
| | - L Wildling
- Institute of Biophysics, Johannes Kepler University Linz, Linz, Austria
| | - H J Gruber
- Institute of Biophysics, Johannes Kepler University Linz, Linz, Austria.
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Nau T, Teuschi A, Ebner A, Jung I, Schenk C. Low revision rate and excellent subjective outcome of primary ACL repair with a minimum follow-up of 5 years. Muscles Ligaments Tendons J 2019. [DOI: 10.32098/mltj.02.2018.07] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- T. Nau
- Sanatorium Dr. Schenk GmbH, Schruns, Austria
- Ludwig Boltzmann Institute of Experimental and Clinical Traumatology, AUVA Research Center, Vienna, Austria
- The Austrian Cluster for Tissue Regeneration, Vienna, Austria
| | - A. Teuschi
- Ludwig Boltzmann Institute of Experimental and Clinical Traumatology, AUVA Research Center, Vienna, Austria
- University of Allied Sciences, Technikum Wien, Department of Chemical Engineering, Vienna, Austria
- The Austrian Cluster for Tissue Regeneration, Vienna, Austria
| | - A. Ebner
- Sanatorium Dr. Schenk GmbH, Schruns, Austria
| | - I. Jung
- Ludwig Boltzmann Institute of Experimental and Clinical Traumatology, AUVA Research Center, Vienna, Austria
| | - C. Schenk
- Sanatorium Dr. Schenk GmbH, Schruns, Austria
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Crozier I, Daly MG, Al Ahmad A, Natale A, Ebner A, Neuzil P, Lee R, Badhwar N, Lee BK, Melton I, Reddy V. 1156Early feasibility results evaluating a multi-electrode radiofrequency ablation balloon catheter system in patients with symptomatic paroxysmal atrial fibrillation. Europace 2017. [DOI: 10.1093/ehjci/eux152.004] [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: 11/14/2022] Open
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Lamprecht C, Plochberger B, Ruprecht V, Wieser S, Rankl C, Heister E, Unterauer B, Brameshuber M, Danzberger J, Lukanov P, Flahaut E, Schütz G, Hinterdorfer P, Ebner A. A single-molecule approach to explore binding, uptake and transport of cancer cell targeting nanotubes. Nanotechnology 2014; 25:125704. [PMID: 24577143 DOI: 10.1088/0957-4484/25/12/125704] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
In the past decade carbon nanotubes (CNTs) have been widely studied as a potential drug-delivery system, especially with functionality for cellular targeting. Yet, little is known about the actual process of docking to cell receptors and transport dynamics after internalization. Here we performed single-particle studies of folic acid (FA) mediated CNT binding to human carcinoma cells and their transport inside the cytosol. In particular, we employed molecular recognition force spectroscopy, an atomic force microscopy based method, to visualize and quantify docking of FA functionalized CNTs to FA binding receptors in terms of binding probability and binding force. We then traced individual fluorescently labeled, FA functionalized CNTs after specific uptake, and created a dynamic 'roadmap' that clearly showed trajectories of directed diffusion and areas of nanotube confinement in the cytosol. Our results demonstrate the potential of a single-molecule approach for investigation of drug-delivery vehicles and their targeting capacity.
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Affiliation(s)
- C Lamprecht
- Institute of Biophysics, Johannes Kepler University, A-4020 Linz, Austria. Institute of Materials Science, Christian-Albrechts-University of Kiel, D-24114 Kiel, Germany
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Ebner A, Wilbring M, Poitz D, Alexiou K, Deussen A. Smooth muscle cell derived adiponectin and its role in storage induced vascular dysfunction. Thorac Cardiovasc Surg 2014. [DOI: 10.1055/s-0034-1367390] [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: 10/25/2022]
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Helmstaedter C, May TW, von Lehe M, Pfaefflin M, Ebner A, Pannek HW, Elger CE, Stefan H, Schramm J. Temporal lobe surgery in Germany from 1988 to 2008: diverse trends in etiological subgroups. Eur J Neurol 2013; 21:827-34. [PMID: 24313982 DOI: 10.1111/ene.12322] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.0] [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: 07/03/2013] [Accepted: 10/21/2013] [Indexed: 12/13/2022]
Abstract
BACKGROUND AND PURPOSE In the epilepsy community, there is talk that the number of classical patients with early onset temporal lobe epilepsy (TLE) and Ammon's horn sclerosis (AHS) is decreasing. This is counterintuitive, considering the success story of epilepsy surgery, improved diagnostic methods and the current recommendation of early admission to surgery. In order to recognize trends, the development of temporal lobe surgery over 20 years in three major German epilepsy centers was reviewed. METHODS Age at surgery and duration of epilepsy, which was differentiated according to histopathology (AHS, developmental, tumor, vascular), year of surgery and center, were evaluated in a cohort of 2812 patients from three German epilepsy centers who underwent temporal lobe surgery between 1988 and 2008. The analysis was carried out for the pooled cohort as well as for each center separately. RESULTS Of all patients, 52% showed AHS. Compared with other pathologies, the AHS group had the earliest epilepsy onset and the longest duration of epilepsy. Across five time epochs, the diagnosis of AHS increased in the first epoch, remaining constant thereafter. Contrary to the trends in other pathologies, in the AHS group the mean age of patients at surgery increased by 7 years and the duration of epilepsy until surgery increased by 5 years. This trend could be replicated in all three centers. As initially hypothesized for all groups, age and duration of epilepsy in other pathology groups remained constant or indicated earlier submission to surgery. CONCLUSIONS During the first few years studied, most probably due to progress in brain imaging, the proportion of patients with AHS increased. However, despite stable numbers over time, and contrary to the trends in other pathology groups, age and duration of epilepsy in mesial TLE with AHS (mTLE + AHS) increased over time. This supports the hypothesis of a decreasing incidence of AHS. This trend is discussed with respect to disease-modifying factors which have changed the incidence of classical mTLE + AHS or, alternatively, to recent developments in antiepileptic drug treatment, the appraisal of surgery and economic incentives for treatment options other than surgery.
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Ebner A, Steinbronn N, Mitschke J, Poitz DM, Ebner B, Strasser RH, Wunderlich C. Can moderate training reverse hypertrophic cardiomyopathy in a mouse model of vascular dysfunctional eNOS? Eur Heart J 2013. [DOI: 10.1093/eurheartj/eht310.p5042] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Coentrao L, Ribeiro C, Santos-Araujo C, Neto R, Pestana M, Rahman E, Rahman H, Ahmed D, Mousa D, El Bishlawi M, Shibahara H, Shibahara N, Takahashi S, Dupuis E, Duval X, Dornic Q, Bonnal C, Lucet JC, Cerceau O, Randoux C, Balde C, Besson F, Mentre F, Vrtovsnik F, Koutroubas G, Malindretos P, Zagotsis G, Makri P, Syrganis C, Mambelli E, Mancini E, Elia C, Guadagno V, Facchini MG, Zucchelli A, Grazia M, Patregnani L, Santoro A, Stefan G, Stefan G, Stancu S, Capusa C, Ailioaiei OR, Mircescu G, Anwar S, Little C, Kingston R, Diwakar P, Kaikini R, Syrganis C, Koutroubas G, Zagotsis G, Malindretos P, Makri P, Nikolaou E, Loukas G, Sabry A, Alsaran K, Al Sherbeiny S, Abdulkader M, Kwak I, Song S, Seong E, Lee S, Lee D, Kim I, Rhee H, Silva F, Queiros J, Malheiro J, Cabrita A, Rocha A, Bamidis P, Bamidis P, Liaskos C, Chryssogonidis I, Frantzidis C, Papagiannis A, Vrochides D, Lasaridis A, Nikolaidis P, Malindretos P, Kotwal S, Muir C, Hawley C, Snelling P, Gallagher M, Jardine M, Shibata K, Shibata K, Toya Y, Umemura S, Iwamoto T, Ono S, Ikeda E, Kitazawa A, Kuji T, Koguchi N, Satta H, Nishihara M, Kawata S, Kaneda T, Yamada Y, Murakami T, Yanagi M, Yasuda G, Mathieu S, Yves D, Jean-Michel T, Nicolas Q, Jean-Francois C, Ibrahim M, Abdel Salam M, Awadalla A, Bichari W, Zaki S, Roca-Tey R, Samon R, Ibrik O, Roda A, Gonzalez-Oliva JC, Martinez-Cercos R, Viladoms J, Lin CC, Yang WC, Kim YO, Yoon SA, Yun YS, Song HC, Kim BS, Cheong MA, Ogawa T, Kiba T, Okazaki S, Hatano M, Iwanaga M, Noiri C, Matsuda A, Hasegawa H, Mitarai T, DI Napoli A, DI Lallo D, Tazza L, De Cicco C, Salvatori MF, Chicca S, Guasticchi G, Gelev S, Trajceska L, Srbinovska E, Pavleska S, Oncevski A, Dejanov P, Gerasomovska V, Selim G, Sikole A, Wilson S, Mayne T, Krishnan M, Holland J, Volz A, Good L, Nissenson A, Stavroulopoulos A, Aresti V, Maragkakis G, Kyriakides S, Rikker C, Rikker C, Juhasz E, Tornoci L, Tovarosi S, Greguschik J, Mag O, Rosivall L, Golebiowski T, Golebiowski T, Watorek E, Kusztal M, Letachowicz K, Letachowicz W, Madziarska K, Augustyniak Bartosik H, Krajewska M, Weyde W, Klinger M, Capitanini A, Lange S, Cupisti A, Schier T, Gobel G, Bosmuller C, Gruber I, Tiefenthaler M, Shipley T, Adam J, Sweeney D, Fenwick S, Mansy H, Ahmed S, Moore I, Iwamoto T, Shibata K, Yasuda G, Kaneda T, Murakami T, Kuji T, Koguchi N, Satta H, Nishihara M, Kawata S, Yanagi M, Yamada Y, Ono S, Ikeda E, Kitazawa A, Toya Y, Umemura S, Vigeral P, Saksi S, Flamant M, Boulanger H, Kim YO, Yoon SA, Yun YS, Song HC, Kim BS, Park WD, Cheong MA, Nikam M, Tavakoli A, Chemla E, Evans J, Malete H, Matyas L, Mogan I, Lazarides M, Ebner A, Shi Y, Shi Y, Zhang J, Cheng J, Frank LR, Melanie H, Dominique B, Michel G, Ikeda K, Yasuda T, Yotueda H, Nikam M, Ebah L, Jayanti A, Evans J, Kanigicherla D, Summers A, Manley G, Dutton G, Chalmers N, Mitra S, Checherita IA, Niculae A, Radulescu D, David C, Turcu FL, Ciocalteu A, Persic V, Persic V, Buturovic-Ponikvar J, Ponikvar R, Touam M, Touam M, Menoyo V, Drueke T, Rifaat M, Muresan C, Abtahi M, Koochakipour Z, Joly D, Baharani J, Rizvi S, Ng KP, Buzzi L, Sarcina C, Alberghini E, Ferrario F, Baragetti I, Santagostino G, Furiani S, Corghi E, Sarcina C, Terraneo V, Rastelli F, Bacchini G, Pozzi C, Adorati Menegato M, Mortellaro R, Locicero A, Romano A, Manzini PP, Steckiph D, Shintaku S, Kawanishi H, Moriishi M, Bansyodani M, Nakamura S, Saito M, Tsuchiya S, Barros F, Vaz R, Carvalho B, Neto R, Martins P, Pestana M, Likaj E, Likaj E, Seferi S, Rroji M, Idrizi A, Duraku A, Barbullushi M, Thereska N, Shintaku S, Kawanishi H, Moriishi M, Bansyodani M, Nakamura S, Saito M, Tsuchiya S. Vascular access. Nephrol Dial Transplant 2012. [DOI: 10.1093/ndt/gfs226] [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: 11/12/2022] Open
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Lamprecht C, Gierlinger N, Heister E, Unterauer B, Plochberger B, Brameshuber M, Hinterdorfer P, Hild S, Ebner A. Mapping the intracellular distribution of carbon nanotubes after targeted delivery to carcinoma cells using confocal Raman imaging as a label-free technique. J Phys Condens Matter 2012; 24:164206. [PMID: 22466107 DOI: 10.1088/0953-8984/24/16/164206] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
The uptake of carbon nanotubes (CNTs) by mammalian cells and their distribution within cells is being widely studied in recent years due to their increasing use for biomedical purposes. The two main imaging techniques used are confocal fluorescence microscopy and transmission electron microscopy (TEM). The former, however, requires labeling of the CNTs with fluorescent dyes, while the latter is a work-intensive technique that is unsuitable for in situ bio-imaging. Raman spectroscopy, on the other hand, presents a direct, straightforward and label-free alternative. Confocal Raman microscopy can be used to image the CNTs inside cells, exploiting the strong Raman signal connected to different vibrational modes of the nanotubes. In addition, cellular components, such as the endoplasmic reticulum and the nucleus, can be mapped. We first validate our method by showing that only when using the CNTs' G band for intracellular mapping accurate results can be obtained, as mapping of the radial breathing mode (RBM) only shows a small fraction of CNTs. We then take a closer look at the exact localization of the nanotubes inside cells after folate receptor-mediated endocytosis and show that, after 8-10 h incubation, the majority of CNTs are localized around the nucleus. In summary, Raman imaging has enormous potential for imaging CNTs inside cells, which is yet to be fully realized.
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Affiliation(s)
- C Lamprecht
- Institute of Biophysics, J Kepler University, Linz, Austria.
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Ebner A, Poitz D, Augstein A, Wilbring M, Matschke K, Deussen A. Early storage-induced vascular alterations on molecular level. Thorac Cardiovasc Surg 2012. [DOI: 10.1055/s-0031-1297554] [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: 10/14/2022]
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Wilbring M, Ebner A, Schönemann K, Tugtekin SM, Zatschler B, Plötze K, Waldow T, Matschke K, Deussen A. Heparinized blood is superior to isotonic sodium-chloride-solution for intraoperative short-time storage of saphenous vein grafts. Thorac Cardiovasc Surg 2012. [DOI: 10.1055/s-0031-1297553] [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: 10/14/2022]
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Schönemann K, Ebner A, Zatschler B, Wilbring M, Ploetze K, Tugtekin SM, Waldow T, Matschke K, Deussen A. A recently developed potassium-chloride and n-acetylhistidine enriched storage solution is superior to isotonic sodium-chloride-solution for intraoperative short-time storage of saphenous vein grafts. Thorac Cardiovasc Surg 2012. [DOI: 10.1055/s-0031-1297841] [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: 10/14/2022]
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Wilbring M, Tugtekin S, Reichenspurner H, Ebner A, Zatschler B, Deussen A, Matschke K. Preservation of endothelial vascular function of saphenous vein grafts after long time storage with a recently developed potassium-chloride and N-acetylhistidine enriched storage solution. Thorac Cardiovasc Surg 2011. [DOI: 10.1055/s-0030-1268975] [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: 10/18/2022]
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Haberlandt E, Bast T, Ebner A, Holthausen H, Kluger G, Kravljanac R, Kröll-Seger J, Kurlemann G, Makowski C, Rostasy K, Tuschen-Hofstätter E, Weber G, Vincent A, Bien CG. Limbic encephalitis in children and adolescents. Arch Dis Child 2011; 96:186-91. [PMID: 20959359 DOI: 10.1136/adc.2010.183897] [Citation(s) in RCA: 111] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
OBJECTIVE Limbic encephalitis is rare in people <18 years of age and rarely given a formal diagnosis. DESIGN Retrospective study on presentation and outcome of children and adolescents with the clinico-radiological syndrome of limbic encephalitis tested for specific neuronal autoantibodies (Abs) over 3.5 years. SETTING Assessment, diagnosis, treatment and follow-up at 12 neuropaediatric and neurological departments in Europe, with Abs determined in Bonn, Germany and Oxford, UK. PATIENTS Ten patients <18 years of age who presented with a disorder mainly affecting the limbic areas of <5 years' duration with MRI evidence of mediotemporal encephalitis (hyperintense T2/FLAIR signal, resolving over time). RESULTS Median age at disease onset was 14 years (range 3-17). Eight patients had defined Abs: one each with Hu or Ma1/2 Abs, four with high titre glutamic acid decarboxylase (GAD) Abs, two of whom had low voltage-gated potassium channel (VGKC) Abs and two with only low titre VGKC Abs. A tumour was only found in the patient with Hu Abs (a neuroblastoma). After a median follow-up of 15 months with corticosteroid or intravenous immunoglobulin treatment, starting after a median of 4 months, two patients recovered, eight remained impaired and one died. CONCLUSIONS Limbic encephalitis is a disease that can occur in childhood or adolescence with many of the hallmarks of the adult disorder, suggesting that both result from similar pathogenic processes. Since most of the cases were non-paraneoplastic, as now also recognised in adults, more systematic and aggressive immunotherapies should be evaluated in order to improve outcomes.
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Affiliation(s)
- E Haberlandt
- Medical University of Innsbruck, Clinical Department of Pediatrics IV, Division of Neuropediatrics and Inherited Metabolic Diseases, Innsbruck, Austria
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Duman M, Pfleger M, Zhu R, Rankl C, Chtcheglova LA, Neundlinger I, Bozna BL, Mayer B, Salio M, Shepherd D, Polzella P, Moertelmaier M, Kada G, Ebner A, Dieudonne M, Schütz GJ, Cerundolo V, Kienberger F, Hinterdorfer P. Improved localization of cellular membrane receptors using combined fluorescence microscopy and simultaneous topography and recognition imaging. Nanotechnology 2010; 21:115504. [PMID: 20173232 DOI: 10.1088/0957-4484/21/11/115504] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
The combination of fluorescence microscopy and atomic force microscopy has a great potential in single-molecule-detection applications, overcoming many of the limitations coming from each individual technique. Here we present a new platform of combined fluorescence and simultaneous topography and recognition imaging (TREC) for improved localization of cellular receptors. Green fluorescent protein (GFP) labeled human sodium-glucose cotransporter (hSGLT1) expressed Chinese Hamster Ovary (CHO) cells and endothelial cells (MyEnd) from mouse myocardium stained with phalloidin-rhodamine were used as cell systems to study AFM topography and fluorescence microscopy on the same surface area. Topographical AFM images revealed membrane features such as lamellipodia, cytoskeleton fibers, F-actin filaments and small globular structures with heights ranging from 20 to 30 nm. Combined fluorescence and TREC imaging was applied to detect density, distribution and localization of YFP-labeled CD1d molecules on alpha-galactosylceramide (alphaGalCer)-loaded THP1 cells. While the expression level, distribution and localization of CD1d molecules on THP1 cells were detected with fluorescence microscopy, the nanoscale distribution of binding sites was investigated with molecular recognition imaging by using a chemically modified AFM tip. Using TREC on the inverted light microscope, the recognition sites of cell receptors were detected in recognition images with domain sizes ranging from approximately 25 to approximately 160 nm, with the smaller domains corresponding to a single CD1d molecule.
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Affiliation(s)
- M Duman
- Institute for Biophysics, University of Linz, Linz, Austria
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Toth V, Hejjel L, Fogarasi A, Gyimesi C, Orsi G, Szucs A, Kovacs N, Komoly S, Ebner A, Janszky J. Periictal heart rate variability analysis suggests long-term postictal autonomic disturbance in epilepsy. Eur J Neurol 2010; 17:780-7. [DOI: 10.1111/j.1468-1331.2009.02939.x] [Citation(s) in RCA: 54] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Lamprecht C, Liashkovich I, Neves V, Danzberger J, Heister E, Rangl M, Coley HM, McFadden J, Flahaut E, Gruber HJ, Hinterdorfer P, Kienberger F, Ebner A. AFM imaging of functionalized carbon nanotubes on biological membranes. Nanotechnology 2009; 20:434001. [PMID: 19801758 DOI: 10.1088/0957-4484/20/43/434001] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.8] [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
Multifunctional carbon nanotubes are promising for biomedical applications as their nano-size, together with their physical stability, gives access into the cell and various cellular compartments including the nucleus. However, the direct and label-free detection of carbon nanotube uptake into cells is a challenging task. The atomic force microscope (AFM) is capable of resolving details of cellular surfaces at the nanometer scale and thus allows following of the docking of carbon nanotubes to biological membranes. Here we present topographical AFM images of non-covalently functionalized single walled (SWNT) and double walled carbon nanotubes (DWNT) immobilized on different biological membranes, such as plasma membranes and nuclear envelopes, as well as on a monolayer of avidin molecules. We were able to visualize DWNT on the nuclear membrane while at the same time resolving individual nuclear pore complexes. Furthermore, we succeeded in localizing individual SWNT at the border of incubated cells and in identifying bundles of DWNT on cell surfaces by AFM imaging.
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Affiliation(s)
- C Lamprecht
- Institute of Biophysics, J Kepler University, Linz, Austria
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Elsharkawy AE, El-Ghandour NMF, Oppel F, Pannek H, Schulz R, Hoppe M, Woermann FG, Nayel M, Issa A, Ebner A. Long-term outcome of lesional posterior cortical epilepsy surgery in adults. J Neurol Neurosurg Psychiatry 2009; 80:773-80. [PMID: 19324869 DOI: 10.1136/jnnp.2008.164145] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
OBJECTIVE The aim of this study was to evaluate the short- and long-term seizure outcome and to find predictors of outcome after epilepsy surgery in lesional posterior cortical epilepsies (PCEs). METHODS The operative outcome in 80 consecutive adult patients with lesional PCEs who underwent resective surgery for intractable partial epilepsy between 1991 and 2006 was retrospectively studied. RESULTS The probability of remaining in Engel Class I was 66.3% (95% CI 60 to 72) at 6 months, 52.5% (95% CI 47 to 57) at 2 years, 52.9% (CI 45 to 59) at 5 years and 47.1% (CI 42 to 52) at 10 years. Factors predicting poor outcome were the presence of a somatosensory aura, extraregional spikes, incomplete resection, interictal epileptiform discharge (IED) in EEG 6 months and 2 years postsurgery, history of generalised tonic-clonic seizure (GT-CS) and the presence of focal cortical dysplasia in the resected specimen. Factors predicting good outcome were childhood onset of epilepsy, short epilepsy duration, ipsilateral spikes, visual aura, presence of well-circumscribed lesion in preoperative MRI and a pathologically defined tumour. In the multivariate analysis, predictors were different in the long and short term as follows: incomplete resection as proven by postoperative MRI (hazard ratio (HR) 2.059 (CI 1.19 to 3.67)) predicts seizure relapse in short-term follow-up. The presence of IED in the EEG performed 6 months after surgery (HR 2.3 (CI 1.128 to 4.734)) predicts seizure relapse in the long-term fellow-up. However, the absence of a history of GT-CS independently predicts seizure remission in short- and long-term follow-up. CONCLUSIONS Surgery in PCEs proved to be effective in short- and long-term follow-up. Lesional posterior cortical epilepsy may be a progressive process in a substantial number of cases.
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Affiliation(s)
- A E Elsharkawy
- Department of Presurgical Evaluation, Bethel Epilepsy Centre, Bielefeld, Germany
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Lamprecht C, Danzberger J, Lukanov P, Tîlmaciu CM, Galibert AM, Soula B, Flahaut E, Gruber H, Hinterdorfer P, Ebner A, Kienberger F. AFM imaging of functionalized double-walled carbon nanotubes. Ultramicroscopy 2009; 109:899-906. [DOI: 10.1016/j.ultramic.2009.03.034] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Breyer T, Schlamann MU, Maderwald S, Woermann F, Kraff O, Theysohn JM, Ebner A, Forsting M, Ladd ME, Wanke I. Hochauflösende MR-Bildgebung bei Patienten mit fokaler Epilepsie und Hippocampussklerose bei 7 Tesla. ROFO-FORTSCHR RONTG 2009. [DOI: 10.1055/s-0029-1221643] [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: 10/20/2022]
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Preiner J, Losilla NS, Ebner A, Annibale P, Biscarini F, Garcia R, Hinterdorfer P. Imaging and detection of single molecule recognition events on organic semiconductor surfaces. Nano Lett 2009; 9:571-575. [PMID: 19115834 DOI: 10.1021/nl802721g] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
The combination of organic thin film transistors and biological molecules could open new approaches for the detection and measurement of properties of biological entities. To generate specific addressable binding sites on such substrates, it is necessary to determine how single biological molecules, capable of serving as such binding sites behave upon attachment to semiconductor surfaces. Here, we use a combination of high-resolution atomic force microscopy topographical imaging and single molecule force spectroscopy (TREC), to study the functionality of antibiotin antibodies upon adsorption on pentacene islands, using biotin-functionalized, magnetically coated AFM tips. The antibodies could be stably adsorbed on the pentacene, preserving their functionality of recognizing biotin over the whole observation time of more than one hour. We have resolved individual antigen binding sites on single antibodies for the first time. This highlights the resolution capacity of the technique.
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Affiliation(s)
- J Preiner
- Institutte for Biophysics, Johannes Kepler University of Linz, A-4040 Linz, Austria
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22
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Ebner A. Schwerpunkt Schlafmedizin. KLIN NEUROPHYSIOL 2009. [DOI: 10.1055/s-0028-1112119] [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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23
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Breyer T, Schlamann MU, Maderwald S, Woermann F, Kraff O, Theysohn JM, Ebner A, Forsting M, Ladd ME, Wanke I. High-resolution imaging of hippocampal sclerosis in patients with focal epilepsy at 7 Tesla. ROFO-FORTSCHR RONTG 2009. [DOI: 10.1055/s-0028-1124036] [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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24
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Schulz R, Hoppe M, Pannek H, May T, Ebner A. 31. Analysis of reoperation of 22 patients with mesial temporal lobe sclerosis. Clin Neurophysiol 2009. [DOI: 10.1016/j.clinph.2008.07.032] [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: 11/26/2022]
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25
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Schulze-Bonhage A, Trippel M, Wagner K, Bast T, Deimling FV, Ebner A, Elger C, Mayer T, Keimer R, Steinhoff BJ, Spreer J, Fauser S, Ostertag C. Outcome and predictors of interstitial radiosurgery in the treatment of gelastic epilepsy. Neurology 2008; 71:277-82. [PMID: 18645166 DOI: 10.1212/01.wnl.0000318279.92233.82] [Citation(s) in RCA: 48] [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] [Indexed: 11/15/2022] Open
Abstract
BACKGROUND Gelastic epilepsy due to hypothalamic hamartomas is usually a severe condition encompassing both epileptic seizures and an epileptic encephalopathy associated with behavioral and cognitive impairments. Here we report the effects of interstitial radiosurgery in the treatment of this generally pharmacoresistant epilepsy syndrome. METHODS Twenty-four consecutive patients (3-46 years of age, 7 women, mean age 21.9 years, mean duration of epilepsy 17.6 years) with gelastic epilepsy due to MR-ascertained hypothalamic hamartoma and a minimum follow-up period of 1 year were included in this evaluation. Treatment was performed by interstitial radiosurgery using stereotactically implanted (125)I seeds. Effects of treatment on seizure frequency and possible side effects were assessed prospectively. Factors influencing outcome and side effects were analyzed statistically. RESULTS After a mean 24-month follow-up period following the last radiosurgical treatment, 11/24 patients were seizure free or had seizure reduction of at least 90% (Engel class I and II), in some cases only after repeated treatment. The duration of epilepsy prior to radiosurgery negatively influenced outcome. Treatment was well tolerated in most patients. Headache, fatigue, and lethargy were transient side effects associated with the development of brain edema extending from the implantation site in five patients. Four patients had a weight gain of more than 5 kg which was severe in two patients. The majority of those patients whose cognitive functions initially deteriorated showed subsequent recovery of cognitive functions, but episodic memory in two patients showed persistent decline at 1 year follow-up. Longer disease duration increased the risk for cognitive side effects, and larger hamartoma size and eccentric seed positioning increased the risk for radiogenic brain edema. Neither perioperative mortality nor neurologic impairments, visual field defects, or endocrinologic disturbances were encountered following treatment. CONCLUSION Interstitial radiosurgery was efficacious in significantly improving gelastic epilepsy in about half of the patients treated in this series. Weight gain may occur as a side effect, whereas other severe side effects reported following microsurgical removal of the hamartoma were absent. The study results strongly suggest early causal treatment, as chances for seizure control are higher and the risk for cognitive side effects is lower in patients with shorter disease duration.
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Affiliation(s)
- A Schulze-Bonhage
- Epilepsy Center, Neurocentre, University Hospital Freiburg, Breisacher Str. 64, D-79106 Freiburg, Germany.
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26
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Grewe P, Labudda K, Horstmann S, Aengenendt J, Wörmann F, Ebner A, Markowitsch H, Brand M. Entscheidungsverhalten bei Patienten mit Frontallappenepilepsie. Akt Neurol 2008. [DOI: 10.1055/s-0028-1086945] [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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27
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Schulze-Bonhage A, Wagner K, Bast T, Ebner A, Elger C, Mayer T, Steinhoff B, Altenmüller D, Fauser S, Trippel M. Ergebnisse und Prädiktoren interstitieller Radiochirurgie zur Behandlung gelastischer Epilepsien. Akt Neurol 2008. [DOI: 10.1055/s-0028-1086517] [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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28
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Labudda K, Brand M, Mertens M, Ebner A, Wörmann F. Vergleich prä- und postoperativer Aktivierungsmuster beim Entscheidungsverhalten nach Resektion einer frontalen fokalen corticalen Dysplasie: eine Einzelfallbeschreibung. Akt Neurol 2008. [DOI: 10.1055/s-0028-1086959] [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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29
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31
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Russegger L, Ebner A. Persistierende Miktionsstörungen bei lumbalen Bandscheibenvorfällen. Aktuelle Urol 2008. [DOI: 10.1055/s-2008-1060605] [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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32
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33
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Hinrichs H, Bätz B, Ebner A, Rappelsberger P, Zschocke S. Fragenkatalog für digital/papierlos arbeitende EEG-Geräte. KLIN NEUROPHYSIOL 2008. [DOI: 10.1055/s-2008-1060216] [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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34
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Hinrichs H, Curio G, Dembach R, Ebner A, Rappelsberger P, Zschocke S. Empfehlung der Technischen Kommission der Deutschen Gesellschaft für Klinische Neurophysiologie (DGKN) zur Nutzung von CD-ROM-Medien für die Archivierung digital erfaßter EEG-Daten. KLIN NEUROPHYSIOL 2008. [DOI: 10.1055/s-2008-1060096] [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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35
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Zentner J, Ebner A. Somatosensibel und motorisch evozierte Potentiale bei der prognostischen Beurteilung traumatisch und nichttraumatisch komatöser Patienten. KLIN NEUROPHYSIOL 2008. [DOI: 10.1055/s-2008-1060888] [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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36
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Ebner A, Scherg M, Dietl H. Das akustisch evozierte Hirnstammpotential in der klinisch neurologischen Anwendung. KLIN NEUROPHYSIOL 2008. [DOI: 10.1055/s-2008-1061156] [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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37
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Schulz R, Hoppe M, Pannek H, May T, Ebner A. Analysis of reoperation of 22 patients with mesial temporal Lobe Sclerosis. KLIN NEUROPHYSIOL 2008. [DOI: 10.1055/s-2008-1072826] [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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38
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Janszky J, Fogarasi A, Toth V, Magalova V, Gyimesi C, Kovacs N, Schulz R, Ebner A. Peri-ictal vegetative symptoms in temporal lobe epilepsy. Epilepsy Behav 2007; 11:125-9. [PMID: 17584534 DOI: 10.1016/j.yebeh.2007.04.015] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.6] [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: 03/08/2007] [Revised: 04/14/2007] [Accepted: 04/17/2007] [Indexed: 12/16/2022]
Abstract
We investigated peri-ictal vegetative symptoms (PIVS) in 141 patients with adult temporal lobe epilepsy (TLE) and assessed frequency, gender effect, and lateralizing value of peri-ictal autonomic signs. We recorded abdominal auras in 62%, goosebumps in 3%, hypersalivation in 12%, spitting in 1%, cold shivering in 3%, urinary urge in 3%, water drinking in 7%, postictal nose wiping (PNW) in 44%, and postictal coughing in 16%. At least one vegetative sign appeared in 86% of the patients. The presence of PIVS did not have a significant lateralizing value. PNW occurred in 52% of women and in 33% of men, whereas any PIVS was present in 93% of women and 77% of men. In summary, contradictory to previous studies, the presence of PIVS has no lateralizing value, which may be linked to a low frequency of occurrence of PIVS. PIVS, especially PNW, occurred more frequently in women, supporting the gender differences in epilepsy.
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Affiliation(s)
- J Janszky
- Epilepsy Center Bethel, Bielefeld, Germany.
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40
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Franke K, Locharernkul C, Schulz R, Hoppe M, Ebner A. Die Verwendung einer extrazephalen Referenzelektrode in der Elektroenzephalografie. KLIN NEUROPHYSIOL 2007. [DOI: 10.1055/s-2007-977726] [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: 10/23/2022]
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41
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Boesebeck F, Janszky J, Kellinghaus C, May T, Ebner A. Presurgical seizure frequency and tumoral etiology predict the outcome after extratemporal epilepsy surgery. J Neurol 2007; 254:996-9. [PMID: 17486287 DOI: 10.1007/s00415-006-0309-6] [Citation(s) in RCA: 19] [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] [Subscribe] [Scholar Register] [Received: 07/31/2005] [Revised: 01/30/2006] [Accepted: 03/15/2006] [Indexed: 12/22/2022]
Abstract
OBJECTIVE To examine the predictive value of demographic data for the seizure outcome after extratemporal epilepsy surgery. METHODS Eightyone patients who underwent resective extratemporal epilepsy surgery were retrospectively studied concerning (a) age at surgery, (b) onset of epilepsy, (c) duration of epilepsy, (d) number of seizures at the time of presurgical evaluation, (d) number of presurgically tested antiepileptic substances and (f) number of seizure types. The data were correlated to the postoperative seizure outcome after two years. RESULTS 33 patients (40.7%) were seizure free two years after surgery. Univariate and multivariate analysis revealed that both tumor etiology and low presurgical seizure frequency were independently associated with seizure freedom after epilepsy surgery. The recurrence rate in patients with one or more seizures per day was more than two-fold if compared with patients with fewer seizures. The remaining demographic factors did not show a significant association with seizure outcome in our 81 patients. CONCLUSIONS Fewer than daily seizures prior to surgery and a tumoral etiology independently increase the likelihood of remaining seizure free two years after extratemporal epilepsy surgery.
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Affiliation(s)
- F Boesebeck
- Bethel Epilepsy Center, Klinik Mara I, Maraweg 21, 33617, Bielefeld, Germany
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42
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Quiske A, Unterrainer J, Wagner K, Frings L, Breyer T, Halsband U, Ostertag C, Elger CE, Ebner A, Tuxhorn I, Ernst JP, Steinhoff BJ, Mayer T, Schulze-Bonhage A. Assessment of cognitive functions before and after stereotactic interstitial radiosurgery of hypothalamic hamartomas in patients with gelastic seizures. Epilepsy Behav 2007; 10:328-32. [PMID: 17314075 DOI: 10.1016/j.yebeh.2006.12.009] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.7] [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: 11/06/2006] [Revised: 12/19/2006] [Accepted: 12/29/2006] [Indexed: 11/21/2022]
Abstract
We assessed cognitive functions before and 3 months after interstitial radiotherapy in 14 patients with gelastic seizures caused by hypothalamic hamartoma. Cognitive functioning was assessed before temporary implantation of (125)I-seed and 3 months after seed explantation. Performance was compared with that of a selected control group of conservatively treated patients with symptomatic focal epilepsy tested before add-on treatment with a new antiepileptic drug and after reaching steady state. No short-term negative side effects of the interstitial radiosurgery could be observed for the domains of attention and executive functions and verbal and figural memory performance. Cognitive development of the patients treated with seeds was comparable to that of the control group at both assessments. Thus, the stereotactic implantation of (125)I-seeds in this patient group with gelastic seizures caused by hypothalamic hamartoma provides a well-tolerated minimally invasive method in the treatment of this severe epileptic syndrome without negative cognitive side effects.
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Affiliation(s)
- A Quiske
- Epilepsy Center, University Hospital of Freiburg, Freiburg, Germany.
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Gyimesi C, Fogarasi A, Kovács N, Toth V, Magalova V, Schulz R, Ebner A, Janszky J. Patients' ability to react before complex partial seizures. Epilepsy Behav 2007; 10:183-6. [PMID: 17088108 DOI: 10.1016/j.yebeh.2006.10.004] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/22/2006] [Revised: 10/01/2006] [Accepted: 10/06/2006] [Indexed: 11/30/2022]
Abstract
OBJECTIVE The purpose of the study described here was to investigate the pathophysiology of patients' ability to react during the conscious (aura) phase of complex partial seizures (CPS) originating from the temporal lobe. METHODS We reviewed video recordings of CPS experienced by 130 adult patients who had undergone epilepsy surgery for intractable medial temporal lobe epilepsy. All patients were instructed to push the alarm button when they felt an aura. We defined the preictal reactivity as the ability to push the alarm button before the complex partial (unconscious) phase of seizures. RESULTS Seventy-seven patients (59%) pushed the alarm button before seizures. Patients with preictal reactivity were significantly younger, more often had lateralized EEG seizure patterns, and had a better postoperative outcome. Patients who did not push the alarm button had secondarily generalized seizures more often. CONCLUSIONS Ability to react before CPS is associated with a circumscribed region involved at seizure onset and spread, and with a seizure-free postoperative outcome.
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Affiliation(s)
- C Gyimesi
- Epilepsy Center Bethel, Bielefeld, Germany
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44
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Pannek HW, Tuxhorn I, Ebner A, Thorbecke R. Ethisch-rechtliche Eckpunkte in der Epilepsiechirurgie. Akt Neurol 2007. [DOI: 10.1055/s-2007-987711] [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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45
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Lange A, Scheler-Hofmann M, Ebner A, Lignau ML, Hoffmann W, Haas JP, Fusch C. Influence of sozio-and economically factors on the Screening of Toxoplasmose infection during the pregnancy – population-based investigation of the Survey of Neonates in Pommerania (SNiP). Z Geburtshilfe Neonatol 2007. [DOI: 10.1055/s-2007-983087] [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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46
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Ebner A. Präoperative Epilepsiediagnostik und operative Epilepsiebehandlung. KLIN NEUROPHYSIOL 2006. [DOI: 10.1055/s-2006-951911] [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: 10/23/2022]
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47
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Ebner A. EEG und Epilepsie im Blickpunkt. KLIN NEUROPHYSIOL 2006. [DOI: 10.1055/s-2006-951900] [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: 10/23/2022]
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48
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Hüneröder I, Ellermann L, Hoffmann W, Lingnau ML, Scheler-Hofmann M, Ebner A, Fusch C, Haas JP. Analyse der perinatalen Morbidität und Mortalität Neugeborener im Rahmen des Survey of Neonates in Pomerania (SNiP) –04/2003 bis 03/2005. Z Geburtshilfe Neonatol 2006. [DOI: 10.1055/s-2006-946221] [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: 10/19/2022]
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49
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Scheler-Hofmann M, Haas JP, Lange A, Ebner A, Fusch C, Lingnau ML, Hoffmann W. Einfluss sozioökonomischer Faktoren auf Schwangerschaftsplanung, Geburtsvorbereitung und Inanspruchnahme der Folsäureprophylaxe (populationsbasierte Studie Ostvorpommern). Z Geburtshilfe Neonatol 2006. [DOI: 10.1055/s-2006-946178] [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: 10/19/2022]
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50
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Janszky J, Fogarasi A, Magalova V, Gyimesi C, Kovács N, Schulz R, Ebner A. Unilateral hand automatisms in temporal lobe epilepsy. Seizure 2006; 15:393-6. [PMID: 16757187 DOI: 10.1016/j.seizure.2006.05.002] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.7] [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: 01/26/2006] [Revised: 03/28/2006] [Accepted: 05/03/2006] [Indexed: 11/27/2022] Open
Abstract
OBJECTIVES To analyse the lateralising value of unilateral manual automatism (UMA), its relation to contralateral dystonia and the hand by which the UMA was performed. METHODS In this retrospective study, we reviewed video recordings of 141 patients (mean age 34.1+/-10) who had consecutively undergone presurgical evaluations with ictal video-EEG recordings and high-resolution MRI, had had epilepsy surgery due to intractable medial temporal lobe epilepsy with complex partial seizures due to unilateral medial temporal lobe lesions. The video recordings were prospectively reviewed by one of the authors blinded to patient's clinical data except the diagnosis of medial temporal lobe epilepsy. Altogether 310 archived seizures were analysed. RESULTS Hand automatisms occurred in 86.5% of patients. UMA occurred in 53% of patients. If UMA was accompanied by contralateral hand dystonia, it had a high lateralising value to the ipsilateral epileptic focus (EF), it was ipsilateral in 85% of patients. Conversely, if UMA occurred without contralateral dystonia, it had only a limited lateralising value because it was ipsilateral to the EF in only 63% of patients. However, we found that left-sided UMA without dystonia had a high lateralising value to the left hemisphere (ipsilateral to the EF in 82%), while right-sided UMA without dystonia has practically no lateralising value. CONCLUSIONS UMA with contralateral dystonia has a high lateralising value to the ipsilateral hemisphere. Left-sided UMA without contralateral dystonia has a lateralising value to the left hemisphere. Right-sided UMA without contralateral dystonia has no lateralising value.
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Affiliation(s)
- J Janszky
- Epilepsy Center Bethel, Bielefeld, Germany.
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