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Osmanovic A, Koch M, Müschen L, Seeliger T, Gingele S, Stangel M, Dengler R, Petri S, Skripuletz T, Körner S. P28 Blink R1 latency outcome in patients with chronic acquired demyelinating neuropathy under immunoglobulin treatment. Clin Neurophysiol 2020. [DOI: 10.1016/j.clinph.2019.12.034] [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: 10/24/2022]
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Vogt S, Schreiber S, Kollewe K, Körner S, Heinze HJ, Dengler R, Petri S, Vielhaber S. Dyspnea in amyotrophic lateral sclerosis: The Dyspnea-ALS-Scale (DALS-15) essentially contributes to the diagnosis of respiratory impairment. Respir Med 2019; 154:116-121. [PMID: 31234039 DOI: 10.1016/j.rmed.2019.06.014] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/31/2018] [Revised: 04/29/2019] [Accepted: 06/12/2019] [Indexed: 11/19/2022]
Abstract
BACKGROUND Dyspnea is a cardinal but often underestimated symptom in amyotrophic lateral sclerosis (ALS). The newly developed Dyspnea-ALS-Scale (DALS-15) is highly relevant for therapeutic decisions because dyspnea is a separate criterion to consider noninvasive ventilation (NIV) in ALS. In comparison to the limited effects of neuroprotective compounds, NIV has the greatest impact on survival and improves quality of life. OBJECTIVE To investigate whether dyspnea corresponds to parameters of respiratory status mainly used in clinical neurological practice. We also investigated if the DALS-15 could help identify patients for consideration of NIV in whom neither spirometry nor blood gas parameters indicate the need for NIV (forced vital capacity (FVC) < 50% or probable <75%, pCO2 ≥45 mmHg). METHODS Seventy ALS patients with dyspnea according to the DALS-15 obtained blood gas analysis and spirometry (FVC in sitting and supine positions). The supine decline in FVC was calculated. RESULTS There was no linear relationship between dyspnea and spirometry as well as blood gases. 83% of our patients had an upright FVC still greater than 50% and no daytime hypercapnia. CONCLUSIONS Our study clearly shows that dyspnea can occur independently of objective indicators of respiratory impairment like spirometry or blood gases. Hence, the DALS-15 covers another aspect of respiratory impairment than these tests and refers to the subjective component of respiratory impairment. It detects dyspnea in a considerable proportion of patients in whom NIV should thus be considered although their spirometric and blood gas results do not point towards NIV. The DALS-15 therefore may help to improve the stratification of patients with respiratory impairment for more efficient symptom management and timely coordination of care.
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Affiliation(s)
- S Vogt
- Department of Neurology, Otto-von-Guericke University, Magdeburg, Germany.
| | - S Schreiber
- Department of Neurology, Otto-von-Guericke University, Magdeburg, Germany
| | - K Kollewe
- Department of Neurology, Hannover Medical School, Hannover, Germany
| | - S Körner
- Department of Neurology, Hannover Medical School, Hannover, Germany
| | - H-J Heinze
- Department of Neurology, Otto-von-Guericke University, Magdeburg, Germany; German Center for Neurodegenerative Diseases, Magdeburg, Germany; Leibniz Institute for Neurobiology, Magdeburg, Germany
| | - R Dengler
- Department of Neurology, Hannover Medical School, Hannover, Germany
| | - S Petri
- Department of Neurology, Hannover Medical School, Hannover, Germany
| | - S Vielhaber
- Department of Neurology, Otto-von-Guericke University, Magdeburg, Germany; German Center for Neurodegenerative Diseases, Magdeburg, Germany
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Schreiber S, Schreiber F, Garz C, Debska-Vielhaber G, Machts J, Dengler R, Petri S, Nestor P, Vielhaber S. P38. Longitudinal sonographic alterations of the peripheral nerve structure in ALS. Clin Neurophysiol 2018. [DOI: 10.1016/j.clinph.2018.04.678] [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: 11/30/2022]
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Gratz KF, Kolbe H, Meyer GJ, Dengler R, Knoop BO, Hundeshagen H, Berding G. 123I-IBZM SPECT: Reconstruction Methodology and Results in Parkinsonism and Dystonia. Nuklearmedizin 2018. [DOI: 10.1055/s-0038-1629754] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Abstract
SummaryIn 58 patients with Parkinsonism or dystonia striatal dopamine D2 receptors were investigated using 123l-iodobenzamide (123I-IBZM) single-photon emission computed tomography (SPECT). The influence of SPECT reconstruction methodology on semiquantification and the clinical value of 123I-IBZM SPECT were evaluated. Delineation of the striatal uptake and striatum/frontal cortex (ST/FC) ratios were improved by the use of compensation procedures for scatter and attenuation as well as the choice of an adequate filter. Satisfactory results were achieved using a Metz prefilter with a comparatively high order number (i. e. high cut-off and low suppression of higher frequencies via roll-off). Regarding clinical diagnoses it was not possible to differentiate between advanced idiopathic Parkinson’s disease (IP) and Parkinsonism of other aetiology (OP) on the basis of 123I-IBZM SPECT. But patients with IP and favourable response to L-Dopa showed significantly higher ST/FC ratios than those with fluctuating response. In patients with dystonia ST/FC ratios were significantly higher compared to patients with IP or OP.
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Brücke T, Odin P, Brooks DJ, Kolbe H, Gielow P, Harke H, Knoop BO, Dengler R, Knapp WH, Berding G. [123I]β-CIT SPECT imaging of dopamine and serotonin transporters in Parkinson’s disease and multiple system atrophy. Nuklearmedizin 2018. [DOI: 10.1055/s-0038-1623903] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Abstract
Summary
Aims: Definition of the regional pattern of dopamine transporter (DAT) dysfunction in advanced Parkinson’s disease (PD) and evaluation of a potential correlation between DAT binding and symptoms; elucidation of the role of DAT imaging in the differential diagnosis of PD and multiple system atrophy (MSA); assessment and comparison of serotonin transporter (SERT) binding in PD and MSA. Methods: [123I]ß-CIT SPECT was performed in 14 patients with advanced PD, 10 with moderate MSA and 20 healthy persons. Specific to nonspecific tracer binding ratios (V3’’) were calculated via ROI analysis of uptake images at 4 h (SERT binding) and 24 h (DAT binding) p. i. Results: In PD bilateral reduction of striatal DAT binding (63-70%) was seen. The caudate ipsilateral to the clinically predominantly affected side showed relatively the least impairment. Significant correlations (r = -0.54 to -0.64) between DAT binding and Hoehn and Yahr stage, UPDRS-scores and duration of disease were found. In MSA DAT binding was less reduced (40-48%) targeting the putamen contralateral to the side of clinical predominance. Significantly lower SERT binding was observed in PD midbrain and MSA hypothalamus compared to controls – and in MSA relative to PD mesial frontal cortex. Conclusions: In advanced PD striatal DAT binding is markedly reduced with the least reduction in caudate ipsilateral to the clinically predominantly affected side. In moderate MSA with asymmetrical symptoms DAT dysfunction is predominant in the contralateral putamen, a pattern seen in early PD. The reduction of SERT in the midbrain area of PD patients suggests additional tegmental degeneration while in MSA the serotonergic system seems to be more generally affected.
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Brettschneider J, Irwin DJ, Boluda S, Byrne MD, Fang L, Lee EB, Robinson JL, Suh E, Van Deerlin VM, Toledo JB, Grossman M, Hurtig H, Dengler R, Petri S, Lee VMY, Trojanowski JQ. Progression of alpha-synuclein pathology in multiple system atrophy of the cerebellar type. Neuropathol Appl Neurobiol 2016; 43:315-329. [PMID: 27716988 DOI: 10.1111/nan.12362] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2016] [Revised: 07/19/2016] [Accepted: 09/22/2016] [Indexed: 12/11/2022]
Abstract
AIMS The aim of this study was to identify early foci of α-synuclein (α-syn pathology) accumulation, subsequent progression and neurodegeneration in multiple system atrophy of the cerebellar type (MSA-C). METHODS We analysed 70-μm-thick sections of 10 cases with MSA-C and 24 normal controls. RESULTS MSA-C cases with the lowest burden of pathology showed α-syn glial cytoplasmic inclusions (GCIs) in the cerebellum as well as in medullary and pontine cerebellar projections. Cerebellar pathology was highly selective and severely involved subcortical white matter, whereas deep white matter and granular layer were only mildly affected and the molecular layer was spared. Loss of Purkinje cells increased with disease duration and was associated with neuronal and axonal abnormalities. Neocortex, basal ganglia and spinal cord became consecutively involved with the increasing burden of α-syn pathology, followed by hippocampus, amygdala, and, finally, the visual cortex. GCIs were associated with myelinated axons, and the severity of GCIs correlated with demyelination. CONCLUSIONS Our findings indicate that cerebellar subcortical white matter and cerebellar brainstem projections are likely the earliest foci of α-syn pathology in MSA-C, followed by involvement of more widespread regions of the central nervous system and neurodegeneration with disease progression.
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Affiliation(s)
- J Brettschneider
- Center for Neurodegenerative Disease Research (CNDR), University of Pennsylvania School of Medicine, Philadelphia, PA, USA
| | - D J Irwin
- Center for Neurodegenerative Disease Research (CNDR), University of Pennsylvania School of Medicine, Philadelphia, PA, USA.,Department of Neurology, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA, USA
| | - S Boluda
- Center for Neurodegenerative Disease Research (CNDR), University of Pennsylvania School of Medicine, Philadelphia, PA, USA
| | - M D Byrne
- Center for Neurodegenerative Disease Research (CNDR), University of Pennsylvania School of Medicine, Philadelphia, PA, USA
| | - L Fang
- Clinical Neuroanatomy Section, Department of Neurology, Center for Biomedical Research, University of Ulm, Ulm, Germany
| | - E B Lee
- Center for Neurodegenerative Disease Research (CNDR), University of Pennsylvania School of Medicine, Philadelphia, PA, USA.,Department of Pathology and Laboratory Medicine, University of Pennsylvania School of Medicine, Philadelphia, PA, USA
| | - J L Robinson
- Center for Neurodegenerative Disease Research (CNDR), University of Pennsylvania School of Medicine, Philadelphia, PA, USA
| | - E Suh
- Center for Neurodegenerative Disease Research (CNDR), University of Pennsylvania School of Medicine, Philadelphia, PA, USA.,Department of Pathology and Laboratory Medicine, University of Pennsylvania School of Medicine, Philadelphia, PA, USA
| | - V M Van Deerlin
- Center for Neurodegenerative Disease Research (CNDR), University of Pennsylvania School of Medicine, Philadelphia, PA, USA.,Department of Pathology and Laboratory Medicine, University of Pennsylvania School of Medicine, Philadelphia, PA, USA
| | - J B Toledo
- Center for Neurodegenerative Disease Research (CNDR), University of Pennsylvania School of Medicine, Philadelphia, PA, USA
| | - M Grossman
- Department of Neurology, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA, USA
| | - H Hurtig
- Department of Neurology, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA, USA
| | - R Dengler
- Department of Neurology, Hanover Medical School, Hanover, Germany
| | - S Petri
- Department of Neurology, Hanover Medical School, Hanover, Germany
| | - V M-Y Lee
- Center for Neurodegenerative Disease Research (CNDR), University of Pennsylvania School of Medicine, Philadelphia, PA, USA.,Department of Pathology and Laboratory Medicine, University of Pennsylvania School of Medicine, Philadelphia, PA, USA
| | - J Q Trojanowski
- Center for Neurodegenerative Disease Research (CNDR), University of Pennsylvania School of Medicine, Philadelphia, PA, USA.,Department of Pathology and Laboratory Medicine, University of Pennsylvania School of Medicine, Philadelphia, PA, USA
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Beck AK, Lütjens G, Schwabe K, Dengler R, Krauss J, Sandmann P. V21. Electrophysiological correlates of auditory change detection: A simultaneous depth and scalp EEG study. Clin Neurophysiol 2015. [DOI: 10.1016/j.clinph.2015.04.099] [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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Bischoff C, Dengler R, Glocker F, Schulte-Mattler W. Ultraschalldiagnostik peripherer Nerven – Stellungnahme der EMG-Kommission der DGKN. KLIN NEUROPHYSIOL 2015. [DOI: 10.1055/s-0035-1549881] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
| | - R. Dengler
- Neurologische Klinik mit Klinischer Neurophysiologie, Medizinische Hochschule Hannover, Hannover
| | - F. Glocker
- Klinik für Neurologie und Neurophysiologie der Universität Freiburg, Freiburg
| | - W. Schulte-Mattler
- Neurologische Klinik und Poliklinik der Universität Regensburg, Regensburg
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Straube A, Dengler R. [Peripheral neurology: not a fringe area in routine clinical treatment!]. Nervenarzt 2015; 86:131-132. [PMID: 25631119 DOI: 10.1007/s00115-014-4077-8] [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] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Affiliation(s)
- A Straube
- Neurologische Klinik und Poliklinik & Deutsches Schwindel- und Gleichgewichtszentrum IFB, Ludwig-Maximilians-Universität München, Klinikum Großhadern, Marchioninistr. 15, 81377, München, Deutschland,
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Lange F, Seer C, Dengler R, Kopp B. P2: The brain’s orienting response: a universal electrophysiological signature of executive processing? Clin Neurophysiol 2014. [DOI: 10.1016/s1388-2457(14)50166-6] [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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Gutmann L, Dengler R. Hanns Christian Hopf, MD (1934-2013). Neurology 2014; 82:1490. [DOI: 10.1212/wnl.0000000000000371] [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: 11/15/2022] Open
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Kollewe K, Petri S, Dengler R, Schuhmacher U, Lechner W, Klawonn F, Grigull L. Diagnosis of neuromuscular diseases using a novel questionnaire and data mining applications. Science or fiction? KLIN NEUROPHYSIOL 2014. [DOI: 10.1055/s-0034-1371262] [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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Wohlfarth K, Fiedler T, Kollewe K, Wegner F, Weisemann J, Adeli G, Alvermann S, Böselt S, Escher C, Garde N, Gingele S, Kaehler SB, Karatschai R, Krüger T, Schmidt T, Sikorra S, Tacik P, Wollmann J, Dengler R, Bigalke H, Rummel A. BoNT/D is effective in humans – but with higher dosing and shorter duration than BoNT/A. KLIN NEUROPHYSIOL 2014. [DOI: 10.1055/s-0034-1371325] [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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Schreiber S, Abdulla S, Debska-Vielhaber G, Machts J, Feistner H, Oldag A, Görtler M, Petri S, Kollewe K, Kropf S, Heinze HJ, Dengler R, Vielhaber S. Nervensonographische Befunde bei verschiedenen Varianten der ALS. KLIN NEUROPHYSIOL 2014. [DOI: 10.1055/s-0034-1371255] [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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15
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Wegner F, Nabavi E, Wilke F, Ben Tayeb S, Boeck AL, Trebst C, Stangel M, Voss E, Schrader C, Ahrens J, Leffler A, Rodriguez-Raecke R, Dengler R, Geworski L, Bengel F, Berding G. Anti-LGI1 and anti-NMDA receptor encephalitis show distinct patterns of brain glucose metabolism in FDG-PET. KLIN NEUROPHYSIOL 2014. [DOI: 10.1055/s-0034-1371187] [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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Abdulla S, Kaufmann J, Machts J, Körner S, Kollewe K, Dengler R, Petri S, Heinze HJ, Vielhaber S. Neuropsychologisches Profil bei ALS in Relation zum Hippokampusvolumen. KLIN NEUROPHYSIOL 2014. [DOI: 10.1055/s-0034-1371256] [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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Scheidt CE, Heinen F, Nickel T, Rayki O, Wissel J, Poewe W, Benecke R, Arnold G, Oertel W, Dengler R, Deuschl G. Spasmodic torticollis - a multicentre study on behavioural aspects IV: psychopathology. Behav Neurol 2014; 9:97-103. [PMID: 24487493 DOI: 10.3233/ben-1996-9206] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
The GSI (General Symptom Index) of the Symptom Checklist 90 R (SCL 90 R) (as a global indicator of the severity of psychiatric symptoms) of 27% of the spasmodic torticollis (ST) sample fell outside the 95% range of the normal control group (two standard deviations). Patients with a higher GSI were younger, more functionally disabled and subject to higher psychosocial stress due to the illness. The highest scores were reached on the subscales of somatization, interpersonal sensitivity and depression. On the depression scale, 23% of the patients' scores were abnormal. This scale correlated significantly with the neurological signs, particularly the TSUI-index and laterocollis. A statistically significant correlation also existed between psychiatric morbidity and a family history of mental disorder. More than 50% of the patients reported that stressful life events had triggered their illness. In order of frequency, a death came first, followed by marital strife, changes in employment and family arguments. The data suggest that psychopathology in ST should generally be considered as a result of a variety of interacting factors, biological, psychological and social.
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Affiliation(s)
- C E Scheidt
- Abteilung für Psychotherapie und Psychosomatik, Universität Freiburg, Germany
| | - F Heinen
- Neurologische Klinik und Poliklinik, Universität Freiburg, Germany
| | - T Nickel
- Abteilung für Psychotherapie und Psychosomatik, Universität Freiburg, Germany
| | - O Rayki
- Abteilung für Psychotherapie und Psychosomatik, Universität Freiburg, Germany
| | - J Wissel
- Neurologische Klinik, Rudolf-Virchow-Krankenhaus, Humboldt-Universität Berlin, Germany
| | - W Poewe
- Neurologische Klinik, Rudolf-Virchow-Krankenhaus, Humboldt-Universität Berlin, Germany
| | - R Benecke
- Neurologische Klinik, Universität Düsseldorf, Germany
| | - G Arnold
- Neurologische Klinik, Ludwig-Maximilians-Universität München, Germany
| | - W Oertel
- Neurologische Klinik, Ludwig-Maximilians-Universität München, Germany
| | - R Dengler
- Neurologische Klinik, Medizinische Hochschule Hannover, Germany
| | - G Deuschl
- Neurologische Klinik und Poliklinik, Universität Freiburg, Germany
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Khomenko A, Baldaranov D, Grassinger J, Johannesen S, Kobor I, Roesl J, Kollewe K, Petri S, Dengler R, Deppe M, Ludolph A, Kassubek J, Schuierer G, Bruun T, Schulte-Mattler W, Bogdahn U. “Reporting biomarker” development: Update in als patients treated with G-CSF -mobilized hematopoietic stem cells. J Neurol Sci 2013. [DOI: 10.1016/j.jns.2013.07.1570] [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: 11/27/2022]
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Scharn N, Ganzenmueller T, Wenzel JJ, Dengler R, Heim A, Wegner F. Guillain-Barré syndrome associated with autochthonous infection by hepatitis E virus subgenotype 3c. Infection 2013; 42:171-3. [PMID: 23512540 DOI: 10.1007/s15010-013-0448-5] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2013] [Accepted: 03/11/2013] [Indexed: 01/11/2023]
Abstract
In this report, we present a case of a 50-year-old immunocompetent man with Guillain-Barré syndrome (GBS) associated with an autochthonous hepatitis E virus (HEV) infection. The patient presented with tetraparesis and elevated liver enzymes. HEV infection was confirmed serologically and by polymerase chain reaction (PCR) from blood and stool. Phylogenetic analysis revealed a novel HEV genotype 3 isolate closely related to other subgenotype 3c isolates from pig livers purchased in Germany. This indicates an autochthonous, potentially food-related hepatitis E and is, to our knowledge, the first report about a neurological syndrome associated with an HEV subgenotype 3c infection.
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Affiliation(s)
- N Scharn
- Department of Neurology, Hannover Medical School, Carl-Neuberg-Straße 1, 30625, Hannover, Germany
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Schreiber S, Abdulla S, Machts J, Galazky I, Oldag A, Goertler M, Petri S, Kollewe K, Heinze HJ, Dengler R, Vielhaber S. Nervensonographische Veränderungen bei Patienten mit ALS. KLIN NEUROPHYSIOL 2013. [DOI: 10.1055/s-0033-1337228] [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: 10/27/2022]
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Rustamov N, Rodriguez-Raecke R, Kopp B, Timm L, Dengler R, Schrader C, Tacik P, Dressler D, Matthias W. The conflict adaptation effect in Parkinson's disease: a study with EEG. KLIN NEUROPHYSIOL 2013. [DOI: 10.1055/s-0033-1337259] [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: 10/27/2022]
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Kollewe K, Wurster U, Sinzenich T, Mohammadi B, Körner S, Dengler R, Petri S. Ganglioside Antibodies in Amyotrophic Lateral Sclerosis. KLIN NEUROPHYSIOL 2013. [DOI: 10.1055/s-0033-1337234] [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: 10/27/2022]
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Heldmann M, Ye Z, Milenkova M, Mohhamadi B, Kollewe K, Schrader C, Dengler R, Samii A, Fellbrich A, Münte T. Dopamine agonists modulate the neural network of reward anticipation in Parkinson's disease patients. KLIN NEUROPHYSIOL 2013. [DOI: 10.1055/s-0033-1337129] [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: 10/27/2022]
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Agrawal D, Thorne JD, Viola FC, Timm L, Debener S, Büchner A, Dengler R, Wittfoth M. Electrophysiological responses to emotional prosody perception in cochlear implant users. Neuroimage Clin 2013; 2:229-38. [PMID: 24179776 PMCID: PMC3777796 DOI: 10.1016/j.nicl.2013.01.001] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/22/2012] [Revised: 12/31/2012] [Accepted: 01/03/2013] [Indexed: 11/30/2022]
Abstract
The present electroencephalographic (EEG) study investigated the ability of cochlear implant (CI) users to recognize emotional prosody. Two CI speech-processing strategies were compared: the ACE (Advance Combination Encoder) and the newly developed MP3000. Semantically neutral sentences spoken in three different emotional prosodies (neutral, angry, happy) were presented to 20 post-lingually deafened CI users and age-matched normal-hearing controls. Event related potentials (ERPs) were recorded to study the N100 and the P200 responses. In addition, event-related spectral power modulations were calculated to study the brain activity corresponding to the recognition of prosody in earlier (0–400) as well as later (600–1200) part of the stimuli where the prosodic features differed maximally. CI users with MP3000 strategy showed a higher proportion of correctly recognized prosodic information compared to the ACE strategy users. Our ERP results demonstrated that emotional prosody elicited significant N100 and P200 peaks. Furthermore, the P200 amplitude in response to happy prosodic information was significantly more positive for the MP3000 strategy compared to the ACE strategy. On spectral power analysis, two typical gamma activities were observed in the MP3000 users only: (1) an early gamma activity in the 100–250 ms time window reflecting bottom–up attention regulation; and (2) a late gamma activity between 900 and 1100 ms post-stimulus onset, probably reflecting top–down cognitive control. Our study suggests that the MP3000 strategy is better than ACE in regard to happy prosody perception. Furthermore, we show that EEG is a useful tool that, in combination with behavioral analysis, can reveal differences between two CI processing strategies for coding of prosody-specific features of language.
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Affiliation(s)
- D Agrawal
- Department of Neurology, Hannover Medical School, Hannover, Germany
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Körner S, Kollewe K, Ilsemann J, Müller-Heine A, Dengler R, Krampfl K, Petri S. Prevalence and prognostic impact of comorbidities in amyotrophic lateral sclerosis. Eur J Neurol 2012; 20:647-54. [PMID: 23094606 DOI: 10.1111/ene.12015] [Citation(s) in RCA: 66] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2012] [Accepted: 09/18/2012] [Indexed: 12/12/2022]
Abstract
BACKGROUND AND PURPOSE Amyotrophic lateral sclerosis (ALS) is characterized by rapidly progressive paralysis of striated muscles due to the loss of upper and lower motor neurons. The disease leads to death within 2-5 years, mainly due to respiratory failure. The pathogenesis of ALS is still unexplained for the most part. In this study, we aimed to determine the prevalence of different cardiovascular, metabolic, and neuropsychiatric comorbidities in a large ALS cohort and to evaluate their influence on the disease course. METHODS A cohort of 514 patients with ALS of our ALS outpatient clinic was investigated retrospectively with reference to known prognostic factors and comorbidities. The prevalence of concomitant diseases was compared with the data from the German general population. Uni- and multivariate survival analyses were performed using the Cox proportional hazards model and Kaplan-Meier analysis. RESULTS The prevalence of cardiovascular diseases and cardiovascular risk factors was significantly lower in patients with ALS compared to the German general population, whilst the prevalence of dementia, parkinsonism, and depressive symptoms was significantly higher in the ALS cohort. None of the investigated comorbidities had an influence on the disease course or on the survival of patients. CONCLUSIONS Persons with cardiovascular diseases or risk factors seem to be at lower risk of ALS. Although these diseases are apparently somehow protective regarding ALS susceptibility, their presence did not modify disease progression and survival in patients with ALS. Our study further confirms the well-known continuum between ALS and dementia. It also suggests a link with other neurodegenerative diseases such as Parkinson's disease.
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Affiliation(s)
- S Körner
- Department of Neurology, Hannover Medical School, Hannover, Germany.
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Dengler R. 75. Geburtstag von Prof. Reinhardt Rüdel. KLIN NEUROPHYSIOL 2012. [DOI: 10.1055/s-0032-1323706] [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: 10/27/2022]
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Timm L, Agrawal D, Wittfoth M, Dengler R. Temporal envelope perception in Cochlear Implant users. KLIN NEUROPHYSIOL 2012. [DOI: 10.1055/s-0032-1301645] [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: 10/28/2022]
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Naue N, Machts J, Becke A, Hopf JM, Petri S, Kollewe K, Dengler R, Müller N, Heinze HJ, Vielhaber S. Electrophysiological correlates of working memory performance in the course of amyotrophic lateral sclerosis. KLIN NEUROPHYSIOL 2012. [DOI: 10.1055/s-0032-1301482] [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: 10/28/2022]
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Meyer-Marcotty MV, Kollewe K, Dengler R, Grigull L, Altintas MA, Vogt PM. [Carpal tunnel syndrome in children with mucopolysaccharidosis type 1H: diagnosis and therapy in an interdisciplinary centre]. HANDCHIR MIKROCHIR P 2012; 44:23-8. [PMID: 22382905 DOI: 10.1055/s-0032-1301918] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022] Open
Abstract
Carpal tunnel syndrome is common in children with mucopolysaccharidosis type 1H (MPS type 1H). Clinical signs of carpal tunnel syndrome are frequently absent in these children and it is often very difficult to perform and interpret neurophysiological investigations. In this article we wish to present our experience and results regarding the diagnosis and postoperative results after decompression of the median nerve.In an interdisciplinary set-up we are currently treating 11 MPS type 1H children following blood stem cell transplantation. 7 patients were operated 12 times (5 bilateral operations) because of a carpal tunnel syndrome (age at the time of operation 83,3 months, (43-143 months), 2 male, 5 female). 6 patients had a follow up after 23,7 months (9-59 months). 6 patients had a histological analysis of the flexor retinaculum. Three patients had a postoperative neurophysiological investigation.Each of the operated patients had at least 1 preoperative clinical sign of a carpal tunnel syndrome. We found at least 1 pathological finding in motor and sensory nerve conduction studies in each patient. 6 of the 7 children operated on were symptom-free at postoperative follow-up. 1 of the 3 patients with a postoperative neurophysiological follow up showed a deterioration of the nerve conduction studies. This patient was free of symptoms postoperatively. Biopsy of the flexor retinaculum confirmed abundant proteoglycan deposition. We had neither postoperative complications nor were revisional operations necessary.The Diagnosis of a carpal tunnel syndrome in children with MPS Typ 1H needs a thorough medical history, the correct interpretation of the clinical symptoms and sophisticated nerve conduction studies. Wether the improvement of the postoperative clinical situation lasts has to be evaluated in a long term investigation especially because in one patient in our group we saw a deterioration of the nerve conduction studies postoperatively.
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Affiliation(s)
- M V Meyer-Marcotty
- Klinik für Plastische-, Hand- und Wiederherstellungschirurgie, Medizinische Hochschule Hannover.
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Rustamov N, Rodriguez-Raecke R, Dressler D, Dengler R, Wittfoth M. The conflict adaptation effect in Parkinson's disease. KLIN NEUROPHYSIOL 2012. [DOI: 10.1055/s-0032-1301625] [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: 10/28/2022]
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Agrawal D, Timm L, Dengler R, Wittfoth M. Emotions transfered by Cochlear Implants: an ERP study exploring the possibilities. KLIN NEUROPHYSIOL 2012. [DOI: 10.1055/s-0032-1301617] [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: 10/28/2022]
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Wittfoth M, Dengler R. P8.17 Emotions in language: new aspects of sentence processing. Clin Neurophysiol 2011. [DOI: 10.1016/s1388-2457(11)60348-9] [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: 11/28/2022]
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Cordes A, Jahn K, Hass R, Schwabe K, Ganser F, Götz F, Dengler R, Krauss J, Petri S. Intraspinal injection of human umbilical cord-derived hematopoietic stem cells in ALS. KLIN NEUROPHYSIOL 2011. [DOI: 10.1055/s-0031-1272705] [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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Kollewe K, Brandis A, Mohammadi B, Dengler R, Vogt P, Knobloch K. Cost-effectiveness of sural nerve biopsies - a single center experience. KLIN NEUROPHYSIOL 2011. [DOI: 10.1055/s-0031-1272706] [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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Dengler R. W. A. Cobb-Young Investigator Award der IFCN für Dr. Julia Jacobs, Klinik für Neuropädiatrie der Universität Freiburg. KLIN NEUROPHYSIOL 2011. [DOI: 10.1055/s-0031-1271790] [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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Johannes S, Weber A, Müller-Vahl KR, Kolbe H, Dengler R, Münte TF. Event-related brain potentials show changed attentional mechanisms in Gilles de la Tourette Syndrome. Eur J Neurol 2011; 4:152-61. [DOI: 10.1111/j.1468-1331.1997.tb00321.x] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [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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Affiliation(s)
- Z. T. Nikolova
- Department of Neurology, Medical School Hannover
- Centre for Systems Neurosciences, Hannover, Germany
| | - A. Fellbrich
- Department of Neurology, Medical School Hannover
| | - J. Born
- Department of Neurology, Medical School Hannover
| | - R. Dengler
- Department of Neurology, Medical School Hannover
- Centre for Systems Neurosciences, Hannover, Germany
| | - C. Schröder
- Department of Neurology, Medical School Hannover
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Isak B, Uluc K, Koytak PK, Sunter G, Borucu D, Tanridag T, Us O, Dengler R. P2-1 Clinical utility of F-wave duration parameters in diabetic patients with distal symmetric polyneuropathy. Clin Neurophysiol 2010. [DOI: 10.1016/s1388-2457(10)60442-7] [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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Wittfoth M, Dengler R, Kotz S. P8-21 Conflict processing of incongruent prosodic and semantic information. Clin Neurophysiol 2010. [DOI: 10.1016/s1388-2457(10)60624-4] [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: 11/28/2022]
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Dengler R, Petri S, Mohammadi B, Kollewe K. S35-3 Detection of upper motor neuron involvement in amyotrophic lateral sclerosis (ALS). Clin Neurophysiol 2010. [DOI: 10.1016/s1388-2457(10)60217-9] [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: 11/30/2022]
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Worthmann H, Tryc AB, Goldbecker A, Ma YT, Tountopoulou A, Hahn A, Dengler R, Lichtinghagen R, Weissenborn K. The temporal profile of inflammatory markers and mediators in blood after acute ischemic stroke differs depending on stroke outcome. Cerebrovasc Dis 2010; 30:85-92. [PMID: 20484906 DOI: 10.1159/000314624] [Citation(s) in RCA: 97] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2009] [Accepted: 02/26/2010] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND Early inflammation has been suggested as an important factor contributing to unfavorable prognosis after acute ischemic stroke. The present study aimed to clarify the temporal dynamics of discrete inflammatory markers/mediators for future mechanism-targeting anti-inflammatory strategies in ischemic brain damage. METHODS Blood samples of 69 patients with transient ischemic attack or ischemic stroke were taken upon admission and at time points 6, 12 and 24 h, as well as 3 and 7 days after symptom onset for analysis of monocyte chemotactic protein-1 (MCP-1), matrix metalloproteinase-9 (MMP-9), tissue inhibitor of matrix metalloproteinase-1 (TIMP-1), interleukin-6 (IL-6), C-reactive protein (CRP) and the brain damage marker S100B. Clinical scores (modified Rankin Scale, National Institute of Health Stroke Scale) were assessed on day 90. RESULTS MCP-1, MMP-9, TIMP-1, IL-6, CRP and S100B showed significantly different time courses depending on stroke outcome. While the levels of IL-6, MCP-1 and MMP-9 increased already a few hours after symptom onset, CRP and S100B gradually rose commencing at 12-24 h. TIMP-1 demonstrated an extended plateau. By multiple linear regression analysis IL-6, MCP-1, TIMP-1 and S100B were determined to be independently related to clinical outcome scores at specific time points. CONCLUSIONS Our data show important differences in the early time course of several potential markers for the complex network of inflammation and brain damage after ischemic stroke depending on stroke outcome. This must be considered for any therapeutical approach using anti-inflammatory treatment.
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Affiliation(s)
- H Worthmann
- Department of Neurology, Medical School of Hannover, Hannover, Germany.
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Ragancokova D, Song Y, Nau H, Dengler R, Krampfl K, Petri S. Modulation of synaptic transmission and analysis of neuroprotective effects of valproic Acid and derivates in rat embryonic motoneurons. Cell Mol Neurobiol 2010; 30:891-900. [PMID: 20422280 DOI: 10.1007/s10571-010-9518-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2009] [Accepted: 03/30/2010] [Indexed: 01/06/2023]
Abstract
Amyotrophic lateral sclerosis is a devastating motoneuron disorder for which no effective treatment exists. There is some evidence for neuroprotective effects of valproic acid (VPA). The beneficial effects, however, are limited due to the adverse effects of VPA. To overcome this problem, a number of VPA derivates with fewer side effects have been synthesized. In the present study, we investigated the viability of highly purified embryonic motoneurons cultured on glial feeder layers, composed of either astrocytes or Schwann cells, or in monoculture, in presence of VPA and its three derivates 3-propyl-heptanoic acid (3-PHA), PE-4-yn enantiomers (R- and S-PE-4-yn). An excitotoxic stimulus, kainate (KA), was added at day in vitro 9 (DIV9) and the neuroprotective effect of either simultaneous incubation (DIV9) or pre-incubation (DIV1) of VPA and its derivates was tested. The survival of motoneurons under simultaneous application of KA and VPA derivates was not remarkably increased. Pre-incubation with VPA and even more with the derivates before the addition of KA, however, significantly reduced their vulnerability against the KA-induced neurotoxic effect. Our data suggest that the neuroprotective capacities of VPA and its three derivates tested here drastically increase when they are added several days before KA. Most prominent neuroprotective effects were seen for the PE-4-yn enantiomers. Patch-clamp experiments revealed an antiexcitotoxic effect of the S-PE-4-yn enantiomer that reduces the frequency of postsynaptic currents and enhances the inhibitory postsynaptic transmission dependent on the co-culture condition.
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Affiliation(s)
- D Ragancokova
- Department of Neurology and Clinical Neurophysiology, Hannover Medical School, OE 7210, Carl-Neuberg-Strasse 1, 30625, Hannover, Germany.
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Kollewe K, Münte TF, Samii A, Dengler R, Mohammadi B. Functional neuroimaging at different disease stages reveals distinct phases of neuroplastic changes in amyotrophic lateral sclerosis. KLIN NEUROPHYSIOL 2010. [DOI: 10.1055/s-0030-1250904] [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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Kollewe K, Münte TF, Samii A, Dengler R, Petri S, Mohammadi B. Funktionelle Bildgebung bei der Amyotrophen Lateralsklerose: Analyse der Ruheaktivität. KLIN NEUROPHYSIOL 2009. [DOI: 10.1055/s-0029-1242754] [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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Dengler R. Nachruf: Professor Albrecht Struppler. KLIN NEUROPHYSIOL 2009. [DOI: 10.1055/s-0029-1220448] [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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Grosskreutz J, Kassubek J, Dengler R, Ludolph AC, Witte OW, Heinze HJ, Peschel T. Entwicklung der Hirnpathologie bei Patienten mit amyotropher Lateralsklerose in computergestützten MRI-Analysen. Akt Neurol 2009. [DOI: 10.1055/s-0029-1238907] [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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Worthmann H, Kempf T, Tryc AB, Goldbecker A, Ma YT, Deb M, Tountopoulou A, Dengler R, Lichtinghagen R, Wollert KC, Weissenborn K. Growth-differentiation factor-15 nach TIA oder ischämischem Schlaganfall bestimmt das klinische Outcome. Akt Neurol 2009. [DOI: 10.1055/s-0029-1238407] [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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Bolat S, Berding G, Zajaczek J, Dengler R, Stangel M, Trebst C. F18-Fluordeoxyglucose-Positronen-Emissions-Tomografie (FDG-PET) als sinnvolles diagnostisches Hilfsmittel bei Neurosarkoidose. Akt Neurol 2009. [DOI: 10.1055/s-0029-1238691] [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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Cordes AL, Krampfl K, Dengler R, Petri S. Ein (weiterer) ALS-Patient mit hereditärer Neuropathie mit Neigung zu Druckparesen. Akt Neurol 2009. [DOI: 10.1055/s-0029-1238684] [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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50
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Kollewe K, Dressler D, Dengler R, Mohammadi B. Long-term treatment with botulinumtoxin type A in non-dystonic facial spasms. Akt Neurol 2009. [DOI: 10.1055/s-0029-1238530] [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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