34 results on '"J Kühn"'
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2. Umgang mit COVID-19 in der Notaufnahme
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H. Van Aken, S. Triphaus, D. O. Wennmann, A. Hofschröer, H. Pavenstädt, W. Hafezi, A. Mellmann, C. P. Dlugos, S. Kampmeier, J. Sackarnd, Philipp Kümpers, P. Tepasse, J. Kühn, M. Keller, and M. Hennies
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biology ,business.industry ,Emergency Nursing ,Critical Care and Intensive Care Medicine ,biology.organism_classification ,medicine.disease ,Triage ,03 medical and health sciences ,0302 clinical medicine ,Pandemic ,Emergency Medicine ,Internal Medicine ,Emergency medical services ,Medicine ,030212 general & internal medicine ,Medical emergency ,business ,Coronavirus Infections ,Betacoronavirus ,Patient isolation - Abstract
ZusammenfassungMit der COVID-19-Pandemie stehen die Notaufnahmen als Schnittstelle der ambulanten und stationären Krankenversorgung vor einer großen Herausforderung. Die Dynamik der Pandemie zwang die Notfallversorgung des Universitätsklinikums Münster zu umfassenden Anpassungsprozessen, die in kürzester Zeit erfolgen mussten. Dazu gehörte die Etablierung einer ambulanten Coronateststelle und einer studentischen Telefonhotline. Innerklinisch wurden neue Isolationskapazitäten in der Notaufnahme sowie eine eigene COVID-19-Station eingerichtet. Der Patientenfluss wurde durch Flussdiagramme sowohl für den ambulanten als auch für den stationären Bereich neu geregelt. Das allgemeine und spezielle Notfallmanagement wurde für die reibungslose Versorgung COVID-19-positiver Patienten optimiert und das Personal in der Benutzung von Schutzausrüstung trainiert. Dieser Erlebnisbericht soll anderen Notaufnahmen in der Vorbereitung auf die COVID-19-Pandemie unterstützen.
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- 2020
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3. Seltene Diagnose einer malignen Raumforderung des Samenstrangs
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F Schön, J Kühn, and R Hoffmann
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business.industry ,Medicine ,business - Published
- 2021
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4. Die seltene Differentialdiagnose der salmonellenbedingten Aortitis
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D Klenk, E Langer, D Fedders, R Winzer, S Wichmann, J Kühn, and R Hoffmann
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business.industry ,Medicine ,business - Published
- 2021
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5. Spatial arrangement of several flagellins within bacterial flagella improves motility in different environments
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Bruno Eckhardt, Kai M. Thormann, Laurence G. Wilson, Marco J. Kühn, Nicola Ellen Farthing, Bina Helm, Florian Rossmann, and Felix Schmidt
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inorganic chemicals ,0301 basic medicine ,Science ,030106 microbiology ,Mutant ,General Physics and Astronomy ,Motility ,Shewanella putrefaciens ,Flagellum ,medicine.disease_cause ,Flagellar filament ,Article ,Protein Structure, Secondary ,General Biochemistry, Genetics and Molecular Biology ,03 medical and health sciences ,Protein structure ,medicine ,lcsh:Science ,Mutation ,Multidisciplinary ,biology ,Chemistry ,General Chemistry ,biochemical phenomena, metabolism, and nutrition ,equipment and supplies ,biology.organism_classification ,Cell biology ,030104 developmental biology ,Flagella ,biology.protein ,bacteria ,lcsh:Q ,Flagellin - Abstract
Bacterial flagella are helical proteinaceous fibers, composed of the protein flagellin, that confer motility to many bacterial species. The genomes of about half of all flagellated species include more than one flagellin gene, for reasons mostly unknown. Here we show that two flagellins (FlaA and FlaB) are spatially arranged in the polar flagellum of Shewanella putrefaciens, with FlaA being more abundant close to the motor and FlaB in the remainder of the flagellar filament. Observations of swimming trajectories and numerical simulations demonstrate that this segmentation improves motility in a range of environmental conditions, compared to mutants with single-flagellin filaments. In particular, it facilitates screw-like motility, which enhances cellular spreading through obstructed environments. Similar mechanisms may apply to other bacterial species and may explain the maintenance of multiple flagellins to form the flagellar filament., It is unclear why many bacteria have more than one gene encoding flagellin, the protein that makes up flagella. Here, the authors show that a particular arrangement of two different flagellins in the polar flagellum of Shewanella putrefaciens facilitates screw-like motility through obstructed environments.
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- 2018
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6. Kontrolle der Zinktherapie bei Morbus Wilson mit dem oralen Radiokupfertest
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P. Günther, Wieland Hermann, and H. J. Kühn
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Gynecology ,medicine.medical_specialty ,business.industry ,Medicine ,Neurology (clinical) ,business - Abstract
Der Morbus Wilson ist eine seltene Kupferstoffwechselstorung, die bei fruher Diagnosestellung und konsequenter Therapie eine sehr gute Prognose hat. Nebenwirkungen oder eine nachlassende Wirksamkeit konnen Komplikationen einer medikamentosen Langzeitbehandlung sein. Besonders bei der Behandlung mit Zink haben sich Berichte uber ein Versagen der Therapie gehauft. Bei 58 Patienten mit einem Morbus Wilson unter Langzeittherapie wurde in insgesamt 91 Mal ein oraler Radiokupfertest durchgefuhrt und damit das Ausmas der enteralen Resorptionshemmung von Kupfer bestimmt. 84 Messungen erfolgten unter einer Zinkmedikation, eine unter D-Penizillamin und sechs unter einer Behandlung mit Trien. Die mit Zink behandelten Patienten zeigten in 48 Tests eine ausreichende, in 36 Fallen aber eine ungenugende Hemmung der enteralen Kupferresorption. Fur Trien konnte eine partielle enterale Resorptionshemmung von Kupfer gezeigt werden. Die Behandlung des Morbus Wilson erfordert in jedem Fall eine regelmasige Kontrolle. Der orale Radiokupfertest erlaubt eine quantitative Aussage zum Einfluss von Zink auf die Kupferresorption beim Morbus Wilson. Sein Nutzen muss durch weitere Studien naher definiert werden.
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- 2013
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7. Akute beidseitige Thrombose der tiefen Bein- und Beckenvenen bei Agenesie der Vena cava inferior
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K. Ottinger, A. Busemann, Stephan Diedrich, C.-D. Heidecke, A. Hoene, Lars Ivo Partecke, and J. Kühn
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Gynecology ,medicine.medical_specialty ,medicine.vein ,business.industry ,medicine ,Cardiology and Cardiovascular Medicine ,business ,Inferior vena cava - Abstract
ZusammenfassungEin 19-jähriger Patient stellte sich in der Klinik für Neurochirurgie mit Lumboischialgien und zunehmenden Gangbeschwerden vor. In einer konventionellen Röntgenuntersuchung der Lendenwirbel wurde kein diagnostisch wegweisender Befund nachgewiesen. Eine Mag-netresonanztomographie der Wirbelsäule zeigte eine auffällige Verbreiterung der Epiduralräume mit Vermehrung der epiduralen Venen, insbesondere auf Höhe LWK 5/SWK 1. Zur weiteren Diagnostik erfolgte die Vorstellung des Patienten in unserer chirurgischen Klinik. Eine kontrastmittelgestützte Computertomographie des Abdomens stellte den Verdacht einer ausgeprägten paraaortalen Lymphadenopathie und beidseitigen Thrombose der tie-fen Bein- und Beckenvenen. Mit einer MRT des Abdomens einschließlich einer venösen MRT-Angiographie konnten wir schließlich eine Agenesie der Vena cava inferior diagnostizieren. Bei der in der CT vermuteten Lymphadenopathie handelte es sich um dilatierte par-ziell thrombosierte Kollateralvenen. Die Thrombosebehandlung erfolgte primär mittels systemischer Antikoagulation. Anhand dieses Fallberichtes diskutieren wir die Diagnostik und Therapie der mit der Agenesie der Vena cava inferior assoziierten Thrombosen der tiefen Bein- und Beckenvenen.
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- 2012
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8. Analysis of pseudorabies and herpes simplex virus recombinants simultaneously lacking the pUL17 and pUL25 components of the C-capsid specific component
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Walter Fuchs, Barbara G. Klupp, J. Kühn, Tobias Leege, Thomas C. Mettenleiter, and Harald Granzow
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Cancer Research ,viruses ,Mutant ,Heterologous ,Herpesvirus 1, Human ,Biology ,Virus Replication ,medicine.disease_cause ,Virus ,Herpesviridae ,Cell Line ,Viral Proteins ,Virology ,medicine ,Animals ,Gene ,Sequence Deletion ,Recombination, Genetic ,Virus Assembly ,Genetic Complementation Test ,Herpesvirus 1, Suid ,Infectious Diseases ,Herpes simplex virus ,Capsid ,Viral replication ,Rabbits - Abstract
Homologs of the UL17 and UL25 gene products of herpes simplex virus 1 (HSV-1) are conserved throughout the Herpesviridae and essential for virus replication. However, their exact function is still unknown. Although both proteins form a complex on DNA-containing C-capsids defects observed in the absence of either protein differ. Absence of pUL17 from HSV-1 or the related alphaherpesvirus pseudorabies virus (PrV) precludes cleavage and packaging of newly replicated viral DNA, whereas in the absence of pUL25 genomic DNA is encapsidated but nuclear egress of capsids to the cytosol is abolished. HSV-1 pUL25 partially complemented the defect in a PrV UL25 deletion mutant indicating overlapping functions. However, reciprocal complementation did not ensue, and the present study demonstrates that UL17-deleted HSV-1 or PrV mutants are also not rescued by heterologous pUL17. To analyze whether simultaneous substitution of both complex partners may allow or increase trans-complementation we generated rabbit kidney cell lines co-expressing either PrV or HSV-1 pUL17 and pUL25, and respective HSV-1 and PrV double deletion mutants. Whereas the defects of both double mutants were trans-complemented by cell lines co-expressing the homologous complex partners, productive replication was not restored by heterologous pUL17 and pUL25. Thus, the protein complexes of PrV and HSV-1 either possess distinct functions, or require interactions with other viral proteins which are impaired in a heterologous context.
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- 2010
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9. Liquordiagnostik bei CT-negativer Subarachnoidalblutung
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A. Regeniter, Hayrettin Tumani, H.-J. Kühn, A. Petzold, Markus Otto, Johannes Brettschneider, M. Wick, and Manfred Uhr
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medicine.medical_specialty ,Pathology ,Neurology ,medicine.diagnostic_test ,Lumbar puncture ,business.industry ,General Medicine ,medicine.disease ,nervous system diseases ,Bloody ,Psychiatry and Mental health ,Cerebrospinal fluid ,Xanthochromia ,Cytology ,medicine ,Subarachnoid haemorrhage ,cardiovascular diseases ,Neurology (clinical) ,Neurosurgery ,business - Abstract
The diagnostic investigation of CT-negative subarachnoid haemorrhage (SAH) is a particular challenge in clinical neurology. Cerebrospinal fluid (CSF) analysis via lumbar puncture is the method of choice. The diagnosis of SAH in CSF is based on a bloody or xanthochromic discoloration of the CSF as well as on findings in non-automated CSF cytology including the detection of erythrophages and siderophages. The automated determination of CSF ferritin concentrations or spectrophotometric detection of xanthochromia may contribute to the diagnosis but are only useful with regard to the overall clinical picture. Generally, the knowledge of the time flow of CSF changes associated with SAH is essential for a correct interpretation of CSF findings.
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- 2010
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10. Intracellular Localization of the Pseudorabies Virus Large Tegument Protein pUL36
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Sindy Böttcher, J. Kühn, Barbara G. Klupp, Britta Sydne Möhl, Thomas C. Mettenleiter, and Harald Granzow
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Cytoplasm ,viruses ,Immunoelectron microscopy ,Amino Acid Motifs ,Green Fluorescent Proteins ,Immunology ,Biology ,Kidney ,medicine.disease_cause ,Microbiology ,Virus ,Cell Line ,Viral Proteins ,Capsid ,Virology ,medicine ,Animals ,Nuclear pore ,Microscopy, Immunoelectron ,DNA Primers ,Cell Nucleus ,Viral Structural Proteins ,Viral tegument ,biochemical phenomena, metabolism, and nutrition ,Herpesvirus 1, Suid ,Molecular biology ,Protein Structure, Tertiary ,Genome Replication and Regulation of Viral Gene Expression ,Herpes simplex virus ,Microscopy, Fluorescence ,Insect Science ,Rabbits ,Nuclear localization sequence - Abstract
Homologs of the essential large tegument protein pUL36 of herpes simplex virus 1 are conserved throughout the Herpesviridae , complex with pUL37, and form part of the capsid-associated “inner” tegument. pUL36 is crucial for transport of the incoming capsid to and docking at the nuclear pore early after infection as well as for virion maturation in the cytoplasm. Its extreme C terminus is essential for pUL36 function interacting with pUL25 on nucleocapsids to start tegumentation (K. Coller, J. Lee, A. Ueda, and G. Smith, J. Virol. 81:11790-11797, 2007). However, controversy exists about the cellular compartment in which pUL36 is added to the nascent virus particle. We generated monospecific rabbit antisera against four different regions spanning most of pUL36 of the alphaherpesvirus pseudorabies virus (PrV). By immunofluorescence and immunoelectron microscopy, we then analyzed the intracellular location of pUL36 after transient expression and during PrV infection. While reactivities of all four sera were comparable, none of them showed specific intranuclear staining during PrV infection. In immunoelectron microscopy, neither of the sera stained primary enveloped virions in the perinuclear cleft, whereas extracellular mature virus particles were extensively labeled. However, transient expression of pUL36 alone resulted in partial localization to the nucleus, presumably mediated by nuclear localization signals (NLS) whose functionality was demonstrated by fusion of the putative NLS to green fluorescent protein (GFP) and GFP-tagged pUL25. Since PrV pUL36 can enter the nucleus when expressed in isolation, the NLS may be masked during infection. Thus, our studies show that during PrV infection pUL36 is not detectable in the nucleus or on primary enveloped virions, correlating with the notion that the tegument of mature virus particles, including pUL36, is acquired in the cytosol.
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- 2009
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11. Viral reactivation is not related to septic complications after major surgical resections
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J. Haier, R. Vadonis, B. R. Eing, N. Senninger, T. Vogel, and J. Kühn
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Adult ,Male ,Microbiology (medical) ,medicine.medical_specialty ,Antibodies, Viral ,medicine.disease_cause ,Herpesviridae ,Pathology and Forensic Medicine ,Esophagus ,Postoperative Complications ,Betaherpesvirinae ,Sepsis ,Pancreatic cancer ,medicine ,Humans ,Immunology and Allergy ,Prospective Studies ,Prospective cohort study ,Pancreas ,Aged ,Aged, 80 and over ,biology ,business.industry ,Herpesviridae Infections ,General Medicine ,Middle Aged ,medicine.disease ,biology.organism_classification ,Surgery ,Transplantation ,Virus Diseases ,Surgical Procedures, Operative ,Sputum ,Female ,Virus Activation ,Viral disease ,medicine.symptom ,Complication ,business - Abstract
Anastomotic leakage and septic complications are the most important determinants of postoperative outcome after major surgical resections. Malignant diseases and surgical trauma can influence immune responses and the ability to react against infectious factors, such as bacteria and viruses. Comparable immune suppression can cause viral reactivation in transplantation and trauma patients. In this prospective study, patients who underwent major surgical resections for oesophageal or pancreatic cancer were investigated for the potential involvement of viral reactivation in the development of septic complications. 86 patients (40 oesophageal resections, 27 pancreatic resections, 19 surgical explorations) were included. Viral antigens, viral DNA, antibodies against viral structures (IgG, IgM, IgA) and, in part, viral cultivation were performed for CMV, EBV, HSV1, HSV2, HZV6 and VZV in serum, urine, sputum and swabs from buccal mucosa preoperatively and at postoperative days 1, 3 and 5. Test results were compared with the postoperative outcome (30-day morbidity, in-hospital mortality) and clinical scores (SOFA, TISS). For statistical analyses Student's t-tests and Chi2-tests were used. The overall complication rate was 19.8% (30-day morbidity) with an in-hospital mortality of 1.2% (1/86 patients). Postoperatively, anti-CMV-IgG titres were significantly reduced (p
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- 2008
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12. Pyramidale Schädigung im Vergleich zur extrapyramidalmotorischen Beeinträchtigung bei Patienten mit Morbus Wilson
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Thomas Villmann, Wieland Hermann, P. Günther, A. Bachhuber, Anja Wagner, and H. J. Kühn
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Gynecology ,medicine.medical_specialty ,business.industry ,Physiology (medical) ,Corticospinal tract ,medicine ,Neurology (clinical) ,business - Published
- 2007
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13. Computergestützte Analyse der Handschrift bei Patienten mit Morbus Wilson
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Wieland Hermann, Thomas Villmann, P. Günther, Anja Wagner, and H. J. Kühn
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Genetics ,Mutation ,Disease ,medicine.disease_cause ,Bioinformatics ,medicine.disease ,Pathophysiology ,Wilson's disease ,Handwriting ,Physiology (medical) ,Basal ganglia ,Genotype ,medicine ,Neurology (clinical) ,Psychology ,Pathological - Abstract
BACKGROUND: Wilson's disease, an autosomal recessive disorder of copper metabolism, is caused by about 250 different mutations of the ATP7B gene. METHOD: The handwriting of 36 WD patients was examined by computer-assisted writing analysis. Using a genotype-phenotype correlation, kinematic parameters were investigated to see whether the disorder of the automatic handwriting movement depends on the genotype. RESULTS: The findings of this study indicated that no such link exists concerning the H1069Q mutation. Both the profile of the impairment of the fine motor parameters and the severity and frequency of pathological findings were without preference in the three genotype groups (homozygous, compound homozygous for H1069Q and other mutations). In contrast, fine motor disorders were found to correlate with the clinical symptoms recorded when therapy began. DISCUSSION: The pathophysiology of the basal ganglia and the cerebellar loop can, therefore, not be directly attributed to the genotype of the mutation in the ATP7B gene.
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- 2007
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14. Krurale Angioplastie versus Bypasschirurgie
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J. Petersein, A. Gussmann, J. Kühn, C. Zur, P. Kemmesies, and U. Weise
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Gynecology ,medicine.medical_specialty ,business.industry ,medicine ,Surgery ,Cardiology and Cardiovascular Medicine ,business - Abstract
Hinsichtlich der Behandlung von Gefaslasionen mehren sich in der Literatur die Hinweise, dass die PTA inzwischen ahnliche Ergebnisse erreichen kann wie die Bypasschirurgie. Die durchgefuhrten Studien und die im Konsensusdokument 2007 dargestellten Therapieoptionen weisen zumindest den Weg zur Angioplastie. Vor diesem Hintergrund stellen sich zwei zentrale Fragen: Sind die mit Hilfe von Angioplastie oder Bypasschirurgie behandelten Patienten hinsichtlich der behandelten Verschlussstrecke vergleichbar? Welchen Einfluss hat die Verschlusslokalisation auf das klinische Ergebnis? Um die Fragen zu beantworten, wurden retrospektiv alle Patienten der Jahre 2001 bis 2004 analysiert, die wegen kruraler Gefasverschlusse einer PTA oder einer Bypassanlage unterzogen wurden. In diesem Zeitraum wurden insgesamt 509 Prozeduren an 445 Patienten durchgefuhrt. Eine Aufdehnungsbehandlung erfolgte bei 244 Patienten, wobei 288 Beine behandelt wurden. Ein Bypass wurde in 221 Fallen an 201 Patienten angelegt. Im Ergebnis sind beide Verfahren nur bedingt miteinander vergleichbar. Die Behandlungsmoglichkeiten sind von den Gefaslasionen abhangig, die ein Patient ausgebildet hat. Ein Vergleich der Patienten zeigt, dass Unterschiede hinsichtlich der Verschlussstrecke und des Schweregrades der Arteriosklerose bestehen. In unserem Krankengut wurden komplexere Gefaslasionen mit der Bypasschirurgie behandelt. Die Angioplastie wurde bei kurzen Stenosen oder Verschlussen bevorzugt. Die Entscheidung fur eine Angioplastie ist nur dann moglich, wenn die zu revaskularisierende Strecke problemlos mit Kathetern erreichbar ist. Vorgeschaltete Stenosen und Verschlusse der A. femoralis superficialis und der Beckenetage mussen in das Behandlungskonzept einbezogen werden. In der Unterschenkeletage ist die Angioplastie unter Berucksichtigung der morphologischen Kriterien eine berechtigte Therapieoption. Kurzstreckige Veranderungen am Unterschenkel sollten einer PTA zugefuhrt werden. Lange Verschlussprozesse, die insbesondere die vorgeschalteten Gefassegmente der A. femoralis communis superficialis und profunda einschliesen, profitieren von der Bypassvariante.
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- 2007
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15. Klinische und Genotyp-Phänotyp-Korrelation epidemiologischer, bildgebender und neurologischer Befunde bei Patienten mit Morbus Wilson
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S. Eichelkraut, H. J. Kühn, J. P. Schneider, Wieland Hermann, P. Günther, and Thomas Villmann
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Mutation ,Pathology ,medicine.medical_specialty ,medicine.diagnostic_test ,business.industry ,Magnetic resonance imaging ,Disease ,medicine.disease_cause ,medicine.disease ,Phenotype ,Wilson's disease ,Psychiatry and Mental health ,Genotype-phenotype distinction ,Neurology ,Genotype ,medicine ,Neurology (clinical) ,business ,Psychopathology - Abstract
Wilson's disease, a rare autosomal recessive disorder of hepatic copper transport, is characterized by a varying pattern of hepatic, neurologic and psychiatric symptoms. Currently, about 250 causative mutations of the ATP 7B gene are known. However, a correlation between genotype and phenotype according to these mutations is not yet clear. To elucidate a possible correlation in this study 39 patients with Wilson's disease were subdivided into three groups according to the underlying mutation in group I for homocygote respectively group II for compound heterocygote mutation in H1069Q and group III for other mutations. Clinical subtype and extent of neurologic disturbance as well as epidemiologic aspects, presence of psychiatric symptoms, results of acustically evoked potentials (Wave III, interpeak latency III-V) and findings of cranial MRI were considered. While psychopathological symptoms, the results of acustically evoked potentials and cranial MRI show a correlation to the clinical subtype of Wilson's disease there was no genotype-phenotype correlation on the basis of the mutation in H1069Q. The qualitative and quantitative pattern of results do not show any significant differences in the three groups of genotype. Thus, the time of treatment onset still has most influence on the extent of clinical manifestation and reversibility of the toxic copper accumulation.
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- 2006
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16. Isolation and Identification of Enteric Adenoviruses
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J. Kühn, H. G. Baumeister, G. Maass, R. Wigand, and H. J. Hammer
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Diarrhea ,Adenoviridae Infections ,Fluorescent Antibody Technique ,enteric adenoviruses ,Enzyme-Linked Immunosorbent Assay ,Biology ,Immunofluorescence ,Virus ,Neutralization ,Article ,Microbiology ,Cell Line ,Adenovirus Infections, Human ,Feces ,Cytopathogenic Effect, Viral ,Neutralization Tests ,Virology ,adenoviruses 40/41 ,medicine ,Humans ,immunofluorescence ,Child ,medicine.diagnostic_test ,Inoculation ,Adenoviruses, Human ,Infant ,Human physiology ,Articles ,adenovirus ,Isolation (microbiology) ,Infectious Diseases ,Adenovirus Antigen ,Cell culture ,Child, Preschool ,identification ,ELISA ,HeLa Cells - Abstract
Thirty‐four out of 64 faecal samples with adenovirus particles, as seen by electron microscopy, were found to contain adenovirus 40 or 41 by direct isolation and neutralization in Chang's conjunctival cells, mostly within one week. (Ad40 and 41 candidate viruses are serologically related.) 6 other adenovirus specics were isolated; 6 samples gave equivocal results, and 18 were negative. A genus‐specific ELISA with an antihexon coat yielded positive results in 40 out of 55 samples; the test failed to identify adenovirus antigen in 10 out of 17 specimens, which were found negative by culture. All of them were negative by immunfluorescence of inoculated Chang cell cultures. Hence the failures are probably due to insufficient amount of virus in the samples. The predominance of only two adenovirus species associated with gastroenteritis in children and the ease of cultivating and identifying them should help to elucidate their etiological significance.
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- 2005
17. Neurosyphilis oder Neuroborreliose
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M. Rytter, Wieland Hermann, H.-J. Kühn, A. C. Rodloff, and R. Blatz
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Pathology ,medicine.medical_specialty ,Treponema ,biology ,business.industry ,Immunoglobulin M Antibody ,Retrospective cohort study ,General Medicine ,biology.organism_classification ,medicine.disease ,Immunoglobulin G ,Neurosyphilis ,Psychiatry and Mental health ,Neurology ,Borrelia ,biology.protein ,medicine ,Neurology (clinical) ,Antibody ,business ,Neuroborreliosis - Abstract
We present laboratory data from 22 patients suspected of having neurosyphilis. In two cases the suspicion could not be confirmed, and in 20 cases neurosyphilis was detected. The sera from 17 patients were also assayed for Borrelia-specific antibodies. Suspicious immunoglobulin G antibody indices were detected in nine cases and a suspicious immunoglobulin M antibody index in one. In six of these, stored CSF/serum pairs were available to specify the antibodies by immunoblotting. This allowed for the identification of one patient apparently infected by both Borrelia spp. and Treponema pallidum. In all cases of newly suspected neurosyphilis, we recommend considering neuroborreliosis at the same time.
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- 2005
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18. Intrathekale IgA-Synthese und vermutete Multiple Sklerose Analyse von 14 Fällen
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H.-J. Kühn, A. Günther, Anja Wagner, and M. de Groot
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Gynecology ,medicine.medical_specialty ,business.industry ,medicine ,Neurology (clinical) ,Family Practice ,business ,Multiple sklerose - Abstract
ZusammenfassungIntrathekale IgA-Synthesen werden bei verschiedenen neurologischen Erkrankungen und bei Patienten mit Multipler Sklerose in unterschiedlicher Häufigkeit gefunden. Die Bedeutung dieses Befundes ist unklar. Ziel war es, die Besonderheiten bei Patienten mit der Verdachtsdiagnose einer Multiplen Sklerose und intrathekaler IgASynthese zu analysieren. Kriterien einer intrathekalen IgA-Synthese waren QIgA > QIgG oder lokale IgA-Synthese >10% im Reiberschema.Von 14 Fällen mit der Verdachtsdiagnose einer Multiplen Sklerose unter insgesamt 4150 Liquoranalysen der Jahre 1995 bis 1999 bestätigte sich bei allen 4 Patienten mit IgAlok >10% die Diagnose im Verlauf. Bei 5 von 10 Patienten mit QIgA > QIgG musste die Diagnose im Verlauf revidiert werden, wobei 3 Patienten an einer systemischen Autoimmunerkrankung (SLE bzw. undifferenzierte Kollagenose) mit zerebraler Beteiligung litten. Bei 2 Patienten blieb die Diagnose unklar.Die revidierten Fälle waren bei Krankheitsbeginn älter (44 vs. 28 Jahre) und zeigten keine relevante Beteiligung des visuellen Systems. Im Liquor dominierten ein monozytäres Zellbild sowie eine gestörte Blut-Liquor-Schranke. Pathologische Auto-AK-Titer fanden sich bei 2 Fällen.Aus den Beobachtungen ist abzuleiten, dass bei Dominanz einer intrathekalen IgA-Synthese (QIgA > QIgG) die Diagnose einer Multiplen Sklerose auch im Verlauf kritisch zu prüfen ist, insbesondere bei älteren Patienten. Wichtigste Differenzialdiagnose ist eine systemische Autoimmunerkrankung mit zerebraler Beteiligung.
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- 2003
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19. Atypische Gefäßversorgung aus dem Truncus coeliacus
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Lars-Ivo Partecke, Anne Glitsch, C. Rosenberg, Claus-Dieter Heidecke, J. Kühn, W. v. Bernstorff, K. Cziupka, Ralf Puls, and A. Stier
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Gynecology ,medicine.medical_specialty ,Transplant surgery ,Cardiothoracic surgery ,business.industry ,medicine ,Surgery ,Vascular surgery ,business ,Recurrent hemorrhage ,Abdominal surgery - Abstract
Ist bei einem blutenden Ulcus duodeni eine primare endoskopische Blutstillung nicht erreichbar oder kommt es zu einer Rezidivblutung, ist die operative Therapie der Standard. Eine atypische Gefasversorgung kann dabei zur Rezidivblutung fuhren. Dann ist eine Angiographie mit Intervention zielfuhrend. Im Folgenden wird uber einen Patienten mit einer seltenen atypischen arteriellen Gefasverbindung zwischen dem Truncus coeliacus und der A. gastroduodenalis, die zu Rezidivblutungen aus einem Ulcus duodeni fuhrte, berichtet.
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- 2008
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20. Ecthyma contagiosum (Orf) als ungew�hnliche Differenzialdiagnose bei Handinfektionen
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H. Rieger, Martin Langer, D. Wetterkamp, and J. Kühn
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Gynecology ,medicine.medical_specialty ,biology ,business.industry ,Orf virus ,Diagnostico diferencial ,biology.organism_classification ,Chordopoxvirinae ,Emergency Medicine ,Parapoxvirus ,Medicine ,Orthopedics and Sports Medicine ,Surgery ,business - Abstract
Der Orf der Hand ist eine Virusinfektion, die durch Kontakt mit infizierten Schafen oder Ziegen entsteht aber auch indirekt durch kontaminierte Gegenstande oder Fleisch. Die Erkrankung des Menschen wird als selten angesehen.Dies liegt moglicherweise aber auch daran, dass sie nicht in die differenzialdiagnostischen Uberlegungen einbezogen wird und eine selbstlimitierende Erscheinung ist. Ublicherweise kommt es innerhalb einiger Wochen zur Spontanheilung.Die Diagnose ergibt sich im Wesentlichen aus der Anamnese und dem klinischen Verlauf. Wichtig ist, dass man bei unklaren Handinfektionen an diese Virusgenese denkt,denn Komplikationen scheinen sich v. a. bei inadaquater Behandlung zu ergeben.
- Published
- 2003
- Full Text
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21. Partial functional complementation of a pseudorabies virus UL25 deletion mutant by herpes simplex virus type 1 pUL25 indicates overlapping functions of alphaherpesvirus pUL25 proteins
- Author
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Harald Granzow, Walter Fuchs, Thomas C. Mettenleiter, Tobias Leege, J. Kühn, and Barbara G. Klupp
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Genes, Viral ,viruses ,Immunology ,Herpesvirus 1, Human ,Viral Plaque Assay ,Biology ,medicine.disease_cause ,Transfection ,Microbiology ,Virus ,Cell Line ,Virology ,Alphaherpesvirinae ,Chlorocebus aethiops ,medicine ,Inner membrane ,Animals ,Vero Cells ,Cell Nucleus ,Viral Structural Proteins ,Mutation ,Structure and Assembly ,Virion ,biochemical phenomena, metabolism, and nutrition ,biology.organism_classification ,Herpesvirus 1, Suid ,Complementation ,Herpes simplex virus ,Capsid ,Viral replication ,Insect Science ,Rabbits ,Gene Deletion - Abstract
Homologs of the UL25 gene product of herpes simplex virus 1 (HSV-1) are highly conserved among the Herpesviridae . However, their exact function during viral replication is unknown. Current evidence suggests that in the alphaherpesvirus pseudorabies virus (PrV) the capsid-associated pUL25 plays a role in primary envelopment of DNA-containing mature capsids at the inner nuclear membrane. In the absence of pUL25, capsids were found in close association with the inner nuclear membrane, but nuclear egress was not observed (B. G. Klupp, H. Granzow, G. M. Keil, and T. C. Mettenleiter, J. Virol. 80:6235-6246, 2006). In contrast, HSV-1 pUL25 has been assigned a role in stable packaging of viral genomes (N. Stow, J. Virol. 75:10755-10765, 2001). Despite these apparently divergent functions, we wanted to assess whether the high sequence homology translates into functional homology. Therefore, we first analyzed a newly constructed HSV-1 UL25 deletion mutant in our assay system and observed a similar phenotype as in PrV. In the nuclei of infected cells, numerous electron-dense C capsids were detected, whereas primary envelopment of these capsids did not ensue. In agreement with results from PrV, vesicles were observed in the perinuclear space. Since these data indicated functional homology, we analyzed the ability of pUL25 of HSV-1 to complement a PrV UL25 deletion mutant and vice versa. Whereas a HSV-1 pUL25-expressing cell line partially complemented the pUL25 defect in PrV, reciprocal complementation of a HSV-1 UL25 deletion mutant by PrV pUL25 was not observed. Thus, our data demonstrate overlapping, although not identical functions of these two conserved herpesvirus proteins, and point to a conserved functional role in herpes virion formation.
- Published
- 2008
22. Ist die retrograde Ringdesobliteration der Beckenetage unter Angiographiekontrolle Methode der ersten Wahl?
- Author
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T. Volkmann, J. Kühn, U. Weise, and A. Gussmann
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medicine.medical_specialty ,business.industry ,medicine.medical_treatment ,Critical limb ischemia ,Collateral circulation ,medicine.disease ,Intermittent claudication ,Surgery ,Bypass surgery ,Restenosis ,Angioplasty ,medicine ,medicine.symptom ,business ,Claudication ,Endarterectomy - Abstract
Arteriosclerosis is the reason for iliac obliteration processes in 90% of the cases. The analysis of the clinical symptoms is necessary before an invasive treatment can be deployed. Depending on the grade of collateral circulation, patients suffer from various claudication symptoms. As distinct from Vollmar who classified iliac obliteration from type I–III, since 2000/2007 the TASC classification has been established. There are many invasive therapy options: angioplasty, surgical reconstruction and the combination of both can be chosen. The decision for an intervention in hemodynamic terms also depends on the risk evaluation, the expectations of the patient and the long-term patency rates. From January 2001 to September 2005, we performed remote iliac endarterectomy in a retrograde manner in 226 patients. In the same period, we treated 724 patients with iliac lesions. A total of 325 patients with type A and B lesions underwent an angioplasty. Only in 146 patients with bilateral processes including the infrarenal aorta was bypass surgery primarily necessary. The average age was 72.2 years, 149 men and 77 women. The symptoms were intermittent claudication in 67.8% and critical limb ischemia in 37.2%. Over a period of 48 months (3–48), we followed up 176 patients (77.8%). In addition to common criteria such as claudication distance, ankle pressure index and arterial pulse examination, we used duplex ultrasound. Restenosis occurred in 7 patients (4%), obliteration in 3 patients (1.7%).
- Published
- 2008
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23. AMPA receptor antagonist caroverine has no effect on hypoglycaemic counterregulation
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C Hubold, Achim Peters, J. Kühn, Manfred Hallschmid, I. Pais, H. L. Fehm, and Jan Born
- Subjects
medicine.medical_specialty ,business.industry ,Endocrinology, Diabetes and Metabolism ,Antagonist ,General Medicine ,AMPA receptor ,Pharmacology ,Endocrinology ,Internal medicine ,Internal Medicine ,medicine ,Caroverine ,business - Published
- 2007
- Full Text
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24. Neurophysiologic classification of Wilson's disease by using cluster analysis
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Thomas Villmann, P. Günther, Wieland Hermann, G. Reichel, A. Wagner, P. Baum, and H. J. Kühn
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Combinatorics ,Wilson's disease ,Physiology (medical) ,medicine ,Neurology (clinical) ,Disease cluster ,Psychology ,medicine.disease - Published
- 2006
- Full Text
- View/download PDF
25. Neurophysiologic classification of Wilson’s disease by using cluster analysis
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A. Wagner, P. Günther, Wieland Hermann, H. J. Kühn, Thomas Villmann, P. Baum, and G. Reichel
- Subjects
Combinatorics ,Wilson's disease ,Neurology ,Physiology (medical) ,medicine ,Neurology (clinical) ,Disease cluster ,medicine.disease ,Psychology ,Sensory Systems - Published
- 2007
- Full Text
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26. Continuous Filtration of Cerebrospinal Fluid (CSF-Filtration) in Fulminant Bacterial Meningitis — A New Adjuvant Therapeutic Strategy?
- Author
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P. Kalischewski, H. J. Kühn, and D. Schneider
- Subjects
business.industry ,medicine.drug_class ,medicine.medical_treatment ,Mortality rate ,Fulminant ,Antibiotics ,Chronic inflammatory demyelinating polyneuropathy ,medicine.disease ,law.invention ,Cerebrospinal fluid ,law ,Immunology ,medicine ,Bacterial meningitis ,business ,Adjuvant ,Filtration - Abstract
The introduction of antibiotics resulted in a reduced mortality rate in bacterial meningitis which, however, remained stable at 5–30% in the last 40 years, despite the development of new antibiotics [ 1, 10] . In order to influence the outcome in this disease new adjuvant strategies are required.
- Published
- 1997
- Full Text
- View/download PDF
27. Virusinfektionen beim Immunsupprimieren
- Author
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J. Kühn
- Subjects
Pulmonary and Respiratory Medicine ,Human cytomegalovirus ,Laboratory methods ,viruses ,Viral pathogenesis ,Biology ,medicine.disease ,Pathogenicity ,Virology ,Immunity ,Immunology ,medicine ,Surgery ,Antiviral treatment ,Cardiology and Cardiovascular Medicine - Abstract
A multitude of viral agents have been reported to exhibit an increased and/or modified pathogenicity in the immunocompromised host. Viral infections are of clinical importance mainly in individuals with severe defects in T cell-mediated immunity. In this group of patients infections with human herpesviruses – in particular human cytomegalovirus – and with polyomaviruses and adenoviruses cause significant morbidity and mortality. Since clinical symptoms of viral infections of the immunocompromised host frequently are non-specific, early diagnosis, prognostic estimations, and initiation and monitoring of antiviral treatment largely have to rely on laboratory methods for the direct, quantitative detection of viral agents.
- Published
- 2002
- Full Text
- View/download PDF
28. Palygorskite-cemented crusts (palycretes) in Southern Portugal
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Karl Stahr, Arieh Singer, Mehdi Zarei, J. Trommler, J. Kühn, and K. H. Papenfuss
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Soil Science ,Mineralogy ,Palygorskite ,Weathering ,Authigenic ,Environmental Science (miscellaneous) ,Feldspar ,chemistry.chemical_compound ,chemistry ,visual_art ,Clastic rock ,visual_art.visual_art_medium ,medicine ,Carbonate ,Sedimentary rock ,Duricrust ,Geology ,Earth-Surface Processes ,medicine.drug - Abstract
In the Oriola depression of Southern Portugal near the town of Evora, field examinations revealed the presence of Tertiary sedimentary deposits that had the consistency of duricrusts. These duricrusts, occurring close to the land surface, were examined in the field as well as in the laboratory, with the objective of establishing their composition and formation. Micromorphological examinations showed that the duricrusts were composed of clasts of fine sand to fine gravel sizes cemented together by a matrix dominated by either palygorskite or carbonate. The matrix : clasts ratio varied from about 1 : 3 when the cement was carbonate, to 3 : 1 or higher when the matrix was palygorskite. Occasionally the ratio in the latter was even higher. The clasts consisted of quartz, feldspar, and some Mg-rich metamorphic minerals. The palygorskite matrix fibres were arranged in mats within which they had parallel orientation. The mats or ‘domains’, which had a length of 15–25 □m and a width of about 40 □m, showed random orientation. In analogy to the term ‘calcrete’ the term ‘palycrete’ is used for the palygorskite duricrusts. The palycrete, of an average thickness of 0.5 m, frequently rested directly on the Hercynian basement rocks, and was covered by a recent solum. In the B horizons of the solum, the palygorskite appeared to undergo recent weathering and transformation into smectite. The duricrusts were proposed to have formed by authigenic calcite or palygorskite, which filled the interstices between clastic particles that had been deposited on Hercynian basement rocks following their peneplanation in the early Tertiary. The proposed environment of deposition and formation was that of an intermittent playa-lake in a semi-arid, seasonal climate, where strong evaporative processes had been active. Alteration and weathering of the mafic minerals contained in some of the clasts, in addition to interstitial solutions rich in Si and Mg, had created the chemical environment required for palygorskite neoformation. From the state of weathering–disintegration of the palygorskite in the soils formed on the palycrete, it is inferred that the environment for palygorskite neoformation had ceased to exist after palycrete formation.
- Published
- 2000
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29. P411 Quantitative analysis of movement disorders in Wilson's disease
- Author
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E.-M. Dietzmann, J. Lössner, J. Kühn, A. Wagner, and M. Reuter
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Wilson's disease ,Movement disorders ,Quantitative analysis (finance) ,General Neuroscience ,medicine ,Neurology (clinical) ,medicine.symptom ,Psychology ,medicine.disease ,Clinical psychology - Published
- 1996
- Full Text
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30. Laboratoriumspraxis bei Adenoviren
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J. Kühn, T.H. Adrian, P. Bruch, R. Wigand, and H. J. Hammer
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biology ,viruses ,Virus isolation ,virus diseases ,biology.organism_classification ,medicine.disease_cause ,Virology ,humanities ,eye diseases ,Virus ,Mastadenovirus ,Adenoviridae ,Convalescent phase ,stomatognathic diseases ,Antigen ,biology.protein ,medicine ,In patient ,Antibody - Abstract
The possibility of a rapid diagnosis of adenovirus conjunctivitis was studied by demonstrating genus-specific adenovirus hexon antigen or antihexon IgA antibodies in conjunctival secretions by an ELISA. Hexon was found in 44% of about 100 patients with adenovirus conjunctivitis, proven by virus isolation, antihexon in 53%, either one or both in 69% of the conjunctival swabs from the acute phase. Hexon was found in the acute phase more frequently, antihexon in the convalescent phase. In patients with conjunctivitis of different etiology no hexon was found, whereas antihexon IgA was found in a few cases.
- Published
- 1984
- Full Text
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31. Welche Aussagekraft haben kephalometrische Messungen am Fernröntgenprofilbild für die rekonstruktive Zahnheilkunde beim Erwachsenen?
- Author
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J Kühn
- Subjects
Gynecology ,medicine.medical_specialty ,business.industry ,medicine ,Orthodontics ,General Medicine ,Oral Surgery ,Craniometry ,business - Abstract
Es wurden 72 Fernrontgenprofilaufnahmen von unbehandelten Probanden im Alter von 18 bis 35 Jahren mit anatomisch korrekten Gebisverhaltnissen ausgewertet. Die Verteilung von mannlichen und weiblichen Probanden betrug 65,3% zu 34,7%. Mittelwert und Struung des Kondylusinzisalwinkels nachStuart werden bestatigt. Fur die Angaben vonRicketts finden sich jedoch funf deutlich abweichende Ergebnisse; es scheint also nicht moglich, Werte aus derRicketts-Analyse ohne weiteres auf eine andere Population zu ubertragen. Mit Hilfe der univariaten Varianzanalyse konnte der Einflus von Alter und Geschlecht ausgeschlossen und eine Fraktionierung der Patienten nach den drei vonRicketts angegebenen Gesichtstypen erreicht werden, die sich durch neue Mittelwerte mit geringerer Standardabweichung auszeichneten. Durch die Diskriminanzanalyse wurden anschliesend die Variablen Untergesichtshohe, Gesichtstiefe, Fazialachsenwinkel, Asthetikebene,\(\left. {\overline {\, 7 \,}}\! \right| \) zu A-PO und\(\left. {\underline {\, 1 \,}}\! \right| \) zu Xi-Punkt als maximal typtrennend bestimmt. Die errechneten Streuungen der Einzelvariablen liegen einerseits im Bereich des methodischen und subjektiven Mesfehlers, andererseits erscheinen sie noch immer sehr gros fur die Aufgabenstellung der rekonstruktiven Zahneilkunde. Die Werte fur die Frontzahngruppe erweisen den unteren Inzisivus als stabiler in seiner Position und nicht typspezifisch im Gegensatz zum oberen Schneidezahn. Die Korrelationen fur die Frontzahnmeswerte sind zwar statisch relevant, aber fur die praktische Aufgabenstellung nicht verwendbar. So erscheint auch die Anwendung des Kephalogramms weiterhin vorrangig da indiziert, wo in Zusammenarbeit von Kieferorthopaden, Gnathologen und Kieferchirurgen ausgedehnte rekonstruktive Behandlungen erforderlich werden.
- Published
- 1983
- Full Text
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32. Untersuchungen �ber die pathogene Bedeutung der weiblichen Urogenitaltrichomoniasis, speziell �ber die Beeinflussung der Fertilit�t
- Author
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J. Kühn and D. Hofmann
- Subjects
Gynecology ,medicine.medical_specialty ,business.industry ,medicine ,Obstetrics and Gynecology ,General Medicine ,business - Abstract
Die vorliegende Arbeit stellt einen Beitrag zu der Frage dar, ob Trichomonaden durch direkte Einflusnahme auf Spermatozoen eine Fertilitatsstorung herbeifuhren konnen und ob Trichomonaden zur Storung einer Schwangerschaft fuhren konnen. Es ergab sich, das Trichomonas vaginalis und Trichomonas foetus, welche beide bakterienfrei gezuchtet wurden, in unterschiedlichem Mase Fructose und Glucose verbrauchen und damit auch pH-Anderungen im Sinne einer Sauerung erzeugen. Bei Kombination von Trichomonaden und Spermatozoen fand sich im allgemeinen ein additiver Verbrauchseffekt, jedoch verbrauchte Trichomonas foetus zusammen mit Sperma nicht mehr Glucose als Trichomonas foetus allein. Hieraus, ebenso wie aus der Tatsache, das Trichomonas vaginalis und Trichomonas foetus Glucose und das Trichomonas foetus Fructose verbraucht, ergibt sich die Moglichkeit der Beeintrachtigung des Energiestoffwechsels der Spermatozoen. Hinzu tritt als Schadigungseffekt die Milieuanderung und fraglich eine toxische Wirkung der Trichomonaden. Eine Schadigung der Spermatozoen durch Trichomonaden last sich auch durch die Anteile ortsbeweglicher und unbeweglicher Spermatozoen bei Gegenwart von Trichomonaden nachweisen. Fruchtwasseruntersuchungen ergaben, das bei vaginaler Fruchtwassergewinnung reichlich Trichomonaden nachzuweisen waren, welche indessen auf sekundarer Verunreinigung durch die Scheide beruhen konnen. An sich ist Fruchtwasser ein gutes Nahrmedium fur Trichomonaden. Aus Placenta- und Eihautteilen, aus Abortmaterial einschlieslich der Organe abortierter Feten konnten keine Trichomonaden gezuchtet werden. Wahrend somit eine Beeintrachtigung der Fertilitat durch Trichomonaden nicht auszuschliesen ist, besteht kein Anhalt fur das Vorliegen von Schwangerschaftsstorungen durch Trichomonaden.
- Published
- 1966
- Full Text
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33. The Use of Western Blot Procedures in the Analysis of Herpes Simplex Virus Proteins
- Author
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K. Munk, R. Braun, J. Kühn, and G. Dunkler
- Subjects
Blot ,Herpes simplex virus ,Molecular level ,Western blot ,medicine.diagnostic_test ,medicine ,Human immunodeficiency virus (HIV) ,Membrane filter ,Biology ,medicine.disease_cause ,Virology ,Antibody reactivity - Abstract
During the past few years a multitude of different experimental approaches have been developed to assess the interaction between proteins, of which the use of cross-linking agents and immune electrophoresis are the most widespread. With the introduction of blotting techniques by electrophoretic transfer of proteins to filter membranes (Towbin et al., 1979), however, the possibility of assessing protein-protein interactions at molecular level has been extended, especially in the analysis of antibody reactivity and specificity. By the transfer of an exact image of electrophoretically separated proteins to a filter membrane, the Western blot technique offers a series of advantages in comparison with other techniques, the most obvious being the ease and practicability of the procedure and the interpretation of results. It is thus that Western blot techniques have also been widely applied to the routine diagnosis of viral infections (e.g. as confirmatory tests in the diagnosis of HIV).
- Published
- 1988
- Full Text
- View/download PDF
34. Myopathy with mitochondrial abnormalities and rimmed vacuoles
- Author
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G Oertel, J Ziegan, J Lehmann, H J Kühn, and J Lössner
- Subjects
Male ,medicine.medical_specialty ,Pathology ,Neuromuscular disease ,Vacuole ,Biology ,Pathology and Forensic Medicine ,Cellular and Molecular Neuroscience ,Mitochondrial myopathy ,Muscular Diseases ,Internal medicine ,medicine ,Humans ,Myopathy ,Energy deficiency ,Rimmed vacuoles ,Extremities ,Middle Aged ,medicine.disease ,Mitochondria, Muscle ,Organoids ,Microscopy, Electron ,Endocrinology ,Mitochondrial abnormalities ,Vacuoles ,sense organs ,Neurology (clinical) ,medicine.symptom - Abstract
A man of 44 years suffering from an exercise-induced neuromuscular disease with mitochondrial abnormalities and rimmed vacuoles is reported. The mitochondrial abnormalities and rimmed vacuoles (autophagic vacuoles) are interpreted as sequential changes of the same pathogenetic process depending on the degree of energy deficiency.
- Published
- 1986
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