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Start Over Author "Kopp N." Publication Type Academic Journals
304 results on '"Kopp N."'

21. Neurology

Author

Dominguez-Roldan, J. M., Murillo-Cabezas, F., Munoz-Sanchez, A., Maestre, A., Porras, F., Santamaria-Mifsut, J. L., Facco, E., Munari, M., Baratto, F., Behr, A. U., Bruno, R., Giron, G. P., Sonnet, M. L., Perrot, D., Floret, D., Guillaume, C., Bui-Xuan, B., Vedrinne, J. M., Motin, J., Dall’Acqua, G., Cesaro, S., Giacomini, M., Allaouchiche, B., Moulaire, V., Bouffard, Y., Latronico, N., Fenzi, F., Guarneri, B., Tomelleri, G., Tonin, P., Rizzuto, N., Candiani, A., Lacguaniti, L. G., Irone, M., Zamperetti, N., Gulino, A., Pellegrin, C., Dan, M., Sandroni, C., Bareili, A., Piazza, O., Della Corte, F., Kovacs, A., Cucurachi, M., Sab J. M., Sirodot M., Straboni J. P., Dorez D., Dubols J. M., Gaussorgues Ph., Robert D., Delafosse, B., Kopp, N., Faure, J. L., Neidecker, J., Parma, A., Marzorati, S., Rampini, P. M., Egidi, M., Calappi, E., Massci, R., Montolivo, M., Gemma, M., Regi, B., Fiacchino, F., Montero, J. Garnacho, Leyba, C. Ortiz, Osuna, J. Madrazo, Jimenez, J. Jimenez, Noval, R. Leal, Hernandez, P. Chaparro, Gervaix, A., Beghetti, M., Berner, M., Schneider, A., Rilliet, B., Berré, J., De Backer, D., Moraine, J. J., Vincent, J. L., Kahn, R. J., Latour, J., Reig, A., Ribera, D., Alemañ, M. C., Basco, J. L., López, M., Pastor, M., Carrasco, F., Zaplana, J., Ruiz, M. R., Sánchez, M., Boillot, A., Capellier, G., Balvay, P., Cordier, A., Tissot, M., Barale, F., Bricchi, M., and Franceschetti, S.

Published
1992
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25. Typing prion isoforms

Author

Parchi, P., Capellari, S., Chen, S. G., Petersen, R. B., Gambetti, P., Kopp, N., Brown, P., Kitamoto, T., Tateishi, J., Giese, A., and Kretzschmar, H.

Published
1997

37. Erforschung Ti-Co-basierter, bioaktiver Auftraglötschichten auf oxidischen Hochleistungskeramiken in der Medizintechnik.

Author

Bobzin, K., Kopp, N., Wiesner, S., Puidokas, S., Samadian Anavar, S., Fischer, H., Korsten, A., and Schickle, K.

Subjects
*CERAMIC coating, *PROSTHETICS, *ARTIFICIAL implants, *BIOACTIVE compounds, *TITANIUM, *COBALT, *BRAZING
Abstract

The demand of prostheses and implants made from biomaterials grows as a result of the rising age of patients. For biomaterials, such as those found in joint- or hip-prostheses, that are in direct contact with the organism, not only mechanical stability is required, but also biocompatibility as well as their ability to support bone regeneration. Taking this into account, a thin-walled bioactive titanium cobalt-based brazing coating on high-performance oxide ceramics (Al2O3) has been developed. Here, the coating process offers an economical and at the same time technologically simple way for the coating ceramic materials. The biocompatible coating has been enhanced by addition of bioactive particles made of bioglass and calcium phosphates in order to improve bone formation. The reactions between the bioactive particles and the brazing alloys, as well as the particular melting behavior, were determined through thermo analytical methods. The structures of the brazing alloys enriched with bioactive particles were investigated through metallographical methods. The combination of three bioactive additives and two brazing alloys were analyzed in terms of their melting behavior and the resulting porosity, the parameters of the brazing process have been gradually optimized. The results show, that the combination of calcium phosphate particles and Ti-Co alloys effectively meet the requirements for a defined porous, biocompatible brazing coating. [ABSTRACT FROM AUTHOR]

Published
2014
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40. [11 -Methionine PET: dysembryoplastic neuroepithelial tumours compared with other epileptogenic brain neoplasms.

Author

Rosenberg, D. S., Demarquay, G., Jouvet, A., Le Bars, D., Streichenberger, N., Sindou, M., Kopp, N., Mauguière, F., and Ryvlin, P.

Subjects
BRAIN tumors, METHIONINE, NERVOUS system tumors, MEDICAL imaging systems, CYSTS (Pathology), ONCOLOGY
Abstract

Background and objectives: Brain tumours responsible for longstanding partial epilepsy are characterised by a high prevalence of dysembryoplastic neuroepithelial tumour (DNT), whose natural evolution is much more benign than that of gliomas. The preoperative diagnosis of DNT, which is not yet feasible on the basis of available clinical and imaging data, would help optimise the therapeutic strategy for this type of tumour. This study tested whether [11C]-methionine positron emission tomography (MET-PET) could help to distinguish DNTs from other epileptogenic brain tumours. Methods: Prospective study of 27 patients with partial epilepsy of at least six months duration related to a non-rapidly progressing brain tumour on magnetic resonance imaging (MRI). A structured visual analysis, which distinguished between normal, moderately abnormal, or markedly abnormal tumour methionine uptake, as well as various regions of interest and semiquantitative measurements were conducted. Results: Pathological results showed 11 DNTs (41%), 5 gangliogliomas (18%), and 11 gliomas (41%). MET-PET visual findings significantly differed between the various tumour types (p<0.0002), regardless of gadolinium enhancement on MRI, and were confirmed by semiquantitative analysis (p<0.001 for all calculated ratios). All gliomas and gangliogliomas were associated with moderately or markedly increased tumour methionine uptake, whereas 7/11 DNTs had a normal methionine uptake, including all six located in the mesiotemporal structures. No DNT presented with a marked MET-PET abnormality. Conclusion: Normal MET-PET findings in patient with an epileptogenic and non-rapidly progressing brain tumour are suggestive of DNT, whereas a markedly increased tumour methionine uptake makes this diagnosis unlikely. [ABSTRACT FROM AUTHOR]

Published
2005
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41. Scientific correspondence.

Author

Favereaux, A., Quadrio, I., Perret-Liaudet, A., Vital, C., Ouallet, J.C., Brochet, B., Biacabe, A.G., Petry, K.G., Kopp, N., and Vital, A.

Subjects
CREUTZFELDT-Jakob disease, PRIONS, PERIPHERAL nervous system
Abstract

Describes a case of Creutzfeldt-Jakob disease in a 57-year-old woman. Prion protein accumulation in the spinal cord and peripheral nervous system; Dominance of dysesthesia and pain in the limbs; Role of immunohistochemistry in determining prion protein deposits in the posterior roots.

Published
2003
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