Search

Your search keyword '"Stahl, U."' showing total 443 results
Start Over Author "Stahl, U."
443 results on '"Stahl, U."'

59. Intraossäres Hämangiom des Os Turbinale – Ein Fallbericht

Author

Slotosch, D, Meents, H, Stahl, U, and Klußmann, JP

Subjects
ddc: 610, 610 Medical sciences, Medicine
Abstract

Einleitung: Hämangiome stellen etwa 20% der gutartigen Neoplasien der Nasenhaupthöhle dar. In absteigender Häufigkeit findet man sie in der Mucosa des Septums, der lateralen Nasenwand sowie im Vestibulum. Intraossäre Hämangiome stellen etwa 0,7% der Knochentumoren [for full text, please go to the a.m. URL], 82. Jahresversammlung der Deutschen Gesellschaft für Hals-Nasen-Ohren-Heilkunde, Kopf- und Hals-Chirurgie

Published
2011
Full Text
View/download PDF

62. Kalt gestellt

Author

Uhlmann, E., Stahl, U., Hollan, R., Kristan, G., and Publica

Published
2007

68. New insights into the target site and mode of action of the antifungal protein of Aspergillus giganteus.

Author

Theis, T, Marx, F, Salvenmoser, W, Stahl, U, Meyer, V, Theis, T, Marx, F, Salvenmoser, W, Stahl, U, and Meyer, V

Abstract

The antifungal protein (AFP) secreted by Aspergillus giganteus exerts growth inhibitory effects on various filamentous fungi. In order to obtain more information on the mode of action of AFP, we used transmission electron microscopy in this study to compare the cellular ultrastructure of the AFP-sensitive Aspergillus niger and of the AFP-resistant Penicillium chrysogenum upon AFP treatment. Furthermore, AFP was localized by immunogold staining in both fungi. Severe membrane alterations in A. niger were observed, whereas the membrane of P. chrysogenum was not affected after treatment with AFP. The protein localized predominantly to a cell wall attached outer layer which is probably composed of glycoproteins, as well as to the cell wall of A. niger. It was found to accumulate within defined areas of the cell wall, pointing towards a specific interaction of AFP with cell wall components. In contrast, very little protein was bound to the outer layer and cell wall of P. chrysogenum. For future applications of AFP as an antimycotic drug, the mode of action of the protein was further characterized. The protein was found to act in a dose-dependent manner: it was fungistatic when applied at concentrations below the minimal inhibitory concentration, but fungicidal at higher concentrations. Using an in vivo model system, we were able to finally show that AFP indeed prevented the infection of tomato roots (Lycopersicon esculentum) by the plant-pathogenic fungus Fusarium oxysporum f. sp. lycopersici.

Published
2005

79. Processing effects on the nutritional advancement of probiotics and prebiotics

Author

Ananta, E., Birkeland, S.E., Corcoran, B., Fitzgerald, G., Hinz, S.W.A., Klijn, A., Matto, J., Mercernier, A., Nilsson, U., Nyman, M., O'Sullivan, E., Parche, S., Rautonen, N., Ross, R.P., Saarela, M., Stanton, C., Stahl, U., Suomalainen, T., Vincken, J.P., Virkajarvi, I., Voragen, A.G.J., Wesenfeld, J., Wouters, R., Knorr, D., Ananta, E., Birkeland, S.E., Corcoran, B., Fitzgerald, G., Hinz, S.W.A., Klijn, A., Matto, J., Mercernier, A., Nilsson, U., Nyman, M., O'Sullivan, E., Parche, S., Rautonen, N., Ross, R.P., Saarela, M., Stanton, C., Stahl, U., Suomalainen, T., Vincken, J.P., Virkajarvi, I., Voragen, A.G.J., Wesenfeld, J., Wouters, R., and Knorr, D.

Published
2004

83. The antifungal protein from Aspergillus giganteus causes membrane permeabilization.

Author

Theis, T, Wedde, M, Meyer, V, Stahl, U, Theis, T, Wedde, M, Meyer, V, and Stahl, U

Abstract

We investigated the inhibitory effects of the antifungal protein (AFP) from Aspergillus giganteus on the growth of several filamentous fungi. For this purpose, the MICs of AFP were determined and ranged from 0.1 micro g/ml for Fusarium oxysporum to 200 micro g/ml for Aspergillus nidulans. The antifungal activity of AFP was diminished in the presence of cations. We were able to show that incubation of AFP-sensitive fungi with the protein resulted in membrane permeabilization using an assay based on the uptake of the fluorescent dye SYTOX Green. No permeabilization by AFP could be detected at concentrations below the species-specific MIC. Furthermore, AFP-induced permeabilization could readily be detected after 5 min of incubation. Localization experiments with fluorescein isothiocyanate-labeled AFP and immunofluorescence staining with an AFP-specific antibody supported the observation that the protein interacts with membranes. After treatment of AFP-sensitive fungi with AFP, the protein was localized at the plasma membrane, whereas it was mainly detected inside the cells of AFP-resistant fungi. We conclude from these data that the growth-inhibitory effect of AFP is caused by permeabilization of the fungal membranes.

Published
2003

84. Klippel-Trenaunay-Syndrom

Author

Kaßberger, F., primary, Knorr, R., additional, Stahl, U., additional, Weiß, B., additional, Schroth, M., additional, Braun, K., additional, Uhlemann, F., additional, and Walka, M., additional

Published
2010
Full Text
View/download PDF

96. Processing effects on the nutritional advancement of probiotics and prebiotics

Author

Ananta, E., primary, Birkeland, S.-E., additional, Corcoran, B., additional, Fitzgerald, G., additional, Hinz, S., additional, Klijn, A., additional, Mättö, J., additional, Mercernier, A., additional, Nilsson, U., additional, Nyman, M., additional, O'Sullivan, E., additional, Parche, S., additional, Rautonen, N., additional, Ross, R.P., additional, Saarela, M., additional, Stanton, C., additional, Stahl, U., additional, Suomalainen, T., additional, Vincken, J.-P., additional, Virkajärvi, I., additional, Voragen, F., additional, Wesenfeld, J., additional, Wouters, R., additional, and Knorr, D., additional

Published
2004
Full Text
View/download PDF

98. ˵Omics″ Technologies and Their Input for the Comprehension of Metabolic Systems Particularly Pertaining to Yeast Organisms.

Author

Strack, L. and Stahl, U.

Abstract

˵Omics″ technologies comprise genomics, transcriptomics, proteomics, metabolomics and phenomics. In this review, these techniques that concentrate on aspects of the ˵course from genotype to phenotype″ are surveyed. With the aid of these global methods, it is possible to combine a collective knowledge of the investigated organism, which is necessary to understand the details of its metabolic system. Hence, the challenge is to introduce the above-mentioned studies for the determination of targets and approaches for the improvement of several organisms. In particular, for yeasts, ˵omics″ technologies can be applied well because research is advanced. For this eukaryotic model organism, an in-depth knowledge is indispensable in order to understand the metabolic fluxes better. Herein, the yeast Saccharomyces cerevisiae as well as brewing yeasts are reviewed with concern to the determination of their ˵ome″ levels. [ABSTRACT FROM AUTHOR]

Published
2011
Full Text
View/download PDF

Catalog

Books, media, physical & digital resources
See catalog results