Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 9 of 9 for “"Weak expression"”.
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Studies of the ABO and FORS Histo-Blood Group Systems: Focus on Flow Cytometric and Genetic Analysis
… GT that leaves the precursor unchanged. Weak expression of ABO antigens can be acquired or be due to polymorphisms in the ABO gene. The aim of this study was to characterise normal/weak/aberrant expression of ABO and related structures on RBCs in light of genetic variations of the ABO …
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Der Einfluß von Zytokinen und Zell-Zell-Kontakten auf die Expression von Matrix-Metalloproteinasen beim multiplen Myelom
… as non-collagenous extracellular matrix. Their expression is elevated in several tumor entities, and their influence on tumor progression and dissemination has been shown. This study has examined the expression of matrix metalloproteinases in a coculture model of the multiple myelom cell line …
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Immunohistochemical analysis of a panel of human and murine markers on xenografted human vaginal mucosa: a comparative study
… in that study were only based on the observed expression patterns of human and murine markers. Statistical assessment of immunohistochemical data had been omitted by the investigator. Therefore, the objective of this study was to further delineate the immunohistochemical profile of normal human …
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Role of downstream signal transduction molecules of congenital middle ear cholesteatoma according to its site of origin
… of cells in specialized tissues and the expression of their properties are under the control of a large number of regulatory processes and complex interactions called signal transduction. The signal transduction pathway may be initiated by the external signals such as growth factors which …
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Identifizierung regulatorischer Proteindomänen der zytolytischen Eigenschaften des humanen P2X7-Rezeptors
… couldnt mediate membrane-blebbing. The expression of the investigated P2X7-receptor-mutants was verified by western blot. After developing a suitable assay to show the cytolytic pore-formation, some hP2X7-receptor mutants were cloned and investigated. An up to now unpublished …
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CsgA, a putative signal molecule of the myxobacterium Stigmatella aurantiaca involved in fruiting : characterization of the csgA gene and influence of csgA inactivation on development
… / green). The csgA promoter seems to be very weak. Promoter activity of csgA was studied using a promoterless DtrpA-lacZ gene as reporter gene. b_galactosidase activity was very low and increased weakly at the beginning of the starvation induced development. A 0,6 kbp putative promoter region …
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Role of the Aspartyl Protease SpoIIGA in the Compartmentalization of Sigma Factor Activation During Sporulation of Bacillus subtilis
… involves a highly orchestrated program of gene expression resulting in morphological change. A key early event is the asymmetric sporulation division, which yields the smaller prespore and larger mother cell. The transcription factor σF becomes active in the prespore, and directs the …
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CD180/RP105 Toll-like Receptor (TLR) mediated signalling in Chronic Lymphocytic Leukaemia
… of the CLL clones, studies pertaining to CD180 expression in the lymphoid tissues were undertaken. Our pilot data suggests that in normal tonsils CD180 is expressed by the mantle zone (MZ) B cells and not the germinal centre (GC) B cells. However in CLL lymph nodes complete obliteration of the …
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MAPK and pro-inflammatory mediators in the walls of brain blood vessels following cerebral ischemia
… stroke. The main focus was directed towards the expression and production of cytokines and inducible nitric oxide synthase (iNOS), the activation of matrix metalloproteinases (MMPs) and mitogen activated protein kinase (MAPK) pathway because microarray work [8] and published data [9] primarily …