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  • 1
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    German Medical Science GMS Publishing House; Düsseldorf
    In:  65. Jahrestagung der Deutschen Gesellschaft für Neurochirurgie (DGNC); 20140511-20140514; Dresden; DOCMO.11.01 /20140513/
    Publication Date: 2014-05-14
    Keywords: pedicle subtraction osteotomy ; sagittal imbalance ; ddc: 610
    Language: English
    Type: conferenceObject
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  • 2
    Keywords: PEPTIDE ; CELLS ; EXPRESSION ; CELL ; Germany ; human ; IN-VIVO ; THERAPY ; VIVO ; SAMPLE ; SAMPLES ; INFECTION ; SERA ; DOMAIN ; BINDING ; LIMITATION ; antibodies ; antibody ; NEUTRALIZING ANTIBODIES ; virus ; IDENTIFICATION ; VECTORS ; VECTOR ; EFFICIENT ; TRAFFICKING ; REGION ; REGIONS ; SURFACE ; EPITOPE ; EPITOPES ; PREVALENCE ; adeno-associated virus ; TYPE-2 ; ADENOVIRUS ; AAV ; AAV2 VECTORS ; AFFINITY ; CANINE PARVOVIRUS ; DOMAINS ; EMPTY CAPSIDS ; NEUTRALIZATION ; immunogenic epitopes ; AAV antibodies ; human serum sampl
    Abstract: The high prevalence of human serum antibodies against adeno-associated virus type 2 (AAV) vectors represents a potential limitation for in vivo applications. Consequently, the development of AAV vectors able to escape antibody binding and neutralization is of importance. To identify capsid domains which contain major immunogenic epitopes, six AAV capsid mutants carrying peptide insertions in surface exposed loop regions (I-261, I-381, I-447, I-534, I-573, I-587) were analyzed. Two of these mutants, I-534 and I-573, showed an up to 70% reduced affinity for AAV antibodies as compared to wild-type AAV in the majority of serum samples. In addition, AAV mutant I-587 but not wild-type AAV efficiently transduced cells despite the presence of neutralizing antisera. Taken together, the results show that major neutralizing effects of human AAV antisera might be overcome by the use of AAV capsid mutants
    Type of Publication: Journal article published
    PubMed ID: 14625569
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  • 3
    ISSN: 1432-0878
    Keywords: Hypophysis, pars distalis ; Somatotropic and prolactin cells ; Immunofluorescence ; Monkey, Macacus irus
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary Using antibodies against human growth hormone and ovine prolactine, it is possible to identify somatotropic and prolactin cells in the anterior lobe of the hypophysis (pars distalis) of the monkey, Macacus irus. These cells are present in both adult and infant male and female monkeys. The density of the somatotropic cells is greater at the periphery of the anterior lobe. Prolactin cells are of two types: one type is dispersed throughout the pars distalis and consists of small and large cells, the other type forms clusters of large cells.
    Type of Medium: Electronic Resource
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  • 4
    ISSN: 1432-0878
    Keywords: Monkeys ; Vervet (Cercopithecus aethiops) ; Baboon (Papio hamadryas) ; Gonadotropic cells ; Pars distalis ; Immunofluorescence
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Description / Table of Contents: Résumé Des anticorps anti-LH ovine, anti-βLH ovine et anti-βFSH humaine ont été utilisés pour localiser les cellules gonadotropes dans la pars distalis de l'hypophyse des Singes Cercopithecus aethiops et Papio hamadryas. Trois catégories cellulaires distinctes, réagissant avec des anticorps anti-hormones gonadotropes, ont été observées. 85% des cellules immunoréactives identifiées en tant que cellules gonadotropes réagissent simultanément avec les différents anticorps mentionnés; 10% des cellules gonadotropes réagissent seulement avec l'anticorps anti-βoLH et 5% de ces cellules seulement avec l'anticorps anti-βhFSH. La comparaison avec des coupes adjacentes traitées par divers anticorps autres que les anticorps anti-gonadotropines prouve que les “cellules gonadotropes” de ces Singes ne réagissent jamais simultanément avec l'un ou l'autre de ces anticorps.
    Notes: Summary Antisera against oLH1, βoLH and βhFSH were used to localize gonadotropic cells in the pars distalis of Cercopithecus aethiops and Papio hamadryas. Three separate cell types were observed for FSH and LH: 85% of immunohistochemically identified gonadotropic cells reacted to all the various antisera; 10% reacted with the anti-βLH antibody only; and 5% with the anti-βhFSH antibody only. Comparisons between adjacent serial sections treated with various antisera, other than anti-gonadotropic hormones, demonstrated that the “gonadotropic cells” of these monkeys did not respond to these antisera.
    Type of Medium: Electronic Resource
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  • 5
    ISSN: 1432-0878
    Keywords: Pars tuberalis ; Immunofluorescence ; Gonadotropic cells ; βLH, βFSH ; Monkey, Macaca irus
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Description / Table of Contents: Résumé La pars tuberalis de l'hypophyse du Singe Macacus irus entoure la tige infundibulaire jusqu'à l'éminence médiane. En techniques histologiques, elle apparaît constituée de plusieurs assises cellulaires d'aspect “chromophobe”. On y observe quelques cellules PAS-positives réagissant simultanément avec le bleu Alcian (pH3.0). En technique d'immunofluorescence indirecte, des cellules dispersées sont mises en évidence uniquement avec un anticorps anti-βoLH; ces cellules ne réagissent pas avec un anticorps anti-βhFSH. L'utilisation d'anticorps anti-hGH, anti-hPRL, anti-ACTH, anti-MSH, anti-LPH et antiendorphines ne permet pas de révéler des cellules immunoréactives. Quelques cellules réagissant avec un anticorps anti-βhTSH s'observent à la base de la tige hypophysaire (zona tuberalis), c'est-à-dire au-delà de la pars tuberalis proprement dite. Ces résultats sont confrontés à ceux rapportés dans la littérature.
    Notes: Summary The pars tuberalis of the hypophysis in the monkey Macaca irus encompasses the hypophysial stem up to the median eminence. Histologically, it consists of several layers of chromophobic cells. A few PAS1-positive cells also stainable with Alcian blue (pH 3.0) can be observed among the unstained elements. Using the indirect immunofluorescence antibody technique, scattered immunoreactive cells were revealed with the anti-βoLH antibody; these cells did not react with the anti-βhFSH antibody. In contrast, the immunoreactions to anti-hGH, anti-hPRL, anti-ACTH, anti-MSH, anti-LPH and anti-endorphin sera were completely negative. Single cells reacting with the anti-βhTSH serum were observed at the inferior end of the hypophysial stalk (zona tuberalis), i.e., beyond the pars tuberalis proper. These results are compared with data reported in the literature.
    Type of Medium: Electronic Resource
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  • 6
    ISSN: 1432-0878
    Keywords: Pituitary cells ; Hamster ; Concentric lamellar formations
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Description / Table of Contents: Résumé Des formations lamellaires concentriques, issues du reticulum endoplasmique, sont décrites dans des cellules antéhypophysaires chez le Hamster doré. Ces formations sont en continuité avec le reticulum endoplasmique de la cellule. Elles sont plus fréquentes pendant l'hiver et semblent se modifier à la fin de l'hiver. Après une comparaison avec les données de la littérature, le rôle et l'origine des formations lamellaires concentriques sont discutés.
    Notes: Summary Concentric lamellar formations arising from and remaining in continuity with the endoplasmic reticulum have been observed in anterior pituitary cells of the golden hamster. They have more frequently been observed during the winter and appear to change at the end of winter. Their role and origin have been discussed.
    Type of Medium: Electronic Resource
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  • 7
    ISSN: 1420-8903
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mathematics
    Type of Medium: Electronic Resource
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  • 8
    ISSN: 1434-601X
    Keywords: PACS. 21.60.Ev Collective models – 21.60.Jz Hartree-Fock and random-phase approximations – 21.10.Re Collective levels and giant resonances – 21.10.Ky Static electromagnetic moments
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract: The isospin dependence of shell closure phenomena is studied for light neutron-rich nuclei within a microscopic self-consistent approach using the Gogny force. Introducing configuration mixing, 32Mg is found to be dynamically deformed, although the N = 20 spherical shell closure persists at the mean-field level for all N = 20 isotones. In contrast, the N = 28 spherical shell closure is found to disappear for N - Z≥ 10 whereas deformed shell closures are preserved and lead to shape coexistence in 44 S. Configuration mixing shows that the ground state of this nucleus is triaxially deformed. The first 2+ excitation energy Ex = 1.46 MeV and the reduced transition probability B(E2;0+ gs→ 2+ 1)= 420 e 2 fm 4 obtained with our approach are in good agreement with experimental data.
    Type of Medium: Electronic Resource
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  • 9
    ISSN: 1434-601X
    Keywords: PACS:25.85.-w Fission reactions – 21.10.-k Properties of nuclei; nuclear energy levels – 21.60.-n Nuclear-structure models and methods – 23.20.-g Electromagnetic transitions – 84.60.-h Direct energy conversion and storage
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract: Isomeric states have been observed in fission-fragments produced by spontaneous fission of 252Cf. These states are found in neutron rich nuclei of different structure and deformations. About 50 isomeric nuclei have been observed using coincidences between γ-rays identified in EUROGAM II and fission fragments detected in photovoltaic cells (SAPhIR). Lifetimes in the range from 20 ns to 2μs have been measured. Presented calculations based on HFB +D1S force on new measured isomeric states in the 152,154,156Nd show evidence for K-isomers.
    Type of Medium: Electronic Resource
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  • 10
    ISSN: 1573-5044
    Keywords: 5-azacytidine ; betacyanins ; betaxanthins ; differentiation ; 3-methoxybenzamide ; red beet cells
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Red beet cell lines exhibiting a range of cell colours were generated from secondary callus via specific induction methods. Phenotype colour ranged from white/green through yellow, orange and red to deep violet, representing all types of pigments found in red beet plant. Specific phenotypes could only be obtained through specific induction sequences and once established were stabilised by cultivation on a maintenance medium. The ratio of auxin (2,4-D) to cytokinin (6-BAP) was an important factor in the control of these processes. All coloured phenotypes were linked, but could be classified into two main groups, one yellow-red and the other orange-violet, according to their different cellular morphologies. A certain amount of instability still existed within each group. Modification of the growth regulator composition could be used to interchange specific combinations of coloured phenotypes, depending upon the initial state of cellular differentiation. Use of the DNA-methylation inhibitor 5-azacytidine demonstrated that methylation plays a key role in the repression of genes encoding enzymes involved in betacyanin biosynthesis. Furthermore, the poly(ADP-ribose) polymerase inhibitor 3-methoxybenzamide blocked the induction of the same gene set in a concentration dependent manner without affecting cell growth.
    Type of Medium: Electronic Resource
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