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  • 1
    Electronic Resource
    Electronic Resource
    Electron microscopic studies of the early cellular events occurring in oral mucosa of rats affected by graft-versus-host disease (GVHD) (1997)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of oral pathology & medicine 26 (1997), S. 0 
    Details
    ISSN: 1600-0714
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Previous histologic studies of tongue lesions in graft-versus-host disease (GVHD) in non-irradiated (Brown Norway×Lewis) F1 rats given parental spleen cells have demonstrated an increase in the number of MHC class II+ cells with dendritic shape in the lamina propria to be the earliest event in the development of the lesion. We studied this histologic finding by electron microscopy lo increase understanding of the early cellular events occurring in the lesion. Electron microscopically, the most prominent cell type observed in the lamina propria was the ceil with a dendritic shape. These dendritic cells possessed large nuclei that often showed irregular indentations and ample cytoplasm containing numerous filaments and mitochondria. A few lysosomal or phagocytic structures were also seen in the cytoplasm. No Birbeck granules were identified. These findings were very similar to those of indeterminate cells in the epidermis and dermis. Our data strongly support the hypothesis that MHC class IP cells with dendritic shape present antigen during the induction of local immunological responses in the tongue of GVHD rats.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1600-0714.1997.tb00027.x
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  • 2
    Electronic Resource
    Electronic Resource
    Monoclonal antibodies against glutaraldehyde-conjugated histamine: application to immunocytochemistry (1997)
    Springer
    Histochemistry and cell biology 107 (1997), S. 39-45 
    Details
    ISSN: 1432-119X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Abstract  We have developed mouse monoclonal antibodies (AHA-1–5, all IgG1 sub-isotype mAbs) against histamine (HA) conjugated to bovine serum albumin using glutaraldehyde-NaBH4. Among these, AHA-1 mAb was found to be the most useful for HA immunocytochemistry (ICC) in terms of specificity and sensitivity without non-specific immunobinding. AHA-1 was demonstrated to be specific to HA with an enzyme-linked immunosorbent assay (ELISA) binding test, simulating the ICC of tissue sections, and not reactive to any of the other amino acids and peptides with N-terminal histidine tested. By use of this antibody, indirect immunoperoxidase staining was observed in rat stomach fixed with glutaraldehyde (GA) in combination with NaBH4 reduction. In contrast, no immunoreactivity was seen in tissue fixed only with GA. Absorption controls indicated that the immunostaining could be completely inhibited by GA-conjugated HA, which was consistent with the results of an ELISA inhibition test. No cross-reactivity occurred with other GA-conjugated amino acids. ICC staining was dense in the cytoplasm of gastric enterochromaffin-like cells and very weak in mast cells. A new finding was that staining was noticed in some cell bands of the intermediate layer between the stratum lucidum and the stratum corneum of the stratified squamous epithelium of the gastric cardia, esophagus, tongue, and skin in rats. The results strongly suggest that the monoclonal antibody allowed highly specific detection of HA in animal tis- sues.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s004180050087
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Tetralogy of Fallot with Levoatrial Cardinal Vein (1999)
    Springer
    Pediatric cardiology 20 (1999), S. 136-138 
    Details
    ISSN: 1432-1971
    Keywords: Key words: Tetralogy of Fallot — Levoatrial cardinal vein — Anomalous systemic and pulmonary venous connection
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract. A levoatrial cardinal vein is a rare congenital anomaly of the systemic veins. It is frequently associated with left-side obstructive anomalies. We report a case of tetralogy of Fallot with a levoatrial cardinal vein. The innominate vein was absent and two left upper pulmonary veins connected to this vein. There were no left-side obstructive anomalies.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s002469900421
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  • 4
    Electronic Resource
    Electronic Resource
    A clinico-pathological study of cervical myelopathy in rheumatoid arthritis: post-mortem analysis of two cases (1999)
    Springer
    European spine journal 8 (1999), S. 46-53 
    Details
    ISSN: 1432-0932
    Keywords: Key words Rheumatoid arthritis ; Cervical spine ; Subluxation ; Myelopathy ; Necropsy
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Two patients who developed cervical myelopathy secondary to rheumatoid arthritis were analyzed post mortem. One patient had anterior atlanto-axial subluxation (AAS) combined with subaxial subluxation (SS), and the other had vertical subluxation (VS) combined with SS. In the patient with AAS, the posterior aspect of the spinal cord demonstrated severe constriction at the C2 segment, which arose from dynamic osseous compression by the C1 posterior arch. A histological cross-section of the spinal cord at the segment was characterized by distinct necrosis in the posterior white columns and the gray matter. In the patient with VS, the upper cervical cord and medulla oblongata showed angulation over the invaginated odontoid process, whereas no significant pathological changes were observed. At the level of SS, the spinal cord was pinched and compressed between the upper corner of the vertebral body and the lower edge of the lamina. Histologically, demyelination and gliosis were observed in the posterior and lateral white columns.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s005860050126
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  • 5
    Electronic Resource
    Electronic Resource
    Properties and catalytic activity of NOx reduction of alumina-titania catalysts prepared by sol-gel method (1999)
    Springer
    Journal of materials science 34 (1999), S. 2529-2534 
    Details
    ISSN: 1573-4803
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Abstract The alumina-titania catalysts were prepared from various alumina and titania sources by sol-gel method, which were metal alkoxide and metal alkoxide modified with organic groups. Specific surface area, pore size distribution, solid acidity and catalytic activity of NO reduction for the alumina-titania catalysts depended on the alumina and titania sources. The alumina-titania catalyst prepared from metal alkoxide for alumina source and metal alkoxide modified with organic groups for titania source exhibited higher activity of NO reduction than the other alumina-titania catalysts. Catalytic activity of NO reduction for the alumina-titania catalysts depended on specific surface area and solid acidity. It was suggested that solid acidity of the alumina-titania catalysts depended on the coordination structure of Al atoms and the homogeneity of alumina and titania components.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1004632211927
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    Paper (German National Licenses)
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  • 6
    Electronic Resource
    Electronic Resource
    Thermodynamic Properties for R-404A (1999)
    Springer
    International journal of thermophysics 20 (1999), S. 129-140 
    Details
    ISSN: 1572-9567
    Keywords: correlation ; equation of state ; R-125 ; R-134a ; R-143a ; R-404A ; thermodynamic properties
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract An 18-coefficient modified Benedict–Webb–Rubin equation of state has been developed for R-404A, a ternary mixture of 44% by mass of pentafluoroethane (R-125), 52% by mass of 1,1,1-trifluoroethane (R-143a), and 4% by mass of 1,1,1,2-tetrafluoroethane (R-134a). Correlations of bubble point pressures, dew point pressures, saturated liquid densities, and saturated vapor densities are also presented. This equation of state has been developed based on the reported experimental data of PVT properties, saturation properties, and isochoric heat capacities by using least-squares fitting. These correlations are valid in the temperature range from 250 K to the critical temperature. This equation of state is valid at pressures up to 19 MPa, densities to 1300 kg·m−3, and temperatures from 250 to 400 K. The thermodynamic properties except for the saturation pressures are calculated from this equation of state.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1021434415173
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    Paper (German National Licenses)
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