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  • 1985-1989  (5)
  • 1
    Electronic Resource
    Electronic Resource
    Unusual MR manifestations of neurocysticercosis (1989)
    Springer
    Neuroradiology 31 (1989), S. 396-402 
    Details
    ISSN: 1432-1920
    Keywords: Cysticercosis ; MR
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary MR and CT features of neurocysticercosis are variable and depend fundametally on the stage in evolution of the infection, location, number and size of the worm. The authors retrospectively evaluated MR images obtained on a 2.0T superconducting unit in 22 neurocysticercosis patients and observed various MR features including some new findings. A variety of MR findings are presented with special reference to six case reports. The features include: (1) a large simple cyst containing both internal septations and a scolex; (2) suprasellar racemose cysts mimicking other cysts, (3) a fourth ventricular cyst readily depicted by aid of CSF flow-void in the sagittal plane; (4) degenerating cysts showing “white target” appearance; (5) granulomatous lesions having a “black target” appearance; and (6) a meningitic form showing Gd-DTPA enhancement of basal cisterns and of a subacute infarct.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00343863
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Biological conversion of rifamycin B by live Humicola sp. cells immobilized in a dual hollow fiber bioreactor (1988)
    Springer
    Bioprocess and biosystems engineering 3 (1988), S. 159-163 
    Details
    ISSN: 1432-0797
    Source: Springer Online Journal Archives 1860-2000
    Topics: Process Engineering, Biotechnology, Nutrition Technology
    Notes: Abstract The biological transformation from rifamycin B to rifamycin S was carried out with the live whole cells of Humicola sp., ATCC 20620, immobilized in a dual hollow fiber bioreactor (DHFBR). Humicola sp., inoculated in the DHFBR, proliferated successfully to a high density cell mass within the space between an outer silicone tubing and three inner polypropylene hollow fiber membranes. In order to control the cell growth a nitrogen deficient medium was fed. Conversion of rifamycin B continued for more than 30 d, whereas that of immobilized rifamycin B oxidase lasted only for 3 d in comparable conditions. In the DHFBR the volumetric productivity of rifamycin S was 0.65–1.03 mmol/(dm3 · h) with 60% conversion, while that in the rotating packed disk reactor was 0.27 mmol/(dm3 · h) with 40% conversion at a residence time of 0.5–1.5 h.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00379651
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    Paper (German National Licenses)
    Fulltext
  • 3
    Electronic Resource
    Electronic Resource
    Computed tomography of cavernous sinus diseases (1988)
    Springer
    Neuroradiology 30 (1988), S. 319-328 
    Details
    ISSN: 1432-1920
    Keywords: Cavernous sinus ; Computed tomography
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary We retrospectively analyzed CT scans of 21 cavernous sinus lesions in an attempt to discover CT findings helpful to the differential diagnosis. With the integration of various CT observations it was possible to categorize the lesions into inflammatory, vascular, benign neoplastic and malignant metastatic lesions with few exceptions. Four of 5 cases of septic cavernous sinus thrombophlebitis revealed unilateral or bilateral multiple irregular filling defects in the enhancing cavernous sinus with or without orbital inflammatory change. Four of 5 cases of carotid-cavernous fistula demonstrated unilateral or bilateral diffuse bulging and homogeneous enhancement of the cavernous sinus with obliteration of normal low densities of cranial nerves and gasserian ganglion. Dilatation and tortuosity of superior ophthalmic vein were also associated. Four of 5 cases of benign neoplastic lesion showed well-circumscribed enhancing masses confined to the cavernous sinus with pressure erosion or hyperostosis of adjacent bone. Five of 6 cases of malignant metastatic lesion showed changes suggesting malignancy such as destruction of adjacent bone or associated manifestations of intracranial spread. As compared with the axial scan, coronal scans proved to be more sensitive in detection of subtle cavernous sinus expansion, and superior in evaluation of intracavernous neural structures, relationships with the pituitary gland and changes in the skull base. Axial scans, however, were superior in detection of associated orbital and intracranial abnormalities. Scans in both projections are needed in the evaluation of most cavernous sinus diseases.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00328183
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    Paper (German National Licenses)
    Fulltext
  • 4
    Electronic Resource
    Electronic Resource
    Monoclonal antibody to human lysosomal α-glucosidase in immunocytochemistry: unexpected reactivity with cytoskeletal structures (1985)
    Springer
    Journal of molecular histology 17 (1985), S. 1043-1052 
    Details
    ISSN: 1573-6865
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary A well-characterized monoclonal antibody against human lysosomal α-glucosidase has been used for the immunohistochemical localization of the enzyme in cultured human skin fibroblasts. Under conditions that are routinely used for the preparation of cells for immunocytochemistry, this monoclonal antibody does not react with acid α-glucosidase but in contrast with components of the cytoskeleton. Double-labelling experiments with the monoclonal antibody and rabbit anti-vimentin antiserum identified the cytoskeletal components as intermediate filaments. The implications of this observation for the use of monoclonal antibodies in immunocytochemistry in general are discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01417953
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    Paper (German National Licenses)
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  • 5
    Electronic Resource
    Electronic Resource
    Plasmid maintenance and growth of recombinantSaccharomyces cerevisiae producing hepatitis B virus surface antigen (1986)
    Springer
    Biotechnology letters 8 (1986), S. 385-390 
    Details
    ISSN: 1573-6776
    Source: Springer Online Journal Archives 1860-2000
    Topics: Process Engineering, Biotechnology, Nutrition Technology
    Notes: Summary The effects of host strains (Saccharomyces cerevisiae) and medium composition on the plasmid stability and expression level of hepatitis B virus surface antigen were investigated. Specific growth rates of cells carrying a plasmid, pMHBS, was found to be slower than those without the plasmid. It was also found that the plasmid was maintained in a more stable manner in the selective medium. The nonselective complex medium, however, was greatly favored for the growth of recombinant hosts as well as the HBsAg production.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01026737
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    Paper (German National Licenses)
    Fulltext
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