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  • 1990-1994  (6)
  • 1945-1949
  • 1993  (6)
  • 1
    Electronic Resource
    Electronic Resource
    Does pertussis infection induce manifestation of allergy? (1993)
    Springer
    Journal of molecular medicine 71 (1993), S. 208-213 
    Details
    ISSN: 1432-1440
    Keywords: Allergy ; Whooping cough ; Pertussis toxin ; IgE
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary To evaluate whether pertussis induces the development of allergy, a prospective study was performed in 25 children aged 0.8–12.2 years. The patients underwent allergy diagnostics during pertussis infection and at a follow-up visit 8–14 months later. Diagnostic criteria included the medical history of the patients and their families, a modified skin prick test, measurement of serum IgE and radio-allergosorbent test screening for specific sensitizations. At the time of pertussis, serum IgE concentration in the study group was 62+ 30 kU/ml. At the follow-up visit, there was a significant increase in serum IgE to 137 ± 51 kU/ml, which was also significantly higher than IgE in an age-matched control group. Children at a significantly higher risk for developing IgE increase or new allergic sensitizations were those with a family history of allergy or potentially allergic disease in their personal history. Our results indicate that pertussis may induce IgE production in affected children.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00180103
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  • 2
    Electronic Resource
    Electronic Resource
    Solitary versus multiple cholesterol gallbladder stones (1993)
    Springer
    Journal of molecular medicine 71 (1993), S. 423-434 
    Details
    ISSN: 1432-1440
    Keywords: Cholecystolithiasis ; Supersaturation ; Gallstones ; Cholesterol ; Cholecystitis ; Occlusion of the cystic duct
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary The development and growth pattern of solitary and multiple cholesterol gallbladder stones was defined using cholecystography in a prospective study of 48 patients whose initial cholecystograms indicated a stone-free gallbladder and who developed gallstones within the subsequent 5 years. Radiological observations performed over 365 patient-years were complemented by macroscopic examination, radiograms, scanning electron microscopy, and chemical analysis of gallstones from these and other patients obtained at cholecystectomy. Solitary gallstones were found to develop after a precursor phase of over 2 years during which free-floating crystal laminae of cholesterol formed. These laminae subsequently aggregated loosely and underwent external compaction and internal remodeling by movement of cholesterol molecules to form compact spheroids. A single lamina was observed to function as a nucleus for the development of a solitary stone shaped as an ellipsoid. About 10% of solitary stones were found to have a solitary pigment stone in their center. In contrast, multiple cholesterol gallstones formed without a precursor phase. Innumerable, very thin cholesterol crystals appeared which very abruptly aggregated to form spheres of up to 1 mm in diameter. Within 3 months a second aggregation took place in which these spheres coalesced to form mulberry stones. Mulberry stones in turn were transformed either to faceted stones (if many were present in the gallbladder) or to barrel stones (if few were present) over a period of 3 years. It is proposed that temporary occlusion of the cystic duct leads to supersaturation of bile with calcium bilirubinate and/or calcium carbonate which in turn promotes deposition of either or both of these calcium salts on the surface of single or multiple gallstones. For multiple gallstones, this process or the deposition of additional cholesterol crystals seals the gallstone surface and is followed by metamorphosis of the stone center.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00180054
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Evaporation causes flare-related radio burst continuum depressions (1993)
    Springer
    Solar physics 145 (1993), S. 151-168 
    Details
    ISSN: 1573-093X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract We study the active region NOAA 6718 and the development of a (2N, M3.6) flare in radio and Hα. Due to our knowledge of the magnetic field structure in the active region we are able to associate the different radio flare burst components with the stages in the Hα flare evolution. A discussion of the data in terms of chromospheric flare kernel heating reveals that in the present case the observed flare-related radio burst continuum switch-off is caused by the penetration of hot, ablated gas into the coronal radio source.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00627991
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  • 4
    Electronic Resource
    Electronic Resource
    Recombinant immunoblot in the serodiagnosis of Lyme borreliosis (1993)
    Springer
    Medical microbiology and immunology 182 (1993), S. 255-270 
    Details
    ISSN: 1432-1831
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract A recombinant immunoblot was developed for detection of IgM and IgG antibodies in patients with Lyme borreliosis. The recombinant antigens were the chromosomal-encodedBorrelia burgdorferi proteins p100, the flagellin and an internal flagellin fragment thereof as well as the plasmid-encoded outer surface proteins A (OspA) and C (OspC). A panel of 144 sera from patients with Lyme borreliosis (erythema migrans,n = 31; neuroborreliosis state II,n = 60; Lyme arthritis,n = 24 and acrodermatitis chronica atrophicans,n =19) have been investigated and the results have been compared to the immunofluorescence absorption test (IFA-ABS) and to two different enzyme-linked immunosorbent assays [the flagellin ELISA and a newly developed ELISA (OGP-ELISA)]. The two ELISAs were comparable in sensitivity, whereas the IFA-ABS was less sensitive for IgM antibody but equally sensitive for IgG antibody detection. Immunoblot analysis revealed that IgG antibodies are mainly reactive with p 100 and the internal flagellin fragment (sensitivity 51% and 32%, respectively) and rarely with OspC (14%). All patients with late Lyme borreliosis had IgG antibodies against the p100. IgM antibodies were predominantly directed against OspC (43%) and in a lower extent against the internal flagellin fragment and p100 (15% and 13%, respectively). The complete flagellin was not useful due to a high number of unspecific reactions with control sera and the OspA was only exceptionally reactive in Lyme borreliosis patients. The sensitivity of IgM antibody detection could be increased in cases with early Lyme borreliosis from 46% to 65% when the OspC blot was performed in addition to the flagellin ELISA, or from 56% to 65% when performed in addition to the OGP-ELISA. The recombinant blot is, therefore, a valuable diagnostic test to increase sensitivity of early antibody detection and is regarded as a valuable confirmatory test also in late disease.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00579624
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  • 5
    Electronic Resource
    Electronic Resource
    F. Sanches, M. Collados, and M. Vazquez (eds.),solar observations: techniques and interpretation (first canary islands winter school of astrophysics), with 4 authors, Cambridge University Press, 1992, xii + 246 pp., US $64.95, ISBN 0 521 40251 4 hardback (1993)
    Springer
    Astrophysics and space science 201 (1993), S. 151-151 
    Details
    ISSN: 1572-946X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00626987
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  • 6
    Electronic Resource
    Electronic Resource
    Zum promotierenden Einfluß von Molybdaten in Multikomponent-Molybdat-KatalysatorenHerrn Prof. Dr. W. Pritzkow zum 65. Geburtstag gewidmet (1993)
    New York, NY : Wiley-Blackwell
    Journal für Praktische Chemie/Chemiker-Zeitung 335 (1993), S. 699-704 
    Details
    ISSN: 0941-1216
    Keywords: Chemistry ; Organic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: The Mutual Promotion Effect of Molybdates in Multicomponent Molybdate CatalystsMulticomponent molybdate catalysts (e.g. of the composition Bi2Fe1,5Co7Cr10Mo19Oy) are produced by coprecipitation, drying and calcination. These catalysts exhibit high activity and selectivity in the ammoxidation of propene to acrylonitrile. The individual molybdates (Co-, Fe- and Cr-molybdate) exhibit no selectivity in the ammoxidation of propene. Therefore a mutual promotion effect of these molybdates exists. The cause of the promotion effect is the formation of the active and selective phase from the β-phase of Co-molybdate by exchange of protons with ions of Fe3+ and Cr3+ from the molybdates of Fe and Cr. The structure of this catalytic active and selective phase is similar to the structure of the β-phase of Co-molybdate.
    Additional Material: 7 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/prac.19933350809
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