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  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Cellular and molecular life sciences 44 (1988), S. 853-857 
    ISSN: 1420-9071
    Keywords: ELISA ; mouse test ; potency ; rabies ; vaccine
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary Eight different rabies vaccines were tested for their potency in the standard mouse potency test using 3-, 5- and 7-week-old mice. 5-week-old mice seem to be best suited for this purpose, variability from test to test could be reduced considerably. An ELISA was used in parallel for the evaluation of the rabies glycoprotein content of rabies vaccines. Results of the mouse potency test correlated well with those of the ELISA if highly purified human vaccines were tested. Unspecific reactions in the ELISA caused by adjuvanted veterinary vaccines could not be blocked. Further experiments will be needed in order to evaluate the potency of inactivated veterinary rabies vaccines by a in vitro test.
    Type of Medium: Electronic Resource
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  • 2
    ISSN: 1432-0533
    Keywords: Canine distemper encephalitis (CDE) ; Immunopathology ; Demyelination ; Immunoglobulin ; Local immune response
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary White matter lesions were induced in the brains of eight of nine dogs by means of experimental canine distemper virus (CDV) infection. Dogs were killed at 21, 24, 31, and 42 days after infection. Lymphocyte responsiveness to Con A and PHA stimulation in vitro was severely suppressed up to 31 days post infection (p.i.), followed by partial recovery as tested at 42 days p.i. Anti-CDV neutralizing antibody response was very weak in most dogs. There was a weak increase in antimyelin and antimyelin basic protein antibodies in most dogs during the course of the experiment. Dogs killed up to 31 days p.i. developed non-inflammatory demyclinating lesions in which no immunoglobulin could be detected. One of the three dogs that were killed at 42 days p.i. developed severe inflammatory demyelination. This was the only dog with a strong anti-MBP antibody response in the CSF and immunoglobulin demonstrated in demyelinating lesions. The present study supports previous observations that demyelination in acute CDV infection is not an immune mediated lesion but that these lesions may progress as a result of the local immune response. It is uncertain at this stage whether the local immune reaction specifically causes myelin destruction or whether bystander demyelination occurs in chronic CDE.
    Type of Medium: Electronic Resource
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  • 3
    ISSN: 1432-0533
    Keywords: Canine distemper encephalitis (CDE) ; Immunopathology ; Demyelination ; Immunoglobulin ; Local immune response
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Nine dogs with canine distemper encephalitis (CDE) were examined with immunological techniques including demonstration of antibodies against canine distemper virus (CDV) in the serum and against myelin basic protein (MBP) in serum and in CSF. Mitogen stimulation tests of lymphocytes were also done. The brains were examined pathologically and immunoglobulin and C3 were demonstrated in lesions by means of immunohistological techniques. Six dogs with acute CDE had none or low antibody levels against CDV or MBP, and there was no immunoglobulin in demyelinating lesions. Some of these dogs had depressed lymphocyte mitogen responses. Two dogs with chronic CDE showed recovery of lymphocyte mitogen responses. One of these had a significant antibody response against CDV and MBP in the serum. Both dogs with chronic CDE had very high antibody titers against MBP in the CSF and demyelinating lesions contained immunoglobulin. These results suggest that acute demyelination in CDE is probably due to some direct viral activity and that the progression of demyelination in chronic CDE is associated with a local immune response.
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Amsterdam : Elsevier
    Theriogenology 25 (1986), S. 439-443 
    ISSN: 0093-691X
    Keywords: IBR/IPV virus ; bovine semen ; transmission
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Medicine
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    Springer
    Histochemistry and cell biology 35 (1973), S. 273-281 
    ISSN: 1432-119X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Description / Table of Contents: Zusammenfassung Es wurden Milchdrüsen von gesunden, laktierenden Kühen ohne Berücksichtigung des Alters und des Laktationsstadiums untersucht. Mit der direkten Immunfluoreszenzmethode konnten Casein und β-Lactoglobulin in den Epithelzellen nachgewiesen werden. Für die Präparatherstellung eigneten sich die Formalin-oder Alkoholfixation mit Paraffineinbettung am besten. Beide Proteine wurden während der ganzen zwölfstündigen Zwischenmelkzeit von allen Drüsenzellen synthetisiert. Bei einer Milchstauung (24–48 Std ohne Milchentzug) wird die Produktion von Casein und β-Lactoglobulin in den Milchdrüsenzellen eingestellt.
    Notes: Summary Fluorescein isothiocyanate labeled anti-casein and anti-β-laotoglobulin were applied in a system of direct staining to sections of bovine mammary gland. The following methods of tissue preparation were compared: cryostat sectioning, freeze substitution and fixations followed by paraffin embedding. Formalin, 95% ethanol, Bouin's, Carnoy's and solutions containing mercury salts were employed in tissue fixation. Formalin or 95% ethanol fixation with paraffin embedding proved to be the most satisfactory techniques. Both casein and β-lactoglobulin were detected in all secretory epithelial cells with brightest fluorescence in the apical cytoplasm. Similar fluorescence occurred in milk retained within alveolar lumina. Both proteins could be located in alveolar epithelial cells at any time between normal milkings (12 hour intervals) but not when milking was delayed to 24–48 hours. In the latter situation epithelial cells became flattened.
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    Springer
    Cellular and molecular life sciences 42 (1986), S. 100-100 
    ISSN: 1420-9071
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Type of Medium: Electronic Resource
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