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  • 1
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Annals of the New York Academy of Sciences 177 (1971), S. 0 
    ISSN: 1749-6632
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Natural Sciences in General
    Type of Medium: Electronic Resource
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  • 2
    ISSN: 1432-8798
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary.  Different patterns of disease were observed among 11 chimpanzees who were inoculated intravenously with hepatitis E virus (HEV) positive fecal specimens from four different outbreaks (Nepal 1981, Uzbekistan 1981, Pakistan 1985, and Mexico 1986). Five chimpanzees had marginal or no liver enzyme elevations within 70 days of inoculation. Two of the chimpanzees had limited viremia, but did not produce detectable antibody. The four remaining chimpanzees had liver enzyme elevations, viral shedding, viremia, seroconversion to anti-HEV, and detectable HEV antigen in liver biopsy specimens. These results may reflect the range of infection patterns that develop in humans after natural exposure to the HEV.
    Type of Medium: Electronic Resource
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  • 3
    ISSN: 1432-8798
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary A 1700 base cDNA fragment coding for the putative structural gene(s) of hepatitis E virus (HEV) was inserted into the pATH 10 expression vector. The fusion protein (C2) expressed by this plasmid was found to contain epitopes recognized by anti-HEV antibodies. C 2 protein was used in a Western blot format to examine its usefulness in detecting anti-HEV antibodies in well documented human cases of HEV and non-human primates infected with HEV. Both IgM and IgG anti-HEV could be detected in our Western blot assay. This Western blot assay was found not to detect antibodies from acute-phase sera from patients with either HAV or HBV. The C 2 protein contains broadly cross-reactive epitopes, and the Western blot assay was able to detect anti-HEV antibodies in patient sera from Asia, Africa, and North America. The optimum serum dilution for the detection of both IgM and IgG was 1:25.
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Springer
    Virchows Archiv 344 (1968), S. 331-345 
    ISSN: 1432-2307
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Summary Hyaline droplets and protein-containing vacuoles were produced in adrenocortical cells of female albino rats by methylandrostenediol administration. The lesions were shown to be invariably negative with the method for alkaline phosphatase, but they showed a varying degree of positive staining with the reactions for acid phosphatase and nonspecific esterases. The denser and more regular “droplets” tended to exhibit a more regular and stronger enzymatic activity, whereas the lesions of the “vacuole” type containing a less dense, presumably watery material; those regarded as “younger” were only faintly, if ever, positive with the methods for acid hydrolases. With the immunohistochemical method the authors were able to demonstrate the presence of homologous plasma proteins within the lesions. Most of the droplets and vacuoles were shown to contain albumin, and some of them could be demonstrated to contain also globulin and fibrin in varying amounts. The simultaneous use of different antibodies labelled with contrasting fluorescent dyes as fluorescein isothiocyanate and lissamine rhodamine B 200, disclosed that most droplets were composed of a mixture of plasma proteins. With that method, it was possible to visualise inhomogeneities in the composition of droplets which largely corresponded to those described previously in preparations stained with conventional histological techniques as well as with some histochemical methods. The authors conclude that this type of intracellular “hyaline” deposit represents a rather common reaction of adrenocortical cells and that it is comparable to the protein absorption droplets, phagosomes and their subsequent developmental stages known in other organs, thus being related to the pinocytotic-lysosomal system of the adrenocortical cell.
    Notes: Zusammenfassung Durch Verabreichung von Methylandrostenediol entstanden hyaline Tröpfchen und eiweißhaltige Vacuolen in Nebennierenrindenzellen bei weiblichen weißen Ratten. Die cytoplasmatischen Ablagerungen zeigten keine positive alkalische Phosphatasereaktion bei entsprechenden Färbungen, jedoch eine positive Farbreaktion bei saurer Phosphatase und unspezifischer Esterase. Die dichteren und regelmäßigeren Tröpfchen wiesen eine gleichmäßigere und kräftigere Fermentaktivität auf. Dagegen enthielten die vacuolären Ablagerungen wasserhaltige Substanzen. Die als frischer abgefaßte Ablagerungen war enauf saure Hydrolasen schwach positiv. Mit immunohistologischen Methoden konnte man nachweisen, daß sie homologes Plasmaeiweiß enthielten. In den meisten Vacuolen fanden sich ausschließlich Albumine, einige enthielten jedoch auch Globuline und Fibrin in unterschiedlicher Menge Die gleichzeitige Verwendung von verschiedenen, mit FITC und LRB 200 markierten Antikörpern erbrachte den Nachweis, daß die Tröpfchen aus einer Plasma-Eiweiß-Mischung bestanden. Durch die immunohistologische Methode wurde deutlich gemacht, daß die Tröpfchen nicht homogen sind. Man darf annehmen, daß die intracellulären „hyalinen“ Ablagerungen eine gewöhnliche Reaktion der Nebennierenrindenzellen darstellt, die mit den Eiweiß-resorption-Tröpfchen, Phagosomen und deren weiteren Entwicklungsstadien wie sie in anderen Organen vorkommen, vergleichbar sind. So werden diese Gebilde mit dem pinocytär-lysosomalen System der Nebennierenrindenzelle in Bezug gebracht.
    Type of Medium: Electronic Resource
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