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  • 1965-1969  (14)
  • 1
    Electronic Resource
    Electronic Resource
    s.l. : American Chemical Society
    Analytical chemistry 39 (1967), S. 1204-1205 
    ISSN: 1520-6882
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
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  • 2
    ISSN: 1432-1440
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Summary The question whether precipitating antibodies to extracts from human leucocytes can be detected in sera of patients with blood diseases has been answered positively in only one publication bySeligman, Grabar andBernard. Other authors came to the opinion that agglutinating and complement-fixing antibodies can occure but not precipitating antibodies. The subject of the present investigation was the application of Ouchterlony's method of precipitation in agar to prove the given question. A precondition however, was the preparation of an extract from human leucocytes with sufficient concentration of dissolved cell material which can form a visible precipitate. Human leucocytes were isolated from heparinised blood by differential sedimentation. Extraction was performed using 0,1 molar Glycine-solution according toAtchley. The ability of the extracts to get precipitated and the antigen structure of the extract were tested with anti-human-leucocyte-antisera from hyper-immunized rabbits. The immunsera reacted with the leucocyte-extracts forming several different precipitation lines. Absorption of the immunsera with human organ extracts and normal human sera showed that the extract contains two different soluble antigens which are not identical with tissue antigens of organ extracts. They probably contain specific soluble cell constituents of human leucocytes. Sera of 30 normal healthy control individuals did not precipitate with the leucocyte extracts. From an unselected material of 100 sera of our laboratory 11 sera gave positive reactions of precipitation. The sera were from cases with systemic lupus erythematodes, chronic myeloic leucemia, “idiopathic” pancytopenia and polyserositis. The reacting leucocyte antigen is not identical with desoxyribonucleic-acid and desoxyribonucleoprotein. The nature of the antigen is under investigation.
    Notes: Zusammenfassung Die Frage, ob im Serum von Kranken mit visceralem Lupus erythematodes und chronischen Blutkrankheiten präcipitierende Antikörper gegen Extrakte aus menschlichen Leukocyten auftreten können, ist bisher erst in einer Veröffentlichung vonSeligman, Grabar undBernard positiv beantwortet worden. Andere Autoren vertreten die Auffassung, daß zwar Leukocyten-Agglutinine, nicht jedoch präcipitierende Antikörper gegen lösliche Bestandteile von menschlichen Leukocyten gebildet werden können. Bei den vorliegenden Untersuchungen wurde diese Frage unter Anwendung der vonOuchterlony angegebenen Methode der Diffusion und Präcipitation im Agar-Gel untersucht. Menschliche Leukocyten wurden aus heparinisiertem Blut durch Sedimentation gewonnen. Extrakte aus Suspensionen von gewaschenen Leukocyten wurden — entsprechend einem vonAtchley angegebenen Verfahren — durch Extraktion mit 0,1 molarer Glycin-Lösung gewonnen. Die Antigen-Zusammensetzung der Extrakte wurde zunächst in Ansätzen gegenüber Immunseren von Kaninchen untersucht, die mit menschlichen Leukocyten sensibilisiert waren. Dabei wurde festgestellt, daß in den Extrakten zwei Antigen-Komponenten enthalten sind, die nicht in Extrakten aus menschlichen Organen nachgewiesen werden können. Eines der Antigene ist resistent gegenüber Behandlung mit Trypsin, Desoxyribonuclease und Ribonuclease. Nach den vorliegenden Ergebnissen besteht Wahrscheinlichkeit für die Annahme, daß es sich um ein Antigen handelt, das im Cytoplasma von menschlichen Leukocyten enthalten ist. — Untersuchungen von menschlichen Seren ergaben, daß Seren von gesunden Kontroll-Personen keine Reaktion mit Leukocyten-Extrakten zeigen. In Seren von Kranken mit Lupus erythematodes visceralis, „idiopathischer“ Agranulocytose und chronischer lymphatischer Leukämie wurde präcipitierende Antikörper gegen Leukocyten-Extrakte nachgewiesen. Es bestand keine Korrelation zu sog. „antinucleären“ Serumfaktoren. Leukocyten-Antikörper wurden auch in Seren von Kranken nachgewiesen, die nie eine Bluttransfusion erhalten hatten. Das Phänomen wird als Ausdruck einer Autosensibilisierung gegen ein cytoplasmatisches Antigen aus normalen menschlichen Leukocyten erklärt.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 214 (1967), S. 274-275 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] The appearance of the Acph-1AB or "hybrid" enzyme in the zymogram of the heterozygote probably means that acid phosphatase-1, in its active form, is at least a dimer, and that the polypeptide sub-units controlled by the Acph-1 alleles join in all possible combinations in the organism to form three ...
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 209 (1966), S. 78-79 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] The original series of patients has been extended to include 40 leukaemic and 20 normal leucocyte preparations. Not only is there an elevation of SAMe in chronic myelocytic leukaemia, but there also appears to be a decline of this substance with remission of the disease2. The mechanism and ...
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 208 (1965), S. 1297-1299 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] THE molecular weight of interferon has been investigated by a number of workers. Burke1 purified chick interferon, prepared in chick chorioallantoic membranes, twentyfold to obtain material of molecular weight 63,000, which was homogeneous in the analytical ultracentrifuge. This figure for the ...
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 208 (1965), S. 907-907 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Table 1 Percentage take Mature to immature ratio Infection length 3 3-5 0-2 29 6 to 1 1 to 13 3 to 4 20 to 1 24 and 30 weeks 30 weeks 56 weeks 23 weeks Infection level 2,500 m 5,000 m 15.000 m 1,300 m The percentage takes, relative proportions of immature to mature fluke from calves which ...
    Type of Medium: Electronic Resource
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  • 7
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 221 (1969), S. 194-195 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Viruses are very important in intensive cattle production and with the present intensification of sheep husbandry it is essential to determine where these viruses occur in sheep and if they are associated with disease. Adenoviruses have been associated with respiratory illness in man causing many ...
    Type of Medium: Electronic Resource
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  • 8
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 220 (1968), S. 85-86 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Fig. 1. Assay, using excised epicotyls of dwarf peas, of thin-layer chromatograms of the acidic diethyl ether fractions from cotyledons of chilled hazel seeds. A, From cotyledons of eight seeds after 28 days at 5 C; B, from cotyledons of five seeds after 28 days at 5 C and 2 days at 20 C; C, from ...
    Type of Medium: Electronic Resource
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  • 9
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Journal of neurochemistry 13 (1966), S. 0 
    ISSN: 1471-4159
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Type of Medium: Electronic Resource
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  • 10
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    British journal of dermatology 77 (1965), S. 0 
    ISSN: 1365-2133
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Type of Medium: Electronic Resource
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