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  • 1
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Scandinavian journal of immunology 6 (1977), S. 0 
    ISSN: 1365-3083
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Screening for B-cell-specific antibodies in unabsorbed pregnancy sera preselected for weak reactivity in regular HLA-A, -B, and -C screening yielded a relatively high proportion (35/81) of B-cell-specific antibodies. Most B-cell-specific antibodies react broadly, showing inclusion phenomena suggesting ‘cross-reactivity’ analogous to that observed in HLA-A and -B serology. In control experiments with T-cell-enriched suspensions three antisera reacted with T cells and not with B cells. These antisera are highly associated with HLA-A2 in the unrelated population and segregate with HLA haplotypes in families and with HLA-A in a family with HLA-A, B recombination. Thus it appears that the human equivalents of la antigens may include—in analogy to the murine Ia antigens—B-cell- as well as T-cell-specific alloantigens.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Scandinavian journal of immunology 6 (1977), S. 0 
    ISSN: 1365-3083
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: The association of HLA-A and -B antigens with Bf alleles was investigated in 200 parents from 100 unrelated families. There were significant associations between HLA-A3 and Bf-F, B7 and Bf-S, B8 and Bf-S, B12 and Bf-F, and BW35 and Bf-F. Three-point HLA-A,B,Bf haplotype frequencies, linkage disequilibrium parameters, and chi-square values were determined both from the genotype and from the pheno-type data. Although the HLA-B,Bf associations involve antigens that are also present in the highly associated A,B and B,D haplotypes of the Caucasian population, there was—with the possible exception of HLA-A3,B7,Bf-S–no significant three-point association for HLA-A,B,Bf.
    Type of Medium: Electronic Resource
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  • 3
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    Unknown
    Göttingen : Periodicals Archive Online (PAO)
    Zeitschrift für Literaturwissenschaft und Linguistik. 7:25 (1977) 50 
    ISSN: 0049-8653
    Topics: Linguistics and Literary Studies
    Notes: Philologien in der Planung
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  • 4
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 267 (1977), S. 121-124 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] A possible explanation for the successful prediction of the 1975 Haicheng earthquake is that the earthquake was triggered by a deformation front that propagated 1,000 km through NE China at a velocity of about 110 km yr−1. The various phenomena that were used to predict the ...
    Type of Medium: Electronic Resource
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  • 5
    facet.materialart.
    Unknown
    Wiesbaden : Periodicals Archive Online (PAO)
    Geographische Zeitschrift. 65:1 (1977) 63 
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  • 6
    Electronic Resource
    Electronic Resource
    Springer
    Monatshefte für Chemie 108 (1977), S. 1401-1411 
    ISSN: 1434-4475
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract Preliminary results leading towards the total synthesis of Brefeldin A are presented.
    Type of Medium: Electronic Resource
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  • 7
    ISSN: 1432-0584
    Keywords: Antilymphocyte globulin ; incompatibility reactions ; immunological unrespoasiveness
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Summary Eight mongrel dogs received a standard daily i.v. infusion of 20 mg/kg b.w. deaggregated horse-anti-dog-lymphocyte-globulin (ALG) and additional prednisolone (1 mg/kg b. w. daily i.v.) over a maximum period of 82 days following pretreatment with deaggregated normal horse IgG. No sensitization against horse protein was observed during therapy or afterwards as proved by lack of humoral antibodies against horse antigens, maintained lymphopenia, good compatibility, longterm prolongation of xenogeneic skin graft survival (85.6±20.6 days, n=8; untreated controls 12.5±1.3 days, n=4) and longterm suppression of cytotoxic antibodies against donor lymphocytes. The level of preformed agglutinating antibodies against horse erythrocytes was significantly reduced, while preformed antibodies against other species remained normal. The immune response to a challenge injection of anti-lymphocyte-serum (ALS) 6–11 weeks after termination of treatment was significantly lower in the ALG treated animals as compared to the control group. These results suggest the involvement of a specific mechanism of unresponsiveness against ALG other than irnmunosuppression only. It is concluded, that by the described method sensitization against ALG can be prevented during longterm treatment.
    Notes: Zusammenfassung Acht Bastardhunde erhielten eine Standardtherapie von 20 mg/kg KG deaggregiertes Pferde-Anti-Hunde-Lymphozyten-Globulin (ALG) zusammen mit 1 mg/kg KG Prednisolon täglich i.v. über einen Zeitraum von maximal 82 Tagen. Alle Tiere wurden mit deaggregiertem Normal-Pferde-IgG vorbehandelt. Weder während noch nach Abschluß der Therapie wurde eine Sensibilisierung gegen Pferdeprotein beobachtet. Kriterien dafür waren das Ausbleiben humoraler Antikörper gegen Pferdeantigene, eine dauerhafte Lymphopenie, gute Verträglichkeit, eine erhebliche Verlängerung xenogener Hauttransplantate (85,6±20,6 Tage (n=8) gegenüber 12,5+-1,3 Tagen bei unbehandelten Kontrolltieren (n=4)) und die langzeitige Unterdrückung zytotoxischer Antikörper gegen Spenderlymphozyten. Die präformierten Agglutinine gegen Pferdeerythrozyten wurden signifikant reduziert, während die präformierten Hämagglutinine gegen andere Spezies unverändert blieben. 6 bis 11 Wochen nach Abschluß der ALG-Therapie war die Immunantwort auf eine Challenge-Injektion von Anti-Lymphozyten-Serum (ALS) signifikant schwächer als bei 5 unbehandelten Kontrolltieren. Diese Ergebnisse weisen darauf hin, daß an der Nichtreaktivität gegen ALG ein spezifischer Mechanismus beteiligt war, der sich nicht allein durch Immunsuppression erklären läßt. Mit Hilfe der beschriebenen Methode auch während einer Langzeittherapie mit ALG kann eine Sensibilisierung vermieden werden.
    Type of Medium: Electronic Resource
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  • 8
    ISSN: 1432-1912
    Keywords: Theophylline ; Isoprenaline ; Calcium ; Ouabain ; Positive inotropic effect ; c-AMP
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary The effects of theophylline (3×10−5 M–5×10−3 M), isoprenaline (10−6 M), excess calcium (7.2 mM) and ouabain (3×10−7 M) on force of contraction and c-AMP content were studied in electrically driven (frequency 3 Hz) left auricles isolated from guinea pigs pretreated with reserpine. 1. Theophylline (2×10−3 M) increased c-AMP consistently. The theophylline-induced increase in c-AMP proceeded very rapidly. It became significant after an incubation period of 5 s, reached its peak after 5 min and then remained stable. The positive inotropic effect of theophylline also developed very rapidly, reached its peak after 1 min and then declined. The increase in force of contraction corresponded to the increase in c-AMP, but the decline of the positive inotropic effect occurred while c-AMP remained elevated. 2. The concentration-response curves for the theophylline-induced increases in c-AMP and force of contraction were virtually parallel at concentrations up to 2×10−3 M. 3. Washout of the effects of theophylline on c-AMP and force of contraction was also similar. Complete reversal occurred within 15 min. 4. The effects of theophylline on c-AMP and force of contraction were not affected by 10−7 M propranolol added 30 min before theophylline. 5. Isoprenaline (10−6 M) increased c-AMP and force of contraction to approximately the same extent upon incubation for up to 30 min. 6. Ouabain (3×10−7 M) or the elevation of the extracellular calcium concentration to 7.2 mM increased the force of contraction without producing a detectable increase in c-AMP. 7. It is concluded that the theophylline-produced increase in force of contraction may be the result of an increase in c-AMP and a subsequent increase in slow inward current. This effect may be counteracted by a direct, c-AMP independent effect of theophylline on intracellular calcium stores which could account for the decline of the positive inotropic effect of theophylline during prolonged exposure and at high concentrations. 8. The present data also support the view that the positive inotropic effect of isoprenaline is mediated by c-AMP, whereas the effects of ouabain and excess calcium on force of contraction appear to be independent of the c-AMP system.
    Type of Medium: Electronic Resource
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  • 9
    ISSN: 1432-2013
    Keywords: Adrenalectomy ; Aldosterone ; Free fatty acids ; Kidney ; Lipolysis ; O2 consumption
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary The plasma level of free fatty acids (FFA) in adrenalectomized rats increases by 50% after treatment with aldosterone (2 μg/100 g rat). Lipolytic activity in peripheral fat tissue is lowered after adrenalectomy and doubles after in vivo administration of aldosterone to adrenalectomized rats (measured as free fatty acid release in vitro from epididymal fat tissue). Lypolysis of adipose tissue stimulated by the in vitro presence of ACTH also increases after in vivo administration of aldosterone. Incorporation of intravenously administered label from U14C-palmitate into total extractable lipid of renal tissue is augmented 3 h after aldosterone administration to adrenalectomized rats, while no increase of the radioactivity is observed in total lipid from liver tissue. Treatment with aldosterone does not affect the total lipid content of kidney or liver in adrenalectomized rats. The oxygen consumption rate of kidney cortex slices with lactate, β-hydroxybuterate or acetoacetate as substrates is lowered after in vivo administration of aldosterone to adrenalectomized rats. With succinate, however, the respiratory rate of kidney slices increases after aldosterone treatment of adrenalectomized rats, the ouabain-sensitive respiration being more affected than the ouabain-insensitive respiration. An interpretation of the O2 consumption data implicating competition of lipid metabolism for CoA-SH is discussed.
    Type of Medium: Electronic Resource
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  • 10
    ISSN: 1432-1459
    Keywords: Cerebral white matter ; Sphingomyelin ; Fatty acid composition ; Demyelination
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung Es wird eine Mikromethode zur Untersuchung der Fettsäurezusammensetzung von Sphingomyelin beschrieben. In der Marksubstanz von 17 normalen erwachsenen Vergleichshirnen sind die wichtigsten Fettsäuren C 18:0 und C 24:1. Unsere Ergebnisse stimmen gut mit den Ergebnissen anderer Autoren überein. Bei Kindern findet sich eine relative Vermehrung kurzkettiger Fettsäuren, diese Verschiebung ist typisch für „unreifes“ Myelin. Ähnliche Veränderungen werden hier auch bei Greisen und Fällen mit unspezifischem Hirnschaden (Autolyse), chronischer Urämie und juveniler Chorea Huntington (alle in Verbindung mit diffuser Entmarkung) beschrieben. Man kann davon ausgehen, daß die Fettsäurezusammensetzung von Sphingomyelin einen empfindlichen Maßstab sowohl für eine gestörte Myelinisierung wie auch für Demyelinisierung darstellt.
    Notes: Summary A micromethod for the investigation of the fatty acid composition of sphingomyelin is presented. In the cerebral white matter of 17 normal adult brains, analyzed for reference, the predominant fatty acids are C 18:0 and C 24:1. Our results are in agreement with those of other authors. Short chained fatty acids are relatively increased in young children; this shift is typical of “immature” myelin. Similar changes are described here in old persons and cases of non-specific brain damage associated with demyelination (autolysis, chronic uremia, juvenile chorea). Sphingomyelin fatty acid composition can be considered a sensitive measure of both disturbed myelination and demyelination.
    Type of Medium: Electronic Resource
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