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  • 1
    Electronic Resource
    Electronic Resource
    s.l. : American Chemical Society
    Analytical chemistry 44 (1972), S. 181-181 
    ISSN: 1520-6882
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Palo Alto, Calif. : Annual Reviews
    Annual Review of Nuclear and Particle Science 24 (1974), S. 69-100 
    ISSN: 0066-4243
    Source: Annual Reviews Electronic Back Volume Collection 1932-2001ff
    Topics: Physics
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Springer
    Langenbeck's archives of surgery 336 (1974), S. 257-267 
    ISSN: 1435-2451
    Keywords: Rat Skin Grafts ; Rat Kidney Grafts ; Lymphocytotoxic-Antibody ; Hemagglutinin Titer
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung Um die humorale Immunantwort bei der Haut- und Nieren. transplantation zu prüfen, wurde auf 10 Lewis-Ratten die Haut und bei 24 Lewis. Ratten die Nieren von LBNF,-Ratten verpflanzt. Die Hauttransplantate überlebten 8,5 ± 0,2 Tage, die Nierenempfänger 16,1 ± 1,8 Tage. Postoperativ wurden die lymphocytotoxischen Antikörpertiter sowie die Hämagglutinintiter untersucht. Am 5. Tag waren — unabhängig von Haut- oder Nierentransplantationen — die lymphocytotoxischen Antikörpertiter teilweise, die Hämagglutinintiter dagegen nicht nachweisbar. Am 7. Tag konnten wir jedoch die Antikörpertiter bei allen Empfängern nachweisen. Die humoralen Antikörpertiter stiegen bei den Nierenempfängern am 7. Tag stark an und blieben danach unverändert. Bei den Hautempfängern blieben sie dagegen sehr niedrig. Die Hämag glutinintiter ergaben einen niedrigeren Titer als die lymphocytotosischen Autikörpertiter, wenn sie auch die gleiche Tendenz wie die letzteren zeigten. Bei den zwei Empfängern, die länger als 3 Wochen überlebten, waren -von Anfang an sehr niedrige lymphocytotoxische Antikörpertiter und keine Hämagglutinintiter meßbar. Bei den Tieren, die mit Spenderlymphocyten behandelt wurden, konnten wir höhere Antikörpertiter als bei den Hautempfängern und niedrigere als bei Nierenempfängern feststellen.
    Notes: Summary To study the humoral immune response in skin and kidney transplantation, we grafted the skin of LBNT1 rats on 10 Lewis-rats and LBNF,-rat-kidneys into 24 Lewis-rats. The skin grafts survived 8.5 ± 0.2 days and the kidney recipients 16.1 ± 1.8 days. Postoperatively we examined the lymphocytotoxic antibody titers and hemagglutinin titer in the serum of recipients. On the 5th day we could detect in some of the recipients the titer of lymphocytotoxic antibody and no hemagglutinin titer, but on 7th day both antibodies in all recipients. The humoral antibody increased in the kidney recipients very rapidly on the 7th day and thereafter remained unchanged, in the skin graft recipients but they showed always very low titers. In general the hemagglutinin titers were lower than the titers of lymphocytotoxic antibody, but showed the same tendency. In the 2 kidney recipients, which survived longer than 3 weeks, the lymphocytotoxic antibody titers were very low and hemagglutinin titers undetectable. In the animals which were treated with lymphocytes of the donor type we could find higher titers of both humoral antibodies than in the skin graft-recipients and lower titers than in the kidney recipients.
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Springer
    Cellular and molecular life sciences 30 (1974), S. 727-729 
    ISSN: 1420-9071
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Résumé La conversion intramuquese du pepsinogène en pepsine a été considérée comme l'un des facteurs responsables des lésions gastriques produites par l'aspirine chez le rat. Les expériences réalisées in vitro seraient en en faveur de cette hypothèse, mais elle n'a pas pu être confirmée in vivo.
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    Springer
    Monatshefte für Chemie 102 (1971), S. 1327-1336 
    ISSN: 1434-4475
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Zusammenfassung Die für den Einbau in die Calciumphosphate der Knochensubstanz in Frage kommenden Strontiumphosphate wurden auf ihre Existenzbedingungen untersucht. Oktacalciumphosphat tauscht in verd. Lösungen einige Prozente des Calciums gegen Strontium aus. Obwohl der Struktur nach apatitartige Strontiumphosphate zwischen Sr/P=1.33 und 1.67 erhältlich sind, läßt sich ein röntgenoptisch reines Strontiumoktaphosphat nicht isolieren, jedoch ein solches mit kleinem Carbonatgehalt und — leicht — die den Calciumsalzen analogen Strontiumphosphatcarbonate verschiedener Zusammensetzung. Im Hydrothermalbereich (375o) sind je nach relativer Zusammensetzung des Strontiumphosphat-Systems SrHPO4, Sr2P2O7, Sr2(PO4)2 und Sr5(PO4)3OH stabil und gut kristallin erhältlich. Das Salz Sr6H3(PO4)5 läßt sich aus Lösungen von Strontiumphosphaten in Kohlensäure-Wasser, H2S-Wasser und in einem Barbiturat-Puffersystem rein darstellen.
    Notes: Abstract Strontium phosphates which possibly are being incorporated into the calcium phosphates of bony tissue were investigated. Octacalcium phosphate in dilute solutions exchanges a few percent of calcium against strontium. While strontium phosphates with apatite-like structures, and with ratios of Sr/P between 1.33 and 1.67 can be prepared, no pure strontium octaphosphate, as a distinctive X-ray phase can be isolated. Only preparations with small amounts of carbonate, as well as strontium phosphate carbonates analogous to the corresponding calcium salts can be obtained. At hydrothermal conditions (375o), the compounds SrHPO4, Sr2P2O7, Sr3(PO4)2 and Sr5(PO4)3OH are stable, and can be prepared in well cristallized form, depending on the relative composition of the strontium phosphate system. The salt Sr6H3(PO4)5 can be prepared in a pure state from solutions of strontium phosphates in aqueous solutions of carbonic acid, H2S and barbiturate buffer systems.
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    New York, NY [u.a.] : Wiley-Blackwell
    Journal of Applied Polymer Science 15 (1971), S. 1851-1854 
    ISSN: 0021-8995
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Thermoset poly(dipropoxylated bisphenol S-fumarate) showed an increase in heat deformation resistance over thermoset poly(dipropoxylated bisphenol A-fumarate). However, the poly(dipropoxylated bisphenol S-fumarate) required the incorporation of about 20 mole-% of dipropoxylated bisphenol A into the polyester molecule to be styrene compatible. Condensation polymerization of various ratios of the dipropoxylated bisphenols with fumaric acid was employed to prepare the polyesters. The polyesters were then thermoset by crosslinking with styrene using a peroxide initiator. The thermoset of a poly(dipropoxylated bisphenol S-fumarate), into which 20 mole-% of the dipropoxylated bisphenol A had been incorporated, had a heat distortion temperature 13°C higher than the poly(dipropoxylated bisphenol A-fumarate) thermoset.
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
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