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  • 1975-1979  (4)
  • 1955-1959  (2)
  • 1978  (4)
  • 1957  (2)
  • 1
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 272 (1978), S. 359-359 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] We titrated the proliferative response of rat thymus lymphocytes to concanavalin A with various concentrations of glucose and cytochalasin B (Fig. 1). In the absence of cytochalasin B, the effect of glucose was biphasic, while little DNA synthesis was observed in the absence of added glucose. Very ...
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 276 (1978), S. 167-168 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] The experimental system has been described previously4. Excited states were produced by electron irradiation with a pulse of high energy electrons. Concentrations and kinetics of the transient species were established by optical absorption spectroscopy, and a pulsed dye laser and an optical ...
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Springer
    Cellular and molecular life sciences 13 (1957), S. 311-311 
    ISSN: 1420-9071
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Zusammenfassung Die überwiegenden Bestandteile des Zahnsteins sind Apatit, magnesiumhaltiger Whitlockit mit rund 7 Atomprozent Magnesium und (nur in der Mandibularregion) Brushit. Als untergeordneten Bestandteil haben wir in 48 von 124 untersuchten Zahnsteinproben auch Tetracalcium-hydrogen-triphosphat-trihydrat gefunden.
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Springer
    Diabetologia 14 (1978), S. 325-328 
    ISSN: 1432-0428
    Keywords: Diabetes ; hypertrophy ; kidney ; nephrectomy ; rat
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary The kidney growth seen after the induction of experimental diabetes in rats has been compared to the compensatory renal growth after one-sided nephrectomy. After five days the kidney weight had increased from 650 ± 15 mg in a group of controls to 778 ± 21 mg in diabetic rats, and 764 ±17 mg in unilaterally nephrectomised rats. The increased weight was in both groups reflected in an increased DNA content and increased RNA/DNA and protein/DNA ratios. In a group of rats made diabetic and nephrectomised at the same time, kidney weight increased to 953 ± 22 mg after five days. When rats were unilaterally nephrectomised after 20 days of untreated diabetes, compensatory growth was much more pronounced than in non-diabetic rats, kidney weight rising from 780 ± 21 to 1144 ± 39 mg in five days. Similarly, in rats with established compensatory renal hypertrophy, diabetes induced a very rapid growth of the remaining kidney (1226 ± 46 mg after five days).
    Type of Medium: Electronic Resource
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  • 5
    ISSN: 1432-0428
    Keywords: Growth hormone ; diabetic microangiopathy ; basement membrane thickening ; experimental diabetes ; glomerular basement membrane
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Injection of porcine growth hormone (200 μg) or saline 5 days a week for 16 to 20 weeks in streptozotocin-diabetic rats showed that compared to saline growth hormone produced a 2 1/2-fold larger increase in glomerular capillary basement membrane thickness (2p=0.027). The possible significance of this effect of an elevated level of growth hormone for diabetic microangiopathy is discussed.
    Type of Medium: Electronic Resource
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  • 6
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Es wird gezeigt, daß in wäßrigen Lösungen von TiCl3 in allen Konzentrationsbereichen wesentliche Anteile von Hydrolyseprodukten vorhanden sind, so daß derartige Lösungen zum Studium der Lichtabsorption definierter Komplexionen des Ti(III) ungeeignet sind. Für die erste Hydrolysenstufe des Ions [Ti(H2O)6]3+ wird eine Hydrolysenkonstante zwischen 1,3 und 0,5 · 10-4 wahrscheinlich gemacht.Das Absorptionsspektrum wäßriger Lösungen von TiCl3 ist in seinem langwelligen Bereich gegen Symmetrieänderungen in erster Sphäre der in den Lösungen vorliegenden Komplexionen (hervorgerufen z. B. durch Hydrolyse) vergleichsweise unempfindlich.Die Darstellung des Hexaharnstoff-Titan(III)-jodids, [Ti(ha)6]J3, wird beschrieben. Die Ergebnisse magnetischer und röntgenographischer Untersuchungen werden mitgeteilt.Das Absorptionsspektrum des [Ti(ha)6]3+-Komplexions in Lösung sowie das Spektrum des kristallisierten Komplexsalzes zeigt eine Bande mit deutlicher Doppelstruktur bei etwa 600 mμ.Die Änderungen des Hexaharnstoff-Titan(III)-Spektrums in wäßriger Lösung infolge Aquotisierung sind denjenigen im Spektrum des entsprechenden Chrom(III)-hexaharnstoff-Komplexes weitgehend ähnlich.Es gelingt, die Absorptionseigenschaften von Titan(III))-Komplexen der Koordinationszahl 6 mit sechs gleichen Dipolliganden (H2O, ROH, CO(NH2)2) mit Hilfe von Symmetriebetrachtungen auf der Grundlage der elektrostatischen Theorie zu verstehen.
    Additional Material: 13 Ill.
    Type of Medium: Electronic Resource
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