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  • 1990-1994  (1)
  • 1950-1954  (2)
  • Organic Chemistry  (2)
  • Müller cells  (1)
  • 1
    Electronic Resource
    Electronic Resource
    Morphology and distribution of Müller cells in the retina of the toad Bufo marinus (1993)
    Springer
    Cell & tissue research 272 (1993), S. 183-192 
    Details
    ISSN: 1432-0878
    Keywords: Retina ; Müller cells ; Neuron-specific enolase ; Immunocytochemistry ; Quantitative analysis ; Ultrastructure ; Bufo marinus (Anura)
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Abstract We have previously shown that an antibody against neuron-specific enolase (NSE) selectively labels Müller cells (MCs) in the anuran retina (Wilhelm et al. 1992). In the present study the light- and electron-microscopic morphology of MCs and their distribution were described in the retina of the toad, Bufo marinus, using the above antibody. The somata of MCs were located in the proximal part of the inner nuclear layer and were interconnected with each other by their processes. The MCs were uniformly distributed across the retina with an average density of 1500 cells/mm2. Processes of MCs encircled the somata of photoreceptor cells isolating them from each other by glial sheath, except for those of the double cones. Some of the photoreceptor pedicles remained free of glial sheath. Electron-microscopic observations confirmed that MC processes provide an extensive scaffolding across the neural retina. At the outer border of the ganglion cell layer these processes formed a non-continuous sheath. The MC processes traversed through the ganglion cell layer and spread beneath it between the neuronal somata and the underlying optic axons. These processes formed a continuous inner limiting membrane separating the optic fibre layer from the vitreous tissue. Neither astrocytic nor oligodendrocytic elements were found in the optic fibre layer. The significance of the uniform MC distribution and the functional implications of the observed pattern of MC scaffolding are discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00323585
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Untersuchungen über asymmetrische Synthesen VI. Der Reaktionsmechanismus und der sterische Verlauf der asymmetrischen Cyanhydrin-Synthese (1954)
    New York, NY : Wiley-Blackwell
    Helvetica Chimica Acta 37 (1954), S. 1634-1660 
    Details
    ISSN: 0018-019X
    Keywords: Chemistry ; Organic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Es wurde der sterische Verlauf der asymmetrischen Synthese von Benzal-milchsäure-nitril aus Zimtaldehyd und Cyanwasserstoff in Chloroform-Lösung in Gegenwart von China-Alkaloiden eingehender untersucht.
    Additional Material: 6 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/hlca.19540370608
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Untersuchungen über asymmetrische Synthesen V. Über den sterischen Verlauf der Reduktion von α-Ketosäure-estern optisch aktiver Alkohole mit Lithiumaluminiumhydrid (1954)
    New York, NY : Wiley-Blackwell
    Helvetica Chimica Acta 37 (1954), S. 221-224 
    Details
    ISSN: 0018-019X
    Keywords: Chemistry ; Organic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Die Phenylglyoxylsäure-ester des (-)-Menthols, des (+)-Borneols und des α-Amyrins geben der Reduktion mit Lithiumaluminium-hydrid optisch aktive Phenyl-äthandiole-(1,2). Die Konfiguration der bei der Reduktion im Überschuss entstehenden Antipoden des Phenyl-äthandiols-(1,2) steht in Übereinstimmung mit der früher entwickelten Anschauung über den sterischen Verlauf ähnlicher asymmetrischer Synthesen.
    Additional Material: 1 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/hlca.19540370127
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    Paper (German National Licenses)
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