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  • 1
    Electronic Resource
    Electronic Resource
    Behaviour of Carbonic Anhydrase in the Uterus of Hens during Moult (1966)
    [s.l.] : Nature Publishing Group
    Nature 209 (1966), S. 304-304 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Fig. 1. Carbonic anhydrase activity in the tubular glands of the uterus of a laying hen, ( x 270) Fig. 2. lleduced eai^nic anhydrase activity in the tubular glands of a moulting hen. Capillaries filled with enzyme-active erythrocytes. ( 270) This work was supported by a grant from the ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/209304a0
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Fluoreszenzmikroskopische Untersuchungen am peripheren vegetativen Nervensystem (1961)
    Springer
    Journal of neural transmission 22 (1961), S. 300-311 
    Details
    ISSN: 1435-1463
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Summary Investigations on the duodenum of the cattle have shown that it is possible to demonstrate the vegetative periphery and especially its net formations with the method of fluorescent microscopy using “Pyronin extra”. The method is described and compared with silver-impregnations of the same section. The results are discussed and illustrated.
    Abstract: Résumé Des recherches au niveau du duodénum du boeuf ont démontré que la «Pyronin extra» se prète favorablement à la mise en évidence au microscope de fluorescence de la périphérie neuro-végétative, tout particulièrement de ses formations réticulaires. Une description est donnée de la possibilité d'application de ce procédé et elle est comparée avec les imprégnations argentiques du même objet. Les résultats photographiés sont discutés.
    Notes: Zusammenfassung Die Anwendungsmöglichkeit eines fluoreszenzmikroskopischen Verfahrens mit Pyronin extra zur Darstellung der vegetativen Peripherie, insbesondere deren Netzbildungen, nach Untersuchungen am Duodenum des Rindes wird beschrieben und mit am selben Objekt vorgenommenen Imprägnierungen verglichen. Die Ergebnisse werden erörtert und bildlich aufgezeigt.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01227288
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    45. Kohlensäureanhydra-tase in der menschlichen nasenschleimhaut (1967)
    Springer
    European archives of oto-rhino-laryngology and head & neck 188 (1967), S. 436-438 
    Details
    ISSN: 1434-4726
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01278554
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    Isolation, culture, and preliminary characterization of ellipsoids (sheathed capillaries of Schweigger-Seidel) of the pig spleen (1984)
    Springer
    Histochemistry and cell biology 81 (1984), S. 291-295 
    Details
    ISSN: 1432-119X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary Whole isolated ellipsoids (sheathed capillaries of Schweiger-Seidel) of the pig spleen were explanted in Medium 199 containing 20% fetal calf serum or horse serum respectively. Cultures were kept in a gas phase of 5% carbon dioxide in air at 37°C. After about 4 days in culture the outgrowth of two morphologically different cell types was apparent. Small cells of fusiform or stellate morphology disalayed high activity of acid phosphatase. N-acetyl-β-glucosaminidase and β-glucuronidase activity were also detectable. Furthermore these cells were highly reactive for unspecific esterase and γ-glutamyl transpeptidase activity. Endogenous peroxidase activity was present in the cytoplasm and in the perinuclear space. Stellate cells therefore are thought of as ellipsoid macrophages. Additional observations reported are the expression of Fc-receptors on stellate cells. They triggered the phagocytosis of opsonized test particles. The second cell type showed fibroblastic morphology. The large well spread cells did exhibit low activities of acid phophatase and N-acetyl-β-glucosaminidase. The other enzyme activities examined were not detectable. The nature of these cells is not well understood at present. Most likely they are constituents of the framework of the ellipsoids. No transitions between stellate cells and fibroblastic cells were found.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00495642
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    Paper (German National Licenses)
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  • 5
    Electronic Resource
    Electronic Resource
    Carbonic Anhydrase in the Mamillæ of the Hen's Egg Shell (1964)
    [s.l.] : Nature Publishing Group
    Nature 203 (1964), S. 88-89 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] The observation that sulphonamides1?3 and CI? ions4 which inhibit the carbonic anhydrase in vitro, and which also influence the quality of the egg shell, has confirmed the supposition of Meldrum and Roughton5 that the enzyme carbonic anhydrase plays a part in the calcification of the egg shell. ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/203088a0
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    Paper (German National Licenses)
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  • 6
    Electronic Resource
    Electronic Resource
    Ultrastructural and histochemical investigation of the terminal capillaries in the spleen of the carp (Cyprinus carpio L.) (1979)
    Springer
    Cell & tissue research 196 (1979), S. 289-306 
    Details
    ISSN: 1432-0878
    Keywords: Spleen ; Carp ; Sheathed capillaries ; Macrophages ; Histochemistry ; Ultrastructure
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary In the spleen of the carp arterial capillaries of a highly differentiated structure have been studied by light and electron microscopy. These capillaries share various structural characteristics with the sheathed capillaries (ellipsoids of Schweigger-Seidel) of higher vertebrates. The long arterial capillaries of the carp spleen are provided with cuboidal endothelial cells containing filaments approximately 7 nm in diameter. There is no basal lamina. The endothelial cells form various types of cell junctions, but there are also extensive areas without any junctions. Here, a free passage is possible between the capillary lumen and the subendothelial space. The capillaries possess a single-layered sheath of macrophages. Characteristically, the sheath macrophages possess long and slender cell processes forming a loose framework, the meshes of which are filled with lymphocytes and spindle cells. The sheath macrophages show a zone of ectoplasm rich in filaments. They also contain numerous phagolysosomes rich in hydrolytic enzymes, as identified histochemically. The sheath is sharply limited against the pulp by a thick layer of collagen fibers.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00240103
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    Paper (German National Licenses)
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