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  • 1
    Electronic Resource
    Electronic Resource
    s.l. : American Chemical Society
    Biochemistry 32 (1993), S. 12186-12196 
    ISSN: 1520-4995
    Source: ACS Legacy Archives
    Topics: Biology , Chemistry and Pharmacology
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    s.l. : American Chemical Society
    Analytical chemistry 34 (1962), S. 398-400 
    ISSN: 1520-6882
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    s.l. : American Chemical Society
    Journal of the American Chemical Society 71 (1949), S. 2566-2568 
    ISSN: 1520-5126
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Springer
    Cellular and molecular life sciences 6 (1950), S. 187-188 
    ISSN: 1420-9071
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary (1) Calcium deposits in the bile ducts of cattle, caused by infestation withFasciola hepatica, consist of hydroxyl apatite in granules of about 10−5 to 10−6 cm3 in size. (2) Egg-shaped calcareous bodies fromTænia saginata consist of the two kinds of crystals hydroxyl apatite and brucite.
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    Springer
    Development genes and evolution 191 (1982), S. 202-204 
    ISSN: 1432-041X
    Keywords: Sperm binding ; Sea urchin eggs ; Fertilization
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary The effect of trypsin on the fertilizability of sea urchin eggs was studied withParacentrotus lividus andPseudocentrotus depressus. The main effects were two reductions of fertilizability, with a transient increase intervening. The first decrease was probably caused by degradation of sperm-binding sites at the vitelline sheet and the second by degradation of binding sites on the plasma membrane.
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    Springer
    Acta neuropathologica 77 (1988), S. 219-223 
    ISSN: 1432-0533
    Keywords: Meningioma ; Folliculo-stellate cell ; Pituitary neoplasm ; Electron microscopy ; Immunochemistry
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary A tumor arising in the pituitary fossa and having some of the histological and ultrastructural features of a recently described tumor, purportedly originating from the folliculo-stellate cells of the anterior pituitary, is presented. The results of our ultrastructural and immunohistochemical studies, however, favored a meningeal origin and suggested that the neoplasm was most likely a secretory meningioma.
    Type of Medium: Electronic Resource
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  • 7
    Electronic Resource
    Electronic Resource
    Springer
    Acta neuropathologica 79 (1990), S. 692-696 
    ISSN: 1432-0533
    Keywords: Arthrogryposis multiplex congenita ; Spinal cord dysplasia ; Hypoplasia, posterior spinal roots ; Spinal root ganglia, rudimentary ; Dysplasia, inferior olivary nuclei
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary We report a male infant with arthrogryposis multiplex congenita (AMC) who survived for 19 weeks following birth at 36 weeks gestational age. No heritable or acquired cause of neuromuscular disease was found. He manifested joint contractures of upper and lower extremities, diffuse hypotonia requiring ventilatory support, and areflexia; the general examination also showed facial dysmorphisms, and an ichthyotic rash. Pathological examination of the brain and spinal cord revealed severe hypoplasia of dorsal roots and posterior columns, nondecussation of pyramidal tracts, and anterior horns of an unusual configuration: the brain was normal, and the cerebellum contained Purkinje cell heterotopias. Muscle spindles could not be identified. To our knowledge, these spinal cord abnormalities in association with AMC have not been previously reported, thus raising interesting speculations about the possible role of such abnormalities in the pathogenesis of AMC.
    Type of Medium: Electronic Resource
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  • 8
    Electronic Resource
    Electronic Resource
    Springer
    Lung 98 (1942), S. 620-654 
    ISSN: 1432-1750
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Type of Medium: Electronic Resource
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  • 9
    Electronic Resource
    Electronic Resource
    Springer
    Journal of neurology 233 (1986), S. 16-18 
    ISSN: 1432-1459
    Keywords: Spinal cord stimulation ; Chronic pain ; Electrodes ; Psychopathology
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary A total of 50 patients with chronic pain syndromes were selected for treatment with spinal cord stimulation. Correct positioning of electrodes was obtained in 44 patients, leading to an initial alleviation of pain in 25 patients. In 6 patients, electrodes (though still effective in 4) had to be removed because of surgical complications within the first 5 months of use. Only 8 patients had at least some beneficial effect lasting for more than 3 years. The long-term results in patients with more severe psychological disturbances were no worse than those of the other patients.
    Type of Medium: Electronic Resource
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  • 10
    Electronic Resource
    Electronic Resource
    Springer
    Archives of dermatological research 270 (1981), S. 421-428 
    ISSN: 1432-069X
    Keywords: UV-irradiation ; Skin ; Hairless mice ; Sunscreen products ; UV-Bestrahlung ; Hautveränderungen ; haarlose Mäuse ; Sonnenschutzmittel
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung Weibliche haarlose Mäuse (Stamm-Mutante hr/hr) wurden mit steigenden Dosen von UV-B über eine Dauer von 4 Wochen bestrahlt. Unbehandelte Tiere dienten als Kontrolle. Weitere Gruppen von je 30 Mäusen wurden täglich vor der Bestrahlung entweder mit Leercreme oder Leermilch oder einer Milch mit Sonnenschutzfaktor 6 oder einer Creme mit Faktor 6 oder einer Creme mit Faktor 8 behandelt. Das Körpergewicht der Tiere blieb während der Behandlung im Vergleich zu den unbehandelten Kontrollen unverändert. Die Hautdicke war nach der Bestrahlung signifikant erhöht. Diese Zunahme wurde bereits durch die Leercreme oder Leermilch partiell antagonisiert. Sie wurde nach Gabe von Creme oder Milch mit Lichtschutzmitteln vollständig verhindert. Unter den gewählten Versuchsbedingungen war die Kraft bei Abriß ausgestanzter hautproben nach Bestrahlung erhöht. Diese Erhöhung wurde nicht durch die Leerzubereitungen, wohl aber durch die Zubereitungen mit UV-Absorbern, aufgehoben. Die Reißdehnung ausgestanzter Hautstreifen erwies sich als der empfindlichste Indikator. Die Erniedrigung der Reißdehnung nach Bestrahlung wurde nur teilweise durch Behandlung mit den Leerzubereitungen antagonisiert. Dagegen hatten die Sonnenschutzpräparate entsprechend ihrer Stärke einen ausgeprägten Effekt. Da die Bestrahlung sowohl eine Zunahme der Reißkraft als auch der Hautdicke bewirkten, zeigten die Parameter Reißfestigkeit und Elastizitätsmodul unter den gewählten Versuchsbedingungen keine signifikanten Änderungen. Auch Kollagen und Elastin per g Frischgewicht waren nicht signifikant verändert. Bedenkt man aber die Zunahme der Hautdicke nach Bestrahlung, die durch die Lichtfilter-substanzen verhindert wird, kann man auf eine Verhinderung der Neubildung von zusätzlichem intercellulären Material schließen. Die vorgelegten Ergebnisse bestätigen den Wert von Lichtschutzzubereitungen. Weiterhin zeigen sie eine neue Methode zur Beurteilung von Chemikalien und von Zubereitungen als Lichtschutzmittel.
    Notes: Summary Female hairless mice (strain mutant hr/hr) have been irradiated with increasing doses of UV-B over a period of 4 weeks. They were compared with untreated controls. Additional groups of 30 mice were treated with milk base or cream base or milk SPF6 or cream SPF6 or cream SPF8 daily before irradiation. No changes of body weight indicating systemic effects were found. Skin thickness was increased significantly after irradiation. These changes were partially antagonized by cream or milk bases and completely prevented by the corresponding formulations containing sunscreen agents. Under the chosen conditions ultimate load of excised skin samples was increased by irradiation. This effect was not reversed by the bases but by the sunscreen products. Ultimate strain of excised skin samples proved to be the most sensitive indicator. The decrease of ultimate strain after irradiation was partially antagonized by the bases. The sunscreen products had a more powerful effect. Due to the effects on skin thickness and ultimate load tensile strength and modulus of elasticity did not show significant changes under the chosen conditions. Likewise, collagen and elastin content per gram wet weight did not show significant changes. Considering the increase of thickness of skin which is prevented by sunscreen products one may conclude also a prevention of formation of additional intercellular material. The results prove the value of sunscreen products. Furthermore, they demonstrate a new method for evaluation of chemicals and sun protection preparations.
    Type of Medium: Electronic Resource
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