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  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Cellular and molecular life sciences 52 (1996), S. 549-553 
    ISSN: 1420-9071
    Keywords: Haemocyanin synthesis ; Cephalopoda ; Nautilus ; midgut gland ; immunocytochemistry
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Abstract The branchial gland of the dibranchiate cephalopods is described as the site of haemocyanin synthesis. Because there is no equivalent to this organ in tetrabranchiate cephalopods the localization of haemocyanin synthesis remained unknown for a long time. In this study we could confirm the conclusions from prelimnary investigations concerning the copper content of the midgut gland ofNautilus, which gave the first indications for a possible localization of haemocyanin synthesis in this organ. We developed a polyclonal antibody againstNautilus haemocyanin, tested its specificity, and used it on ultra-thin sections of the tissue of the midgut gland. It could be shown that there is a clear imunogold precipitation only on the triangular basal cells in the terminal alveoli. All the other types of cell in this organ were free of any immunoreactivity. It can be supposed that the triangular basal cells in the terminal alveoli of the midgut gland are the sites of haemocyanin synthesis inNautilus.
    Type of Medium: Electronic Resource
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  • 2
    ISSN: 1433-0407
    Keywords: Schlüsselwörter Body Mass Index ; Untergewicht ; Amenorrhö ; gezügeltes Eßverhalten ; Konstitutionslehre ; Key words Body mass index ; Underweight ; Amenorrhea ; Restrained eating ; Body frame
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Summary Underweight is a key symptom in anorexia nervosa. In this review we summarize recent findings pertaining to weight regulation in this eating disorder. The observation that a body mass index below 13 kg/m2 upon admission for inpatient treatment is associated with a high mortality rate and chronic persistence of underweight is of obvious clinical relevance. A lowered leptin secretion, which results from the weight loss, is presumably of major importance for the development of amenorrhea. We discuss findings pertaining to a reduced body weight in other psychiatric disorders during adolescence in the light of Kretschmer’s findings related to body frame and psychopathology.
    Notes: Zusammenfassung Untergewicht ist ein Leitsymptom der Anorexia nervosa. In dieser Übersicht fassen wir neuere Untersuchungen zur Gewichtsregulation im Rahmen dieser Eßstörung zusammen. Klinisch relevant ist die Beobachtung, daß ein Body Mass Index von unter 13 kg/m2 zum Zeitpunkt der Aufnahme in eine stationäre Behandlung mit einer erhöhten Mortalität und dem langfristigen Fortbestehen von Untergewicht assoziiert ist. Eine erniedrigte Leptinsekretion, die als Folge der Gewichtsabnahme entsteht, ist mutmaßlich für das Auftreten der ebenfalls charakteristischen Amenorrhö von zentraler Bedeutung. Wir diskutieren Befunde, die auf das gehäufte Vorkommen von Untergewicht auch bei anderen psychiatrischen Störungen im Jugendalter hinweisen vor dem Hintergrund der Konstitutionslehre von Kretschmer.
    Type of Medium: Electronic Resource
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