Library

feed icon rss

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
  • 1
    Electronic Resource
    Electronic Resource
    Springer
    International journal of legal medicine 80 (1978), S. 305-309 
    ISSN: 1437-1596
    Keywords: Haschisch, Organschäden ; Rauschdrogen, Organschäden
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine , Law
    Description / Table of Contents: Zusammenfassung Nach 7- und 30-tägiger oraler Applikation von Haschisch bei Ratten und Kaninchen wurden in Leber, Niere und Gehirn toxische Schäden nachgewiesen. Das Hirngewebe war hyperämisch und ödematös gelockert. Die Ganglienzellen der Großhirnrinde, der Stammkerne und des Kleinhirnes wiesen vielfach exzentrisch verlagerte Kerne mit Vermehrung der Kernkörperchen auf. Zellschäden in unterschiedlichen Stadien waren mit Kernvakuolen, Pyknosen und Karyolysen abgrenzbar. Auflockerungen und Vakuolen im Plasma waren vielfältig ausgebildet. In der Niere imponierte neben interstitiellen Blutungen eine trübe Schwellung mit vakuoliger Degeneration der Hauptstückzellen und Kernpyknosen und Karyolysen in allen Stadien. Die Glomeruli waren vielfach vergrößert, zeigten Verdickungen der Bowman'schen Kapseln und umgebende Infiltration mit Zelltrümmern. Im Lebergewebe zeigten sich Kernunruhen, Lochkernbildungen, Plasmavakuolen und Zellnekrosen. Rundzellinfiltrate im portobiliären Feld waren meist mit einer Aktivierung der Kupffer'schen Sternzellen und intrazellulärer Galleanreicherung vergesellschaftet.
    Notes: Summary Toxic lesions were found in liver, kidney and brain of rats and rabbits after oral application of hashish for 7 or 30 days. The brain tissue showed hyperemia and edema. The cerebral cortex, brain stem and cerebellum contained ganglion cells with eccentric nuclei and an icreased number of nucleoli. Different stages of cell lesions could be distinguished by nuclear vacuoles, pyknosis and karyolysis. The cytoplasma was loosened and showed numerous vacuoles. In the kidney we found, besides interstitial hemorrhage, cloudy swelling of the proximal tubules with vacuolous degeneration and nuclear pyknosis and karyolysis in all stages. The glomeruli were often enlarged with thickening of Bowman's capsule and surrounding cellular infiltration with cell fragments. The liver cells showed irregularities of nuclei and vacuolated nuclei, plasma vacuoles and cell necrosis. Infiltrations of round cells at the portal-biliary areas were usually combined with an activation of the Kupffer cells and intracellular bile stasis.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 2
    Electronic Resource
    Electronic Resource
    Springer
    International journal of biometeorology 32 (1988), S. 242-246 
    ISSN: 1432-1254
    Keywords: Simulium arcticum ; Black flies ; Controlled environment ; Temperature ; Relative humidity ; Vapour pressure
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geography , Physics
    Notes: Abstract The effects of temperature and vapour pressure deficit on the flight activity ofSimulium arcticum were defined under controlled laboratory conditions. Optimum conditions of temperature and vapour pressure deficit for flight activity varied with time of exposure to the environmental conditions. By applying polynomial equations for the various response surfaces it was possible to predict the time-dependent, optimal hygrothermal environment for black-fly flight activity. Greatest variability in flight activity occurred just prior to death of the insects. Mortality of flies after 1 h exposures to the experimental conditions occurred only at high temperatures and vapour pressure deficits. With increased time of exposure, mortality increased at lower temperatures and vapour pressure deficits.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...