Dotriacontane-16, 17-14C Distribution Pattern in the Respiratory System of Two Hamster Species after Passive Exposure to Radioactive Labelled Smoke

  • Norbert Kmoch
  • U. Mohr


The quantitative and qualitative distribution of C14 labeled dotriacontane (DOT-C14) determined by liquid scintillation counting and autoradiography in the respiratory system, the digestive tract, liver and kidneys of Syrian golden and European hamsters, males and females, is described after they had been exposed to radioactive labeled cigarette smoke. The different DOT-C14 distributions are discussed in detail with special attention given to the respiratory tract, related species differences and the topographic subdivisions of apex nasi, fundus nasi, pharynx, larynx, trachea, and lungs. It is apparent that the absolute amount of activity in the respiratory tract related to body size of the Syrian golden hamster is greater than in the European hamster but that the percentual distribution exhibits a greater filtering action of the upper respiratory tract of Syrian golden hamster than of the European hamster so that a larger percentual amount of total inhaled particulate matter reaches the lungs. The European hamster might be a more useful model for the investigation of respiratory tract carcinogenesis due to the possibility of a longer life time exposure and a higher sensitivity to respiratory tract carcinogens.


Respiratory Tract Liquid Scintillation Counting Syrian Golden Hamster Smoke Inhalation British American Tobacco 
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Copyright information

© Springer-Verlag Berlin · Heidelberg 1974

Authors and Affiliations

  • Norbert Kmoch
    • 1
  • U. Mohr
    • 1
  1. 1.Abteilung für Experimentelle PathologieMedizinische Hochschule HannoverHannover-KleefeldW.-Germany

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