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《Academic Journal of Second Military Medical University》 1984-03
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CHRONIC TOXIC PATHOLOGIC INVESTIGATION OF FLUOROCARBON BLOOD SUBSTITUTE

Wang Bingsen, Ding XunchengDepartment of occupational Pathology, Shanghai Institute of Industrial Hygiene and Occupational Diseases  
Fluorocarbon emulsion, a substitute of blood, 20 ml/kg were injected once into dogs intravenously. As a result, part of the substitute deposited in the lympho-retic-ular system and was phagocytized by fixed and free histiocytes (rnonophagocytic system), and the histiocytes then converted into foaming cells.One month after injection, the fluorocarbon's deposits in the foaming cells remained at the peak level in the liver, spleen and other organs of the lympho-reti-cuJar system. After six months,no deposits could be found in all viscera and no signs of any pathological changes, except the spleen under a light microscope.After twelve months, no foaming cells were found in the spleen, liver, and kidney under light cmicroscope,yet but foaming cells could be found in the spleen and liver with the help of an electron microscope and we believed that this sign had no pathological significance in clinic practice.The target cells only showed the action of phagocitizing and depositing.According to our observation, the fluorocarbon emulsion is a non cytoplasmic toxin and an inert biologic substance, so there are no secondary histo-pathologic changes caused by fluorocarbon deposition. It seems that 20 ml/kg of fluorocarbon emulsion (equal to 1200 ml for adult human)injected intravenously is rather safe.
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