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  • 1960-1964  (8)
Material
Years
Year
  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Bulletin of experimental biology and medicine 52 (1962), S. 1243-1246 
    ISSN: 1573-8221
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary Trypane blue block of reticuloendothelium in rats provoked some reduction in the protective function of the physiological anticoagulation system. Mortality rate after intravenous administration of thromboplastin (in moderate doses), obtained from the brain tissue of rats, is considerably great in animals with reticuloendothelial block than that in the controls receiving the same thromboplastin doses. The protective reaction of the organism to the thromboplastin administered in the jugular vein is less pronounced during reticuloendothelial block, the rise of the blood fibrinolytic activity in resonse to the administered thromboplastin being less marked in the experimental animals than in the controls. As compared to controls thrombin time of blood subjected to preliminary incubation with protaminsulfate is reduced in the experimental animals, pointing to a lesser discharge or of heparin-like substances in their blood. The restoration of the normal blood coagulation time in the surviving experimental animals was relatively more rapid than in controls.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Bulletin of experimental biology and medicine 56 (1963), S. 958-961 
    ISSN: 1573-8221
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Type of Medium: Electronic Resource
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  • 3
    ISSN: 1573-8221
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary Dicoumarin was used to reduce the blood prothrombin to the therapeutic level (25–12%) and below 10% in male albino rats; thrombin formation was induced by thromboplastin administration against the background of the normally functioning anticoagulation system and of its depression (caused by keeping the animals on atherogenic diet and by chloropromazine or potassium chloride administration). As established, reliable protection from thrombosis could be attained only by reducing the prothrombin level below the 10% mark. The most prothrombin state developed after intravenous injection of potassium chloride.
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Springer
    Bulletin of experimental biology and medicine 52 (1961), S. 750-753 
    ISSN: 1573-8221
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary Further evidence has been obtained that the physiological anticoagulation system in rats is of a reflex-humoral nature. The reflex arc involves the medulla oblongata.
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    Springer
    Bulletin of experimental biology and medicine 55 (1964), S. 493-496 
    ISSN: 1573-8221
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary Experiments were staged on 450 male albino rats. As established, a stable food lipemia was attained after keeping the animals on a fat diet (according to Wilgram [42,43]) for 8 months. The activity of lipoprotein plasma lipase in such animals was half as compared to control animals which were given the usual laboratory ration. Intravenous injection of heparin led to considerable activation of lipoprotein lipase in experimental animals. However, it did not reach the level attained in control animals after injection of the same doses of heparin. Intravenous injection of thrombin to normal animals led to activation of lipoprotein lipase due to the appearance in the blood of some excess of reflex-secreten heparin by the physiological anticoagulating system [4, 7, 10] in response to the appearance of thrombin in the circulation. Thus, the development of prethrombotic state in animals kept on a fat diet was accompanied by reduction of lipoprotein lipase activity due to deficiency of heparin and partially of the enzyme itself. A conclusion was drawn that lipoprotein lipase was connected with the function of the physiological anticoagulating system.
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    Springer
    Bulletin of experimental biology and medicine 58 (1964), S. 1046-1048 
    ISSN: 1573-8221
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Type of Medium: Electronic Resource
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  • 7
    Electronic Resource
    Electronic Resource
    Springer
    Bulletin of experimental biology and medicine 52 (1962), S. 1126-1130 
    ISSN: 1573-8221
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary Experimental investigations carried out in 1958–1959 (2–6) have demonstrated that fluid condition of the circulating blood is maintained in the animal body as a result of the neurohumoral anticoagulation system function. In the present work it was established that the diet enriched with animal fat, cholesterol and containing methylthiouracil (given for several months to rats) depresses the function of the physiological anticoagulating system. This phenomenon leads to prethrombotic state which may be followed by a thrombotic condition if thrombin appears in the circulating blood, irrespective of the causes provoking the transformation of the blood plasma prothrombin into thrombin. In experimental prethrombotic state the following changes were detected: a rise of fibrinogen concentration, a marked reduction of the blood fibrinolytic activity and a rise of the plasma tolerance to heparin. The combination of the aforementioned signs may be used for the diagnosis of the prethrombotic state. There is evidence that in this condition caused by depression of the anitcoagulating blood system as a result of atherogenic diet trypsin inhibitor for soy beans a prophilactic action against the thrombus formation provoked by intravenous thromboplastin injection takes place. Experimental data obtained show that development of myocardial infarction in rats on atherogenic diet (Wilgram 10) was caused by the prethrombotic state appearing in the experimental animals, which is the sequence of depression of the physiological anticoagulating system function [2–9].
    Type of Medium: Electronic Resource
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  • 8
    Electronic Resource
    Electronic Resource
    Springer
    Bulletin of experimental biology and medicine 54 (1963), S. 974-976 
    ISSN: 1573-8221
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary Experiments performed on rats demonstrated X-irradiation of animals (600 r) to depress the physiological anticoagulative system. Intravenous administration of thrombin solution (in sufficiently strong concentration) to the irradiated animals caused immediate death from cardiac vessels and vascular thrombosis; this is distinct from normal animals, which being in the same conditions, remained alive. Intravenous injection of thrombin in low doses failed to cause the death of irradiated animals, nor did it provoke protective reaction of the blood fibrinolytic system, but led to a more gradual change of the plasma tolerance of heparin. In 6–10 minutes after thrombin administration (in the same doses) to control animals there is a rise of the blood fibrinolytic activity and a considerable reduction of plasma tolerance to heparin. The data obtained point to the depression occurring in the humoral part of the physiological anticoagulative system in the irradiated animals.
    Type of Medium: Electronic Resource
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