In vitro study of the inhibition of coagulation induced by different radiocontrast molecules
| Autor: | Guy Clendinnen, Rosy Eloy, Jacqueline Paul, J. Belleville, Joël Baguet |
|---|---|
| Rok vydání: | 1985 |
| Předmět: |
Adult
Male Contrast Media In Vitro Techniques Thrombin time Fibrin Thrombin medicine Coagulation testing Humans Blood Coagulation Fibrinopeptide A biology medicine.diagnostic_test Heparin Chemistry Reptilase time Drug Synergism Hematology Middle Aged Fibrin Monomer Blood Coagulation Factors Coagulation Immunology Prothrombin Time biology.protein Biophysics Calcium Female medicine.drug |
| Zdroj: | Thrombosis Research. 38:149-162 |
| ISSN: | 0049-3848 |
| DOI: | 10.1016/0049-3848(85)90057-x |
| Popis: | The anticoagulant activity of seven intravascular radiocontrast molecules (RCM) was evaluated in different in vitro systems using citrated human plasma. Each RCM was tested in a concentration range of 5 to 50 mM. The thrombin time and the reptilase time showed a dose-dependent lengthening of fibrinoformation, the recording of fibrinoformation exhibited a significant delay of fibrin monomer generation and polymerization although the amplitude of the fibrinoformation was not decreased. The interfering effect with fibrin clot formation impairs also global coagulation tests and monospecific coagulation tests using fibrinoformation as the final step of the assay, but a possible interaction between RCM and some specific coagulation factors cannot be excluded. RCM potentiated the anti-thrombin action of heparin but the inhibition or delay of fibrinoformation is not related to an antithrombinic effect of contrast media. The thrombin amidolytic activity is not modified by RCM but the generation of FpA is delayed and decreased. The ultrastructure of the fibrin clot is not altered at the end of the polymerization. |
| Databáze: | OpenAIRE |
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