Morphological determinants for the local hemostatic effect of exogenous fibrin monomer in its systemic administration after injury with inhibition of platelet aggregation in the experiment
Background. In our previously published studies, we demonstrated a high hemostatic activity of a low dose of exogenous fibrin monomer during its systemic administration in a model of dosed liver injury with preliminary inhibition of platelet aggregation. However, the analysis of platelet involvement...
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| Language: | Russian |
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Scientific Сentre for Family Health and Human Reproduction Problems
2023-10-01
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| Series: | Acta Biomedica Scientifica |
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| Online Access: | https://www.actabiomedica.ru/jour/article/view/4347 |
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| author | V. M. Vdovin E. V. Suzopov I. I. Shakhmatov I. P. Bobrov D. A. Orekhov A. Yu. Dolgatov A. P. Momot |
| author_facet | V. M. Vdovin E. V. Suzopov I. I. Shakhmatov I. P. Bobrov D. A. Orekhov A. Yu. Dolgatov A. P. Momot |
| author_sort | V. M. Vdovin |
| collection | DOAJ |
| description | Background. In our previously published studies, we demonstrated a high hemostatic activity of a low dose of exogenous fibrin monomer during its systemic administration in a model of dosed liver injury with preliminary inhibition of platelet aggregation. However, the analysis of platelet involvement in the mechanisms of local fibrin formation has not been analyzed. The aim of the study. To conduct a comparative analysis of the cellular composition of venous and wound blood, as well as blood in the wound vessels to assess the contribution of platelets to the hemostatic effect of exogenously administered fibrin monomers in dosed liver injury under conditions of pharmacologically determined thrombocytopathy. Methods. In a model of dosed liver injury in rabbits after inhibition of platelet aggregation by acetylsalicylic acid in combination with clopidogrel, the effect of the administration of fibrin monomer was evaluated in comparison with the use of tranexamic acid. We studied the number of platelets in venous and wound blood smears, as well as in the contents of wound vessels. Results. It has been established that with the systemic administration of exogenous fibrin monomer, the number of platelets in wound blood smears decreases by 17.2 % in comparison with free circulating venous blood. Platelets in wound blood form aggregates and are in an activated state. In the wound vessels, the number of these cells was maximum (150 per lower field) compared with the number of platelets in the placebo and tranexamic acid groups (55 and 84 per lower field, respectively). Also in the wound blood, erythrocytes with altered forms (echinocytes, schistocytes, stomatocytes and ovalocytes) were found. Conclusion. Systemic administration of exogenous fibrin monomer affects the redistribution of platelets between the systemic circulation, wound vessels and wound blood, determining its hemostatic effect and local wound fibrin formation in dosed liver injury. The presence of receptor-mediated platelets recruitment due to fibrin monomer in the wound vessels with the participation of damaged erythrocytes is assumed. |
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| format | Article |
| id | doaj.art-16a99e2290194608bc256340e6bc0297 |
| institution | Directory Open Access Journal |
| issn | 2541-9420 2587-9596 |
| language | Russian |
| last_indexed | 2024-04-24T17:14:33Z |
| publishDate | 2023-10-01 |
| publisher | Scientific Сentre for Family Health and Human Reproduction Problems |
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| series | Acta Biomedica Scientifica |
| spelling | doaj.art-16a99e2290194608bc256340e6bc02972024-03-28T07:49:28ZrusScientific Сentre for Family Health and Human Reproduction ProblemsActa Biomedica Scientifica2541-94202587-95962023-10-018415516410.29413/ABS.2023-8.4.172615Morphological determinants for the local hemostatic effect of exogenous fibrin monomer in its systemic administration after injury with inhibition of platelet aggregation in the experimentV. M. Vdovin0E. V. Suzopov1I. I. Shakhmatov2I. P. Bobrov3D. A. Orekhov4A. Yu. Dolgatov5A. P. Momot6Altai State Medical UniversityAltai State Medical UniversityAltai State Medical UniversityAltai State Medical UniversityAltai Regional Cardiology Health CenterAltai State Medical UniversityAltai State Medical University; Altai Branch, National Medical Research Center for HematologyBackground. In our previously published studies, we demonstrated a high hemostatic activity of a low dose of exogenous fibrin monomer during its systemic administration in a model of dosed liver injury with preliminary inhibition of platelet aggregation. However, the analysis of platelet involvement in the mechanisms of local fibrin formation has not been analyzed. The aim of the study. To conduct a comparative analysis of the cellular composition of venous and wound blood, as well as blood in the wound vessels to assess the contribution of platelets to the hemostatic effect of exogenously administered fibrin monomers in dosed liver injury under conditions of pharmacologically determined thrombocytopathy. Methods. In a model of dosed liver injury in rabbits after inhibition of platelet aggregation by acetylsalicylic acid in combination with clopidogrel, the effect of the administration of fibrin monomer was evaluated in comparison with the use of tranexamic acid. We studied the number of platelets in venous and wound blood smears, as well as in the contents of wound vessels. Results. It has been established that with the systemic administration of exogenous fibrin monomer, the number of platelets in wound blood smears decreases by 17.2 % in comparison with free circulating venous blood. Platelets in wound blood form aggregates and are in an activated state. In the wound vessels, the number of these cells was maximum (150 per lower field) compared with the number of platelets in the placebo and tranexamic acid groups (55 and 84 per lower field, respectively). Also in the wound blood, erythrocytes with altered forms (echinocytes, schistocytes, stomatocytes and ovalocytes) were found. Conclusion. Systemic administration of exogenous fibrin monomer affects the redistribution of platelets between the systemic circulation, wound vessels and wound blood, determining its hemostatic effect and local wound fibrin formation in dosed liver injury. The presence of receptor-mediated platelets recruitment due to fibrin monomer in the wound vessels with the participation of damaged erythrocytes is assumed.https://www.actabiomedica.ru/jour/article/view/4347fibrin monomeracetylsalicylic acidclopidogreltranexamic acidplateletshemorrhage control |
| spellingShingle | V. M. Vdovin E. V. Suzopov I. I. Shakhmatov I. P. Bobrov D. A. Orekhov A. Yu. Dolgatov A. P. Momot Morphological determinants for the local hemostatic effect of exogenous fibrin monomer in its systemic administration after injury with inhibition of platelet aggregation in the experiment Acta Biomedica Scientifica fibrin monomer acetylsalicylic acid clopidogrel tranexamic acid platelets hemorrhage control |
| title | Morphological determinants for the local hemostatic effect of exogenous fibrin monomer in its systemic administration after injury with inhibition of platelet aggregation in the experiment |
| title_full | Morphological determinants for the local hemostatic effect of exogenous fibrin monomer in its systemic administration after injury with inhibition of platelet aggregation in the experiment |
| title_fullStr | Morphological determinants for the local hemostatic effect of exogenous fibrin monomer in its systemic administration after injury with inhibition of platelet aggregation in the experiment |
| title_full_unstemmed | Morphological determinants for the local hemostatic effect of exogenous fibrin monomer in its systemic administration after injury with inhibition of platelet aggregation in the experiment |
| title_short | Morphological determinants for the local hemostatic effect of exogenous fibrin monomer in its systemic administration after injury with inhibition of platelet aggregation in the experiment |
| title_sort | morphological determinants for the local hemostatic effect of exogenous fibrin monomer in its systemic administration after injury with inhibition of platelet aggregation in the experiment |
| topic | fibrin monomer acetylsalicylic acid clopidogrel tranexamic acid platelets hemorrhage control |
| url | https://www.actabiomedica.ru/jour/article/view/4347 |
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