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Antithrombotic effect of tissue and plasma type angiotensin converting enzyme inhibitors in experimental thrombosis in rats

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Wojewodzka-Zelazniakowicz M., Chabielska E., Mogielnicki A., Kramkowski K., Karp A., Opadczuk A., Domaniewski T., Malinowska-Zaprzalka M., Buczko W.

Journal of Physiology and Pharmacology

2006

tom 57

nr 2

This study compared the antihrombotic effect of plasma angiotensin converting enzyme inhibitors (ACE-Is): captopril (CAP), enalapril (ENA) and Tissue ACE-Is: perindopril (PER), quinapril (QUIN) in experimental venous and arterial thrombosis. Normotensive Wistar rats were treated p.o. with CAP (75 mg/kg), ENA (20 mg/kg), PER (2 mg/kg) and QUIN (3 mg/kg) for 10 days. The influence of ACE-Is on coagulation and fibrinolytic systems as well as platelet function was evaluated. The hypotensive effect of ACE-Is was equal in all groups. QUIN mantained the final carotid blood flow at the highest value in comparison to PER and plasma ACE-Is. The arterial thrombus weight was reduced in PER and QUIN groups while venous thrombus weight was also reduced after CAP. Tissue andplasma ACE-Is caused the inhibition of platelet adhesion and aggregation. A reduction of fibrin generation, prolongation of prothrombin time (PT), activated partial thromboplastin time (APTT) and shortening of euglobulin clot lysis time (ECLT) were observed after PER and QUIN treatment. In conclusion, given in equipotent hypotensive doses, Tissue ACE-Is exerted more pronounced antithrombotic effect than plasma ACE-Is in experimental thrombosis. The differences between Tissue and plasma ACE-Is in terms of their more pronounced inhibition of experimental thrombosis may be related to the intensified activation of fibrinolysis and inhibition of coagulation.

Ograniczanie wyników

1 Journal of Physiology and Pharmacology

1 Buczko W.

1 Chabielska E.

1 Domaniewski T.

1 Karp A.

1 Kramkowski K.

1 Malinowska-Zaprzalka M.

1 Mogielnicki A.

1 Opadczuk A.

1 Wojewodzka-Zelazniakowicz M.

1 2006

Wyniki wyszukiwania

Antithrombotic effect of tissue and plasma type angiotensin converting enzyme inhibitors in experimental thrombosis in rats