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Thrombin generation in pathophysiological conditions
Malíková, Ivana ; Kvasnička, Tomáš (advisor) ; Hirmerová, Jana (referee) ; Úlehlová, Jana (referee)
Introduction: Thrombophilic conditions may be accompanied by increased thrombin generation (TG), especially during pregnancy when the increase in thrombin generation results from a series of changes in the haemostatic system. During administration of anticoagulant treatment, it is desirable to reduce the increase in thrombin generation. Aims of the study: The first aim of our study was to compare TG in individuals with a proven factor V Leiden mutation and individuals with elevated levels of factor VIII. Another aim was to compare patients with VTE and also with or without proven FV Leiden mutation that are taking different anticoagulation treatments. The final aim was to assess thrombin generation in pregnant women and their response to LMWH administration during severe thrombophilic conditions. Group of patients and methods: There were included 170 healthy blood donors in the control group, the congenital and acquired thrombophilia group included 44 individuals with FV Leiden mutation and 38 individuals with factor VIII level >150 % without other proven thrombophilia. 347 subjects with VTE taking direct coagulation inhibitors were included in the anticoagulation group. Sixty women with a prophylactic dose of LMWH were included in the group of pregnant women. Kit Technothrombin® TGA RC Low and RC...
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The impact of compounds from cigarette smoke on blood coagulation in vitro
Afshari, Mohammadreza ; Carazo Fernández, Alejandro (advisor) ; Karlíčková, Jana (referee)
Charles University Faculty of Pharmacy in Hradec Králové Department of Pharmacology and Toxicology Student: Mohammadreza Afshari Supervisors: Pharm Dr Alejandro Carazo Fernández, Ph.D. Thesis title: The impact of compounds from cigarette smoke on blood coagulation in vitro Hemostasis is the physiological process that stops bleeding at the site of an injury while maintaining normal blood flow elsewhere in the circulation. It is characterized by the equilibrium between proteins, enzymes, and other biological factors. Hemostasis is one of the most important biological processes in our body and any alteration in the function can affect the health of the individual severely. Nowadays the world is experiencing an epidemy of cigarette smoking and many people are socially and economically affected by the health impact of cigarette smoking. Cigarette smoking has been proven to increase the chance of the development of various cardiovascular diseases such as atherosclerosis, coronary heart disease, stroke, and peripheral arterial disease, among others. Despite the large number of studies conducted on the effect of cigarette smoke on the cardiovascular system, there are only scarce studies that directly evaluate the effect and impact of cigarette smoke on the hemostasis and their effect on specific steps....
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Anticoagulation factors and blood uptake by monogeneans of the family Diplozoidae
Skipalová, Karolína ; Mikeš, Libor (advisor) ; Sojka, Dan (referee)
For the successful food intake by organisms that feed on blood is essentials presence of antihaemostatic molecules such as vasodilators, anticoagulant molecules and apyrases., Although members of family Diplozoidae (Heteronchoinea) are blood-feeding parasites on the gills of the fish, these molecules, that could disrupt host hemostasis, have not yet been identified. Thus, the aim of this study was to find molecules with potential anticoagulant activity in homogenates of whole worm bodies and excretory/secretory products of the members of family Diplozoidae. Furthermore perform bioinformatics analysis of sequences obtained from transcriptom project of Eudiplozoon nipponicum (Heteronchoinea: Diplozoidae) and selected proteins (protein domain) then expressed in a recombinant form. We tested inhibitory activity in excretory-secretory products and homogenates of members family Diplozoidae towards coagulation factors IIa and Xa and their specific fluorogenic with 4 negative and 1 positive results. From the results of two transcriptome analysis we discovered three protein families of potential anticoagulants - annexins, serpins and Kunitz-domain proteins. For further analyses we focused on the Kunitz protein family. These proteins contain one or more structurally related active domains which are able to...
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Anticoagulation factors and blood uptake by monogeneans of the family Diplozoidae
Skipalová, Karolína ; Mikeš, Libor (advisor) ; Sojka, Dan (referee)
For the successful food intake by organisms that feed on blood is essentials presence of antihaemostatic molecules such as vasodilators, anticoagulant molecules and apyrases., Although members of family Diplozoidae (Heteronchoinea) are blood-feeding parasites on the gills of the fish, these molecules, that could disrupt host hemostasis, have not yet been identified. Thus, the aim of this study was to find molecules with potential anticoagulant activity in homogenates of whole worm bodies and excretory/secretory products of the members of family Diplozoidae. Furthermore perform bioinformatics analysis of sequences obtained from transcriptom project of Eudiplozoon nipponicum (Heteronchoinea: Diplozoidae) and selected proteins (protein domain) then expressed in a recombinant form. We tested inhibitory activity in excretory-secretory products and homogenates of members family Diplozoidae towards coagulation factors IIa and Xa and their specific fluorogenic with 4 negative and 1 positive results. From the results of two transcriptome analysis we discovered three protein families of potential anticoagulants - annexins, serpins and Kunitz-domain proteins. For further analyses we focused on the Kunitz protein family. These proteins contain one or more structurally related active domains which are able to...
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