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Effect of pharmacotherapy in idiopathic thrombocytopenic purpura (ITP)
BRYCHTA, Jakub
This study focuses on the monitoring of platelet count dynamics during pharmacotherapy in patients with idiopathic thrombocytopenic purpura (ITP) and the comparison of the efficacy of different treatment strategies. To achieve this goal, venous blood samples from patients diagnosed with ITP were analyzed and stored in the anticoagulant K3EDTA. Subsequently, platelet count (PLT) and percentage of immature reticulated platelets (IPF) were quantified using the XN series hematology analyzer from Sysmex. All results were recorded and evaluated in excel software. Subsequently, 3 tables were created from the results and patients were categorized according to the type of treatment. Finally, 5 case reports of patients with ITP were selected. The results of this study provide insights into the effects of pharmacotherapy in patients with ITP and provide insights into the effectiveness of different treatment options. These findings may provide useful information for envisioning the optimal treatment regimen for individual patients with ITP. A better understanding of aspects of this disease may lead to an improved quality of life for patients with ITP. The individual response of patients to treatment is crucial, with the choice of treatment depending on the severity of symptoms and side effects. Mean platelet values differed between the groups of patients without treatment, with first-line and second-line treatment. I also noted that proper treatment can lead to an increase in platelet count. Individual approach to patients and regular monitoring of response to treatment is important. New methods of pharmacotherapy for ITP offer a more targeted treatment effect.
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Anti-hemostatické účinky serpinů z klíštěte \kur{Ixodes ricinus}
EDEROVÁ, Monika
Antihemostatic effects of four recombinantly produced serpins of the tick Ixodes ricinus (IRS 2, IRS 3, IRS 5 and IRS 8) were tested using a method of flow cytometry. Fluorescently labeled antibodies against platelet surface molecules were used to determine the difference in platelet aggregation and activation after incubation of samples with specific serpin. To see how serpins affect coagulation pathway, the prothrombin time, activated partial thromboplastin time and thrombin time tests were performed.
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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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Preparation, characterization and testing of blood derivatives for applications in regenerative medicine
Sovková, Věra ; Amler, Evžen (advisor) ; Kolářová, Hana (referee) ; Vránová, Jana (referee)
Platelet products can be used, thanks to the broad range of bioactive molecules, either as a supplement for cell cultering in vitro alone or for development of cell- or cell-free scaffolds in diverse fields in regenerative medicine. The aim of this study was to prepare several types of platelet products. The concentration of selected molecules were observed. Subsequently, these products were tested with cell cultures in vitro alone or in combination with nanofibres scaffolds prepared by electrospinning or centrifugal spinning. It was found out, that platelets products contains chemokine RANTES and growth factor PDGF in the highest concentrations. It was further discovered the content of pro and antiinflammatory in terleukins and other growth factors. Platelet lysat in concentration 7% is sufficient to replace FBS in keratinocytes and fibroblasts cultures. In the other experiments, platelets in different concentrations were adhered to the scaffolds prepared by electrospinning and centrifugal spinning. Thus prepared scaffolds promote the proliferation and viability of all tested cell types in dose-dependent manner. In the last experiment, the individual components of platelet concentrate were separated and characterized. Their effect to the cell culture were tested. It was examinated the synergic...
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Comparison of control measurements on different types of analyzers used in ÚKBLD CHLTC of VFN in Prague
Koblasa, Vladimír ; Kvasnička, Jan (advisor) ; Kozák, Tomáš (referee)
Koblasa,Vladimír - Comparison of control measurements on various types of haematology analyzers used by ÚKBLD CHLTC at University Hospital in Prague First Faculty of Medicine, Charles University in Prague, Praha 2, Kateřinská 32 Head of the work: prof. MUDr. Jan Kvasnička, DrSc. Supervisor -consultant: Mgr. Ivana Malíková Blood cell count is essential testing method in hematology, where it is necessary to ensure properquality control. Aim of this study was to compare the results of measurement control materials with defined parameters and the same samples at different haematological analyzers to obtain evidence for the expression of measurement uncertainties. There are used more types of blood analyzers in ÚKBLD CHLTC at University Hospital in Prague, which operate on different principles. For comparsion were selected analyzers using the impedance working principle, where individual blood cell passes between two electrodes controlled by low voltage. Variation of this voltage is recorded and accurately defined for each type of blood cells. It was also chosen analyzer that works with optical detection. Analyzer illuminates the individual blood cell by light beam. A cell that enters into the path of light rays, reduce its optical density incident on the photocell. The change of the light density...
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Determination of platelet activation markers expression in the pathophysiology of thrombotic states
Řádek, Martin ; Kvasnička, Tomáš (advisor) ; Dulíček, Petr (referee) ; Říhová, Lucie (referee)
Background/Aims: Thrombophilia, ie an increased predisposition to venous and arterial thrombosis, is a complex disease caused by disorders of platelets and endothelial, among others. Circulating endothelial cells (CEC) and endothelial progenitor cells (EPC) have been described as markers of endothelial damage and dysfunction, respectively as markers of its recovery in many diseases, including thrombotic complications. However, their significance in patients with known thrombophilia has not yet been investigated. Both CEC and EPC represent extremely rare cell populations found in peripheral blood. Therefore, it is essential to use exclusively standardized and sensitive methods for their identification and quantification. The aim of the study was to identify and quantify CEC and EPC in the peripheral blood of patients with congenital thrombophilia and to evaluate their importance as markers of endothelial and platelet activity in context with the risk of thrombosis occuring and recurrence. Methods: Analysis of the number of CEC and EPC in the peripheral blood of patients with thrombophilia with or without a history of thrombosis and patients with acute thrombosis was performed by multicolor flow cytometry. The CEC and EPC reference values were determined on a group of healthy controls. Patients with...
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Production and use of blood products in the Regional Trutnov Hospital.
Rosová, Valérie ; Červená, Gabriela (advisor) ; Honegrová, Barbora (referee)
Title of Diploma Thesis: Production and use of transfusion products in the District Hospital Trutnov. Aim of the work: The aim was to evaluate the production of transfusion products (TP) in the period 2014-2019 at the Transfusion and Hematology Department (THO) in the District Hospital Trutnov and their use for hemotherapy by individual medical disciplines. Futhermore, to compare the production of TP within the Czech Republic together with selected European countries. The incidence of post-transfusion reactions and other adverse events during the reporting period is also included. Material and methods: The methodological part describes the standard procedures of pre- transfusion examination using the column agglutination method from the company Grifols, S.A., laboratory examination of donors and transfusion products manufactured at the Transfusion Department Trutnov. Conclusion: Despite all the recommendations and efforts to reduce the use of transfusion products, this condition has not been proven both in our department, within the Czech Republic and in Europe. This work recommends deleucotization of transfusion products for the national and European part, unification of procedures for transfusion in a given disease, mandatory introduction of NAT testing to minimize the risk of transmission...
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Whole Blood - New Blood Component Containing Platelets
Nováková, Kateřina ; Červená, Gabriela (advisor) ; Honegrová, Barbora (referee)
Charles University Faculty of Pharmacy in Hradec Králové Department of Biological and Medical Sciences Candidate: Bc. Kateřina Nováková Supervisor: RNDr. Gabriela Červená, Ph.D. plk. MUDr. Miloš Bohoněk, Ph.D. Title of diploma thesis: Whole blood - New Blood Component Containing Platelets Background: The aim of this thesis was to evaluate in vitro quality parameters and haemostatic function of leucodepleted WB and their comparison with non-leucodepleted WB. The same way the quality parameters (RBC, PLT, HB and hemolysis) of erythrocyte blood component were measured and compared in day D14, D21, D35 and D42. Methods: WB collected from 30 healthy group A donors was divided into two groups - leucodepleted (LWB), using in-line platelet-sparing filters and collected to a blood bag system IMUFLEX® WB-SP (Terumo BCT, USA) and non-leucodepleted WB (NLWB), colletected to a blood bag system CompoFlex® Single System (Fresenius Kabi, Germany). Both groups were stored at 42řC for 14 days and following parameters were measured in days D0, D1, D3, D5, D10 and D14: WBC, RBC, PLT, HB, hemolysis, pH, TEG, FVIII, TT, PT, aPTT, aggregometry, concentration of PF4 and sCD40L (ELISA). Moreover, in days D0, D7 and D14 was measured the level of expression of platelet activation marker CD62P (P-selectin), CD42b, CD61 by...
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Preparation, characterization and testing of blood derivatives for applications in regenerative medicine
Sovková, Věra ; Amler, Evžen (advisor) ; Kolářová, Hana (referee) ; Vránová, Jana (referee)
Platelet products can be used, thanks to the broad range of bioactive molecules, either as a supplement for cell cultering in vitro alone or for development of cell- or cell-free scaffolds in diverse fields in regenerative medicine. The aim of this study was to prepare several types of platelet products. The concentration of selected molecules were observed. Subsequently, these products were tested with cell cultures in vitro alone or in combination with nanofibres scaffolds prepared by electrospinning or centrifugal spinning. It was found out, that platelets products contains chemokine RANTES and growth factor PDGF in the highest concentrations. It was further discovered the content of pro and antiinflammatory in terleukins and other growth factors. Platelet lysat in concentration 7% is sufficient to replace FBS in keratinocytes and fibroblasts cultures. In the other experiments, platelets in different concentrations were adhered to the scaffolds prepared by electrospinning and centrifugal spinning. Thus prepared scaffolds promote the proliferation and viability of all tested cell types in dose-dependent manner. In the last experiment, the individual components of platelet concentrate were separated and characterized. Their effect to the cell culture were tested. It was examinated the synergic...
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Intelligent nanofibres functionalized with growth factors and blood derivatives for dermatology applications
Vocetková, Karolína ; Amler, Evžen (advisor) ; Rosina, Jozef (referee) ; Arenberger, Petr (referee)
Platelet derivatives are an attractive source of natural growth factors and they are widely used in various tissue engineering and regenerative medicine applications. The aim of this study was to optimize cell culture conditions using platelet lysate and to develop platelet-functionalized fibrous scaffolds as a controlled drug delivery system for native growth factors. Fibrous scaffolds were prepared by electrostatic and centrifugal spinning of PCL and they were functionalized by the platelets by surface adhesion or their encapsulation using emulsion spinning techniques. The cell culture study determined the 7% platelet lysate to be the optimum concentration as a medium supplement in keratinocyte and fibroblast culture. Additionally, following surface adhesion of the platelets to PCL electrospun nanofibres, the platelets were activated due to their contact with the nanofibre nanotopography, resulting in formation of fibrin network. Fibrin served as a reservoir of the growth factors, prolonging the half-time of EGF release to 1.7 days. Such platelet-functionalized samples fostered proliferation of keratinocytes, fibroblasts and melanocytes. Furthermore, adhesion of platelets to centrifugally spun nanofibrous scaffolds resulted in almost two-fold increase in the amount of immobilized platelet-derived...
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