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The use of new ex vivo tests to find ferns with anthelmintic effect
Bednářová, Klára ; Skálová, Lenka (advisor) ; Szotáková, Barbora (referee)
Charles University, Faculty of Pharmacy in Hradec Králové Department of Biochemical Sciences Candidate: Klára Bednářová Supervisor: prof. RNDr. Lenka Skálová, Ph.D. Title of diploma thesis: The use of new ex vivo tests to find ferns with anthelmintic effect Haemonchus contortus is one of the worldwide spread nematode parasitizing in the gastrointestinal tract of small ruminants. The nematodes cause a disease called haemonchosis. A typical symptom of the disease is anemia resulting from the sucking of blood by nematodes. The disease also reduces productivity and may result in the death of the host. Only a few drugs are used for the treatment of haemonchosis, the number of newly introduced drugs is low. Nowadays, the emerging resistance to anthelmintics is a growing problem due to the high H. contortus adaptivity as well as the incorrect use of synthetic drugs. In addition, the synthetic drugs pollute the environment, which is why there is an effort to find herbal products with an anthelmintic effect. Anthelmintic activity has been demonstrated in some Asian and African ferns, so we decided to test the European fern species and evaluate their anthelmintic activity. Anthelmintic activity against nematodes, specifically H. contortus, was tested using egg hatch test and ATP bioluminescence assay in...
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The effect of selected herbicides on UGTs expression and activity of antioxidant enzymes in Arabidopsis thaliana
Rysová, Samanta ; Matoušková, Petra (advisor) ; Szotáková, Barbora (referee)
Charles University Faculty of Pharmacy in Hradec Králové Department of Biochemical Sciences Candidate: Samanta Rysová Supervisor: doc. Ing. Petra Matoušková, Ph.D. Consultant: RNDr. Radka Podlipná, Ph.D. Title of diploma thesis: The effect of selected herbicides on UGTs expression and activity of antioxidant enzymes in Arabidopsis thaliana Herbicides are widely used to control weeds in agriculture. Although their use is essential to ensure crop production, their effect occurs to be reduced due to the development of herbicide resistence. Therefore it is important to clarify the mechanism of herbicide resistence, so that herbicides can be used effectively and new substances can be developed if necessary. At the same time, herbicides acts as an abiotic stress factor on the plant, thus affecting the antioxidant apparatus of plant cells. The aim of this work was to investigate the effect of selected herbicides - tribenuron-methyl (TBM), pinoxaden (PNX) and sulcotrione (SLC), on the expression of selected UGTs that could play a role in herbicide resistence. Secondary, we want to find out the effect of TBM on the activity of selected antioxidant enzymes - ascorbate peroxidase (APX), catalase (CAT) and superooxide dismutase (SOD). Arabidopsis thaliana was used as a model plant and the experiment was...
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Single nucleotide polymorphisms in the pathogenesis of mature B-cell neoplasms
Wagnerová, Andrea ; Szotáková, Barbora (advisor) ; Beránek, Martin (referee)
Charles University Faculty of Pharmacy in Hradec Králové Department of Biochemical Sciences Candidate: Bc. Andrea Wagnerová Supervisor: prof. Ing. Barbora Szotáková, Ph.D., Mgr. Kateřina Černá Pilátová, Ph.D. Title of diploma thesis: Single nucleotide polymorphism in the patogenesis of mature B-cell neoplasms Chronic lymphocytic leukemia (CLL) is a disease characterized by clonal proliferation of B-lymphocytes. CLL is a lymphoproliferative disorder with a number of defined risk factors, but its etiopathogenesis remains unresolved to some degree. Over the past 10-15 years, there have been several studies that primarily suggest a genetic predisposition to the disease. The influence of external factors on the etiology of CLL has not been demonstrated. There is also a defined asymptomatic condition associated with CLL called monoclonal B-lymphocytosis, which is often referred to as a precursor of CLL. Immunophenotyping of lymphocytes by flow cytometry was performed in subjects of the control group (100 subjects) and the CLL/MBL group (patients diagnosed with CLL or MBL, 50 subjects). All subjects in the control and CLL/MBL groups were screened for selected genetic polymorphisms (rs17483466, rs735665, rs7176508, rs872071, rs13397985) that have been associated with the occurrence of CLL and MBL in other...
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Optimization of liver spheroids preparation
Vojtěchová, Tereza ; Boušová, Iva (advisor) ; Szotáková, Barbora (referee)
Charles University Faculty of Pharmacy in Hradec Králové Department of Biochemical Sciences Candidate: Bc. Tereza Vojtěchová Supervisor: assoc. prof. PharmDr. Iva Boušová, Ph.D. Advisor: PharmDr. Martin Ambrož, Ph.D. Title of diploma thesis: Optimization of liver spheroids preparation Various in vitro liver models play an irreplaceable role in preclinical drug evaluation. One of them is multicellular hepatic spheroids. These are 3D cell aggregates that are formed by the process of cellular aggregation. They are used in drug development and represent a promising tool for identifying new targets and drug screening for various liver diseases. The aim of this thesis was to introduce and optimize the preparation of liver spheroids by the "forced-floating" method. The liver of male and female Wistar rats was used for hepatocyte isolation and spheroid preparation. Due to the low viability of isolated hepatocytes, we tried to optimize the isolation procedure. Nevertheless, we managed to obtain only a small number of hepatocytes with sufficient viability for subsequent formation of spheroids. The spheroids were incubated with various lipogenic reagents for 7 and 14 days and their viability was monitored by measuring adenosine triphosphate (ATP) production. Incubation of spheroids with lipogenic substrates...
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The use of new ex vivo tests to find synthetic compounds with anthelmintic effect
Mičundová, Magdalena ; Skálová, Lenka (advisor) ; Szotáková, Barbora (referee)
Charles University Faculty of Pharmacy in Hradec Králové Department of Biochemical Sciences Candidate: Bc. Magdalena Mičundová Supervisor: prof. RNDr. Lenka Skálová, Ph.D. Title of diploma thesis: The use of new ex vivo tests to find synthetic compounds with anthelmintic effect Haemonchus contortus is a parasitic nematode causing disease called haemonchosis in sheep and goats. This worldwide spread parasite feeds on the host's bloodstream, causing anemia and edema that can lead to death of the animal. Anthelmintic drugs are used for haemonchosis treatment, but recently their efficacy has decreased due to development of drug resistance in nematodes. Therefore, it is necessary to look for new drugs that will be effective in resistant nematode strains. In this work the anthelmintic effect of 13 new benzyloxyamide derivates (BLK) was studied in H. contortus eggs and adults. An egg hatch test, in which BLK8 was the most effective compound, was used first. A new method of bioluminiscence determination of adenosine triphosphate (ATP) was used in adults of H. contortus to monitor the effect of BLK analogues on viability of adult nematodes. The efficacy of BLK analogues was compared with the effect of classical anthelmintic levamisole. It is obvious from the results that several BLK analogues (especially...
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Single nucleotide polymorphisms in the pathogenesis of mature B-cell neoplasms
Wagnerová, Andrea ; Szotáková, Barbora (advisor) ; Beránek, Martin (referee)
Charles University Faculty of Pharmacy in Hradec Králové Department of Biochemical Sciences Candidate: Bc. Andrea Wagnerová Supervisor: prof. Ing. Barbora Szotáková, Ph.D., Mgr. Kateřina Černá Pilátová, Ph.D. Title of diploma thesis: Single nucleotide polymorphism in the patogenesis of mature B-cell neoplasms Chronic lymphocytic leukemia (CLL) is a disease characterized by clonal proliferation of B-lymphocytes. CLL is a lymphoproliferative disorder with a number of defined risk factors, but its etiopathogenesis remains unresolved to some degree. Over the past 10-15 years, there have been several studies that primarily suggest a genetic predisposition to the disease. The influence of external factors on the etiology of CLL has not been demonstrated. There is also a defined asymptomatic condition associated with CLL called monoclonal B-lymphocytosis, which is often referred to as a precursor of CLL. Immunophenotyping of lymphocytes by flow cytometry was performed in subjects of the control group (100 subjects) and the CLL/MBL group (patients diagnosed with CLL or MBL, 50 subjects). All subjects in the control and CLL/MBL groups were screened for selected genetic polymorphisms (rs17483466, rs735665, rs7176508, rs872071, rs13397985) that have been associated with the occurrence of CLL and MBL in other...
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The use of new ex vivo tests to find ferns with anthelmintic effect
Bednářová, Klára ; Skálová, Lenka (advisor) ; Szotáková, Barbora (referee)
Charles University, Faculty of Pharmacy in Hradec Králové Department of Biochemical Sciences Candidate: Klára Bednářová Supervisor: prof. RNDr. Lenka Skálová, Ph.D. Title of diploma thesis: The use of new ex vivo tests to find ferns with anthelmintic effect Haemonchus contortus is one of the worldwide spread nematode parasitizing in the gastrointestinal tract of small ruminants. The nematodes cause a disease called haemonchosis. A typical symptom of the disease is anemia resulting from the sucking of blood by nematodes. The disease also reduces productivity and may result in the death of the host. Only a few drugs are used for the treatment of haemonchosis, the number of newly introduced drugs is low. Nowadays, the emerging resistance to anthelmintics is a growing problem due to the high H. contortus adaptivity as well as the incorrect use of synthetic drugs. In addition, the synthetic drugs pollute the environment, which is why there is an effort to find herbal products with an anthelmintic effect. Anthelmintic activity has been demonstrated in some Asian and African ferns, so we decided to test the European fern species and evaluate their anthelmintic activity. Anthelmintic activity against nematodes, specifically H. contortus, was tested using egg hatch test and ATP bioluminescence assay in...
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The effect of selected herbicides on UGTs expression and activity of antioxidant enzymes in Arabidopsis thaliana
Rysová, Samanta ; Matoušková, Petra (advisor) ; Szotáková, Barbora (referee)
Charles University Faculty of Pharmacy in Hradec Králové Department of Biochemical Sciences Candidate: Samanta Rysová Supervisor: doc. Ing. Petra Matoušková, Ph.D. Consultant: RNDr. Radka Podlipná, Ph.D. Title of diploma thesis: The effect of selected herbicides on UGTs expression and activity of antioxidant enzymes in Arabidopsis thaliana Herbicides are widely used to control weeds in agriculture. Although their use is essential to ensure crop production, their effect occurs to be reduced due to the development of herbicide resistence. Therefore it is important to clarify the mechanism of herbicide resistence, so that herbicides can be used effectively and new substances can be developed if necessary. At the same time, herbicides acts as an abiotic stress factor on the plant, thus affecting the antioxidant apparatus of plant cells. The aim of this work was to investigate the effect of selected herbicides - tribenuron-methyl (TBM), pinoxaden (PNX) and sulcotrione (SLC), on the expression of selected UGTs that could play a role in herbicide resistence. Secondary, we want to find out the effect of TBM on the activity of selected antioxidant enzymes - ascorbate peroxidase (APX), catalase (CAT) and superooxide dismutase (SOD). Arabidopsis thaliana was used as a model plant and the experiment was...
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Biological activity of antioxidant compounds in monocytes THP-1
Hájek, Jan ; Boušová, Iva (advisor) ; Szotáková, Barbora (referee)
Charles University in Prague University Roma Tre Faculty of Pharmacy in Hradec Králové Department of Biology Department of Biochemical Sciences Candidate: Jan Hájek Supervisor: PharmDr. Iva Boušová, Ph.D. Prof. Sandra Incerpi, Prof. Jens Z. Pedersen Title of diploma thesis: Biological activity of antioxidant compounds in monocytes THP-1 Elaboration of this work is based on the experiments carried out in the Laboratory of Physiology at University Roma Tre in Rome, under the supervision of Prof. Sandra Incerpi. The team of this laboratory studies the antioxidants of different structures and evaluates their ability to prevent the production of reactive oxygen species (ROS). These reactive species are essential for many physiological processes, but they can also have deleterious effects and participate in the development of various diseases. In this work, I dealt with a study of antioxidant properties of different polyphenolic compounds (mosloflavone, negletein, 5,6-dihydroxyflavone, baicalein, gallic acid, and compound 1625) in the cell culture of human monocytes THP-1 and also in the in vitro test. Three different methods were used: intracellular ROS determination (dichlorofluorescein assay), cytotoxicity assay, and electron paramagnetic resonance spectroscopy (EPR). Mosloflavone showed scavenging...
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