|
Quality of life of the oncological patients, undergoing the chemotherapy
Vávrová, Božena ; Hodačová, Lenka (advisor) ; Slowik, Regina (referee) ; Mareš, Jiří (referee)
This bachelor's thesis discuss the individual perception of the qualitiy of life of the oncological patiens. It also describes the problems of livng with cancer, characterizes the palliative care and focuses on nursing care in oncology, as well as it determines the concepts - quality of life and posttraumatic growth. The main focus lies in the qulitative research, which compres the differences in perception of the quality of life between two goups of patients. First, a group of patients, currently undergoing chemotherapy, and second, a group of patients with already finished treatment and recently in remision of their oncological disease. The interviews with patients help to describe the influence of cancer on quality of their life, what good or which lesson it had brought to their lives. The other aim was to determine the "crisis level" by the "crisis curve graph".
|
| |
|
Materials research of colour layer on art works
Grünwaldová, Veronika ; Hradil, David (advisor) ; Feltl, Ladislav (referee) ; Kratochvíl, Bohumil (referee)
Charles University in Prague Faculty of Science Department of Analytical Chemistry SUMMARY OF PhD THESIS Material Research of Colour Layer in Artworks Ph.D. programme: Analytical Chemistry Ing. Veronika Grünwaldová Prague 2010 2 Contents 3 CONTENTS Introduction and literature search.............................................................. 4 Experimental section.....................................................................................5 1. X-ray powder microdiffraction ...............................................................5 1.1. Analysis of fragments and cross-sections ...........................................................6 1.2. Preparation and analysis of microtome slices.....................................................7 2. Microscopy methods and image analysis................................................8 2.I. Test of minimum necessary resolution - model shapes and real samples ........9 2.2. Possibilities of using EDX mapping of elements.................................................12 2.3. Qualitative and quantitative characterization of selected pigments in real colour layers .............................................................................................................................13 3. Mobile X-ray...
|
|
Overcoming drug resistance: The discovery, design and characterization of new nonpeptidic inhibitors of HIV - 1 protease
Kožíšek, Milan ; Konvalinka, Jan (advisor) ; Majer, Pavel (referee) ; Obšil, Tomáš (referee)
Ph.D. thesis abstract Overcoming drug resistance : The discovery, design and characterization of new nonpeptidic inhibitors of HIV-1 protease Milan Kožíšek, M.Sc. Supervisor : Jan Konvalinka, Ph.D. PPrraagguuee 22001100 Department of Biochemistry Faculty of Science Charles University, Prague, Czech Republic Institute of Organic Chemistry and Biochemistry Gilead Sciences & IOCB Research Centre Academy of Sciences of the Czech Republic 3 Abstract HIV-1 protease is an aspartic protease which plays an essential role in the life cycle of HIV virus. It is responsible for the cleavage of the viral polyproteins into the structural and functional proteins during viral maturation. The efficient inhibition of the protease thus leads to the formation of immature and non-infectious viral particles. The introduction of protease inhibitors dramatically changed the treatment of retroviral infection. The viral replication was reduced to undetectable level and the rate of disease progression was significantly lowered. However, resistance to the inhibitors was observed. The first inhibitors had limited bioavailability, caused severe side effects and easily developed resistance. To combat these negative factors, second-generation inhibitors have been developed. Understanding the mechanisms of resistance toward inhibitors is...
|
|
Studies of NK cell receptors and other proteins using recombinant expression and mass spectrometry
Kavan, Daniel ; Bezouška, Karel (advisor) ; Tučková, Ludmila (referee) ; Řehulka, Pavel (referee)
Charles University in Prague Faculty of Science Department of Biochemistry Studies of NK cell receptors and other proteins using recombinant expressions and mass spectrometry Summary of Ph. D. Thesis Daniel Kavan Supervisor: Prof. RNDr. Karel Bezouška, DSc. Prague 2010 Daniel Kavan Introduction Introduction NK cells and CD69 as one of their surface receptors Natural killer cells (NK cells) are the subpopulation of large granular lymfocytes, which lacks the surface receptors typical for B cells or T cells. They are characterized by the presence of NKp46 and NKp30 [Moretta L. et. al. 2002], however. They were named natural killers according to their function in the organism, as they do not need any activation and nevertheless they are able to eliminate abnormal (i. e. infected or transformed) cells from the tissue [Kiessling R. et. al. 1975]. This function is dependent on scanning the major histocompatibility complex (MHC) class I molecules of ambient cells. The resulting action (killing or not killing the target cell) is dependent on the balance of activating and inhibiting signals mediated by the NK cell surface receptors and forwarded to the specific signaling pathway [Raulet D. H. et. al. 2001]. Specificity of NK cells is not based only on one type of antigen receptor as it is in case of T and B cells,...
|
|
Characterization of recombinant human serine racemase
Hoffman, Hillary Elizabeth ; Konvalinka, Jan (advisor) ; Křen, Vladimír (referee) ; Čeřovská, Noemi (referee)
6 Brief Abstract The pyridoxal-5'-phosphate-dependent enzyme serine racemase (SR) is responsible for the biosynthesis of D-serine in the mammalian central nervous system. D-serine acts as a neurotransmitter and coagonist, together with L-glutamate, of ionotropic N-methyl-D-aspartate receptors (NMDARs). Excitotoxic D-serine levels have been implicated in neuropathologies including Alzheimer's disease and amyotrophic lateral sclerosis. SR inhibitors offer a novel and potentially highly specific approach for attenuation of NMDAR-mediated glutamate excitotoxicity and for further study of the pathway. Many of the SR inhibitors described to date are small, naturally occurring compounds, and novel structures capable of influencing SR's activity are highly sought after. Moreover, structural information about this enigmatic enzyme is lacking, and suitable animal models need to be identified for inhibitor studies. This thesis presents the first published biochemical comparison of mouse and human SR orthologs, validating, at least in part, the use of mouse models in SR research. Additionally, hydroxamic acids are introduced as a novel class of SR inhibitors. While the experimentally determined structure of a mammalian SR remains elusive, random and site-directed mutagenesis experiments in combination with multiple...
|
|
Gene Therapy of CML: Experimental Vaccines against Bcr-abl-transformed Cells
Lučanský, Vincent ; Vonka, Vladimír (advisor) ; Roubalová, Kateřina (referee) ; Reiniš, Milan (referee)
Chronic myeloid leukemia is malignant disease characterized by myeloproliferative clonal expansion of hematopoietic stem cell. It is causally associated with the formation of the so called Philadelphia chromosome and production of its specific product, the chimeric BCR-ABL protein. The amino acid sequence of the fusion region is unique, implying that the BCR-ABL protein carries tumor specific antigen. Currently imatinib mesylate dominates the treatment of CML. It is well tolerated and when compared to the other drugs used, it prolongs the life expectancy significantly. Unfortunately, it is not capable to cure the disease. The only potentially curative approach nowadays is the bone marrow transplantation; however, it is connected with a relatively high morbidity and mortality. Moreover, it is available only to a minority of the patients. Under these circumstances the need for the development of a relatively safe and generally available treatment is understandable. Immunotherapy could be such a treatment. Several experimental vaccines based on BCR-ABL sequence were developed and tested in mice in our institute. The DNA vaccines used were carrying sequences coding for the whole BCR-ABL protein, or for 25 amino acids long junction region (these DNA sequences were fused with adjuvant genes such as...
|
|
Characterization of organic compounds in PM1 aerosol in Kladno in winter 2016
Křůmal, Kamil ; Mikuška, Pavel ; Večeřa, Zbyněk
In this work the organic compounds and organic markers used for the identification of main aerosol sources were measured in PM1 aerosol in a small town (Kladno-Švermov) near Prague. Monosaccharide anhydrides and resin acids (emissions from biomass combustion) were found especially. Polycyclic aromatic hydrocarbons (emissions from traffic and incomplete combustion), hopanes (traffic, coal combustion), steranes (traffic), saccharides and alkanes were other groups of analysed organic compounds.
|
| |
|
Partial purification and characterization of polygalacturonases of Geotrichum candidum.
Jäger, Jakub ; Breierová, Emília (referee) ; Stratilová, Eva (advisor)
This work discusses the possibilities of using microbial degradation of grape pomace, main waste material from wine production, to preparate industrially important enzymes. The issue is focused on the production of pectolytic enzymes, particularly polygalacturonase, by Geotrichum candidum CCY 16-1-29 via solid state fermentation on grape pomace. The theoretical part of the bachelor thesis focuses on studying plant cells and saccharides from which the plant cell wall is made of, mainly pectin. Cell wall sacharides were used as a carbon source for solid state fermentation (SSF) and pectin as an inductor of pectolytic enzymes. This bachelor thesis also deals with the enzymatic degradation of cell wall polysacharides. The greatest attention is paid to degrade pectin and pectolytic enzyme function. Production of pectolytic enzymes is mentioned subsequently. The last chapter from the theoretical part is dedicated to technical use of pectolytic enzymes. In the experimental part of this work I deal with the partial purification and characterization of majority polygalacturonase produced on the seventh day of cultivation, when another increase of extracellular polygalacturonase activity occurred. The yield of cultivation was 43,5 mg of protein extract /100 g of grape pomace. The extract contained protein, and its activity was lyophilisate. Its specific activity was protein. The enzyme was produced in at least four forms differing in pH optimum (4,0; 4,4; 4,8; 5,2). The pH optimum for majority polygalacturonase was 4,8. Action pattern of this enzyme determined as the dependence of polymeric substrate viscosity decrease on its degradation showed that the enzyme is a typical polygalacturonase with random action pattern (EC 3.2.1.15).Value of Km reached indicating a high affinity for this substrate. The amino acid sequence "SNNVVSNVNILSSQVVNSDNGVR" obtained by mass spectrometry after SDS-PAGE and tryptic digestion, was identified as a stretch of primary structure of polygalacturonase of Ap2PG1 G. candidum based on the comparison with proteins from the Uniprot database. It shows the highest similarity with other polygalacturonases of G. candidum S31PG1, S31PG2 and G. klebahnii PSE3. On the basis of this similarity to enzymes produced by phytopathogenic strains of G. candidum and the fact that this enzyme was not produced only in the early stages of cultivation, it can be assumed, that the strain of G. candidum CCY 16-1-29 acted also as a phytopathogenic strain.
|
guest ::
