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MUDr. SKALICKÝ, Tomáš Five year period of experimental and clinical experience with radiofrequency ablation of liver tumors is described. RFA considerably extends the survival of patients with non-resectable liver metastases. The method has minimal complications and both mortality and morbidity are low.

The author of this dissertation deals with patients with metastatic colorectal cancer to the liver. Compares the results with serum CEA, MMPs, TIMP patients with benign liver tumors and patients without cancer.

The vast majority of exogenous substances is metabolized in the liver. In the course of the biotransformation, partly biologically non-active products, partly reactive species leading to cell structure injury and even to the liver failure are produced. Oxidative stress plays a significant role in the toxic- and drug-induced liver damage. Endogenous and exogenous antioxidants contribute to equilibrium between the production and the elimination of reactive oxygen species and thus prevent the oxidative stress. In acute experiments in rats we examined the ability of natural antioxidants silymarin, naringin and resveratrol and of synthetic chelator deferipron to protect against liver damage induced by paracetamol, thioacetamide and tamoxifen. The following parameters of oxidative stress were measured in the liver homogenates: level of lipid peroxidation (LP), concentration of reduced glutathione (GSH), activities of glutathione peroxidase (GPx) and of catalase (CAT); in some cases the iron liver content. The following markers of liver damage were measured in serum: alanine aminotransferase (ALT), aspartate aminotransferase (AST), glutamate dehydrogenase (GLDH). Concernig markers of oxidative status, silymarin exerted the most efficient antioxidant properties amelioratig the TAA- and TAM-induced lipid...

The diagnosis of antibody-mediated rejection after liver transplantation is complicated, due to the fact that the clinical and pathological signs of this life- threatening complication are often overlapping with non-immunological symptoms, like biliary obstruction, ischemia, thrombosis and others. Furthermore, the transplanted liver is to a great extent resistant to this type of rejection. Like in the transplanted kidney and heart, the main pathological factors of graft injury are antibodies directed to the mismatched HLA antigens of the organ donor, i.e. donor- specific antibodies. Besides analysis of HLA specificity of antibodies, research lately has been directed to define whether these antibodies are complement-binding or not. Literature data on this are however up till now limited. Therefore, the aim of this diploma thesis was to study the clinical relevance of complement-binding antibodies against HLA antigens in patients after liver transplantation. Our preliminary results suggest that there might be a correlation between the presence of complement-binding antibodies and the development of antibody-mediated rejection. This finding may play a role for improvement of the prognosis of patients after liver transplantation. Key words HLA, antibodies, C4d, complement, liver transplantation

The vast majority of exogenous substances is metabolized in the liver. In the course of the biotransformation, partly biologically non-active products, partly reactive species leading to cell structure injury and even to the liver failure are produced. Oxidative stress plays a significant role in the toxic- and drug-induced liver damage. Endogenous and exogenous antioxidants contribute to equilibrium between the production and the elimination of reactive oxygen species and thus prevent the oxidative stress. In acute experiments in rats we examined the ability of natural antioxidants silymarin, naringin and resveratrol and of synthetic chelator deferipron to protect against liver damage induced by paracetamol, thioacetamide and tamoxifen. The following parameters of oxidative stress were measured in the liver homogenates: level of lipid peroxidation (LP), concentration of reduced glutathione (GSH), activities of glutathione peroxidase (GPx) and of catalase (CAT); in some cases the iron liver content. The following markers of liver damage were measured in serum: alanine aminotransferase (ALT), aspartate aminotransferase (AST), glutamate dehydrogenase (GLDH). Concernig markers of oxidative status, silymarin exerted the most efficient antioxidant properties amelioratig the TAA- and TAM-induced lipid...

Master thesis summarizes latest knowledge in the field of special nutrition for patients with liver condition. Theoretical chapters describe liver physiology and etiology of selected liver diseases e.g. hepatitis, cirrhosis, chemical-driven liver damage. Given the fact the main cause of chronic liver disease is globally considered alcohol, a special chapter is dedicated to this topic which describes pathogenesis of alcoholic liver disease, the effect of chronic alcohol consumption on hepatocytes and other non-parenchymal liver cells. The thesis provides a comprehensive view on the issue of malnutrition and nutrition recommendations in specific liver disease. Practical part of the thesis involved complex questioning of healthcare providers - doctors and nurses - from selected hospital and presents overview of healthcare providers knowledge regarding latest nutrition recommendations in specific liver disease. Key words: liver damage, malnutrition, alcohol, nutrition, diet, cirrhosis, liver physiology

Foundations: Alcohol consumption affects negatively the whole organism and the organ that is damaged most often is liver. Liver diseases start developing subsequently. A whole range of diseases, from the lighter forms such as steatosis to a serious, life-shortening illness - the liver cirrhosis, can be caused by alcohol consumption. The degree of alcohol impact on liver depends on its dosage and length of usage. The degree of liver damage does not depend on the kind of the alcoholic drink but rather on its dosage. An important role in development of serious forms of liver diseases is played by other risk factors (mostly genetic) besides volume of consumed alcohol (Schiff et al, 2007). Therapeutic procedures for people with alcoholic liver damages include above all change of lifestyle including abstinence from alcohol consumption, ideally complete abstinence from cigarette smoking, weight reduction if indicated, and nutritional and farmacological therapy. Liver transplant surgery is required in serious cases. The main aim of my thesis is to chart and describe whether the quality of patients' everyday lives improves after liver transplant. In particular, I intend to focus on the physical, mental, and social areas of their lives. Another objective of this paper is to find out whether the patients'...

Introduction The development of an appropriate animal model of ALF is paramount for the understanding of the disease pathogenesis and evaluation of potential therapeutic approaches. Acute liver failure (ALF) is a severe, usually rapidly progressive disease characterized by high mortality (60 - 90 %). Besides acute liver transplantation which faces a shortage of donors, the only possible therapeutic alternative is applying biological or non-biological liver support systems. To confirm the effectiveness of these methods, clinically relevant model of ALF on a large laboratory animal is essential. Surgically induced ALF models seem to be more reliable than models based on chemical intoxication. Ideal model of ALF has not yet been published. Surgical models are usually performed with devascularisation, large liver resection or hepatectomy. The aim of this work was to introduce three surgical models of ALF and evaluate their usefulness for testing biological and non-biological liver support systems. Materials and Methods Female laboratory pig weighing 35 - 45 kg was used for the experimental study. After induction of general anesthesia the thermodilution catheter was introduced via jugular vein. Femoral artery and vein were cannulated for invasive blood pressure monitoring and for infusions and...

This diploma thesis investigates the relationship between the business cycle and the alcohol consumption by using aggregate data for Czech Republic and constituent regions of Czech Republic in the period 1994-2011. The key question of this study is whether alcohol consumption is pro-cyclical or counter-cyclical. This question was asked in many works (Ruhm, Black, 2002). Unlike American studies, in which alcohol consumption is pro-cyclical, my study shows that the decrease of economic conditions has resulted in increased alcohol consumption in society and therefore indicates to me counter-cyclical. I also found that the divorce has a positive effect on alcohol consumption, while the real price has a negative effect.