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Utilization of energy substrates in white and brown adipose tissue in metabolic syndrome
Seďová, Karolína ; Škop, Vojtěch (advisor) ; Šilhavý, Jan (referee)
1 Abstrakt Hnědá tuková tkáň je unikátní termoregulační orgán, její funkcí je přeměňovat energii ve formě protonového gradientu na energii tepelnou a zároveň snižovat efektivitu metabolismu. Její funkce se zdá být nadějí v léčbě metabolického syndromu a komplikací s ním spojených. Efekt hnědé tukové tkáně v léčbě MS však stále není objasněn a proto jsme chirurgicky odstranili tuto tkáň u potkanů, kteří trpí metabolickým syndromem, abychom objasnili důsledky extirpace na parametry metabolického syndromu. V této práci jsme sledovali aktivitu interskapulární tukové tkáně na parametry metabolického syndromu. Srovnávali jsme parametry mezi kmeny HHTg potkanů a kontrolním kmenem potkanů Wistar a pozorovali jsme nižší hmotnost potkanů kmene HHTg přes projevy ostatních parametrů metabolického syndromu, jako je dyslipidémie, inzulinová rezistence tukové tkáně, vyšší hodnoty NEMK v krvi. Zjistili jsme, že tito potkani mají významně vyšší aktivitu iBAT, jak v inkorporaci palmitátu do lipidů, tak ve spalování lipidů ve formě CO2 a zejména v nižším věku. Tato zjištění nás vedla k hypotéze, že iBAT by mohla mít zásadní vliv na parametry MS u neobézních potkanů. Extirpací iBAT u mladých potkanů, ani u potkanů v pokročilejším věku však neměla zásadní vliv na metabolismus ani na hmotnost. Dokonce došlo ke zlepšení některých...
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Effects of n-3 polyunsaturated fatty acids on development of non-alcoholic fatty liver disease in experiment, prevalence in patients with type 2 diabetes mellitus and metabolic syndrome, non-invasive diagnostics
Dvořák, Karel ; Brůha, Radan (advisor) ; Ehrmann, Jiří (referee) ; Lotková, Halka (referee)
This thesis focuses on the effects of n-3 polyunsaturated fatty acids (n-3 PUFA) on development of non-alcoholic fatty liver disease (NAFLD) in experiment, on prevalence of this condition in patients with type 2 diabetes mellitus and metabolic syndrome and also on non-invasive diagnostics. The aim was to study the effect of n-3 PUFA on NAFLD development in an experimental model and based on analysis of a group of patients with type 2 diabetes and metabolic syndrome to assess the prevalence of this condition. Lastly we aimed to evaluate non-invasive diagnostic methods of liver fibrosis and NASH. We demonstrated beneficial effects of n-3 PUFA administration on NAFLD development in a C57/Bl6 mice high fat methionin-cholin defficient dietary model of NAFLD. n-3 PUFA administration led to biochemical improvement, decrease of lipid accumulation in the liver as well as improvement of histology. These effects are determined by complex modulation of lipid metabolism, mainly due to decrease in availability of fatty acids for triglyceride synthesis in the liver, changes of adipokine levels and amelioration of proinflammatory status in the liver. In a group of type 2 diabetics we found NAFLD prevalence of almost 80%, 14% of these patients had also signs of liver fibrosis or cirrhosis. Non-invasive methods...
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Study of genetic and infectious risk factors in the pathogenesis of obesity in Czech adolescents.
Dušátková, Lenka ; Zamrazilová, Hana (advisor) ; Zapletalová, Jiřina (referee) ; Müllerová, Dana (referee)
4 Abstract The prevalence of obesity and its related cardiometabolic complications in children remains high across the world. Obesity is a multifactorial disease caused by interaction between genes and environmental factors. Genome-wide association studies have discovered several single nucleotide polymorphisms associated with obesity. A causal role of infection in the pathogenesis of obesity has also been considered, particularly the role of adenovirus 36 (Adv36). The aim of the Ph.D. thesis was to investigate the associations of obesity susceptibility loci (TMEM18, SH2B1, KCTD15, PCSK1, BDNF, SEC16B, MC4R, FTO) and Adv36 infection with obesity-related characteristics and complications in the Czech adolescent population. The results are described in eight publications, of which six are original papers and two are reviews. Studies were performed on a cohort of Czech adolescents recruited either from the general population (1,533 individuals from the epidemiological study) and from in-patient or outpatient weight management clinics (562 overweight/obese individuals underwent an intervention). The results demonstrated an association of TMEM18, SEC16B and FTO gene variants with obesity. Some variants of the genes involved in hypothalamic regulation of energy homeostasis − MC4R, BDNF, PCSK1 − were related to...
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Physical Activity and Nutrition in Therapy of Metabolic Syndrome
Joachimová, Marie ; Radvanský, Jiří (advisor) ; Illinger, Vojtěch (referee)
INTRODUCTION: Metabolic syndrome is a cluster of risk factors which tend to occur together and belong to the main causes of cardiovascular disease and type 2 diabetes mellitus. In the treatment of metabolic syndrome dominates pharmacotherapy of the individual components. However, this therapy usually addresses the consequences rather than the causes and puts the patient in the position of a passive recipient of drugs. Although a change of lifestyle should be the cornerstone of prevention and treatment of the metabolic syndrome, the vast majority of the general and professional public doesn't know how and to what extent it can help. OBJECTIVES: The aim of this study was to find recommendations on physical activity and nutrition in relation to the prevention and treatment of metabolic syndrome and the mechanisms of action. METHODS: Information was sought in scientific journals, books and websites of healthcare organizations. Review articles and meta-analysis were selected primarily from the journals, general information and recommendations related to the issues discussed were obtained from the books and websites. RESULTS: The available literature confirmed that the modification of physical activity and nutrition can significantly improve all of the metabolic abnormalities associated with metabolic...
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Antioxidants of natural origin influencing metabolic syndrome
Dlabajová, Denisa ; Karlíčková, Jana (advisor) ; Kašparová, Marie (referee)
Dlabajová D., Antioxidants of natural origin influencing metabolic syndrome, Diploma thesis 2015/2016, Charles University in Prague, Faculty of Pharmacy in Hradec Králové, pp. 61. Large amounts of substances are extracted from plants found all over the world that show antioxidant activity, which prohibits the formation of free radicals. This activity could be beneficial in preventing and curing risk factors of metabolic syndrome. The selection of plants with this effect is shown in my diploma thesis (for example Salvia limbata, Lupinus luteus, Rosmarinus officinalis, Pueraria lobata etc.), which is divided into plant extracts, culinary plants and substances with significant antioxidant activity. Keywords: plants, antioxidants, metabolic syndrome
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Functional genomic and pharmacogenomic analysis of metabolic syndrome aspects
Krupková, Michaela ; Šeda, Ondřej (advisor) ; Haluzík, Martin (referee) ; Polák, Jan (referee)
Metabolic syndrome is a prevalent disease characterized by concurrent manifestation of insulin resistance, obesity, dyslipidemia, hypertension and other hemodynamic and metabolic disorders. It has multifactorial type of inheritance and its resultant phenotype is determined by both environmental and genetic factors as well as their interactions. That is the main reason why comprehensive analysis of the genetic component of this syndrome is complicated in human population. Genetically designed experimental animal models are significant tools for analysis of genetic architecture of human complex conditions including the metabolic syndrome. The aim of this Thesis is utilization of functional and comparative genomic tools to uncover pathogenesis of metabolic syndrome aspects and their genetic determinants. We also studied pharmacogenetic interactions of these genetic determinants with drugs affecting particular components of the metabolic syndrome. Establishing and utilizing several genetically designed congenic rat strains, we undertook four different research projects focusing on pharmacogenetic interaction of all-trans retinoic acid and ondansetron with differential segment of rat chromosome 8, pharmacogenetic interaction of differential segment of rat chromosome 4 and dexamethasone, determining Plzf...
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Effects of selected biologically active natural compounds on mammalian energy metabolism
Seďová, Karolína ; Flachs, Pavel (advisor) ; Doleželová, Šárka (referee)
Obesity is associated with many diseases, particularly type 2 diabetes, hypertension, dyslipidemia , hyperglycemia and cardiovascular diseases. If a patient experiences at least a trio of these diseases are diagnosed metabolic syndrome. The prevalence of obesity and related diseases has increased at an alarming rate in recent years and has become a worldwide health problem. Cardiovascular disease is the leading cause of death worldwide. Some minor components which are commonly found in our diet (eg some plant metabolites), directly or indirectly affect energy metabolism of our body and thus can reduce or even prevent developing health complications associated with the metabolic syndrome. This thesis, aims to clearly summarize the findings and results of scientific studies on selected plant metabolites occurring in extracts of specific plants that have preventive or therapeutic effects on obesity and other components of the metabolic syndrome. This work describes the use of these substances in the pharmaceutical industry and the food industry, the primary natural resources , and mechanisms of action , including effective doses. Powered by TCPDF (www.tcpdf.org)
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Obesity monitoring in middle aged men in Hradec Králové
Senecký, Petr ; Bunc, Václav (advisor) ; Větrovský, Tomáš (referee)
Title: Obesity monitoring in middle aged men in Hradec Kralove Targets: The targets of thesis is to determine prevalence of the obesity in men at age 30 - 50 years in Hradec Kralove. The necessary data for this empirical research will be obtained on the basis of the questionnaires distributed among 30 active athletes and 30 pacients of prof. Martinik's diabetology office, who suffer from obesity and undergo treatment in his office. Subsequently, I will perform a deep analysis of all the data obtained from the questionnaries, in order to identify hazard factors for obesity, stress management, physical aktivity, fixed daily routine and life management or the prevalence of the genetic load in the group of surveyed athletes and surveyed obese patients of prof. Martiník's diabetology office. These data will be then compared in order to identifily the main differences between active athletes and obese patients. Methods: The empirical research was conducted at 30 randomly selected active athletes (at age 30 - 50 years), who live in Hradec Kralove and at 30 random patients (also at age 30 - 50 years) of prof. Martiník, who also live in Hradec Kralove and undergo medical treatment on the basis of the questionnaire, which I created myself and filled personally with the patients and athletes in order to...
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