|
|
Occurrence of pharmaceuticals in drinking water sources and their removal by waterworks processes
Šmerda, Martin ; Kučera, Tomáš (referee) ; Biela, Renata (advisor)
The bachelor thesis deals with pharmaceuticals in drinking water and is divided into two parts, the theoretical part describes the sources of water pollution by pharmaceuticals, the most common pharmaceuticals found in drinking water sources in the world, the consumption of pharmaceuticals in the Czech Republic and their impact on human health and the ecosystem. Another topic addressed was the possibilities of removing pharmaceuticals in water treatment processes such as adsorption, oxidation and disinfection, osmosis and reverse osmosis and UV radiation. The last topic of the theoretical part were examples of water treatment plants with drug monitoring, where their technology was discussed. In the practical part of the bachelor's thesis, the X water treatment plant, concentration processing and efficiency of the water treatment plant technology were discussed.
|
|
|
Použití kapalinové chromatografie v analýze vzorků životního prostředí
KŘÍŽOVÁ, Monika
This work deals with the use of HPLC method in the analysis of environmental samples. Cigarette butts are one of the most common garbage in nature. These cigarette butts may contain high amounts of polycyclic aromatic hydrocarbons (PAHs) and many other toxic and chemical compounds, which may contaminate the environment. One of the aims of this work was to optimize extraction process of 16 priority PAHs from freshly smoked cigarette butts and the HPLC/FLD analytical method and consequently to determine their contents in collected samples. The second part of the work is devoted to the introduction of a method suitable for the quantitative evaluation of metformin loss in 100% aqueous samples. The method will be further used for the analysis of standard solutions in the monitoring and evaluation of possible photochemical reactions of metformin.
|
|
|
Effect of metformin on glucose tolerance in relation to fat content in diet
Kuchaříková, Petra ; Horáková, Olga (advisor) ; Škop, Vojtěch (referee)
Prevalence of obesity and associated diseases like type 2 diabetes has increased rapidly during last years. These diseases closely relate to each other. Obesity leads to insulin resistence, which directly precedes type 2 diabetes. Metformin is the most prescribed medicament for type 2 diabetic patients and insulin resistant people. It improves glucose tolerance and insulin resistance. Enzyme AMP-activated protein kinase (AMPK) is strogly involved in metformin action. The latest studies using transgenic models lacking AMPK suggest, that notable part of mechanisms involved in metformin action is independent on AMPK. n-3 polyunsaturated fatty acids (n-3 PUFA), namely eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA), which are abundant in sea fish, have beneficial effects on metabolism. These fatty acids lower plasma lipids and exert cardioprotective effects. n-3 PUFA also prevent development of insulin resistence and type 2 diabetes in rodents. The aim of this thesis was to characterise acute effects of metformin on glucose homeostasis, impact of short term diet intervention with diet rich in n-3 PUFA on metformin action and the role of insulin stimulated signalling pathways and AMPK. Results suggest that early effect of metformin is dose dependent and that single dose of metformin...
|
|
|
The analysis of pharmacotherapy by patients suffering with DM in Greece I
Kalaitzidis, Georgios ; Vlček, Jiří (advisor) ; Doseděl, Martin (referee)
The analysis of pharmacotherapy by patients suffering with DM in Greece I Author: Georgios Kalaitzidis Tutor: Professor RNDr.Jiri Vlcek,CSc. Department of Social and Clinical Pharmacy, Charles University in Prague, Faculty of Pharmacy in Hradec Kralove. Introduction: The diabetes in developed countries concerns 11% of people over 70 years and is the cause of 3% of total deaths in general population. Aim: The aim of the study was to assess the Pharmacotherapy of Diabetes mellitus type II in a pharmacy of a small town of Greece, Veria. Methods: It is retrospective cross-sectional study, which was conducted in a pharmacy in a small town of Greece, Veria. The study population consists of 60 patients with known Type II diabetes Melitus. The data collection was performed by a self-reported questionnaire, which was created and developed by the researcher and filled by the respondents. Results: The mean age of the sample was 56.5±17.5 years. Most of them were females (n=40). Most of the patients knew their fasting glucose level (93.3%,n=56).Of the patients who knew their fasting glucose level, 36 (64.3%) patients had high fasting glucose level and 20 (35.7%) had physiological fasting glucose level. From all the patients(n=60), some of them visited their physician every 6 months (n=24), and every 3 months...
|
|
|
Intensive care of patient with metformin intoxication
Zajícová, Alena ; Povolná, Pavla (advisor) ; Hocková, Jana (referee)
Metformin is the first-line oral antidiabetic drug for patients with type 2 diabetes mellitus. As the rate of new diagnosed cases of diabetes increases year-on-year, the number of patients who are prescribed metformin rises as well. In the Czech Republic only, 858,010 patients were treated for diabetes in 2015. 786,586 of them were treated for the type 2 diabetes mellitus. Metformin intoxication, called also MALA (metformin- associated lactic acidosis) after its main symptom, is a rare complication (≤ 10 cases per 100,000 patients per year) in the metformin treatment, but the mortality is high (up to 50%). Metformin-induced lactic acidosis develops when the contraindications of metformin therapy are not respected or in the event of an acute disease linked with dehydration and hypoxia. Patients with MALA are hospitalized at the int ernal medicine intensive care unit or the department of anesthesiology and critical care with multiple organ failure. This thesis aims at determining whether procedural nursing care standards, implemented in the form of a nursing process, are actively used in practice on intensive care beds. Methodology: The empirical part is compiled in the form of a qualitative research, as a case study of a female patient suffering from metformin intoxication, caused by a suicide...
|
|
|
Signalling pathways in pancreatic cancer and its treatment by targeting of mitochondria
Ezrová, Zuzana ; Neužil, Jiří (advisor) ; Masařík, Michal (referee) ; Divoký, Vladimír (referee)
Pancreatic cancer is one of the deadliest types of malignant diseases. Asymptomatic early tumour stages, tumour heterogeneity, cancer cell plasticity and unusually dense pancreatic stroma are responsible for the poor prognosis attributed to late diagnosis and therapy resistance. Therefore, targeting of a pivotal element common for any cell type within the tumour, e.g. mitochondria, may bring significant improvement. In this work, we demonstrate mitochondrial targeting of metformin, an anti-diabetic drug associated with reduced risk of developing pancreatic cancer, substantially increases accumulation of the compound in mitochondria. In consequence, we show that mitochondrially targeted metformin, MitoMet, eliminates pancreatic cancer cells in more than 1000-fold lower concentration than used for its parental compound. Following interaction with respiratory complex I (CI), MitoMet inhibits mitochondrial respiration, activates AMP-activated protein kinase pathway and causes depolarization of mitochondrial membrane potential in pancreatic cancer cells. Moreover, MitoMet induces cell cycle arrest and apoptosis, which is partially mediated via increased level of reactive oxygen species (ROS), and suppresses pancreatic tumour growth in vivo. Interestingly, SMAD4-deficient pancreatic cancer cells manifest...
|
|
|
Effect of biguanides on liver cells metabolism
Švecová, Eliška
The extract from the plant Galega officinalis containing the guanidine derivative galegin has been used in the treatment of diabetes-associated complications since middle ages. Nevertheless, the positive effects of the treatment were often overweight by the adverse side effects. Some sixty years ago guanidin was replaced by the less toxic synthetic biguanide derivatives - metformin, phenformin and buformin, the latter two being withdrawn due to the unacceptable risk of fatal lactate acidosis. Metformin is still widely used antidiabetics and belongs to the first choice drugs in the treatment of type 2 diabetes. Phenformin is now gaining renewed attention with regard to its antineoplastic properties. Despite its long-term clinical use the mechanism of biguanides action is not fully understood yet. At present it is generally accepted that the core of its antihyperglycemic effect lays in the inhibition of hepatic gluconeogenesis. In contrast, there is less consensus regarding the particular metabolic pathway or target that are responsible for the metformin-induced attenuation of gluconeogenesis. For a long time, a hot candidate for metformin target in the cell was AMPK (AMP-activated kinase) but the metformin effect was proved also in mice carrying the dominant negative mutation of AMPK α subunit....
|
|
|
Intensive care of patient with metformin intoxication
Zajícová, Alena ; Povolná, Pavla (advisor) ; Hocková, Jana (referee)
Metformin is the first-line oral antidiabetic drug for patients with type 2 diabetes mellitus. As the rate of new diagnosed cases of diabetes increases year-on-year, the number of patients who are prescribed metformin rises as well. In the Czech Republic only, 858,010 patients were treated for diabetes in 2015. 786,586 of them were treated for the type 2 diabetes mellitus. Metformin intoxication, called also MALA (metformin- associated lactic acidosis) after its main symptom, is a rare complication (≤ 10 cases per 100,000 patients per year) in the metformin treatment, but the mortality is high (up to 50%). Metformin-induced lactic acidosis develops when the contraindications of metformin therapy are not respected or in the event of an acute disease linked with dehydration and hypoxia. Patients with MALA are hospitalized at the int ernal medicine intensive care unit or the department of anesthesiology and critical care with multiple organ failure. This thesis aims at determining whether procedural nursing care standards, implemented in the form of a nursing process, are actively used in practice on intensive care beds. Methodology: The empirical part is compiled in the form of a qualitative research, as a case study of a female patient suffering from metformin intoxication, caused by a suicide...
|
|
| |
|
| |
guest ::
