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Accuracy of Personal Glucometers
Kroulíková, Markéta ; Němcová, Andrea (referee) ; Sekora, Jiří (advisor)
This thesis deals with accuracy measurement of personal glucometers. The theoretical part is focused on processing information about glucose and its role in organism, diabetes mellitus, procedures and devices used in self-monitoring of glucose. The next part is focused on preparation of practical part, especially describing available personal glucometer, testing its measuring accuracy, the calculation of necessary measurements to perform the experiment and a description of the reference sample for data measurement.
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Targeting insulin storage forms in pancreatic β-cell secretory granules
Asai, Seiya ; Jiráček, Jiří (advisor) ; Skořepa, Ondřej (referee) ; Koblas, Tomáš (referee)
In this dissertation, we focused on a comprehensive investigation of insulin production, storage and secretion by pancreatic -cells. We successfully developed a new assay for the rapid and sensitive determination of insulin concentration in biological samples. This assay, based on the competition of the measured sample with a radioligand for the insulin receptor, helped us to determine the influence of several low molecular weight compounds, as well as peptides, on insulin secretion. We found that arginine and ornithine have a dose-dependent stimulatory effect on glucose- stimulated insulin secretion from -cells, but that dopamine inhibits insulin secretion. The effect of serotonin on insulin secretion was ambiguous. We also studied the effects of the bone protein osteocalcin and its fragments on insulin secretion. We found that these peptides do not stimulate insulin secretion from -cells, but that osteocalcin may have proliferative properties. We also tested the effect of tryptophan and its metabolites and found that these compounds do not stimulate insulin secretion but that some of them may inhibit secretion at higher concentrations. An important result of the study is the experimental confirmation of the presence of crystalline insulin in the secretory granules of -cells. This is the first...
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Induction of beta-cell proliferation by synthetic modified mRNAs encoding cell cycle regulators
Ivanovská, Dana ; Koblas, Tomáš (advisor) ; Černá, Věra (referee)
Diabetes mellitus is a metabolic disease associated with a high blood glucose level over a prolonged period of time. Hyperglycemia is caused by the loss of pancreatic insulin producing beta cells. Diabetes mellitus II is linked with insulin resistence, which can indirectly lead to beta cell deficiency. It logically follows that the replacement or regeneration of beta cells could lead to a successful remission of diabetes. D type cyclins (D1, D2, D3) and cyclin-dependent kinases (Cdk) 4/6 appear to have the potential to induce beta cell proliferation. These proteins are responsible for driving cell mitotic entry. The aim of this bachelor thesis was to verify the possibility of inducing beta cell proliferation via D type and Cdk4/6 synthetic mRNA transfection. In vitro-synthesized mRNA induces short-therm protein overexpression. Cyclins harboring mutations are characterized by a higher protein stability and an increased half-life. The presence of D type cyclins and Cdk4/6 after cell transfection was detected using indirect immunofluorescence. Also a Western blot analysis with subsequent immunodetection was performed. Transfecting rat islet cells with various D type cyclins and Cdk4/6 mRNA combinations has shown to lead to a significant induction of beta cell proliferation. The levels of beta cell...
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The genetics of type II diabetes
Svobodová, Kristýna ; Ehler, Edvard (advisor) ; Pavlasová, Lenka (referee)
The bachelor thesis The genetics of type II diabetes is compound of several chapter. The major part is general characteristic of diabetes, diagnostics and pathogenesis. The thesis includes history of diabetes too. The last two chapters are focus on genetics. There are many knowledges which have been gained so far and objects future studies. Very interesting is chapter about genetics studies in variol continents, studies of ethnic groups. Key words Diabetes mellitus I., Diabetes mellitus II., disease, genetics, gen, locus, genome-wide association studies, heritability
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Physical activity in primary prevention of type 2 diabetes
Ludvíčková, Dana ; Bunc, Václav (advisor) ; Daďová, Klára (referee)
Title: Physical activity in the primary prevention of type 2 diabetes Objectives: The aim of the survey of this thesis is to focus on the incidence and type of risk factors which could have appeared before type 2 diabetes or prediabetes and how these risk factors have increased the diabetes risk score. If these factors were influenceable or not. Thirteen female patients of diabetological outpatient department of the Hospital in Teplice took part in the survey. They were further asked about the change in their lifestyles. Methods: The research was based on an anonymous survey with 26 questions, which I created. Fifteen forms were distributed to female patients of diabetological outpatient department of the Hospital in Teplice. The average age of the patient was 62,5 years, SD = 6,8. The youngest patient was 42 years old, the oldest was 73. The average time of the disease, which the patient lived with, was 7,3 years, SD = 6,8. The shortest time was 2 years and the longest was 14 years. Thirteen forms were completed properly and completely and were used for the survey. I interviewed two women to make sure the questions were comprehensible. The data I collected were evaluated and commented. Results: The results of my survey confirmed the incidence of leading risk factors for type 2 diabetes, containing...
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