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T cells labelling by bimodal contrast agent for in vivo studies of stroke
Krijt, Matyáš ; Poljaková, Jitka (advisor) ; Kříž, Jan (referee)
Stroke is a serious brain injury, which causes sudden death or terminates in permanent neurological disability. Nowadays, tissue plasminogen activator (tPA) is used as the only effective treatment of stroke. One of the potential targets for novel therapy are T cells. Even though the explicit role of T cells in the pathogenesis of brain injury, amounts and timing of all T cell subtypes infiltrating into brain during the stroke still needs further investigation. The research in this field is complicated by the lack of efficient methods for in vivo cell tracking. Therefore the aim of this thesis was to develop a method of T cells labelling by MRI contrast agent in order to investigate T cells distribution in ischemic mice model using in vivo MR imaging. T cells were isolated from C57/BL6 mice in two step isolation protocol using gradient centrifugation and magnetic separation with the efficiency of 97 %. The isolated cells were labelled with 100 μg Fe/mL of Molday ION Rhodamine B contrast agent. The labelling efficiency after 17 hours of cells incubation was higher than 99 %. The labelled cells were cultured with CD3 and CD28 antibodies resulting into the 74 % viability of labelled T cells compared to 83 % viability of non labelled T cells. The labelled T cells were visualized by fluorescent...
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Endocrine function of adipose tissue and its role in development of atherosclerosis.
Bošanská, Lenka ; Haluzík, Martin (advisor) ; Vokurka, Martin (referee) ; Kříž, Jan (referee)
Adipose tissue represents a multi-functional endocrine organ. Obesity may lead to the increased release of proinflammatory factors and adhesion molecules from adipose tissue, thus playing an important role in the development of atherosclerosis. Recent research studies were focused on the mechanisms of the endothelial dysfunction, low-grade inflammation and adipose tissue endocrine function dysregulation, and their mutual relationships. These processes are of a great interest due to their clinical relevance and increasing numbers of patients suffering from cardiovascular diseases or being at high risk of early atherosclerosis progression. Exact mechanisms and interrelationships of these factors are yet to be fully clarified. (...) Results of this project may represent another step on the way to the detailed explanation of the mechanisms and relationships between adipose tissue endocrine function or dysfunction and atherosclerosis development. Better understanding and ability to prevent or treat the negative metabolic effects of adipose tissue-derived molecules would be of great importance for numbers of patients at high risk of cardiovascular diseases.
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Surgical sex conversion
Dohnalová, Lenka ; Šamánková, Marie (advisor) ; Kříž, Jan (referee)
The aim of this thesis is to concentrate to inform the comunity with less known problems of nursing the patients with disorders of sexual identification - with transexuality. The persons with this disorder have genetic and somatic equipment belong to one sex, however their sexual identification is orientated to contrary gender. Surgical conversion of sex of transexuals forms oni y one of the aspects by complex approach to this complicated disorder. The decision when the surgery is indicated is up to sexologist and authorized by the committee. The commision decision is based on detailed and prolonged psychological approach to everyone. The observation is pointed at adaptation for new social status a:fter longtime hormonal treatment and follows a:fter operation and o:fficial conversion ofthe gender as well. Powered by TCPDF (www.tcpdf.org)
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