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Endoglin and livers
Jozefčeková, Nikola ; Doleželová, Eva (advisor) ; Prašnická, Alena (referee)
Author: Nikola Jozefčeková Title: Endoglin and liver Form: Diploma Thesis University: Charles University, Faculty of Pharmacy in Hradec Králové Degree: Pharmacy This diploma thesis concludes the available information about endoglin, its isoforms in the liver and its impact on the liver during various pathological conditions. In the first part of the thesis describes morphology and physiology of the liver, its structure, histology and metabolic functions. Second part contains an information about endoglin, its isoforms and role in TGF-β signaling complex, expression of endoglin and regulation of the expression. In the third part are described liver diseases during which is expression of endoglin changed. This part deals with the significance of endoglin as a diagnostic and prognostic marker. Endoglin (CD105, TGF-β receptor III) is a homodimeric transmembrane glycoprotein and a membrane co-receptor TGF-β with high expression in endothelial cells. Endoglin plays an important role in the vascular development. Endoglin is involved in the processes of angiogenesis, vascular homeostasis and TGF-β signalization. It affects activity of TGF-βRII, ALK1 and ALK5 receptors. Due to the interactions with TGF-β complex, modulation of activity of ALK receptors and Smads, endoglin controls fibrotic and anti-...
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Influence of resveratrol on bile flow.
Paclíková, Kristýna ; Doleželová, Eva (advisor) ; Cermanová, Jolana (referee)
Kristýna Paclíková Influence of resveratrol on bile flow Diploma thesis Charles University in Prague, Faculty of Pharmacy in Hradec Králové Pharmacy Background: Protective effect of resveratrol is shown in many experimental models of cholestasis, but its effect on bile production in healthy individuals has not been studied yet. As the use of resveratrol is frequent in population, the aim of this thesis was to investigate the effect of resveratrol on the bile flow in healthy animals and the clarification of the mechanism of this effect. Methods: Wistar rats (n = 6, in each group, weighing 280 to 320 g) were divided into two groups: control group (Control) and the group of rats administered with resveratrol (10mg/kg/day, p.o.) for 28 days (RES). In vivo clearance study was performed to analyze bile production. Analysis of mRNA and protein expression of the transport proteins was performed by qRT-PCR and Western blot. Results: Resveratrol led to a significant increase in the cumulative bile flow. Analysis of mRNA and protein expression of the transport proteins revealed that bile flow is changed due to posttranscriptional induction of canalicular transporters Bsep and Mrp2. Simultaneously, resveratrol led to induction of Mrp4 efflux protein, expressed at the basolateral membrane of hepatocytes....
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