National Repository of Grey Literature 45 records found  beginprevious35 - 44next  jump to record: Search took 0.00 seconds. 
Phenotypic Analyses of the HD transgenic Minipig Model
Motlík, Jan ; Ellederová, Zdeňka
The transgenic model of Huntington’s disease in minipig (TgHD) was created in 2009 and information coding the sequence of N-terminal part of human mutated huntingtin was transferred to subsequent generations from both female and male sides. In each litter, transgenic (TgHD) and wild-type (WT) piglets were born in approximately equal ratio. At present, the Laboratory of Cell Regeneration and Plasticity keeps sets of animals in F2 and F3 generations with identical genetic background and bred in identical conditions of feeding and housing. The present research project was focused on a complex of non-invasive and invasive approaches to WT and TgHD minipigs to achieve the entire phenotypic analysis of HD progression in this large animal model.
Business plan
Krušina, Dan ; Krause, Josef (advisor) ; Motlík, Jan (referee)
This thesis deals with the role of renewable energy sources in the Czech Republic and stresses the importance of various sources of renewable energy and the possibilities for further development, according to the draft of the updated State Energy Policy. The second part of this thesis focuses on the situation of hydro power plants in the Czech Republic with a closer examination of support for this resource. The thesis documents methods and possibilities of operational and investment subsidies, while simultaneously exploring the possibility of using structural funds of European Union in the construction of hydroelectric power plants. The practical part consists of an elaborated business plan for the construction of specific hydroelectric power. The result of this work is an evaluation of the project and the finding that the given investment opportunity is very attractive for the investor. Timeliness of the thesis is mainly in the fact that the work is based on the new situation that has arisen out of the updated legislation on support for renewable energy sources.
Methodology of „acute“and transgenic Huntington disease model design in miniature pigs and its application for new methods of treatment and drugs testing in neurodegenerative diseases area
Motlík, Jan ; Juhás, Štefan ; Juhásová, Jana ; Vodička, Petr ; Baxa, Monika
The aim of this methodology is to develop a biomedical model of Huntington's disease in miniature pigs and its use in practice for preclinical testing of new treatments both pharmacological and using new molecular biological methods.
Methodology of spinal cord injury model design in miniature pigs and its application for new methods of treatment and drugs testing
Maršala, M. ; Motlík, Jan ; Juhás, Štefan ; Juhásová, Jana
The goal of proposed methodology is to describe the possibilities of reproducible and adjustable minipigs spinal cord injury model utilization in preclinical practice for new methods of treatment and drugs testing potentially favorable for therapy of acute and chronic spinal cord injury in human. The methodology has been developed as a part of solution to program of applied research and experimental development ALFA Technology Agency of the Czech Republic, subprogram Progressive technologies, materials and systems (TA01011466; 80%) and Operational Program Research and Development for Innovation Ministry of Education, Youth and Sports (project ExAM - CZ.1.05./2.1.00/03.0124; 20%).
Výzkum a vývoj systémů využívajících obnovitelné zdroje energie a potenciál úspor energie pro bytové a rodinné domy: Vývoj stavebnictví a využívání OZE ve výstavbě
Eurosolar CZ ; Inter-projekt ; ŽDB - závod Viadrus ; UniServis Hašek ; Aton centrum ; POWER SERVICE ; Solar-Dynamics ; Společnost pro techniku prostředí ; CZ BIOM - České sdružení pro biomasu, Praha ; Československá společnost pro sluneční energii, Praha ; Česká společnost pro větrnou energii, Praha ; Asociace pro využití obnovitelných zdrojů energie ; Tomeš, Petr ; Čimbura, Vlastislav ; Dubový, Jan ; Škarpa, Miroslav ; Havlíček, Michal ; Kramoliš, Petr ; Karásek, Dalibor ; Němeček, Josef ; Smrž, Milan ; Mizik, Josef ; Šafařík, Miroslav ; Tywoniak, Jan ; Pešat, Jan ; Hašek, Ilja ; Slejška, Antonín ; Šíma, Antonín ; Petříková, Vlasta ; Kutil, Antonín ; Novotný, Václav ; Židlický, Jiří ; Kottnauer, Antonín ; Peterka, Jaroslav ; Matuška, Tomáš ; Kuřina, Jiří ; Hošek, Jiří ; Sladký, Karel ; Váňa, Jaroslav ; Michalička, Ladislav ; Štekl, Josef ; Motlík, Jan
Rekapitulace řešení projektu v roce 2001 seznam autorů, kteří se na řešení projektu v roce 2001 podíleli. I. Část. Vývoj stavebnictví a využívání OZE ve výstavbě: Tepelně-technické vlastnosti obytných budov. Možnosti porovnání různých opatření k racionálnímu zacházení s energií v budově. Vývoj a trendy v bytové výstavbě. Popis projektu, cíle, plány a hlavní směry řešení úkolu.
Quest for protein biomarkers of neural stem cells differentiation
Skalníková, Helena ; Halada, Petr ; Vodička, Petr ; Motlík, Jan ; Horing, O. ; Jensen, O. N. ; Gadher, S. J. ; Pelech, S. ; Kovářová, Hana
Understanding neurogenesis and neural cell differentiation presents a unique challenge for treatment of nervous system disorders. To gain more insight about molecular mechanism of differentiation of neural cells, we applied different proteomic approaches using classical 2-DE followed by MS and antibody microarrays. Based on 2-DE, profile of constituent proteins of neural stem cells and their differentiated progenies was estabilished at first and then the protein species that are significantly up or down regulated during the differentiation were selected. Differentiation of neural cells was accompanied by changes in the expression of proteins involved in DNA and RNA binding, mRNA processing and transport, stress responses, iron storage and redox regulation. Immunoblot verified changes of hnRNP A1, hnRNP A2/B1, RafB, heme-oxygenasy 2, GRK2 proteins and alphaB-crystallin (S45), CDK1/2 (Y15), PKC mu (S738+S742), proline-rich Akt substrate (T246) phosphorylations during differentiation.
CDC25A je schopna indukovat znovuzahájení meiosy, ale inhibuje metafase I – metafase II přechod
Šolc, Petr ; Šašková, Adéla ; Baran, V. ; Kubelka, Michal ; Motlík, Jan
We have shown that CDC25A protein is expressed in GV-stage oocytes but decreases, in CDK1-dependent manner, during meiotic maturation. As compared with GV-stage only a very low level of CDC25A protein is present at metaphase I (MI) and metaphase II (MII) stages. CDC25A mRNA is stable during entire meiotic maturation. Exogenous CDC25A was sufficient to overcome cAMP-mediated GV-stage block. Using microinjection of GFP-CDC25A and GFP-CDC25B mRNAs constructs we have revealed that CDC25A is exclusively nuclear protein until nuclear envelope break down (NEBD). In contrast CDC25B localizes to cytoplasm at GV-stage oocytes and translocates to nucleus shortly before NEBD. Overexpression of GFP-CDC25A, to interfere with CDC25A degradation during meiotic maturation, resulted in MI block characterized with problems in chromosome congression and spindle formation. This MI block was accompanied with the transient reduction of both CDK1 and MAPK activities. RNAi mediated CDC25A knock-down resulted in a reduced ability to resume meiosis and to reach MII. These data demonstrate that behavior of CDC25A during female meiosis differs significantly from mitosis and CDC25A is involved in both, resumption of meiosis and also in metaphase I spindle formation as a prerequisite for correct MI-MII transition. It is evident that CDC25B is not only important CDC25 phosphatase for meiotic maturation but also CDC25A has its meiotic specific role.
Aurora-A je zhrnuta v znovuzahájení meiosy a formaci metafáze I spindlu
Šašková, Adéla ; Šolc, Petr ; Baran, V. ; Kubelka, Michal ; Motlík, Jan
We study the role of Aurora-A during meiotic maturation of mouse oocytes. Total Aurora-A is present in the nucleus in GV-stage oocytes (G2 equivalent). Additionally, active Aurora-A is localized entirely to the centrosome (MTOC) shorly before germinal vesicle breakdown (GVBD). Compared to somatic cells, where active Aurora-A is at the centrosomes and the spindle poles, active Aurora-A is strictly localized on MTOCs at metaphase I in oocytes. We show that activation of centrosomal Aurora-A is independent on PI3K-PKB and CDK1 signaling pathways. This was proved by cultivation of oocytes in presence of roscovitine (CDK1 inhibitor), LY-294002 (PI3K inhibitor) and SH-6 (PKB inhibitor). Treated oocytes show high phosphorylation of Aurora-A on T288 and centrosome amplification despite the presence of intact nuclear envelope. Silencing of Aurora-A by RNA interference induces incorrect spindle assembly. Oocytes are arrested in prometaphase I and unable to reach metaphase II. After microinjection of eGFP-Aurora-A mRNA into GV-stage oocytes, overexpression of Aurora-A leads to distortion of MI spindle organization as well. Our results indicate that Aurora-A is the key centrosomal player in meiotic maturation, essential for proper spindle formation and metaphase I - metaphase II transition.
Aurora-A je zhrnuta v znovuzahájení meiosy a formaci metafáze I spindlu
Šašková, Adéla ; Šolc, Petr ; Baran, V. ; Kubelka, Michal ; Motlík, Jan
We study the role of Aurora-A during meiotic maturation of mouse oocytes. Total Aurora-A is present in the nucleus in GV-stage oocytes (G2 equivalent). Additionally, active Aurora-A is localized entirely to the centrosome (MTOC) shorly before germinal vesicle breakdown (GVBD). Compared to somatic cells, where active Aurora-A is at the centrosomes and the spindle poles, active Aurora-A is strictly localized on MTOCs at metaphase I in oocytes. We show that activation of centrosomal Aurora-A is independent on PI3K-PKB and CDK1 signaling pathways. This was proved by cultivation of oocytes in presence of roscovitine (CDK1 inhibitor), LY-294002 (PI3K inhibitor) and SH-6 (PKB inhibitor). Treated oocytes show high phosphorylation of Aurora-A on T288 and centrosome amplification despite the presence of intact nuclear envelope. Silencing of Aurora-A by RNA interference induces incorrect spindle assembly. Oocytes are arrested in prometaphase I and unable to reach metaphase II. After microinjection of eGFP-Aurora-A mRNA into GV-stage oocytes, overexpression of Aurora-A leads to distortion of MI spindle organization as well. Our results indicate that Aurora-A is the key centrosomal player in meiotic maturation, essential for proper spindle formation and metaphase I - metaphase II transition.
CDC25A je schopna indukovat znovuzahájení meiosy, ale inhibuje metafase I – metafase II přechod
Šolc, Petr ; Šašková, Adéla ; Baran, V. ; Kubelka, Michal ; Motlík, Jan
We have shown that CDC25A protein is expressed in GV-stage oocytes but decreases, in CDK1-dependent manner, during meiotic maturation. As compared with GV-stage only a very low level of CDC25A protein is present at metaphase I (MI) and metaphase II (MII) stages. CDC25A mRNA is stable during entire meiotic maturation. Exogenous CDC25A was sufficient to overcome cAMP-mediated GV-stage block. Using microinjection of GFP-CDC25A and GFP-CDC25B mRNAs constructs we have revealed that CDC25A is exclusively nuclear protein until nuclear envelope break down (NEBD). In contrast CDC25B localizes to cytoplasm at GV-stage oocytes and translocates to nucleus shortly before NEBD. Overexpression of GFP-CDC25A, to interfere with CDC25A degradation during meiotic maturation, resulted in MI block characterized with problems in chromosome congression and spindle formation. This MI block was accompanied with the transient reduction of both CDK1 and MAPK activities. RNAi mediated CDC25A knock-down resulted in a reduced ability to resume meiosis and to reach MII. These data demonstrate that behavior of CDC25A during female meiosis differs significantly from mitosis and CDC25A is involved in both, resumption of meiosis and also in metaphase I spindle formation as a prerequisite for correct MI-MII transition. It is evident that CDC25B is not only important CDC25 phosphatase for meiotic maturation but also CDC25A has its meiotic specific role.

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