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National Repository of Grey Literature 2 records found  Search took 0.01 seconds. 
Epigenetic Alternations in Head and Neck Squamous Cell Carcinoma: Potential Biomarkers
 Kovaříková, Helena ; Palička, Vladimír (advisor) ; Friedecký, David (referee) ; Pešta, Martin (referee)
5 1 Summary ENG Head and neck squamous cell carcinomas are a group of heterogenic tumors arising from epithelial tissue of aerodigestive tract characterized by difficult diagnosis, treatment and prognosis. Alcohol consumption, smoking and high-risk human papillomavirus infection are very well described risk factors of head and neck cancer development. Sinonasal carcinomas are group of malignancies developing in nasal and paranasal sinuses. Oropharyngeal carcinomas are malignancies developing in the throat area downstream to oral cavity. microRNAs (miRNAs) are short (~23 nucleotides) non-coding RNA molecules participating in regulation of gene expression. Primary function of miRNAs is negative translation regulation as part of RISC (RNA-induced silencing complex) by translational repression and mRNA degradation. miRNAs are involved in various disease pathologies such as neurodegenerative diseases, metabolic disorders and cancer. Moreover, microRNAs have been recognized as key molecules in cancer development and progression in various types of tumors. My doctoral study research activities were focused on investigation of relative expression of several preselected miRNAs (using real-time PCR) and the relationship between their expression and clinicopathological characteristics of the squamous cell carcinoma...
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Sledování transferu genetické informace z krmiva u modelových zvířat
 Kovaříková, Helena
The aim of this thesis is to observe the possibility of transfer of genetic information from feed, made of wheat with unusual grain colour and wheat with standard grain colour, into the blood of rat test subjects. Out of 64 rats that were tested, 32 were fed with purple grain (Konini variety) and formed the test group. A further 32 rats represented the study's control group and were fed with standard coloured wheat (Bohemia variety). The blood sample was acquired from the test animals. From 12 samples (6 samples from each group) DNA was isolated. Plant DNA was detected in the samples of DNA of rats by PCR using primers amplifying fragments of housekeeping genes specific for DNA of wheat (wheat genes Gapdh and Actin). No DNA fragments of wheat were detected in the blood of the rats. The results show, that there is no transfer of genetic information from the feed through the gastrointestinal tract to the blood of the animal.
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See also: similar author names
9 KOVÁŘÍKOVÁ, Hana
9 Kovaříková, Hana
1 Kovaříková, Hedvika
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