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Determination of genetic markers for kidney complications of diabetes mellitus.
 Vedralová, Marcela ; Kotrbová - Kozak, Anna Katarzyna (advisor) ; Kalousová, Marta (referee)
In this work we chose to study genes whose protein products significantly affect calcium- phosphate metabolism in kidneys and are hypothesized to be involved in the pathogenesis of diabetes as well as kidney damage. Vitamin D receptor (VDR) belongs to a large family of nuclear receptors and transcription factors. VDR is expressed in many cells in different tissues and activation of this receptor by its ligand 1,25 - dihydroxyvitamin D3 affects expression of many genes. Using restriction endonucleases Bsm I, Fok I, Taq I and Apa I, there were identified polymorphic sites in VDR gene that were found to be associated with certain chronic diseases, like type 1 and type 2 diabetes and lung carcinoma. Parathyreoid hormone is one of the most important regulators of calcium and phosphate metabolism. Allelic polymorphism of PTH gene involves B/b and D/d alleles that can participate in pathogenesis of kidney complications as well. Aims: We aimed to determine whether there is a difference in frequency of certain combinations of VDR and PTH genotypes between group of diabetic patients with kidney complications and diabetic patients without kidney complications. We also assessed influence of single-nucleotide polymorphisms at VDR gene mRNA expression. Methods: DNA was isolated by salt-extraction method and...
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