National Repository of Grey Literature 5 records found  Search took 0.00 seconds. 
Frequency of occurrence of selected single nucleotide polymorphisms of CYP2C8 and MDR1 in the Czech population and their influence on the effect of amiodarone
Pechandová, Kristina ; Perlík, František (advisor) ; Král, Jiří (referee) ; Anzenbacher, Pavel (referee)
Frekvence výskytu vybraných bodových polymorfismů CYP2C8 a MDR1 v české populaci a jejich vliv na působení amiodaronu Úvod: Variabilita lékové odpovědi je někdy podmíněna genetickými rozdíly v metabolismu a transportu léčiv. Interindividuální rozdíly jsou často způsobeny polymorfismy, které ovlivňují biotransformační aktivitu enzymů a expresi transportérů. V disertační práci jsme věnovali pozornost cytochromu P450 izoenzymu CYP2C8 a MDR1. Nejprve jsme popsali frekvenci výskytu vybraných variantních alel CYP2C8*2, CYP2C8*3 (2 substituce v exonu 3 a 8, CYP2C8*3G416A a CYP2C8*3A1196G), CYP2C8*4, CYP2C8 P404A u zdravé české populace a variantních alel MDR1 v exonech: 26 C3435T, 21 G2677A/T, 12 C1236T a 17 T-76A. Následně jsme sledovali vliv těchto polymorfismů na působení amiodaronu u vybraného souboru pacientů. Metody: Genotyp MDR1 a CYP2C8 jsme stanovili pomocí PCR-RFLP za využití specifických restrikčních enzymů a primerů. Frekvence genotypů MDR1jsme určili u 189 zdravých dobrovolníků a CYP2C8 u 161 zdravých osob. Do sledování jsme dále zařadili 63 pacientů užívajících amiodaron déle než dva měsíce. Jejich léčbu jsme posuzovali ze záznamů lékařské dokumentace, s využitím standardních biochemických a hematologických vyšetření a záznamů EKG. Koncentrace amiodaronu a jeho metabolitu N-...
Frequency of selected genetic polymorphisms of cytochrome P450 in the Czech population and the influence of CYP2C9 genotype on the hypolipidemic effect of fluvastatin
Buzková, Helena ; Perlík, František (advisor) ; Bultas, Jan (referee) ; Mičuda, Stanislav (referee)
55 Abstract Frequency of selected genetic polymorphisms of cytochrome P450 in the Czech population and the influence of CYP2C9 genotype on the hypolipidemic effect of fluvastatin Introduction: One of the main factors of genetically determined variability in response of humans to administered drugs are differences in catalytic activity of metabolizing enzymes, which are caused mainly by genetic polymorphisms in cytochrom P450 family enzymes. This thesis consists of two parts and it is presented as a commentary to the original papers. The first aim was to investigate the frequency of functionally important variant alleles of three main isoenzymes of cytochrome P450 gene: CYP2D6, CYP2C9, CYP2C19, throughout the Czech population, predict the prevalence of poor metabolizer phenotypes, and then to compare the results to the data from other populations. Secondly, we analysed the correlation between the CYP2C9 genotype and cholesterol-lowering effect of fluvastatin in human hypercholesterolemic patients. Methods: Genotypes were determined by PCR-RFLP. The presence of alleles CYP2D6*1, *6, *5, *4, *3, and gene duplication was analysed in 233 healthy volunteers, CYP2C9*1, *2 and*3 in 254 subjects and CYP2C19*1, *2 and *2 in 218 subjects. Eighty seven patients on fluvastatin therapy, and 48 patients on monotherapy...
Frequency of occurrence of selected single nucleotide polymorphisms of CYP2C8 and MDR1 in the Czech population and their influence on the effect of amiodarone
Pechandová, Kristina ; Perlík, František (advisor) ; Král, Jiří (referee) ; Anzenbacher, Pavel (referee)
Frequency of occurrence of selected single nucleotide polymorphisms of CYP2C8 and MDR1 in the Czech population and their influence on the effect of amiodarone Introduction: Variability in drug response is sometimes conditioned by genetic differences in the metabolism and the transport of drugs. Interindividual differences are often caused by polymorphisms affecting biotransformation activity of enzymes and expression of transporters. In the thesis we paid attention to the cytochrome P450 CYP2C8 and MDR1. First, we described the frequency of occurrence of selected variant alleles CYP2C8 * 2, CYP2C8 * 3 (2 substitution in exon 3 and 8, CYP2C8 and CYP2C8 * 3G416A * 3A1196G), CYP2C8 * 4, CYP2C8 P404A in the healthy Czech population and MDR1 variant alleles in these exons: 26 C3435T, 21 G2677A/T, 12 C1236T a 17 T-76A. Subsequently, we studied the influence of these polymorphisms on effects of amiodarone in the selected group of patients. Methods: We determined genotypes MDR1 a CYP2C8 by PCR-RFLP by using restriction enzymes and specific primers. We determined the frequency of MDR1 genotypes in 189 healthy volunteers and CYP2C8 in 161 healthy subjects. Further we included into the study 63 patients treated with amiodarone for longer than two months. Their treatment was assessed from medical records and...
Frequency of selected genetic polymorphisms of cytochrome P450 in the Czech population and the influence of CYP2C9 genotype on the hypolipidemic effect of fluvastatin
Buzková, Helena ; Perlík, František (advisor) ; Bultas, Jan (referee) ; Mičuda, Stanislav (referee)
55 Abstract Frequency of selected genetic polymorphisms of cytochrome P450 in the Czech population and the influence of CYP2C9 genotype on the hypolipidemic effect of fluvastatin Introduction: One of the main factors of genetically determined variability in response of humans to administered drugs are differences in catalytic activity of metabolizing enzymes, which are caused mainly by genetic polymorphisms in cytochrom P450 family enzymes. This thesis consists of two parts and it is presented as a commentary to the original papers. The first aim was to investigate the frequency of functionally important variant alleles of three main isoenzymes of cytochrome P450 gene: CYP2D6, CYP2C9, CYP2C19, throughout the Czech population, predict the prevalence of poor metabolizer phenotypes, and then to compare the results to the data from other populations. Secondly, we analysed the correlation between the CYP2C9 genotype and cholesterol-lowering effect of fluvastatin in human hypercholesterolemic patients. Methods: Genotypes were determined by PCR-RFLP. The presence of alleles CYP2D6*1, *6, *5, *4, *3, and gene duplication was analysed in 233 healthy volunteers, CYP2C9*1, *2 and*3 in 254 subjects and CYP2C19*1, *2 and *2 in 218 subjects. Eighty seven patients on fluvastatin therapy, and 48 patients on monotherapy...
Frequency of occurrence of selected single nucleotide polymorphisms of CYP2C8 and MDR1 in the Czech population and their influence on the effect of amiodarone
Pechandová, Kristina ; Perlík, František (advisor) ; Král, Jiří (referee) ; Anzenbacher, Pavel (referee)
Frekvence výskytu vybraných bodových polymorfismů CYP2C8 a MDR1 v české populaci a jejich vliv na působení amiodaronu Úvod: Variabilita lékové odpovědi je někdy podmíněna genetickými rozdíly v metabolismu a transportu léčiv. Interindividuální rozdíly jsou často způsobeny polymorfismy, které ovlivňují biotransformační aktivitu enzymů a expresi transportérů. V disertační práci jsme věnovali pozornost cytochromu P450 izoenzymu CYP2C8 a MDR1. Nejprve jsme popsali frekvenci výskytu vybraných variantních alel CYP2C8*2, CYP2C8*3 (2 substituce v exonu 3 a 8, CYP2C8*3G416A a CYP2C8*3A1196G), CYP2C8*4, CYP2C8 P404A u zdravé české populace a variantních alel MDR1 v exonech: 26 C3435T, 21 G2677A/T, 12 C1236T a 17 T-76A. Následně jsme sledovali vliv těchto polymorfismů na působení amiodaronu u vybraného souboru pacientů. Metody: Genotyp MDR1 a CYP2C8 jsme stanovili pomocí PCR-RFLP za využití specifických restrikčních enzymů a primerů. Frekvence genotypů MDR1jsme určili u 189 zdravých dobrovolníků a CYP2C8 u 161 zdravých osob. Do sledování jsme dále zařadili 63 pacientů užívajících amiodaron déle než dva měsíce. Jejich léčbu jsme posuzovali ze záznamů lékařské dokumentace, s využitím standardních biochemických a hematologických vyšetření a záznamů EKG. Koncentrace amiodaronu a jeho metabolitu N-...

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