The CYP2A6 gene, which codes the enzyme, has known to have ahigh polymorphism. This polymorphism could decrease, increase, or eliminate enzyme activity. CYP2A6*4 , an inactive allele, decreased One of enzyme-specific substrates is nicotine. allele decrease nicotine metabolism that causes high levels in blood. In addition, it caused increasing Low-Density Lipoprotein Cholesterol (LDL-C) by expan...

objective: cyp2d6, an enzyme, metabolizes a large number of commonly prescribed drugs. variations in cyp2d6 gene encoding this enzyme have been associated with individual differences in drug metabolism rates. the purpose of our study was to identify some allelic variants of cyp2d6 gene and to detect defective cyp2d6 alleles, as part of a pharmacogenetic screening program. materials and methods:...

Eggshell quality is the main trait to assess egg quality. Marker assisted selection can be used to improve this trait. During eggshell formation, a mass of inorganic minerals is deposited. The Sodium Channel (SCNN1) gene family plays an essential role in cation transportation and SCNN1g is a member of this gene family. The objective of this study was to estimate the frequency of SCNN1g gene var...

background: xmn-1 polymorphism of y g globin gene ( hbg2 ) is a prominent quantitative trait loci (qtl) in β-thalassemia intermediate (β-ti). in current study, we evaluated frequency of xmn-1 polymorphism and its association with β-globin gene ( hbb ) alleles and hb f level in β-ti patients in sistan and balouchestan province, south-east of iran. methods: 45 β-ti patients were enrolled. hbb gen...

background: henoch-schönlein purpura (hsp) is an lga mediated small vessel systemic vasculitis disease in children. the etiology and pathogenesis of hsp disease remain unknown. however, environmental and genetic risk factors could play important roles in susceptibility to hsp disease. in this study we investigated the association of 5՛-untranslated region polymorphism (-634g/c) of vegf gene wit...

the purpose of this study was to determine whether a 45 bp insertion/deletion (i/d) polymorphism in human uncoupling protein 2 (hucp2) gene was associated with changes in several cardiovascular risk and physical fitness factors in response to combined exercise during 12 weeks in korean middle-aged women. the changes in physiological parameters after combined exercise during 12 weeks were compar...

Chloroform accumulation in the body and increase its steady-state concentrations blood of exposed people have been established to be associated with polymorphisms enzyme genes a genotype involved metabolism water disinfection byproducts (A415G EPHX1 gene, C1091T CYP2E1 zero mutations GSTT1 GSTM1 genes) (р < 0.000001). These correlate higher chloroform levels consuming chlorinated drinking wa...