background: transcriptional silencing of tumor suppressor genes and tumor related genes like gstp1 by methylation of promotor region cpg island is believed to be an important mechanism in tumorigenesis. the gstp1 gene encodes the enzyme glutathione s-transferase pi which defends the cells against oxidative damage and electrophilic carcinogens. methods: to gain insight into the role of epigeneti...

background apo-lipoprotein e (apoe) and carnitine palmitoyltransferase1-a (cpt1-a) genes are well known to be involved in the pathophysiology of psychiatric disorders such as schizophrenia but regarding their cpg island methylation status data is sparse. objectives the aims of the current study were to highlight the effect of the promoter “hypermethylation” in the development of scz. patients a...

objective: a recent field of research in epigenetics is dna methylation which involves the cpg island in the genome that subsequently controls transcription and translation of targeted genes. in the hepatitis b virus (hbv) genome, there are three cpg islands which tend to be methylated. the aim of the current study is to determine the methylation pattern of the hbv x gene in chronically infecte...

congenital factor xiii deficiency is a very rare bleeding disorder, but because of the high rate of consanguineous marriages, it is common in sistan and baluchestan province of iran. the discovery of promoter hypermethylation of numerous mirnas in human diseases has demonstrated an epigenetic mechanism for aberrant mirna expression. the present study has analyzed methylation and expression stat...

DNA methylation as epigenetic mark plays a key role in normal differential and developmental processes as well as in dynamic gene regulation at the genomic level. To assess DNA methylation pattern in different developmental stages of Aeluropus littoralis, methylation sensitive amplified polymorphism (MSAP) was used. Methylation and demethylation status at the CCGG recognition site were...

dna methylation plays an important role in carcinogenesis through epigenetic silencing of tumor suppressor genes. aberrant methylation usually results from changes in the activity of dna methyltransferases (dnmts). some studies show that the overexpression of the dnmts may lead to aberrant methylation of tumor suppressor genes. also the overexpression of dnmts may be related to methylation stat...

Cyclometalated ruthenium allow the effective and selective N-methylation of anilines under mild conditions.

BACKGROUND We have previously established aberrant DNA methylation of vimentin exon-1 (VIM methylation) as a common epigenetic event in colon cancer and as a biomarker for detecting colon neoplasia. We now examine vimentin methylation in neoplasia of the upper gastrointestinal tract. METHODS Using a quantitative real-time methylation-specific PCR assay, we tested for vimentin methylation in a...

Aberrant DNA methylation has been reported as an important phenotype in acute myeloid leukemia. However the clinical significance of methylation changes has not been clear yet. In this study methylation Specific Melting Curve Analysis (MS-MCA) and real time PCR was used to assess the CDKN2B promoter hyper-methylation and gene expression in 59 Iranian acute myeloid leukemia (AML) patients. The i...