Results 11 to 20 of about 70,734 (243)

Hypermethylation of dihydrofolate reductase promoter increases the risk of hypertension in Chinese

open access: yesJournal of Research in Medical Sciences, 2020
Background: DNA methylation was considered to play an important role in hypertension. However, the direct association between dihydrofolate reductase (DHFR) promoter methylation and hypertension remains unclear.
Guodong Xu   +10 more
doaj   +1 more source

Genetic and Epigenetic Changes of Components Affecting the WNT Pathway in Colorectal Carcinomas Stratified by Microsatellite Instability

open access: yesNeoplasia: An International Journal for Oncology Research, 2005
An unselected series of 310 colorectal carcinomas, stratified according to microsatellite instability (MSI) and DNA ploidy, was examined for mutations and/or promoter hypermethylation of five components of the WNT signaling cascade [APC, CTNNB1 (encoding
Lin Thorstensen   +6 more
doaj   +1 more source

Diagnostic Value of RASSF1A gene DNA methylation in Differential Diagnosis of Thyroid Benign Tumors and Papillary Thyroid Carcinoma [PDF]

open access: yesJournal of Epigenetics, 2019
Thyroid cancer is the most common endocrine malignancy that its incidence hascontinuously increased in recent decades all over the world. Thyroid cancer in Iranis the seventh most common cancer in women and the 14th in men and the 11th mostcommon cancer ...
Gholamabbas Dinarvand   +2 more
doaj   +1 more source

Dissecting DNA hypermethylation in cancer [PDF]

open access: yesFEBS Letters, 2010
There is compelling evidence to support the importance of DNA methylation alterations in cancer development. Both losses and gains of DNA methylation are observed, thought to contribute pathophysiologically by inactivating tumor suppressor genes, inducing chromosomal instability and ectopically activating gene expression. Lesser known are the causes of
Estécio, Marcos R.H.   +1 more
openaire   +2 more sources

Frequent Hypermethylation of RASSF1A, TSLC1, High Viral Load of Epstein-Barr Virus DNA in Nasopharyngeal Carcinoma, Matched Tumor-Adjacent Tissues

open access: yesNeoplasia: An International Journal for Oncology Research, 2005
We examined the promoter hypermethylation of tumorsuppressor genes RASSF1A, TSLC1, quantitated EBV DNA load in nasopharyngeal carcinoma (NPC) tissues (T tissues), matched tumor-adjacent tissues outside 0.5 cm (P tissues), outside 1.0 cm (Z tissues) to ...
Liang Zhou   +7 more
doaj   +1 more source

Helicobacter pylori Subdues Cytokine Signaling to Alter Mucosal Inflammation via Hypermethylation of Suppressor of Cytokine Signaling 1 Gene During Gastric Carcinogenesis

open access: yesFrontiers in Oncology, 2021
Helicobacter pylori infection has been associated with the onset of gastric mucosal inflammation and is known to perturb the balance between T-regulatory (Treg) and T-helper 17 (Th17) cells which causes a spurt of interleukin 17 (IL17) and transforming ...
Iqra Jan   +10 more
doaj   +1 more source

DNA Methylation of Tumor Suppressive miRNAs in Non-Hodgkin’s Lymphomas

open access: yesFrontiers in Genetics, 2012
In addition to histone modification, DNA methylation is the other form of epigenetic alteration leading to heritable phenotypic changes of cells with functional consequences.
Rita Lok Hay Yim   +4 more
doaj   +1 more source

The promoter hypermethylation of SULT2B1 accelerates esophagus tumorigenesis via downregulated PER1

open access: yesThoracic Cancer, 2021
Background Esophageal cancer is currently the eighth most common tumor in the world and a leading cause of cancer death. SULT2B1 plays crucial roles in tumorigenesis. The purpose of this study is to explore the role of SULT2B1 in esophageal squamous cell
Zhuo Li   +8 more
doaj   +1 more source

Reelin promoter hypermethylation in schizophrenia [PDF]

open access: yesProceedings of the National Academy of Sciences, 2005
Reelin mRNA and protein levels are reduced by ≈50% in various cortical structures of postmortem brain from patients diagnosed with schizophrenia or bipolar illness with psychosis. In addition, the mRNA encoding the methylating enzyme, DNA methyltransferase 1, is up-regulated in the same neurons that coexpress reelin and glutamic acid decarboxylase 67 ...
Dennis R, Grayson   +6 more
openaire   +2 more sources

2-HG Inhibits Necroptosis by Stimulating DNMT1-Dependent Hypermethylation of the RIP3 Promoter

open access: yesCell Reports, 2017
2-hydroxyglutarate-(2-HG)-mediated inhibition of TET2 activity influences DNA hypermethylation in cells harboring mutations of isocitrate dehydrogenases 1 and 2 (IDH1/2).
Zhentao Yang   +11 more
doaj   +1 more source

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