GEO DataSets

(Submitter supplied) Genetic and environmental risk factors contribute to periodontal disease, but the underlying susceptibility pathways are not fully understood. Epigenetic mechanisms are malleable regulators of gene function that can change in response to genetic and environmental stimuli, thereby providing a potential mechanism mediating risk effects in periodontitis. The aim of this study is to identify epigenetic changes across tissues that are associated with periodontal disease.

Organism:

Homo sapiens

Type:

Methylation profiling by genome tiling array

Platform:

GPL13534

480 Samples

Download data: IDAT, TXT

(Submitter supplied) The Illumina Infinium 27k Human DNA methylation Beadchip v1.2 was used to obtain DNA methylation profiles across approximately 27,000 CpGs in whole blood samples from 172 normal female twins. See Bell, Tsai et al. Plos Genet. 2012;8(4):e1002629.

Organism:

Homo sapiens

Type:

Methylation profiling by array

Platform:

GPL8490

172 Samples

Download data: TXT

(Submitter supplied) DNA methylation levels in whole blood measured over a ten years follow up in an elderly birth cohort of 86 samples

Organism:

Homo sapiens

Type:

Methylation profiling by genome tiling array

Platform:

GPL13534

180 Samples

Download data: IDAT, TXT

(Submitter supplied) There is increasing evidence that interindividual epigenetic variation is an etiological factor in common human diseases. Such epigenetic variation could be genetic or non-genetic in origin, and epigenome-wide association studies (EWASs) are underway for a wide variety of diseases/phenotypes. However, performing an EWAS is associated with a range of issues not typically encountered in genome-wide association studies (GWASs), such as the tissue to be analyzed. more...

Organism:

Homo sapiens

Type:

Methylation profiling by genome tiling array

Platform:

GPL13534

22 Samples

Download data: TXT

(Submitter supplied) There is increasing evidence that interindividual epigenetic variation is an etiological factor in common human diseases. Such epigenetic variation could be genetic or non-genetic in origin, and epigenome-wide association studies (EWASs) are underway for a wide variety of diseases/phenotypes. However, performing an EWAS is associated with a range of issues not typically encountered in genome-wide association studies (GWASs), such as the tissue to be analyzed. more...

Organism:

Homo sapiens

Type:

Methylation profiling by high throughput sequencing

Platform:

GPL11154

28 Samples

Download data: TXT

(Submitter supplied) This SuperSeries is composed of the SubSeries listed below.

Organism:

Homo sapiens

Type:

Methylation profiling by genome tiling array; Methylation profiling by high throughput sequencing

Platform:

GPL13534

22 Samples

Download data

(Submitter supplied) Healthy ex vivo biopsies from masticatory mucosa from 17 current and 21 never smokers were analysed using whole transcriptome RNA sequencing (16 mio reads/sample), showing significantly increased expression of CYP1B1 in smokers compared to non-smokers (p = 2.2 × 10−14), together with 13 significantly upregulated transcripts. Six transcripts were significantly downregulated.

Organism:

Homo sapiens

Type:

Expression profiling by high throughput sequencing

Platform:

GPL21290

38 Samples

Download data: TXT

(Submitter supplied) Background and Purpose The neurological course after stroke is highly variable and is determined by demographic, clinical, and genetic factors. However, other heritable factors such as epigenetic DNA methylation could play a role in neurological changes after stroke. Methods We performed a three-stage epigenome-wide association study (EWAS) to evaluate DNA methylation associated with the difference between the National Institutes of Health Stroke Scale (NIHSS) at baseline and at discharge (ΔNIHSS) in ischemic stroke patients. more...

Organism:

Homo sapiens

Type:

Methylation profiling by array

Platforms:

GPL13534 GPL29753

121 Samples

Download data: IDAT, TXT

(Submitter supplied) DNA methylation is an epigenetic event whose pattern is altered frequently in a wide variety of human diseases. Smoking affects DNA methylation possibly leading to abnormal expression of a broad spectrum of genes which in turn may result to the various side effects and diseases associated with smoking. The long term effects of smoking have been widely studied but the mechanism(s) by which those effects may be reversible by smoking cessation are not clearly understood. more...

Organism:

Homo sapiens

Type:

Methylation profiling by array

Platform:

GPL13534

464 Samples

Download data: TXT

(Submitter supplied) Genome wide DNA methylation profiling with the HumanMethylation450 BeadChip (450k) of peripheral blood samples of 46 adult female monozygotic twin-pairs obtained at the same time point. Samples included 41 healthy females (not diagnosed with cancer to date) paired with their co-twin diagnosed with cancer within a 5 year window around the time of sampling as well as 5 extra pairs with a co-twin diagnosed with cancer within 11 to 5 years prior to blood sampling.

Organism:

Homo sapiens

Type:

Methylation profiling by array

Platform:

GPL13534

92 Samples

Download data: TXT

(Submitter supplied) Comparison between groups of monozygotic (MZ) and dizygotic (DZ) twins enables an estimation of the relative contribution of genetic, shared and non-shared environmental factors to phenotypic variability. Using DNA methylation profiling of ~20,000 CpG sites as a phenotype, we have examined discordance levels in multiple tissues in neonatal twins. MZ twins exhibit a wide range of within-pair differences at birth, but show discordance levels generally lower than DZ pairs. more...

Organism:

Homo sapiens

Type:

Methylation profiling by array

Platform:

GPL8490

123 Samples

Download data: TXT

(Submitter supplied) Abstract Background: Schizophrenia is a severe, highly heritable, neuropsychiatric disorder characterized by episodic psychosis and altered cognitive function. Despite success in identifying genetic variants associated with schizophrenia, there remains uncertainty about the causal genes involved in disease pathogenesis and how their function is regulated. Insights into the functional complexity of the genome have focussed attention on the role of non-sequence-based genomic variation in health and disease. more...

Organism:

Homo sapiens

Type:

Methylation profiling by genome tiling array

Platform:

GPL13534

847 Samples

Download data: CSV

(Submitter supplied) Background: Schizophrenia is a severe, highly heritable, neuropsychiatric disorder characterized by episodic psychosis and altered cognitive function. Despite success in identifying genetic variants associated with schizophrenia, there remains uncertainty about the causal genes involved in disease pathogenesis and how their function is regulated. Insights into the functional complexity of the genome have focussed attention on the role of non-sequence-based genomic variation in health and disease. more...

Organism:

Homo sapiens

Type:

Methylation profiling by genome tiling array

Platform:

GPL13534

675 Samples

Download data: CSV

(Submitter supplied) Genome wide DNA methylation profiling of fresh frozen, histologically normal-appearing breast tissue from the Normal Breast Study (NBS). The Illumina HumanMethylation450 BeadChip was used to obtain DNA methylation profiles for 90 samples, including “current”, “former” and never users of HRT.

Organism:

Homo sapiens

Type:

Methylation profiling by array

Platform:

GPL13534

85 Samples

Download data: CSV

(Submitter supplied) Genome wide DNA methylation profiling of Crohn's disease, ulcerative colitis, and normal peripheral blood samples. The Illumina Infinium HumanMethylation450 BeadChip v1.1 was used to obtain DNA methylation profiles across 482,421 CpGs in peripheral blood samples. Samples came from 17 Crohn's disease affected, 11 ulcerative colitis affected, and 20 normal individuals. Within these samples were three twin sets discordant for Crohn's disease and three twin sets discordant for ulcerative colitis.

Organism:

Homo sapiens

Type:

Methylation profiling by genome tiling array

Platform:

GPL13534

48 Samples

Download data: TXT

(Submitter supplied) Background Chronological aging-associated changes in the human DNA methylome are studied by multiple epigenome-wide association studies (EWAS); however, the aging-associated DNAmet changes identified among different age groups and tissues vary and especially the rates of aging-associated alterations in the epigenome during adulthood remain unclear. Here, we further explore and characterize CpG-sites where DNA methylation levels alter at a constant rate during adulthood and are also independent of blood cell type heterogeneity. more...

Organism:

Homo sapiens

Type:

Methylation profiling by array

Platform:

GPL13534

184 Samples

Download data: TXT

(Submitter supplied) We developed a comprehensive analysis pipeline to conduct Epigenome-wide Association Studies (EWAS) using the Illumina Infinium HumanMethylation450 BeadChip, based on data from 2,664 individuals, and 36 samples measured in duplicate. We propose new approaches to quality control, data normalisation and batch correction through control-probe adjustment, and demonstrate that these improve data-quality. more...

Organism:

Homo sapiens

Type:

Methylation profiling by array

Platform:

GPL13534

2711 Samples

Download data: TXT

(Submitter supplied) The Illumina Infinium 450k Human DNA methylation Beadchip was used to obtain DNA methylation profiles across approximately 480,000 CpGs in a total of 96 samples, including 8 hyperplasias, 33 endometrial cancers and 53 metastases, as well as 2 cell-lines.

Organism:

Homo sapiens

Type:

Methylation profiling by genome tiling array

Platform:

GPL16304

96 Samples

Download data: IDAT

(Submitter supplied) Genome-wide patterns of DNA methylation were quantified using the Illumina Infinium EPIC array (“EPIC array”) in DNA samples isolated from buccal swabs collected at ages 5, 10 and 18 and whole blood samples collected at age 18 from 118 Monozygotic twin pairs from the Environmental Risk (E-Risk) Longitudinal Twin Study. Comparison of DNA methylation profiles of 233 age 18 blood samples with data on EPIC and Illumina 450K methylation arrays.

Organism:

Homo sapiens

Type:

Methylation profiling by array

Platforms:

GPL13534 GPL23976

1177 Samples

Download data: CSV, IDAT, RDAT

(Submitter supplied) This study performed a genome-wide methylation analysis of positively isolated CD19+ B cells in rheumatoid arthritis (RA) and healthy controls. The Ilumina HumanMethylation450 BeadChip was uset to obtain the methylation levels at >400,000 CpG sites. Samples include 49 RA patients and 73 healthy controls.

Organism:

Homo sapiens

Type:

Methylation profiling by array

Platform:

GPL13534

122 Samples

Download data: IDAT