GEO DataSets

(Submitter supplied) Study of changes in DNA Methylation in monozygotic Rheumatoid Arthritis discordant twins and ACPA+/- discordant twins

Organism:

Homo sapiens

Type:

Methylation profiling by genome tiling array

Platform:

GPL20873

24 Samples

Download data: XYS

(Submitter supplied) Study of cell type specific DNA Methylation profiles for 4 cell types.

Organism:

Homo sapiens

Type:

Methylation profiling by genome tiling array

Platform:

GPL20873

18 Samples

Download data: XYS

(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) Two families with monozygotic twins discordant for schizophrenia

Organism:

Homo sapiens

Type:

Methylation profiling by genome tiling array

Platform:

GPL17148

8 Samples

Download data: GFF, PAIR

(Submitter supplied) Epigenetic profiling of birth-weight discordant twins using Illumina's 450K Human DNA methylation BeadChip

Organism:

Homo sapiens

Type:

Methylation profiling by genome tiling array

Platform:

GPL13534

312 Samples

Download data: CSV, IDAT

(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

(Submitter supplied) Objective: Systemic lupus erythematosus (SLE) has limited monozygotic (MZ) twin concordance, implying a role for other pathogenic factors than genetic variation, such as epigenetic changes. Using the disease discordant twin model, we investigated genome-wide DNA methylation changes in sorted CD4+ T-cells, monocytes, granulocytes and B-cells in twin pairs with at least one SLE-affected twin. Methods: Peripheral blood from 15 SLE twin pairs (six MZ, nine dizygotic (DZ)) was processed using gradient density centrifugation for the granulocyte fraction. more...

Organism:

Homo sapiens

Type:

Methylation profiling by genome tiling array

Platform:

GPL13534

104 Samples

Download data: CSV, IDAT

(Submitter supplied) Targeted bisulphite pyrosequencing of the major histocompatibility complex (MHC) region was performed using CATCH-Seq kits on whole blood DNA isolated from healthy controls and patients with rheumatoid arthritis. Data analysis showed 74 unique and differentially methylated loci (DMLs) in the MHC region of RA patients compared to healthy controls. Further, differentially methylated CpGs in C6orf10 gene were negatively associated with preclinical RA risk factors.

Organism:

Homo sapiens

Type:

Methylation profiling by high throughput sequencing

Platform:

GPL16791

34 Samples

Download data: XLSX

(Submitter supplied) In this study, we used Illumina Infinium HumanMethylation450 Beadchips to compare DNA methylation profiles in blood from 10 pairs of MZ twins and 8 individuals recruited at 0, 3, 6, and 9 months.

Organism:

Homo sapiens

Type:

Methylation profiling by genome tiling array

Platform:

GPL13534

60 Samples

Download data: 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) Genome wide DNA methylation profiling of adipose tissue of MZ twins discordant and concordant for BMI. The Illumina Infinium 450k Human DNA methylation Beadchip was used to obtain DNA methylation profiles across approximately 485,000 CpGs. Samples included 24 pairs discordant and 11 pairs concordant for BMI.

Organism:

Homo sapiens

Type:

Methylation profiling by genome tiling array

Platform:

GPL13534

70 Samples

Download data: TXT

(Submitter supplied) This study used buccal cells and purified blood monocytes from two different clinical cohorts involving Caucasian or African American female populations with or without arthritis. The differential DNA methylation regions (DMRs) between the control and RA populations were identified using MeDIP-seq. The DMRs (i.e., epimutations) identified in the buccal cells and monocytes were found to be distinct. The DMR associated genes were identified and many have previously been shown to be associated with arthritis. Observations indicate DMRs are cell type specific.

Organism:

Homo sapiens

Type:

Methylation profiling by high throughput sequencing

Platform:

GPL16791

74 Samples

Download data: CSV

(Submitter supplied) The genetic risk associated with rheumatoid arthritis (RA) includes genes regulating DNA methylation and many T-cells genes with a strong MHC-association, pointing to immuno-genetic mechanisms as disease triggers. We aim to identify methylation change in naive and memory CD4+T-cells and monocytes in the early stage of disease, to gain insight to disease pathology. DNA-methylation was explored using a genome wide array (DNA methylation Illumina 450K bead chip array). more...

Organism:

Homo sapiens

Type:

Methylation profiling by array

Platform:

GPL13534

46 Samples

Download data: IDAT

(Submitter supplied) We aim to investigate circulating genome-wide microRNA (miRome) profiles in Moyamoya disease (MMD)-discordant monozygotic (MZ) twins with the RNF213 founder mutation (rs112735431).A disease discordant monozygotic twin-based study design may unmask potential confounders from previously published circulating microRNA signature in MMD. Circulating genome-wide microRNA (miRNome) profiling was performed in MMD-discordant monozygotic twins, non-twin-MMD patients, and non-MMD healthy volunteers by microarray followed by qPCRvalidation, using blood samples. more...

Organism:

Homo sapiens

Type:

Non-coding RNA profiling by array

Platform:

GPL20712

21 Samples

Download data: TXT

(Submitter supplied) DNA methylation data for 479 women from 130 families including 66 monozygotic twin pairs, 66 dizygotic twin pairs and 215 sisters of twins.

Organism:

Homo sapiens

Type:

Methylation profiling by array

Platform:

GPL13534

479 Samples

Download data: TXT

(Submitter supplied) Peripheral blood from thirty-four monozygotic twin subjects from the general population (n = 17 twin pairs) was collected for epigenomic analysis via Illumina Infinium HumanMethylation450 Beadchip. All subjects were screened for DSM-IV based criteria for both current and lifetime psychiatric disorders. Out of 17 twin pairs, there were: 7 healthy twin pairs where none of the twins of a pair met criteria for any DSM-IV disorder; 6 discordant twin pairs where only one of the twins of each pair met diagnostic criteria; and 4 concordant twin pairs where both twins of a pair met clinical DSM-IV based criteria.

Organism:

Homo sapiens

Type:

Methylation profiling by array

Platform:

GPL13534

34 Samples

Download data: IDAT

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

Organism:

Homo sapiens

Type:

Expression profiling by array; Methylation profiling by array

Platforms:

GPL13534 GPL10558

48 Samples

Download data: IDAT

(Submitter supplied) Myasthenia gravis (MG) is a relatively rare autoimmune neuromuscular disorder. Monozygotic twin studies indicate that discordance rate in MG is about 70-60%, suggesting that despite identical DNA unknown factors contribute to disease development. The aim of the current study was to identify novel disease-associated genes in purified monocytes, including both genes associated with predisposition or with disease course, using the unique model of MZ twins. more...

Organism:

Homo sapiens

Type:

Methylation profiling by array

Platform:

GPL13534

23 Samples

Download data: IDAT, TXT

(Submitter supplied) Myasthenia gravis (MG) is a relatively rare autoimmune neuromuscular disorder. Monozygotic twin studies indicate that discordance rate in MG is about 70-60%, suggesting that despite identical DNA unknown factors contribute to disease development. The aim of the current study was to identify novel disease-associated genes in purified monocytes, including both genes associated with predisposition or with disease course, using the unique model of MZ twins. more...

Organism:

Homo sapiens

Type:

Expression profiling by array

Platform:

GPL10558

25 Samples

Download data: CSV, IDAT, TXT

(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:

GPL23976 GPL13534

1177 Samples

Download data: CSV, IDAT, RDAT