GEO DataSets

(Submitter supplied) Background: Epigenetic marks, like asthma, are heritable. They are influenced by the environment, direct the maturation of T cellslymphocytes, and have been shown to enhance the development of allergic airways disease in mice. Thus, we hypothesized that epigenetic marks are associated with allergic asthma in inner-city children. Methods: We compared methylation patterns and gene expression in inner-city children with persistent atopic asthma versus healthy controls, using DNA and RNA from peripheral blood mononuclear cells (PBMCs) from inner city children aged 6-12 years with persistent atopic asthma children and healthy controls. more...

Organism:

Homo sapiens

Type:

Methylation profiling by array

Platform:

GPL13534

194 Samples

Download data: TXT

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

Organism:

Homo sapiens

Type:

Methylation profiling by array; Expression profiling by array

Platforms:

GPL16025 GPL13534

388 Samples

Download data: PAIR

(Submitter supplied) Background: Epigenetic marks, like asthma, are heritable. They are influenced by the environment, direct the maturation of T cellslymphocytes, and have been shown to enhance the development of allergic airways disease in mice. Thus, we hypothesized that epigenetic marks are associated with allergic asthma in inner-city children. Methods: We compared methylation patterns and gene expression in inner-city children with persistent atopic asthma versus healthy controls, using DNA and RNA from peripheral blood mononuclear cells (PBMCs) from inner city children aged 6-12 years with persistent atopic asthma children and healthy controls. more...

Organism:

Homo sapiens

Type:

Expression profiling by array

Platform:

GPL16025

194 Samples

Download data: PAIR

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

Organism:

Homo sapiens

Type:

Expression profiling by array; Methylation profiling by array

Platforms:

GPL14550 GPL13534

141 Samples

Download data: IDAT, TXT

(Submitter supplied) We compared genomic DNA methylation patterns and gene expression in African American children with persistent atopic asthma versus healthy controls. We identified 119 differentially methylated regions (DMRs) and 118 differentially methylated probes (DMPs) after adjustment for age, gender, race/ethnicity, batch effects, inflation, and multiple comparisons (false discovery rate-adjusted q<0.05). Genes differentially methylated include those with established roles in asthma and atopy, components of the extracellular matrix, genes related to immunity, cell adhesion, epigenetic regulation, and airway obstruction. more...

Organism:

Homo sapiens

Type:

Expression profiling by array

Platform:

GPL14550

69 Samples

Download data: TXT

(Submitter supplied) Background: Nasal epithelia are emerging as a proxy measure of gene expression of the airway epithelium in asthma. We hypothesized that epigenetic marks regulate gene expression of the nasal epithelia and consequently may provide a novel target for allergic asthma. Methods: We compared genomic DNA methylation patterns and gene expression in African American children with persistent atopic asthma [N=36] versus healthy controls [N=36]. more...

Organism:

Homo sapiens

Type:

Methylation profiling by array

Platform:

GPL13534

72 Samples

Download data: IDAT

(Submitter supplied) DNA methylation profiling of airway epithelial cells (AECs) and peripheral blood mononuclear cells (PBMCs) from normal, atopic and asthmatic subjects. The Illumina GoldenGate Methylation Cancer Panel I was used to obtain DNA methylation profiles across approximately 1505 CpGs in AECs and PBMCs. Samples included 7 healthy, 9 atopic, 4 atopic asthmatic and 5 non-atopic asthmatic subjects. Please note that only some of the samples are matched (i.e. more...

Organism:

Homo sapiens

Type:

Methylation profiling by array

Platform:

GPL9183

41 Samples

Download data: TXT

(Submitter supplied) Obesity-associated asthma is recognized as a distinct entity with non-atopic T-helper 1 polarized systemic inflammation. DNA methylation is linked with T helper cell maturation and is associated with inflammatory patterns in asthma and obesity. However, it is unknown whether pathologic dysregulation of DNA methylation patterns occurs in obesity-associated asthma. Using HELP-tagging, we studied epigenome wide DNA methylation in peripheral blood mononuclear cells in 8 urban minority obese asthmatic pre-adolescent children and compared it to methylation in groups of 8 children with asthma alone, obesity alone and healthy controls. more...

Organism:

Homo sapiens

Type:

Methylation profiling by high throughput sequencing

Platform:

GPL9052

32 Samples

Download data: WIG

(Submitter supplied) Background The timing and mechanisms of asthma inception remain imprecisely defined. Although epigenetic mechanisms likely contribute to asthma pathogenesis, little is known about their role in asthma inception. Objective To assess whether the trajectory to asthma begins already at birth and epigenetic mechanisms, specifically DNA methylation, contribute to asthma inception. Methods We used a combination of methyl binding protein-dependent DNA capture and microarrays to survey DNA methylation in cord blood mononuclear cells (CBMC) from 36 children (18 non-asthmatic, 18 asthmatic by age 9) from the Infant Immune Study (IIS), an unselected birth cohort closely monitored for asthma for a decade. more...

Organism:

Homo sapiens

Type:

Methylation profiling by genome tiling array

Platforms:

GPL22289 GPL22288

36 Samples

Download data: PAIR, TXT

(Submitter supplied) Genome wide DNA methylation profiling of Chronic Obstructive Pulmonary Disease (COPD) patients and healthy subjects. The Illumina Infinium HumanMethylation450 BeadChip was used to obtain DNA methylation profiles across in peripheral blood mononuclear cell samples. Samples included 6 normal subjects and 12 COPD patients among which 3 of them have 2nd samples from follow-up examination.

Organism:

Homo sapiens

Type:

Methylation profiling by array

Platform:

GPL13534

21 Samples

Download data: IDAT, TXT

(Submitter supplied) Background: Mechanisms underlying the development of virus-induced asthma exacerbations remain unclear. Objective: To investigate if epigenetic mechanisms could be involved in virus-induced asthma exacerbations, we undertook DNA methylation profiling in asthmatic and healthy nasal epithelial cells (NECs) during Human Rhinovirus (HRV) infection in vitro. Methods: Global and loci-specific methylation profiles were determined via Alu element and Infinium Human Methylation 450K microarray respectively. more...

Organism:

Homo sapiens

Type:

Methylation profiling by genome tiling array

Platform:

GPL13534

18 Samples

Download data: TXT

(Submitter supplied) The objective of the study was to present a transcriptome-wide m6A methylome profile of lung tissues in mouse model of ovalbumin(OVA)-induced acute allergic asthma.

Organism:

Mus musculus

Type:

Expression profiling by high throughput sequencing; Methylation profiling by high throughput sequencing

Platform:

GPL24247

12 Samples

Download data: TXT

(Submitter supplied) Systemic lupus erythematosus (SLE) is a chronic-relapsing autoimmune disease of incompletely understood etiology. Recent evidence strongly supports an epigenetic contribution to the pathogenesis of lupus. To understand the extent and nature of dysregulated DNA methylation in lupus T cells, we performed a genome-wide DNA methylation study in CD4+ T cells from 12 lupus patients and 12 normal healthy controls. more...

Organism:

Homo sapiens

Type:

Methylation profiling by array

Platform:

GPL8490

23 Samples

Download data: TXT

(Submitter supplied) Background: Asthma is highly heterogeneous and severity evaluation is key to asthma management. DNA methylation (DNAm) contributes to asthma pathogenesis. This study aimed to identify nasal epithelial DNAm differences between severe and non-severe asthmatic children and evaluate the impact of environmental exposures. Methods: Thirty-three non-severe and 22 severe asthmatic African-American children were included in an epigenome-wide association study. more...

Organism:

Homo sapiens

Type:

Methylation profiling by array

Platform:

GPL13534

62 Samples

Download data: IDAT

(Submitter supplied) Genome wide DNA methylation profiling of human cord blood mononuclear leokocytes (CBML) from neonates exposed to histological chorioamnionitis (HCA) compared to healthy neonates. The Infinium HumanMethylationEPIC BeadChip array was used to obtain DNA methylation profiles across 866,836 CpGs in five HCA and five control samples.

Organism:

Homo sapiens

Type:

Methylation profiling by genome tiling array

Platform:

GPL21145

10 Samples

Download data: IDAT

(Submitter supplied) Rationale: DNA methylation plays a critical role in asthma development, but differences in DNA methylation associated with asthma severity, especially among adults, are less well-defined. Changes in DNA methylation are influenced by exposure to air pollution, which is a risk factor for asthma exacerbation and severity. Here, we examined how DNA methylomic patterns in adult asthmatics differ by asthma severity and exposure to different components of air pollution. more...

Organism:

Homo sapiens

Type:

Methylation profiling by array

Platform:

GPL23976

130 Samples

Download data: IDAT, TXT

(Submitter supplied) Lineage-specific methylation and transcriptomic patterns were identified in 6 primary immune cells from 24 healthy donors. We also look into the association of B cell-specific methylated sites with EBF1 ChIP-Seq binding patterns

Organism:

Homo sapiens

Type:

Methylation profiling by array

Platform:

GPL21145

167 Samples

Download data: IDAT, TXT