Browse
Submit Data
Databases
API
Help

Unknown,Transcriptomics,Genomics,Proteomics

Dataset Information

51 Views

0 Connections

0 Citations

0 Reanalyses

0 Downloads

Omics score: 0

DNA Methylation Patterns Associated with Fatigue in Primary SjÃ¶grenâs Syndrome

ABSTRACT: Genome-wide analysis of DNA methylation profiles from patients with SjÃ¶gren's syndrome with high versus low fatigue levels using the Illumina Infinium HumanMethylation450 Beadchip array. Background Chronic fatigue is a common, disabling, and poorly understood phenomenon. Recent studies indicate that epigenetic mechanisms may be involved in the expression of fatigue, a prominent feature of primary SjÃ¶grenâs syndrome (pSS). The aim of this study was to investigate whether DNA methylation profiles of whole blood are associated with fatigue in patients with pSS. Methods 48 pSS patients with high (n=24) or low (n=24) fatigue as measured by a visual analogue scale were included. Genome-wide DNA methylation was investigated using the Illumina HumanMethylation450 BeadChip array. Case-case study including SjÃ¶gren's patients with high fatigue (n=24) and patients with low fatigue levels (n=24)

ORGANISM(S): Homo sapiens

SUBMITTER: Juliana Imgenberg-Kreuz

PROVIDER: E-GEOD-75679 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

ACCESS DATA

Json Xml

Similar Datasets

DNA Methylation Patterns Associated with Fatigue in Primary Sjögren’s Syndrome

Project description:Genome-wide analysis of DNA methylation profiles from patients with Sjögren's syndrome with high versus low fatigue levels using the Illumina Infinium HumanMethylation450 Beadchip array. Background Chronic fatigue is a common, disabling, and poorly understood phenomenon. Recent studies indicate that epigenetic mechanisms may be involved in the expression of fatigue, a prominent feature of primary Sjögren’s syndrome (pSS). The aim of this study was to investigate whether DNA methylation profiles of whole blood are associated with fatigue in patients with pSS. Methods 48 pSS patients with high (n=24) or low (n=24) fatigue as measured by a visual analogue scale were included. Genome-wide DNA methylation was investigated using the Illumina HumanMethylation450 BeadChip array.

2015-12-04 | GSE75679 | GEO

A transcriptional signature of fatigue derived from patients with primary Sjögren's Syndrome

Project description:Fatigue is a debilitating condition with a significant impact on patients’ quality of life. Fatigue is frequently reported by patients suffering from primary Sjo ̈gren’s Syndrome (pSS), a chronic autoimmune condition characterised by dryness of the eyes and the mouth. However, although fatigue is common in pSS, it does not manifest in all sufferers, providing an excellent model with which to explore the potential underpinning biological mechanisms.

2015-12-31 | GSE66795 | GEO

A transcriptional signature of fatigue derived from patients with primary SjÃ¶gren's Syndrome

Project description:Fatigue is a debilitating condition with a significant impact on patientsâ quality of life. Fatigue is frequently reported by patients suffering from primary Sjo Ìgrenâs Syndrome (pSS), a chronic autoimmune condition characterised by dryness of the eyes and the mouth. However, although fatigue is common in pSS, it does not manifest in all sufferers, providing an excellent model with which to explore the potential underpinning biological mechanisms. Whole blood samples from 131 fully-phenotyped pSS patients, stratified for the presence of fatigue, collected by the UK primary Sj Ìogrenâs Syndrome Registry were used for whole genome microarray. The resulting data were analysed both on a gene by gene basis and using pre-defined groups of genes. Finally, gene set enrichment analysis (GSEA) was used as a feature selection technique for input into a support vector machine (SVM) classifier. Classification was assessed using area under curve (AUC) of receiver operator characteristic and standard error of Wilcoxon statistic, SE(W). Contributor: The UK Primary SjÃ¶grenâs syndrome registry

2015-12-31 | E-GEOD-66795 | biostudies-arrayexpress

DNA methylation modifications associated with Chronic Fatigue Syndrome

Project description:Chronic Fatigue Syndrome (CFS), also known as myalgic encephalomyelitis, is a complex multifactorial disease that is characterized by the persistent presence of fatigue and other particular symptoms for a minimum of 6 months. Symptoms fail to dissipate after sufficient rest and have major effects on the daily functioning of CFS sufferers. CFS is a multi-system disease with a heterogeneous patient population showing a wide variety of functional disabilities and its biological basis remains poorly understood. Stable alterations in gene function in the immune system have been reported in several studies of CFS. Epigenetic modifications have been implicated in long-term effects on gene function, however, to our knowledge, genome-wide epigenetic modifications associated with CFS have not been explored. We examined the DNA methylome in peripheral blood mononuclear cells isolated from CFS patients and healthy controls using the Illumina HumanMethylation450 BeadChip array, controlling for invariant probes and probes overlapping polymorphic sequences. Genomic DNA from 24 peripheral blood mononuclear cells (PBMC) samples (12 CFS, 12 controls) were bisulfite-converted and hybridised to the Illumina Infinium HumanMethylation450 BeadChip. GenomeStudio files were generated and the data was analyzed using the Illumina Methylation Analyzer R package.

2014-08-12 | E-GEOD-59489 | biostudies-arrayexpress

Epigenetic Signatures of Salivary Gland Inflammation in Sjögren's Syndrome.

Project description:Genome wide DNA methylation profiling of human labial salivary gland (LSG) biopsy samples obtained from 28 female members of the Sjögren's International Collaborative Clinical Alliance (SICCA) Registry. The Illumina HumanMethylation450 BeadChip platform was used to obtain DNA methylation profiles across more than 450,000 highly informative CpG sites. Samples included 15 non-case glands, and 13 glands from patients with Sjögren's Syndrome.

2018-02-02 | GSE110007 | GEO

Genome-wide DNA methylation patterns in monocyte from patients with primary Sjögren’s syndrome

Project description:To reveal the role of DNA methylation in peripheral monocytes (Mo) of primary Sjögren’s syndrome (pSS) patients, monocyte DNAs from 11 pSS patients and 5 matched controls were analyzed by methylation microarray. In total, we identified 1977 hypomethylated and 842 hypermethylated differentially methylated positions (DMPs) in Mo from pSS patients compared to healthy controls.

2021-06-16 | GSE146116 | GEO

CpG island methylation profile in non-invasive oral rinse samples is predictive of oral and pharyngeal carcinoma

Project description:Epigenome-wide association study (EWAS) of oral rinse samples from a case-control study of 154 cases and 72 controls. The Illumina Infinium HumanMethylation450 Beadchip was used to obtain DNA methylation profiles across approximately 450,000 CpGs in oral rinse samples.

2016-07-13 | GSE70977 | GEO

Differential DNA methylation in Rheumatoid arthritis

Project description:Genome-wide DNA methylation level was studied to determine whether Rheumatoid arthritis patients (cases) has methylation differences comparing to normal controls in PBLs. We used Illumina HumanMethylation450 BeadChip array to determine the genome-wide DNA methylation difference in PBLs from Rheumatoid arthritis patients (cases) and normal controls Bisulphite converted DNA from the Rheumatoid arthritis patients (cases) and normal controls were hybridized to the Illumina Illumina HumanMethylation450 BeadChip arrays

2013-01-21 | E-GEOD-42861 | biostudies-arrayexpress

DNA methylation data from primary neuroblastoma tumors

Project description:Genome wide DNA methylation profiling of primary neuroblastomas. The Illumina 450k methylation array was used to obtain DNA methylation profiles across approximately 485,000 CpGs in 105 neuroblastomas. Tumors were derived from 40 low-risk, 9 intermediate-risk and 56 high-risk patients. Bisulphite converted DNA from the 105 samples were hybridised to the llumina HumanMethylation450 BeadChip

2016-09-08 | E-GEOD-73515 | biostudies-arrayexpress

DNA methylation modifications associated with Chronic Fatigue Syndrome

2014-08-12 | GSE59489 | GEO