Homo sapiens
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ABSTRACT:
PROVIDER: PRJNA267550 | ENA |
REPOSITORIES: ENA
Similar Datasets
Project description:Genome wide DNA methylation profiling of whole blood samples from 3 subjects affected by Werner Syndrome and 3 age- and sex- matched controls. The Infinium MethylationEPIC BeadChip was used to obtain DNA methylation profiles across approximately 850,000 CpGs.
2017-08-17 | GSE100825 | GEO
Project description:Human DNA methylation Beadchip v1.2 was used to obtain n=113 Illumina DNA methylation array from whole blood samples. The main goal of the study was to measure the epigenetic age (also known as DNA methylation age) of subjects with a severe developmental disorder (known as syndrome X) and controls. To measure DNA methylation age, we used the epigenetic clock software described in Horvath S (n=2013) DNA methylation age of human tissues and cell types. Genome Biology.2013, 14:R115. DOI: 10.1186/10.1186/gb-2013-14-10-r115 PMID: 24138928. The data set contains 5 affected female subjects who exhibit a pure form of syndrome X. Further, the study includes two syndrome X-like subjects who also have Down syndrome and Ring- X Turner syndrome, respectively. For the diseased subjects, we collected several family members (parents and possibly siblings). We also collected several control families who do not have an affected child. Apart from family data, we also analyzed 62 blood samples from healthy controls.
2015-05-28 | E-GEOD-64495 | biostudies-arrayexpress
Project description:Genome wide DNA methylation profiles of various human brain regions (cerebellum, occipital lobe, etc). The Illumina Infinium 450k Human DNA methylation Beadchip v1.2 was used to obtain DNA methylation profiles across approximately 480,000 CpGs. The dataset includes 130 samples. Multiple brain regions were assessed per subject. The goal was to evaluate the effect of HIV infection on DNA methylation levels. Genome wide DNA methylation profiles of various brain regions from HIV positive and negative subjects. The Illumina Infinium 450k Human DNA methylation Beadchip v1.2 was used to obtain DNA methylation profiles across approximately 480,000 CpGs. Dataset included 130 samples: 99 samples from HIV+ subjects and 31 samples from HIV- subjects. The Illumina Infinium450 platform was applied to various brain regions from HIV+ and HIV- subjects. We evaluated 130 brain samples from 84 different subjects. Specifically, we considered cerebellum (20 HIV+ samples and 4 controls), frontal lobe (2 cases, 4 controls), hippocampus (4 controls), medial frontal cortex (18 cases), occipital cortex (59 cases, 13 controls), temporal cortex (4 controls). In total, there were 99 samples from HIV+ subjects and 31 samples from HIV- controls of similar ages. The subjects were recruited from the National Neurological AIDS Bank study or Multicenter AIDS Cohort study in Los Angeles. Informed consent and all study procedures were approved by the UCLA Medical IRB. DNAm data from HIV+ cases and HIV- controls were generated at the same time and randomized across plates and chips. HIV viral load information was available for blood (measured at the last blood draw) and for cerebrospinal fluid (CSF).
2015-06-09 | E-GEOD-59457 | biostudies-arrayexpress
Project description:Genome wide DNA methylation profiles of various human brain regions (cerebellum, occipital lobe, etc). The Illumina Infinium 450k Human DNA methylation Beadchip v1.2 was used to obtain DNA methylation profiles across approximately 480,000 CpGs. The dataset includes 130 samples. Multiple brain regions were assessed per subject. The goal was to evaluate the effect of HIV infection on DNA methylation levels. Genome wide DNA methylation profiles of various brain regions from HIV positive and negative subjects. The Illumina Infinium 450k Human DNA methylation Beadchip v1.2 was used to obtain DNA methylation profiles across approximately 480,000 CpGs. Dataset included 130 samples: 99 samples from HIV+ subjects and 31 samples from HIV- subjects.
2015-06-09 | GSE59457 | GEO
Project description:Genome wide DNA methylation profiling of obstructive sleep apnea (OSA) patients and healthy subjects. The Illumina Infinium 27k Human DNA methylation Beadchip v1.2 was used to obtain DNA methylation profiles across approximately 27,000 CpGs in peripheral blood mononuclear cell samples. Samples included 8 normal subjects and 16 patients with obstructive sleep apnea syndrome.
2015-12-31 | GSE61463 | GEO
Project description:Genome-wide DNA methylation profiling of individuals consuming alcohol and controls in LC samples. Individuals consuming alcohol were profiled at time of intake (T1) into treatment facility and four weeks into treatment (T2). Controls were profiled once. The Illumina Infinium 450k Human DNA Methylation BeadChip v1.0 was used to obtain DNA methylation profiles across 485,577 CpGs in LC samples. Samples included 33 case subjects at T1, 26 case subjects at T2 and 33 controls.
2014-09-24 | GSE57853 | GEO
Project description:Down syndrome (DS) is the result of trisomy chromosome 21 but the mechanisms by which the genotype leads to the characteristic disease phenotype are unclear. We performed a microarray study using human adult brain tissue (dorsolateral prefrontal cortex) from DS subjects and healthy controls to characterise for the first time the human adult Down syndrome brain Experiment Overall Design: RNA extracted from human postmortem brain tissue from adult subjects with Down syndrome and healthy controls was hybridised to Affymetrix HG-U133A GeneChips to identify differentially expressed genes in the disease state.
2009-04-23 | E-GEOD-5390 | biostudies-arrayexpress
Project description:DNA methylation profiles of human brain tissue samples
| PRJNA271160 | ENA
Project description:Human DNA methylation Beadchip v1.2 was used to obtain DNA methylation profiles across approximately 486,000 CpGs. Dataset included 71 samples from multiple brain regions (cerebellum, temporal/occipital/frontal cortex). The goal was to evalute the effect of trisomy 21 on DNA methylation levels and epigenetic age. Explanation of characteristics variables in supplementary file Explanation_of_characteristic_variables2.docx Bisulphite converted DNA from the 71 samples were hybridised to the Illumina Infinium 450k Human Methylation Beadchip. Trisomy 21 (Down syndrome status) was related to CpGs.
2015-03-02 | E-GEOD-63347 | biostudies-arrayexpress
Project description:Down syndrome is characterized by a wide spectrum of clinical signs, which include cognitive and endocrine disorders and haematological abnormalities. Although it is well established that the causative defect of Down syndrome is the trisomy of chromosome 21, the molecular bases of Down syndrome phenotype are still largely unknown. We used the Infinium HumanMethylation450 BeadChip to investigate DNA methylation patterns in whole blood from 29 subjects affected by Down syndrome (DS), using their healthy relatives as controls (mothers and unaffected siblings). This family-based model allowed us to monitor possible confounding effects on DNA methylation patterns deriving from genetic and environmental (lifestyle) factors. The identified epigenetic signature of Down syndrome includes differentially methylated regions that, although enriched on chromosome 21, interest most of the other chromosomes and can be functionally linked to the developmental and haematological defects characteristic of the disease.
2015-03-03 | GSE52588 | GEO