Browse
Submit Data
Databases
API
Help

Dataset Information

0 Views

0 Connections

0 Citations

0 Reanalyses

0 Downloads

Omics score: 0

Genome‑wide analysis of sex‑specifc diferences in the mother–child PELAGIE cohort exposed to organophosphate metabolites

ABSTRACT: In this project exposuere to DiethylPhosphate (DE) metabolites has been monitored in the usine of pregnant women of the French mother-child cohort PELAGIE. We performed ChIPs against H3K4me3 from male or female newborns' placenta in order to identify whether exposure to DE can affect their epigenetic landscape. Representing samples from each group were selected for genome-wide ChIP-seq analysis. Exposure and epigenetic data are compared and associated with potential effects on developmental processes.

ORGANISM(S): Homo sapiens

PROVIDER: GSE209943 | GEO | 2022/11/10

REPOSITORIES: GEO

ACCESS DATA

Json Xml

Similar Datasets

Epigenetic analysis of psychosocial stress among mother-newborn dyads in the Democratic Republic of Congo (EAA)

Project description:Prenatal maternal stress has a negative impact on child health but the mechanisms through which maternal stress affects child health are unclear. Epigenetic variation, such as DNA methylation, is a likely mechanistic candidate as DNA methylation is sensitive to environmental insults and can regulate long-term changes in gene expression. We recruited mother-newborn dyads in the Democratic Republic of Congo to investigate the effects of maternal stress on DNA methylation in mothers and newborns. We used four measures of maternal stress to capture a range of stressful experiences: general trauma, sexual trauma, war trauma, and chronic stress. We identified differentially methylated positions (DMPs) associated with general trauma, sexual trauma, and war trauma in both mothers and newborns. No DMPs were associated with chronic stress. Sexual trauma was positively associated with epigenetic age acceleration across several epigenetic clocks in mothers. General trauma and war trauma were positively associated with newborn epigenetic age acceleration using the extrinsic epigenetic age clock. We tested the top DMPs for enrichment of DNase I hypersensitive sites (DHS) and found no enrichment in mothers. In newborns, top DMPs associated with war trauma were enriched for DHS in embryonic and fetal cell types. Finally, one of the top DMPs associated with war trauma in newborns also predicted birthweight, completing the cycle from maternal stress to DNA methylation to newborn health outcome. Our results indicate that maternal stress is associated with site-specific changes in DNAm and epigenetic age acceleration in both mothers and newborns.

2023-06-08 | GSE224363 | GEO

Epigenetic analysis of psychosocial stress among mother-newborn dyads in the Democratic Republic of Congo (EWA reanalysis)

2023-06-08 | GSE224364 | GEO

Differential exposure to organophosphate flame retardants in mother-child pairs.

Project description: Not available

| S-EPMC6460923 | biostudies-literature

Maternal influences on the transmission of leukocyte gene expression profiles in population samples (mother and child)

2011-01-01 | GSE21342 | GEO

Newborn and child-like molecular signatures in older adults stem from TCR shifts across human lifespan

Project description:CD8+ T-cells provide robust anti-viral immunity, yet how epitope-specific T-cells evolve across the human lifespan is unknown. We defined CD8+ T-cell immunity directed at the prominent influenza epitope, HLA-A*02:01-M158-66 (A2/M158) across four age groups (newborns, children, adults and elderly) ex vivo at phenotypic, single cell sequence (transcriptomic), clonal and functional levels. We identified a linear differentiation trajectory from newborns to children then adults, followed by divergence and a clonal reset in older adults. Gene profiles in older adults closely resembled those observed in newborns and children, despite being clonally-different. However, only child- and adult-derived A2/M158+CD8+ T-cells had the potential to differentiate into highly cytotoxic epitope-specific CD8+ T-cells, which was linked to highly functional public TCRab-signatures. Suboptimal TCRab-signatures detected in older adults led to poorer proliferation, polyfunctionality, avidity and recognition of peptide mutants, although displayed no signs of exhaustion. Our study suggests that priming T-cells at different stages of life might greatly affect CD8+ T-cell responses towards viral infections.

2023-08-16 | GSE237817 | GEO

Maternal influences on the transmission of leukocyte gene expression profiles in population samples (mother and child)

Project description:This study contrasts the expression profiles of peripheral blood leukocytes from third trimester pregnant mothers, with cord blood leukocytes from their newborn children. It is a companion to (GSE21311). After normalization for RNA integrity, major principal components of the variation were found to distinguish individuals. Transmission of gene expression profiles from mother to child was documented, along with differences between gestational diabetic, obese, and normal weight mothers and their children. 56 individulas (Brisbane, Australia) were sampled for the mother-newborn study, under informed consent. 19 mothers sample were collected in the last month of pregnancy (between 30th and 36th week of pregnancy) and 37 cord blood samples were obtained at birth from newborn babies. Mothers having BMI values over 30 before pregnancy were classified as obese. From the 37 newborn babies, 10 were born to obese mothers, 8 to gestational diabetic mothers (with a wide range of body mass indices), and 19 to normal-weight mothers. There were 16 mother-newborn pairs in the dataset. RNA from each was hybridized to an Illumina HT12 array.

2011-01-01 | E-GEOD-21342 | biostudies-arrayexpress

Organophosphate Insecticide Metabolites in Prenatal and Childhood Urine Samples and Intelligence Scores at 6 Years of Age: Results from the Mother-Child PELAGIE Cohort (France).

Project description: Not available

| S-EPMC4858392 | biostudies-literature

Peripheral blood transcriptome profiles in Nepali child soldiers and civilians.

Project description:Analysis of transcript abundance estimates as a function of child soldier status, PTSD symptoms, and psychological resilience. Gene expression profiling was conducted on dried blood spot (DBS) samples collected from community dwelling adolescents and young adults in Nepal. Approximatley half of the sample were former child soldiers in the Nepal People's War and the other half were demographically similiar civilian non-combatants. In addition to basic demographic characteristics (age, sex, ethnic minority status, social caste status, education level), participants were also assessed on syptoms of post-traumatic stress (PTS, assessed by a culturally adapted version of The Child PTSD Symptom Scale; Kohrt BA, et al. (2011) Validation of cross-cultural child mental health and psychosocial research instruments: adapting the Depression Self-Rating Scale and Child PTSD Symptom Scale in Nepal. BMC Psychiatry 11(1):e127, with higher values indicating greater PTSD symptoms) and psychological resilience (assessed by a culturally adapted version of the Resilience Scale; Wagnild GM & Young HM (1993) Development and psychometric evaluation of the Resilience Scale. Journal of Nursing Measurement, with higher values indicating greater resilience). Dichotomous variables were coded 0=no/absent and 1=yes/present. Valid gene expression data are available for 254 samples.

2016-07-27 | E-GEOD-77164 | biostudies-arrayexpress

Peripheral blood transcriptome profiles in Nepali child soldiers and civilians.

Project description:Analysis of transcript abundance estimates as a function of child soldier status, PTSD symptoms, and psychological resilience.

2016-07-27 | GSE77164 | GEO

De novo contiguous deletion of F9 and SOX3 genes on the X chromosome in a child with Haemophilia B and partial hypopituitarism

Project description:Case report of a child with Haemophilia B (factor IX deficiency), partial hypopituitarism, subtle dysmorphism and mild developmental delay, where a 2.31Mb de novo deletion of Xq27.1-q27.2 was identified on array CGH investigations (using a sample from a healthy, annoymous donor as control). This contiguous deletion includes the genes F9 and SOX3 and therefore provides a cause for this patient's abnormal phenotype.

2014-12-31 | E-MEXP-3782 | biostudies-arrayexpress

OmicsDI is part of the ELIXIR infrastructure

OmicsDI is an Elixir interoperability service. Learn more ›

OmicsDI Databases

PRIDE
PeptideAtlas
MassIVE
JPOST Repository
Physiome Model Repository

EGA
EVA
ENA
LINCS
PAXDB
Cell Collective

MetaboLights
Metabolomics Workbench
MetabolomeExpress
GNPS
BioModels
FAIRDOMHub

ArrayExpress
dbGaP
ExpressionAtlas
GEO
NODE

Information

Databases
Help
API
Contact us
Code on GitHub
Terms of use
Submit Data