Browse
Submit Data
Databases
API
Help

Dataset Information

0 Views

0 Connections

0 Citations

0 Reanalyses

0 Downloads

Omics score: 0

Age-associated changes in murine endothelial gene expression and chromatin accessibility correlate with impaired blood-brain barrier integrity and elevated risk of intracerebral hemorrhage [RRBS]

ABSTRACT: Age-associated changes in murine endothelial gene expression and chromatin accessibility correlate with impaired blood-brain barrier integrity and elevated risk of intracerebral hemorrhage [RRBS]

PROVIDER: PRJNA904757 | ENA |

REPOSITORIES: ENA

ACCESS DATA

Json Xml

Dataset's files

Source:

			Action	DRS
	SRR22395822.fastq.gz	Fastqsanger.gz
	SRR22395823.fastq.gz	Fastqsanger.gz
	SRR22395824.fastq.gz	Fastqsanger.gz
	SRR22395825.fastq.gz	Fastqsanger.gz
	SRR22395826.fastq.gz	Fastqsanger.gz

Items per page:

1 - 5 of 29

Similar Datasets

Age-associated changes in murine endothelial gene expression and chromatin accessibility correlate with impaired blood-brain barrier integrity and elevated risk of intracerebral hemorrhage [RRBS]

Project description:Intracerebral hemorrhage (ICH), a devastating form of stroke, is a leading global cause of human death and disability. The major risk factors for ICH include increasing age, hypertension and cerebral amyloid angiopathy. Despite high mortality and morbidity associated with ICH, the mechanisms leading to blood-brain barrier (BBB) dysfunction with age and development of hemorrhagic stroke is poorly understood. In the vasculature of the central nervous system, endothelial cells (ECs) constitute the core component of the BBB and provide a physical barrier due to tight junctions, adherens junctions, and basement membrane layers. In this study, we show in brains of mice that incidents of intracerebral bleeding increase with advancing age. After isolation of an enriched population of cerebral ECs, we studied gene expression in ECs isolated from murine brains of increasing ages of 2, 6, 12, 18, and 24 months. The study reveals age-dependent dysregulation of 1388 genes in the ECs, including many involved in the maintenance of BBB and vascular integrity. Since epigenetic mechanisms regulate gene expression, we also investigated age-dependent changes at the levels of CpG methylation and accessible chromatin in cerebral ECs. Our study reveals correlations between age-dependent changes in chromatin structure and gene expression. We find significant age-dependent downregulation of the apelin receptor (Aplnr) gene along with an age-dependent reduction in chromatin accessibility of the promoter of this gene. Aplnr is known to play a crucial role in positive regulation of vasodilation and is implicated in vascular health. Interestingly, we also observe an age-dependent reduction in the protein expression levels of the apelin receptor in the brain, potentially implicating the apelin receptor to be critical for the increased risk of intracerebral hemorrhage with ageing.

2023-09-20 | GSE218648 | GEO

Examining Transcriptomic Alterations in Rat Models of Intracerebral Hemorrhage and Severe Intracerebral Hemorrhage

Project description:Intracerebral hemorrhage (ICH) is a life-threatening condition associated with significant morbidity and mortality. Understanding the molecular mechanisms underlying ICH and its severe form is crucial for developing effective therapeutic strategies. This study investigates transcriptomic alterations in rodent models of ICH and severe intracerebral hemorrhage to shed light on the genetic pathways involved in hemorrhagic brain injury. We performed principal component analysis, revealing distinct principal component segments of normal rats compared to intracerebral hemorrhage and severe intracerebral hemorrhage rats. We further employed heatmaps and volcano plots to identify differentially expressed genes and utilized bar plots and KEGG pathway analysis to elucidate the different molecular pathways involved. Using comprehensive RNA sequencing and bioinformatics analyses, we identified a multitude of differentially expressed genes in both the ICH and severe ICH models. Our results revealed 5679 common genes among the normal, intracerebral hemorrhage, and severe intracerebral hemorrhage groups in the upregulated genes group, and 1196 common genes in the downregulated genes. A volcano plot comparing the groups further highlighted common genes, including PDPN, TIMP1, SERPINE1, TUBB6, and CD44. These findings underscore the complex interplay of genes involved in inflammation, oxidative stress, and neuronal damage. Furthermore, pathway enrichment analysis uncovered key signaling pathways, including the TNF signaling pathway, protein processing in the endoplasmic reticulum, MAPK signaling pathway, and Fc gamma R-mediated phagocytosis, implicated in the pathogenesis of ICH.

2024-06-11 | GSE264394 | GEO

Analysis of Age-Dependent Transcriptomic Changes in Response to Intracerebral Hemorrhage in Mice

Project description:To investigate age-dependent transcriptomic changes between young or aged intracerebral hemorrhage mice, we established collagenase IV-induced intracerebral hemorrhage mice models. Intracerebral hemorrhage was induced by infusion of sterile collagenase IV in ipsilateral caudate putamen of brain. We then performed gene expression profiling analysis using data obtained from RNA-seq of brain perihematomal tissues from young or aged ICH mice 24 hours after intracerebral hemorrhage.

2022-04-29 | GSE200575 | GEO

Gut microbiota dysbiosis and neurological function recovery after intracerebral hemorrhage [16S rRNA-Seq]

Project description:We aimed to investigate the microbial community composition in patients with intracerebral hemorrhage (ICH) and its effect on prognosis. The relationship between changes in bacterial flora and the prognosis of spontaneous cerebral hemorrhage was studied in two cohort studies. Fecal samples from healthy volunteers and patients with intracerebral hemorrhage were subjected to 16S rRNA sequencing at three time points: T1 (within 24 hours of admission), T2 (3 days post-surgery), and T3 (7 days post-surgery) using Illumina high-throughput sequencing technology.

2024-08-22 | E-MTAB-14351 | biostudies-arrayexpress

Age-associated changes in murine endothelial gene expression and chromatin accessibility correlate with impaired blood-brain barrier integrity and elevated risk of intracerebral hemorrhage [ATAC-seq]

2023-09-20 | GSE218647 | GEO

Transcriptome sequencing of human brain tissue after intracerebral hemorrhage

Project description:We used tissue bulk RNA-seq to analyze gene expression profile in the brain after intracerebral hemorrhage.

2021-09-01 | GSE167758 | GEO

Examining Transcriptomic Alterations in Rat Models of Intracerebral Hemorrhage and Severe Intracerebral Hemorrhage

Project description:Examining Transcriptomic Alterations in Rat Models of Intracerebral Hemorrhage and Severe Intracerebral Hemorrhage

| PRJNA1102337 | ENA

Study of the pathology and the underlying molecular mechanism of tissue injury around hematoma following intracerebral hemorrhage

Project description:We compare the perihematoma tissues before and after intracerebral hemorrhage in rats. Gene Ontology functional annotation, Protein interaction network analysis, reverse transcription quantitative PCR technology, Western blot technology, immunofluorescence technology and Causal network analysis are used to detect the changes of RET before and after intracerebral hemorrhage and the pathways in which RET might be involved.

2021-03-31 | GSE171144 | GEO

Age-associated changes in murine endothelial gene expression correlate with impaired blood-brain barrier integrity and elevated risk of intracerebral hemorrhage.

Project description:Age-associated changes in murine endothelial gene expression correlate with impaired blood-brain barrier integrity and elevated risk of intracerebral hemorrhage.

| PRJNA891694 | ENA

Development of gene expression signatures in experimental intracerebral hemorrhage

Project description:To identify the potential lncRNA and mRNA post intracerebral hemorrhage (ICH), we have employed lncRNA microarray expression profiling. 570 mRNAs and 313 lncRNAs were identified in the ICH vs sham group .Expression of six mRNA (Saa3, Col10a1, Mmp13, Oxt, Pcdhb6 and Resp18) and lncRNA (ENSMUT00000141700, AK143011, ENSMUT00000128306, AK030988, ENSMUST00000187076 and ENSMUST00000134129) from this signature was quantified by qPCR.

2023-05-17 | GSE227683 | GEO

OmicsDI is part of the ELIXIR infrastructure

OmicsDI is an Elixir interoperability service. Learn more ›

Tweets

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