Browse
Submit Data
Databases
API
Help

Dataset Information

0 Views

0 Connections

0 Citations

0 Reanalyses

0 Downloads

Omics score: 0

Altered expression of microRNAs in the myocardium of rats with acute myocardial infarction

ABSTRACT: MicroRNAs are important cellular components and their dysfunctions are associated with various disease. Acute myocardial infarction (AMI) is one of the most serious cardiovascular diseases. Although several miRNAs have been reported to be associated with AMI, more novel miRNAs are needed to be investigated to ascertain if they are associated with AMI.

ORGANISM(S): Rattus norvegicus Mus musculus Homo sapiens

PROVIDER: GSE19695 | GEO | 2010/01/05

SECONDARY ACCESSION(S): PRJNA121869

REPOSITORIES: GEO

ACCESS DATA

Json Xml

Dataset's files

Source:

			Action	DRS
		Other

Items per page:

1 - 1 of 1

Similar Datasets

Altered expression of microRNAs in the myocardium of rats with acute myocardial infarction

Project description:MicroRNAs are important cellular components and their dysfunctions are associated with various disease. Acute myocardial infarction (AMI) is one of the most serious cardiovascular diseases. Although several miRNAs have been reported to be associated with AMI, more novel miRNAs are needed to be investigated to ascertain if they are associated with AMI. SD rats (180-200g) was divided into sham-control group and two days group after AMI, seven days group after AMI, fourteen days group after AMI, each group has six individual animals total RNA was taken from the border-zone myocardium , low molecular weight RNA was seperate and labeled , and then hybridized to capitalbio V2 biochip representing about 924 microRNA . three chip were test in each group, and the procedure was repeated twice.

2010-04-22 | E-GEOD-19695 | biostudies-arrayexpress

Transciptome analysis of acute myocardial infarction

Project description:Analysis of peripheral blood specimens from patients with acute myocardial infarction (AMI). Results provide insight into molecular mechanisms associated with AMI.

2018-12-08 | GSE123487 | GEO

Reward System Activation Improves Recovery from Acute Myocardial Infarction".

Project description:The recovery from acute myocardial infarction (AMI) is influenced by physiological and psychological factors. While the physiological effects have been extensively studied, the contribution of psychological factors and whether they can be modulated is not completely clear. Here we show that the activity of the reward system, a brain network involved in motivation and positive expectation, affects outcomes in mice following AMI. We found that chemogenetic activation of dopaminergic neurons in the ventral tegmental area (VTA) significantly attenuated the remodeling process following AMI, resulting in improved left-ventricular performance compared to controls. VTA activation was associated with modulation of the immune response following AMI and increased blood vessel formation in the damaged area, mediated, at least in part, by changes in liver-secreted proteins. Together, our findings reveal a potential mechanism by which specific brain activity can affect the multifactorial systemic and local tissue response to AMI, introducing a novel target for therapeutic interventions

2024-05-03 | PXD043448 | Pride

Diagnostic value of circulating miR-146b-5p and miR-222-5p in patients with acute myocardial infarction

Project description:In this study we aim to evaluate the diagnostic value of miRNAs for in the detection of acute myocardial infarction (AMI). We used microRNA microarray to screen differentially expressed microRNAs (miRNAs) in rat myocardial infarcted tissues compared with healthy control tissues. Then the expression of these miRNAs was further verified by quantitative real-time polymerase chain reaction (RT-PCR) in rat myocardial infarcted tissues and plasma. Finally, the diagnostic value of these circulating miRNAs was explored in 44 patients with AMI, 53 with coronary heart disease (CHD) and 56 healthy controls.

2024-08-01 | GSE239822 | GEO

Platelet gene expression profiling of acute myocardial infarction

Project description:Acute myocardial infarction (AMI) is primarily due to coronary atherosclerotic plaque rupture and subsequent thrombus formation. Platelets play a key role in the genesis and progression of both atherosclerosis and thrombosis. Since platelets are anuclear cells that inherit their mRNA from megakaryocyte precursors and maintain it unchanged during their life span, gene expression (GE) profiling at the time of an AMI provides information concerning the platelet GE preceding the coronary event. In ST-segment elevation myocardial infarction (STEMI), a gene-by-gene analysis of the platelet GE identified five differentially expressed genes (DEGs): FKBP5, S100P, SAMSN1, CLEC4E and S100A12. The logistic regression model used to combine the GE in a STEMI vs healthy donors score showed an AUC of 0.95. The same five DEGs were externally validated using platelet GE data from patients with coronary atherosclerosis but without thrombosis. Early signals of an imminent AMI are likely to be found by platelet GE profiling before the infarction occurs.

2019-12-31 | GSE109048 | GEO

Blood milieu in acute myocardial infarction reprograms human macrophages for trauma repair

Project description:Acute myocardial infarction (AMI) is accompanied by a systemic trauma response that impacts on the whole body, including blood. In this study, we addressed whether macrophages, key players in trauma repair, sense and respond to these changes. For this, healthy human monocyte-derived macrophages were exposed to 20% human AMI (n=50) or control (n=20) serum and analyzed by transcriptional and multiparameter functional screening followed by network-guided data interpretation and drug repurposing. Results were validated in an independent cohort at functional level (n=47 AMI, n=25 control) and in a public dataset. AMI serum exposure resulted in an overt AMI signature, enriched in debris cleaning, mitosis, and immune pathways. Moreover, we identified gene networks associated with AMI and with poor clinical prognosis in AMI. Network-guided drug screening on the latter unveiled Prostaglandin E2 (PGE2) signaling as target for clinical intervention in detrimental macrophage imprinting during AMI trauma healing. Our results demonstrate pronounced context-induced macrophage reprogramming by the AMI systemic environment, to a degree decisive for patient prognosis. This offers new opportunities for targeted intervention and optimized cardiovascular disease risk management.

2022-12-18 | GSE215801 | GEO

RNA-sequencing of porcine heart after myocardial infarction with or without human umbilical cord-derived MSC (hUCM-MSC) delivery

Project description:Human umbilical cord matrix-mesenchymal stromal cells (hUCM-MSC) have demonstrated beneficial effects in experimental acute myocardial infarction (AMI). In this study, we investigated the outcome of the delivery of hUCM-MSC after reperfusion in a translational model of AMI in swine. We have found that intracoronary injection of the cell product was associated with improved systolic function and that improvement in mechanical performance. This did not depend on the reduction of morphological infarct size alone, despite treated animals showing signs of less adverse remodeling.

2023-06-01 | E-MTAB-13022 | biostudies-arrayexpress

Research on the circular RNA bioinformatics in patients with acute myocardial infarction

Project description:To further development of our gene expression approach to biodosimetry, We through the detection of circular RNA (circRNA) using expression profiling chips, we searched for circRNAs related to acute myocardial infarction (AMI) and explored their relationship and possible mechanisms with AMI. The study subjects included 3 AMI patients and 3 controls, and circRNA expression profiling analysis was performed using a microarray gene chip to identify circRNAs with large differences in expression between groups and to construct a circRNA-microRNA (circRNA-miRNA) network.

2022-04-22 | GSE149051 | GEO

Expression alteration of plasma exosomal circular RNAs in OSA patients with acute myocardial infarction

Project description:This study demonstrated that there were a number of dysregulated circRNAs in exosomes from OSA with AMI patients, which might be effectively served as a promising diagnostic biomarker and therapeutic targets. Objectives: Circular RNAs (circRNAs) are recently identified as a class of non-coding RNAs that participate in the incidence of acute myocardial infarction(AMI)

2022-02-23 | GSE197137 | GEO

Gasdermin D inhibition confers antineutrophil mediated cardioprotection in acute myocardial infarction

Project description:Acute myocardial infarction (AMI) induces blood leukocytosis, which correlates inversely with patient survival. The molecular mechanisms leading to leukocytosis, and recruitment to the infarcted heart, remain poorly understood. Using an AMI mouse model, gasdermin D (GSDMD) was identified in activated neutrophils early in AMI. We demonstrated that GSDMD is required for enhanced recruitment of neutrophils and monocytes to the infarcted heart. Loss of GSDMD resulted in reduced release of IL-1β from neutrophils and reduced recruitment of neutrophils and monocytes to the infarcted heart. Knockout of GSDMD in mice significantly reduced infarct size, improved cardiac function and increased survival post AMI. Through a series of bone marrow transplantation studies and leukocytes depletion experiments, we further demonstrated that excessive bone marrow derived and GSDMD-dependent neutrophil recruitment, contributes to the detrimental immunopathology after AMI. Pharmacological inhibition of GSDMD also conferred cardioprotection post AMI, through reduction of scar size and enhancement of heart function. Our study provides new mechanistic insights into molecular regulation of neutrophil generation and recruitment after AMI, and supports GSDMD as a new target for improved ventricular remodeling and reduced heart failure after AMI.

2022-01-05 | GSE181872 | 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