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NextGen microRNA sequencing of mouse plasma collected from myocardial infarction mice and sham mice

ABSTRACT: NextGen microRNA sequencing of mouse plasma collected from myocardial infarction mice and sham mice

PROVIDER: PRJNA512468 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR8383010.fastq.gz	Fastqsanger.gz
	SRR8383011.fastq.gz	Fastqsanger.gz
	SRR8383012.fastq.gz	Fastqsanger.gz
	SRR8383009.fastq.gz	Fastqsanger.gz

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NextGen microRNA sequencing of mouse plasma collected from myocardial infarction mice and sham mice

Project description:Many microRNA expression levels in plasma are greatly changed after mouse myocardial infarction. We aim to find out the steadily-expressed microRNAs in plasma under hypoxia and normoxia, so as to be further utilized for normalization of microRNA expression detection.

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microRNA data from mice hearts of 21 days post myocardial infarction versus sham control

Project description:microRNAs control cardiac remodeling post myocardial infarction, though the cellular and molecular mechanisms remain unclear. We used microarrays to examine microRNA profiles in mice hearts 21 days after ligation of left anterior descending coronary artery (LAD) versus sham control.

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Single-cell RNA-seq of mouse cardiac interstitial cells 3 & 7 days after sham or myocardial infarction injury

Project description:The aims of the experiment were to profile the cell types in the adult mouse cardiac interstitium (non-myocyte cells) and how they respond to myocardial infarction injury. Adult, male, Pdgfra +/GFP mice were subject to either a myocardial infarction or sham injury, with cells isolated from cardiac ventricles 3 or 7 days following surgery. We obtained scRNA-seq profiles of two cell fractions: total interstitial (non-myocyte) cell population (TIP) and FACS-sorted GFP+/Cd31- cells (GFP).

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Molecular alterations following myocardial infarction in mice

Project description:Background and Aims: It is known that inflammatory processes are activated in heart failure, but the regulation of cytokines and their role in the pathogenesis of the disease are not well understood. To address this issue, we have performed microarray analysis of non-infarcted left ventricular tissue from mice at various time-points after myocardial infarction. Methods: Molecular alterations in myocardial tissue were measured 3, 5, 7 and 14 days after induced infarction by using cDNA microarrays. Sham operated mice served as controls. Altered gene transcriptions were verified by real-time polymerase chain reaction. Attention focused on genes encoding cytokines which had not previously been assigned a role in heart failure development. Results: The highest number of regulated genes was found at day 5 post myocardial infarction, and 22 genes encoding cytokines were identified as being regulated. Several of the identified genes encoding cytokines have not previously been associated with HF, and among those fractalkine showed strongest up-regulation. Keywords: Disease state analysis, time course

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Project description:Affymetrix microarray analysis of molecular changes after myocardial infarction. Samples of heart tissue were analyzed after myocardial infarction from WT and reg3beta knock-out mice. Samples from scar tissue and samples adjacent to the scar were analyzed. In the experiment we primarily compared infarction zone of wild-type to infarction zone of knock-out animals, and remote zone of wild-type to remote zone of knock-outs.

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Project description:We applied single-cell transcriptomics to identify cellular and molecular heterogeneity in distinct heart cell populations in myocardial infarction versus sham surgery mice.

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microRNA profiling of myocardial infarction on a PI3K setting in mouse models

Project description:Cardiac hypertrophy can lead to heart failure, and is induced either by physiological stimuli eg postnatal development, chronic exrcise training or pathological stimuli eg pressure or volume overload. This data set looks at microRNA profiles in mouse models to examine whether phosphoinositide 3-kinase (p110 alpha isoform) activity is critical for the maintenance of cardiac function and long term survival in a seeting of heart failure (myocardial infarction). The significance and expected outcome are to recognise genes involved in models of heart failure and attempt to examine underlying regulator pathways involved in possible cardica maintenance in the PI3K mouse model. The matching mRNA gene expression profile (GSE7487) is examined to look for mRNA and microRNA interactions. miRNA expression correlates directly with cardiac function. PI3K regulon ameliorates cardiac stress. Keywords: microRNA profiling, regulatory pathway discovery, genotype comparison Ntg (non-transgenics), dnPI3K (cardiac-specific transgenic model with reduced PI3K activity) and caPI3K (transgenic mice with increased PI3K activity) mice at 3-4 months of age were used. Mice were then subjected to myocardial infarction (occlusion of the left anterior descending aorta) and sham (open heart surgery) for 8 weeks. Left ventricles were harvested. The resulting 6 experimental models were profiled accordingly. The assignment of the mouse models is as follows: caPI3K Sham, Ntg Sham, dnPI3K Sham, caPI3K MI (myocardial infarction), Ntg MI and dnPI3K MI with n = 4 in each group.

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Single cell RNA sequencing of left ventricular endothelial cells after sham or acute myocardial infarction surgery in C57BL/6N wild-type mice.

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