Similar Datasets
Project description:Arid1b is a chromatin remodeler implicated in neurodevelopmental disorders. Arid1b mutant mice with haploinsufficiency (Arid1b HT) displayed persistent excitatory synaptic dysfunction from juvenile to adult stage, decreased synaptic density and transmission. Moreover, they showed autistic-like behaviors in both of early and adult stages, decreased sociability in pup USV calling and adult social interaction, and adult repetitive grooming. To investigate early transcriptomic changes in Arid1b mutant mice, RNAseq analysis of prefrontal cortex from wild-type and Arid1b mutant mice at postnatal day 10 was done. Transcriptomic changes support these electrophysiological and behavioral deficits. Arid1b HT mice at postnatal day 10 showed alterations in genes implicated in synaptic functions and ASD.
2022-07-21 | GSE203249 | GEO
Project description:Study on changes in gene expression in primary cultures of neonatal rat ventricular cardiomyocytes to electric stimulation. Through comparing non-stimulated, stimulated and blebbistatin supplemented and stimulated cultures we set out to identify the genes that are specifically activated by electric pulsing separate from cardiomyocyte contractions. After initial recovery phase, primary cultures of neonatal rat ventricular cardiomyocytes were cultured for 3 days without pulsing, with electric pulsing or with electric pulsing combined with blebbistatin. Per treatment: 3 arrays, with samples obtained from 3 separate series of cardiomyocyte isolation and culturing. Per array: sample prepared from pooled (1:1) RNA from duplicate experiments.
2009-12-10 | E-GEOD-15856 | biostudies-arrayexpress
Project description:Molecular analysis of transcriptional changes in cardiomyocytes induced by Oncostatin M treatment. The rationale of this experiment is described in [Kubin, T., et al. Oncostatin M is a major mediator of cardiomyocyte dedifferentiation and remodeling. Cell stem cell 9, 420-432 (2011)]
2015-02-27 | E-MTAB-2560 | biostudies-arrayexpress
Project description:Ischemic post-conditioning (iPoCo) by coronary re-occlusion/reperfusion during immediate reperfusion after prolonged myocardial ischemia reduces infarct size. Mechanical manipulation of culprit lesions, however, carries the risk of coronary microembolization which may obscure iPoCo's cardioprotection. Pharmacological post-conditioning with exogenous triiodothyronine (T3) could serve as an alternative conditioning strategy. Similar to iPoCo, T3 may activate cardioprotective prosurvival pathways. We aimed to study T3's impact on infarct size and its underlying signal transduction. Hearts were isolated from male Lewis rats (200-380 g), buffer-perfused and subjected to 30 min/120 min global zero-flow ischemia/reperfusion (I/R). In additional hearts, either iPoCo (2 × 30 s/30 s I/R) was performed or T3 (100-500 µg/L) infused at reperfusion. Infarct size was demarcated with triphenyl tetrazolium chloride staining and calculated as percent of ventricular mass. Infarct size was reduced with iPoCo to 16 ± 7% vs. 36 ± 4% with I/R only. The maximum infarct size reduction was observed with 300 µg/L T3 (14 ± 2%). T3 increased the phosphorylation of protein kinase B and mitogen extracellular-regulated-kinase 1/2, both key enzymes of the reperfusion injury salvage kinase (RISK) pathway. Pharmacological RISK blockade (RISK-BL) during reperfusion abrogated T3's cardioprotection (35 ± 10%). Adult ventricular cardiomyocytes were isolated from buffer-perfused rat hearts and exposed to 30 min/5 min hypoxia/reoxygenation (H/R); reoxygenation was initiated without or with T3, respectively, and without or with RISK-BL, respectively. Maximal preservation of viability was observed with 500 µg/L T3 after H/R (27 ± 4% of all cells vs. 5 ± 3% in time-matched controls). Again, RISK-BL abrogated protection (11 ± 3%). Mitochondria were isolated at early reperfusion from buffer-perfused rat hearts without or with iPoCo or 300 µg/L T3, respectively, at reperfusion. T3 improved mitochondrial function (i.e.: increased respiration, adenosine triphosphate production, calcium retention capacity, and decreased reactive oxygen species formation) to a similar extent as iPoCo. T3 at reperfusion reduces infarct size by activation of the RISK pathway. T3's protection is a cardiomyocyte phenomenon and targets mitochondria.
| S-EPMC8055637 | biostudies-literature
Project description:Myocardial regeneration is restricted to early postnatal life, when mammalian cardiomyocytes still retain the ability to proliferate. The molecular cues that induce cell cycle arrest of neonatal cardiomyocytes towards terminally differentiated adult heart muscle cells remain obscure. We report that the miR-106b~25cluster is higher expressed in the early postnatal myocardium and decreases in expression towards adulthood, especially under conditions of overload, and orchestrates the transition of cardiomyocyte hyperplasia towards cell cycle arrest and hypertrophy by virtue of its targetome. To identify the relevant targets of individual miRNAs in the miR-106b~15 cluster and elucidate the molecular mechanisms underlying the proliferative effects of this microRNA cluster, we assessed the global transcriptomic changes by deep-sequencing total neonatal mouse cardiomyocyte RNA after exogeneous transfection with hsa-miR-106b-5p, hsa-miR-93-5p, hsa-miR-25-3p and compared the transcriptomic profiles to cardiomyocytes transfected with cel-miR-67, a control miRNA.
2021-06-25 | GSE178867 | GEO
Project description:Effect of insulin on the cardiomyocyte global transcriptome and RNAs recruited to polysomes. <br>For comparison with endothelin-1
2010-07-04 | E-MEXP-2527 | biostudies-arrayexpress
Project description:Study on changes in gene expression in primary cultures of neonatal rat ventricular cardiomyocytes to electric stimulation. Through comparing non-stimulated, stimulated and blebbistatin supplemented and stimulated cultures we set out to identify the genes that are specifically activated by electric pulsing separate from cardiomyocyte contractions.
2009-12-10 | GSE15856 | GEO
Project description:Optimal Ang II levels during postnatal life are required for a normal maturation of the rat kidney. This study investigated both short- and long-term effect of MatSep on: 1) the status of intrarenal renin-angiotensin system components, 2) the isolated renal vasculature genome-wide gene expression trajectory from neonatal to adult life, and 3) the renal vascular architecture and function. In this dataset, gene expression changes by MatSep at P10 in renal vasculature isolated from neonates, modulate extracellular structure organization, vasculature development, inflammation and angiogenesis. The long -term effects of MatSep on renal vasculature gene expression is assessed at P180, which reveal clusters of genes with short, long, and downstream changes in expression.
2020-08-11 | GSE151402 | GEO
Project description:Rat feces at postnatal day 7 Raw sequence reads
| PRJNA795716 | ENA
Project description:In this study, we generated nucleotide-resolution translatome as well as transcriptome data of isolated primary cardiomyocytes undergoing hypertrophy. More than 10,000 open reading frames (ORF) were detected from the deep sequencing of ribosome protected fragments orchestrating the shift of translatome in hypertrophied cardiomyocytes.We further identified more than 100 potential micropeptides encoded by uncharacterized small open reading frames (sORFs) in the long noncoding RNA genes. Over two-thirds of these micropeptide candidates were experimentally validated in a random test with three micropeptides showing regulatory function in cardiomyocyte hypertrophy via modulating the activities of Oxidative phosphorylation, Calcium signaling pathway, and MAPK signaling pathway.Our study provided a genome-wide overview of the translational controls of cardiomyocyte hypertrophy and demonstrated an unrecognized role of micropeptides in cardiomyocyte biology.
2021-03-11 | GSE155899 | GEO