Project description:Here we provide snRNA-seq datasets from heart failure patients with reduced ejection fraction and snRNA-SEQ of the corresponding LAD mouse model (permanent ligation of the left anterior descending artery)
Project description:To investigate the function of genes in heart, we performed gene expression microarray for the hearts of 4 sham-operated mice and 4 anterior interventricular artery ligated mice. 4 mice were subjected to permanent occlusion of the anterior interventricular artery while 4 mice were subjected to the identical surgical procedure without coronary ligation. 24 hours after the permanent occlusion, mice were sacrificed and the ventricles of heart were harvested for RNA isolation. Total RNAs were labelled and hybridised on Agilent Mouse SurePrint G3 Array. One sample per array.
Project description:Rats underwent surgery for LAD ligation for 30 min followed by reperfusion. Heart ventricles were collected 2d or 7d after reperfusion. Keywords: rat heart ventricles, LAD - left anterior descending coronary artery, IR - ischemia-reperfusion
Project description:We established a rat model of myocardial Infarction by performing a surgical operation of left anterior descending coronary artery occlusion under sterie conditions. Wistar rats were previously randomly divided into 4 groups: control, ischemia, ischemia-propranolol, and non-ischemia-propranolol. Our data suggested that propranolol could reverse many microRNAs with too high or too low expression in the ischemia group versus control group. Wistar rats were initially anesthetized with pentobarbital (40 mg/kg, i.v.), which were previously randomly divided into 4 groups: control, ischemia (MI), ischemia-propranolol (MI-PRO), and non-ischemia-propranolol (NMI-PRO). The rat model of MI was established by performing a surgical operation of left anterior descending coronary artery occlusion under sterie conditions. Successful occlusion was confirmed by an increase in the amplitude of R wave of lead I during the first few seconds of each occlusion and elevation of S-T segment of lead II, and a 20-30% decline in the arterial blood pressure compared to the pre-ischemic values mesured by a previously installed ECG recorder (BL 420, ChengDu TME Technology Co, Ltd, ChengDu, China). Propranolol was administrated 2 months before the experiment with daily oral doses of 50 mg/kg. Hearts were quickly isolated after the rats were sacrificed and the ischemic zone of the left ventricle was prepared for the miRNA microarray experiment. Control and NMI-PRO animals underwent open chest procedures without coronary artery occlusion.
Project description:The left anterior descending coronary artery permanent ligation model of myocardial infarction was used to study the time of day differences in genetic responses post-MI between sleep-time MI, wake-time MI, wake-sham and sleep-sham mouse hearts. The micorarray approach allows the investigation of gene expression changes of all genes in sleep-time MI vs. wake-time MI vs. sham hearts.
Project description:ScRNA-seq was used to investigate the effects of autocrine versus paracrine VEGF-B signaling in the heart using transgenic mouse models. The paracrine model was further investigated in pregnancy-induced cardiac hypertrophy as well as in mice with ligation of the left anterior descending (LAD) coronary artery.
Project description:Cardiopoietic stem cells are in advanced clinical testing for ischemic heart failure. To profile their uncharted molecular influence on recipient hearts, systems proteomics was applied in a chronic murine model of infarction randomized with and without human cardiopoietic stem cell treatment. Four biological replicates are included from each of three separate groups, Control (Ctrl, n=4), myocardial infarction without treatment (MI, n=4), and MI with cardiopoietic stem cell treatment (CP, n=4). Athymic nude male mice (2-3 months of age) underwent left anterior descending coronary artery ligation (70-min occlusion followed by reperfusion). ST elevation on the electrocardiogram confirmed MI. Four weeks post-MI, animals were randomized into cohorts without (MI, n=4) or with (CP, n=4) cell therapy. Human CP cells were generated from bone marrow derived mesenchymal stem cells using an established cardiopoiesis protocol. Media (15 µL), with or without CP cells (600,000 cells/heart), were epicardially delivered in infarcted left ventricles.
Project description:We established a rat model of myocardial Infarction by performing a surgical operation of left anterior descending coronary artery occlusion under sterie conditions. Wistar rats were previously randomly divided into 4 groups: control, ischemia, ischemia-propranolol, and non-ischemia-propranolol. Our data suggested that propranolol could reverse many microRNAs with too high or too low expression in the ischemia group versus control group.
Project description:We investigated the effect of 2 food-based dietary patterns and statin therapy on the transcriptome of the left anterior descending coronary artery of the Ossabaw pig.
Project description:To test the mechanism by which IGF1 is cardioprotective, we performed single cell RNA sequencing on myeloid cells isolated from the heart 3 days after myocardial infarction of mice with and without IGF1 treatment. Myocardial infarction was induced in C57Bl6/J mice by 45 min occlusion of the left anterior descending artery followed by 3 days of reperfusion. Animals of the IGF1 group (n=3) received 40 ng/g mature recombinant IGF1 subcutaneously as bolus at the beginning of reperfusion. In addition, IGF1 (1 µg/g/d) was administered continuously during reperfusion using micro-osmotic pumps (Alzet, 1003D) that were implanted subcutaneously. Control mice received vehicle (0.1% BSA). After 3 days hearts were digested and CD45+CD11b+ cells were isolated using FACS cell sorting. Each sample contained cells containing 1 control and 1 IGF1 treated mouse, labeled with TotalSeq hashtags. 16000 cells were used as input for the single-cell droplet libraries generation for each sample.
