Project description:This SuperSeries is composed of the following subset Series: GSE12754: Expression data from 28 day sham and shunt atrial and ventricular tissues (set 1) GSE12755: Expression data from 28 day sham and shunt atrial tissues (set 2) Refer to individual Series
Project description:Pharmacological and gene ablation studies have demonstrated a crucial role of the caridac natriuretic peptides (NP) hormones ANF and BNP in the maintenance of cardiovascular homeostasis. Considerable effort has been focused on the elucidation of the mechanistic underlying increased atrial ANF and BNP expression and secretion. These investigations are important because under chronic congestive heart failure, the secretion of NPs although increased and beneficial, is relatively insufficient as demonstrated by the fact that patients benefit form the unloading of the heart induced by therapeutic administration of either ANF or BNP. To identify genes involved in the transcriptional response of the endocrine heart under normal and stimulated states, we conducted differential gene expression studies of the rat atria under normal or chronic volume overload, induced by aorto-caval shunt. The left and right atrial appendages were obtained from 28 day sham and shunt operated male Sprague Dawley rats. Total RNA was obtained from three pools (of two tissues) of right atria and left atria under sham and shunt conditions. Three biological replicates for each muscle type and condition were generated.
Project description:Pharmacological and gene ablation studies have demonstrated a crucial role of the caridac natriuretic peptides (NP) hormones ANF and BNP in the maintenance of cardiovascular homeostasis. Considerable effort has been focused on the elucidation of the mechanistic underlying increased atrial ANF and BNP expression and secretion. These investigations are important because under chronic congestive heart failure, the secretion of NPs although increased and beneficial, is relatively insufficient as demonstrated by the fact that patients benefit form the unloading of the heart induced by therapeutic administration of either ANF or BNP. To identify genes involved in the transcriptional response of the endocrine heart under normal and stimulated states, we conducted differential gene expression studies of the rat atria and ventricles under normal or chronic volume overload, induced by aorto-caval shunt. The left atrial appendages and left ventricular free walls were obtained from 28 day sham and shunt operated male Sprague Dawley rats. Total RNA was obtained from three pools (of two tissues) of left atria and left ventricles under sham and shunt conditions. Three biological replicates for each muscle type and condition were generated.
Project description:Transcriptional profiling of miRNAs from rat brain tissues comparing controls (Sham) with ischemic rats (tMCAO) and neuroprotected rats (RLIP) Internal normalization: ischemic core vs. periischemic and ANOVA comparison across three experimental conditions: Sham, tMCAO and RLIP