Project description:Living organisms are intricate systems with dynamic internal processes. Their RNA, protein, and metabolite levels fluctuate in response to variations in health and environmental conditions. Among these, RNA expression is particularly accessible for comprehensive analysis, thanks to the evolution of high throughput sequencing technologies in recent years. This progress has enabled researchers to identify unique RNA patterns associated with various diseases, as well as to develop predictive and prognostic biomarkers for therapy response. Such cross-sectional studies allow for the identification of differentially expressed genes (DEGs) between groups, but they have limitations. Specifically, they often fail to capture the temporal changes in gene expression following individual perturbations and may lead to significant false discoveries due to inherent noise in RNA sequencing sample preparation and data collection. To address these challenges, our study hypothesized that frequent, longitudinal RNA sequencing (RNAseq) analysis of blood samples could offer a more profound understanding of the temporal dynamics of gene expression in response to drug interventions, while also enhancing the accuracy of identifying genes influenced by these drugs. In this research, we conducted RNAseq on 829 blood samples collected from 84 Sprague-Dawley lab rats. Excluding the control group, each rat was administered one of four different compounds known for liver toxicity: tetracycline, isoniazid, valproate, and carbon tetrachloride. We developed specialized bioinformatics tools to pinpoint genes that exhibit temporal variation in response to these treatments.
Project description:This SuperSeries is composed of the following subset Series:; GSE3110: Comprehensive description of the transcriptome of hypothalamo-neurohypophyseal system in euhydrated and dehydrated rat; GSE3111: Comprehensive description of the transcriptome of PVN in euhydrated and dehydrated rat; GSE3125: Comprehensive description of the transcriptome of neurointermediate lobe in euhydrated and dehydrated rat Experiment Overall Design: Refer to individual Series
Project description:In order to establish a rat embryonic stem cell transcriptome, mRNA from rESC cell line DAc8, the first male germline competent rat ESC line to be described and the first to be used to generate a knockout rat model was characterized using RNA sequencing (RNA-seq) analysis.
Project description:A series of RNA-Seq experiment were conducted to study the transcriptome changes of olfactory sensory neurons during the critical period. We conducted RNA-seq of the olfactory epithelia at P0, P3, P7, P14, and P21 to identify the gene expression changes in the olfactory epithelia. We also performed RNA-Seq experiment of the olfactory epithelia from Kir2.1 transgenic mice at the same time points to understand the effect of neural activity deprivation on the transcriptome.
