Project description:RNA-seq analysis was used to identify the gene expression changes of young adults after feeding 5mM tryptophan for 36 hours from the L4 period. Based on these sequencing data, the genes that were up-regulated or down-regulated by at least 2 times (|log2 (folding change) | ≥ 1 and padj ≤ 0.05) were analyzed. The analysis of these differentially expressed genes' pathway and gene ontology (GO) enrichment shows that the influence of different genders after feeding 5mM tryptophan is enriched to some signal pathways, including longevity、ribosome and protein degradation pathway in endoplasmic reticulum, etc.
Project description:Transcriptional profiling of N2 vs. mir-243 worms, aiming to identify direct and indirect targets of the microRNA. N2 and mir-243 young-adult worms grown at 20C were analyzed. Three biological replicates with dye-swaps were performed.
Project description:Mice were fed a normal chow diet or a tryptophan depleted diet for two weeks under normal 12-hr light/dark cycles (LD) or in constant darkness (DD). Mice were sacrificed every 4th hour over the 24-hr circadian cycle. The suprachiasmatic nucleus (SCN) was harvested and RNA was isolated using a standard TRIZOL protocol. The data suggest that dietary tryptophan is an important component of the diet regulating circadian homeostsis.
Project description:Mice were fed a normal chow diet or a tryptophan depleted diet for two weeks under normal 12-hr light/dark cycles (LD) or in constant darkness (DD). Mice were sacrificed every 4th hour over the 24-hr circadian cycle. The liver was harvested and RNA was isolated using a standard TRIZOL protocol. The data suggest that dietary tryptophan is an important component of the diet regulating circadian homeostsis.
Project description:To clarify the mechanisms of innate immune responses mediated by epithelial barrier disruption. Reveal the host’s broad transcriptional response to P. aeruginosa infection during disruption of the intestinal barrier. We used RNA-Seq analysis to study the transcriptomic profiles of wt worms were exposed to either P. aeruginosa PA14 or E. coli OP50 for 24 hours, and the transcriptomic profiles of egl-44(MT2247) mutants fed E. coli OP50 for 24 hours. Differential expression analysis was performed by comparing wt worms exposed to PA14 versus wt worms exposed to E. coli OP50, and egl-44(MT2247) mutants fed E. coli OP50 versus WT worms fed E. coli OP50.
Project description:Eggs were isolated by hypochlorite treatment and allowed to hatch in the absence of food as L1 stage arrested worms in S-buffer. Worms were then transferred to large plates containing NGM alone or NGM+ resveratrol and allowed to grow till young adult stage (ca 40 hours). Worms were harvested and total RNA extracted using Trizol reagent. Poly-A+ RNA was isolated using Qiagen midi-prep kit and used for microarray hybridization. A compound treatment design type is where the response to administration of a compound or chemical (including biological compounds such as hormones) is assayed. Compound Based Treatment: Resveratrol Computed
Project description:Recent advances in the study of Schistosoma mansoni genome and transcriptome have led to a better description of the S. mansoni gene complement. In this work, we report the design and use of a new S. mansoni 60-mer oligonucleotide microarray platform with approximately 44,000 probes, based on all publicly available cDNA sequence data for S. mansoni and S. japonicum. The large number of probes combined with the extensive sequence annotation available allowed a comprehensive approach, where most of the S. mansoni transcriptome is represented. Hybridization with adult worm RNA pointed to a set of genes transcriptionally active in this stage of the parasite life cycle. Interestingly, a large proportion (43%) of genes for which transcription was detected in adults is comprised of no match genes, i.e. S. mansoni genes with unknown function and no identifiable orthologs in GenBank. Moreover, detection of bi-directional transcription for several genes leads us to hypothesize a widespread production of antisense RNA in S. mansoni. Keywords: Expressed genes in adult worms