NCBI Logo
GEO Logo
   NCBI > GEO > Accession DisplayHelp Not logged in | LoginHelp
GEO help: Mouse over screen elements for information.
          Go
Sample GSM2918192 Query DataSets for GSM2918192
Status Public on Jun 26, 2018
Title Kidney_24M_Vehicle_4
Sample type SRA
 
Source name Kidney
Organism Rattus norvegicus
Characteristics age: 24 months
treatment: Vehicle
Treatment protocol RAD001 (Novartis) was formulated as a custom made microemulsion pre-concentrate at 2 % (w/w) and diluted to a final concentration prior to dosing per os. Rats were treated with RAD001 diluted in water, supplemented with 0.25% methylcellulose. Microemulsion pre-concentrate (adequate to a dose) diluted in water with 0.25% methylcellulose served as a vehicle control. For RAD001 treatment, 22.5 m old rats received per os either a vehicle daily or RAD001 once a week (seven doses of RAD001 in total) and vehicle daily for the rest of the week for 6 weeks.
Extracted molecule total RNA
Extraction protocol Snap frozen kidneys, livers and gastrocnemius muscles were ground in liquid nitrogen by mortar and pestle and total RNA was extracted from ~30 mg of tissue powder using miRNeasy Micro Kit (Qiagen, 217084). The RNA concentration was quantified using NanoDrop Spectrophotometer (NanoDrop Technologies, USA) and the integrity validated by the OD260/OD280 absorption ratio (>1.8) and by RIN score (>8) using Agilent 2100 Bioanalyzer, RNA 6000 Nano LabChip kit and Agilent 2100 Expert Software (Agilent Technologies, Inc., Santa Clara, CA, USA).
 
Library strategy RNA-Seq
Library source transcriptomic
Library selection cDNA
Instrument model Illumina HiSeq 2500
 
Data processing The 76bp paired-end reads were mapped to rat genome rn5 using STAR 2.4.5a with default parameters.
A genome-wide transcription signal map was derived by counting reads coverage in 10 bp step after normalizing to 1 million total reads. Stranded information was used to separate counts from sense and antisense strand.
For gene annotation, we first clustered the Refseq transcripts based on the sharing of splicing sites to get a master set of gene loci representing all alternative isoforms.
Signal from sense-strand were averaged across the exonic regions for each gene locus to measure the transcription level. This measure is equivalent to the RPKM “reads per kilobase per million” in other RNAseq analyses.
Genome_build: rn5
 
Submission date Jan 09, 2018
Last update date Jun 26, 2018
Contact name Jun Shi
E-mail(s) [email protected]
Organization name Novartis Institutes for Biomedical Research
Street address 181 Massachusetts Avenue
City Cambridge
State/province MA
ZIP/Postal code 02139
Country USA
 
Platform ID GPL18694
Series (1)
GSE108978 Short-term low-dose mTORC1 inhibition in aged rats counter-regulates age-related gene changes and blocks age-related kidney pathology
Relations
BioSample SAMN08334890
SRA SRX3545900

Supplementary file Size Download File type/resource
GSM2918192_rn5.Kidney_24M_Vehicle_4.bw 106.7 Mb (ftp)(http) BW
GSM2918192_rn5.Kidney_24M_Vehicle_4.txt.gz 411.7 Kb (ftp)(http) TXT
SRA Run SelectorHelp
Raw data are available in SRA
Processed data provided as supplementary file

| NLM | NIH | GEO Help | Disclaimer | Accessibility |
NCBI Home NCBI Search NCBI SiteMap