GEO Logo
   NCBI > GEO > Accession DisplayHelp Not logged in | LoginHelp
GEO help: Mouse over screen elements for information.
Sample GSM674404 Query DataSets for GSM674404
Status Public on Apr 01, 2011
Title smoker 408D
Sample type RNA
Source name cord blood, smoker
Organism Homo sapiens
Characteristics tissue: cord blood
smoking status: smoker
age (years): 22
maternal bmi: 20
parity: 2
gestational age (weeks): 37
mode of delivery: vaginal
placental weight (g): 580
newborn weight (g): 2920
apgar score (5s): 9
maternal blood cotinine (ng/ml): 19.13
cord blood cotinine (ng/ml): 22.82
individual: 408
Extracted molecule total RNA
Extraction protocol Umbilical cord blood was sampled and processed using the LeukoLOCK™ Total RNA Isolation System (Ambion, Austin, TX, USA) according to the manufacturer manual. The system employs filter-based leukocyte-depletion technology to isolate leukocytes from whole blood and RNAlater™ (Ambion) to stabilize the cells on the filter. By removal of red blood cells, the RNA purified from captured leukocytes is inherently depleted of globin mRNA, which improves sample quality for expression profiling and other applications. Integrity of the total RNAs was assayed by the Bioanalyzer 2100 (Agilent Technologies, Santa Clara, CA, USA), and only samples with RNA integrity number (RIN) above 7.0 were used for gene expression profiling.
Label biotin
Label protocol Biotinylated cRNA was prepared from 200 ng of total RNA using the Illumina TotalPrep RNA Amplification Kit (Ambion). In vitro transcription (IVT) was performed at 37°C for 14 hours.
Hybridization protocol 750 ng of biotinylated cRNA was hybridized to the array for 17 hours according to the manufacturer manual. Final staining was performed with streptavidin conjugated to Cy-3 fluorescent dye.
Scan protocol Arrays were scanned using BeadArray Reader (Illumina), and bead level data were extracted by BeadStudio Software (Illumina).
Description 408D
Data processing Bead summary data were imported into the R statistical environment ( and normalized by the quantile method in the Lumi package. Only probes that reached detection P-value < 0.01 in all samples were used for further analyses. Differentially expressed genes were analysed in the Limma package. A linear model was fitted for each gene given a series of arrays using the lmFit function. Using the Benjamini and Hochberg method, P-values were corrected for multiple testing. The M, PL, and D groups were normalized separately.
Submission date Feb 13, 2011
Last update date Apr 01, 2011
Contact name Hana Bruchova
Phone +420221977306
Fax +420221977371
Organization name Institute of Hematology and Transfusion
Department Molecular Genetics
Lab Genomics
Street address U nemocnice 1
City Prague 2
ZIP/Postal code 128 20
Country Czech Republic
Platform ID GPL6883
Series (1)
GSE27272 Comprehensive Study of Tobacco Smoke-Related Transcriptome Alterations in Maternal and Fetal Cells

Data table header descriptions
VALUE Normalized data

Data table
ILMN_1802380 9.500836874
ILMN_1792389 5.43865369
ILMN_2375156 4.268587529
ILMN_1697642 5.44645663
ILMN_1681845 8.774548347
ILMN_1690979 2.691887612
ILMN_1811114 2.319520321
ILMN_1660729 1.710088709
ILMN_2129572 1.80582613
ILMN_1705659 1.920473923
ILMN_1674774 1.161908032
ILMN_1702329 0.840385563
ILMN_1658806 1.627128416
ILMN_2310896 7.199435722
ILMN_1675927 1.553879344
ILMN_2109994 7.856139792
ILMN_1745256 8.721744441
ILMN_2191313 3.884233375
ILMN_1689123 8.573586531
ILMN_1674337 6.683827467

Total number of rows: 24526

Table truncated, full table size 596 Kbytes.

Supplementary data files not provided
Processed data included within Sample table

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