Age: 44 Sex: M Ethnic group: black Smoking status: COPD, GOLD-I, 57 pack-years
Extracted molecule
total RNA
Extraction protocol
Trizol extraction and RNAeasy clean-up of total RNA was performed according to the manufacturer's instructions.
Label
biotin
Label protocol
Biotinylated cRNA were prepared according to the standard Affymetrix protocol from 3 microg total RNA (Expression Analysis Technical Manual, 701022 Rev.2, Affymetrix).
Hybridization protocol
Following fragmentation, 15 microg of cRNA were hybridized for 16 hr at 45C on GeneChip HG-U133 Plus 2.0. GeneChips were washed and stained in the Affymetrix Fluidics Station 450.
Scan protocol
GeneChips were scanned using the GeneChip Scanner 3000 7G.
Description
small airways, COPD 108
Data processing
The data were analyzed with Microarray Suite version 5.0 (MAS 5.0) using Affymetrix default analysis settings and global scaling as normalization method.
