Project description:This SuperSeries is composed of the following subset Series: GSE34158: Expression data from peripheral blood - blood draws at Pre and Post time points of Allergen inhalation challenge (PAX.GR) GSE34159: Expression data from peripheral blood - blood draws at Pre and Post time points of Allergen inhalation challenge (PAX.NGR) GSE34160: Expression data from peripheral blood - blood draws at Pre and Post time points of Allergen inhalation challenge (PAX.NGR and EDTA) Refer to individual Series
Project description:Expression data from peripheral blood - blood draws at Pre and Post time points of Allergen inhalation challenge (PAX.NGR and EDTA)
Project description:Evaluate the effect of methacholine-induced bronchoconstriction on the peripheral whole-blood transcriptome, post-challenge compared to pre-challenge. Blood was collected immediately prior to, and two hours after challenge. 28 total blood samples (14 Pre- and 14 Post-challenge) were analyzed. Robust regression in the Linear Models for MicroArrays (LIMMA) was used to compaire gene expression between Pre and Post time points. No pre-filtering of probe sets was performed prior to statistical analyses. In addtion, and FDR of 10% was used to deteremine signifance of genes.
Project description:To determine differential gene expression in peripheral blood of asthmatic individuals undergoing allergen inhalation challenge, post-challenge compared to pre-challenge Blood was collected immediately prior to, and two hours after challenge The 8 PAXgene non-globin reduced (PAX.NGR) samples were combined with 10 EDTA samples (n=9) for one analysis (PAX.NGR+EDTA) comparing gene expression in whole blood between pre and post challenge using the following covariates: tube type, sex, age, PC20 at pre-challenge, and FEV1 after onset and 2h post challenge and the RNA integrity number. Preprocessing and filtering were applied to the PAX.NGR+EDTA dataset using the Factor Analysis for Robust MicroArray Summarization (farms) package in R The Linear Models for MicroArrays (limma) package was used to determine differential gene expression using a Benjamini Hochberg FDR of 5%.
Project description:To determine differential gene expression in peripheral blood of asthmatic individuals undergoing allergen inhalation challenge between early responders (ERs) and dual responders (DRs) following allergen inhalation challenge Blood was collected immediately prior to, and two hours after challenge The change in gene expression (post expression minus pre expression) in ERs was compared with the change in gene expression in DRs using age and sex as covariates Preprocessing and probeset filtering were applied to the entire dataset (28 CEL files) using the Factor Analysis for Robust MicroArray Summarization (farms) package in R The Linear Models for MicroArrays (limma) package was used to determine differential gene expression using a Benjamini Hochberg FDR of 10%.
