Early life growth and gene profile changes during childhood

To compare early life exposures to see if they are associated with persistent molecular changes at the transcriptional level. Subjects were drawn from the Newcastle Pre-Term Birth Growth Study. A randomised, controlled trial to look at the effect on growth of dietary manipulation after hospital discharge. 23 chips with 4 conditions with factors sex and growth status (slow/rapid). Each condition has 6 replicates except for {male, rapid growth} which has 5 replicates.