Fig. 2

Heatmap of all 416 probesets found differentially expressed between parous and nulliparous. Each column represents a volunteer. Dark blue represents parous women within 5 years since last full-term pregnancy, blue represents parous women with more than 5 years since pregnancy, and cyan represents nulliparous women. Each line corresponds to a probeset, which accordingly with its pattern of expression within the parous breast samples compared to nulliparous, was classified as downregulated (light yellow), transiently upregulated (yellow), long-term changing (orange), and long-term constant upregulated (brown)