Means and variances of 181 differentially expressed genes from the DEG_wBC set (time point 0 hours) in RA (a; n = 12; i.e. 6 patients with two replicates each) and OA (b; n = 12; i.e. 6 patients with two replicates each) with (red dots) or without BC (blue dots). There are generally only marginal changes of the means, but moderate to substantial reductions of the variances, as indicated by an exclusively horizontal shift.
Kupfer et al. BMC Medical Genomics 2012 5:23 doi:10.1186/1755-8794-5-23