Hi: Are there any ways or algorithms to carry out a meta-analysis of time series gene expression data sets. I know it is not an appropriate analysis since timepoints may not be comparable across experiments. However if I could choose only comparable time points (Say study1 and study 2 have common time points 4, 6, 12 and 24 hrs - they could at least be comparable), then are there available methods to do a meta-analysis and compare the common expression profiles. Thanks for your input. Adrian