1: BMC Med Genomics. 2009 Jun 25;2:38. Links A gene signature for post-infectious chronic fatigue syndrome. What genes did this study find that were either overactive or under active in ME/CFS? It's encouraging that the study highlighted some areas researchers are interested in: Oxidative Stress genes were acting abnormally. They suggested that an inflammatory process is occurring. We're probably going to hear more about NF-kB in the future. De DeMeileir was interested in it and Dr. Maes is focused on it. Increased Rates of Cell Suicide - Why are more cells than usual possibly killing themselves? No one knows but it could have connections to oxidative stress - since themselves get to a certain damage point they essentially commit suicide. The increased macrophage activation fits with high rates cell suicide since they clean up the pieces. Immune problems - there are several interesting things here. Note the emphasis on the innate immune system. - or the early warning system. This system is often overlooked but Dr. Peterson and Dr. Klimas think it is a key system in ME/CFS. Note though that these authors believe that ME/CFS patients at most have 'subtle' immune dysfunction. This is not a cut and dried subject. It's not like these huge immune deficiencies are staring researchers in the face. It was good to see natural killer cells show up and the Th1 to Th2 shift mentioned. Interestingly immune profile is very similar to one found in Post-Lyme disease. Their conclusions: a significant yet subtle perturbation of function regards to the immune issues. (Significant yet subtle....?). They found three genes in common with Dr. Kerr's study which is encouraging actually as few gene expression studies have found many genes in common - a real problem.