An important paper in PLoS One was published last month by Psychogios et al. that details a huge effort that yielded the most comprehensive characterization of the human serum metabolome yet.  I recommend reading the paper if you are casually interested in this area like me, as the intro provides a nice background and context. Briefly, searchable e-databases for metabolomics has lagged behind other omics areas until recently, but there still wasn't an attempt to identify the majority of compounds Read more [...]