Scientists have developed a new tool to determine the inherent biological differences between individuals -- paving the way for personalised medicine tailored to the specific profile of individual patients. Johan Auwerx of Switzerland's cole polytechnique f d rale de Lausanne (EPFL) and Ruedi Aebersold of ETH Zurich the Swiss Federal Institute of Technology set out to overcome one of the biggest obstacles in successfully treating metabolic disorders such as diabetes obesity and fatty liver disease which depends on the variation in the way patients respond to medication. Working with mouse models the researchers successfully connected the variation between individuals' genomes