An inconvenient truth – segregation of monogenic variants in small families

Climate change. In the era of exome and genome sequencing, it might be worthwhile revisiting the merit of family studies in epilepsy research. Seizure disorders are known to have a highly diverse genetic architecture. When singleton studies identify a single, unique gene finding, this discovery usually does not provide much information about the potential causal role of the variant given the high degree of genomic noise. In contrast, family studies are usually considered more robust, as segregation of variants can be traced. Here is the inconvenient truth: unless the family is very large, segregation of possibly monogenic variants adds little information given the vast amount of variants present in our genomes. Continue reading

Navigating the epilepsiome – live from Tübingen

2D. I am writing this post during our EuroEPINOMICS meeting in Tübingen listening to presentation from CoGIE, the EuroEPINOMICS project working on IGE/GGE and Rolandic Epilepsies and RES, the project on rare epilepsies. At some point during the afternoon, I made my selection for the best graph during the presentations today – an overview of the conservation space of epilepsy genes. Continue reading

Invitation for the EuroEPINOMICS General Assembly in Tübingen

We need to talk. Much has happened in EuroEPINOMICS land ever since the launch of this Eurocores activity in 2011. Back then, exomes were still a realistic, but somewhat remote possibility and the complexity and ambiguity of the human genome was only beginning to be revealed. Now, roughly two years later, we have witnessed major breakthroughs in understanding epilepsy through genetic findings and we have generated large datasets on common and rare epilepsy syndromes that require an unanticipated effort for data mining and sharing. The EuroEPINOMICS Consortium will hold its 2013 General Assembly in Tübingen, Germany, from 30.10-01.11.2013. This meeting will connect all four Collaborative Research Projects and will be the central meeting of this year to jointly discuss our current activities and plans for the future. Continue reading