eLife assessment
This is a useful study that shows changes in the chromatin landscape of GABAergic neurons in induced pluripotent stem cells (iPSCs) derived from both Dravet Syndrome (DS) patients and healthy donors. The strength of the evidence is currently incomplete because the authors compared iPSCs from different individuals, rather than isogenic controls, and they did not examine the expression of the gene and encoded protein (SCN1A or Nav1.1) that are thought to be responsible for the majority of DS cases in these iPSCs. The work would be of interest to scientists who study development, developmental disorders, and epigenetic contributions to disease.