Investigators have used a new sequencing method to identify a group of genes used by the brain's immune cells -- called microglia -- to sense pathogenic organisms, toxins or damaged cells that require their response. Identifying these genes should lead to better understanding of the role of microglia both in normal brains and in neurodegenerative disorders.<img src="http://feeds.feedburner.com/~r/sciencedaily/~4/36bQobNvZcg" height="1" width="1"/>
