In the review article “The innate immune system in Alzheimer's disease,” available at the following link: http://www.hindawi.com/journals/ijcb/2013/576383/, A. Boutajangout and T. Wisniewski focus on the potential roles of the triggering receptor expressed on myeloid cells 2 protein (TREM2) and Toll-like receptors (TLRs) in AD. The gene discussed is TREM2; the disease is Alzheimer disease.