TREM2 and frontotemporal dementia: The previous studies reveal that some other genes are linked to FTD, including the VCP, CHCHD10, TBK1, CHMP2B, TARDBP, SQSTM1, FUS, UBQLN2, OPTN, TREM2, CYLD, PRKAR1B, TIA1, TUBA4A, CCNF, DCTN1, HNRNPA2B1, and HNRNPA1 [1, 2].