The LRRK2 locus includes SNPs that nominate genome-wide associations to several inflammatory disorders (Crohn’s disease [rs11175593_T] [22], inflammatory bowel disease [rs4768236_C] [37], pediatric immune diseases [rs17466626_G] [23], and platelet count [rs529898481_G] [45]). Here, LRRK2 is linked to Crohn disease.