CD33 and autoimmune disease: In addition, SPPL2A, CD33, SCIMP, ADAMTS4, APH1B, BZRAP1-AS1, ZNF232, GRN, and CD2AP variants were associated with mean platelet (thrombocyte) volume (an autoimmune disease biomarker), neutrophill count, monocyte count/percentage, and/or white blood cell (leukocyte) count.