To investigate the association of FABP4 with the development of autoimmune diabetes, we recruited 92 patients with new-onset type 1 diabetes and their FDRs (n = 93), including islet autoantibody-negative (Ab−FDRs, n = 78) and islet autoantibody-positive (Ab+FDRs, n =15), as well as sex-matched healthy control subjects (n = 102) (Table 1). This evidence concerns the gene FABP4 and type 1 diabetes mellitus.