The aim of this study was to determine the association of rs7953249 polymorphism, located in the HNF1A antisense RNA 1 gene (HNF1A-AS1), and rs735396 polymorphism, located in intron 9 of the HNF1A gene, and their haplotype block with the levels of plasma and immunoglobulin G (IgG) N-glycans in a sample of 555 male patients, including PTSD patients and healthy individuals. Here, HNF1A is linked to post-traumatic stress disorder.