The AA homozygotes and A allele carriers of the HNF1A-AS1 rs7953249 polymorphism had lower concentrations of GP28 (A3G3S3), GP30 (A3G3S3) and GP37 (A4G4S4) plasma N-glycans compared to GG homozygotes and G allele carriers in the group of patients with PTSD but not in the control group (Table 4, Figure 3 and Figure 4). Here, HNF1A is linked to post-traumatic stress disorder.