Circulating levels of pro-inflammatory cytokines IL-6 (P = 0.0125) and IL-17A (P = 0.009) were significantly higher in GDM obese patients compared to NGT non-obese, while circulating levels of IL-12p70 (P = 0.007) were significantly increased in GDM non-obese, compared to NGT (Fig. 1A–C). Here, IL6 is linked to gestational diabetes.