Since under stress, women with GDM had a higher pressor response and a greater transduction of SNA to the vasculature we could speculate that women with GDM may have an increase in the sensitivity or number of the vascular catecholamines receptors and thus, their response was greater in comparison to normotensive, euglycemic pregnant women (Davidge & McLaughlin, 1992). Here, ADRB2 is linked to gestational diabetes.