NR3C1 and allergic asthma: In a series of Australian studies on the expression of multiple GR isoforms in different species with a total GR antibody, multiple known GR isoforms (such as GRα-A, GRα-C, GRα-D) and some unknown GR isoforms were identified in the placenta of humans, guinea pigs, mice and a sheep model of maternal allergic asthma [16, 24, 33, 34].