Similarly, secretion of gp130 in uterine flushing was significantly lower in the infertile group (mean: 51.5 ± 27.5, range; 25–140 pg/ml) than in the fertile group (mean: 182 ± 77, range; 95–370 pg/ml) (P < 0.001; Table 2). This evidence concerns the gene IL6ST and Infertility.