Fig 1: CD276 gene (A) and protein (B) expression levels in endometrial biopsies. (A) Fold change of CD276 mRNA in endometrium tissue samples from the RPL and the control group. (B) Fold change of CD276 protein in endometrium tissue samples from the RPL and the control group. Data are presented as mean ± SE. Significance was calculated using Student’s t-test (* p < 0.05). RPL denotes recurrent pregnancy loss; CTRL-END: endometrial tissue from the control group; RPL-END: endometrial tissue from the RPL group.