Differential expression of vascular endothelial growth factor angiogenic factors in different endometrial compartments in women who have an elevated progesterone level before oocyte retrieval, during in vitro fertilization–embryo transfer treatment  Xiaoyan Chen, M. Phil., Xiaoying Jin, M.D., Liu Liu, M.D., Chi Wai Man, Ph.D., Jin Huang, Ph.D., Chi Chiu Wang, Ph.D., Songying Zhang, M.D., Ph.D., Tin Chiu Li, M.D., Ph.D.  Fertility and Sterility  Volume 104, Issue 4, Pages 1030-1036 (October 2015) DOI: 10.1016/j.fertnstert.2015.06.021 Copyright © 2015 American Society for Reproductive Medicine Terms and Conditions

Figure 1 Expression of VEGF-A in the endometrium, from (A) a woman with an elevated P level, and (B) a woman with a normal P level. Expression of VEGF-C in the endometrium from (C) a woman with an elevated P level, and (D) a woman with a normal P level. Expression of PLGF in the endometrium from (E) a woman with an elevated P level, and (F) a woman with a normal P level. (G) Negative control. Magnification = ×400. Scale bar = 50 μm. GE = glandular epithelium; LE = luminal epithelium; P = progesterone; PLGF = placental growth factor; SC = stromal cell; VEGF = vascular endothelial growth factor. Fertility and Sterility 2015 104, 1030-1036DOI: (10.1016/j.fertnstert.2015.06.021) Copyright © 2015 American Society for Reproductive Medicine Terms and Conditions