31. The region of fibrinoid degeneration where trophoblasts meet decidua is called " Nitabuch's layer ". 32. L-selectin is also present on the surface of human embryo trophoblasts prior to implantation into the uterus. 33. Increased NKB secretions seem to be caused by defective implantation or invasion of the embryo at the trophoblast stage. 34. He cloned, identified, and characterized the temporal expression of trophoblast interferon-t in sheep and cattle. 35. They derive from the trophoblast , which is the fetal side of the interface between maternal and fetal tissue. 36. Calponin 3 is also present in embryonic trophoblasts and myoblasts with functions in cell fusion during embryonic development and myogenesis 37. In addition, cytotrophoblast in the tips of villi can differentiate into another type of trophoblast called the extravillous trophoblast. 38. In addition, cytotrophoblast in the tips of villi can differentiate into another type of trophoblast called the extravillous trophoblast . 39. However, ultimately, the inner cell mass, inside the trophoblast layer, is aligned closest to the decidua. 40. Bok-P may be the cause for trophoblast cell death in pre-eclampsia, a dangerous pregnancy complication.