two proteins , pregnancy-associated endometrial alpha 1- and alpha 2-globulins ( alpha 1- and alpha 2-peg ) , synthesized de novo and secreted by the human endometrium and decidua during pregnancy , have been demonstrated to be immunochemically related to the soluble placental proteins pp12 and pp14 isolated from term placenta .
C0014180
endometrium
C0011106
decidua