Table 2.
Gestation day | 7.5 | 10.5 | 13.5 | 17.5 |
---|---|---|---|---|
Trophoblast giant cells | + | + | + | + |
Spongiotrophoblast | + | + | ++ | |
Labyrinth | + | +/- | - |
The presence (+) or absence (-) of immunohistochemically detected MIF in placental cell populations at different gestational periods as indicated (++, means many cells immunostained, +/-, only a few reactive cells, - no reactivity).