D. ZACCHEO

Morphological changes in fixed stromal cells and Hofbauer cells were studied throughout pregnancy in different types of placental chorionic villi by scanning electron microscopy. In the mesenchymal villus the fixed stromal cells were characterized by thin cytoplasmic processes. Hofbauer cells exhibited blebs on their surface. Large sail-like...

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Progesterone at placental tissue concentrations (5-20 micrograms/ml) markedly increases in vitro PMA-stimulated O-2 and H2O2 production by human cultured monocytes. This appears to contrast the well-known suppressive action of the hormone on the other cell mediated defence mechanisms. We suggest that these findings could cast a new light on...

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