Enzymhistochemische Untersuchungen an reifen menschlichen Placentazotten

Prognostic value of combined assay of total estrogen and pregnanediol in 24 hour urine. Experience with 500 pregnancies in an endocrine surveillance program during the second trimester

“…It is known that the placenta has considerably capabüities for compensation i.e. morphologically in particular the ability of the new formation of endocrine active syncytiotrophoblast from LANGHANS' cells [5,6,7]. Possibly this finds an endocrine expression in (insufficient syncytiotrophoblast) later becomes normal or tends towards normalization äs has been observed by us [18].…”

Some New Findings about Hofbauer Cells in the Chorionic Villi of the Human Placenta

“…A number of investigators pointed out that these cells have a structural and histochemica! similarity with normal mature tissue macrophages and function as phagocytes, and that they also play an active role in water and electrolyte transportation within the chorionic villi core [Wislocki and Padykula, 1961;Bourne, 1962: Rhodin andTerzakis, 1962;Panigel and Anh, 1964;Benirschke and Driscoll, 1967;Badarau, 1969;Enders and King, 1970;Vacek, 1970;Kaufmann et al, 1974;Castellucci et al, 1980bCastellucci et al, . c, 1982,…”

“…The fetal proteins return to the fetal circulation without crossing the placental barrier. We believed that the Hofbauer cells take an active role in this transporta tion, no matter whether it depends upon the trophoblas tic layers [Kaufmann et al, 1974] or on an intrastromal channel system [ finders and King, 1970;Enders and Wimsatt, 1971].…”

Original articles

“…In histochemical examinations with an enzyme histochemical semi-thin layer technique [2] we were able to demonstrate altered activities of enzyme groups following maternal glucose therapy [7]. We interpreted this äs morphologic and qualitative evidence of the increase in mature syncytium and LANGHANS cells [8].…”