Der ?dystrophische? Kalkgehalt der normalen menschlichen Placenta

Calcification of the Placenta

“…The low incidence of calcification in the toxaemic group is at variance with the results obtained by chemical analysis of the calcium content of the placenta. Thus Mischel (1958) and Einbrodt et al (1962) found chemically an increased calcium content in the toxaemic placenta. Jeacock (1 963), however, found no difference in the calcium concentration between normal and toxaemic placentae after 36 weeks of gestation.…”

“…The aim of this study was to assess the significance of placental calcification of the type and degree that is easily noted during routine clinical and pathological practice, and hence only simple methods of examination were utilized. It has been pointed out (Einbrodt, Geller and Born, 1962) that chemical analysis of the placenta estimates not only the easily visible or "dystrophic" calcification (Schonig, 1928), but also the structural calcium of the tissues, the calcium of the intracellular fluid and transport calcium en route from mother to foetus. Such a technique is therefore not suitable for the purpose of detecting the significance of visible calcium.…”