HISTOCHEMISCHE UNTERSUCHUNGEN ÜBER DIE PRODUKTIONSORTE DER CHORIONGONADOTROPINE

Abstract
A total of 110 human placentas obtained from fetuses of various gestation ages were studied by histochemical methods specific for mucopolysaccharides. The Langhans cell layer of the small villi showed only a faint positive reaction; larger amounts of mucopolysaccharides were observed in trophoblastic cells of young chorionic villi, of islands, of the basal layer and of the cell columns. These results suggest that chorionic gonadotropin is produced predominantly in trophoblastic cells of the basal layer and cell columns.