caa a22 4500 475774906 CHVBK 20180406123628.0 cr unu---uuuuu 170329e20000501xx s 000 0 eng 10.1007/s004180000144 doi (NATIONALLICENCE)springer-10.1007/s004180000144 Enzyme-histochemically detectable glucose-6-phosphatase is present in chorion laeve trophoblasts of human fetal membranes [Elektronische Daten] [Shigeki Matsubara, Ikuo Sato] Abstract. : The purpose of the present study was to demonstrate the presence of glucose-6-phosphatase (G6Pase) in fetal membranes from various gestational ages (20-40weeks of gestation). Ultrastructural enzyme-histochemical analysis of G6Pase was performed using cerium and lead as capturing agents. Precipitates indicating G6Pase activity were present mainly in the endoplasmic reticulum and partly in the nuclear envelope of chorion laeve trophoblasts, but absent in amniotic epithelial cells. Stringent histochemical control experiments performed ensured specific detection of G6Pase activity. The results indicate that histochemically detectable G6Pase is present in the chorion laeve trophoblasts of human fetal membranes. This enzyme may have some physiological significance in carbohydrate metabolism in human fetal membranes and regulation of amniotic fluid glucose concentration. Springer-Verlag, 2000 Trophoblast Glucose-6-phosphatase Glucose Amniotic fluid Fetal membrane nationallicence Matsubara Shigeki Department of Obstetrics and Gynecology, Jichi Medical School, 3311-1, Minamikawachi-machi, Kawachi-gun, Tochigi 329-0498, Japan aut Sato Ikuo Department of Obstetrics and Gynecology, Jichi Medical School, 3311-1, Minamikawachi-machi, Kawachi-gun, Tochigi 329-0498, Japan aut https://doi.org/10.1007/s004180000144 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s004180000144 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Matsubara Shigeki Department of Obstetrics and Gynecology, Jichi Medical School, 3311-1, Minamikawachi-machi, Kawachi-gun, Tochigi 329-0498, Japan aut NATIONALLICENCE 700 1- Sato Ikuo Department of Obstetrics and Gynecology, Jichi Medical School, 3311-1, Minamikawachi-machi, Kawachi-gun, Tochigi 329-0498, Japan aut Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer