Naslov
Histoenzymatic and immunocytochemical characteristics of extravillous trophoblast cells of placental basal plate as parameter of their function in hypertensive pregnancy

Autori
Lež, Cvjetko ; Pirkić, Ahmed ; Buković, Damir ; Fureš, Rajko ; Đelmiš, Josip ; Ivanišević, Marina ; Hodek, Branko

Izvornik
Collegium antropologicum (0350-6134) 26 (2002), 1; 273-283

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
Acetyl-beta-glucosaminidase; Leucine aminopeptidase; Chorionic villi; Angiotensin-II; Preeclampsia; Enzyme; Excretion; Adhesion; Women; Renin.

Sažetak
An intense activity of enzymes which actively participate in the renin-angiotensin-aldosterone system was shown in extravillous trophoblast cells which are involved in the performing of spiral arteries into uteroplacental vessels. The hydrolase activity in villous trophoblast underwent important variations, but it was constant in cells of the extravillous trophoblast. Activity of lysosomal hydrolases, of leucine aminopeptidase and N-acetyl glucosaminidase type, was markedly positive in X-cells, while negative in the villous trophoblast. Beta glucuronidase activity has shown moderate activity in cells of extravillous trophoblast, while in villous trophoblast it was weakly emphasized or negative. Intense activity of prostagandin E2 dehydrogenase in the way of strongly emphasized microsomal reaction was noted exclusively in extravillous cells of basal plate, especially in perivascular cell groupings. Within all examined enzymes activities, only the membranous activity of alkaline phosphatase was of the same intensity in cells of extravillous trophoblast. Lacking of penetration of these cells into the spiral arteries wall in EPH-gestosis, which also means loss of their close contact with the blood of a pregnant, implicates the practical meaning of these observations.

Izvorni jezik
Engleski

Znanstvena područja
Kliničke medicinske znanosti

POVEZANOST RADA