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Human Reproduction, Vol 12, 383-386, Copyright © 1997 by Oxford University Press

ARTICLES

Proliferative cell activity in correlation to human chorionic gonadotrophin release of trophoblast tissue of tubal pregnancy

H Kiss, M Klein, C Egarter, AH Graf, G Hacker, W Hutter, K Czerwenka and P Husslein
Department of Obstetrics and Gynecology, University of Vienna, Austria.

The degree to which the relative rise of serum human chorionic gonadotrophin (HCG) concentration was related to proliferative cell activity and the biological vitality of tubal pregnancy was investigated. Salpingectomy was performed in 15 patients diagnosed as having non-ruptured tubal pregnancy. Serum HCG was evaluated twice preoperatively, with a 48-h time interval. Proliferative cell activity was measured through the use of the cell proliferation marker 'Ki-67'. A significant correlation between the relative increase in HCG over a 48-h period, independent of the initial serum HCG value, and the biological cell activity of the trophoblast was shown. Furthermore, it became evident that cell activity was also correlated to the intracellular HCG of the trophoblast. The relative increase in serum HCG over a period of 48 h can serve as a parameter for the biological activity of the trophoblast in tubal pregnancies.
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