Phosphonate esterase activity in blood serum during early pregnancy
Labadie, M.; Gil, A.; Laplaud, P.M.
Journal de Gynecologie Obstetrique et Biologie de la Reproduction 10(8): 771-774
1981
ISSN/ISBN: 0368-2315 PMID: 6279722 Document Number: 179081
The levels of blood serum phosphonate esterase activity were estimated in nonpregnant women who were aged between 17 and 48 yr and for comparison in 5 series of women who were presumed to be pregnant and who had amenorrhoea of 4, 5, 6, 7 and 8 wk respectively. A significant rise in serum enzyme activity was found from the 4th wk onwards, with a mean rise of 70% as compared with the women who were not pregnant. The rise in phosphonate esterase activity in blood serum can be used as a biological enzyme test from early pregnancy onwards.