Human Reproduction, Vol. 5, No. 3, pp. 250-254, 1990
© 1990 European Society of Human Reproduction and Embryology
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Serum PP14 levels in a patient with Turner's syndrome pregnant after frozen embryo transfer
2University Departments of Obstetrics and Gynaecology Department of Reproductive Physiology St Bartholomew's Hospital Medical College London EC1A 7BE 3University Departments of Obstetrics and Gynaecology Manchester Fertility Services Manchester 4University Department of Pathology St Mary's Hospital Manchester M13 OJH 5University Departments of Obstetrics and Gynaecology and Medicine Salford M6 8HD
Correspondence: 1To whom correspondence should be addressed
Data are presented on serum levels of the pregnancy-associated placental protein (PP14) in an XO mother, pregnant after frozen embryo transfer. Steroid replacement before and during early pregnancy was provided with transdermal oestradiol and vaginal micronized progesterone. Characterization of a pre-treatment cycle indicated a physiological response by the endometrium. The pregnancy was associated with normal maternal blood levels of all hormones considered responsible for maintenance of early gestation but with consistently subnormal serum levels of PP14. Hitherto, PP14 has been believed to be an endometrial protein arising from the decidua during pregnancy, under the influence of ovarian steroids. The findings in this case suggest that other factors are involved in its production, possibly under the control of, or originating from, the maternal ovary.
Key words: serum PP14/Turner's pregnancy
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