[Show abstract][Hide abstract] ABSTRACT: To evaluate the capacity of vascular endothelial growth factor (VEGF), pregnancy-associated plasma protein-A (PAPP-A), and progesterone (P) to discriminate ectopic pregnancies (EP) from nonectopic ones.
Prospective, case-controlled study.
Tertiary care center.
Twenty-nine women with EP, 29 women with normal intrauterine pregnancy (nIUP), and 28 women with spontaneous miscarriage, all matched for gestational age.
Serum samples were obtained.
Serum concentrations of VEGF, PAPP-A, and P were measured.
Serum VEGF concentrations did not show statistically significant differences among women with EP (median, 55.24 pg/mL; range, 0.20-179.24), spontaneous miscarriages (median, 26.24 pg/mL; range, 0.22-365.24), and nIUP (median, 43.24 pg/mL; range, 0.86-101.24). The median level of P was significantly increased in the nIUP group (20.58 ng/mL; range, 13.9-37.04) compared with the other two groups, but there was no statistically significant difference between the spontaneous miscarriage and EP groups. Like P, PAPP-A values were also significantly higher in the nIUP group than in the other two groups, but the difference between PAPP-A values in the EP and spontaneous abortion groups was statistically insignificant.
VEGF, PAPP-A, and P cannot be used to diagnose EPs, but PAPP-A and P can at least be used to differentiate abnormal pregnancies.
No preview · Article · May 2008 · Fertility and sterility
[Show abstract][Hide abstract] ABSTRACT: Neurokinin (NK) B has been recently demonstrated to be secreted by the placenta in preeclampsia suggesting it may modulate pathophysiological events of the disease. The aim of this study was to investigate whether NKB is the circulating factor associated with preeclampsia or not. In 22 preeclamptic and normotensive pregnant women, the peripheral and umbilical cord blood NKB levels were measured by radioimmunoassay. The NKB levels in women with preeclampsia were 0.70 (0.53-0.92) nmol/L in peripheral blood and 1.92 (1.42-2.35) nmol/L in umbilical cord blood. In normotensive pregnant women, NKB levels were 0.43 (0.29-0.61) nmol/L and 0.14 (0.07-0.33), respectively. Significantly higher levels of NKB were measured in preeclamptic women compared with normotensive pregnant women in umbilical cord blood. These results suggest that NKB enters both fetal and maternal circulation and may modulate fetoplacental hemodynamics.
No preview · Article · Feb 2007 · Journal of Perinatal Medicine