OBJECTIVE: The purpose of this study was to determine whether elevated midtrimester serum placental alkaline phosphatase levels are predictive of preterm delivery. STUDY DESIGN: By use of banked serum specimens from a sample of women who had received maternal serum alpha-fetoprotein screening, placental alkaline phosphatase values for multiples of the median were obtained from 270 mothers who had experienced a preterm delivery and from 1598 mothers of term, appropriate-for-gestational-age infants. Specimens were analyzed for placental alkaline phosphatase by means of a monoclonal antibody enzyme-linked immunosorbent assay. Logistic regression was used to determine whether placental alkaline phosphatase was associated with preterm birth, while potential confounders were controlled for. RESULTS: Women with placental alkaline phosphatase levels > or = 2.0 multiples of the median were significantly more likely to be delivered of a preterm infant in the current pregnancy compared with women with levels < 2.0 multiples of the median (odds ratio 2.9, 95% confidence interval 2.1 to 3.9). The likelihood of preterm birth increased significantly with higher multiples of the median (p < 0.001). CONCLUSION: Women with elevated placental alkaline phosphatase levels are at increased risk for preterm delivery. Additional studies are needed to evaluate the clinical utility of placental alkaline phosphatase testing as a means of identifying mothers at risk for preterm birth.
OBJECTIVE: The purpose of this study was to determine whether elevated midtrimester serum placental alkaline phosphatase levels are predictive of preterm delivery. STUDY DESIGN: By use of banked serum specimens from a sample of women who had received maternal serum alpha-fetoprotein screening, placental alkaline phosphatase values for multiples of the median were obtained from 270 mothers who had experienced a preterm delivery and from 1598 mothers of term, appropriate-for-gestational-age infants. Specimens were analyzed for placental alkaline phosphatase by means of a monoclonal antibody enzyme-linked immunosorbent assay. Logistic regression was used to determine whether placental alkaline phosphatase was associated with preterm birth, while potential confounders were controlled for. RESULTS:Women with placental alkaline phosphatase levels > or = 2.0 multiples of the median were significantly more likely to be delivered of a preterm infant in the current pregnancy compared with women with levels < 2.0 multiples of the median (odds ratio 2.9, 95% confidence interval 2.1 to 3.9). The likelihood of preterm birth increased significantly with higher multiples of the median (p < 0.001). CONCLUSION:Women with elevated placental alkaline phosphatase levels are at increased risk for preterm delivery. Additional studies are needed to evaluate the clinical utility of placental alkaline phosphatase testing as a means of identifying mothers at risk for preterm birth.
Authors: A Boronkai; N G Than; R Magenheim; S Bellyei; A Szigeti; P Deres; B Hargitai; B Sumegi; Z Papp; J Rigo Journal: J Clin Pathol Date: 2005-01 Impact factor: 3.411
Authors: Winston Koh; Wenying Pan; Charles Gawad; H Christina Fan; Geoffrey A Kerchner; Tony Wyss-Coray; Yair J Blumenfeld; Yasser Y El-Sayed; Stephen R Quake Journal: Proc Natl Acad Sci U S A Date: 2014-05-05 Impact factor: 11.205
Authors: Sonja Zeilinger; Brigitte Kühnel; Norman Klopp; Hansjörg Baurecht; Anja Kleinschmidt; Christian Gieger; Stephan Weidinger; Eva Lattka; Jerzy Adamski; Annette Peters; Konstantin Strauch; Melanie Waldenberger; Thomas Illig Journal: PLoS One Date: 2013-05-17 Impact factor: 3.240