Correlation between first trimester fetal bone length and maternal serum pregnancy-associated plasma protein-A (PAPP-A)

Federico Prefumo, Silvana Canini, Angela Crovo, Daniela Pastorino, Pier Luigi Venturini, Pierangela De Biasio

Research output: Contribution to journalArticlepeer-review

Abstract

Backgound: Pregnancy-associated plasma protein-A (PAPP-A) is produced by the embryo and placenta during pregnancy, and its maternal serum concentrations are related to subsequent fetal growth. Evidence from animal models and in vitro experiments suggests that PAPP-A is particularly involved in the regulation of bone development. The aim of this study was to assess the correlation between late first trimester fetal bone length and maternal serum levels of PAPP-A. Methods: In a cr oss-sectional observational study, ultrasound measurements of fetal long bones and fluorimetric immunoassays for maternal serum PAPP-A were performed in 514 singleton pregnancies at 10-14 weeks of gestation. Results: There were 501 uncomplicated pregnan cies. There were significant correlations between PAPP-A values and length of humerus, femur and tibia [ r values 0.12 (P = 0.01), 0.11 (P = 0.01) and 0.10 (P = 0.03), respectively]. The association with the length of ulna and foot did not reach statistical significance (r values 0.08 and -0.03, respectively). Conclusions: Maternal serum PAPP-A levels a t 10-14 weeks of gestation are significantly associated with the length of fetal long bones such as humerus, femur and tibia. This provides further evidence that PAPP-A may be involved in the regulation of bone development.

Original languageEnglish
Pages (from-to)3019-3021
Number of pages3
JournalHuman Reproduction
Volume21
Issue number11
DOIs
Publication statusPublished - Nov 2006

Keywords

  • Bone growth
  • Bone length
  • Fetus
  • PAPP-A

ASJC Scopus subject areas

  • Physiology
  • Developmental Biology
  • Obstetrics and Gynaecology
  • Reproductive Medicine

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