Vascular endothelial growth factor activation of intramembranous absorption: A critical pathway for amniotic fluid volume regulation

Cecilia Y. Cheung

Research output: Contribution to journalReview article

39 Scopus citations

Abstract

OBJECTIVE: The purpose of this review is to propose a critical role for vascular endothelial growth factor (VEGF) in mediating the transfer of amniotic fluid from the amniotic compartment through the fetal membranes and fetal surface of the placenta into fetal blood. METHODS: Experimental findings in humans and animal models on the action of VEGF in mediating fluid transfer are reviewed and interpreted in order to postulate a proposed mechanism for VEGF regulation of amniotic fluid absorption through the fetal membranes and placenta. RESULTS: Recent scientific advances suggest that up-regulation of VEGF gene expression in the amnion and chorion is associated with increased transfer of amniotic fluid into fetal blood. The possible mechanisms of action for VEGF appear to involve regulation of intramembranous blood vessel proliferation and membrane transport via passive permeation as well as nonpassive transcytotic vesicular movement of fluid. CONCLUSION: Currently evolving concepts suggest that amniotic fluid volume is regulated through modulation of the rate of intramembranous absorption of amniotic fluid by both passive and nonpassive mechanisms. The permeability factor VEGF appears to be a critical regulator of amniotic fluid transport in the fetal membranes.

Original languageEnglish (US)
Pages (from-to)63-74
Number of pages12
JournalJournal of the Society for Gynecologic Investigation
Volume11
Issue number2
DOIs
StatePublished - Feb 1 2004

Keywords

  • Amnion
  • Amniotic fluid
  • Chorion
  • Growth factor
  • Placenta
  • Sheep

ASJC Scopus subject areas

  • Obstetrics and Gynecology

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