Gestational hypertension plasma and human umbilical vein endothelial cells: An in vitro study

N. Cester, E. Salvolini, R. A. Rabini, A. L. Tranquilli, G. Zolese, L. Mazzanti

Research output: Contribution to journalArticle

Abstract

Background. The action of plasma from women affected by gestational hypertension (GH) on nitric oxide synthase (NOS) activity in cultured human umbilical vein endothelial cells (HUVECs) was evaluated in the present study, together with the effect on cytosolic calcium, on Na+, K+-ATPase activity and on membrane fluidity. Methods. At 80% confluence, cultured HUVECs were incubated for 3 h at 37°C with fresh culture medium (control samples) or with 20% (v/v) plasma (from five healthy non-pregnant women, five healthy pregnant women and five pregnant women affected by GH). Results. After incubation with GH plasma, we observed a significant reduction in NOS activity, intracellular calcium concentrations and Na+, K+-ATPase activity. Conclusions. The present work gives further support to the hypothesis that a circulating factor in gestational hypertension, possibly produced by the fetoplacental unit, causes dysfunction of the vascular endothelial cells and NO reduction, resulting in a loss of vascular refractoriness to vasoactive agents.

Original languageEnglish
Pages (from-to)989-993
Number of pages5
JournalEuropean Journal of Clinical Investigation
Volume28
Issue number12
DOIs
Publication statusPublished - 1998

Keywords

  • Gestational hypertensive plasma
  • HUVECs
  • Intracellular calcium
  • K-ATPase
  • Na
  • NOS

ASJC Scopus subject areas

  • Medicine(all)

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