Differences in permeability of preterm and term fetal membranes to calcium ions - Preliminary report.

Piotr Pierzyński, Remigiusz Urban, Paweł Kuć, Adam Lemancewicz, Elżbieta Malzahn, Tadeusz Laudański

Journal: Placenta 2017;39():84-6

PMID: 26992679

Full Text on Elsevier Science View on PubMed

Abstract

The metabolic activity of amniochorion contributes to the control of activation of labor-type uterine contractions. The study presents an experimental model of transport of calcium ions across the human amniochorion sampled directly after cesarean section in patients delivering both at term and prematurely. Transmembrane transport of calcium ions was lower in preterm vs. term tissue samples. The differences in permeability were most pronounced in the first 60 min of experiments. The results of the study provide evidence for the existence of an active mechanism of calcium transport which can contribute to regulating the contractility of the uterus.

Address: Medical University of Białystok, Department of Reproduction and Gynaecologic Endocrinology, University Hospital, M. Skłodowskiej - Curie 24a, 15-276 Białystok, Poland.; Medical University of Białystok, Department of Perinatology, University Hospital, M. Skłodowskiej - Curie 24a, 15-276 Białystok, Poland. Electronic address: [email protected].; Medical University of Białystok, Department of Perinatology, University Hospital, M. Skłodowskiej - Curie 24a, 15-276 Białystok, Poland.; Forest Research Institute ul, Park Dyrekcyjny 6, 17-230 Białowieża, Poland.

DOI: 10.1016/j.placenta.2015.07.002

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MeSH Terms: Calcium, Calcium Signaling, Extraembryonic Membranes, Female, Humans, Infant, Newborn, Ions, Obstetric Labor, Premature, Permeability, Pilot Projects, Pregnancy, Premature Birth, Term Birth