Acute intravenous exposure to silver nanoparticles during pregnancy induces particle size and vehicle dependent changes in vascular tissue contractility in Sprague Dawley rats

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dc.contributor.authorVidanapathirana, A.
dc.contributor.authorThompson, L.
dc.contributor.authorHerco, M.
dc.contributor.authorOdom, J.
dc.contributor.authorSumner, S.
dc.contributor.authorFennell, T.
dc.contributor.authorBrown, J.
dc.contributor.authorWingard, C.
dc.date.issued2018
dc.description.abstractThe use of silver nanoparticles (AgNP) raises safety concerns during susceptible life stages such as pregnancy. We hypothesized that acute intravenous exposure to AgNP during late stages of pregnancy will increase vascular tissue contractility, potentially contributing to alterations in fetal growth. Sprague Dawley rats were exposed to a single dose of PVP or Citrate stabilized 20 or 110nm AgNP (700μg/kg). Differential vascular responses and EC50 values were observed in myographic studies in uterine, mesenteric arteries and thoracic aortic segments, 24h post-exposure. Reciprocal responses were observed in aortic and uterine vessels following PVP stabilized AgNP with an increased force of contraction in uterine artery and increased relaxation responses in aorta. Citrate stabilized AgNP exposure increased contractile force in both uterine and aortic vessels. Intravenous AgNP exposure during pregnancy displayed particle size and vehicle dependent moderate changes in vascular tissue contractility, potentially influencing fetal blood supply.
dc.description.statementofresponsibilityA. K. Vidanapathirana, L. C. Thompson, M. Herco, J. Odom, S. J. Sumner, T. R. Fennell, J. M. Brown, C.J. Wingard
dc.identifier.citationReproductive Toxicology, 2018; 75:10-22
dc.identifier.doi10.1016/j.reprotox.2017.11.002
dc.identifier.issn0890-6238
dc.identifier.issn1873-1708
dc.identifier.orcidVidanapathirana, A. [0000-0003-0126-799X]
dc.identifier.urihttp://hdl.handle.net/2440/119054
dc.language.isoen
dc.publisherElsevier
dc.rights© 2017 Elsevier Inc. All rights reserved.
dc.source.urihttps://doi.org/10.1016/j.reprotox.2017.11.002
dc.subjectSilver nanoparticles; pregnancy; nanotoxicology; thoracic aorta; mesenteric artery; uterine artery; wire myography
dc.titleAcute intravenous exposure to silver nanoparticles during pregnancy induces particle size and vehicle dependent changes in vascular tissue contractility in Sprague Dawley rats
dc.typeJournal article
pubs.publication-statusPublished

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