Peer-Reviewed Journal Details
Mandatory Fields
Straley ME, Togher KL, Nolan AM, Kenny LC, O'Keeffe GW
2014
August
Placenta
LPS alters placental inflammatory and endocrine mediators and inhibits fetal neurite growth in affected offspring during late gestation
Validated
Optional Fields
Maternal infection Placenta Pregnancy LPS Neuron 11-BETA-HYDROXYSTEROID DEHYDROGENASE TYPE-2 MESSENGER-RIBONUCLEIC-ACID RAT PLACENTA GLUCOCORTICOID EXPOSURE PRENATAL INFECTION MATERNAL INFECTION IMMUNE ACTIVATION BRAIN-DEVELOPMENT ANIMAL-MODELS EXPRESSION
35
533
538
Introduction: During pregnancy, maternal infection at different stages of gestation increases the risk of developing several psychiatric and neurological disorders later in life for affected offspring. As placental health is intrinsically linked to neurodevelopmental outcome, maternal infection may adversely affect the placenta at or before the gestational stages it affects fetal neurodevelopment. Here we examined this premise.Methods: Pregnant-Sprague Dawley rats were administered saline or lipopolysaccharide by intraperitoneal injection on embryonic days 12-18. We then examined a number of key placental inflammatory and endocrine mediators, along with fetal, birth and neuronal characteristics at different stages of development.Results: Maternal exposure to lipopolysaccharide at later gestational ages significantly increased pro-inflammatory IL-1 beta expression and reduced placental HSD11B2 expression. This was accompanied by a reduction in placental weight and embryo number without an effect on embryo weight or crown-rump length. In utero lipopolysaccharide exposure at later gestational ages also impaired the growth of neurons from affected offspring.Discussion: These data show that maternal infection at later gestational ages modifies placental inflammatory and endocrine mediators that may adversely affect the growth of developing neurons in affected offspring. (C) 2014 Elsevier Ltd. All rights reserved.
10.1016/j.placenta.2014.06.001
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