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- W2894097189 abstract "Interleukin-1 beta (IL-1β) is a cytokine mediator of perinatal brain injury. The effect of sub-chronic systemic IL-1β exposure in perinatal and offspring outcomes is unclear. The aim of this study was to examine the effects of maternal IL-1β exposure on pregnancy and offspring outcomes. At E15, CD1 dams were allocated to receive intraperitoneal injection of phosphate buffered saline or mouse recombinant IL-1β (1 mcg) for four consecutive days. We analyzed pup survival and neurobehavioral status. At E18, placental H&E staining and fetal brain Nissl staining was performed. Placental gene expression was analyzed by qPCR and T cell infiltration was analyzed by flow cytometry. Effects of inflammation on feto-placental blood flow were analyzed by Doppler ultrasonography. IL-1β decreased pup survival (P < .0001) and adversely affected offspring performance on neurodevelopmental tests (P < .05). Placentas of exposed dams exhibited significant thinning of maternal and fetal sides, and fetal brain exhibited cortical thinning. Placental qPCR analysis revealed significant upregulation of NFκB2 (P = .0021) and CXCL11 (P = .0401). While maternal IL-1β exposure did not affect feto-placental blood flow, placental flow cytometry showed an increase in placental infiltration of CD4+ T cells at 24 h post-injection (hpi, P < .0001) and CD8+ T cells at 72 hpi (P = .0217). Maternal sub-chronic, systemic inflammation with IL-1β decreased pup survival and played a key role in perinatal brain injury. The mechanisms behind these outcomes may involve immune system activation and alterations in placental T cell trafficking." @default.
- W2894097189 created "2018-10-05" @default.
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- W2894097189 date "2019-01-01" @default.
- W2894097189 modified "2023-10-17" @default.
- W2894097189 title "Increased placental T cell trafficking results in adverse neurobehavioral outcomes in offspring exposed to sub-chronic maternal inflammation" @default.
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- W2894097189 doi "https://doi.org/10.1016/j.bbi.2018.09.025" @default.
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