Altered offspring neurodevelopment in an arginine vasopressin preeclampsia model
Open Access
- 28 January 2021
- journal article
- research article
- Published by Springer Science and Business Media LLC in Translational Psychiatry
- Vol. 11 (1), 1-14
- https://doi.org/10.1038/s41398-021-01205-0
Abstract
Preeclampsia is a severe gestational hypertensive condition linked to child neuropsychiatric disorders, although underlying mechanisms are unclear. We used a recently developed, clinically relevant animal model of preeclampsia to assess offspring. C57BL/6J mouse dams were chronically infused with arginine vasopressin (AVP) or saline (24 ng/h) throughout pregnancy. Adult offspring were behaviorally tested (Y-maze, open field, rotarod, social approach, and elevated plus maze). Offspring brain was assessed histologically and by RNA sequencing. Preeclampsia-exposed adult males exhibited increased anxiety-like behavior and social approach while adult females exhibited impaired procedural learning. Adult AVP-exposed males had reduced total neocortical volume. Adult AVP-exposed females had increased caudate–putamen volume, increased caudate–putamen cell number, and decreased excitatory synapse density in hippocampal dentate gyrus (DG), CA1, and CA3. At postnatal day 7 (P7), AVP-exposed male and female offspring both had smaller neocortex. At P7, AVP-exposed males also had smaller caudate–putamen volume, while females had increased caudate–putamen volume relative to neocortical size. Similar to P7, E18 AVP-exposed offspring had smaller dorsal forebrain, mainly in reduced intermediate, subventricular, and ventricular zone volume, particularly in males. Decreased volume was not accounted for by cell size or cerebrovascular vessel diameter changes. E18 cortical RNAseq revealed 49 differentially-expressed genes in male AVP-exposed offspring, over-representing cytoplasmic translation processes. In females, 31 genes were differentially-expressed, over-representing collagen-related and epithelial regulation pathways. Gene expression changes in E18 AVP-exposed placenta indicated potential underlying mechanisms. Deficits in behavior and forebrain development in this AVP-based preeclampsia model were distinctly different in males and females, implicating different neurobiological bases.Funding Information
- U.S. Department of Health & Human Services | NIH | National Institute of Neurological Disorders and Stroke (T32-NS007421)
- U.S. Department of Health & Human Services | National Institutes of Health (3UL1TR 002537-03W1, HD089940, HD000849, RR024980, 3UL1TR002537, 3UL1TR002537, HL084207, HL134850)
- American Heart Association (19IPLOI34760288, 16POST30960016, 18SCG34350001, 19IPLOI34760288, 18EIA33890055)
- U.S. Department of Health & Human Services | National Institutes of Health
- U.S. Department of Health & Human Services | National Institutes of Health
- U.S. Department of Health & Human Services | National Institutes of Health
- U.S. Department of Health & Human Services | National Institutes of Health
- March of Dimes Foundation (4-FY18-851)
- Roy J. Carver Charitable Trust
- U.S. Department of Health & Human Services | National Institutes of Health
- U.S. Department of Health & Human Services | National Institutes of Health
- U.S. Department of Health & Human Services | National Institutes of Health
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