Abstract:
:Antiepileptic drugs (AEDs) require daily ingestion for maximal seizure prophylaxis. Adverse psychiatric consequences of AEDs present as: (i) reversible changes in mood, anxiety, anger and/or irritability that often necessitate drug discontinuation, and (ii) autism and/or cognitive/psychomotor delays following fetal exposure. Technical advances in quantifying naturalistic rodent behaviors may provide sensitive preclinical estimates of AED psychiatric tolerability and neuropsychiatric teratogenicity. In this study, we applied instrumented home-cage monitoring to assess how valproic acid (VPA, dissolved in sweetened drinking water) alters home-cage behavior in adult C57BL/6J mice and in the adult offspring of VPA-exposed breeder pairs. Through a pup open field assay, we also examined how prenatal VPA exposure impacts early spontaneous exploratory behavior. At 500-600 mg/kg/d, chronic VPA produced hyperphagia and increased wheel-running without impacting sleep, activity and measures of risk aversion. When applied to breeder pairs of mice throughout gestation, VPA prolonged the latency to viable litters without affecting litter size. Two-weeks old VPA-exposed pups displayed open field hypoactivity without alterations in thigmotaxis. As adults, prenatal VPA-exposed mice displayed active state fragmentation, hypophagia and increased wheel running, together with subtle alterations in home-cage dyadic behavior. Together, these data illustrate how automated home-cage assessments of spontaneous behavior capture an ethologically centered psychopharmacological profile of enterally administered VPA that is aligned with human clinical experience. By characterizing the effects of pangestational VPA exposure, we discover novel murine expressions of pervasive neurodevelopment. Incorporating such rigorous assessments of psychological tolerability may inform the design of future AEDs with improved neuropsychiatric safety profiles, both for patients and their offspring.
journal_name
Front Neuroscijournal_title
Frontiers in neuroscienceauthors
Bass JS,Tuo AH,Ton LT,Jankovic MJ,Kapadia PK,Schirmer C,Krishnan Vdoi
10.3389/fnins.2020.594612subject
Has Abstractpub_date
2020-11-06 00:00:00pages
594612eissn
1662-4548issn
1662-453Xjournal_volume
14pub_type
杂志文章abstract::In the present review, we deliver an overview of the involvement of metabotropic glutamate receptor 5 (mGluR5) activity and density in pathological anxiety, mood disorders and addiction. Specifically, we will describe mGluR5 studies in humans that employed Positron Emission Tomography (PET) and combined the findings w...
journal_title:Frontiers in neuroscience
pub_type: 杂志文章,评审
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journal_title:Frontiers in neuroscience
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pub_type: 杂志文章
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abstract::Adult neurogenesis is a tightly regulated process continuously taking place in the central nervous system of most mammalian species. In neuroscience research, transgenic animals bearing the tamoxifen-inducible CreERT2-Lox system are widely used. In this study, we made use of a Nestin-CreERT2/R26R-YFP transgenic mouse ...
journal_title:Frontiers in neuroscience
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doi:10.3389/fnins.2017.00027
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journal_title:Frontiers in neuroscience
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doi:10.3389/fnins.2015.00526
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doi:10.3389/fnins.2019.00357
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journal_title:Frontiers in neuroscience
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doi:10.3389/fnins.2015.00393
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journal_title:Frontiers in neuroscience
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