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Characterization of in utero valproic acid mouse model of autism by local field potential in the hippocampus and the olfactory bulb
- Source :
- Neuroscience Research. 98:28-34
- Publication Year :
- 2015
- Publisher :
- Elsevier BV, 2015.
-
Abstract
- Valproic acid (VPA) mouse model of autism spectrum disorder (ASD) has been characterized mostly by impaired ultrasonic vocalization, poor sociability and increased repetitive self-grooming behavior. However, its neural signaling remained unknown. This study investigated the local field potentials (LFPs) in the dorsal hippocampal CA1 and the olfactory bulb while animals exploring a novel open field. VPA was administered at gestational day 13. The results demonstrated three core features of ASD in male offspring. However, there was no difference in Y-maze performance and locomotor activity. Analysis of hippocampal LFP power revealed significantly increased slow wave (1-4 Hz) and high gamma (80-140 Hz) oscillations and decreased theta (4-12 Hz) activity in VPA mice. In the olfactory bulb, VPA animals showed greater slow wave (1-4 Hz) and beta (25-40 Hz) activity and lower activity of low gamma (55-80 Hz) wave. Regression analysis revealed positive correlations between hippocampal theta power and locomotor speed for both control and VPA-exposed mice. There was no significant difference between groups for modulation index of theta (4-12 Hz) phase modulated gamma (30-200 Hz) amplitude. These findings characterized VPA mouse model with LFP oscillations that might provide better understanding of neural processing in ASD.
- Subjects :
- Offspring
Hippocampus
Local field potential
Hippocampal formation
Open field
Pregnancy
medicine
Animals
Autistic Disorder
Beta (finance)
CA1 Region, Hippocampal
Maternal-Fetal Exchange
Mice, Inbred ICR
Valproic Acid
Chemistry
General Neuroscience
General Medicine
Olfactory Bulb
Olfactory bulb
Maternal Exposure
Prenatal Exposure Delayed Effects
Exploratory Behavior
Anticonvulsants
Female
lipids (amino acids, peptides, and proteins)
Neuroscience
Locomotion
medicine.drug
Subjects
Details
- ISSN :
- 01680102
- Volume :
- 98
- Database :
- OpenAIRE
- Journal :
- Neuroscience Research
- Accession number :
- edsair.doi.dedup.....c95cfdd2fa2c600c6ef79e9a130d2209
- Full Text :
- https://doi.org/10.1016/j.neures.2015.04.006