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KMID : 1098420160240050341
Korean Journal of Medicinal Crop Science
2016 Volume.24 No. 5 p.341 ~ p.350
Effect of Valeriana fauriei Extract on the Neurodevelopmental Proteins Expression and Behavioral Patterns in Maternal Immune Activation Animal Model
Won Han-Sol

Kim Young-Ock
Lee Hwa-Young
Im Ji-Yun
Lee Sang-Hyun
Cho Ik-Hyun
Lee Sang-Won
Park Chun-Geun
Kim Hyung-Kee
Kwon Jun-Tack
Kim Hak-Jae
Abstract
Background: Prenatal exposure to infectious and/or inflammatory insults can increase the risk of developing neuropsychiatric disorder such as bipolar disorder, autism, and schizophrenia later in life. We investigated whether Valeriana fauriei (VF) treatment alleviates prepulse inhibition (PPI) deficits and social interaction impairment induced by maternal immune activation (MIA).

Methods and Results: Pregnant mice were exposed to polyriboinosinic-polyribocytidilic acid (5 mg/kg, viral infection mimic) on gestational day 9. The adolescent offspring received daily oral treatment with VF (100 mg/kg) and injections of clozapine (5 mg/kg) for 30 days starting on the postnatal day 35. The effects of VF extract treatment on behavioral activity impairment and protein expression were investigated using the PPI analysis, forced swim test (FST), open field test (OFT), social interaction test (SIT), and immunohistochemistry. The MIA-induced offspring showed deficits in the PPI, FST, OFT, and SIT compared to their non MIA-induced counterparts. Treatment with the VF extract significantly recovered the sensorimotor gating deficits and partially recovered the aggressive behavior observed in the SIT. The VF extract also reversed the downregulation of protein expression induced by MIA in the medial prefrontal cortex.

Conclusions: Our results provide initial evidence of the fact that the VF extract could reverse MIA-induced behavioral impairment and prevent neurodevelopmental disorders such as schizophrenia.
KEYWORD
Valeriana fauriei Briq., Maternal Immune Activation, Polyriboinosinic-Polyribocytidilic Acid, Schizophrenia
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