國家衛生研究院 NHRI:Item 3990099045/12113
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    题名: Targeting the inhibition of fatty acid amide hydrolase ameliorate the endocannabinoid-mediated synaptic dysfunction in a valproic acid-induced rat model of Autism
    作者: Wu, HF;Lu, TY;Chu, MC;Chen, PS;Lee, CW;Lin, HC
    贡献者: NHRI Graduate Student Program
    摘要: Autism spectrum disorder (ASD) is a neurodevelopmental disorder, characterized by social interaction impairment, stereotypical/repetitive behaviors and emotional deregulation. The endocannabinoid (eCB) system plays a crucial role in modulating the behavioral traits that are typically core symptoms of ASD. The major molecular mechanisms underlying eCB-dependent long-term depression (eCB-LTD) are mediated by group 1 metabotropic glutamate receptor (mGluR)-induced removal of postsynaptic alpha-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid receptors (AMPARs). Recently, modulation of anandamide (AEA), one of the main endocannabinoids in the brain, has been reported to alter social behaviors in genetic models of ASD. On this basis, we investigated the effects of treatment and the synaptic mechanism underlying AEA-mediated signaling in prenatal exposure to valproic acid (VPA) in rats. We found that the social deficits, repetitive behaviors and abnormal emotion-related behaviors in VPA-exposed offspring were improved after treatment with an inhibitor of AEA degrading enzyme, URB597. Using an integrative approach combing electrophysiological and cellular mechanisms, the results showed that the impaired eCB-LTD, abnormal mGluR-mediated LTD (mGluR-LTD) and decreased removal of AMPAR subunits GluA1 and GluA2 were reversed by URB597 in the prefrontal cortex (PFC) of VPA-exposed offspring. Taken together, these results provide the first evidence that rescue of the ASD-like phenotype by URB597 is mediated by enhancing the mechanism of removal of AMPAR subunits GluA1/2 underlying AEA signaling in the PFC in a VPA-induced model of ASD.
    日期: 2020-01
    關聯: Neuropharmacology. 2020 Jan;162;Article number 107736.
    Link to: http://dx.doi.org/10.1016/j.neuropharm.2019.107736
    JIF/Ranking 2023: http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=NHRI&SrcApp=NHRI_IR&KeyISSN=0028-3908&DestApp=IC2JCR
    Cited Times(WOS): https://www.webofscience.com/wos/woscc/full-record/WOS:000504504600019
    Cited Times(Scopus): https://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=85074320692
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