期刊
LIFE SCIENCES
卷 214, 期 -, 页码 106-117出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.lfs.2018.10.045
关键词
Autism spectrum disorder; Propionic acid; PPAR-alpha; Fenofibrate; Neuroinflammation; Oxidative stress
Aims: The present study investigated the neuropharmacological role of PPAR-alpha modulator, fenofibrate in postnatal-propionic acid induced syrnptomatology related with autism spectrum disorders (ASD) in Wistar rats. Main methods: The propionic acid (250 mg/kg, p.o.) was administered to rats from postnatal 21st day to 23rd day to induce autism-related neurobehavioral and neurobiochemical alterations in rats. Then, rats were treated with fenofibrate (100 mg/kg and 200 mg/kg, orally) from postnatal 24th day fill 48th day. The social behavior (three chambers social testing apparatus), repetitive behavior (Y-maze), locomotor activity (actophotometer), anxiety (elevated plus maze) and exploratory behavior (hole board test) were assessed. Biochemically, oxidative stress (thiobarbituric acid reactive species and reduced glutathione level) and neuroinflammation (interleukin-6, tumor necrosis factor-alpha and interleukin-10) were evaluated in the cerebellum, brainstem and prefrontal cortex of rats. Key findings: Propionic acid-treated rats showed social impairment, repetitive behavior, hyperlocomotion, anxiety and low exploratory activity. Also, these animals showed higher levels of oxidative stress (increased in thiobarbituric acid reactive species and decreased in reduced glutathione level) as well as inflammation (increased in interleukin-6, tumor necrosis factor-alpha and decreased in interleukin-10) and inflammation in aforementioned brain-regions. Treatment with fenofibrate significantly attenuated the propionic acid induced-social impairment, repetitive behavior, hyperactivity, anxiety and low exploratory activity. Furthermore, fenofibrate also reduced the oxidative stress and neuroinflammation in propionic acid-treated rats. Significance: A selective PPAR-alpha agonist, fenofibrate provides neurobehavioral and neurobiochemical benefits in postnatal-propionic acid induced autism-related phenotype in rats. Thus, fenofibrate may further be studied for its possible benefits in ASD symptoms.
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