Maternal Immune Activation Causes Social Behavior Deficits and Hypomyelination in Male Rat Offspring with an Autism-Like Microbiota Profile.
Gilbert Aaron LeeYen-Kuang LinJing-Huei LaiYu-Chun LoYu-Chen S H YangSyuan-You YeChia-Jung LeeChing-Chiung WangYung-Hsiao ChiangSung-Hui TsengPublished in: Brain sciences (2021)
Maternal immune activation (MIA) increases the risk of autism spectrum disorder (ASD) in offspring. Microbial dysbiosis is associated with ASD symptoms. However, the alterations in the brain-gut-microbiota axis in lipopolysaccharide (LPS)-induced MIA offspring remain unclear. Here, we examined the social behavior, anxiety-like and repetitive behavior, microbiota profile, and myelination levels in LPS-induced MIA rat offspring. Compared with control offspring, MIA male rat offspring spent less time in an active social interaction with stranger rats, displayed more anxiety-like and repetitive behavior, and had more hypomyelination in the prefrontal cortex and thalamic nucleus. A fecal microbiota analysis revealed that MIA offspring had a higher abundance of Alistipes, Fusobacterium, and Ruminococcus and a lower abundance of Coprococcus, Erysipelotrichaies, and Actinobacteria than control offspring, which is consistent with that of humans with ASD. The least absolute shrinkage and selection operator (LASSO) method was applied to determine the relative importance of the microbiota, which indicated that the abundance of Alistipes and Actinobacteria was the most relevant for the profile of defective social behavior, whereas Fusobacterium and Coprococcus was associated with anxiety-like and repetitive behavior. In summary, LPS-induced MIA offspring showed an abnormal brain-gut-microbiota axis with social behavior deficits, anxiety-like and repetitive behavior, hypomyelination, and an ASD-like microbiota profile.
Keyphrases
- lps induced
- autism spectrum disorder
- high fat diet
- inflammatory response
- healthcare
- attention deficit hyperactivity disorder
- intellectual disability
- mental health
- high frequency
- insulin resistance
- adipose tissue
- traumatic brain injury
- multiple sclerosis
- prefrontal cortex
- antibiotic resistance genes
- microbial community
- sleep quality
- metabolic syndrome
- type diabetes
- oxidative stress
- skeletal muscle
- toll like receptor
- birth weight
- immune response
- working memory
- physical activity
- deep brain stimulation
- weight gain
- preterm birth