Decreased Adult Neurogenesis in the Ventral Hippocampus of ASD Mouse Models
Author Information
Author(s): Sun Lihao, Ohashi Nobuhiko, Mori Takuma, Mizuno Yuka, Zang Weichen, Guo Qi, Kouyama-Suzuki Emi, Shirai Yoshinori, Tabuchi Katsuhiko
Primary Institution: Shinshu University School of Medicine
Hypothesis
Impaired adult neurogenesis in the ventral hippocampus is a common hallmark across ASD mouse models.
Conclusion
The study found that decreased adult neurogenesis in the ventral hippocampus is a common phenotype across various ASD mouse models.
Supporting Evidence
- VPA-exposed mice displayed significant deficits in social interaction.
- Both IQSEC2 KO and NLGN3-R451C KI mice demonstrated reduced adult neurogenesis.
- Significant reduction in BrdU+/NeuN+ cells in the ventral hippocampus was observed across all ASD mouse models.
- Prenatal nicotine exposure also led to impaired adult neurogenesis in the ventral hippocampus.
Takeaway
Mice exposed to certain drugs during pregnancy showed less ability to make new brain cells in a part of the brain that helps with social behavior, which might explain some autism-like traits.
Methodology
The study used C57BL/6J mice and genetically modified ASD models, assessing social behavior and adult hippocampal neurogenesis through immunofluorescence techniques.
Limitations
The methodology for estimating total numbers of BrdU/NeuN double-positive cells and DCX positive cells may not provide a complete picture of neurogenesis.
Participant Demographics
The study involved male C57BL/6J mice and genetically modified ASD models.
Statistical Information
P-Value
p<0.05
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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