Effects of Immune Response on Brain Synapses
Author Information
Author(s): Kondo Satoru, Kohsaka Shinichi, Okabe Shigeo
Primary Institution: Department of Cellular Neurobiology, Graduate School of Medicine, University of Tokyo
Hypothesis
Peripheral immune responses may induce long-lasting changes in synaptic dynamics and microglial activity.
Conclusion
A single transient peripheral immune response leads to persistent changes in spine dynamics and microglial activation.
Supporting Evidence
- Spine dynamics were less stable in LPS-treated mice.
- Microglial activation was confirmed by increased Iba1 immunoreactivity.
- 20% of spines were eliminated eight weeks after LPS treatment.
Takeaway
When the body fights an infection, it can change how brain cells connect with each other for a long time, which might affect memory and learning.
Methodology
In vivo two-photon microscopy was used to observe dendritic spines in mice after LPS treatment.
Potential Biases
Potential bias due to the use of a specific mouse strain and the effects of LPS treatment on behavior.
Limitations
The study did not investigate the direct association between dendritic spines and microglial processes.
Participant Demographics
C57BL/6 transgenic mice, both male and female, aged two to three months.
Statistical Information
P-Value
p<0.001
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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