How proBDNF Affects Memory Formation and Extinction
Author Information
Author(s): Philip Barnes, Kerrie L. Thomas, Alessandro Bartolomucci
Primary Institution: Cardiff School of Biosciences, Cardiff University, Cardiff, United Kingdom
Hypothesis
The processing of proBDNF is a key regulator in the formation and extinction of contextual fear memory.
Conclusion
The study found that increased proteolysis of proBDNF is associated with the acquisition of new information, while decreased processing is linked to the extinction of fear memories.
Supporting Evidence
- The study demonstrated that the processing of proBDNF is positively correlated with the acquisition of contextual fear memory.
- It was shown that the extinction of fear memory is dependent on protein synthesis in the hippocampus.
- The infusion of BDNF antisense oligonucleotides reduced freezing behavior during memory recall tests.
Takeaway
This study shows that a protein called proBDNF helps us learn new things, but when we want to forget something scary, we need less of it.
Methodology
The study used adult male Lister hooded rats and involved infusions of protein synthesis inhibitors and antisense oligonucleotides targeting BDNF mRNA into the hippocampus to assess memory processes.
Participant Demographics
Adult male Lister hooded rats weighing 280–350 g.
Statistical Information
P-Value
p<0.05
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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