Receptor-Associated Protein (RAP) Plays a Central Role in Modulating Aβ Deposition in APP/PS1 Transgenic Mice Reduced RAP Increases Plaques
2008

RAP's Role in Amyloid Deposition in Alzheimer's Disease Mice

Sample size: 13 publication 10 minutes Evidence: moderate

Author Information

Author(s): Xu Guilian, Karch Celeste, Li Ning, Lin Nianwei, Fromholt David, Gonzales Victoria, Borchelt David R.

Primary Institution: University of Florida

Hypothesis

How does the reduction of receptor-associated protein (RAP) influence amyloid deposition in APP/PS1 transgenic mice?

Conclusion

Reducing RAP levels leads to increased amyloid deposition in a mouse model of Alzheimer's disease.

Supporting Evidence

  • Partial reductions in RAP levels were associated with a 30-40% increase in amyloid deposition.
  • Immunoblot analysis showed a 15% reduction in SorLA/LR11 levels with reduced RAP.
  • Statistical analysis indicated a significant difference in amyloid burden between the genotypes.

Takeaway

When we lower the amount of a protein called RAP in mice, they end up with more sticky stuff in their brains that can cause Alzheimer's disease.

Methodology

Transgenic mice were used to study the effects of RAP reduction on amyloid deposition, with various biochemical and histological analyses performed.

Potential Biases

Potential bias due to the different genetic backgrounds of the mouse models compared.

Limitations

The study's findings may be influenced by genetic background differences between the mouse strains used.

Participant Demographics

Mice used were transgenic for APP and PS1, with some having a homozygous deletion of RAP.

Statistical Information

P-Value

p<0.025

Statistical Significance

p<0.05

Digital Object Identifier (DOI)

10.1371/journal.pone.0003159

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