Role of Apolipoprotein E in Anxiety
Author Information
Author(s): Jacob Raber
Primary Institution: Oregon Health & Science University
Hypothesis
Human apoE isoforms have differential effects on measures of anxiety in adult mice and probable Alzheimer's disease patients.
Conclusion
ApoE isoforms have differential effects on measures of anxiety in both mice and probable Alzheimer's disease patients.
Supporting Evidence
- Anxiety symptoms occur in about 50% to 75% of Alzheimer's disease patients.
- ApoE4 is a risk factor for developing Alzheimer's disease at an earlier age.
- ApoE isoforms have differential effects on anxiety in adult mice.
- Impaired dexamethasone suppression of cortisol levels is observed in apoE4 mice.
Takeaway
This study found that different forms of a protein called apoE affect anxiety levels in mice and people with Alzheimer's disease.
Methodology
The study used behavioral tests in mice to assess anxiety levels and compared the effects of different apoE isoforms.
Limitations
The study primarily focused on animal models, which may not fully represent human conditions.
Participant Demographics
Subjects were nonsmokers in good general health, free of major psychiatric or neurological disorders, with a mean age of 73 years.
Statistical Information
P-Value
p<0.05
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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