How the APOE4 gene affects brain blood flow and thinking
ApoE4, Neurovascular Injury and Cognitive Impairment
This project looks at whether APOE4 in brain immune cells causes blood-vessel stress that leads to white matter damage and memory problems in people at risk for Alzheimer’s.
Quick facts
| Grant type | R01 grant |
|---|---|
| Study type | NIH-funded research |
| Funding institution | Weill Medical Coll of Cornell Univ NIH-funded |
| Lab location | 1 site (New York, United States) |
| Project ID | NIH-11305250 on NIH RePORTER |
What this research studies
From a patient's perspective, scientists are examining whether APOE4 carried by perivascular macrophages (immune cells next to brain blood vessels) creates oxidative stress that harms blood flow to deep white matter. They use mice engineered with the human APOE4 gene alongside cell and tissue experiments to track blood flow, inflammation, and white matter injury. The team is specifically testing the role of the NOX2 enzyme as a source of damaging reactive oxygen that could link APOE4 to vessel dysfunction. Findings will be compared to known patterns in APOE4 carriers to help guide future treatments aimed at protecting white matter and cognition.
Who could benefit from this research
Good fit: People who carry the APOE4 gene or older adults with early memory problems or white matter changes on brain scans would be the most relevant candidates.
Not a fit: People without the APOE4 gene or those with advanced Alzheimer’s disease where damage is already widespread may be less likely to directly benefit.
Why it matters
Potential benefit: If successful, this work could point to new ways to protect brain blood vessels and prevent white matter damage and cognitive decline in people with APOE4.
How similar studies have performed: Previous work has linked APOE4 to reduced cerebral blood flow and white matter lesions, but targeting perivascular macrophage-driven oxidative stress is a relatively new and untested approach.
Where this research is happening
New York, United States
- Weill Medical Coll of Cornell Univ — New York, United States (Active)
Researchers
- Principal investigator: Iadecola, Costantino — Weill Medical Coll of Cornell Univ
- Study coordinator: Iadecola, Costantino
About this research
- This is an active NIH-funded research project — typically early-stage science, not a clinical trial accepting patient enrollment.
- Some NIH-funded labs run parallel clinical studies or seek volunteers for related work. To check, contact the principal investigator or institution listed above.
- For full project details, budget, and progress reports, visit the official NIH RePORTER page below.