Air pollution's effects on fat metabolism, heart health, and Alzheimer's risk
Dissecting the Role of Arachidonic Acid Metabolic Pathways Involved in Resolution Versus Progression of PM-Induced Cardiometabolic Toxicity
This project looks at whether air pollution causes harmful changes in fat and heart metabolism that can worsen Alzheimer's-related brain damage and whether shifting arachidonic acid pathways can change those outcomes.
Quick facts
| Grant type | R01 grant |
|---|---|
| Study type | NIH-funded research |
| Funding institution | University of California Los Angeles NIH-funded |
| Lab location | 1 site (Los Angeles, United States) |
| Project ID | NIH-11300060 on NIH RePORTER |
What this research studies
From a patient's perspective, this work uses a mouse model that develops high blood fats and atherosclerosis and exposes those mice to ultrafine air pollution and diesel particles, then examines liver, blood, and brain tissue for inflammation and lipid damage. The team focuses on biochemical pathways that make and resolve inflammatory molecules from arachidonic acid to see which patterns link pollution exposure to worsening or improving brain changes associated with Alzheimer's. They compare animals on a high-fat diet with and without pollution exposure and analyze brain tissue alongside liver and blood lipids. The goal is to find molecular signals that could be targeted to lower pollution-related Alzheimer's risk.
Who could benefit from this research
Good fit: People with high cardiovascular or metabolic risk, or those living in areas with heavy air pollution, would be most relevant to follow or participate in future related human studies.
Not a fit: Patients without cardiovascular or metabolic risk factors and with minimal exposure to air pollution are less likely to directly benefit from this specific research.
Why it matters
Potential benefit: If successful, this work could reveal biological pathways that connect air pollution and cardiometabolic changes to Alzheimer's risk, pointing to new prevention strategies or drug targets.
How similar studies have performed: Previous animal studies have shown that ultrafine particles and diesel exhaust cause systemic inflammation and lipid damage, but linking arachidonic acid metabolic pathways specifically to Alzheimer's progression is relatively novel.
Where this research is happening
Los Angeles, United States
- University of California Los Angeles — Los Angeles, United States (Active)
Researchers
- Principal investigator: Araujo, Jesus Antonio — University of California Los Angeles
- Study coordinator: Araujo, Jesus Antonio
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.