How nicotine affects dopamine and stress hormones in addiction and depression
Crosstalk between dopamine and glucocorticoids in high levels of nicotine intake and anhedonia in rats
This study is looking at how nicotine addiction affects the brain's pleasure and stress systems in rats, to help us understand why quitting smoking can be so tough and how it might lead to feelings of sadness, with the hope of finding better ways to help people stop smoking.
Quick facts
| Grant type | R01 grant |
|---|---|
| Study type | NIH-funded research |
| Funding institution | University of Florida NIH-funded |
| Lab location | 1 site (Gainesville, United States) |
| Project ID | NIH-10541823 on NIH RePORTER |
What this research studies
This research investigates the relationship between nicotine addiction and the brain's reward and stress systems, particularly focusing on dopamine and glucocorticoids. By studying rats that self-administer nicotine, the researchers aim to understand how high levels of nicotine intake lead to withdrawal symptoms and anhedonia, a state of reduced pleasure. The study employs a model that allows for prolonged nicotine exposure to mimic human addiction, providing insights into the neurobiological mechanisms involved. The ultimate goal is to identify potential new treatments for smoking cessation that address both addiction and associated depressive symptoms.
Who could benefit from this research
Good fit: Ideal candidates for this research are individuals struggling with nicotine addiction who experience withdrawal symptoms and anhedonia.
Not a fit: Patients who do not smoke or are not experiencing withdrawal symptoms from nicotine may not benefit from this research.
Why it matters
Potential benefit: If successful, this research could lead to more effective smoking cessation therapies that also alleviate withdrawal-related depression.
How similar studies have performed: Previous research has shown promising results in understanding the neurobiological mechanisms of addiction, but this specific approach focusing on dependent animals with high nicotine intake is relatively novel.
Where this research is happening
Gainesville, United States
- University of Florida — Gainesville, United States (Active)
Researchers
- Principal investigator: Bruijnzeel, Adriaan Willem — University of Florida
- Study coordinator: Bruijnzeel, Adriaan Willem
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.