Why some people are resilient or vulnerable to opioid addiction
Official title: Neurobiological mechanisms underlying resiliency and vulnerability to opioid use disorder
Funded at Baylor University · NIH-11383053 · Data updated 2026-11-12
This project looks at brain cell and circuit differences—using advanced rat models—that could explain why some people develop opioid addiction while others stay resilient.
Quick facts
| Grant type | NIH-funded research |
|---|---|
| Study type | NIH-funded research |
| Funding institution | Baylor University NIH-funded |
| Lab location | 1 site (Waco, United States) |
| Project start | July 1, 2023 |
| Project end | November 30, 2028 |
| Funding year | 2026 |
| Award (this year) | $248,975 |
| NIH project number | 4R00DA057390-03 |
| Project ID | NIH-11383053 on NIH RePORTER |
Who could benefit from this research
✓Could help
This project does not enroll patients; it uses rat models at Baylor University to study brain mechanisms relevant to opioid use disorder.
✕Less likely to help
People seeking immediate treatment for opioid addiction are unlikely to receive direct or immediate benefit from this preclinical research.
What this research studies
Researchers use genetically diverse male and female rats to recreate the complex behavioral patterns seen in human opioid use disorder. They apply a Bayesian network clustering method to sort animals into resilient and vulnerable groups based on multiple interacting behaviors. In those subgroups the team will measure functional and structural changes in nucleus accumbens D1 and D2 medium spiny neurons using whole-cell patch-clamp electrophysiology and morphological analyses such as AMPA/NMDA ratios and dendritic structure. The goal is to identify cellular and circuit adaptations that drive vulnerability or resilience and point to targets for future prevention or treatment.
Why it matters
Potential benefit: If successful, the findings could point to new brain-circuit targets for preventing or treating opioid addiction.
How similar studies have gone: Previous animal studies have linked nucleus accumbens plasticity to addiction, but combining genetically diverse rats with network-based clustering to identify resilience mechanisms is relatively novel.
Where this research is happening
-
Baylor University
Waco, United States Active
Researchers
- Principal investigator: Kuhn, Brittany Nicole — Baylor University
- Study coordinator: Kuhn, Brittany Nicole
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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.