How acid-sensing brain proteins change opioid-driven brain connections
Investigating a novel regulatory pathway for opioid-induced synaptic plasticity and behavior
Researchers are looking at how tiny changes in brain chemistry and acid-sensing proteins affect opioid-driven changes in the brain to help people with opioid addiction or chronic pain.
Quick facts
| Grant type | NIH-funded research |
|---|---|
| Study type | NIH-funded research |
| Funding institution | Iowa City VA Medical Center NIH-funded |
| Lab location | 1 site (Iowa City, United States) |
| Project ID | NIH-11207164 on NIH RePORTER |
What this research studies
This work focuses on brain circuits in the nucleus accumbens that are involved in opioid reward, craving, and relapse. Scientists are examining how protons released during neurotransmission, the acid-sensing ion channel ASIC1A, and the buffering enzyme CA4 change synapses after opioid exposure. They use laboratory models and behavioral experiments to see how altering these proteins affects synapse structure and addiction-like behaviors. The goal is to find molecular steps that could be targeted to reduce vulnerability to addiction and relapse.
Who could benefit from this research
Good fit: People with opioid use disorder, a history of relapse, or chronic pain treated with opioids are the groups most likely to benefit from advances based on this work.
Not a fit: People without opioid exposure or who do not face opioid-related risks are unlikely to see direct benefit from this specific line of research.
Why it matters
Potential benefit: If successful, this research could point to new biological targets for therapies that reduce opioid addiction, relapse, or harmful effects of chronic opioid use.
How similar studies have performed: Previous laboratory and animal studies have implicated ASIC1A in stabilizing synapses and influencing drug responses, but the specific pathway involving proton signaling and CA4 is relatively new and not yet proven as a human treatment.
Where this research is happening
Iowa City, United States
- Iowa City VA Medical Center — Iowa City, United States (Active)
Researchers
- Principal investigator: Wemmie, John a — Iowa City VA Medical Center
- Study coordinator: Wemmie, John a
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.