Why the brain becomes tolerant to alcohol's unpleasant effects
Neurobiological mechanisms underlying chronic tolerance to the aversive properties of ethanol
['FUNDING_R01'] · UNIVERSITY OF ILLINOIS AT CHICAGO · NIH-11098461
Researchers are looking at brain circuits that make alcohol feel less unpleasant over time in people who drink heavily.
Quick facts
| Phase | ['FUNDING_R01'] |
|---|---|
| Study type | Nih_funding |
| Sex | All |
| Sponsor | UNIVERSITY OF ILLINOIS AT CHICAGO (nih funded) |
| Locations | 1 site (Chicago, UNITED STATES) |
| Trial ID | NIH-11098461 on ClinicalTrials.gov |
What this research studies
From my point of view as a patient, scientists are studying specific brain pathways between parts of the prefrontal cortex and a midbrain area called the RMTg that control how unpleasant alcohol feels. Using laboratory models, they will look at how long-term alcohol exposure changes those neurons and their calcium signaling, and how that change reduces aversive responses. The team will manipulate those circuits to see if restoring normal signaling brings back the unpleasant reactions to alcohol. Findings could point to brain targets for future treatments to curb heavy drinking.
Who could benefit from this research
Good fit: People with a history of heavy or chronic alcohol use or diagnosed alcohol use disorder are the most likely future candidates for related clinical work.
Not a fit: People whose drinking is driven mainly by social factors or reward sensitivity rather than tolerance to aversive effects may not benefit directly from these findings.
Why it matters
Potential benefit: If successful, this work could reveal brain targets that help restore sensitivity to alcohol’s unpleasant effects and reduce excessive drinking.
How similar studies have performed: Prior animal studies show brain circuits can change responses to alcohol, but focusing on the mPFC-to-RMTg projection and its role in aversion tolerance is a relatively new approach.
Where this research is happening
Chicago, UNITED STATES
- UNIVERSITY OF ILLINOIS AT CHICAGO — Chicago, UNITED STATES (ACTIVE)
Researchers
- Principal investigator: GLOVER, ELIZABETH J — UNIVERSITY OF ILLINOIS AT CHICAGO
- Study coordinator: GLOVER, ELIZABETH J
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.