New brain circuits that reduce mechanical pain
Novel Circuits and Mechanisms of Descending Pain Modulation
Researchers are exploring specific brain cells and connections that could help lower mechanical pain for people with acute or chronic pain.
Quick facts
| Grant type | R01 grant |
|---|---|
| Study type | NIH-funded research |
| Funding institution | University of Iowa NIH-funded |
| Lab location | 1 site (Iowa City, United States) |
| Project ID | NIH-11235836 on NIH RePORTER |
What this research studies
This project studies a newly discovered group of neurons (called LJA5) in the lateral pons that connect to spinal pain pathways. The team uses advanced lab tools like two-photon imaging and chemogenetic control to map connections and test how these cells change pain signals. Early lab work in animals showed that activating LJA5 cells reduced mechanical pain from capsaicin and inflammation, while inhibiting them increased mechanical hypersensitivity. Understanding these circuits aims to point toward more targeted pain treatments in the future.
Who could benefit from this research
Good fit: People with acute or chronic mechanical pain or inflammatory pain (for example, heightened pain from touch or pressure) would be the most relevant group for therapies developed from this research.
Not a fit: People whose pain is primarily thermal, neuropathic from unrelated circuits, or who do not experience mechanical hypersensitivity may not benefit from therapies targeting this pathway.
Why it matters
Potential benefit: If successful, the work could lead to new, more targeted treatments that reduce mechanical pain without broadly affecting other sensations.
How similar studies have performed: Previous animal studies of descending pain circuits have shown that manipulating brainstem pathways can change pain sensitivity, but targeting this specific LJA5 cell group is a novel approach.
Where this research is happening
Iowa City, United States
- University of Iowa — Iowa City, United States (Active)
Researchers
- Principal investigator: Usachev, Yuriy M — University of Iowa
- Study coordinator: Usachev, Yuriy M
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.