How stress around puberty changes brain circuits for reward and anxiety
Gating of Information Flow Within the Nucleus Accumbens
Researchers are looking at how stressful experiences around puberty change brain cells and circuits that affect anxiety and reward in males and females.
Quick facts
| Grant type | R01 grant |
|---|---|
| Study type | NIH-funded research |
| Funding institution | University of Pittsburgh at Pittsburgh NIH-funded |
| Lab location | 1 site (Pittsburgh, United States) |
| Project ID | NIH-11228783 on NIH RePORTER |
What this research studies
This work uses rat models to look at how stress before or after puberty damages specific inhibitory brain cells (parvalbumin neurons) and alters activity in regions like the ventral hippocampus, basolateral amygdala, thalamic reuniens, and nucleus accumbens. The team compares effects of stress at different pubertal stages in males versus females to identify when and where changes occur. They measure dopamine signaling and how information flow is gated in the nucleus accumbens and study how different parts of the medial prefrontal cortex contribute. Results aim to map sex-specific pathways that could explain why early stress raises the risk for anxiety and mood problems.
Who could benefit from this research
Good fit: People who experienced significant stress or trauma in childhood or around puberty, or adults with anxiety or mood disorders linked to early stress, would be most relevant to these findings.
Not a fit: Because this is preclinical animal research, people seeking immediate treatment changes or those without a history of early-life stress are unlikely to get direct benefit now.
Why it matters
Potential benefit: If successful, this work could point to specific brain-circuit targets for new treatments to prevent or reduce anxiety and mood disorders after early-life stress.
How similar studies have performed: Previous animal studies have shown stress-related loss of parvalbumin neurons and altered dopamine signaling, but the focus on timing, sex differences, and information gating in the nucleus accumbens is relatively new.
Where this research is happening
Pittsburgh, United States
- University of Pittsburgh at Pittsburgh — Pittsburgh, United States (Active)
Researchers
- Principal investigator: Grace, Anthony a — University of Pittsburgh at Pittsburgh
- Study coordinator: Grace, Anthony 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.