X chromosome differences may help explain why substance use disorders affect men and women differently
Official title: X chromosome inactivation in sex disparities to substance use disorder
Funded at Ohio State University · NIH-11358357 · Data updated 2026-11-12
This grant explores how genes on the X chromosome, and whether they escape inactivation, may influence why women and men experience substance use disorders differently.
Quick facts
| Grant type | NIH-funded research |
|---|---|
| Study type | NIH-funded research |
| Funding institution | Ohio State University NIH-funded |
| Lab location | 1 site (Columbus, UNITED STATES) |
| Project start | August 15, 2021 |
| Project end | May 31, 2027 |
| Funding year | 2026 |
| Award (this year) | $472,500 |
| NIH project number | 5DP1DA054344-05 |
| Project ID | NIH-11358357 on NIH RePORTER |
Who could benefit from this research
✓Could help
Individuals with substance use disorders or those at risk, with a focus on sex-specific biology and genetic factors.
✕Less likely to help
People without substance use concerns or without participation in genetic/epigenetic studies may not benefit directly.
What this research studies
If funded, researchers at Ohio State University will study how X chromosome inactivation and escape from inactivation could contribute to sex differences in addiction behavior. They will use advanced genetic and epigenetic methods to examine how X-linked genes are expressed in females versus males and how this relates to initiation, escalation, and withdrawal from addictive substances. The work combines human-focused data with cutting-edge technology to uncover non-hormonal factors shaping addiction risk by sex. Findings could point to new avenues for personalized prevention and treatment strategies. Participation would involve contributing biological samples and clinical information in a research setting under approved protocols.
Why it matters
Potential benefit: Could lead to more tailored prevention and treatment approaches for substance use disorders by understanding sex-specific biological factors.
How similar studies have gone: Previous research has shown sex differences in addiction and emerging work on XCI suggests a non-hormonal mechanism may be involved, but this area is still developing.
Where this research is happening
-
Ohio State University
Columbus, United States Active
Researchers
- Principal investigator: Oghumu, Steve Onyeka — Ohio State University
- Study coordinator: Oghumu, Steve Onyeka
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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.