NIH-funded research NIH-funded research

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 typeNIH-funded research
Study typeNIH-funded research
Funding institutionOhio State University
NIH-funded
Lab location1 site (Columbus, UNITED STATES)
Project startAugust 15, 2021
Project endMay 31, 2027
Funding year2026
Award (this year)$472,500
NIH project number5DP1DA054344-05
Project IDNIH-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

Related research

Other NIH-funded projects on the same topics.

About this research

  1. This is an active NIH-funded research project — typically early-stage science, not a clinical trial accepting patient enrollment.
  2. Some NIH-funded labs run parallel clinical studies or seek volunteers for related work. To check, contact the principal investigator or institution listed above.
  3. For full project details, budget, and progress reports, visit the official NIH RePORTER page.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.