Hearing and sound‑localization problems in Fragile X syndrome
Myelination Deficits Underlying Auditory Issues in Fragile X Syndrome
This work looks at whether reduced myelin (nerve insulation) causes trouble hearing and locating sounds in people with Fragile X syndrome.
Quick facts
| Grant type | R15 grant |
|---|---|
| Study type | NIH-funded research |
| Funding institution | Oklahoma State University Stillwater NIH-funded |
| Lab location | 1 site (Stillwater, United States) |
| Project ID | NIH-11125625 on NIH RePORTER |
What this research studies
Researchers will use mice that model Fragile X to study whether the insulation (myelin) around hearing nerve fibers in the brainstem is thinner or altered. They will use genetic methods plus microscopy to examine myelin structure, record auditory brainstem responses (ABRs) to measure signal timing, and run startle‑response tests to gauge hearing behavior. The team aims to connect anatomical myelin defects with slowed or changed sound processing that could explain difficulties in noisy environments. Though this project is lab‑based in animals, the findings are intended to guide future human screening or treatment approaches for Fragile X and related autism‑spectrum auditory problems.
Who could benefit from this research
Good fit: People with Fragile X syndrome and caregivers concerned about listening or sound‑sensitivity problems would be most relevant to this line of research and any future human studies.
Not a fit: People whose hearing difficulties stem from ear‑level damage (for example chronic middle‑ear disease or cochlear injury) rather than brainstem myelination are less likely to benefit directly.
Why it matters
Potential benefit: Could identify a measurable brain change behind hearing problems in Fragile X and point toward new screening or treatment strategies.
How similar studies have performed: Earlier animal work, including the team's prior R15, found thinner myelin and altered auditory brainstem responses in Fragile X mice, but translating these results to human patients has not yet been demonstrated.
Where this research is happening
Stillwater, United States
- Oklahoma State University Stillwater — Stillwater, United States (Active)
Researchers
- Principal investigator: Mccullagh, Elizabeth Anne — Oklahoma State University Stillwater
- Study coordinator: Mccullagh, Elizabeth Anne
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.