Hydrogen Nanoparticles Protect Against Drug-Induced Hearing Loss
- Authors
- Wenbin Xiao, Kerui He, Chong Yu, Zeming Zhou, Liye Xia, Shibao Xie, Hanqi Li, Ming Zhang, Zhifeng Zhang, Pei Luo, Lu Wen, Gang Chen
- Journal
- Molecular Pharmaceutics
- Year
- 2023
- DOI
- 10.1021/acs.molpharmaceut.3c00177
- Study Type
- Cell Culture
- Outcome
- Positive
- Peer Reviewed
- Yes
- Country
- China
- Health Condition
- Sensorineural Hearing Loss
- Body System
- Auditory
TL;DR
Scientists have developed tiny, smart particles that can deliver a combination of drugs directly to the inner ear to prevent drug-induced hearing loss.
Key Finding
Composite nanoparticles loaded with natural compounds and hydrogen nearly completely preserved inner ear hair cells and maintained normal hearing thresholds in guinea pigs treated with ototoxic drugs, suggesting a potential protective mechanism against drug-induced hearing loss.
Summary
Researchers created tiny composite particles designed to deliver multiple therapeutic compounds—including natural plant extracts and hydrogen—directly into the inner ear to protect against hearing loss caused by certain antibiotics and chemotherapy drugs. In guinea pig studies, these nanoparticles successfully preserved inner ear hair cells (which are essential for hearing) and prevented hearing damage by reducing harmful molecules called reactive oxygen species and decreasing inflammation.
Practical Takeaway
While this research is promising, it remains in early-stage animal testing and has not been tested in humans. The study demonstrates that hydrogen combined with other compounds may help protect hearing in a laboratory setting, but much more research is needed before any conclusions can be drawn about effectiveness or safety in people taking hearing-damaging medications.
Abstract (excerpt)
Ototoxic drugs such as aminoglycoside antibiotics and cisplatin (CDDP) can cause sensorineural hearing loss (SNHL), which is closely related to oxidative stress and the acidification of the inner ear microenvironment. Effective treatment of SNHL often requires multifaceted approach due…