Brain-derived neurotrophic factor (BDNF) plays a crucial role in the initial formation of the central auditory system and the sensory epithelium within the inner ear. Mounting evidence indicates that BDNF administration promotes microRNA (miRNA) production in neurons, despite the typical suppressive effect of miRNAs on BDNF expression....
No actionable clinical change — this is early-stage genetic association research; findings do not yet inform tinnitus diagnosis or treatment in clinical practice.
Identifying genetic variants that modulate BDNF expression in tinnitus patients could open future pathways for targeted therapies, but the field is at a basic science stage.
- 01Study investigates microRNA polymorphisms (miR-30e, miR-206, miR-124) as potential genetic factors in chronic tinnitus.
- 02BDNF (brain-derived neurotrophic factor) gene modulation is the proposed biological mechanism.
- 03Genetic association studies like this are hypothesis-generating and cannot establish causation.
- 04Published in the International Archives of Otorhinolaryngology (DOI: 10.65717/iao.2026.252009).
- 05Clinical translation of microRNA-based tinnitus biomarkers remains many years away.
Polymorphisms in miR-30e, miR-206, and miR-124 are associated with chronic tinnitus through modulation of the BDNF gene.
studyunclear- PMID
- 42345411
- DOI
- 10.65717/iao.2026.252009.
- Journal
- International Archives of Otorhinolaryngology
- Publication type
- research_article
- Evidence level
- 3
- Population
- Patients with chronic tinnitus
- Intervention
- Genotyping of miR-30e, miR-206, and miR-124 polymorphisms
- Comparator
- Controls without chronic tinnitus
Primary outcomes
Association between microRNA polymorphisms and presence of chronic tinnitus; BDNF gene expression modulation by identified polymorphisms