Circulating microRNAs as potentially new diagnostic biomarkers of idiopathic sudden sensorineural hearing loss

Sun Mok Ha1,2, Kyu Rin Hwang3, Il Hwan Park4

  • 1Research Institute of Hearing Enhancement, Yonsei University Wonju College of Medicine, Wonju, Republic of Korea.

Acta Oto-Laryngologica
|September 3, 2020
PubMed
Abstract

Insights

Detecting specific circulating microRNAs can help identify idiopathic sudden sensorineural hearing loss (ISSNHL) early. This method shows promise for monitoring hearing ability and treatment outcomes in ISSNHL patients.

Area of Science:

  • Biochemistry
  • Genetics
  • Otolaryngology

Background:

  • Early detection of inner ear damage is crucial for preserving hearing.
  • Current methods detect damage only after hearing loss occurs.
  • Circulating microRNA levels can indicate damage at distant lesion sites.

Purpose of the Study:

  • To develop a method for monitoring idiopathic sudden sensorineural hearing loss (ISSNHL) using circulating microRNA expression.
  • To analyze differences in microRNA levels between ISSNHL patients and healthy individuals.

Main Methods:

  • Real-time quantitative polymerase chain reaction (qPCR) was used.
  • Expression levels of circulating microRNAs were measured.
  • 21 ISSNHL patients and 24 healthy controls were included.

Main Results:

  • Five out of eight analyzed circulating microRNAs showed significantly different expression levels in ISSNHL patients compared to controls.
  • Circulating microRNA levels correlated with treatment outcomes and hearing ability.
  • A combination of miR-183, miR-210, miR-18b, and miR-23a achieved 80.95% sensitivity and 87.50% specificity.

Conclusions:

  • Circulating microRNA analysis offers a potential non-invasive method for ISSNHL detection and monitoring.
  • Specific microRNAs (miR-183, miR-210, miR-18b, miR-23a) show diagnostic potential for ISSNHL.
  • This approach could lead to earlier intervention and improved management of hearing loss.