Breakthrough in Tinnitus? Simple Blood Test Will Diagnose the Disease

A new study from the University of Connecticut found that levels of the protein prestin in the blood are about 50% higher in people suffering from tinnitus. The researchers emphasize that this is a small observational study that does not prove causality, but they see it as a first step toward future objective diagnosis.

A new study published in the journal Otolaryngology-Head and Neck Surgery points to a possible blood biomarker for diagnosing tinnitus. Scientists from the University of Connecticut tested blood samples from 82 adults and found that among those suffering from tinnitus, the concentration of a protein called prestin was about 50% higher compared to the control group. Prestin is a protein found in the outer hair cells of the inner ear's cochlea, and its function is essential for sensitive hearing. However, the researchers emphasize that this is a small observational study that does not prove causality, and the biomarker is not yet reliable enough for clinical use. The article notes that identifying the link to the prestin protein constitutes a significant first step that may lead in the future to the development of objective diagnosis and tailored treatments for tinnitus.