Two studies link elevated ear protein levels in blood to tinnitus

When Dr. Kourosh Parham conceived a first-of-its-kind blood test for tinnitus, he knew further research was needed to confirm a link between a unique ear protein and the common hearing disorder. To validate his theory, the professor of surgery at UConn Health (UCH), Division of Otolaryngology-Head & Neck Surgery, teamed up with fellow UCH physician-scientists to conduct two clinical trials.

Five years later, the findings of their studies, published in the journals Otology & Neurotology and Otolaryngology–Head & Neck Surgery, respectively, offer the strongest evidence yet that the protein, called prestin, may play a role in tinnitus. Parham hopes the breakthrough will spark larger studies and the development of a drug to treat the condition.

Prestin links ear cells and tinnitus

In both studies, Parham and fellow researchers Dr. Daniel Roberts, a neurotologist in the Department of Surgery’s Division of Otolaryngology–Head & Neck Surgery, and Dr. Erika Skoe, a hearing scientist in the Department of Speech, Language and Hearing Sciences, found elevated levels of prestin in individuals with tinnitus.

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