OHSU in the news

Does serotonin play a role in tinnitus? Mouse study raises question

Medical News Today April 25, 2026
OHSU research that finds serotonin, a brain chemical best known for regulating mood, can overstimulate neurons in a key hearing center. Laurence Trussell, Ph.D., says, “If those neurons were just firing constantly even though there was no sound, the brain would say that there’s a sound there.”

When Can I Start Exercising After a Neurological Diagnosis?

Brain & Life April 24, 2026
A story in Brain & Life discusses the importance of exercise after a neurological disease diagnosis. Fay Horak, Ph.D., says, “If I was diagnosed with a neurological illness, the first thing I’d do is seek out a physical therapist with expertise in that disease.”

CDC delay of infant hepatitis B shot likely to raise infections, studies show

Newsday April 24, 2026
Study shows the federal administration’s decision to drop the long-standing recommendation that newborns receive a hepatitis B vaccine within 24 hours of birth will likely lead to hundreds of additional infections among children, along with more cases of liver cancer, deaths and millions in added health care costs. Eric Hall, Ph.D., says researchers shared a preliminary version of their findings in public comments ahead of the December meeting so committee members could review the data: “We noticed that the committee did not have the evidence they needed to inform their decision. But this group kind of blew past all that and didn’t make any effort to fill the evidence gaps that they might have had”

What’s behind phantom ear ringing? Scientists find the brain switch

The Oregonian April 23, 2026
The Oregonian reports on OHSU research that finds serotonin, a brain chemical best known for regulating mood, can overstimulate neurons in a key hearing center. Laurence Trussell, Ph.D., says, “If those neurons were just firing constantly even though there was no sound, the brain would say that there’s a sound there.”

9 Myths About the 'Stress Hormone' Cortisol

Time Magazine April 23, 2026
In a Time magazine story about the role of the “stress hormone” cortisol, Maria Fleseriu, M.D., says, “Cortisol is adaptive and protective within its normal range and circadian rhythm. Cortisol itself isn’t pathologic — chronic dysregulation is.”
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