Researchers at Mayo Clinic in Rochester have taken a first, major step toward the possibility of more direct treatments for high-risk conditions such as brain tumors and Alzheimer's disease.
In a study published in June in the scientific journal PLOS ONE, researchers say, in mice, that they've been able to get a synthetic peptide to cross the blood-brain barrier.
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Pulse on Health, published every Monday, is authored by health reporter Jeff Hansel. Follow him on Twitter @JeffHansel.