New Diabetes Drug Is Activated with Light

diabetes-blood-test-101022-02 — (Image credit: Dreamstime)

A new drug for type 2 diabetes could be activated exactly when it's needed by shining a blue light on the skin, and might one day give patients with the disease more control over their blood sugar levels, some researchers say.

In a new study, researchers adapted an existing diabetes drug so that it is active only when it is exposed to blue light. Once active, the drug was able to stimulate the release of the hormone insulin from pancreatic cells in a lab dish, the study found. (In people with type 2 diabetes, insulin doesn't work normally, or is not produced in sufficient amounts, which leads to high blood sugar levels.)

Because the study involved only cells in a lab dish, there's a long way to go before a treatment based on this drug could be available to patients, said study researcher Dr. David Hodson, of the Department of Medicine at Imperial College London in the United Kingdom. But in theory, patients could swallow such a drug, and when they need it, they could shine a blue light on their abdomen to activate the drug within the pancreas, the researchers said.

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Rachael is a Live Science contributor, and was a former channel editor and senior writer for Live Science between 2010 and 2022. She has a master's degree in journalism from New York University's Science, Health and Environmental Reporting Program. She also holds a B.S. in molecular biology and an M.S. in biology from the University of California, San Diego. Her work has appeared in Scienceline, The Washington Post and Scientific American.