Researchers at the London School of Hygiene and Tropical Medicine have discovered a happy accident: A class of drugs typically used to treat diabetes could also reduce the risk of Parkinson’s disease in its users. The drugs have since been tested more to uncover their potential for treating Parkinson’s, and the findings of the study have been published in the journal PLOS Medicine.

The antidiabetes drug group known as glitazones, usually taken in the form of rosiglitazone or pioglitazone, was found to lower the incidence of Parksinson’s by 28 percent. Patients who were receiving medication for diabetes that did not involve glitazones did not observe the same effect.

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