For over 60 years, metformin has been the standard treatment for managing blood sugar levels in patients with type 2 diabetes. Traditionally, it has been understood that metformin primarily lowers blood glucose by reducing glucose output in the liver. However, recent research from Baylor College of Medicine has unveiled a significant new understanding of how this drug operates within the brain.

On March 25, 2026, researchers published their findings in Science Advances, revealing that metformin also affects a specific brain pathway. This discovery challenges the long-held belief that its effects were limited to the liver and gut.

The study highlights that metformin works by turning off the protein Rap1 in the ventromedial hypothalamus (VMH), a critical brain region involved in regulating metabolism. Mice lacking Rap1 did not show improvement in diabetes-like conditions when treated with metformin, underscoring the importance of this protein in the drug’s efficacy.

Dr. Makoto Fukuda, a lead researcher, stated, “This discovery changes how we think about metformin.” He emphasized that while the liver and intestines require high concentrations of the drug to respond, the brain reacts to much lower levels of metformin.

Furthermore, the activation of SF1 neurons in the VMH by metformin suggests their crucial role in the drug’s action. This finding indicates that metformin’s effects on the brain could lead to innovative diabetes treatments that directly target this newly identified pathway.

In addition to its blood sugar-lowering effects, metformin is known for its other health benefits, including slowing brain aging. A notable study found that women taking metformin had a 30% lower risk of dying before age 90 compared to those taking sulfonylurea, further establishing its potential as a gerotherapeutic.

As research continues, the implications of these findings are significant. They not only enhance our understanding of metformin but also open the door to developing new diabetes treatments that could improve patient outcomes by targeting brain mechanisms.

With the ongoing exploration of metformin’s multifaceted effects, the medical community is eager to see how this knowledge will shape future diabetes therapies. The integration of brain health into diabetes treatment could revolutionize the approach to managing this chronic condition.

Сообщение Diabetes drug affects brain: How Does the Diabetes Drug Affect the Brain? появились сначала на YourTownNews.