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Metformin drug prescribed to 120 million worldwide found to have surprise impact on brain
LADbible • • health
Key Points:
- Researchers at Baylor College of Medicine discovered that Metformin, a common diabetes drug, impacts the brain by turning off the Rap1 protein in the ventromedial hypothalamus, which is crucial for regulating glucose metabolism.
- Experiments with genetically modified mice lacking Rap1 in this brain region showed that Metformin was ineffective in lowering blood sugar, indicating the drug's anti-diabetic effects depend on this brain pathway.
- Injecting Metformin directly into the brains of mice caused a significant blood sugar drop at much lower doses than oral ingestion, highlighting the brain's key role in the drug’s mechanism.
- This new understanding could lead to the development of novel diabetes treatments targeting the brain and may also explain Metformin’s other benefits, such as slowing brain aging.
- Further research is planned to explore how the Rap1 signaling pathway in the brain contributes to Metformin’s broader health effects beyond blood sugar control.
