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American Focus > Blog > Tech and Science > Surprise Discovery About Sugar in The Brain Could Help Fight Alzheimer’s : ScienceAlert
Tech and Science

Surprise Discovery About Sugar in The Brain Could Help Fight Alzheimer’s : ScienceAlert

Last updated: July 5, 2025 12:30 pm
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Surprise Discovery About Sugar in The Brain Could Help Fight Alzheimer’s : ScienceAlert
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Unlocking the Potential of Glycogen in Fighting Neurodegeneration

Recent research has shed new light on the role of stored glucose in the brain and its potential impact on the pathological degeneration of neurons, particularly in conditions like Alzheimer’s disease. Scientists have discovered significant interactions between tau proteins and glucose stored in the form of glycogen, challenging previous beliefs about the functions of glycogen in the brain.

A study led by the Buck Institute for Research on Aging has revealed that glycogen, traditionally seen as an energy backup for the liver and muscles, plays a crucial role in neurodegeneration. Excessive levels of glycogen were found in tauopathy models in fruit flies and in the brain cells of individuals with Alzheimer’s disease, indicating a potential link between glycogen and the progression of the disease.

The researchers identified a key mechanism involving tau proteins disrupting the normal breakdown and utilization of glycogen in the brain, leading to harmful build-ups of both tau and glycogen while compromising the defense mechanisms of neurons. By increasing the activity of the enzyme glycogen phosphorylase (GlyP), which converts glycogen into usable fuel, the researchers were able to mitigate cell damage and extend the lifespan of tauopathy model flies.

Additionally, experiments with a low-protein diet showed promising results in reducing brain damage and extending lifespan in fruit flies with tauopathy, suggesting that metabolic shifts induced by dietary changes can enhance GlyP activity. Furthermore, the development of a drug based on the 8-Br-cAMP molecule mimicked the effects of dietary restriction, pointing towards potential therapeutic interventions for glycogen and tau aggregation in the brain.

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These findings offer hope for novel therapeutic strategies targeting the inner chemistry of neurons to combat age-related decline and neurodegenerative conditions like Alzheimer’s disease. By understanding and potentially rebalancing the brain’s “hidden sugar code,” researchers believe that powerful tools for dementia treatment could be unlocked.

The study, published in Nature Metabolism, highlights the importance of exploring the intricate relationship between glycogen, tau proteins, and neurodegeneration, paving the way for innovative approaches to treating and preventing cognitive decline.

TAGGED:AlzheimersbrainDiscoveryfightScienceAlertSugarSurprise
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