How Brain Cells Activate Their Emergency Defence System

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Brain cells use NRF2 as a master switch that activates over 200 protective proteins when oxidative stress threatens cellular machinery. This ancient defence system varies dramatically across brain regions and declines with age, affecting how well neurons survive metabolic challenges.

How NRF2 Breaks Free From Its Molecular Prison

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KEAP1 acts like molecular handcuffs, keeping the stress-response protein NRF2 locked away until oxidative stress strikes. When cellular damage occurs, chemical modifications to KEAP1 release NRF2 to activate protective genes throughout the cell.

How NRF2 Orchestrates Your Cells’ Chemical Defence System

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NRF2 acts as your cells’ master switch for detoxification, activating dozens of protective enzymes when it detects harmful compounds or oxidative stress. This ancient defence system coordinates Phase II detoxification enzymes that tag toxins for removal and help cells survive chemical challenges.