Illustration of Alzheimer's disease. Illustration of a healthy neuron (left), showing a microtubule and tau proteins (green). Tau is part of the protein family linked to microtubules (MAP proteins). One of tau proteins' main functions is to interact with tubulin in order to regulate the stability of axon microtubules. On the right, neuronal degeneration is linked to the build up of hyperphosphorylated tau proteins (yellow) between cells, causing tau protein filaments.
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