Protein Phosphatase 2A (PP2A) plays a critical role in Alzheimer’s disease (AD), especially in relation to tau pathology.
-PP2A dephosphorylates tau, thus reducing its toxicity.
-MID1 Negatively Regulates PP2A
-In AD, PP2A activity is decreased, leading to accumulation of hyperphosphorylated tau.
-Amyloid-β (Aβ) peptides may inhibit PP2A, indirectly promoting tau pathology.
-Aβ and tau pathologies are interconnected, and PP2A sits at a crossroads of both.
Some natural products that might upregulate PP2A:
-resveratrol
-Sodium selenate
-Berberine
-Fisetin
-Metformin (via indirect mechanisms)
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