Researchers from Shibaura Institute of Technology in Japan have developed novel vitamin K analogues that show promising potential for treating neurodegenerative diseases like Alzheimer’s and Parkinson’s. By conjugating vitamin K with retinoic acid and other chemical modifications, they created compounds that are approximately three times more effective at inducing neuronal differentiation than natural vitamin K. The study revealed that these analogues work through metabotropic glutamate receptor 1 (mGluR1), a mechanism previously linked to synaptic function and neurodegeneration. Animal studies demonstrated that the lead compound successfully crosses the blood-brain barrier and converts to the bioactive form MK-4 more efficiently than natural vitamin K. This research offers a potential regenerative therapy approach that could replenish lost neurons and slow or reverse the progression of neurodegenerative diseases.
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