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Over a period of time, cells that are exposed to continuous signaling can downregulate their receptors as a protective mechanism
BB mainly contributed to sections Introduction, BloodBrain Barrier, BloodCerebrospinal Fluid Barrier, and Neurovascular Unit, and Selenium Transport to The Brain Selenoprotein P and Low Molecular Weight Selenium-Species. BM mainly contributed to sections Introduction, Selenium Transport to The Brain Selenoprotein P and Low Molecular Weight Selenium-Species, and Conclusion and Perspectives. All authors contributed to the editing and discussion and agreed to submit the manuscript in its current state
Conservative titration protocol: Providers begin patients at low doses and increase gradually based on individual tolerance and progress, not a one-size-fits-all schedule
Vitamin B12 belongs to the water-soluble B-complex group but differs from other water-soluble vitamins by having substantial hepatic storage capacity (25 mg in the liver)
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