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Arginine is a basic amino acid with a guanidinium group that carries a positive charge at physiological pH

R.SharpeA.McGregorL.BekkaouiD.et al

doi: 10.1016/S2213-8587(24)00272-9

S.JangJ

A 2021 study in Nature highlights PC as a structural cornerstone of cellular membranes, particularly in the brain, where it supports neuron signaling and cell membrane integrity, having a pro-neurogenic effect. A broader review in The Journal of Clinical Investigation explains how phospholipids like PC and PE regulate immune cell behavior, including degranulation (the release of antimicrobial or inflammatory molecules) and cytokine production (proteins that direct immune activity)