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Also, intranasal administration of the secretome of cortical neural stem cells to 5 FAD mice reduces amyloid-beta accumulation and ameliorates memory function [229]

Warning Signs of Improper Dosing TTaking too little B12 may leave deficiency-related nerve symptoms untreated, while improper use can also lead to unwanted effects or missed diagnoses

doi: 10.1002/advs.202505778 145 ChenYKongSWangYDingYPengBXuJ

Mechanistic studies have found that DHEA modulates insulin signaling pathways, increasing the insulin sensitivity of liver, muscle, and fat cells, which may explain its beneficial metabolic effects (Aoki 2018