Similar to glutamine, arginine stimulates cellular pathways [66] that enhance mucosal cell proliferation, cytoprotection, and recovery
This matters for reading the evidence: a paper studying recombinant full-length T4 is not automatically evidence about a fragment sold as TB-500, and product labeling in the research-chemical channel is inconsistent enough that the exact contents of any given vial cannot be assumed
Glucocorticoids induce differentiation of a specifically activated, anti-inflammatory subtype of human monocytes
Therefore, we draw largely on adjacent literatures that support plausible mechanistic links, namely, neuroinflammation, gutbrain axis dysregulation, and sleep disruption, while recognising that these fields often lack consistent definitions and measures of brain fog