Blood 2006, 108, 13881394
The documented mechanisms are: VEGF stimulation in dermal fibroblasts that supports the microvascular network feeding the follicle, collagen and glycosaminoglycan synthesis at the follicular basement membrane, anti-inflammatory signaling that calms the chronic micro-inflammation associated with androgenetic alopecia, and direct follicular signaling that extends the anagen growth phase
This is possible, but given that innate inflammation in the form of microglial activation and macrophage infiltration is a universal response to most types of CNS injury (Rivest, 2009), we would argue that it remains equally plausible that in MS microglia/macrophages are instead reacting to some persistent underlying pathological process in an attempt to limit and repair the expanding white matter damage
Mast cell proteases
Examples include a man with high occupational stress who saw better progressive motility after an 8-week stress-targeting peptide regimen paired with antioxidant therapy
A 2023 review in the International Journal of Molecular Sciences identified three primary mechanisms through which GHK-Cu promotes hair growth: Fibroblast activation: Stimulates fibroblasts in the dermal papilla to support follicle development and nutrient delivery