in fibroblast culture models it stimulates collagen, elastin, and glycosaminoglycan synthesis at picomolar to nanomolar concentrations (10 to 10 M), and modulates metalloproteinase (MMP-1, MMP-2, MMP-9) activity and their inhibitors (TIMP-1, TIMP-2), functioning as a general regulator of extracellular matrix remodeling ( Mechanistic research establishes that GHK activates TGF- and integrin 1 pathways during tissue repair, attracts immune and endothelial cells to wound sites, and restores gene expression patterns toward a healthier fibroblast phenotype in models of aging and radiation damage ( A 2018 review in IJMS characterizes its role in collagen production, nerve outgrowth stimulation, and dermal stem cell marker expression ( For Research Use Only
Long-Term Health Consequences : Prolonged use may carry risks that have not been studied, including impacts on hormones or growth factors
Reduction of CoQ by electrons from CI is the last step of the electron transfers between sites across CI, which, as a whole, powers proton (H + ) translocation across the IMM into the intermembrane space (FIGURE 2)
J Toxicol Pathol 16,117
