The first is extracellular matrix biology: fibroblast culture and rat wound-chamber work from the Maquart and Simeon groups reported that GHK-Cu stimulates collagen, glycosaminoglycan and small proteoglycan synthesis while simultaneously upregulating matrix metalloproteinase-2 and its tissue inhibitors, a combined synthesis-and-turnover signature unusual among matrix-active compounds
Acetyl-L-carnitine, for example, can be used in doses up to 2,500 milligrams per day while the dose for L-carnitine L-tartrate, a form typically used to enhance athletic performance, can range all the way up to 4,000 milligrams
Peptides are short chains of amino acids, also known as the building blocks of proteins
Cancer Res 55:44654470 Yang W, Shen Y, Wei J, Liu F (2015) MicroRNA-153/Nrf-2/GPx1 pathway regulates radiosensitivity and stemness of glioma stem cells via reactive oxygen species