GHK-Cu concentrations in human plasma decrease significantly with age, a finding that has driven considerable research interest in understanding the peptides role in tissue remodeling
However, HepG2 cells exposed to a combination of fatty acids exhibited a marked increase in GR gene expression (Longhitano et al
This included daily intravaginal administration of 90 mg progesterone gel (Crinone 8% gel, Merck Serono, Hertfordshire, UK), daily oral administration of 30 mg dydrogesterone (Duphaston, Abbott, Olst, the Netherlands), and weekly intramuscular injections of 125 mg progesterone (Progeston Depot, Tafong Pharmaceutical Co., Ltd., Changhua City, Taiwan)
min) and SOD (12.3 unit/g fresh weight