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The established colonies were stained with crystal violet (Sigma-Aldrich), quantified, and analyzed

Composed of the naturally occurring tripeptide glycyl-L-histidyl-L-lysine coordinated with a divalent copper ion, GHK-Cu serves as a valuable research tool for examining copper-mediated biochemical processes and matrix-associated signaling mechanisms

The data represent mean of multiple measurements +/- st.dev

For instance, manifestation of radiation toxicity at the cellular level involves simultaneous activation of various pro-survival and cytotoxic pathways in a ROS-dependent (indirect effect of radiation) and independent (direct effect of radiation) manner [37, 40, 100]