However, considering GHKs high affinity for copper (see below) and essentiality of copper for cell growth, it is virtually impossible to have copper-free GHK in a living system
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This matters because muscle is metabolically active tissue that supports a healthy metabolism long-term
Additionally, the RNA-sequencing of L-Cn-treated PBMCs and the GSE62595 dataset can only show the transcriptome changes at the overall level, further studies on exploring the modulation mechanism of L-Cn on a single set of cells should be taken to dissect the related signaling pathway
Think of it like this: if your research protocol calls for a 250 microgram (mcg) dose, but your reconstitution math is off by 20%, you're not actually administering 250mcg
In the meantime, iron metabolism mainly includes the interaction between transferrin (TF) and TF receptor (TFR), which can also be regulated by miRNAs