In the depressive brain, activation of mTOR is reduced, which subsequently decreases the release of BDNF and the synthesis of synaptic proteins (Jourdi et al., 2009)
Snchez-Gloria JL, Martnez-Olivares CE, Rojas-Morales P, Hernndez-Pando R, Carb R, Rubio-Gayosso I, et al
It is known that endogenous levels of GHK peptide naturally decline with age, from roughly 200 ng/ml at age 20 to 80 ng/ml at age 60 [3], and studies have shown that GHK-Cu can reset gene expression of human cells to a healthier state, which has led to breakthroughs in tissue regeneration and wound healing [4, 5, 6]
GLP-1 medications can be expensive, and insurance coverage varies
And importantly, skeletal muscle does not appear to have a functional GLP-1 receptor, meaning these molecular effects are being mediated through indirect signaling pathways that we do not yet fully understand