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S2CID 205266224
at the University of Arizona established it as a superagonist at melanocortin receptors with substantially greater potency than native -MSH in melanocyte stimulation assays, and confirmed the cyclic lactam structural feature as the key determinant of its enhanced receptor affinity and metabolic stability
Estrogen, testosterone, cortisol, and insulin all respond to fluctuating GH levels
A placebo was applied to the other side
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