So what do we want
--- The Dosing Protocol The study used a locally administered protocol, injecting near the joint rather than systemic subcutaneous injection
However, in this pathway, melatonin increases the concentration and activation of ERK, a molecule that regulates protein transcription in the cell nucleus, by acting on PKA and decreasing the formation of cAMP that induces negative regulation of the expression of mitogenic proteins and the antiapoptotic gene Bcl-2 [28,30]
CohnWMelnikMHuangCTeterBChandraSZhuCet al
This facilitates formation of a new root cap after removal or damage of the previous root cap, which plays an important role in root growth providing root defense, participating in geotropic response, and possibly in other tropisms
61,62 This is referred to as functional selectivity as a phenomenon, and a ligand that engages only some of the responses available to a receptor is a functionally selective (or, in other words, biased) ligand