The title for Figure 4 should be reconsidered as the term "mutually opposite signal modulation" is unclear and/or does not reflect the description to follow. Response: We have replaced the term mutually opposite signal modulation with: amplification of MC3R signaling and attenuation of GHSR1a signaling For Figure 5, the figure legend should clarified if 5-HT2c-GHSR1a dimerization produces reduced Ca++ accumulation with (as appears to be implied by the figure) or without ligand for each receptor. Response: To make it clearer that the 5-HT2C ligand is not required, while the ghrelin ligand is, we have changed the description to read: When dimerized with 5-HT2C, GHSR1a displays a 65% reduction in ghrelin-induced Ca2+ accumulation, with this effect not requiring the presence of a 5-HT2C ligand. Reviewer #2: The review includes an excellent explanation of GSHR1a dimerization with other receptors at the cellular and molecular level and also does a good job of explaining technical aspects of this type of work

PMID 28628108
Published Research Epithalon research traces back to Russian gerontology laboratories, where peptide bioregulators derived from pineal, thymic, and other tissue extracts were studied for their effects on aging biomarkers and lifespan in animal models
The full FDA 503A document contains additional substances across therapeutic categories
Aim for 1.2-1.6 grams of protein per kilogram of body weight during recovery
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