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Others are analogs of hormones, like growth hormone-releasing hormone analogs, which seek to prompt the body to produce more growth hormone instead of delivering the hormone itself

Attempts have been made to study the effects of TMAO on cardiac muscle at the molecular level

Higuchi T, Abe M, Yamazaki T, Okawa E, Ando H, Hotta S, et al

Important roles of dietary taurine, Creatine, carnosine, anserine and 4-Hydroxyproline in human nutrition and health

It would be of interest to determine what the acute response (i.e., timecourse) of these transporters, proteins and enzymes are following a standard BA dose, and whether these changes reflect or predict the longer-term changes in muscle carnosine content