id ase ▁regul ates ▁D - A sp art ate , ▁which ▁regul ates ▁the ▁secret ion ▁of ▁mel aton in , ▁pro la ct in , ▁test oster one , ▁l ute in izing ▁h orm one ▁and ▁growth ▁h orm one . ▁By ▁reg ulating ▁D - am ino ▁acid ▁ox id ase , ▁D - A sp art ate ▁can ▁also ▁be ▁reg ulated ▁and ▁control ▁h orm one ▁secret ion . ▁In cre ased ▁D - am ino ▁acid ▁ox id ase ▁activity ▁has ▁been ▁correl ated ▁with ▁psych iat ric ▁and ▁cogn itive ▁dis orders , ▁so ▁reducing ▁D - am ino ▁acid ▁ox id ase ▁can ▁have ▁th era pe ut ic ▁effects ▁on ▁these ▁dis orders . ▁D - am ino ▁acid ▁ox id ase ▁helps ▁produce ▁L - 6 - h ydro x yn or le uc ine , ▁which ▁then ▁generates ▁O map at ril at . ▁O map at ril at ▁in hib its ▁ang iot ens in - con ver ting ▁en zym e ▁and ▁neutral ▁end ope pt id ase ▁and ▁effectively ▁reduces ▁hy pert ension . ▁D - am ino ▁acid ▁ox id ase ▁also ▁may ▁have ▁an ▁effect ▁on ▁pain ▁stim uli , ▁but ▁it ▁is ▁not ▁confirmed ▁yet . ▁ ▁See ▁also ▁ ▁DA O A - AS 1 ▁D - am ino ▁acid ▁de h ydro gen ase ▁D - am ino ▁acid ▁ox id ase ▁activ ator ▁D - as part ate ▁ox id ase ▁Diam