The Definitive Guide to steroids
-methyltestosterone boosts urine excretion of creatinine and guanidinoacetic acid (one hundred sixty). this implies that it raises arginine:glycine amidinotransferase (AGAT) expression: the enzyme to blame for the speed-restricting action in creatine biosynthesis by forming guanidinoacetic acid – the immediate precursor of creatine (161). whilst