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Although the extent of myotube hypertrophy induced by IGF-1, EE, and testosterone was similar through the IGF-1 signal pathway, we found that IGF-1 synergistically suppressed MRF4, MAFbx, MuRF1, and MSTN
Does not raise stress hormones Cortisol, ACTH, and prolactin stay flat at standard doses
Farabaugh SM, Boone DN, Lee AV