ChestRockwell
Well-known Member
Not entirely correct about the nandrolone part.
AI's do work on nandrolone but not entirely bc some of the nandrolone is aromatized in the testes. AI's cannot cross the blood testes barrier and therefore don't work on the testicular aromatization much like that of HCG. To say thy do absolutely nothing for nandrolone though isn't accurate.
From what I understand, based on the following literature, nandrolone's conversion is related to estren (19-Nor-4-androstene-3α,17β-diol) and if you look at the second study the researchers actually show that there was zero impact on nandrolone's conversion to estrogen using an aromatase blocker (aminoglutethimide).
And this also is in line with my anecdotal experience over the years with many of my athletes. About the only thing that "works" is using nolvadex as a "band-aid" until nandrolone can be lowered below the problematic threshold and/or removed altogether.
J. Shields-Botella, I Duc, E. Duranti, F. Puccio, P. Bonnet, R. Delansorne, J. Paris. An overview of nomegestrol acetate selective receptor binding and lack of estrogenic action on hormone-dependent cancer cells. Journal of Steroid Biochemistry & Molecular Biology 87 (2003) 111-122.
J. Botella,t E. Duranti, V. Viader, I. Duc, R. Delansorne, J. Paris. Lack of Estrogenic Potential of Progesterone- or 19-Nor-progesterone-derived Progestins as Opposed to Testosterone or 19-Nor- testosterone Derivatives on Endometrial Ishikawa Cells. Steroid Biochem. Molec. Biol. Vol. 55, No. 1, pp. 77-84, 1995.