Steroid hormones
Testosterone enanthate (only 3 mg per kg per week) increased GH levels by 22% and IGF-1 levels by 21% whereas oral stanozolol (0. steroid hormones Bodybuilding pics. 1mg per kg per day) had no effect whatsoever on GH or IGF-1 levels. A couple of notes about this study. It was only 2-3 weeks long and although stanozolol did not effect GH or IGF-1 levels, it had a similar effect on urinary nitrogen levels. steroid hormones Anabolic steroids chemistry. Urinary nitrogen is fraught with confounding variables when used to determine skeletal muscle anabolism and/or catabolism and thus should not be considered an accurate indicator of skeletal muscle growth. Using labeled tracer amino acids as well as 3-methylhistidine is a far more reliable way of determining actual contractile protein synthesis and breakdown respectively. Nevertheless, this study may well explain the observation that many bodybuilders do not respond as well to testosterones with complete estrogenic blockade. steroid hormones Steroid pics. Too much Cytadren or especially Arimidex will prevent gyno and probably a little water bloat, but it will also cut into your muscle gains by virtue of a less robust GH burst activity and lower subsequent IGF-1 levels. In vitro have also shown that some androgens increase muscle satellite cells sensitivity to fibroblast growth factor and IGF-1. 10 Remember that satellite cells are required for a muscle cell to grow. Bovine muscle satellite cells were able to fuse 20% more readily when treated with trenbolone and estradiol. 11,12 One may surmise that it was not only the trenbolone but also the estradiol that was causing the significantly increased feed efficiency and muscle growth by way of increased GH and IGF-1 production both in the liver as well as in muscle cells. From these studies it is clear that IGF-1 is critical to get maximum anabolic activity from androgens. This means that androgens that increase GH production (i. e. those that aromatize to some degree) will most likely give you the greatest and most rapid gains in muscle mass. Which androgens are tops for BIG gains?So the question now stands, which androgens are best with consideration to GH for maximum muscle tissue growth? Well, the answer is probably the testosterones, specifically esterified versions such as enanthate, cypionate, etc. . Esterification of the testosterone molecule increases it's lipid solubility and leads to a more prolonged release of the drug into the blood stream after deposition in fat tissue.
Steroid hormones
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