Testosterone can be administered parenterally , but it has more irregular prolonged absorption time and greater activity in muscle in enanthate , undecanoate , or cypionate ester form. These derivatives are hydrolyzed to release free testosterone at the site of injection; absorption rate (and thus injection schedule) varies among different esters, but medical injections are normally done anywhere between semi-weekly to once every 12 weeks. A more frequent schedule may be desirable in order to maintain a more constant level of hormone in the system.  Injectable steroids are typically administered into the muscle, not into the vein, to avoid sudden changes in the amount of the drug in the bloodstream. In addition, because estered testosterone is dissolved in oil, intravenous injection has the potential to cause a dangerous embolism (clot) in the bloodstream.
There is also a study of the brassinosteroid, 28-Homobrassinolide (HB), in rats which can also be used as a proxy for Laxogenin. The study concluded that HB stimulated protein synthesis and inhibited protein degradation in part by inducing Akt phosphorylation .  Akt is a serine/threonine kinase that signals downstream of growth factor receptors and phosphoinositide-3 kinase PI3K. Akt also stimulates glucose uptake, glycogen synthesis via Akt/mTOR and Akt/GSK-3β signaling networks.  In addition, HB triggered a selective anabolic response with minimal to no androgenic side-effects.