RE: Random vs. Form-wound stator coils for IFDs. Simply buy a motor that is rated for the service it is to perform. In North America, that would be a motor with an MG1 Part 31 endorsement on the nameplate. I'm not familiar with similar endorsements in the IEC world but there may well be one or more.
5a-Reductase (5AR) is the enzyme that catalyzes the conversion of (among others): 1  Testosterone â 5a-DHT. 2  Androstenedioneâ androsterone. 3  Cortisol â allo-tetrahydrocortisol.s early as 1986, it was suspected by some that 5a-DHT might be a primary contributing factor to prostate cancer growth. 15 5a-Reductase (5AR) is responsible for conversion of testosterone to 5a-dihydrotestosterone (5a-DHT).
5Î±-reductase inhibitors (5-ARIs) are a class of drugs with antiandrogen effects, used primarily in the treatment of benign prostatic hyperplasia (BPH) and androgenic alopecia.These agents inhibit the enzyme 5Î±-reductase, which is involved in the metabolic transformations of a variety of endogenous steroids.nhibition of 5Î±-reductase results in decreased conversion of testosterone to DHT by reducing the Î´4,5 double-bond. This, in turn, results in slight elevations in testosterone and estradiol levels. Gynecomastia, sexual dysfunction, and depression, are some possible side effects of 5Î±-reductase inhibition.