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The term "backdoor pathway" was coined by Auchus in 2004 [25] and was described as 5α-reduction of 17α-hydroxyprogesterone (17OHP) which is a first step in a pathway that ultimately leads to the production of dihydrotestosterone (DHT). and defined as a route to DHT that: (1) bypasses conventional intermediates androstenedione (A4) and T; (2 ...
Dihydrotestosterone (DHT, 5α-dihydrotestosterone, 5α-DHT, androstanolone or stanolone) is an endogenous androgen sex steroid and hormone primarily involved in the growth and repair of the prostate and the penis, as well as the production of sebum and body hair composition.
The androgen backdoor pathway (red arrows) roundabout testosterone embedded in within conventional androgen synthesis that lead to 5α-dihydrotestosterone through testosterone. [ 7 ] [ 8 ] [ 9 ] 5α-Pregnan-17α-ol-3,20-dione (17-OH-DHP) is a progestogen , i.e., it binds to the progesterone receptors .
Download QR code; In other projects ... The androgen backdoor pathway (red arrows) embedded in the known pathways that lead to 5α-dihydrotestosterone synthesis.
English: *Enzymes, their cellular location, substrates and products in human steroidogenesis. Shown also is the major classes of steroid hormones: progestagens, mineralocorticoids, glucocorticoids, androgens and estrogens.
20α-Hydroxysteroid dehydrogenase – progestogen synthesis and metabolism; 20β-Hydroxysteroid dehydrogenase – progestogen synthesis and metabolism; Steroid numbering. Steroid reductases. 5α-Reductase (1, 2, 3) – androgen and neurosteroid synthesis, progestogen metabolism; 5β-Reductase – androgen and progestogen metabolism ...
Dihydrotestosterone increased the number of BrdU cells, while flutamide inhibited these cells. Moreover, estrogens had no effect. This research demonstrates how androgens can increase AHN. [19] Researchers also examined how mild exercise affected androgen synthesis which in turn causes AHN activation of N-methyl-D-aspartate (NMDA) receptors.
Also involved into a backdoor pathway from 17α-hydroxyprogesterone to dihydrotestosterone by 3α-reduction of a metabolic intermediary, 17α-hydroxydihydroprogesterone, into another intermediary, 17α-hydroxyallopregnanolone. [21] May be involved in the pathophysiology of PCOS Tooltip polycystic ovary syndrome. [12]