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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 .
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.
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]
The androgen backdoor pathway (red arrows) roundabout testosterone embedded in within conventional androgen synthesis that lead to 5α-dihydrotestosterone through testosterone [27] [28] [29] CAH is a genetic disorder characterized by impaired production of cortisol in the adrenal glands. [1] [4] Production of cortisol begins at week 8 of fetal ...
3-Oxo-5α-steroid 4-dehydrogenase 1 is an enzyme that in humans is encoded by the SRD5A1 gene. [5] It is one of three forms of steroid 5α-reductase.. Steroid 5α-reductase (EC 1.3.99.5) catalyzes, among other reactions, the conversion of testosterone into the more potent androgen, 5α-dihydrotestosterone (DHT).
The androgen backdoor pathway (red arrows) embedded in the known pathways that lead to 5α-dihydrotestosterone synthesis. Items portrayed in this file depicts.