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The term "backdoor pathway" was coined by Auchus in 2004 [28] 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 ...
The subsequent intermediate products in the pathway are 5α-pregnane-3α,17α-diol-20-one, androsterone and 5α-androstane-3α,17β-diol. [ 9 ] [ 10 ] The primary feature of the androgen backdoor pathway is that 17α-hydroxyprogesterone (17-OHP) can be 5α-reduced and finally converted to 5α-dihydrotestosterone (DHT) via an alternative route ...
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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 [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 ...
Testosterone is the primary male sex hormone and androgen in males. [4] In humans, testosterone plays a key role in the development of male reproductive tissues such as testicles and prostate, as well as promoting secondary sexual characteristics such as increased muscle and bone mass, and the growth of body hair.
Only certain organs in the body, such as the gonads and the adrenal glands, produce the androgen testosterone. Testosterone is converted into dihydrotestosterone, a chemically similar androgen, in cells containing the enzyme 5-alpha reductase. Both androgens exert their influence through binding with the androgen receptor.
Like other nuclear receptors, the androgen receptor is modular in structure and is composed of the following functional domains labeled A through F: [49] A/B ) – N-terminal is a regulatory domain which is intrinsically disordered [ 50 ] and contains several key motifs/segments: [ 51 ]