3α-Androstanediol

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3α-Androstanediol
3alpha-Androstanediol.svg
Names
IUPAC name
(3R,5S,8R,9S,10S,13S,14S,17S)-10,13-Dimethyl-2,3,4,5,6,7,8,9,11,12,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthrene-3,17-diol
Other names
Hombreol
Identifiers
1852-53-5
ChemSpider 15039
Jmol interactive 3D Image
PubChem 15818
Properties
C19H32O2
Molar mass 292.46 g·mol−1
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references

3α-Androstanediol (often abbreviated as 3α-diol), also known as 5α-androstane-3α,17β-diol, is an endogenous inhibitory androstane neurosteroid and weak androgen, and a major metabolite of dihydrotestosterone (DHT).[1][2][3] As a neurosteroid, it acts as a potent positive allosteric modulator of the GABAA receptor,[4] and has been found to have rewarding,[5][6] anxiolytic,[7] pro-sexual,[8] and anticonvulsant effects.[9][10] As androgens such as testosterone and DHT are known to have many of the same effects as 3α-diol and are converted into it in vivo, it is thought that this compound may in part be responsible for said effects.[5][6][7][10] Relative to its isomer 3β-androstanediol, which is a potent estrogen, 3α-androstanediol has substantially lower, though still significant affinity for the estrogen receptors, with a several-fold preference for ERβ over ERα.[11][12]

See also[edit]

References[edit]

  1. ^ Reddy DS (2010). "Neurosteroids: endogenous role in the human brain and therapeutic potentials". Prog. Brain Res. 186: 113–37. doi:10.1016/B978-0-444-53630-3.00008-7. PMC 3139029. PMID 21094889. 
  2. ^ Jin Y, Penning TM (March 2001). "Steroid 5alpha-reductases and 3alpha-hydroxysteroid dehydrogenases: key enzymes in androgen metabolism". Best Pract. Res. Clin. Endocrinol. Metab. 15 (1): 79–94. doi:10.1053/beem.2001.0120. PMID 11469812. 
  3. ^ Penning TM, Bauman DR, Jin Y, Rizner TL (February 2007). "Identification of the molecular switch that regulates access of 5alpha-DHT to the androgen receptor". Mol. Cell. Endocrinol. 265-266: 77–82. doi:10.1016/j.mce.2006.12.007. PMC 1857325. PMID 17223255. 
  4. ^ Reddy DS, Jian K (September 2010). "The testosterone-derived neurosteroid androstanediol is a positive allosteric modulator of GABAA receptors". J. Pharmacol. Exp. Ther. 334 (3): 1031–41. doi:10.1124/jpet.110.169854. PMC 2939675. PMID 20551294. 
  5. ^ a b Frye CA (February 2007). "Some rewarding effects of androgens may be mediated by actions of its 5alpha-reduced metabolite 3alpha-androstanediol". Pharmacol. Biochem. Behav. 86 (2): 354–67. doi:10.1016/j.pbb.2006.10.003. PMC 1857333. PMID 17112575. 
  6. ^ a b Rosellini RA, Svare BB, Rhodes ME, Frye CA (November 2001). "The testosterone metabolite and neurosteroid 3alpha-androstanediol may mediate the effects of testosterone on conditioned place preference". Brain Res. Brain Res. Rev. 37 (1-3): 162–71. doi:10.1016/s0165-0173(01)00116-3. PMID 11744084. 
  7. ^ a b Fernández-Guasti A, Martínez-Mota L (September 2005). "Anxiolytic-like actions of testosterone in the burying behavior test: role of androgen and GABA-benzodiazepine receptors". Psychoneuroendocrinology 30 (8): 762–70. doi:10.1016/j.psyneuen.2005.03.006. PMID 15919582. 
  8. ^ Sánchez Montoya EL, Hernández L, Barreto-Estrada JL, Ortiz JG, Jorge JC (November 2010). "The testosterone metabolite 3α-diol enhances female rat sexual motivation when infused in the nucleus accumbens shell". J Sex Med 7 (11): 3598–609. doi:10.1111/j.1743-6109.2010.01937.x. PMC 4360968. PMID 20646182. 
  9. ^ Reddy DS (March 2004). "Anticonvulsant activity of the testosterone-derived neurosteroid 3alpha-androstanediol". NeuroReport 15 (3): 515–8. doi:10.1097/00001756-200403010-00026. PMID 15094514. 
  10. ^ a b Reddy DS (2004). "Testosterone modulation of seizure susceptibility is mediated by neurosteroids 3alpha-androstanediol and 17beta-estradiol". Neuroscience 129 (1): 195–207. doi:10.1016/j.neuroscience.2004.08.002. PMID 15489042. 
  11. ^ Baker ME (2002). "Recent insights into the origins of adrenal and sex steroid receptors". J. Mol. Endocrinol. 28 (3): 149–52. doi:10.1677/jme.0.0280149. PMID 12063181. 
  12. ^ Kuiper, George G. J. M.; Carlsson, Bo; Grandien, Kaj; Enmark, Eva; Häggblad, Johan; Nilsson, Stefan; Gustafsson, Jan-Åke (1997). "Comparison of the Ligand Binding Specificity and Transcript Tissue Distribution of Estrogen Receptors α and β". Endocrinology 138 (3): 863–870. doi:10.1210/endo.138.3.4979. ISSN 0013-7227.