5β-雙氫睾酮

5β-雙氫睾酮
	IUPAC名; (5R,8R,9S,10S,13S,14S,17S)-17-Hydroxy-10,13-dimethyl-1,2,4,5,6,7,8,9,11,12,14,15,16,17-tetradecahydrocyclopenta[a]phenanthren-3-one
	系統名; (1S,2R,7R,10R,11S,14S,15S)-14-hydroxy-2,15-dimethyltetracyclo[8.7.0.02,7.011,15]heptadecan-5-one; (1S,2R,7R,10R,11S,14S,15S)-2,15-二甲基-14-羥基四環[8.7.0.02,7.011,15]-5-十七酮
別名	5β-Androstan-17β-ol-3-one; Etiocholan-17β-ol-3-one; 5β-Dihydrotestosterone; 5β-DHT
識別
CAS號	571-22-2
PubChem	11302
ChemSpider	10827
SMILES	C[C@]12CCC(=O)C[C@H]1CC[C@@H]3[C@@H]2CC[C@]4([C@H]3CC[C@@H]4O)C;
ChEBI	2150
性質
化學式	C19H30O2
摩爾質量	290.44 g·mol−1
	若非註明，所有數據均出自標準狀態（25 ℃，100 kPa）下。

5β-雙氫睾酮（英語：5β-Dihydrotestosterone，簡稱為5β-DHT，也稱為5β-雄甾烷-17β-醇-3-酮，5β-androstan-17β-ol-3-one，或本膽烷-17β-醇-3-酮，etiocholan-17β-ol-3-one）是一種本膽烷類（5β-雄烷）甾體物質，和睾酮的無雄激素活性的代謝產物，由肝臟和骨髓中的5β還原酶生成^[1]^[2]，同時也是生成3α-本膽烷二醇和3β-本膽烷二醇（分別由3α-和3β-羥基類固醇脫氫酶催化）的底物，之後再分別轉化為本膽烷醇酮和表本膽烷醇酮（由17β-羥基類固醇脫氫酶催化）^[3]^[4]。和其表觀異構體5α-雙氫睾酮（5α-DHT或簡稱DHT）不同，5β-DHT只有非常弱的結合雄激素受體的能力^[1]。作為主要的睾酮代謝產物，5β-DHT的A環和B環形之間的「順式」結構使兩個環在空間上形成了一個角度，故而缺乏了雄激素活性^[5]。5β-DHT和5α-DHT的另一個不同點是，5β-DHT還缺乏神經甾體活性^[6]^[7]但其代謝產物，本膽烷醇酮卻有神經甾體活性^[8]^[9]。

另見

參考文獻

^ ^1.0 ^1.1 Hormones, Brain and Behavior Online. Academic Press. 18 June 2002: 2262– [2019-07-15]. ISBN 978-0-08-088783-8. （原始內容存檔於2018-03-27）.
^ H.-J. Bandmann; R. Breit; E. Perwein. Klinefelter's Syndrome. Springer Science & Business Media. 6 December 2012: 293– [2019-07-15]. ISBN 978-3-642-69644-2. （原始內容存檔於2018-12-02）.
^ Shlomo Melmed; Kenneth S. Polonsky; P. Reed Larsen; Henry M. Kronenberg. Williams Textbook of Endocrinology. Elsevier Health Sciences. 30 November 2015: 711–. ISBN 978-0-323-29738-7.
^ Anita H. Payne; Matthew P. Hardy. The Leydig Cell in Health and Disease. Springer Science & Business Media. 28 October 2007: 186–. ISBN 978-1-59745-453-7.
^ B.A. Cooke; H.J. Van Der Molen; R.J.B. King. Hormones and their Actions. Elsevier. 1 November 1988: 173–. ISBN 978-0-08-086077-0.
^ Current Topics in Membranes and Transport. Academic Press. 1 February 1988: 169– [2019-07-15]. ISBN 978-0-08-058502-4. （原始內容存檔於2018-12-20）.
^ Abraham Weizman. Neuroactive Steroids in Brain Function, Behavior and Neuropsychiatric Disorders: Novel Strategies for Research and Treatment. Springer Science & Business Media. 1 February 2008: 210–. ISBN 978-1-4020-6854-6.
^ Li P, Bracamontes J, Katona BW, Covey DF, Steinbach JH, Akk G. Natural and enantiomeric etiocholanolone interact with distinct sites on the rat alpha1beta2gamma2L GABAA receptor. Mol. Pharmacol. June 2007, 71 (6): 1582–90. PMC 3788649 . PMID 17341652. doi:10.1124/mol.106.033407.
^ Kaminski RM, Marini H, Kim WJ, Rogawski MA. Anticonvulsant activity of androsterone and etiocholanolone. Epilepsia. June 2005, 46 (6): 819–27. PMC 1181535 . PMID 15946323. doi:10.1111/j.1528-1167.2005.00705.x.

[AcademicPress2002-1] 1.0 ^1.1 Hormones, Brain and Behavior Online. Academic Press. 18 June 2002: 2262– [2019-07-15]. ISBN 978-0-08-088783-8. （原始內容存檔於2018-03-27）.

[BandmannBreit2012-2] H.-J. Bandmann; R. Breit; E. Perwein. Klinefelter's Syndrome. Springer Science & Business Media. 6 December 2012: 293– [2019-07-15]. ISBN 978-3-642-69644-2. （原始內容存檔於2018-12-02）.

[MelmedPolonsky2015-3] Shlomo Melmed; Kenneth S. Polonsky; P. Reed Larsen; Henry M. Kronenberg. Williams Textbook of Endocrinology. Elsevier Health Sciences. 30 November 2015: 711–. ISBN 978-0-323-29738-7.

[PayneHardy2007-4] Anita H. Payne; Matthew P. Hardy. The Leydig Cell in Health and Disease. Springer Science & Business Media. 28 October 2007: 186–. ISBN 978-1-59745-453-7.

[CookeMolen1988-5] B.A. Cooke; H.J. Van Der Molen; R.J.B. King. Hormones and their Actions. Elsevier. 1 November 1988: 173–. ISBN 978-0-08-086077-0.

[AcademicPress1988-6] Current Topics in Membranes and Transport. Academic Press. 1 February 1988: 169– [2019-07-15]. ISBN 978-0-08-058502-4. （原始內容存檔於2018-12-20）.

[Weizman2008-7] Abraham Weizman. Neuroactive Steroids in Brain Function, Behavior and Neuropsychiatric Disorders: Novel Strategies for Research and Treatment. Springer Science & Business Media. 1 February 2008: 210–. ISBN 978-1-4020-6854-6.

[pmid17341652-8] Li P, Bracamontes J, Katona BW, Covey DF, Steinbach JH, Akk G. Natural and enantiomeric etiocholanolone interact with distinct sites on the rat alpha1beta2gamma2L GABAA receptor. Mol. Pharmacol. June 2007, 71 (6): 1582–90. PMC 3788649 . PMID 17341652. doi:10.1124/mol.106.033407.

[pmid15946323-9] Kaminski RM, Marini H, Kim WJ, Rogawski MA. Anticonvulsant activity of androsterone and etiocholanolone. Epilepsia. June 2005, 46 (6): 819–27. PMC 1181535 . PMID 15946323. doi:10.1111/j.1528-1167.2005.00705.x.

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