|Preferred IUPAC name
3D model (JSmol)
CompTox Dashboard (EPA)
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
|what is ?)(|
11-Ketotestosterone (11-KT) is an oxidized form of testosterone that contains a keto group at the C11 position. It is related to adrenosterone, an androgen found in trace quantities in humans. In fish, 11-ketotestosterone functions as the endogenous androgenic sex hormone. In midshipman fish, 11-ketotestosterone is not present in females or Type II Males — Type II Males reach sexual maturation later, are less territorial, and have higher testosterone than Type I Males.
In mammals, 11-ketotestosterone has similar potency to testosterone as an androgen, and has been identified as an important adrenal androgen. However, unlike Testosterone, it is very weakly anabolic and mostly prevents muscle breakdown as opposed to promoting muscle growth. It is synthesized from 11β-hydroxyandrostenedione and, to a lesser extent, 11-ketoandrostenedione (adrenosterone). 11-Ketoandrostenedione has notably been sold online as an androgen prohormone, usually under the name 11-oxoandrostenedione (11-OXO).
- Nelson, Randy F. (2005). An introduction to behavioral endocrinology. Sunderland, Mass: Sinauer Associates. p. 143. ISBN 0-87893-617-3.
- Nagahama Y, Miura T, Kobayashi T (1994). "The onset of spermatogenesis in fish". Ciba Found. Symp. Novartis Foundation Symposia. 182: 255–67, discussion 267–70. doi:10.1002/9780470514573.ch14. ISBN 9780470514573. PMID 7835154.
- Pretorius, Elzette; Arlt, Wiebke; Storbeck, Karl-Heinz (2016). "A new dawn for androgens: Novel lessons from 11-oxygenated C19 steroids" (PDF). Molecular and Cellular Endocrinology. 441: 76–85. doi:10.1016/j.mce.2016.08.014. ISSN 0303-7207. PMID 27519632. S2CID 4079662.