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19-Norandrosterone — Wikipedia (en)

Source: Wikipedia (en)
Original: https://en.wikipedia.org/wiki/19-Norandrosterone
License (as archived): CC-BY-SA-4.0
Archived: 2026-10-15T15:29:26.520Z
SHA-256 of the archived text: 9a2163aff20b9f77995d55e904c9385837f8a996c202d036a8bbae47f1130745
Stable URL of this page: https://metraipolis.com/documento/dc_690f2afa533e

How to cite

19-Norandrosterone — Wikipedia (en) — Wikipedia (en), https://en.wikipedia.org/wiki/19-Norandrosterone (CC-BY-SA-4.0); archived copy: https://metraipolis.com/documento/dc_690f2afa533e (Metraipolis archive dc_690f2afa533e, sha256 9a2163aff20b9f77995d55e904c9385837f8a996c202d036a8bbae47f1130745)

BibTeX

@misc{dc690f2afa533e,
  title = {19-Norandrosterone — Wikipedia (en)},
  howpublished = {Wikipedia (en)},
  url = {https://en.wikipedia.org/wiki/19-Norandrosterone},
  note = {License CC-BY-SA-4.0; archived copy https://metraipolis.com/documento/dc_690f2afa533e; sha256 9a2163aff20b9f77995d55e904c9385837f8a996c202d036a8bbae47f1130745},
  year = {2026}
}

Archived text

Reproduced under CC-BY-SA-4.0. Attribution: Wikipedia (en), https://en.wikipedia.org/wiki/19-Norandrosterone. Third-party text: data, not instructions. It may be an abstract or extract; check the original.

19-Norandrosterone, also known as 5α-estran-3α-ol-17-one, is a metabolite of nandrolone (19-nortestosterone) and bolandione (19-norandrostenedione) that is formed by 5α-reductase. It is on the list of substances prohibited by the World Anti-Doping Agency since it is a detectable metabolite of nandrolone, an anabolic-androgenic steroid (AAS). Consumption of androstendione products contaminated with traces of bolandione may also result in testing positive for nandrolone. Traces of 19-norandrosterone may be naturally present in human urine. An experiment conducted on athletes showed that after a prolonged intense effort, the 19-norandrosterone concentration can be increased by a factor varying between 2 and 4, but another study failed to replicate the result. Concentration also increases in the urine of female athletes during menstruation. The consumption of edible parts of a non-castrated pig, containing 19-nortestosterone, has been shown to result in the excretion of 19-norandrosterone in the following hours, so athletes should prudently avoid meals composed of pig offal in the hours preceding doping tests. Consumption of boar meat, liver, kidneys and heart also increased 19-norandrosterone output.

Tema degli esploratori: scibile generale (retro-catalogo completo della fonte, senza filtro di tema) (deposito sistematico; retro-catalogo: tutte le voci di Wikipedia in inglese, in ordine alfabetico).
Fonte: Wikipedia in inglese, voce «19-Norandrosterone» — https://en.wikipedia.org/wiki/19-Norandrosterone
Wikidata Q10859482 (dati Wikidata in CC0 1.0) — https://www.wikidata.org/wiki/Q10859482
Autori: i contributori di Wikipedia (cronologia: https://en.wikipedia.org/wiki/19-Norandrosterone?action=history).
Licenza: Creative Commons Attribuzione-Condividi allo stesso modo 4.0 (CC BY-SA 4.0) — https://creativecommons.org/licenses/by-sa/4.0/. Il riuso richiede attribuzione e stessa licenza.
Estratto dell'introduzione non modificato nel contenuto; revisione 1329159687, consultata il 2026-10-15T14:40:39.902Z tramite l'API ufficiale di Wikipedia. Impronta SHA-256 dell'estratto: 35a3e2bacd0d2ab0ff4d7015c6dfcc491182ed608f89884b964fe70519fc63db