Results 181 to 190 of about 1,037,506 (413)

Effects of the Dietary Supplement 5α‐Hydroxy‐Laxogenin in the Orchiectomized Rat Model

open access: yesDrug Testing and Analysis, EarlyView.
The dietary supplement ingredient 5α‐hydroxy‐laxogenin was investigated in the castrated male rat for potential androgenic and anabolic effects. Moreover, androgen receptor binding of 5α‐hydroxy‐laxogenin was modelled by in silico docking. While molecular modelling supports androgen receptor binding, we observed neither androgenic nor anabolic effects ...
Daniel Derwand   +4 more
wiley   +1 more source

Sports Supplement Analysis Survey for the Prevalence of WADA Prohibited Substances in the Australian Online Marketplace

open access: yesDrug Testing and Analysis, EarlyView.
A survey of 200 sports supplements purchased online in Australia and analysed for WADA Prohibited Substances. Athlete education regarding the use of sports supplements remains a high priority as 35% of the products contained WADA Prohibited Substances. ABSTRACT Sports supplements are used extensively by people involved in competitive sports. However, a
Louise Barker   +4 more
wiley   +1 more source

Observations on Olympic athletes

open access: gold, 1929
C. H. Best, Ruth C. Partridge
openalex   +1 more source

Aerobic performance capacity in athletes [PDF]

open access: green, 1978
Heikki Rusko, Matti Havu, Esko Karvinen
openalex   +1 more source

Gel Electrophoretic Detection of Black Market ACE‐031

open access: yesDrug Testing and Analysis, EarlyView.
This article presents a study on black market ACE‐031 products and their detection by gel‐electrophoresis and Western blotting. Of the 14 tested products, only 12 contained an ACVR2B‐immunoreactive protein. However, mass spectrometry revealed that the products did not contain the ACVR2B‐Fc fusion protein ACE‐031 but instead the full‐length human ...
Christian Reichel   +3 more
wiley   +1 more source

Metabolic Identification Based on Proposed Mass Fragmentation Pathways of the Anabolic Steroid Bolasterone by Gas Chromatography Tandem Mass Spectrometry

open access: yesDrug Testing and Analysis, EarlyView.
The metabolism of bolasterone in liver microsomes and in urine samples of rats orally treated was evaluated due to no availability of its extensive metabolism studies. Its mono‐ and di‐hydroxylated metabolites were detected by GC‐EI‐MS/MS, and the fragmentation pathways of metabolites were suggested.
Anca Raluca Muresan   +5 more
wiley   +1 more source

Avoid Falsely Accusing Female Athletes Who Use Levonorgestrel of Doping

open access: yesDrug Testing and Analysis, EarlyView.
Levonorgestrel, a hormonal contraceptive, metabolises to 18‐methyl‐19‐noretiocholanolone which is also the main metabolite of the prohibited substance 18‐methyl‐19‐nortestosterone. Analysing for levonorgestrel and/or tetrahydronorgestrel is essential to avoid misinterpreting 18‐methyl‐19‐noretiocholanolone findings.
Alexander Andersson   +3 more
wiley   +1 more source

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