Results 61 to 70 of about 846 (166)

Single step biotransformation of corn oil phytosterols to boldenone by a newly isolated Pseudomonas aeruginosa

Biotechnology Reports, 2016
A new potent Pseudomonas aeruginosa isolate capable for biotransformation of corn oil phytosterol (PS) to 4-androstene-3, 17-dione (AD), testosterone (T) and boldenone (BOL) was identified by phenotypic analysis and 16S rRNA gene sequencing.
Mohamed Eisa, Heba El-Refai, Magdy Amin
doaj   +1 more source

Pseudoendogenous presence of β-boldenone sulphate and glucuronide in untreated young bulls from the food chain

, 2015
The administration of boldenone (bold) to bovines, either for growth promotion or therapeutic purposes, has been banned in the EU since 1981. It is, however, a pseudoendogenous hormone, thus its detection in bovine urine, in the form of α-boldenone ...
L. Chiesa, E. Pasquale, R. Pavlovic, F. Arioli, B. Biolatti, S. Panseri, F. T. Cannizzo   +6 more
core   +1 more source

Bioformation of boldenone and related precursors/metabolites in equine feces and urine, with relevance to doping control [PDF]

, 2019
Boldenone (1‐dehydrotestosterone) is an exogenous anabolic‐androgenic steroid(AAS) but is also known to be endogenous in the entire male horse and potentiallyformed by microbes in voided urine, the gastrointestinal tract, or feed resulting inits ...
Christopher J. Walker, Muir, Tessa, James Scarth, Walker, Christopher J., Andrew T. Kicman, Kim Wolff, Pamela Hincks, Viljanto, Marjaana, Hincks, Pamela, Scarth, James, Biddle, Simon, Kicman, Andrew T., Wolff, Kim; id_orcid, Tessa Muir, Simon Biddle, Marjaana Viljanto   +15 more
core   +1 more source

Determination of 8 steroid hormones in meat and meat products by liquid chromatography-tandem mass spectrometry (LC-MS/MS)

Tạp chí Kiểm nghiệm và An toàn thực phẩm
Steroid hormones and endocrine compounds play an important role in regulating body physiology, however, they can pose potential risk to environmental and human health.
Nguyen Linh Trang, Nguyen Thi Phuong Mai, Le Thanh Huyen, Nguyen Quang Huy, Vu Anh Phuong, Do Thi Trang, Nguyen Thi Anh Huong, Tran Cao Son, Luu Thi Huyen Trang   +8 more
doaj   +1 more source

Evaluation of the changes of total flavonoids, soluble solids and sensory quality in the production process of tea bag from polyscias fruticosa leaves

Tạp chí Kiểm nghiệm và An toàn thực phẩm
Steroid hormones and endocrine compounds play an important role in regulating body physiology, however, they can pose potential risk to environmental and human health.
Pham Thi Vinh, Vu Thi Hanh
doaj   +1 more source

The world's first anabolic‐androgenic steroid testing trial: A two‐phase pilot combining chemical analysis, results dissemination and community feedback

Addiction, Volume 120, Issue 7, Page 1366-1377, July 2025.
Abstract Background and Aims The clandestine production and distribution of anabolic‐androgenic steroids (AAS) poses health risks due to the uncertainty of their contents. This study aimed to test the chemical content of AAS samples and provide aggregate results back to the community, exploring how these results influenced usage decisions and risk ...
Timothy Piatkowski, Ross Coomber, Cameron Francis, Emma Kill, Geoff Davey, Sarah Cresswell, Alan White, Madeline Harding, Karen Blakey, Steph Reeve, Brooke Walters, Cheneal Puljevic, Jason Ferris, Monica Barratt   +13 more
wiley   +1 more source

Steroid‐Induced Cardiomyopathy: Insights From a Systematic Literature Review and a Case Report

Clinical Case Reports, Volume 13, Issue 3, March 2025.
ABSTRACT Anabolic‐androgenic steroids (AAS) abuse is associated with severe cardiovascular risks, particularly AAS‐induced cardiomyopathy. This systematic review highlights that most cases show left ventricular dilation and reduced ejection fraction.
Zaydoun Alhusban, Mustafa Mohammad Alaaraj, Abdul Rahman Saimeh, Waleed Nassar, Ahmed Awad, Kamar Ghanima, Moustafa Abouelkheir, Ahmed Mohamed Hamed, Ahmed Afsa, Mostafa Ebraheem Morra   +9 more
wiley   +1 more source

Isolation and Identification of Black Oil‐Degrading Bacteria From Lubricant‐Contaminated Soil in Northern Baghdad, Iraq

The Scientific World Journal, Volume 2025, Issue 1, 2025.
Black oil is a refined petroleum product that poses a significant environmental risk. It contains complex multihydrocarbons that decompose slowly, so black oil remains in the environment for a long time, causing various toxic effects. This study isolates and identifies an indigenous bacterium from soil samples contaminated with waste lubricating oil ...
Zeena Ghazi Faisal, Mohannad Mohammed Jameel, Othman Abbas Abdullah, Maurizio Petruccioli   +3 more
wiley   +1 more source

What is the prevalence of anabolic‐androgenic steroid use among women? A systematic review

Addiction, Volume 119, Issue 12, Page 2088-2100, December 2024.
Abstract Background and aim Evidence suggests there has been an increase in anabolic‐androgenic steroid (AAS) use among women, driven by the evolving landscape of women's participation in sport. However, the extent of use is unknown. This systematic review aimed to estimate the prevalence of women's AAS use.
Timothy Piatkowski, Bianca Whiteside, Jonathan Robertson, April Henning, Eric H. Y. Lau, Matthew Dunn   +5 more
wiley   +1 more source

Fractionation of free and conjugated steroids for the detection of boldenone metabolites in calf urine with ultra-performance liquid chromatography/tandem mass spectrometry

, 2008
For over a decade there has been an intensive debate on the possible natural origin of boldenone (androst-1,4-diene-17 beta-ol-3-one, 17 beta-boldenone) in calf urine and several alternative markers to discriminate between endogenously formed boldenone ...
Van Poucke, Christof, Van Peteghem, Carlos, Van Vossel, Evy, Carlos Van Peteghem, Evy Van Vossel, Christof Van Poucke   +5 more
core   +1 more source