Results 61 to 70 of about 3,738 (173)

Management of Azoospermia: A Systematic Approach

The Obstetrician &Gynaecologist, Volume 28, Issue 3, Page 155-167, July 2026.
ABSTRACT Key Content Work‐up of azoospermic men includes a detailed history, physical examination and investigations to find the underlying cause. Causes and management of azoospermia (pre‐testicular, testicular and post‐testicular) with case presentations.
Naimah Raza, Alex Grammatis, Philippa Sangster, Jackson Kirkman‐Brown   +3 more
wiley   +1 more source

Attitude and Awareness of Male Bodybuilders Toward Adverse Effects of Anabolic-androgenic Steroids in Qazvin, Iran

مجله اپیدمیولوژی ایران, 2014
Background & Objectives: There have been several reports showing that the rate of anabolic-androgenic steroids abuse has increased in athlete and non-athlete adolescents.
H Arazi, A Salehi
doaj  

Dried blood spot analysis in antidoping: Technical challenges, analytical advances, and future perspectives

Bulletin of the Korean Chemical Society, Volume 47, Issue 6, Page 674-688, June 2026.
Dried blood spot (DBS) analysis enables minimally invasive blood collection with strong analyte stability and simplified logistics, supporting anti‐doping applications beyond traditional matrices. Recent advances address hematocrit, volume variability, and matrix effects while expanding coverage to steroid esters, World Anti‐Doping Agency‐listed ...
Jihyun Yoon, Jiyeong Hong, Hanbin Oh, Chi Hwan Lee, Ki Hun Kim   +4 more
wiley   +1 more source

Statistical Discrimination of Urinary Steroid Biomarkers in the Athlete Biological Passport: A Novel Approach to an Abnormal Steroid Profile Score (ASPS)

Drug Testing and Analysis, Volume 18, Issue 5, Page 608-618, May 2026.
The study developed a single Abnormal Steroid Profile Score (ASPS) to improve interpretation of the Athlete Biological Passport steroid module. Using Bayesian modelling and logistic regression, biomarker patterns from laboratory and doping control data successfully discriminated between doped and clean individuals, with improved classification ...
James G. Hopker, Jim E. Griffin, Matthew N. Fedoruk, Laura A. Lewis   +3 more
wiley   +1 more source

Studying the effect of anabolic androgenic steroids on the oral health of athletes

Journal of Craniomaxillofacial Research, 2017
Introduction: Anabolic androgenic steroids (AAS) are the synthetic derivatives of testosterone hormone; which are used by athletes; in order to increase muscle size, improve physical image and increase strength. They are usually being used out of medical
Arghavan Tonkaboni, Hamed Zare, Mohammad Javad Kharrazi Fard   +2 more
doaj  

Sex, steroids and anabolic androgens in athletics [PDF]

British Journal of Clinical Pharmacology, 2012
The ancient Olympic games were (almost) men only affairs. Successful athletes were highly honoured, and, perhaps for this reason, skulduggery was not unknown. For example, we read in Wikipedia that ‘Sotades at the ninety-ninth Festival was victorious in the long race and proclaimed a Cretan, as in fact he was.
openaire   +2 more sources

Evaluation of Different Detection and Identification Methods of Intact Tetrahydro‐Methyltestosterone Sulfate Metabolites in Doping Control

Drug Testing and Analysis, Volume 18, Issue 5, Page 678-689, May 2026.
The micro‐scale synthesis of the six out of eight possible tetrahydro‐methyltestosterone sulfate metabolites was performed, and the synthesized materials were used as analytical standards. The analysis of post‐administration sample extracts from methyltestosterone excretion studies against these standards provides further experimental proof for their ...
Yiannis S. Angelis, Olga Goula, Polyxeni Kiousi, Panagiotis Sakellariou   +3 more
wiley   +1 more source

Use of anabolic-androgenic steroids masking the diagnosis of pleural tuberculosis: a case report

Journal of Medical Case Reports, 2009
Introduction Tuberculous pleural effusions are not always easy to diagnose but the presence of a lymphocyte-rich exudate associated with an increased adenosine deaminase level and a positive skin test result are highly sensitive diagnostic signs.
de Larrea Carlos, Duplat Aglae, Rivera-Olivero Ismar, de Waard Jacobus H   +3 more
doaj   +1 more source

Anabolic-androgenic steroids and brain reward

Pharmacology Biochemistry and Behavior, 1996
Anabolic-androgenic steroid (AAS) effects on brain reward were investigated in male rats with electrodes implanted in the lateral hypothalamus using the rate-frequency curve shift paradigm of brain stimulation reward. In the first experiment, treatment for 2 weeks with the AAS methandrostenolone had no effect on either the reward or performance ...
A S, Clark, R C, Lindenfeld, C H, Gibbons   +2 more
openaire   +2 more sources

17β-Hydroxy-2-oxa-5α-androstan-3-one

Molbank
We have successfully synthesized a 2-oxa androstane derivative, 17β-hydroxy-2-oxa-5α-androstan-3-one (6), and confirmed its structure using NMR spectroscopy and mass spectrometry.
Savina Stoyanova, Georgi Dinkov, Milen G. Bogdanov   +2 more
doaj   +1 more source