Results 121 to 130 of about 169,506 (312)
Improving the Determination of Carbon Isotope Ratios of Endogenous Steroids Found in Human Serum
Drug Testing and Analysis, EarlyView.A method employing high‐performance liquid chromatographic sample cleanup to determine the carbon isotope ratios of steroids found in human serum was developed and fully validated. A reference population encompassing more than 120 male and female athlete samples was investigated in order to establish population‐based thresholds for Δ‐values.
Thomas Piper, Mario Thevis
wiley +1 more source
Testosterone Therapy for the Pruritus of Obstructive Jaundice [PDF]
, 1952 H. G. Lloyd-Thomas, S. Sherlock
openalex +1 more source
Skeletal Muscle Memory: An Update From the Antidoping Perspective
Drug Testing and Analysis, EarlyView.ABSTRACT This narrative review explores the concept of muscle memory, focusing on the physiological and biochemical mechanisms underlying information retention in skeletal muscle tissue as it relates to antidoping. The discussion encompasses the role of satellite cells (SCs) in myonuclei recruitment, resulting in increased myonuclear density and ...
Claire Traversa
wiley +1 more source
THE URINARY EXCRETION OF ESTROGENS, ANDROGENS AND FSH FOLLOWING THE ADMINISTRATION OF TESTOSTERONE TO HUMAN FEMALE CASTRATES [PDF]
, 1939 Ira T. Nathanson +2 more
openalex +1 more source
Drug Testing and Analysis, EarlyView.β‐hydroxy β‐methyl butyric acid (HMB), either as the free acid or in the form of its calcium salt, is a component of several dietary supplements marketed to enhance sports performance. We investigated the urinary excretion profile of HMB, also assessing the endogenous reference ranges of HMB in human urine samples from healthy volunteers (n = 20). Data
Cristian Camuto +3 more
wiley +1 more source
Testosterone and Depression [PDF]
Psikiyatride Güncel Yaklaşımlar, 2010 Androgens have various effects on human body and mood. Testosterone, a hormone mainly secreted from testes and adrenals, is one of the most potent androgens. Multiple studies have found that testosterone plays a role in regulating sexual activity, libido,
Şükrü Kartalcı
doaj
Drug Testing and Analysis, EarlyView.An LC–MS/MS method was developed and validated to detect 12 synthetic or endogenous hormonal growth promotants commonly utilized in the livestock industry in the United States at low pg/mg concentrations. ABSTRACT Hormonal growth promotants (HGPs) are a class of pharmaceutical agents commonly administered to cattle in the United States to improve ...
Mary Mosburg +7 more
wiley +1 more source
Drug Testing and Analysis, EarlyView.Scenarios of drug exposure and administration as well as detection assays for drugs and methods of sports doping published between 2023 and 2024 are critically reviewed and evaluated in context with the Prohibited List 2024 as established by the World Anti‐Doping Agency.
Mario Thevis +2 more
wiley +1 more source
International Brazilian Journal of UrologyIntroduction: Data from animal, clinical and prevention studies support the role of androgens in prostate cancer growth, proliferation and progression. Results of serum based epidemiologic studies in humans, however, have been inconclusive.
Alexandros Fiamegos +6 more
doaj +1 more source
Drug Testing and Analysis, EarlyView.Triptorelin (5–10) confirmation using LC/MS‐IT‐TOF and LC‐Orbitrap can be used as evidence of triptorelin abuse in doping control. ABSTRACT Triptorelin, a synthetic gonadotrophin‐releasing hormone (GnRH), is mainly used in the clinical treatment of prostate cancer.
Navaporn Saardpun +6 more
wiley +1 more source