Am J Sports Med
Military Trauma Research Division, Letterman Army Institute of Research, Presidio of San Francisco, California, USA.
Published: December 1999
Although the use of anabolic agents in athletics has generated extensive publicity and controversy, the potential therapeutic benefits of these drugs have not been fully investigated. This randomized, blinded experimental study investigated whether short-term administration of an anabolic-androgenic steroid can limit immobilization-induced muscle atrophy in a rabbit model. We casted one hindlimb each in 48 New Zealand White rabbits and randomly assigned the rabbits to two groups. The treated group received weekly intramuscular injections of the anabolic-androgenic steroid, nandrolone decanoate (15 mg/kg). Immobilization significantly decreased muscle weights in both the treated rabbits and controls. Compared with controls, the body weights of the treated rabbits increased significantly at 2, 4, and 8 weeks. At 4 and 8 weeks, wet weights, dry weights, and contractile forces were significantly greater in both the casted and noncasted tibialis anterior muscle-tendon units of the treated group. Dry weights and casted contractile forces of the extensor digitorum longus muscle unit at 4 weeks and all measures at 8 weeks were greater in the treated rabbits than in controls. These results are contrary to previously accepted views that anabolic-androgenic steroid use leads to muscle hypertrophy only in conjunction with strength training. This study adds to the growing evidence that anabolic-androgenic steroids can produce significant skeletal muscle hypertrophy in sedentary populations.
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http://dx.doi.org/10.1177/03635465990270060601 | DOI Listing |
Front Biosci (Landmark Ed)
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Department of Cytobiology and Proteomics, Medical University of Lodz, 92-215 Lodz, Poland.
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iNOVA4HEALTH, NOVA Medical School, Faculdade de Ciências Médicas (NMS/FCM), Universidade Nova de Lisboa, 1159-056 Lisboa, Portugal; Department of Physiological Sciences, Federal University of Espírito Santo, Vitória, Espírito Santo, Brazil.
Millions of individuals make illicit use of anabolic-androgenic steroids (AAS), remaining a public health issue. It often leads to detrimental effects, including cardiovascular and renal diseases, besides hormonal and metabolic imbalances. The objective of this review is to emphasize the contribution of oxidative stress and inflammation to these effects and connect the findings of experimental animal studies with the alterations found in clinical contexts, in AAS users.
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January 2025
Catalonian Antidoping Laboratory, Doping Control Research Group, Hospital del Mar Research Institute, Barcelona, Spain.
The detection of endogenous anabolic androgenic steroids (EAAS) is performed with the Steroidal Module of the Athlete Biological Passport (ABP). Glucocorticoids (GC) could be a confounding factor to the ABP Steroidal Module because they inhibit the hypothalamic-pituitary-adrenal axis, and ABP metabolites have partial adrenal origin. In previous studies, single-dose systemic GC administrations have been shown to reduce the urinary ratios A/T and 5αdiol/E.
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January 2025
Shanghai Institute of Doping Analyses, Shanghai University of Sport, Shanghai, 200438, PR China; Center for Single-Cell Omics, School of Public Health, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, PR China. Electronic address:
The widespread accumulation of androgenic steroid endocrine disruptors in water and food has garnered increasing attention due to their significant risks to ecosystems and human health. These steroids, which cannot be completely eliminated, highlight the urgent need for advanced detection technologies. In this study, we present a novel emulsion-induced interface-anisotropic assembly strategy to synthesize bowl-like mesoporous polydopamine (PDA) particles, which exhibit high sensitivity in surface-enhanced Raman scattering (SERS) detection.
View Article and Find Full Text PDFSubst Abuse Treat Prev Policy
January 2025
Griffith Centre for Mental Health, Griffith University, Brisbane, QLD, Australia.
Background: Legitimate androgen use, such as testosterone replacement therapy, requires a legal prescription. Off-label use for reasons like wellness and aesthetics continues to grow. Recent regulatory changes in Australia aim to curb non-prescribed androgen use, potentially intensifying stigma, however seeking prescriptions through legal channels persists.
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