Results 21 to 30 of about 7,295 (239)

Prevalence of AAS-Positive Samples at Drug Abuse Laboratory Sweden Between 2014 and 2023 and Sub-Study of Dual Use of AAS and Narcotics. [PDF]

Drug Test Anal
Throughout 2014–2023, over 20,000 AAS analyses have been conducted at the drug of abuse laboratory, Karolinska University Hospital. Approximately 20% and 2% of the samples have been positive for AAS, with no trends of increase or decrease. Around 50% of the AAS‐positive samples were also positive for narcotics (year 2022–2023), with gender differences;
Bohlin KP, Villén T, Hopcraft O, Pohanka A, Ekström L.   +4 more
europepmc   +2 more sources

Effects of nandrolone decanoate on telomere length and clinical outcome in patients with telomeropathies: a prospective trial

Haematologica, 2022
Androgens have been reported to elongate telomeres in retrospective and prospective trials with patients with telomeropathies, mainly with bone marrow failure. In our single-arm prospective clinical trial (clinicaltrials gov. Identifier: NCT02055456), 17
D. Clé, L. Catto, Fernanda Gutierrez-Rodrigues, F. Donaires, A. Pinto, B. Santana, Luiz Guilherme Darrigo Jr, E. Valera, M. Koenigkam-Santos, J. Baddini-Martinez, N. Young, E. Z. Martinez, R. Calado   +12 more
semanticscholar   +1 more source

Novel nandrolone aptamer for rapid colorimetric detection of anabolic steroids.

Analytical Biochemistry, 2022
The illicit use of anabolic androgenic steroids (AAS) as performance-enhancing drugs remains a global issue threatening not only the credibility of competitive sports but also public health due to the well-documented adverse effects they elicit.
Xhensila Shkembi, M. L. Botero, V. Skouridou, Miriam Jauset-Rubio, M. Svobodová, P. Ballester, A. Bashammakh, M. El-Shahawi, A. Alyoubi, C. O’Sullivan   +9 more
semanticscholar   +1 more source

Electrochemical Determination of Nandrolone as a Doping Agent in Sport by Molecularly Imprinted Polymers and Au Nanoparticles Hybrid Nanostructured Electrode in Biological Fluids

International Journal of Electrochemical Science, 2022
The goal of this study was to develop a stable and broad-range electrochemical sensor for detecting nandrolone (19-nortestosterone (19-NT)) as a doping agent in clinical samples by combining molecularly imprinted polymers and Au nanoparticles hybrid film
Xiang Zhao
semanticscholar   +1 more source

Nandrolone decanoate appears to increase bone callus formation in young adult rats after a complete femoral fracture [PDF]

Acta Cirúrgica Brasileira, 2017
Purpose: To evaluate the influence of nandrolone decanoate on fracture healing and bone quality in normal rats. Methods: Male rats were assigned to four groups (n=28/group): Control group consisting of animals without any intervention, Nandrolone ...
Ana Paula Franttini Garcia Moreno Guimarães, Mariana Maloste Butezloff, Ariane Zamarioli, João Paulo Mardegan Issa, José Batista Volpon   +4 more
doaj   +1 more source

Heart Reaction to Nandrolone Decanoate plus Two Different Intensities of Endurance Exercise: Electrocardiography and Stereological Approach [PDF]

Addiction and Health, 2018
Background: Regarding the negative effects of androgenic anabolic steroids (AASs) abuse, the long-term effect of nandrolone decanoate with/without two intensities of endurance exercise training was investigated on heart tissue and electrocardiogram (ECG)
Siyavash Joukar, Vida Naderi-Boldaji, Mahdieh Yoosefnia, Hamidreza Nasri, Forouzan Rafie   +4 more
doaj   +1 more source

Nandrolone decanoate and testosterone undecanoate differently affect stress hormones, neurotransmitter systems, and general activity in the male rat.

Behavioural Brain Research, 2022
Anabolic androgenic steroids (AAS) are frequently used to improve physical appearance and strength. AAS are known to affect muscle growth, but many AAS-users also experience psychiatric and behavioral changes after long-term use.
S. Zelleroth, E. Nylander, Ellinor Kjellgren, GronbladhAlfhild Grönbladh, M. Hallberg   +4 more
semanticscholar   +1 more source

Crystal Structure and Intermolecular Energy for Some Nandrolone Esters

Molecules, 2023
Nandrolone (Estr-4-en-17β-ol-3-one) is a derivative of testosterone and a naturally occurring anabolic–androgenic agent which belongs to the steroid group.
Liviu Mare, Marieta Muresan-Pop, Pompilia Mioara Purcea Lopes, Alexandru Turza, Gheorghe Borodi, Violeta Popescu   +5 more
doaj   +1 more source

A comparative study to investigate the effect of Testosterone enanthate and Nandrolone‌decanoate administration on testicular tissue and spermatogenesis coefficients in rats [PDF]

Āsīb/shināsī-i Darmāngāhī-i Dāmpizishkī, 2023
Sexually differentiating traits in males, the emergence of primary and secondary sexual traits and numerous systemic effects are controlled by the hormone testosterone, therefore testosterone and its various esters, including enanthate, are produced and ...
Sajjad Purali, Afshin Davasaz, Esmaiel Safavi   +2 more
doaj   +1 more source

Lipid peroxidation in rats treated with vincristine sulphate and nandrolone decanoate

Arquivo Brasileiro de Medicina Veterinária e Zootecnia, 2011
Brain and serum lipid peroxidation was studied in rats treated with vincristine sulphate and different doses of nandrolone decanoate. Thirty rats were distributed into six groups (n=5). The treatments were applied once a week for two weeks.
D.B Martins, S.T.A Lopes, C.M Mazzanti, R Spanevello, R Schmatz, M Corrêa, N Stefanello, M.R Schetinger, V Morsch, A.P.M Veiga   +9 more
doaj   +1 more source