نتایج جستجو برای: nandrolone

تعداد نتایج: 508  

اکبرزاده, صمد, اکبری, زهرا, محبی, مهدی, پور خلیلی, خلیل, کسمتی, مهناز,

Background: Anabolic-Androgenic Steroids (AAS) are mainly abused by athletes for improvement of muscle performance. Data suggest that the effect of AAS on neurobiochemicals related to behavioral response, may be underlies psychological adverse effects. Physical activity has beneficial psychophysiological effects, which may be related to increased serum levels of endogenous opioid peptides durin...

2008
H. Mirkhani Seyed Fakhroddin Mesbah

Background: To improve the athletic ability and muscle mass, anabolic androgenic steroids are abused by athletes. Little is known about how these compounds affect the fine structures of the testis. This study aimed to identify the changes in the fine structure of testis following administration of nandro-

2013
Emmanuel Strahm Ulf Sjöberg Mats Garle Anders Rane Lena Ekström

Nandrolone (19-nortestosterone) is an anabolic androgenic steroid commonly abused for doping purposes. Nandrolone is mainly metabolized in the liver into 19-norandrosterone prior to glucuronidation and excretion through urine over an extended period of time. Several UGTs (i.e., UGT2B7, UGT2B15, and UGT2B17) are thought to be the major enzymes responsible for conjugation of androgens in human. A...

Journal: :Medicine and science in sports and exercise 2009
Phillip Watson Catherine Judkins Ed Houghton Caroline Russell Ronald J Maughan

INTRODUCTION Quantities of various anabolic/androgenic steroids have been found in dietary supplements without their presence being disclosed on the label. The aim of this study was to quantify the excretion patterns of the diagnostic metabolites, 19-norandrosterone (19-NA), and 19-noretiocholanolone (19-NE) after ingestion of small doses of 19-nor-4-androstene-3,17-dione (19-norandrostenedione...

2012
B. Adamu S. M. Ma'aji P. J. Erwin I. M. Tleyjeh

Androgens which are relatively cheap were used in the treatment of anaemia in dialysis patients before the advent of Erythropoietin (EPO). However, there are concerns about their efficacy and side effects. Aims. To examine the efficacy and harms of androgens for the treatment of anaemia of chronic kidney disease (CKD) compared to EPO. Settings and Design. A systematic review and meta-analysis u...

1994
Janne Valkonen Ilkka Karanta Matti Koskimies Keijo Heljanko Ilkka Niemelä Robin E. Bloomfield

Journal: :Steroids 2014
Elias Baydoun Martin Karam Atia-tul-Wahab Mahwish Shafi Ahmed Khan Malik Shoaib Ahmad Samreen Colin Smith Roula Abdel-Massih M Iqbal Choudhary

Therapeutic potential of nandrolone and its derivatives against leishmaniasis has been studied. A number of derivatives of nandrolone (1) were synthesized through biotransformation. Microbial transformation of nandrolone (1) with Cunninghamella echinulata and Cunninghamella blakesleeana yielded three new metabolites, 10β,12β,17β-trihydroxy-19-nor-4-androsten-3-one (2), 10β,16α,17β-trihydroxy-19...

Journal: :Physiology & behavior 2007
Marilyn Y McGinnis Augustus R Lumia Marc J Tetel Heather A Molenda-Figueira Bernard Possidente

In humans, anabolic androgenic steroid (AAS) use has been associated with hyperactivity and disruption of circadian rhythmicity. We used an animal model to determine the impact of AAS on the development and expression of circadian function. Beginning on day 68 gonadally intact male rats received testosterone, nandrolone, or stanozolol via constant release pellets for 60 days; gonadally intact c...

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