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Old 06-29-2019, 10:06 AM   #1
liftsiron
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Improvements in body composition, cardiometabolic risk factors and insulin sensitivit

US National Library of Medicine National Institutes of Health


Format: Abstract


Steroids. 2015 Feb;94:60-9. doi: 10.1016/j.steroids.2014.12.017. Epub 2014 Dec 30.
Improvements in body composition, cardiometabolic risk factors and insulin sensitivity with trenbolone in normogonadic rats.
Donner DG1, Beck BR2, Bulmer AC3, Lam AK4, Du Toit EF3.
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Abstract

Trenbolone (TREN) is used for anabolic growth-promotion in over 20 million cattle annually and continues to be misused for aesthetic purposes in humans. The current study investigated TREN's effects on body composition and cardiometabolic risk factors; and its tissue-selective effects on the cardiovascular system, liver and prostate. Male rats (n=12) were implanted with osmotic infusion pumps delivering either cyclodextrin vehicle (CTRL) or 2mg/kg/day TREN for 6 weeks. Dual-energy X-ray Absorptiometry assessment of body composition; organ wet weights and serum lipid profiles; and insulin sensitivity were assessed. Cardiac ultrasound examinations were performed before in vivo studies assessed myocardial susceptibility to ischemia-reperfusion (I/R) injury. Circulating sex hormones and liver enzyme activities; and prostate and liver histology were examined. In 6 weeks, fat mass increased by 347% in CTRLs (p<0.01). Fat mass decreased by 376% and lean mass increased by 114% with TREN (p<0.05). Serum triglycerides, HDL and LDL were reduced by 62%, 57% and 78% (p<0.05) respectively in TREN rats. Histological examination of the prostates from TREN-treated rats indicated benign hyperplasia associated with an increased prostate mass (149% compared to CTRLs, p<0.01). No evidence of adverse cardiac or hepatic effects was observed. In conclusion, improvements in body composition, lipid profile and insulin sensitivity (key risk factors for cardiometabolic disease) were achieved with six-week TREN treatment without evidence of adverse cardiovascular or hepatic effects that are commonly associated with traditional anabolic steroid misuse. Sex hormone suppression and benign prostate hyperplasia were confirmed as adverse effects of the treatment.

Copyright 2014 Elsevier Ltd. All rights reserved.
KEYWORDS:

Androgenic anabolic steroid; Cardiac; Fat loss; Insulin sensitivity; Selective androgen receptor modulator; Trenbolone

PMID:
25554582
DOI:
10.1016/j.steroids.2014.12.017

[Indexed for MEDLINE]
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