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"Further to our previous observation of post-mortem cardiac lesions after sudden death in several athletes with a history of anabolic steroid abuse, this study was intended to reproduce these lesions in rabbits administered testosterone oenanthate, a prototypic anabolic steroid abused by athletes, and to provide evidence for the protective effects of trimetazidine and dexrazoxane that are used as antianginal and cardioprotective drugs, respectively. Groups of six rabbits each were administered saline, testosterone, or a combination of testosterone and either trimetazidine or dexrazoxane for 3 months. Histologic cardiac lesions including necrosis, misshapen cell nuclei, interstitial and endocardial fibrosis, lymphocytic infiltrates, and vascular dystrophies were observed in testosterone-treated rabbits. In contrast, no significant lesions were observed in the animals treated with testosterone combined with either trimetazidine or dexrazoxane. This is the first study providing evidence for testosterone cardiotoxicity following sub-chronic exposure in laboratory animals. In addition, these results suggest the protective role of trimetazidine and dexrazoxane."
<https://link.springer.com/article/10.1007/s12012-009-9041-7?error=cookies_not_supported&code=4c3c9ab9-134a-41d5-977d-a7f1aa0472e2>