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Anabolic steroids. 合成代谢类固醇。
Pub Date : 2000-01-01 DOI: 10.4135/9781412964500.n26
D. Mottram, A. George
Anabolic steroids are synthetic derivatives of testosterone modified to enhance the anabolic rather than the androgenic actions of the hormone. The anabolic effects are considered to be those promoting protein synthesis, muscle growth and crythopoiesis. There are numerous side-effects to anabolic steroids, including hypertension and atherosclerosis, blood clotting, jaundice, hepatic carcinoma, tendon damage, psychiatric and behavioural effects and, in males, reduced fertility and gynaccomastia. Anabolic steroids were added to the International Olympic Committee's list of banned substances in 1975. The majority of 'evidence' concerning the efficacy of anabolic steroids as performance enhancing agents is anecdotal. In the main, experimental investigations have been poorly designed scientifically, clinically and statistically. The percentage of positive test results from IOC accredited laboratories has remained consistently low. However, athletes take their steroids during training and out-of-competition testing is not conducted in all countries, although international co-operation is now under consideration. Despite the lack of conclusive evidence, steroids users will continue to hold the view that their effects are efficacious and they are therefore unlikely to be persuaded to curtail their use.
合成代谢类固醇是睾酮的合成衍生物,经修饰后可增强激素的合成代谢而非雄激素作用。合成代谢作用被认为是促进蛋白质合成、肌肉生长和红细胞生成。合成代谢类固醇有许多副作用,包括高血压和动脉粥样硬化、凝血、黄疸、肝癌、肌腱损伤、精神和行为影响,对男性来说,还会降低生育能力和女性发育不良。1975年,合成代谢类固醇被列入国际奥委会的禁用物质名单。关于合成代谢类固醇作为成绩增强剂的功效的大多数“证据”都是轶事。总的来说,实验研究在科学、临床和统计上设计得很差。来自国际奥委会认可实验室的阳性检测结果百分比一直很低。然而,运动员在训练期间服用类固醇,并不是所有国家都进行赛外检测,尽管目前正在考虑进行国际合作。尽管缺乏确凿的证据,类固醇使用者将继续认为它们的效果是有效的,因此他们不太可能被说服减少使用。
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Bailliere's best practice & research. Clinical endocrinology & metabolism
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