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1.
Eur J Endocrinol ; 189(6): 601-610, 2023 Dec 06.
Artículo en Inglés | MEDLINE | ID: mdl-38102386

RESUMEN

OBJECTIVE: Symptomatic hypogonadism discourages men from stopping anabolic-androgenic steroids (AAS). Some men illicitly take drugs temporarily stimulating endogenous testosterone following AAS cessation (post-cycle therapy; PCT) to lessen hypogonadal symptoms. We investigated whether prior PCT use was associated with the normalization of reproductive hormones following AAS cessation. METHODS: Retrospective analysis of 641 men attending a clinic between 2015-2022 for a single, nonfasting, random blood test <36 months following AAS cessation, with or without PCT. Normalized reproductive hormones (ie, a combination of reference range serum luteinizing hormone, follicle-stimulating hormone, and total testosterone levels) were the surrogate marker of biochemical recovery. RESULTS: Normalization of reproductive hormones was achieved in 48.2% of men. PCT use was associated with faster biochemical recovery (13.0 (IQR8.0-19.0) weeks, PCT; 26.0 (IQR10.5-52) weeks, no-PCT; P < .001). Odds of biochemical recovery during multivariable analysis were: (1) higher with PCT (OR3.80) vs no-PCT (P = .001), in men stopping AAS ≤3 months previously; (2) reduced when 2 (OR0.55), 3 (OR0.46), or 4 (OR0.25) AAS were administered vs 1 drug (P = .009); (3) lower with AAS >6 vs ≤3 months previously (OR0.34, P = .01); (4) higher with last reported AAS >3 months (OR 5.68) vs ≤3 months (P = .001). PCT use was not associated with biochemical recovery in men stopping AAS >3 months previously. CONCLUSION: Without evidence-based withdrawal protocols, men commonly try avoiding post-AAS hypogonadism with PCT, which is illicit, ill-defined, and not recommended. Only half of men had complete biochemical testicular recovery after stopping AAS. The surprising association of self-reported PCT use with short-term biochemical recovery from AAS-induced hypogonadism warrants further investigation.


Asunto(s)
Anabolizantes , Hipogonadismo , Masculino , Humanos , Estudios Retrospectivos , Esteroides Anabólicos Androgénicos , Anabolizantes/efectos adversos , Congéneres de la Testosterona/efectos adversos , Testosterona , Hipogonadismo/inducido químicamente , Hipogonadismo/tratamiento farmacológico , Hipogonadismo/diagnóstico , Andrógenos/efectos adversos
2.
Reprod Fertil ; 4(1)2023 01 01.
Artículo en Inglés | MEDLINE | ID: mdl-36757334

RESUMEN

Lay summary: Anabolic steroids (also known as 'steroids') are banned drugs like testosterone, which make muscles bigger in men. These drugs are dangerous because they stop the testes from making natural testosterone and can cause heart attacks. Men stopping steroids have very low testosterone, which makes them feel weak, depressed, suicidal, infertile, and unable to have erections. We surveyed over 100 doctors to find out how they treat men giving up steroids. We report that doctors differ widely in the way they treat these men. Most doctors simply advise men to wait for the natural recovery of testosterone levels to happen. But 20% of doctors give men drugs to boost testosterone and make men feel better. Unfortunately, many patients had not recovered by the time of our survey. In summary, our survey highlights differences and limitations in the treatment of men giving up steroids. The use of steroids is increasing rapidly among young men, so we recommend further work to improve the treatment of men who are motivated to give up steroids.


Asunto(s)
Anabolizantes , Hipogonadismo , Animales , Humanos , Esteroides Anabólicos Androgénicos , Andrógenos/efectos adversos , Endocrinólogos , Anabolizantes/efectos adversos , Congéneres de la Testosterona/efectos adversos , Testosterona/efectos adversos , Hipogonadismo/inducido químicamente , Hipogonadismo/veterinaria , Esteroides/efectos adversos
3.
Front Endocrinol (Lausanne) ; 13: 951938, 2022.
Artículo en Inglés | MEDLINE | ID: mdl-36479214

RESUMEN

Feedback from oestradiol (E2) plays a critical role in the regulation of major events in the physiological menstrual cycle including the release of gonadotrophins to stimulate follicular growth, and the mid-cycle luteinising hormone (LH) surge that leads to ovulation. E2 predominantly exerts its action via oestrogen receptor-alpha (ERα), however, as gonadotrophin releasing hormone (GnRH) neurons lack ERα, E2-feedback is posited to be indirectly mediated via upstream neurons. Kisspeptin (KP) is a neuropeptide expressed in hypothalamic KP-neurons that control GnRH secretion and plays a key role in the central mechanism regulating the hypothalamic-pituitary-gonadal (HPG) axis. In the rodent arcuate (ARC) nucleus, KP is co-expressed with Neurokinin B and Dynorphin; and thus, these neurons are termed 'Kisspeptin-Neurokinin B-Dynorphin' (KNDy) neurons. ARC KP-neurons function as the 'GnRH pulse generator' to regulate GnRH pulsatility, as well as mediating negative feedback from E2. A second KP neuronal population is present in the rostral periventricular area of the third ventricle (RP3V), which includes anteroventral periventricular (AVPV) nucleus and preoptic area neurons. These RP3V KP-neurons mediate positive feedback to induce the mid-cycle luteinising hormone (LH) surge and subsequent ovulation. Here, we describe the role of KP-neurons in these two regions in mediating this differential feedback from oestrogens. We conclude by considering reproductive diseases for which exploitation of these mechanisms could yield future therapies.


Asunto(s)
Kisspeptinas , Neuroquinina B , Dinorfinas , Hormona Luteinizante , Hormona Liberadora de Gonadotropina , Neuronas
4.
Best Pract Res Clin Endocrinol Metab ; 36(5): 101691, 2022 09.
Artículo en Inglés | MEDLINE | ID: mdl-35999138

RESUMEN

Anabolic-androgenic steroid (AAS) have widespread and growing illicit use as image and performance enhancing drugs (IPED), predominantly in young men. Users trying to stop AAS are prone to distressing withdrawal symptoms which may trigger relapse in use. It is important to develop therapies to support AAS withdrawal. The illicit nature of AAS use has impeded the robust characterisation of its clinical withdrawal syndrome within any single study. Therefore, we conducted a systematic review summarising the available clinical studies describing symptoms associated with non-medically indicated AAS use, and AAS withdrawal. Reported clinical features of AAS withdrawal include headache, fatigue, myalgia, restlessness, insomnia, low mood and libido, anorexia, suicidal ideation, body image dissatisfaction, and steroid cravings; novel therapies for AAS withdrawal would need evaluation against these symptoms.


Asunto(s)
Anabolizantes , Sustancias para Mejorar el Rendimiento , Anabolizantes/efectos adversos , Andrógenos/efectos adversos , Humanos , Masculino , Esteroides , Congéneres de la Testosterona/efectos adversos
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