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1.
Int J Sports Med ; 42(7): 645-650, 2021 Jun.
Article in English | MEDLINE | ID: mdl-33506442

ABSTRACT

Doping-untested strength-sport athletes (powerlifters, strongmen, armlifters, etc.,) are infamous for their doping use, but their exact doping regimens are not known. The purpose of this study was to provide a reasonable portrait of doping history in this specific athlete group for medical practitioners. Seventy-five athletes were selected by netnography of the social media community around the Finnish doping-untested strength-sport federations on the basis of their activity in doping-related discussions, and the athletes were invited to answer a detailed doping-related anonymous survey. Fifty respondents completed the survey. 100% of the respondents reported use of anabolic androgenic steroids, 66% reported use of stimulants, and 80% use of non-steroidal anabolic substances. The doses of both testosterone products and human growth hormone were notably larger than reported in previous studies of gym users (mostly non-competitive athletes). The subjects reported simultaneous use of an average 5.66 illegal substances, and lifetime use of 16.78 illegal substances. The doses of illicit drugs, as well as polypharmacy, among competitive doping-untested strength-sport athletes are higher than previously reported among recreational gym users, and side effects are likely in this specific population.


Subject(s)
Doping in Sports/trends , Resistance Training/statistics & numerical data , Anabolic Agents , Female , Human Growth Hormone , Humans , Male , Surveys and Questionnaires
2.
Eur J Sport Sci ; 20(8): 1093-1101, 2020 Sep.
Article in English | MEDLINE | ID: mdl-31787029

ABSTRACT

Being an elite athlete is an extremely coveted position, which can lead an individual to use doping. As knowledge is extended, doping techniques have become increasingly sophisticated, and the newest method of doping is gene doping. This article aims to present an updated bibliographic survey that addresses gene doping between 1983 and 2018. Anti-doping agencies have not yet approved any detection technique for this type of doping. The possibility of eradicating such doping is almost zero mainly because gene therapy advances rapidly. In this scenario, the future of gene doping must be discussed and decided before irreversible limits are exceeded.


Subject(s)
Doping in Sports/methods , Doping in Sports/trends , Gene Editing , Genetic Therapy , Competitive Behavior , Doping in Sports/history , Doping in Sports/legislation & jurisprudence , Erythropoietin/genetics , Forecasting , History, 19th Century , History, 20th Century , History, 21st Century , History, Ancient , Humans , Substance Abuse Detection , Vascular Endothelial Growth Factor A/genetics
3.
Ann Ig ; 31(6): 548-555, 2019.
Article in English | MEDLINE | ID: mdl-31616899

ABSTRACT

Consumption of supplements and the use/abuse of drugs to support athletic performance is increasingly growing. The aim of this paper is to approach the phenomenon by providing a tool to develop critical awareness of these problems. By reviewing scientific articles, we collected information on the use of licit and illicit substances among professional and non-professional athletes, showing a widespread scenario also based on false myths. The use of supplements, drugs and doping substances represents a complex and still debated issue, that deserves greater consideration among both sportsmen and health operators. A more critical and informed approach to these topics can support empowerment and a conscious use of drugs by respecting eating habits, own health and healthy lifestyles.


Subject(s)
Dietary Supplements , Doping in Sports/trends , Illicit Drugs , Athletes/statistics & numerical data , Humans , Sports/statistics & numerical data , Substance-Related Disorders/epidemiology
4.
Drug Test Anal ; 11(1): 8-26, 2019 Jan.
Article in English | MEDLINE | ID: mdl-30488582

ABSTRACT

A number of high profile revelations concerning anti-doping rule violations over the past 12 months have outlined the importance of tackling prevailing challenges and reducing the limitations of the current anti-doping system. At this time, the necessity to enhance, expand, and improve analytical test methods in response to the substances outlined in the World Anti-Doping Agency (WADA) Prohibited List represents an increasingly crucial task for modern sports drug testing programs. The ability to improve analytical testing methods often relies on the expedient application of novel information regarding superior target analytes for sports drug testing assays, drug elimination profiles, and alternative sample matrices, together with recent advances in instrumental developments. This annual banned-substance review evaluates literature published between October 2017 and September 2018 offering an in-depth evaluation of developments in these arenas and their potential application to substances reported in WADA's 2018 Prohibited List.


Subject(s)
Doping in Sports/prevention & control , Performance-Enhancing Substances/analysis , Substance Abuse Detection/methods , Anabolic Agents/adverse effects , Anabolic Agents/analysis , Anti-Anxiety Agents/adverse effects , Anti-Anxiety Agents/analysis , Doping in Sports/trends , Erythropoietin/adverse effects , Erythropoietin/analysis , Humans , Performance-Enhancing Substances/adverse effects , Sports/standards , Sports/trends , Substance Abuse Detection/trends
5.
Curr Pharm Teach Learn ; 10(8): 1124-1131, 2018 08.
Article in English | MEDLINE | ID: mdl-30314549

ABSTRACT

BACKGROUND AND PURPOSE: The use and misuse of drugs in sport is becoming increasingly important globally, and the role of pharmacists is evolving in this regard. This paper describes the design and implementation of an elective course "Drugs in Sport" in an undergraduate pharmacy curriculum. EDUCATIONAL ACTIVITY AND SETTING: The elective course was designed to introduce BSc pharmacy students to an evidence-based approach to safe, effective, and legal use of drugs in sport. The course covered why athletes take drugs, evolution of doping in sport, the international regulations regarding doping and anti-doping in sport including the World Anti-doping Agency Prohibited List, as well as testing and monitoring for drug use in sport. It also included the role of athlete support personnel (ASP) in preventing the use of prohibited substances by athletes. A web-based survey was conducted at the end of the course to assess the students' perspectives of the course. FINDINGS: Students provided an evaluation of the course in terms of its content, methods of delivery, and assessment. Overall, the students demonstrated competence. They gained insight into international and national regulations regarding doping and anti-doping in sport and the potential role of pharmacists as ASP in providing support and advice for athletes and the public. SUMMARY: Designing and implementing an evidence-based course on the use of drugs in sport customized for pharmacy students was achieved successfully. Such courses could provide an opportunity to advance the scope of pharmacy practice and possibly provide a new career path for future pharmacists.


Subject(s)
Curriculum/trends , Doping in Sports/methods , Education, Pharmacy/standards , Substance-Related Disorders/drug therapy , Doping in Sports/trends , Education, Pharmacy/methods , Education, Pharmacy/statistics & numerical data , Humans , Qatar , Sports/education , Sports/trends , Substance-Related Disorders/psychology , Surveys and Questionnaires , Teaching/psychology , Teaching/standards
6.
Yakugaku Zasshi ; 137(7): 883-891, 2017.
Article in Japanese | MEDLINE | ID: mdl-28674304

ABSTRACT

In 2009, the Japan Anti-Doping Agency (JADA) established the "Sports Pharmacist Accreditation Program" to prevent doping in sports. Since then, anti-doping activities in Japan have been attracting attention. In this study, we investigated research about the current status of doping from 2007 to 2014 in Japan to make anti-doping activities more concrete, and we also discussed future anti-doping activities by pharmacists. In Japan, bodybuilding was the sporting event with the highest number and rate of doping from 2007 to 2014. Many of the positive doping cases were detected for class S1 (anabolic agents), S5 (diuretics and masking agents), and S6 (stimulants). Within class S1, supplements were the main cause of positive doping. Within class S5, medicines prescribed by medical doctors were the main cause of positive doping. Within class S6, non-prescription medicines (e.g., OTC) were the main cause of positive doping. When we looked at the global statistics on doping, many of the positive doping cases were detected for class S1. On comparing the Japanese statistics with the global statistics, the rate of positive doping caused by class S1 was significantly lower, but that caused by classes S5 and S6 was significantly higher in Japan than in the world. In conclusion, pharmacists in Japan should pay attention to class S1, S5, and S6 prohibited substances and to the sport events of bodybuilding. Based on this study, sports pharmacists as well as common pharmacists should suggest new anti-doping activities to prevent doping in the future.


Subject(s)
Doping in Sports/prevention & control , Doping in Sports/statistics & numerical data , Pharmacists , Professional Role , Anabolic Agents/adverse effects , Central Nervous System Stimulants/adverse effects , Diuretics/adverse effects , Doping in Sports/trends , Glucocorticoids/adverse effects , Humans , Japan/epidemiology , Substance Abuse Detection , Time Factors
7.
Med Sport Sci ; 62: 91-106, 2017.
Article in English | MEDLINE | ID: mdl-28578328

ABSTRACT

The advent of gene transfer technologies in clinical studies aroused concerns that these technologies will be misused for performance-enhancing purposes in sports. However, during the last 2 decades, the field of gene therapy has taken a long and winding road with just a few gene therapeutic drugs demonstrating clinical benefits in humans. The current state of gene therapy is that viral vector-mediated gene transfer shows the now long-awaited initial success for safe, and in some cases efficient, gene transfer in clinical trials. Additionally, the use of small interfering RNA promises an efficient therapy through gene silencing, even though a number of safety concerns remain. More recently, the development of the molecular biological CRISPR/Cas9 system opened new possibilities for efficient and highly targeted genome editing. This chapter aims to define and consequently demystify the term "gene doping" and discuss the current reality concerning gene- and cell-based physical enhancement strategies. The technological progress in the field of gene therapy will be illustrated, and the recent clinical progress as well as technological difficulties will be highlighted. Comparing the attractiveness of these technologies with conventional doping practices reveals that current gene therapy technologies remain unattractive for doping purposes and unlikely to outperform conventional doping. However, future technological advances may raise the attractiveness of gene doping, thus making it easier to develop detection strategies. Currently available detection strategies are introduced in this chapter showing that many forms of genetic manipulation can already be detected in principle.


Subject(s)
Doping in Sports/trends , Gene Transfer Techniques/trends , Genetic Therapy/trends , Sports , CRISPR-Cas Systems , Doping in Sports/prevention & control , Gene Editing , Genetic Vectors , Humans , RNA, Small Interfering , Stem Cell Transplantation
9.
J Endocrinol Invest ; 40(9): 911-923, 2017 Sep.
Article in English | MEDLINE | ID: mdl-28332171

ABSTRACT

The relationships between sport and sexuality in males are of great social and clinical interest, because of sports and motor activities that highly promote social and sexual relationships. Even if few literature exist, two main questions should be taken into account: whether and how physical exercise and sport positively or negatively influence sexual health and behavior and/or whether and how sexual behavior may affect a sub-sequent sport performance. Physical exercise and sport per se can influence, positively or negatively, the hypothalamic-pituitary-testicular axis function and, consequently, the individual's reproductive and/or sexual health. This depends on individual factors such as genetic and epigenetic ones and on different variables involved in the practice of sport activities (type of sport, intensity and duration of training, doping and drug use and abuse, nutrition, supplements, psychological stress, allostatic load, etc.). If well conducted, motor and sport activities could have beneficial effects on sexual health in males. Among different lifestyle changes, influencing sexual health, regular physical activity is fundamental to antagonize the onset of erectile dysfunction (ED). However, competitive sport can lead both reproductive and/or sexual tract damages and dysfunctions, transient (genital pain, hypoesthesia of the genitalia, hypogonadism, DE, altered sexual drive, etc.) or permanent (hypogonadism, DE, etc.), by acting directly (traumas of the external genitalia, saddle-related disorders in cyclists, etc.) or indirectly (exercise-related hypogonadism, drug abuse, doping, stress, etc.). Sexual activities shortly performed before a sport competition could differently influence sport performance. Due to the few existing data, it is advisable to avoid an absolute pre-competition sexual abstinence.


Subject(s)
Exercise/physiology , Sexual Health , Sexuality/physiology , Sports/physiology , Testosterone/blood , Doping in Sports/prevention & control , Doping in Sports/trends , Exercise/psychology , Humans , Life Style , Male , Sexual Health/trends , Sexuality/drug effects , Sexuality/psychology , Sports/psychology , Sports/trends
11.
Rev. andal. med. deporte ; 9(3): 131-137, sept. 2016. tab, graf
Article in Spanish | IBECS | ID: ibc-154180

ABSTRACT

El dopaje en el deporte tiene su origen en la Grecia Clásica. Sin embargo, a lo largo del siglo pasado y hasta la actualidad, la utilización de este tipo de prácticas fraudulentas en el deporte ha ido en aumento. Entre las sustancias dopantes más utilizadas destacan la testosterona y sus derivados sintéticos, los anabolizantes sintéticos. A pesar de que estas sustancias prohibidas se han utilizado para la mejora del rendimiento en pruebas de fuerza y potencia, frecuentemente se detectan positivos en deportistas de resistencia. Los objetivos del presente estudio han sido informar acerca de los efectos ergogénicos de la suplementación con testosterona y anabolizantes sintéticos sobre el rendimiento en resistencia, a través de cambios sobre parámetros sanguíneos, así como los efectos secundarios que tienen sobre la salud. Para ello, se ha realizado una revisión en bases de datos como Elsevier, Medline, Pubmed y Web of Science incluyendo términos como testosterone, anemia, doping, endurance, erythropoietin, hepcidin e iron. La hepcidina se ha propuesto la principal reguladora de las reservas corporales de hierro y la suplementación con testosterona puede afectar a la síntesis de dicha hormona. Los efectos de la testosterona sobre la hepcidina podrían hacer mejorar tanto la capacidad de transporte como de difusión de oxígeno. De este modo, el dopaje con testosterona podría tener un potencial efecto ergogénico en modalidades de resistencia. Sin embargo, dichas mejoras pueden tener efectos negativos sobre el estado de salud del deportista, entre los que se encuentran trastornos metabólicos, orgánicos, psicológicos e inmunosupresión (AU)


Doping in sport has its origins in Ancient Greece. However, over the last century to the present, the use of such dishonest practices has increased. Among the most widely used performance enhancing drugs is the use of testosterone and its synthetics anabolics. Although these prohibited substances have been used to increase performance in test of strength and power, due to the ability to cause hypertrophy, very frequent it's detecting positive test doping by in endurance athletes by testosterone or synthetics anabolics. The aim of this study was to report the ergogenic effects of testosterone supplementation and synthetics anabolics on endurance performance, through changes on blood parameters. To this end, it has conducted a review in different databases such as Elsevier, Medline, Pubmed and Web of Science where terms such as testosterone, anemia, doping, endurance, erythropoietin, hepcidin and iron were included. Hepcidin has been proposed main regulator of body iron stores and testosterone supplementation may affect the synthesis of the hormone. The effects of testosterone on hepcidin could improve both transport capacity and oxygen diffusion. Thus, doping with testosterone could have a potential effect on ergogenic resistance patterns. However, such improvements can have negative effects on the health of the athlete like metabolic, organic, psychological disorders and immunosuppression (AU)


O doping no esporte tem suas origens na Grécia Antiga. No entanto, do último século para o presente, a utilização de tais práticas desonestas aumentou. Entre as drogas que melhoram o desempenho mais amplamente utilizadas são o uso de testosterona e seus anabolizantes sintéticos. Embora estas substâncias proibidas têm sido usados para aumentar o desempenho em testes de força e potência, devido à capacidade de causar hipertrofia, é muito frequentes detecção de doping por testosterona ou anabolizantes sintéticos no teste de atletas de endurance. O objetivo deste estudo foi relatar os efeitos ergogênicos da suplementação de testosterona e anabolizantes sintéticos sobre o desempenho de resistência, através de mudanças nos parâmetros sanguíneos. Para este efeito, procedeu a uma revisão em diferentes bancos de dados, tais como Elsevier, Medline, Pubmed e Web of Science, onde termos como a testosterona, anemia, doping, resistência, eritropoietina, hepcidina e ferro foram incluídos. Hepcidina foi proposto como principal regulador das reservas de ferro do corpo e a suplementação de testosterona pode afetar a síntese do hormonio. Os efeitos da testosterona sobre hepcidina poderia melhorar tanto a capacidade de transporte e difusão de oxigênio. Assim, a dopagem com testosterona pode ter um efeito potencial sobre padrões de resistência ergogênicos. No entanto, essas melhorias podem ter efeitos negativos sobre a saúde do atleta como metabolismo, distúrbios psicológicos orgânicos e imunossupressão (AU)


Subject(s)
Humans , Male , Female , Resistance Training/methods , Testosterone/therapeutic use , Anabolic Agents/therapeutic use , Doping in Sports/methods , Doping in Sports/trends , Performance-Enhancing Substances/analysis , Performance-Enhancing Substances/therapeutic use , Doping in Sports/legislation & jurisprudence , Doping in Sports/statistics & numerical data
13.
Br J Sports Med ; 50(20): 1267, 2016 Oct.
Article in English | MEDLINE | ID: mdl-27474388

ABSTRACT

In this state-of-the-art review, the author discusses the history of prohibiting glucocorticoids (GCs) and how this has occurred over nearly three decades at the Olympic Games. He relates how prohibiting systemic GCs in sport was a major factor in the development of therapeutic use exemptions and the fluctuating status of non-systemic GCs (banned, not banned). Concern is expressed that for 2017, the World Anti-Doping Agency (WADA) is proposing to prohibit injecting GCs shortly prior to competition. The author notes that in 1986, when GCs were first prohibited, analytical chemistry techniques could not distinguish the route of GC administration from its urinary concentration. Thirty years later, this remains the case. Importantly, this article discusses how the desired pharmacological effects of injecting GCs locally and intra-articularly can be achieved and why exercising vigorously immediately or shortly after a GC injection is therapeutically unsound. The review concludes by agreeing that injecting GCs shortly prior to strenuous training or competition is medically unwise but stresses that this is a clinical matter that sport-not WADA-needs to address. Cycling and rowing have managed this successfully for the past 5 years.


Subject(s)
Doping in Sports/trends , Glucocorticoids/administration & dosage , Substance Abuse Detection/methods , Drug and Narcotic Control , Glucocorticoids/therapeutic use , Humans , Injections, Intra-Articular , Sports , Sports Medicine
14.
PM R ; 8(3 Suppl): S125-32, 2016 Mar.
Article in English | MEDLINE | ID: mdl-26972261

ABSTRACT

Historical reports of doping in sports date as far back as the ancient Greek Olympic Games. The anti-doping community considers doping in sports to be cheating and a violation of the spirit of sport. During the past century, there has been an increasing awareness of the extent of doping in sports and the health risks of doping. In response, the anti-doping movement has endeavored to educate athletes and others about the health risks of doping and promote a level playing field. Doping control is now undertaken in most countries around the world and at most elite sports competitions. As athletes have found new ways to dope, however, the anti-doping community has endeavored to strengthen its educational and deterrence efforts. It is incumbent upon sports medicine professionals to understand the health risks of doping and all doping control processes.


Subject(s)
Athletes/legislation & jurisprudence , Doping in Sports/trends , Sports/legislation & jurisprudence , Humans
15.
J Med Ethics ; 42(4): 220-3, 2016 Apr.
Article in English | MEDLINE | ID: mdl-26560155

ABSTRACT

Debate about the ethics of drug control in sport has largely focused on arguing the relative merits of the existing antidoping policy or the adoption of a health-based harm minimisation approach. A number of ethical challenges arising from antidoping have been identified, and a number of, as yet, unanswered questions remain for the maturing ethics of applying harm minimisation principles to drug control for sport. This paper introduces a 'third approach' to the debate, examining some implications of applying a stakeholder theory of corporate social responsibility (CSR) to the issue of doping in sport. The introduction of the stakeholder-CSR model creates an opportunity to challenge the two dominant schools by enabling a different perspective to contribute to the development of an ethically robust drug control for sport.


Subject(s)
Athletes , Doping in Sports , Drug and Narcotic Control , Harm Reduction , Social Responsibility , Sports/ethics , Doping in Sports/ethics , Doping in Sports/trends , Drug and Narcotic Control/trends , Harm Reduction/ethics , Humans
17.
Rev. psicol. deport ; 25(1): 57-64, 2016. tab, graf
Article in Spanish | IBECS | ID: ibc-146604

ABSTRACT

Este experimento analizó el efecto que el pensamiento deliberativo involucrado en el procesamiento de información relevante produjo sobre la convicción de los participantes en sus actitudes relacionadas con el dopaje. Los participantes fueron entrenadores de fútbol que recibieron por escrito una propuesta (i.e., un mensaje persuasivo) en contra (o a favor) de la legalización de algunas sustancias y conductas consideradas como dopaje en la actualidad. A su vez, la cantidad de pensamiento deliberativo (i.e., la probabilidad de elaboración, alta vs. baja) fue manipulada entre los participantes. Finalmente, las actitudes hacia la propuesta de legalización y la convicción en esas actitudes fueron medidas como variables dependientes. Como se predijo, los resultados mostraron que las actitudes fueron significativamente influidas sólo por la dirección del mensaje persuasivo (η 2 = .064); de tal forma que los entrenadores que recibieron el mensaje en contra de la legalización mostraron actitudes más desfavorables que los que recibieron el mensaje a favor. Sin embargo, como se esperaba, la convicción en las actitudes estuvo sólo en función de la elaboración (η 2 = .050). Así, los entrenadores de la condición de alta probabilidad de elaboración mostraron más convicción en sus actitudes que los de la condición de baja probabilidad de elaboración. En este artículo, discutimos la importancia de esta convicción para comprender y predecir mejor el impacto que las actitudes tienen sobre los consecuentes modos de pensar y de actuar de entrenadores y deportistas respecto al dopaje


This experiment analyzed the effect that deliberative thinking involved in the processing of relevant information had on the conviction of the participants in their doping-related attitudes. Participants were soccer coaches who received a written proposal (i.e., a persuasive message) against (or in favor of) the legalization of several banned substances and doping behaviors. Moreover, the extent of deliberative thinking (i.e., the elaboration likelihood, high vs. low) was manipulated between participants. Finally, attitudes toward the legalization and conviction in those attitudes were assessed as dependent variables. As predicted, results showed attitudes were only affected by the direction of message ( η 2 = .064); thus, coaches who received the message against the legalization showed attitudes more unfavorable than coaches who received the message in favor of the legalization. However, as expected, conviction was only in function of the elaboration ( η 2 = .050). Thus, coaches who were under a high elaboration condition showed more conviction in their attitudes than coaches who were under a low elaboration condition. In this paper, we discuss the importance of conviction to the understanding and the prediction of the impact of attitudes on subsequent thinking and behavior regarding doping in coaches and athletes


ste estudo analisou o efeito que o pensamento deliberativo envolvido no processamento de informação relevante produziu sobre a convicçãodos participantes nas suas atitudes relacionadas com o doping. Os participantes foram treinadores de futebol que receberam por escrito uma proposta(i.e., uma mensagem persuasiva) contra (ou a favor) da legalização de algumas substâncias e comportamentos considerados como doping na actualidade.Por seu turno, a quantidade de pensamento deliberativo (i.e., a probabilidade de elaboração, Alta vs. Baixa) foi manipulada entre os participantes. Porúltimo, as atitudes face à proposta de legalização e a convicção nessas atitudes foram medidas como variáveis dependentes. Como foi hipotetizado, osresultados mostram que as atitudes foram significativamente influídas apenas pela direcção da mensagem persuasiva (η2= .064); de tal forma que ostreinadores que receberam a mensagem contra a legalização revelaram atitudes mais desfavoráveis que os que receberam a mensagem a favor. Contudo,como esperado, a convicção nas atitudes variaram apenas em função da elaboração (η2 = .050). Assim, os treinadores da condição de alta probabilidadede elaboração revelaram mais convicção nas suas atitudes que os da condição de baixa probabilidade de elaboração. Neste artigo, discutimos a importânciadesta convicção para compreender e prever melhor o impacto que as atitudes têm sobre os consequentes modos de pensar e actuar dos treinadores eatletas a respeito do doping


Subject(s)
Adult , Humans , Male , Doping in Sports/ethics , Doping in Sports/legislation & jurisprudence , Doping in Sports/methods , Persuasive Communication , Soccer/physiology , Soccer/statistics & numerical data , Sports/legislation & jurisprudence , Sports/standards , Health Knowledge, Attitudes, Practice , Doping in Sports/statistics & numerical data , Doping in Sports/trends , Soccer/legislation & jurisprudence , Soccer/trends , Analysis of Variance
18.
Adv Exp Med Biol ; 888: 401-8, 2015.
Article in English | MEDLINE | ID: mdl-26663194

ABSTRACT

microRNAs (miRNAs) are small non-coding RNAs that regulate various biological processes. Cell-free miRNAs have been proposed as biomarkers of disease, including diagnosis, prognosis, and monitoring of treatment responses. These circulating miRNAs are highly stable in several body fluids, including plasma and serum; hence, in view of their potential use as novel, non-invasive biomarkers, the profiles of circulating miRNAs have been explored in the field of anti-doping. This chapter describes the enormous potential of circulating miRNAs as a new class of biomarkers for the detection of doping substances, and highlights the advantages of measuring these stable species over other methods that have already been implemented in anti-doping regimes. Incorporating longitudinal measurements of circulating miRNAs into the Athlete Biological Passport is proposed as an efficient strategy for the implementation of these new biomarkers. Furthermore, potential challenges related to the transition of measurements of circulating miRNAs from research settings to practical anti-doping applications are presented.


Subject(s)
Biomarkers/blood , Doping in Sports/prevention & control , MicroRNAs/blood , Substance Abuse Detection/methods , Doping in Sports/trends , Forecasting , Humans , MicroRNAs/genetics , Reproducibility of Results , Reverse Transcriptase Polymerase Chain Reaction , Sensitivity and Specificity , Substance Abuse Detection/trends , Substance-Related Disorders/blood , Substance-Related Disorders/diagnosis , Substance-Related Disorders/genetics
19.
Eur J Endocrinol ; 173(2): R47-58, 2015 Aug.
Article in English | MEDLINE | ID: mdl-25805894

ABSTRACT

Anabolic androgenic steroids (AASs) are appearance and performance-enhancing drugs (APEDs) used in competitive athletics, in recreational sports, and by body-builders. The global lifetime prevalence of AASs abuse is 6.4% for males and 1.6% for women. Many AASs, often obtained from the internet and dubious sources, have not undergone proper testing and are consumed at extremely high doses and in irrational combinations, also along with other drugs. Controlled clinical trials investigating undesired side effects are lacking because ethical restrictions prevent exposing volunteers to potentially toxic regimens, obscuring a causal relationship between AASs abuse and possible sequelae. Because of the negative feedback in the regulation of the hypothalamic-pituitary-gonadal axis, in men AASs cause reversible suppression of spermatogenesis, testicular atrophy, infertility, and erectile dysfunction (anabolic steroid-induced hypogonadism). Should spermatogenesis not recover after AASs abuse, a pre-existing fertility disorder may have resurfaced. AASs frequently cause gynecomastia and acne. In women, AASs may disrupt ovarian function. Chronic strenuous physical activity leads to menstrual irregularities and, in severe cases, to the female athlete triad (low energy intake, menstrual disorders and low bone mass), making it difficult to disentangle the effects of sports and AASs. Acne, hirsutism and (irreversible) deepening of the voice are further consequences of AASs misuse. There is no evidence that AASs cause breast carcinoma. Detecting AASs misuse through the control network of the World Anti-Doping Agency (WADA) not only aims to guarantee fair conditions for athletes, but also to protect them from medical sequelae of AASs abuse.


Subject(s)
Anabolic Agents/adverse effects , Androgens/adverse effects , Athletes , Doping in Sports , Reproduction/drug effects , Anabolic Agents/administration & dosage , Androgens/administration & dosage , Doping in Sports/trends , Female , Humans , Male , Reproduction/physiology
20.
Int J Sport Nutr Exerc Metab ; 25(1): 54-9, 2015 Feb.
Article in English | MEDLINE | ID: mdl-25722470

ABSTRACT

The potential for supplement use to result in doping infringements is likely to be of concern for anyone involved in sports nutrition. The available data indicates that between 40-70% of athletes use supplements, and that between 10-15% of supplements may contain prohibited substances. Such data indicates that there is a considerable risk of accidental or inadvertent doping through using supplements. Accordingly, this paper sets out to provide an overview of the currently available empirical evidence of accidental doping by supplement use. In carrying out this task, the authors refer to press releases and proxy measures associated with nutritional supplement use, as well as statistical data on supplement contamination rates and doping infractions. A number of different indications as to the percentage of doping cases that might be attributed to supplement use are presented, ranging from 6.4% to 8.8%. Such percentages are not comparable; instead they are provided as indications as to how difficult it is to ascertain or estimate the scale of this problem. Although some forms of estimation can be made, it is suggested that it is currently not possible to quantify the scale of the problem. By way of conclusion, it is argued that antidoping regulators may wish to review current data gathering and information provision systems so that the problem of inadvertent doping can be more directly assessed as a factor in sports doping overall.


Subject(s)
Athletes , Dietary Supplements/adverse effects , Doping in Sports , Sports Nutritional Physiological Phenomena , Databases, Factual , Dietary Supplements/standards , Doping in Sports/trends , Food Contamination , Guidelines as Topic , Humans , International Agencies , Internet
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