Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 32
Filtrar
Mais filtros

Base de dados
Tipo de documento
Intervalo de ano de publicação
1.
Schweiz Arch Tierheilkd ; 158(4): 259-65, 2016 Apr.
Artigo em Alemão | MEDLINE | ID: mdl-27518445

RESUMO

INTRODUCTION: The goal of this study was to describe the development of equine drug testing in horses in Switzerland. This was achieved through evaluation of a film made by the Institute of Forensic Medicine at the University of Basel entitled 'Doping von Rennpferden' [Doping of Race Horses], toxicological detection, 1962', the analysis of doping test results of the Swiss Equestrian Federation and by interviewing individuals of various professions who were involved in equine drug testing at the time. The study compares early and modern methods of drug testing and highlights the changes in the attitude of equestrian athletes, horse owners and the general public toward doping in equestrian sports. The high sensitivity of modern analytical methods allows the detection of drugs at levels considerably below therapeutic concentrations. This has resulted in a shift from zero tolerance for Controlled Medication Substances to the establishment of sub-therapeutic threshold concentrations. The lists of performance-enhancing drugs used in doping are updated continually. It became clear from this work that in the early 1960s, Switzerland played a leadership role in anti-doping in equestrian sports, and that the efforts to keep the sport free of performance-enhancing drugs remain exemplary.


INTRODUCTION: Le but du présent travail était d'étudier les débuts des contrôles de médication dans le sport équestre suisse. Il comprend l'analyse du film "Dopage de chevaux de course, mise en évidence toxicologique", un film de 1962 de l'Institut médico-légal de Bâle, une enquête auprès de témoins de l'époque provenant de divers milieux et l'exploitation des résultats des analyses de dopage de la Fédération Suisse des Sports Equestres (FSSE). Ces recherchent montrent comment les contrôles antidopage étaient effectués à l'époque en comparaison à aujourd'hui et comment le positionnement des cavaliers, des propriétaires et de la population en général sur cette question s'est modifiée au cours des années. Vu la très haute sensibilité des méthodes d'analyse utilisées actuellement, de nombreuses substances peuvent être aujourd'hui détectées dans des concentrations sans effet pharmacologique. Cela a conduit pour les médicaments contrôlés (Controlled Medication Substances) a une tendance à l'abandon de la "tolérance zéro" et à l'utilisation de valeurs-limites sans effet thérapeutique. Les listes des substances dopantes sont continuellement mises à jour. Les résultats de cette étude montrent que la Suisse, au début des années soixante, a joué un rôle de précurseur dans le contrôle de médication dans les sports équestres et que ses efforts pour le maintien d'un sport équestre propre restent exemplaires aujourd'hui.


Assuntos
Cavalos , Esportes , Detecção do Abuso de Substâncias/veterinária , Animais , História do Século XX , História do Século XXI , Detecção do Abuso de Substâncias/história , Suíça
2.
Subst Use Misuse ; 49(9): 1152-5, 2014 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-24832912

RESUMO

Brazil will soon host two major sporting events: the 2014 World Cup and the 2016 Summer Olympic Games. Given the importance of antidoping control during these competitions, it is important that the scientific community receive a status update on antidoping control in Brazil. In this brief communication, the authors present the status of antidoping control in Brazil from an historical perspective, both the benefits and difficulties to be faced by antidoping control during these events, and the legacy resulting from the efficacy of the drug testing performed during these competitions.


Assuntos
Dopagem Esportivo/história , Detecção do Abuso de Substâncias/história , Brasil , História do Século XX , História do Século XXI , Humanos
3.
Arch Med Sadowej Kryminol ; 63(4): 301-6, 2013.
Artigo em Polonês | MEDLINE | ID: mdl-24847643

RESUMO

Most likely, opium was the first narcotic substance discovered at the dawn of mankind. Contemporary drug abuse predominantly poses a social and clinical problem and encompasses among other aspects emergency procedures in cases of intoxication and treatment of addictions. On the other hand, this is also a problem of the judicial system, which implements the rule of apt punishment in criminal cases (rapes, robberies, drivers, production and trade in narcotic substances) and of the necessity of monitoring drug-associates deaths. In all drug-associated cases, investigative capabilities have increased with the introduction of extremely sensitive and specific analytical methods (GC-MS, LC/MS, HPLC/DAD) allowing for detection and identification of multi-component mixtures of xenobiotics found at low concentration levels in complex biological matrices. The history of the Krakow Department of Forensic Medicine dates back to the year 1877, since archival materials have been kept since that time. Isolated deaths resulting from morphine poisoning, mostly involving individuals employed in the health care sector, constituted the subject of medico-legal expert opinions starting at the beginning of the 20th century, but only the eighties did bring the need for multidirectional toxicological examinations of opiates and their metabolites in diversified biological and non-biological materials. The present report, in addition to the historical background of opiate addiction, discusses selected problems derived from published by Department reports on opiates, including cases of fatal intoxication, hair analysis of drug addicts in its various aspects, interactions in cases of poisoning and others.


Assuntos
Analgésicos Opioides/história , Prova Pericial , Toxicologia Forense/história , Transtornos Relacionados ao Uso de Opioides/história , Detecção do Abuso de Substâncias/história , Autopsia/história , Causas de Morte , História do Século XIX , História do Século XX , Humanos , Polônia , Mudanças Depois da Morte , Manejo de Espécimes/história
4.
Arch Med Sadowej Kryminol ; 60(2-3): 164-71, 2010.
Artigo em Polonês | MEDLINE | ID: mdl-21520539

RESUMO

The early history of forensic alcohology was presented, based on writings from the beginning of the 20th century and numerous forensic medical protocols from autopsies performed in Institute of Forensic Medicine in Cracow in the 19th and 20th century. Ethanol has not been considered a poison for a long time. Suspicion of its toxic effect resulted from cases of deaths as a results of people betting who can drink more alcohol. In case of alcohol poisoning, autopsy does not show any typical changes, so the poisonings have not been recognized for many years. At the beginning of the 20th century, the first chemical tests appeared. They were able to detect the presence of alcohol in tissues. A method for measuring the amount of alcohol in blood was also developed. The majority of methods were based on distillation of blood and inspection of the resultant distillate by physical methods (interferometry, colorimetry, refractometry, gravimetry, measuring thermal expansion and electrical conduction) or chemical methods using different reactions (oxidation of alcohol to acetic acid, reducing potassium dichromate by alcohol, alkylation of iodine by alcohol) and marking the amount of products of reaction by titration. Distillation of blood samples required complicated chemical devices and was very time consuming. Erik Widmark suggested a certain method in 1920, in which distillation of a blood sample took place in the same container, in which titration was performed earlier--the so-called Widmark's Flask. It allowed for distilling many samples in an incubator at the same time and dramatically shortened the time of research. Widmark's method was applied to testing drivers and people who committed crimes and was used in the whole world for many following years.


Assuntos
Intoxicação Alcoólica/história , Álcoois/história , Toxicologia Forense/história , Detecção do Abuso de Substâncias/história , Alcoolismo/história , Etanol/sangue , História do Século XIX , História do Século XX , Humanos , Polônia
5.
Drug Test Anal ; 12(5): 641-646, 2020 May.
Artigo em Inglês | MEDLINE | ID: mdl-31800156

RESUMO

A summary of the preparations and the operation of the Athens Doping Control Laboratory for the 2004 Olympic Games is presented. The preparations involved an upgrade of the laboratory infrastructure: staff, equipment, space, new analytical methodologies. The operation of the laboratory during the Games created a major number of events in agreement with the International Olympic Committee's commitment to doping-free "clean" Games. This summary was created by the director of the Athens Doping Control Laboratory and reflected the author's outlook 15 years later.


Assuntos
Dopagem Esportivo/história , Detecção do Abuso de Substâncias/história , Grécia , História do Século XX , História do Século XXI , Humanos
7.
J Mass Spectrom ; 43(7): 839-53, 2008 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-18570181

RESUMO

Mass spectrometry has played a decisive role in doping analysis and doping control in human sport for almost 40 years. The standard of qualitative and quantitative determinations in body fluids has always attracted maximum attention from scientists. With its unique sensitivity and selectivity properties, mass spectrometry provides state-of-the-art technology in analytical chemistry. Both anti-doping organizations and the athletes concerned expect the utmost endeavours to prevent false-positive and false-negative results of the analytical evidence. The Olympic Games play an important role in international sport today and are milestones for technical development in doping analysis. This review of the part played by mass spectrometry in doping control from Munich 1972 to Beijing 2008 Olympics gives an overview of how doping analysis has developed and where we are today. In recognizing the achievements made towards effective doping control, it is of the utmost importance to applaud the joint endeavours of the World Anti-Doping Agency, the International Olympic Committee, the international federations and national anti-doping agencies to combat doping. Advances against the misuse of prohibited substances and methods, which are performance-enhancing, dangerous to health and violate the spirit of sport, can be achieved only if all the stakeholders work together.


Assuntos
Dopagem Esportivo/história , Internacionalidade/história , Espectrometria de Massas/história , Esportes/história , Detecção do Abuso de Substâncias/história , História do Século XX , História do Século XXI , Humanos , Espectrometria de Massas/instrumentação , Espectrometria de Massas/métodos , Detecção do Abuso de Substâncias/métodos
8.
Med Sport Sci ; 62: 1-10, 2017.
Artigo em Inglês | MEDLINE | ID: mdl-28571021

RESUMO

The fight against doping in sport as we know it today commenced by the creation of the International Olympic Committee (IOC) Medical Commission in 1961 following the death of a Danish cyclist during the Rome Olympic Games the year before. After a slow start, the fight got under way as from the early 1970s under the leadership of the IOC and of the International Association of Athletics Federations. Despite a lack of understanding and weak support even from the sports community, a series of measures were taken during the 1970s and 1980s which still form cornerstones of today's anti-doping strategy. In addition to information and education campaigns, the most important examples are the introduction of procedural rules for doping controls, the establishment and follow-up of a list of prohibited substances and methods, the accreditation of doping control laboratories, the introduction of in- and out-of-competition testing, rules for therapeutic use exemption, and the introduction of blood sampling. During the 1990s, the anti-doping fight gained increasing support both inside and outside the sport community. In order to harmonize the wide variety of rules that had developed both in sport organizations and at the domestic level and to promote anti-doping activities, the World Anti-Doping Agency (WADA) was jointly created by the Olympic movement and the public authorities in 1999. WADA is today carrying on the fight supported by the universally accepted WADA Code and an International Anti-Doping Convention under UNESCO.


Assuntos
Dopagem Esportivo/prevenção & controle , Esportes/normas , Detecção do Abuso de Substâncias/história , Acreditação , Dopagem Esportivo/história , História do Século XX , História do Século XXI , Humanos , Cooperação Internacional , Laboratórios , Preparações Farmacêuticas , Formulação de Políticas , Detecção do Abuso de Substâncias/normas
11.
Med Sci Law ; 32(2): 139-47, 1992 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-1614299

RESUMO

A study on past toxicological activities in Singapore enabled us to capture the trends of poisons abused in this country over the last 108 years. Until the early sixties, corrosive alkali and acids, alcohol (poisoning cases), inorganic chemicals, heavy metals and plant alkaloids were the mainstay of poisons principally used. The seventies and eighties saw a swing towards pharmaceuticals. The 1988-89 data gave alcohol (poisoning cases), pharmaceuticals, household items such as detergents, hypochlorite and antiseptic, carbon monoxide, paraquat, malathion, organic solvents (toluene and xylenes) and narcotics as the mainstay of poisons encountered. The last two classes of poisons reflect the continuing problems of glue sniffing and narcotics abuse facing Singapore.


Assuntos
Controle de Medicamentos e Entorpecentes/organização & administração , Intoxicação/epidemiologia , Transtornos Relacionados ao Uso de Substâncias/epidemiologia , Toxicologia/tendências , Adulto , Criança , Controle de Medicamentos e Entorpecentes/história , Feminino , História do Século XIX , História do Século XX , Humanos , Masculino , Intoxicação/história , Venenos , Singapura/epidemiologia , Detecção do Abuso de Substâncias/história , Detecção do Abuso de Substâncias/métodos , Transtornos Relacionados ao Uso de Substâncias/história , Transtornos Relacionados ao Uso de Substâncias/prevenção & controle , Toxicologia/história
14.
Transfus Med Rev ; 26(3): 199-208, 2012 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-22119492

RESUMO

Autologous blood transfusions (ABTs) has been used by athletes for approximately 4 decades to enhance their performance. Although the method was prohibited by the International Olympic Committee in the mid 1980s, no direct detection method has yet been developed and implemented by the World Anti-Doping Agency (WADA). Several indirect methods have been proposed with the majority relying on changes in erythropoiesis-sensitive blood markers. Compared with the first methods developed in 1987, the sensitivity of subsequent tests has not improved the detection of blood doping. Nevertheless, the use of sophisticated statistical algorithms has assured a higher level of specificity in subsequent detection models, which is a crucial aspect of antidoping testing particularly to avoid "false positives." Today, the testing markers with the best sensitivity/specificity ratio are the Hbmr model (an algorithm based on the total amount of circulating hemoglobin level [hemoglobin level mass] and percentage of reticulocytes, 4.51·ln(Hbmass)-√%ret) and the OFF-hr model (algorithm based on hemoglobin level concentration and percentage of reticulocytes, Hb(g/L)-60·âˆš%ret). Only the OFF-hr model is currently approved by WADA. Recently, alternative indirect strategies for detecting blood doping have been proposed. One method is based upon a transfusion-induced immune-response resulting in specific changes in gene expression related to leukocytes such as T lymphocytes. Another method relies on detecting increased plasticizer metabolite levels in the urine caused by the leakage of plasticizers from the blood bags used during the blood storage. These methods need further development and validation across different types of transfusion regimes before they can be implemented. In addition, several research projects have been funded by WADA in recent years and are now under development including "Detection of Autologous Blood Transfusions Using Activated Red Blood Cells (the red blood cells eNOS system)" and "Detection of Autologous Blood Transfusion by Proteomic: Screening to find Unique Biomarkers, Detecting Blood Manipulation from Total Hemoglobin Mass using 15-nitric Oxide as a Tracer Gas, Storage Contamination as a Potential Diagnostic Test for Autologous Blood Transfusion and Test for Blood Transfusion (Autologous/Homologous) based on Changes of Erythrocyte Membrane Protome" (WADA, WADA Funded Research Projects. http://www.wada-ama.org/en/Science-Medicine/Research/Funded-Research-Projects/. 2010). Although strategies to detect autologous blood transfusion have improved, a highly sensitive test to detect small volumes of transfused autologous blood has not yet been implemented.


Assuntos
Atletas , Transfusão de Sangue Autóloga , Dopagem Esportivo/história , Dopagem Esportivo/prevenção & controle , Detecção do Abuso de Substâncias/história , Análise Química do Sangue/história , Análise Química do Sangue/métodos , Transfusão de Sangue Autóloga/história , Transfusão de Sangue Autóloga/estatística & dados numéricos , Dopagem Esportivo/métodos , Hemoglobinas/metabolismo , História do Século XX , História do Século XXI , Humanos , Plastificantes/farmacologia , Detecção do Abuso de Substâncias/métodos
15.
Drug Test Anal ; 4(12): 893-6, 2012 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-22972693

RESUMO

The history of isotope ratio mass spectrometry (IRMS) is briefly described. It is shown that the fundamental design of isotope ratio mass spectrometers has not changed since the 1940s. The basic findings concerning the natural variation of isotope abundances even date back to the 1930s. Recent improvements in the methodology mainly concern online coupling and analytical peripherals. The nature of isotopic scales necessitates a specific terminology which is unfamiliar to many analysts. However, corresponding guidelines exist that should be adopted by the anti-doping community. Currently, steroids represent the only group of compounds routinely analyzed by IRMS in doping-control. Suggestions are made in respect to a harmonized terminology concerning the nature and origins of steroids.


Assuntos
Anabolizantes/urina , Isótopos de Carbono/urina , Dopagem Esportivo , Cromatografia Gasosa-Espectrometria de Massas , Substâncias para Melhoria do Desempenho/urina , Esteroides/urina , Detecção do Abuso de Substâncias/métodos , Anabolizantes/classificação , Biomarcadores/urina , Isótopos de Carbono/história , Dopagem Esportivo/história , Cromatografia Gasosa-Espectrometria de Massas/história , História do Século XX , História do Século XXI , Humanos , Substâncias para Melhoria do Desempenho/classificação , Substâncias para Melhoria do Desempenho/história , Valor Preditivo dos Testes , Esteroides/classificação , Detecção do Abuso de Substâncias/história , Terminologia como Assunto
16.
J Anal Toxicol ; 35(9): 608-12, 2011 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-22080899

RESUMO

The List of Prohibited Substances and Methods (the List) is the International Standard that determines what is prohibited in sport in- and out-of-competition. The official text of the List is produced by the World Anti-Doping Agency (WADA), the international independent organization responsible for promoting, coordinating and monitoring the fight against doping in sport. The drafting of the annual List is a highly interactive and consultative process involving scientific and medical experts in anti-doping, sport federations and governments. In this article, the elements that compose the List as well as the process behind its annual revision and update are presented.


Assuntos
Dopagem Esportivo/métodos , Dopagem Esportivo/prevenção & controle , Agências Internacionais , Organizações sem Fins Lucrativos , Substâncias para Melhoria do Desempenho/classificação , Dopagem Esportivo/história , Dopagem Esportivo/tendências , História do Século XIX , História do Século XX , História do Século XXI , Agências Internacionais/história , Organizações sem Fins Lucrativos/história , Substâncias para Melhoria do Desempenho/história , Formulação de Políticas , Detecção do Abuso de Substâncias/história , Detecção do Abuso de Substâncias/métodos , Detecção do Abuso de Substâncias/tendências
17.
J Anal Toxicol ; 35(9): 624-37, 2011 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-22080902

RESUMO

The prohibition on use of cannabinoids in sporting competitions has been widely debated and continues to be a contentious issue. Information continues to accumulate on the adverse health effects of smoked marijuana and the decrement of performance caused by the use of cannabinoids. The objective of this article is to provide an overview of cannabinoids and cannabimimetics that directly or indirectly impact sport, the rules of sport, and performance of the athlete. This article reviews some of the history of marijuana in Olympic and Collegiate sport, summarizes the guidelines by which a substance is added to the World Anti-Doping Agency Prohibited List, and updates information on the pharmacologic effects of cannabinoids and their mechanism of action. The recently marketed cannabimimetics Spice and K2 are included in the discussion as they activate the same receptors as are activated by THC. The article also provides a view as to why the World Anti-Doping Agency prohibits cannabinoid or cannabimimetic use incompetition and should continue to do so.


Assuntos
Desempenho Atlético , Canabinoides/análise , Dopagem Esportivo/prevenção & controle , Abuso de Maconha/prevenção & controle , Substâncias para Melhoria do Desempenho/análise , Desempenho Atlético/história , Canabinoides/história , Dopagem Esportivo/história , Dopagem Esportivo/legislação & jurisprudência , História do Século XX , História do Século XXI , Humanos , Abuso de Maconha/história , Substâncias para Melhoria do Desempenho/história , Detecção do Abuso de Substâncias/história , Detecção do Abuso de Substâncias/legislação & jurisprudência
18.
J Forensic Sci ; 55(2): 451-6, 2010 Mar 01.
Artigo em Inglês | MEDLINE | ID: mdl-20070464

RESUMO

The alcohol breath test (ABT) has been used for quantification of ethyl alcohol in individuals suspected of driving under the influence for more than 50 years. In this time, there has been little change in the concepts underlying this single breath test. The old model, which assumes that end-exhaled breath alcohol concentration is closely related to alveolar air alcohol concentration, is no longer acceptable. This paper reviews experimental research and mathematical modeling which has evaluated the pulmonary exchange processes for ethyl alcohol. Studies have shown that alcohol exchanges dynamically with the airway tissue both during inspiration and expiration. The airway tissue interaction makes it impossible to deliver air with alveolar alcohol concentration to the mouth. It is concluded that the ABT is dependent on physiological factors that need to be assessed for accurate testing.


Assuntos
Testes Respiratórios , Depressores do Sistema Nervoso Central/análise , Etanol/análise , Detecção do Abuso de Substâncias/métodos , Consumo de Bebidas Alcoólicas , Condução de Veículo/legislação & jurisprudência , Expiração/fisiologia , Medicina Legal , História do Século XX , História do Século XXI , Humanos , Inalação/fisiologia , Troca Gasosa Pulmonar/fisiologia , Mucosa Respiratória/fisiologia , Detecção do Abuso de Substâncias/história
19.
Pain Physician ; 13(2): 167-86, 2010.
Artigo em Inglês | MEDLINE | ID: mdl-20309383

RESUMO

BACKGROUND: Urine drug testing has become a widely used tool in American society for deterring illicit drug use. In the practice of medicine, urine drug testing is commonly used to help diagnose substance misuse, abuse, or addiction. OBJECTIVE: This narrative review provides an informed perspective on the importance of urine drug testing in the medical treatment of chronic noncancer pain. The history and current uses of urine drug tests in the United States are reviewed, the prevalence and nature of prescription drug misuse is described as is related to chronic noncancer pain, and implications and considerations for practitioners are presented related to the noncancer pain diagnosis and treatment. DISCUSSION: Practitioners are confronted with the ethical and legal dilemma of being called to adequately treat chronic pain in a culture with a high prevalence of prescription drug abuse. Yet the symptoms of drug abuse are nonspecific and therefore of limited value to the practitioner in determining patient compliance to drug treatment regimens. In contrast, urine drug testing has a reliable history, both in and out of medicine, as an independent sign of drug misuse. This sign can be used to aid in the diagnosis and treatment of drug misuse and underlying addictions to improve patient outcomes. CONCLUSION: Regular urine drug testing should be a part of acute and chronic pain management whether or not the patient has any signs or symptoms of drug misuse.


Assuntos
Legislação de Medicamentos/tendências , Medicare/tendências , Transtornos Relacionados ao Uso de Opioides/diagnóstico , Transtornos Relacionados ao Uso de Opioides/urina , Dor Intratável/tratamento farmacológico , Detecção do Abuso de Substâncias/normas , Urinálise/normas , História do Século XX , Humanos , Kentucky , Transtornos Relacionados ao Uso de Opioides/prevenção & controle , Dor Intratável/prevenção & controle , Padrões de Prática Médica/legislação & jurisprudência , Padrões de Prática Médica/normas , Padrões de Prática Médica/tendências , Prescrições/normas , Detecção do Abuso de Substâncias/história , Detecção do Abuso de Substâncias/legislação & jurisprudência , Estados Unidos , Urinálise/história
SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA