Urine Caffeine Concentration in Doping Control Samples from 2004 to 2015
نویسندگان
چکیده
منابع مشابه
Prevalence of caffeine use in elite athletes following its removal from the World Anti-Doping Agency list of banned substances.
The aim of this investigation was to determine the use of caffeine by athletes after its removal from the World Anti-Doping Agency list. For this purpose, we measured the caffeine concentration in 20 686 urine samples obtained for doping control from 2004 to 2008. We utilized only urine samples obtained after official national and international competitions. Urine caffeine concentration was det...
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Storing and transporting of urine samples for doping analysis, as performed by the anti-doping organizations associated with the World Anti-Doping Agency, does not include a specific protocol for cooled transport from the place of urine sampling to the doping laboratory, although low cost cooling facilities can easily be made available. As a result, microbial and thermal degradation of the chem...
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CLINICAL CHEMISTRY, Vol. 37, No. 6, 1991 1137 J Clin Lab Invest 1987;47:195-8. 6. Viberti GC, Keen H. The patterns of proteinunia in diabete8 mellitus. Diabetes 1984;33:686-92. 7. Fox JG, Quin JD, Paterson KR, O’Reilly DStJ, Boulton.Jones JM. Impaired glomerulan charge selectivity in microalbuminuria and diabetic nephropathy [Abstract]. Diabetologia 1990;33:67A. None 72(19)b 51 (19) 30(21) Five...
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Five yeast species isolated from caffeine contaminated samples were screened for their capability of caffeine degradation. Based on the degradation efficiency, isolate was selected and identified as Trichosporon asahii which showed 60 % degradation of caffeine in 72 hours when caffeine was utilized as the sole carbon and nitrogen source. The influence of various factors such as pH, temperature,...
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hydrochlorothiazide (hct) is a diuretic agent which is shown to be effective in the treatment of hypertension. literature reports have demonstrated that urinary excretion data may be used to assess the bioavailability of various formulations containing this thiazide. also hct consumption by the athletes is one of the drugs which should be regulated by world anti-doping agency (wada), because of...
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ژورنال
عنوان ژورنال: Nutrients
سال: 2019
ISSN: 2072-6643
DOI: 10.3390/nu11020286