Detection of bemitil and its metabolite in urine by means of LC-MS/MS in view of doping control analysis.

2-(Ethylthio) benzimidazole is an active ingredient of Antihot, a dietary supplement sold in Ukraine. The substance, available also under names of Bemitil, Metaprot, and Bemaktor, was developed in the USSR in 1970s, and after tests on Soviet cosmonauts and soldiers, several studies on its influence on athletes' performances were conducted. The research showed that bemitil is a synthetic adaptogen which is capable to significantly increase physical performance and reduce the time of regeneration.

The influence of caffeine on ethyl glucuronide levels in rat serum and in rat hair.

Background: Ethanol and caffeine are the most widely used psychoactive substances in the world, with an observed steady increase in the combined consumption of alcohol and caffeine. Specific signs of ethanol-caffeine interactions have been reported both in humans and in animals. The metabolic effects of these interactions have not been fully elucidated.

Analysis for higenamine in urine by means of ultra-high-performance liquid chromatography-tandem mass spectrometry: Interpretation of results.

Higenamine (Norcoclaurine) is a very popular substance in Chinese medicine and is present in many plants. The substance may be also found in supplements or nutrients, consumption of which may result in violation of anti-doping rules. Higenamine is prohibited in sport at all times and included in Class S3 (β-2-agonists) of the World Anti-Doping Agency (WADA) 2017 Prohibited List.

Comparison of Chemical Composition in Tuber aestivum Vittad. of Different Geographical Origin.

Truffles are prized and nutrition-rich edible hypogeous fungi. The aim of this study was a comprehensive investigation of chemical composition of Burgundy truffle (Tuber aestivum Vittad.).