Search Results - "Schänzer, W"

Metabolism of anabolic androgenic steroids by Schanzer, W

“…Anabolic androgenic steroids (AAS) are misused to a high extent in sports by athletes to improve their physical performance. Sports federations consider the…”
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Determination of Vasopressin and Desmopressin in urine by means of liquid chromatography coupled to quadrupole time-of-flight mass spectrometry for doping control purposes by Thomas, A., Solymos, E., Schänzer, W., Baume, N., Saugy, M., Dellanna, F., Thevis, M.

“…[Display omitted] ► Antidiuretic-hormones Vasopressin and Desmopressin have a relevancy in doping controls. ► Determination in urinary specimens by mass…”
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New potential markers for the detection of boldenone misuse by Gómez, C., Pozo, O.J., Geyer, H., Marcos, J., Thevis, M., Schänzer, W., Segura, J., Ventura, R.

“…► A previously unreported boldenone metabolite is detected in human urine. ► This metabolite has been identified as epiboldenone sulphate. ► A method for the…”
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Analyses of Meldonium (Mildronate) from Blood, Dried Blood Spots (DBS), and Urine Suggest Drug Incorporation into Erythrocytes by Tretzel, L, Görgens, C, Geyer, H, Thomas, A, Dib, J, Guddat, S, Pop, V, Schänzer, W, Thevis, M

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Investigation of the in vitro metabolism of the emerging drug candidate S107 for doping-preventive purposes by Beuck, S, Schänzer, W, Thevis, M

“…The metabolic fate of the emerging drug candidate S107, possessing the potential for misuse as performance-enhancing agent in sports, was investigated by in…”
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Solutions Advertised as Erythropoiesis-stimulating Products were Found to Contain Undeclared Cobalt and Nickel Species by Thevis, M, Krug, O, Piper, T, Geyer, H, Schänzer, W

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High-throughput screening for various classes of doping agents using a new 'dilute-and-shoot' liquid chromatography-tandem mass spectrometry multi-target approach by Guddat, S., Solymos, E., Orlovius, A., Thomas, A., Sigmund, G., Geyer, H., Thevis, M., Schänzer, W.

“…A new multi‐target approach based on liquid chromatography – electrospray ionization tandem mass spectrometry (LC‐(ESI)‐MS/MS) is presented to screen for…”
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Clenbuterol - regional food contamination a possible source for inadvertent doping in sports by Guddat, S., Fußhöller, G., Geyer, H., Thomas, A., Braun, H., Haenelt, N., Schwenke, A., Klose, C., Thevis, M., Schänzer, W.

“…The misuse of the sympathomimetic and anabolic agent clenbuterol has been frequently reported in professional sport and in the livestock industry. In 2010, a…”
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AOD-9604 does not influence the WADA hGH isoform immunoassay by Orlovius, A. K., Thomas, A., Schänzer, W., Thevis, M.

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Discrimination of recombinant and endogenous urinary erythropoietin by calculating relative mobility values from SDS gels by Kohler, M, Ayotte, C, Desharnais, P, Flenker, U, Lüdke, S, Thevis, M, Völker-Schänzer, E, Schänzer, W

“…Erythropoietin (EPO) promotes the production of red blood cells, the key factor in the regulation of the oxygen transport, and has been abused by athletes for…”
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Characterisation of the pharmacological profile of desoxymethyltestosterone (Madol), a steroid misused for doping by Diel, P., Friedel, A., Geyer, H., Kamber, M., Laudenbach-Leschowsky, U., Schänzer, W., Thevis, M., Vollmer, G., Zierau, O.

“…Desoxymethyltestosterone (DMT), also known as Madol, is a steroid recently identified to be misused as a doping agent. Since, the knowledge of functions of…”
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Easy-to-use IEF compatible immunoaffinity purification of Erythropoietin from urine retentates by Reihlen, P., Völker-Schänzer, E., Majer, B., Schänzer, W.

“…Erythropoietin (EPO) is a peptide hormone responsible for hypoxia‐induced promotion of erythrocyte production. The possibility of enhancing oxygen transport…”
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Proteases in doping control analysis by Thevis, M, Maurer, J, Kohler, M, Geyer, H, Schänzer, W

“…Urine manipulation in sports drug testing has become a serious problem for doping control laboratories, and recent scandals in elite endurance sports have…”
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Quantification of clenbuterol in human plasma and urine by liquid chromatography-tandem mass spectrometry by THEVIS, M, SCHEBALKIN, T, THOMAS, A, SCHÄNZER, W

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Detection of homologous blood transfusion by Voss, S C, Thevis, M, Schinkothe, T, Schänzer, W

“…The aim of the present study was to improve and validate a flow cytometric method for the detection of homologous blood transfusion in doping control analysis…”
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Di(2-ethylhexyl) phthalate metabolites as markers for blood transfusion in doping control: Intra-individual variability of urinary concentrations by Solymos, E., Guddat, S., Geyer, H., Thomas, A., Thevis, M., Schänzer, W.

“…To indicate homologous or autologous blood transfusion in sports drug testing, quantification of increased urinary concentrations of di(2‐ethylhexyl) phthalate…”
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Quantitative Determination of Adrenaline and Noradrenaline in Urine Using Liquid Chromatography-Tandem Mass Spectrometry by Thomas, A, Geyer, H, Mester, H. J, Schänzer, W, Zimmermann, E, Thevis, M

“…The quantitative determination of adrenaline (A) and noradrenaline (N) in human urine provides a helpful tool for sports sciences as well as clinical purposes…”
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Terbutaline sulfoconjugate: characterization and urinary excretion monitored by LC/ESI-MS/MS by Orlovius, A. K., Guddat, S., Parr, M. K., Kohler, M., Gütschow, M., Thevis, M., Schänzer, W.

“…Terbutaline is a fast‐acting β2‐adrenergic agonist used in the treatment of obstructive pulmonary diseases. Doping control for β2‐agonists, which are forbidden…”
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High speed determination of beta-receptor blocking agents in human urine by liquid chromatography/tandem mass spectrometry by Thevis, Mario, Opfermann, Georg, Schänzer, Wilhelm

“…Beta‐receptor blocking agents are present on the international market in a huge variety. The International Olympic Committee prohibits the use of these drugs…”
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Identification and characterization of urinary prenylamine metabolites by means of liquid chromatography-tandem mass spectrometry by Beuck, S., Sigmund, G., Koch, A., Schänzer, W., Pokrywka, A., Kwiatkowska, D., Thevis, M.

“…Prenylamine is a vasodilator of phenylalkylamine structure and was used for the treatment of angina pectoris, until reports of undesirable effects including…”
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