Screening of testosterone esters in human plasma.

abstract：:The Ministry of Health in the Netherlands has made illicit drug testing for drug users possible since the 1990s, in order to prevent serious health hazards associated with unexpected dangerous substances. This system of illicit drug testing is called the Drug Information and Monitoring System (DIMS). In nearly two dec...

journal_title：Drug testing and analysis

authors： Brunt TM,Niesink RJ

更新日期：2011-09-01 00:00:00

abstract：:Cobalt is a well-established inducer of hypoxia-like responses, which can cause gene modulation at the hypoxia inducible factor pathway to induce erythropoietin transcription. Cobalt salts are orally active, inexpensive, and easily accessible. It is an attractive blood doping agent for enhancing aerobic performance. I...

journal_title：Drug testing and analysis

authors： Ho EN,Chan GH,Wan TS,Curl P,Riggs CM,Hurley MJ,Sykes D

更新日期：2015-01-01 00:00:00

abstract：:The synthetic tryptamine 5-methoxy-N-methyl-N-isopropyltryptamine (5-MeO-MiPT) has recently been abused as a hallucinogenic drug in Germany and Switzerland. This study presents a case of 5-MeO-MiPT intoxication and the structural elucidation of metabolites in pooled human liver microsomes (pHLM), blood, and urine. Mic...

journal_title：Drug testing and analysis

authors： Grafinger KE,Hädener M,König S,Weinmann W

更新日期：2018-03-01 00:00:00

abstract：:The present study was designed to provide preliminary information on the potential impact of metabolic drug-drug interaction on the effectiveness of doping control strategies currently followed by the anti-doping laboratories to detect the intake of prohibited agents. In vitro assays based on the use of human liver mi...

journal_title：Drug testing and analysis

authors： Mazzarino M,de la Torre X,Fiacco I,Botrè F

更新日期：2014-10-01 00:00:00

abstract：:Accurate on-site devices to screen for drug intake are critical for establishing whether an individual is driving under the influence of drugs (DUID); however, on-site oral fluid (OF) cocaine device performance is variable. We evaluated the performance of a newly developed benzoylecgonine (BE) test-strip for the Draeg...

journal_title：Drug testing and analysis

authors： Ellefsen KN,Concheiro M,Pirard S,Gorelick DA,Huestis MA

更新日期：2016-03-01 00:00:00

abstract：:In the field of natural extracts, research generally focuses on the study of their biological activities for food, cosmetic, or pharmacological purposes. The evaluation of their adverse effects is often overlooked. In this study, the extracts of Thymus vulgaris L. were obtained by two different extraction methods. Int...

journal_title：Drug testing and analysis

authors： Benourad F,Kahvecioglu Z,Youcef-Benkada M,Colet JM

更新日期：2014-10-01 00:00:00

abstract：:Abuse of gamma-hydroxybutyric acid (GHB) has been known since the early 1990's, but is not as widespread as the consumption of other illegal drugs. However, the number of severe intoxications with fatal outcomes is comparatively high; not the least of which is brought about by the consumption of the currently legal pr...

journal_title：Drug testing and analysis

authors： Andresen H,Aydin BE,Mueller A,Iwersen-Bergmann S

更新日期：2011-09-01 00:00:00

abstract：:Synthetic cannabinoids are the psychotropic compounds frequently identified as active components of smoking mixtures easily available via the Internet in several countries. These herbal blends have become extremely popular as a legal alternative to cannabis-based products and are difficult to detect by regular drug te...

journal_title：Drug testing and analysis

authors： Sobolevsky T,Prasolov I,Rodchenkov G

更新日期：2012-10-01 00:00:00

abstract：:Therapeutic drug monitoring of antipsychotics is important in optimizing individual therapy. In psychiatric populations, classical venous blood sampling is experienced as frightening. Interest in alternative techniques, like dried blood spots (DBS), has consequently increased. A fast and easy to perform DBS method for...

journal_title：Drug testing and analysis

authors： Patteet L,Maudens KE,Stove CP,Lambert WE,Morrens M,Sabbe B,Neels H

更新日期：2015-06-01 00:00:00

abstract：:Xenon is a modern inhalative anaesthetic with a very low solubility in tissues providing rapid elimination and weaning from anaesthesia. Besides its anaesthetic properties, Xenon promotes the endogenous erythropoietin biosynthesis and thus has been enlisted as prohibited substance by the World Anti-Doping Agency (WADA...

journal_title：Drug testing and analysis

authors： Schaefer MS,Piper T,Geyer H,Schneemann J,Neukirchen M,Thevis M,Kienbaum P

更新日期：2017-05-01 00:00:00

abstract：:Hemp nuts are mature cannabis seeds obtained after shelling and that are commonly used in traditional Chinese medicine for treating functional constipation. In this work, we screened hemp nut products, classified them, and verified the legality of consuming them. A total of 18 products were purchased from Taiwan, Chin...

journal_title：Drug testing and analysis

authors： Chang CW,Tung CW,Tsai CC,Wu YT,Hsu MC

更新日期：2017-06-01 00:00:00

abstract：:The method of high sensitive gas chromatographic/time-of-flight mass-spectrometric (GC/TOF-MS) analysis of steroids was developed. Low-resolution TOF-MS instrument (with fast spectral acquisition rate) was used. This method is based on the formation of the silyl derivatives of steroids; exchange of the reagent mixture...

journal_title：Drug testing and analysis

authors： Revelsky AI,Samokhin AS,Virus ED,Rodchenkov GM,Revelsky IA

更新日期：2011-04-01 00:00:00

abstract：:Sulfate metabolites have been described as long-term metabolites for some anabolic androgenic steroids (AAS). 4-chlorometandienone (4Cl-MTD) is one of the most frequently detected AAS in sports drug testing and it is commonly detected by monitoring metabolites excreted free or conjugated with glucuronic acid. Sulfatio...

journal_title：Drug testing and analysis

authors： Balcells G,Gómez C,Garrostas L,Pozo ÓJ,Ventura R

更新日期：2017-07-01 00:00:00

abstract：:1-Propanoyl-lysergic acid diethylamide (1P-LSD) appeared as a non-controlled alternative to LSD a few years ago. Although evidence is beginning to emerge from in vitro and animal studies that 1P-LSD might serve as a prodrug for LSD, an equivalent evaluation in humans is unavailable. Controlled oral and intravenous sel...

journal_title：Drug testing and analysis

authors： Grumann C,Henkel K,Brandt SD,Stratford A,Passie T,Auwärter V

更新日期：2020-08-01 00:00:00

abstract：:The determination of protein- or peptide-based performance-enhancing pharmaceuticals has gained increasing attention in sports drug testing in recent decades. Proteases possess a high potential for use in the manipulation of regular urine specimens, interfering with established doping control procedures for proteins o...

journal_title：Drug testing and analysis

authors： Thomas A,Kohler M,Walpurgis K,Schänzer W,Thevis M

更新日期：2009-02-01 00:00:00

abstract：:Amphetamine (AMP) is used as an illicit drug and also for the treatment of attention deficit hyperactivity disorder (ADHD). Respective drugs most often contain the enantiomer (S)-AMP as active compound or (S)-AMP is formed from the prodrug lisdexamfetamine (Elvanse®) whereas the illicit drug is usually traded as racem...

journal_title：Drug testing and analysis

authors： Binz TM,Williner E,Strajhar P,Dolder PC,Liechti ME,Baumgartner MR,Kraemer T,Steuer AE

更新日期：2018-02-01 00:00:00

abstract：:Even though hair analysis often seems to be the best choice for retrospective monitoring of cocaine intake, differentiating between incorporated cocaine and external contamination is widely debated. In this study we report results obtained in 90 hair samples from addicts. All samples were analyzed for cocaine, benzoyl...

journal_title：Drug testing and analysis

authors： Gambelunghe C,Rossi R,Aroni K,Gili A,Bacci M,Pascali V,Fucci N

更新日期：2017-02-01 00:00:00

abstract：:Tretoquinol (trimetoquinol), a β2-agonist, has been explicitly listed on the World Anti-Doping Agency Prohibited List 2019 since January 2019; however, it has been distributed as an antiasthmatic on the medical market. This study aimed to develop a liquid chromatography-tandem mass spectrometric method for the quantif...

journal_title：Drug testing and analysis

authors： Okano M,Miyamoto A,Sato M,Kageyama S

更新日期：2019-11-01 00:00:00

abstract：:The second programme of its kind globally, the highly successful, collaborative, productive and energizing IFDAT-International Forum for Drug and Alcohol Testing, was held in Barcelona, Spain, from 12-14 April. IFDAT was attended by over 100 delegates, conference sponsors and exhibitors from the international workplac...

journal_title：Drug testing and analysis

authors： Kenney J D JE,Björklöv P

更新日期：2011-03-01 00:00:00

abstract：:According to the World Anti-Doping Agency (WADA) technical document for erythropoiesis stimulating agents (ESA) analysis (TD2014EPO), double-blotting of serum/plasma samples is mandatory for all analysis by isoelectric focusing (IEF) and for the confirmation procedures (CP) performed by SDS-PAGE or SAR-PAGE. The goal ...

journal_title：Drug testing and analysis

authors： Desharnais P,Naud JF,Ayotte C

更新日期：2017-11-01 00:00:00

abstract：:MicroRNAs (miRNAs) are small, non-protein coding transcripts involved in many cellular and physiological mechanisms. Recently, a new class of miRNA called 'circulating miRNAs' was found in cell-free body fluids such as plasma and urine. Circulating miRNAs have been shown to be very stable, specific, and sensitive biom...

journal_title：Drug testing and analysis

authors： Leuenberger N,Jan N,Pradervand S,Robinson N,Saugy M

更新日期：2011-11-01 00:00:00

abstract：:Metal ion coordination ionspray (M(+) CIS) ionization is a powerful technique to enhance ionization efficiency and sensitivity. In this study, we developed and validated an analytical method for simultaneous ionization and analysis of 84 anabolic androgenic steroids (65 exogenous and 19 endogenous) using liquid chroma...

journal_title：Drug testing and analysis

authors： Kim SH,Cha EJ,Lee KM,Kim HJ,Kwon OS,Lee J

更新日期：2014-11-01 00:00:00

abstract：:Doping with natural steroids can be detected by evaluating the urinary concentrations and ratios of several endogenous steroids. Since these biomarkers of steroid doping are known to present large inter-individual variations, monitoring of individual steroid profiles over time allows switching from population-based to...

journal_title：Drug testing and analysis

authors： Van Renterghem P,Van Eenoo P,Sottas PE,Saugy M,Delbeke F

更新日期：2010-11-01 00:00:00

abstract：:We recently published two protocols for the detection of Sotatercept (ACE-011, ACVR2A-Fc) and Luspatercept (ACE-536, ACVR2B-Fc) in human serum. Both methods used covalently immobilized antibodies on agarose beads for immunoprecipitation and SAR-PAGE/Western blotting for detection. Disadvantages were the relatively hig...

journal_title：Drug testing and analysis

authors： Reichel C,Gmeiner G,Walpurgis K,Thevis M

更新日期：2018-11-01 00:00:00

abstract：:Addiction is a complex disorder with interacting factors, including environmental factors, drug-induced neurobiological changes, comorbidity, personality traits and stress responsivity. Numerous genetic variants that affect these factors may work in concert to affect vulnerability and severity of addiction. Traditiona...

journal_title：Drug testing and analysis

authors： Fattore L

更新日期：2013-01-01 00:00:00

abstract：:The quantitative structure-property relationship (QSPR) of drug molecules against the immobilized liposome chromatography partitioning (log K(s)) was studied. The genetic algorithm (GA) was employed to select the variables that resulted in the best-fitted models. After the variables were selected, the linear multivari...

journal_title：Drug testing and analysis

authors： Noorizadeh H,Farmany A

更新日期：2012-02-01 00:00:00

abstract：:The widespread use of antibiotics in animals is causing concerns about the growing risk for development and the spread of antibiotic-resistant bacteria. Antibiotic consumption is higher in animals than in humans as reported in a joint publication of EFSA (European Food Safety Agency), ECDC (European Centre for Disease...

journal_title：Drug testing and analysis

authors： Daeseleire E,De Graef E,Rasschaert G,De Mulder T,Van den Meersche T,Van Coillie E,Dewulf J,Heyndrickx M

更新日期：2016-05-01 00:00:00

abstract：:New bioanalytical assays were developed, validated, and applied in a clinical study for quantitative measurement of acetaminophen concentrations in blood and plasma samples. Furthermore, after validation, the bioanalytical assays were used for determination of pharmacokinetics within a group of six healthy male human ...

journal_title：Drug testing and analysis

authors： Rincón JP,Meesters RJ

更新日期：2014-06-01 00:00:00

abstract：:Three multivariate calibration methods, including classical least square with nonzero intercept (CLS), principal component regression (PCR) and partial least square (PLS), have been used for the determination of pyritinol dihydrochloride in the presence of its degradation product. The CLS, PCR and PLS techniques are u...

journal_title：Drug testing and analysis

authors： El-Sayed MA,Abdul-Azim Mohammad M

更新日期：2009-05-01 00:00:00

abstract：:In doping control analysis, the characterization of urinary steroid metabolites is of high interest for a targeted and long-term detection of prohibited anabolic androgenic steroids (AAS). In this work, the structure of a long-term metabolite of dehydrochloromethyltestosterone (DHCMT) was elucidated. Altogether, 8 pos...

journal_title：Drug testing and analysis

authors： Forsdahl G,Geisendorfer T,Göschl L,Pfeffer S,Gärtner P,Thevis M,Gmeiner G

更新日期：2018-03-23 00:00:00