Results 241 to 250 of about 4,099,134 (392)

Estimation of Plasma Volume by Machine Learning to Improve the Interpretation of the Athlete Biological Passport

open access: yesDrug Testing and Analysis, EarlyView.
A new machine learning model for plasma volume (PV) estimation was applied within the ABP framework. PV estimation was applied through visual displays or corrected ABP thresholds. With a favorable assessment from ABP experts, these results support further application of this model in the presence of specific confounding factors.
Bastien Krumm   +6 more
wiley   +1 more source

Forensic Sciences Research: from dream to reality. [PDF]

open access: yesForensic Sci Res, 2017
Vieira DN, Shen M.
europepmc   +1 more source

mRNA Biomarkers in Dried Blood Spots May Improve Detection of Autologous Blood Micro‐Transfusions Using an Individualized Approach

open access: yesDrug Testing and Analysis, EarlyView.
This study shows that measuring ALAS2 mRNA expression from dried blood spots (DBS) can sensitively identify autologous blood micro‐transfusions (ABMTs) ABMTs with > 95% sensitivity and specificity through individualized analysis. These results highlight ALAS2 mRNA in DBS as a promising tool to strengthen anti‐doping efforts against small‐volume ...
Andreas Breenfeldt Andersen   +7 more
wiley   +1 more source

Origin and Interpretation of Low Methamphetamine Levels Found in Amphetamine‐Positive Urine Samples: Support for Methylation of Amphetamine as a Minor Metabolic Pathway

open access: yesDrug Testing and Analysis, EarlyView.
A low urinary concentration of methamphetamine less than 1% of the amphetamine level may not necessarily indicate polydrug use. Instead, it could result from N‐methylation of amphetamine. Chiral analysis of both amphetamines is an effective method for distinguishing between illicit use and therapeutic sources in positive drug screening results ...
Anders Helander   +2 more
wiley   +1 more source

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