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Drug Test
  • March 20, 2025

Assessing EPO stability in urine and comparing recombinant EPO detectability in matched urine, venous serum, and capillary serum following a controlled epoetin alfa administration

A single dose of rEPO was administered to twelve healthy volunteers. EPO stability in urine was assessed at different storage…
Drug Test
  • March 20, 2025

A method for detecting gene doping in horse sports without DNA extraction

We developed direct droplet digital PCR (ddPCR) and nested ddPCR to detect the equine erythropoietin (EPO) transgene without DNA extraction,…
Drug Test
  • March 20, 2025

Current status of keratinized matrices in Toxicology: Comparison of hair and nails

Results of hair, fingernail, and toenail concentrations of drugs of abuse and pharmaceuticals in the literature are reviewed and differences…
Drug Test
  • March 20, 2025

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Drug Test
  • March 20, 2025

Is blood blood? Comparing quantitation of endogenous steroids and luteinizing hormone in concurrently collected venous serum and Tasso+ SST capillary serum samples

Twenty individuals donated venous and capillary serum weekly for 5-6 weeks. Agreement between capillary and venous serum for T, T/A4,…
Drug Test
  • March 20, 2025

Investigative testing of miscellaneous materials

Drug Testing and Analysis, Volume 17, Issue 3, Page 420-426, March 2025.
Drug Test
  • March 20, 2025

Preclinical pharmacokinetic studies of villocarine A, an active Uncaria alkaloid

The pharmacokinetic properties of villocarine A have been determined in a series of in vitro and in vivo studies. Villocarine…
Drug Test
  • March 20, 2025

Estimating human pharmacokinetic parameters for electronic nicotine delivery system products from chemical analyses of their aerosols

The nicotine concentration in the e-liquid of an electronic nicotine delivery system has proved to be a poor predictor of…
Drug Test
  • March 20, 2025

The influence of cosmetic treatments in the uptake of in vitro cocaine contamination in hair

This study investigated how common cosmetic treatments (bleach, henna, gel, and dry shampoo) impact cocaine and benzoylecgonine (BE) concentrations in…
Drug Test
  • March 20, 2025

LC–MS/MS quantification of olanzapine in hair after alkaline digestion

This graphical abstract illustrates every step of the laboratory work in this manuscript. Sample collection, segmentation, and alkaline digestion of…