Journal Article

Quantitative Analysis of Desmethylselegiline, Methamphetamine, and Amphetamine in Hair and Plasma from Parkinson Patients on Long-Term Selegiline Medication

Robert Kronstrand, Johan Ahlner, Nil Dizdar and Göran Larson

in Journal of Analytical Toxicology

Volume 27, issue 3, pages 135-141
Published in print April 2003 | ISSN: 0146-4760
Published online April 2003 | e-ISSN: 1945-2403 | DOI: http://dx.doi.org/10.1093/jat/27.3.135
Quantitative Analysis of Desmethylselegiline, Methamphetamine, and Amphetamine in Hair and Plasma from Parkinson Patients on Long-Term Selegiline Medication

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Hair and plasma from patients on long-term selegiline medication were analyzed to evaluate the relationships between plasma and hair melanin concentrations and the incorporation of the selegiline metabolites methamphetamine and amphetamine in hair, and to evaluate hair analyses for determining compliance in medication. Analyses were performed on both the whole hairs, as well as pigmented and non-pigmented hairs from gray-haired patients. Melanin was quantitated by spectrophotometry, and metabolites were quantitated by gas chromatography-mass spectrometry. Concentrations in pigmented and non-pigmented hairs differed significantly for both methamphetamine (p < 0.01) and amphetamine (p < 0.02), with mean concentration ratios being 3.69 ± 1.88 and 2.95 ± 1.16 for methamphetamine and amphetamine, respectively. Segmental analysis indicated that some patients had not been compliant with medication. We concluded that the incorporation of methamphetamine and amphetamine into hair of single individuals shows a preference for pigmented hairs over white hairs and that segmental analysis of hair may he useful when measuring compliance with medication.

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Subjects: Medical Toxicology ; Toxicology (Non-medical)

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