Commentary on current changes of the SoHT 2016 consensus on alcohol markers in hair and further background information.

Détails

ID Serval
serval:BIB_F9D17B323DB4
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Titre
Commentary on current changes of the SoHT 2016 consensus on alcohol markers in hair and further background information.
Périodique
Forensic science international
Auteur(s)
Pragst F., Suesse S., Salomone A., Vincenti M., Cirimele V., Hazon J., Tsanaclis L., Kingston R., Sporkert F., Baumgartner M.R.
ISSN
1872-6283 (Electronic)
ISSN-L
0379-0738
Statut éditorial
Publié
Date de publication
09/2017
Peer-reviewed
Oui
Volume
278
Pages
326-333
Langue
anglais
Notes
Publication types: Journal Article
Publication Status: ppublish
Résumé
The consensus on alcohol markers in hair was revised for the fourth time by an expert group of the Society of Hair Testing based on current state of research. This revision was adopted by the members of the Society during the business meeting in Brisbane on August 29th 2016. For both markers, ethyl glucuronide (EtG) and fatty acid ethyl esters (FAEEs), two cut-off values for discrimination between teetotalers or occasional low amount consumption and moderate alcohol drinking (low cut-off), and between non-excessive (abstinence up to moderate alcohol intake) and chronic excessive drinking (high cut-off value) were critically examined. For the current revision, the cut-off values for EtG (7pg/mg and 30pg/mg, respectively) remained unchanged despite different findings or discussions published in the meantime. This was mainly due to the lack of broader data collections from new studies with great numbers of volunteers following thorough study concepts. In contrast, an essential change of the consensus was accepted for the FAEEs, where the concentration of ethyl palmitate (E16:0) can be used autonomously for interpretation instead of the concentration sum (ΣFAEE) of the four esters ethyl myristate, ethyl palmitate, ethyl oleate and ethyl stearate, as previously applied. After evaluation of the data from seven laboratories, the E16:0 cut-off for abstinence assessment was defined at 0.12ng/mg for the 0-3cm segment and at 0.15ng/mg for the 0-6cm segment. The cut-off for chronic excessive drinking was fixed at 0.35ng/mg for the 0-3cm segment and at 0.45ng/mg for the 0-6cm segment. The use of E16:0 with these cut-offs in place of ΣFAEE for alcohol intake assessment produces only a minor loss in discrimination power, leads to no essential difference in the interpretation concerning chronic excessive alcohol consumption and is suitable to confirm EtG results in abstinence assessment if ethanol containing hair sprays or lotions are excluded.
Mots-clé
Alcohol Abstinence, Alcohol Drinking, Alcoholism/diagnosis, Biomarkers/analysis, Esters/analysis, Fatty Acids/analysis, Glucuronates/analysis, Hair/chemistry, Humans, Sensitivity and Specificity, Societies, Scientific, Alcohol biomarker, Ethyl glucuronide, Ethyl palmitate, Fatty Acid ethyl esters, Hair analysis, SoHT consensus
Pubmed
Web of science
Création de la notice
15/08/2017 7:44
Dernière modification de la notice
20/08/2019 16:25
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