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Segmental determination of ethyl glucuronide in hair: a pilot study.

Appenzeller BM, Agirman R, Neuberg P, Yegles M, Wennig R

Centre de Recherche Public-Santé/Laboratoire National de Santé, Laboratoire de Toxicologie, Université du Luxembourg, Campus Limpertsberg, 162a, avenue de la Faïencerie, L-1511 Luxembourg. appenzel@lns.etat.lu

Ethyl glucuronide (EtG) is a minor metabolite of ethanol. Its detection in hair is more and more studied in both clinical and forensic context for the purpose of alcohol abuse monitoring. In this pilot study, hair specimens from 15 patients included in a treatment program after alcohol abuse cessation, were segmented and analyzed for EtG. The results were then compared to their self-reported past alcohol consumption and to their blood biomarkers values (GGT, MCV, ASAT, ALAT). EtG concentrations measured in hair varied from 8 to 261 pg/mg. The pattern of EtG concentration detected in the different hair segments matched with the drinking history of patients, displaying variations (increase and decrease) in alcohol consumption and also time of cessation. Results also demonstrated the existence of a significant correlation (r(p)=0.5357; p=0.0390) between EtG concentration in hair and the amount of alcohol intake. Variations in the EtG concentrations with respect to hair segments may provide an overview of the drinking history of patients. Moreover, EtG concentration in hair may help to estimate the daily alcohol intake.

Published 23 October 2007 in Forensic Sci Int, 173(2): 87-92.
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