期刊
ALCOHOLISM-CLINICAL AND EXPERIMENTAL RESEARCH
卷 42, 期 11, 页码 2094-2099出版社
WILEY
DOI: 10.1111/acer.13865
关键词
Phosphatidylethanol; Pharmacokinetics; Blood; Alcohol; High-Performance Liquid Chromatography/Mass Spectrometry/Mass Spectrometry
资金
- NIH National Center for Advancing Translational Sciences [UL1TR001120-S1]
- National Institute on Alcohol Abuse and Alcoholism of the National Institutes of Health [R01AA022361, R01AA14988]
- National Institute on Drug Abuse [T32DA031115]
- William and Marguerite Wurzbach Distinguished Professorship
- Nancy U. Karren Professorship Endowment
Background The purpose of this study was to characterize the pharmacokinetics of the phosphatidylethanol (PEth) 16:0/20:4 homolog in uncoagulated human blood samples taken from 18 participants in a clinical laboratory setting after consumption of 2 standard doses of ethanol (EtOH). Methods Male and female participants received either 0.4 or 0.8 g/kg oral doses of EtOH during a 15-minute period. Blood samples were collected before and throughout 6 hours immediately after alcohol administration and then again at days 2, 4, 7, 11, and 14 of the follow-up period. PEth 16:0/20:4 levels were quantified by high-performance liquid chromatography with tandem mass spectrometry detection. Results (i) The increase in PEth 16:0/20:4 from baseline to maximum concentration was less than that of PEth 16:0/18:1 or PEth 16:0/18:2 homologs during the 6-hour period after EtOH administration; (ii) the mean half-life of PEth 16:0/20:4 was 2.1 +/- 3 (SD) days, which was shorter than the mean half-life of either PEth 16:0/18:1 or PEth 16:0/18:2, 7.6 +/- 3 (SD) or 6.8 +/- 4 (SD) days, respectively. Conclusions The pharmacokinetics of PEth 16:0/20:4 in whole blood samples is detectable after alcohol consumption and differs in amount synthesized and rate of elimination versus PEth 16:0/18:1 and 16:0/18:2. Measuring the concentrations of these 3 homologs has the potential to provide more information about the amount and time frame of alcohol consumption than any one alone.
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