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A preliminary study on the distribution of morphine and its glucuronides in the subcompartments of bood

The distribution of morphine, morphine-3-glucuronide (M3G), and morphine-6-glucuronide (M6G) in whole blood, plasma, and packed erythrocytes was studied. Parameters investigated were the hematocrit values (10, 42, 44, and 71%) and the water content of the samples. The blood-to-plasma ratio of morphi...

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Bibliographic Details
Main Authors: Skopp, Gisela (Author) , Pötsch, Lucia (Author) , Ganßmann, Beate (Author) , Aderjan, Rolf (Author) , Mattern, Rainer (Author)
Format: Article (Journal)
Language:English
Published: 01 July 1998
In: Journal of analytical toxicology
Year: 1998, Volume: 22, Issue: 4, Pages: 261-264
ISSN:1945-2403
DOI:10.1093/jat/22.4.261
Online Access:Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1093/jat/22.4.261
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Author Notes:Gisela Skopp, Lucia Pötsch, Beate Ganßmann, Rolf Aderjan, Rainer Mattern
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Summary:The distribution of morphine, morphine-3-glucuronide (M3G), and morphine-6-glucuronide (M6G) in whole blood, plasma, and packed erythrocytes was studied. Parameters investigated were the hematocrit values (10, 42, 44, and 71%) and the water content of the samples. The blood-to-plasma ratio of morphine concentrations was unaffected by variations in hematocrit and water content, whereas the corresponding ratios for M3G and M6G were strongly influenced. Ratios were 0.53 to 0.65 and 0.52 to 0.62 in specimens with average hematocrit values (42 and 44%, respectively), and the ratios were 0.81 or 0.89 (hematocrit 10%) and 0.27 or 0.28 (hemalocrit 71%) in blood samples with different hematocrit values. In contrast to the morphine conjugates, morphine was highly bound to or partitioned into red blood cells (βe = 55.9). Although the present data are limited, they already demonstrate that conclusions drawn from pharmacokinetic studies and transferred to parent drug to metabolite ratios resulting from forensic blood samples may be biased by the particular biological matrix under investigation.
Item Description:Gesehen am 15.08.2023
Physical Description:Online Resource
ISSN:1945-2403
DOI:10.1093/jat/22.4.261

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