Purpose: The present study aims to recommend appropriate urinary marker metabolites for documenting EG-018 consumption by investigating its metabolism in human hepatocytes. Methods: For metabolite profiling, 10 µM EG-018 was incubated in human hepatocytes for 3 h. Metabolite identification in hepatocyte samples was accomplished with high-resolution mass spectrometry via information-dependent data acquisition. Results: EG-018 was highly metabolized in human hepatocytes. A total of eight metabolites were characterized, mainly generated from hydroxylation and carbonylation on the pentyl chain. Dihydrodiol formation, N-dealkylation, and glucuronidation of hydroxylated metabolites were the other major pathways. Conclusions: The primary metabolites of EG-018 in human hepatocyte incubation were pentyl hydroxylated EG-018 (M6) and pentyl carbonylated EG-018 (M8). These two metabolites are proposed as the best urinary markers for confirming EG-018 intake.
Metabolism of the new synthetic cannabinoid EG-018 in human hepatocytes by high-resolution mass spectrometry / Diao, X.; Carlier, J.; Zhu, M.; Huestis, M. A.. - In: FORENSIC TOXICOLOGY. - ISSN 1860-8965. - 36:2(2018), pp. 304-312. [10.1007/s11419-018-0404-2]
Metabolism of the new synthetic cannabinoid EG-018 in human hepatocytes by high-resolution mass spectrometry
Carlier J.Secondo
;
2018-01-01
Abstract
Purpose: The present study aims to recommend appropriate urinary marker metabolites for documenting EG-018 consumption by investigating its metabolism in human hepatocytes. Methods: For metabolite profiling, 10 µM EG-018 was incubated in human hepatocytes for 3 h. Metabolite identification in hepatocyte samples was accomplished with high-resolution mass spectrometry via information-dependent data acquisition. Results: EG-018 was highly metabolized in human hepatocytes. A total of eight metabolites were characterized, mainly generated from hydroxylation and carbonylation on the pentyl chain. Dihydrodiol formation, N-dealkylation, and glucuronidation of hydroxylated metabolites were the other major pathways. Conclusions: The primary metabolites of EG-018 in human hepatocyte incubation were pentyl hydroxylated EG-018 (M6) and pentyl carbonylated EG-018 (M8). These two metabolites are proposed as the best urinary markers for confirming EG-018 intake.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
