Publications by authors named "Sys Stybe Johansen"

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Toxicological findings in suspected drugging incidents in Denmark from 2022 - 2024.
Charlotte Uggerhøj Andersen, Sys Stybe Johansen, Karen Rygaard, Simon Kjær Hermansen, Brian Schou Rasmussen

Forensic Toxicol· December 2025

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Single-dose psilocybin therapy for alcohol use disorder: Pharmacokinetics, feasibility, safety and efficacy in an open-label study.
Mathias Ebbesen Jensen, Dea Siggaard Stenbæk, Catharina Dragsted Messell, Emil Deleuran Poulsen, Tibor V Varga, Sys Stybe Johansen

J Psychopharmacol· May 2025

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Automated enzymatic hydrolysis of urine samples for improved systematic toxicological analysis of drug-facilitated sexual assault cases.
Kathrine Skov, Sys Stybe Johansen, Kristian Linnet, Marie Katrine Klose Nielsen

Drug Test Anal· November 2024

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Exploring Enzymatic Hydrolysis of Urine Samples for Investigation of Drugs Associated with Drug-Facilitated Sexual Assault.
Kathrine Skov, Sys Stybe Johansen, Kristian Linnet, Brian Schou Rasmussen, Marie Katrine Klose Nielsen

Pharmaceuticals (Basel)· December 2023

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Uncovering forensic evidence of drug-facilitated sexual assault: Toxicological findings from Eastern Denmark from 2015-2022.
Kathrine Skov, Sys Stybe Johansen, Kristian Linnet, Marie Katrine Klose Nielsen

Leg Med (Tokyo)· November 2023

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Detection of scopolamine in urine and hair in a drug-facilitated sexual assault.
Simon Emil Melchior, Marie Katrine Klose Nielsen, Athamaica Ruiz Oropeza, Jytte Banner, Sys Stybe Johansen

Forensic Sci Int· June 2023

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Driving under the Influence of Amphetamine: Analytical Evaluation of Illegal or Prescription Drug Intake Using Chiral UHPLC-MS-MS.
Marie Katrine Klose Nielsen, Nina Zacho Andersen, Brian Schou Rasmussen, Sys Stybe Johansen

J Anal Toxicol· March 2023

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Concentrations of citalopram and escitalopram in postmortem hair segments.
Karen Rygaard, Marie Katrine Klose Nielsen, Kristian Linnet, Jytte Banner, Sys Stybe Johansen

Forensic Sci Int· July 2022

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A Systematic Review of Metabolite-to-Drug Ratios of Pharmaceuticals in Hair for Forensic Investigations.
Karen Rygaard, Kristian Linnet, Sys Stybe Johansen

Metabolites· October 2021

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Postmortem Brain-Blood Ratios of Codeine, Fentanyl, Oxycodone and Tramadol.
Michael Nedahl, Sys Stybe Johansen, Kristian Linnet

J Anal Toxicol· February 2021

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Effects of a single dose of psilocybin on behaviour, brain 5-HT receptor occupancy and gene expression in the pig.
Lene Lundgaard Donovan, Jens Vilstrup Johansen, Nídia Fernandez Ros, Elham Jaberi, Kristian Linnet, Sys Stybe Johansen

Eur Neuropsychopharmacol· January 2021

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Concentrations of aripiprazole and dehydroaripiprazole in hair segments from deceased individuals with mental disorders.
Karen Rygaard, Kristian Linnet, Jytte Banner, Sys Stybe Johansen

Forensic Sci Int· December 2020

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Temporal patterns of tramadol in hair after a single dose.
Sys Stybe Johansen, Linda Tuong Vy Le Dang, Marie Katrine Klose Nielsen, Pernilla Haage, Fredrik Carl Kugelberg

Forensic Sci Int· November 2020

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Segmental hair analysis of olanzapine and N-desmethyl-olanzapine in postmortem hair from mentally ill patients by LC-MS/MS.
Kamilla Nyborg Günther, Jytte Banner, Kristian Linnet, Sys Stybe Johansen

J Pharm Biomed Anal· October 2020

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Internal quality control samples for hair testing.
Marie Katrine Klose Nielsen, Sys Stybe Johansen

J Pharm Biomed Anal· September 2020

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In vitro and in vivo metabolism and detection of 3-HO-PCP, a synthetic phencyclidine, in human samples and pooled human hepatocytes using high resolution mass spectrometry.
Anders Bork Davidsen, Marie Mardal, Sys Stybe Johansen, Petur Weihe Dalsgaard, Kristian Linnet

Drug Test Anal· July 2020

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Ketamine analogues: Comparative toxicokinetic in vitro-in vivo extrapolation and quantification of 2-fluorodeschloroketamine in forensic blood and hair samples.
Anders Bork Davidsen, Marie Mardal, Niels Bjerre Holm, Anna Katrine Andreasen, Sys Stybe Johansen

J Pharm Biomed Anal· February 2020

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Distribution of zopiclone and main metabolites in hair following a single dose.
Stine Lund Hansen, Sys Stybe Johansen, Marie Katrine Klose Nielsen, Gunnel Nilsson, Robert Kronstrand

Forensic Sci Int· January 2020

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Hair testing for cortisol by UPLC-MS/MS in a family: External cross-contamination from use of cortisol cream.
Xin Wang, Johannes Rødbro Busch, Jytte Banner, Kristian Linnet, Sys Stybe Johansen

Forensic Sci Int· December 2019

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Identification of phenobarbital and other barbiturates in forensic drug screening using positive electrospray ionization liquid chromatography-high resolution mass spectrometry.
Lars Jakobsen Høj, Christian Brinch Mollerup, Brian Schou Rasmussen, Sys Stybe Johansen, Kristian Linnet

Drug Test Anal· August 2019

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Brain-blood ratio of morphine in heroin and morphine autopsy cases.
Michael Nedahl, Sys Stybe Johansen, Kristian Linnet

Forensic Sci Int· August 2019

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Postmortem Brain-Blood Ratios of Amphetamine, Cocaine, Ephedrine, MDMA and Methylphenidate.
Michael Nedahl, Sys Stybe Johansen, Kristian Linnet

J Anal Toxicol· June 2019

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Segmental Hair Analysis-Interpretation of the Time of Drug Intake in Two Patients Undergoing Drug Treatment.
Xin Wang, Sys Stybe Johansen, Marie Katrine Klose Nielsen, Kristian Linnet

J Forensic Sci· May 2019

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Retrospective analysis for valproate screening targets with liquid chromatography-high resolution mass spectrometry with positive electrospray ionization: An omics-based approach.
Christian Brinch Mollerup, Brian Schou Rasmussen, Sys Stybe Johansen, Marie Mardal, Kristian Linnet

Drug Test Anal· May 2019

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Segmental Analysis of Chlorprothixene and Desmethylchlorprothixene in Postmortem Hair.
Kamilla Nyborg Günther, Sys Stybe Johansen, Petra Wicktor, Jytte Banner, Kristian Linnet

J Anal Toxicol· November 2018

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