Sys Stybe Johansen

Sys Stybe Johansen

Associate Professor


  1. Published

    Medicin, narkotika og færdselsuheld

    Barnhoft, I. M., Steentoft, A., Johansen, Sys Stybe & Klitgaard, N. A., 2005, København.

    Research output: Book/ReportReportCommunication

  2. Published

    Drugs in injured drivers in Denmark

    Bernhoft, I. M., Steentoft, A., Johansen, Sys Stybe, Klitgaard, N. A., Larsen, L. B. & Hansen, L. B., 2005, In: Forensic Science International. 150, 2-3, p. 181-189

    Research output: Contribution to journalJournal articleResearchpeer-review

  3. Published

    Postmortem Blood Concentrations of R- and S-Enantiomers of Methadone and EDDP in Drug Users: Influence of Co-Medication and P-glycoprotein Genotype

    Buchard, Anders, Linnet, Kristian, Johansen, Sys Stybe, Munkholm, Julie, Fregerslev, M. & Morling, Niels, 2010, In: Journal of Forensic Sciences. 55, 2, p. 457-63 7 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  4. Published

    Hair cortisol concentrations in decedents with severe mental illness – An autopsy-based cohort study

    Busch, Johannes Rødbro, Wang, X., Lynnerup, Niels, Jacobsen, Christina, Jørgensen, Martin Balslev, Linnet, Kristian, Johansen, Sys Stybe & Banner, Jytte, Jul 2021, In: Forensic Science International: Reports. 3, 5 p., 100173.

    Research output: Contribution to journalJournal articleResearchpeer-review

  5. Published

    Clinical signs in a non-Parkinson’s patient from therapeutic doses of pramipexol given in error – and antidotal reversal

    Bøgevig, S., Johansen, Sys Stybe, Kruse, H. & Heogberg, L., 24 May 2019, In: Clinical Toxicology. 57, 6, p. 511 1 p., 190.

    Research output: Contribution to journalConference abstract in journalResearchpeer-review

  6. Published

    Overlevelse efter svær ecstasyforgiftning

    Dahl, M. K., Johansen, Sys Stybe, Ramlau, J. & Jensen, K. A., 3 Nov 2008, In: Ugeskrift for Laeger. 170, 45

    Research output: Contribution to journalJournal articleResearchpeer-review

  7. Published

    Overlevelse efter svær ecstacyforgiftning

    Dahl, M. K., Johansen, Sys Stybe, Ramlau, J. & Jensen, K. A., 2008, In: Ugeskrift for læger. 170, 45, p. 3678-9 2 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  8. Published

    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

    Davidsen, A. B., Mardal, Marie, Johansen, Sys Stybe, Dalsgaard, Petur Weihe & Linnet, Kristian, 2020, In: Drug Testing and Analysis. 12, 7, p. 987-993 8 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  9. Published

    Ketamine analogues: Comparative toxicokinetic in vitro–in vivo extrapolation and quantification of 2-fluorodeschloroketamine in forensic blood and hair samples

    Davidsen, A. B., Mardal, Marie, Holm, N. B., Andreasen, A. K., Johansen, Sys Stybe, Noble, C., Dalsgaard, Petur Weihe & Linnet, Kristian, 20 Feb 2020, In: Journal of Pharmaceutical and Biomedical Analysis. 180, 113049.

    Research output: Contribution to journalJournal articleResearchpeer-review

  10. Published

    Effects of a single dose of psilocybin on behaviour, brain 5-HT2A receptor occupancy and gene expression in the pig

    Donovan, L. L., Johansen, Jens Vilstrup, Ros, N. F., Jaberi, E., Linnet, Kristian, Johansen, Sys Stybe, Ozenne, Brice Maxime Hugues, Issazadeh-Navikas, Shohreh, Hansen, H. D. & Knudsen, Gitte Moos, 2021, In: European Neuropsychopharmacology. 42, p. 1-11

    Research output: Contribution to journalJournal articleResearchpeer-review

  11. Published

    Bionedbrydning af tjærestoffer i jord og grundvand

    Dyreborg, S., Broholm, K., Johansen, Sys Stybe, Arvin, E. & Licht, D., 1999, In: Vand og Jord. 6, 3, p. 84-91

    Research output: Contribution to journalJournal articleResearchpeer-review

  12. Published

    In vivo imaging of cerebral serotonin transporter and serotonin2A receptor binding in 3,4 - methylenedioxymethamphetamine (MDMA or "Ecstasy") and hallucinogen users

    Erritzøe, D. F., Frøkjær, Vibe Gedsø, Holst, K. K., Christoffersen, M., Johansen, Sys Stybe, Svarer, C., Madsen, J., Rasmussen, P. M., Ramsøy, T., Jernigan, T. L. & Knudsen, Gitte Moos, 2011, In: Archives of General Psychiatry. 68, 6, p. 562-576 15 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  13. Published

    Segmental hair analysis of olanzapine and N-desmethyl-olanzapine in postmortem hair from mentally ill patients by LC–MS/MS

    Günther, K. N., Banner, Jytte, Linnet, Kristian & Johansen, Sys Stybe, 25 Oct 2020, In: Journal of Pharmaceutical and Biomedical Analysis. 190, 9 p., 113510.

    Research output: Contribution to journalJournal articleResearchpeer-review

  14. Published

    Postmortem segmental hair analysis: analysing frequently used antipsychotics in long-term consumers

    Günther, K. N. & Johansen, Sys Stybe, 2021, In: TIAFT Bulletin. 51, 1, p. 19-26

    Research output: Contribution to journalJournal articleResearchpeer-review

  15. Published

    Segmental Analysis of Chlorprothixene and Desmethylchlorprothixene in Postmortem Hair

    Günther, K. N., Johansen, Sys Stybe, Wicktor, P., Banner, Jytte & Linnet, Kristian, 1 Nov 2018, In: Journal of Analytical Toxicology. 42, 9, p. 642-649

    Research output: Contribution to journalJournal articleResearchpeer-review

  16. Published

    Post-mortem quetiapine concentrations in hair segments of psychiatric patients - Correlation between hair concentration, dose and concentration in blood

    Günther, K. N., Johansen, Sys Stybe, Nielsen, Marie Katrine Klose, Wicktor, P., Banner, Jytte & Linnet, Kristian, Apr 2018, In: Forensic Science International. 285, p. 58-64 7 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  17. Published

    Distribution of zopiclone and main metabolites in hair following a single dose

    Hansen, Stine Lund, Johansen, Sys Stybe, Nielsen, Marie Katrine Klose, Nilsson, G. & Kronstrand, R., Jan 2020, In: Forensic Science International. 306, 9 p., 110074.

    Research output: Contribution to journalJournal articleResearchpeer-review

  18. Published
  19. Published

    Prolonged clinical course from suspected verapamil bezoar formation in an intentional massive overdose from verapamil and enalapril.

    Hoegsberg, L., Johansen, Sys Stybe, Petersen, T., Palmqvist, D. & Boegevig, S., 2019, In: Clinical Toxicology. 57, 6, p. 515 1 p., 198.

    Research output: Contribution to journalConference abstract in journalResearchpeer-review

  20. Published

    Screening of Danish traffic cases for synthetic cannabinoids in whole blood by LC-MS/MS

    Holm, N. B., Pineda, R., Andersen, D. W., Rasmussen, Brian Schou, Dalsgaard, Petur Weihe, Hoegberg, L., Johansen, Sys Stybe & Linnet, Kristian, 2013, In: Scandinavian Journal of Forensic Science. 19, 2, p. 31-37 7 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  21. Published
  22. Published

    The significance of sampling time in therapeutic drug monitoring of clozapine

    Jakobsen, M. I., Larsen, J. R., Svensson, C. K., Johansen, Sys Stybe, Linnet, Kristian, Nielsen, J. & Fink-Jensen, Anders, Feb 2017, In: Acta Psychiatrica Scandinavica. 135, 2, p. 159-169 11 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  23. Published

    Amitriptyline accumulation in tissues after coated activated charcoal hemoperfusion—a randomized controlled animal poisoning model

    Jansen, T., Hoegberg, L. C. G., Eriksen, Thomas, Dalhoff, Kim, Belhage, B. & Johansen, Sys Stybe, Oct 2019, In: Naunyn-Schmiedeberg's Archives of Pharmacology. 392, 10, p. 1285–1292

    Research output: Contribution to journalJournal articleResearchpeer-review

  24. Published

    Amitriptyline accumulation in tissues after coated activated charcoal hemoperfusion: a randomized controlled animal poisoning model

    Jansen, T., Hoegberg, L. C. G., Eriksen, Thomas, Dalhoff, Kim, Belhage, B. & Johansen, Sys Stybe, 2018, In: Clinical Toxicology. 56, 6, p. 513-513 133.

    Research output: Contribution to journalConference abstract in journalResearchpeer-review

  25. Published

    Sensitive, automatic method for the determination of diazepam and its five metabolites in human oral fluid by online solid-phase extraction and liquid chromatography with tandem mass spectrometry

    Jiang, F., Rao, Y., Wang, R., Johansen, Sys Stybe, Ni, C., Liang, C., Zheng, S., Ye, H. & Zhang, Y., May 2016, In: Journal of Separation Science. 39, 10, p. 1873-1883 11 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  26. Published

    Gamma-Hydroxybutyrate (GHB) Content in Hair Samples Correlates Negatively with Age in Succinic Semialdehyde Dehydrogenase Deficiency

    Johansen, Sys Stybe, Wang, X., Pedersen, D. S., Pearl, P. L., Roullet, J., Ainslie, G. R., Vogel, K. R. & Gibson, K. M., 2017, JIMD Reports. Springer, Vol. 36. p. 93-98 6 p. (JIMD Reports).

    Research output: Chapter in Book/Report/Conference proceedingBook chapterResearchpeer-review

  27. Published

    Quantitative analysis of cocaine and its metabolites in whole blood and urine by high-performance liquid chromatography coupled with tandem mass spectrometry

    Johansen, Sys Stybe & Bhatia, H. M., 2007, In: Journal of Chromatography B-Analytical Technologies in the Biomedical and Life Sciences. 852, 1-2, p. 338-344 6 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  28. Published

    [Fatal cases of poisoning in eastern Denmark during a five-year period (1998-2002)].

    Johansen, Sys Stybe, Jacobsen, Christina, Müller, Irene Breum, Petersen, H., Simonsen, Kirsten Wiese, Kringsholm, B. & Steentoft, A., Sep 2006, In: Ugeskrift for læger. 168, p. 3326-3331 6 p., 17032599 .

    Research output: Contribution to journalJournal articleResearchpeer-review

  29. Published

    Chiral analysis of methadone and its main metabolite EDDP in postmortem blood by liquid chromatography-mass spectrometry

    Johansen, Sys Stybe & Linnet, Kristian, Sep 2008, In: Journal of Analytical Toxicology. 32, 7, p. 499–504

    Research output: Contribution to journalJournal articleResearchpeer-review

  30. Published

    Three fatal cases of PMA and PMMA poisoning in Denmark.

    Johansen, Sys Stybe, Hansen, A., Müller, Irene Breum, Banner, Jytte & Franzmann, M., 2003, In: Journal of Analytical Toxicology. 27

    Research output: Contribution to journalJournal articleResearchpeer-review

  31. Published

    Analysis of Creosote and Oil in Aqueous Contaminations by SPME

    Johansen, Sys Stybe, 1999, Applications of Solid Phase Microextraction. Letchworth, UK: Royal Society of Chemistry, p. 238-247

    Research output: Chapter in Book/Report/Conference proceedingBook chapterResearch

  32. Published

    A fatal case of amlodipine poisoning

    Johansen, Sys Stybe & Genner, J., 2003, In: Journal of Clinical Forensic Medicine. 10, 3, p. 169-172

    Research output: Contribution to journalJournal articleResearchpeer-review

  33. Published

    Trace Analysis of Hetero Aromatic Compounds (NSO) in Water and Polluted Groundwater by Solid Phase Micro-Extraction (SPME)

    Johansen, Sys Stybe & Pawliszyn, J., 1996, In: Journal of Separation Science. 19, 11, p. 627-632

    Research output: Contribution to journalJournal articleResearchpeer-review

  34. Published

    Detection of the antipsychotic drug quetiapine in the blood, urine and hair samples of the victim of a drug-facilitated sexual assault

    Johansen, Sys Stybe, Jan 2017, In: Forensic Science International. 270, p. e12-e15 4 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  35. Published

    Intoxications detected by hair analysis of bleached and non-bleached hair

    Johansen, Sys Stybe & Windberg, C. N., Jun 2014, In: Toxicologie Analytique et Clinique. 26, 2, p. S7 1 p., O6.

    Research output: Contribution to journalConference abstract in journalResearchpeer-review

  36. Published

    Simultaneous determination of gamma-Hydroxybutyrate (GHB) and its analogues (GBL, 1.4-BD, GVL) in whole blood and urine by liquid chromatography coupled to tandem mass spectrometry

    Johansen, Sys Stybe & Windberg, C. N., 2011, In: Journal of Analytical Toxicology. 35, 1, p. 8-14 7 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  37. Published

    Heteroaromatic compounds and their biodegradation products in creosote-contaminated groundwater

    Johansen, Sys Stybe, 1996, 1 ed. Lyngby. 120 p.

    Research output: Book/ReportPh.D. thesisResearch

  38. Published

    Isomers of fluoroamphetamines detected in forensic cases in Denmark

    Johansen, Sys Stybe & Hansen, T. M., 28 Jan 2012, In: International Journal of Legal Medicine. 126, p. 541-547 7 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  39. Published

    Fatal intoxications among non-drug addicts in Eastern Denmark over a 5-year period (2008–2012)

    Johansen, Sys Stybe, Jacobsen, Christina & Linnet, Kristian, 4 Dec 2018, In: Research and Reports in Forensic Medical Science. 8, p. 9—16

    Research output: Contribution to journalJournal articleResearchpeer-review

  40. Published

    Liquid chromatography-tandem mass spectrometry determination of loperamide and its main metabolite desmethylloperamide in biological specimens and application to forensic cases

    Johansen, Sys Stybe & Lundsby Jensen, A. J., 2004, In: Journal of Chromatography - B. 811, 1, p. 31-36

    Research output: Contribution to journalJournal articleResearchpeer-review

  41. Published

    Trace analysis of Hetero Aromatic Compounds in Water by Solid Phase Microextraction.

    Johansen, Sys Stybe, 1996, Trace analysis of Hetero Aromatic Compounds in Water by Solid Phase Microextraction.. Vol. 1. p. 663-673 11 p.

    Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

  42. Published

    Drug-facilitated sexual assaults (DFSA) in Denmark

    Johansen, Sys Stybe, Hilden, M., Nielsen, H., Stadsgaard, K. & Hansen, S. H., 2006, Texas, USA: SOFT 2006, p. 65.

    Research output: Working paper

  43. Published

    Temporal patterns of tramadol in hair after a single dose

    Johansen, Sys Stybe, Dang, L. T. V. L., Nielsen, Marie Katrine Klose, Haage, P., Kugelberg, F. C. & Kronstrand, R., Nov 2020, In: Forensic Science International. 316, 9 p., 110546.

    Research output: Contribution to journalJournal articleResearchpeer-review

  44. Published

    Fatal intoxications among non-drug addicts in Eastern Denmark over a five-year period (2003-2007)

    Johansen, Sys Stybe, 2012, In: Research and Reports in Forensic Medical Science. 2, p. 1-7 7 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  45. Published

    Quantification of Methadone in forensic samples by LC-MS/MS

    Johansen, Sys Stybe & Jensen, J. L., 2001, Ikke angivet. TIAFT, p. 204

    Research output: Chapter in Book/Report/Conference proceedingConference abstract in proceedingsResearch

  46. Published

    NSO-forbindelser i grundvand ved tjæreforureninger- et faktum

    Johansen, Sys Stybe, 1996, In: INFO-NYT. 11, p. 7-11

    Research output: Contribution to journalJournal articleResearch

  47. Published
  48. Published

    Degradation pathways of quinolines in a biofilm system under denitrifying conditions

    Johansen, Sys Stybe, Arvin, E., Mosbæk, H. & Hansen, A. B., 1997, In: Environmental Toxicology and Chemistry. 9, 16, p. 1821-1828

    Research output: Contribution to journalJournal articleResearchpeer-review

  49. Published

    Heteroaromatic compounds and their biodegradation products on creosote-contaminated groundwater

    Johansen, Sys Stybe, Arvin, E., Mosbæk, H. & Hansen, A. B., 1998, In: Toxicological and Environmental Chemistry. 66, p. 195-228

    Research output: Contribution to journalJournal articleResearchpeer-review

  50. Published

    Ecstasy i Danmark

    Johansen, Sys Stybe & Müller, I. B., 2001, In: Dansk Kemi. 82, 11, p. 12-13

    Research output: Contribution to journalJournal articleResearchpeer-review

  51. Published

    Determination of Gamma-Hydroxybutyrate (GHB) by Headspace-GC/MS (FID) in Forensic Samples

    Johansen, Sys Stybe & Felby, S., 2000, In: Problems of Forensic Sciences, 37th TIAFT Triennial Meeting. 43, p. 126-130

    Research output: Contribution to journalConference articleResearchpeer-review

  52. Published

    Ecstasy (MDMA) m.v.-et fænomen i retsmedicinen?

    Johansen, Sys Stybe & Müller, I. B., 1999, In: Scandinavian Journal of Forensic Science. 5, 4, p. 77

    Research output: Contribution to journalJournal articleResearchpeer-review

  53. Published

    A drug rape case involving triazolam detected in hair and urine

    Johansen, Sys Stybe, 2012, In: International Journal of Legal Medicine. 126, 637-643

    Research output: Contribution to journalJournal articleResearchpeer-review

  54. Published

    Determination of amphetamine, methamphetamine, MDA and MDMA in human hair by GC-EI-MS after derivatization with perfluorooctanoyl chloride

    Johansen, Sys Stybe & Jornil, J., 2009, In: Scandinavian Journal of Clinical & Laboratory Investigation. 69, 1, p. 113-20 7 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  55. Published

    Distribution patterns, dermatomal anesthesia, and Ropivacaine serum concentrations after bilateral dualtransversus abdominis plane block

    Johansen, Sys Stybe, 2012, In: Regional Anesthesia and Pain Medicine. 37, 3, p. 294-301

    Research output: Contribution to journalJournal articleResearchpeer-review

  56. Published

    Metabolic pathways of quinoline, indole and their methylated analogs by Desulfobacterium indolicum (DSM 3383)

    Johansen, Sys Stybe, Licht, D., Arvin, E., Mosbæk, H. & Hansen, A. B., 1997, In: Applied Microbiology and Biotechnology. 47, 3, p. 292-300

    Research output: Contribution to journalJournal articleResearchpeer-review

  57. Published

    Liquid chromatography-tandem mass spectrometry determination of LSD, ISO-LSD, and the main metabolite 2-oxo-3-hydroxy-LSD in forensic samples and application in a forensic case

    Johansen, Sys Stybe & Lundsby Jensen, A. J., 2005, In: Journal of Chromatography - B. 825, 1, p. 21-28

    Research output: Contribution to journalJournal articleResearchpeer-review

  58. Published

    Three Fatal Cases of PMA and PMMA Poisoning in Denmark

    Johansen, Sys Stybe, Hansen, A. C., Müller, I. B., Lundemose, J. B. & Franzmann, M., 2003, In: Journal of Analytical Toxicology. 27, 4, p. 253-256

    Research output: Contribution to journalJournal articleResearchpeer-review

  59. Published

    Identification of Heteroaromatic and other Organic Compounds in Ground Water at Creosote-Contaminated Sites in Denmark

    Johansen, Sys Stybe, Hansen, A. B., Mosbæk, H. & Arvin, E., 1997, In: Ground Water Monitoring and Remediation. 17, 2, p. 106-115

    Research output: Contribution to journalJournal articleResearchpeer-review

  60. Published

    Chiral analysis of methadone and its main metabolite EDDP in postmortem blood by liquid chromatography-mass spectrometry

    Johansen, Sys Stybe & Linnet, Kristian, 2008, In: Journal of Analytical Toxicology. 32, 7, p. 499-504 5 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  61. Published

    Ecstasy & Designer Amphetamines Findings in Drivers and Post-Mortem Cases in Denmark

    Johansen, Sys Stybe, 2002, Proceedings at ICADTS 2002. ICADTS

    Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

  62. Published

    Transformation of indole and quinoline by Desulfobacterium indolicum (DSM 3383)

    Johansen, Sys Stybe, Licht, D., Arvin, E. & Ahring, B. K., 1997, In: Applied Microbiology and Biotechnology. 47, 2, p. 167-172

    Research output: Contribution to journalJournal articleResearchpeer-review

  63. Published

    Severe methylphenidate intoxication-charcoal hemoperfusion as an aid in treating the patient

    Johansen, Sys Stybe, 2013, In: Clinical Toxicology. 3, 1, 2 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  64. Published

    A suspected facilitated crime (DFC) investigated by hair analysis: SOFT, Boston, MA, USA

    Johansen, Sys Stybe & Nielsen, Marie Katrine Klose, 4 Jul 2012. 1 p.

    Research output: Contribution to conferenceConference abstract for conferenceResearchpeer-review

  65. Published

    Method development for trace analysis of heteroaromatic compounds in contaminated groundwater

    Johansen, Sys Stybe, Hansen, A. B., Mosbæk, H. & Arvin, E., 1996, In: Journal of Chromatography A. 738, 2, p. 295-304

    Research output: Contribution to journalJournal articleResearchpeer-review

  66. Published

    Enantioselective analysis of citalopram and demethylcitalopram in human whole blood by chiral LC-MS/MS and application in forensic cases

    Johansen, Sys Stybe, Oct 2017, In: Drug Testing and Analysis. 9, 10, p. 1549–1554

    Research output: Contribution to journalJournal articleResearchpeer-review

  67. Published

    Three fatal cases of PMA and PMMA poisoning in Denmark

    Johansen, Sys Stybe, Hansen, A. C., Müller, I. B., Banner Lundemose, J. & Franzmann, M., 2002, In: Scandinavian Journal of Forensic Science. 2/3, p. 38-40

    Research output: Contribution to journalJournal articleResearchpeer-review

  68. Published

    A fatal overdose of the ergot derivative cabergoline

    Johansen, Sys Stybe & Karkov, J. N. D., 2004, In: Forensic Science International. 146, 1, p. 47-51

    Research output: Contribution to journalJournal articleResearchpeer-review

  69. Published

    Stability of γ-Hydroxybutyrate in Blood Samples from Impaired Drivers after Storage at 4°C and Comparison of GC–FID–GBL and LC–MS-MS Methods of Analysis

    Jones, A. W., Gladh, S., Windberg, C. N. & Johansen, Sys Stybe, Feb 2015, In: Journal of Analytical Toxicology. 39, 4, p. 294-299 6 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  70. Published

    Håret sladrer

    Jornil, J. & Johansen, Sys Stybe, 2005, In: Dansk Politi. 11, p. 22-23

    Research output: Contribution to journalJournal articleResearch

  71. Published

    Postmortem Femoral Blood Concentrations of Risperidone

    Linnet, Kristian & Johansen, Sys Stybe, Jan 2014, In: Journal of Analytical Toxicology. 38, 1, p. 57-60 4 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  72. Published

    Postmortem femoral blood concentrations of amlodipine

    Linnet, Kristian & Johansen, Sys Stybe, Jan 2011, In: Journal of Analytical Toxicology. 35, p. 227-231 5 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  73. Published

    Dominance of pre-analytical over analytical variation for measurement of methadone and its main metabolite in postmortem femoral blood

    Linnet, Kristian, Johansen, Sys Stybe, Buchard, Anders, Munkholm, Julie & Morling, Niels, 2008, In: Forensic Science International. 179, 1, p. 78-82 4 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  74. Published

    Psilocybin-induced reduction in chronic cluster headache attack frequency correlates with changes in hypothalamic functional connectivity

    Madsen, M. K., Petersen, A. S., Stenbæk, Dea Siggaard, Sorensen, I. M., Schionning, H., Fjeld, T., Nykjaer, C., Larsen, S. M. U., Grzywacz, M., Mathiesen, T., Klausen, I., Hansen, O. O., Brendstrup-Brix, K., Linnet, Kristian, Johansen, Sys Stybe, Fisher, P. M., Jensen, Rasmus Herlo Beenfeldt, Knudsen, Gitte Moos & Madsen, M. K., 2022, medRxiv, 17 p.

    Research output: Working paperPreprint

  75. Published

    Psilocybin occupancy of brain serotonin 2A receptors correlates with psilocin levels and subjective experience: a [11C]Cimbi-36 PET study in humans

    Madsen, M. K., Burmester, D., Stenbaek, D. S., Kristiansen, S., Dyssegaard, A., Lehel, S., Linnet, Kristian, Johansen, Sys Stybe, Svarer, C., Ozenne, B., Erritzoe, D., Fisher, P. M. & Knudsen, Gitte Moos, 2019, In: European Neuropsychopharmacology. 29, Suppl. 1, p. S304-S305

    Research output: Contribution to journalConference abstract in journalResearchpeer-review

  76. Published

    Psilocybin-induced changes in brain network integrity and segregation correlate with plasma psilocin level and psychedelic experience

    Madsen, M. K., Stenbæk, Dea Siggaard, Arvidsson, A., Armand, Sophia, Marstrand-Joergensen, M. R., Johansen, Sys Stybe, Linnet, Kristian, Ozenne, Brice Maxime Hugues, Knudsen, Gitte Moos & Fisher, P. M., 2021, In: European Neuropsychopharmacology. 50, p. 121-132 12 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  77. Published

    CCH attack frequency reduction after psilocybin correlates with hypothalamic functional connectivity

    Madsen, M. K., Petersen, A. S., Stenbæk, Dea Siggaard, Sørensen, I. M., Schiønning, H., Fjeld, T., Nykjær, C. H., Larsen, S. M. U., Grzywacz, M., Mathiesen, T., Klausen, I. L., Overgaard-Hansen, O., Brendstrup-Brix, K., Linnet, Kristian, Johansen, Sys Stybe, Fisher, P. M., Jensen, Rigmor Højland & Knudsen, Gitte Moos, 2024, In: Headache. 64, 1, p. 55-67

    Research output: Contribution to journalJournal articleResearchpeer-review

  78. Published

    Psychedelic effects of psilocybin correlate with serotonin 2A receptor occupancy and plasma psilocin levels

    Madsen, M. K., Fisher, P. M., Burmester, D., Dyssegaard, A., Stenbæk, D. S., Kristiansen, S., Johansen, Sys Stybe, Lehel, S., Linnet, Kristian, Svarer, C., Erritzoe, D., Ozenne, Brice Maxime Hugues & Knudsen, Gitte Moos, 2019, In: Neuropsychopharmacology. 44, p. 1328-1334

    Research output: Contribution to journalJournal articleResearchpeer-review

  79. Published

    Postmortem analysis of three methoxyacetylfentanyl-related deaths in Denmark and in vitro metabolite profiling in pooled human hepatocytes

    Mardal, Marie, Johansen, Sys Stybe, Davidsen, A. B., Telving, R., Jornil, J. R., Dalsgaard, Petur Weihe, Hasselstrøm, J. B., Øiestad, Å. M., Linnet, Kristian & Andreasen, M. F., Sep 2018, In: Forensic Science International. 290, p. 310-317

    Research output: Contribution to journalJournal articleResearchpeer-review

  80. Published

    Metabolite Profiling of Methoxyacetylfentanyl in Pooled Human Hepatocytes and Quantitation in Biological Samples from a Postmortem Forensic Case

    Mardal, Marie, Johansen, Sys Stybe, Davidsen, A. B., Dalsgaard, Petur Weihe & Linnet, Kristian, 28 Aug 2018.

    Research output: Contribution to conferenceConference abstract for conferenceResearchpeer-review

  81. Published
  82. Published

    Determination of GHB and GHB-β-O-glucuronide in hair of three narcoleptic patients-Comparison between single and chronic GHB exposure

    Mehling, L., Wang, X., Johansen, Sys Stybe, Spottke, A., Heidbreder, A., Young, P., Madea, B. & Hess, C., Sep 2017, In: Forensic Science International. 278, p. e8-e13

    Research output: Contribution to journalJournal articleResearchpeer-review

  83. Published

    Drug facilitated sexual assault with lethal outcome: GHB intoxication in a six-year-old girl

    Mehling, L., Johansen, Sys Stybe, Wang, X., Doberentz, E., Madea, B. & Hess, C., Feb 2016, In: Forensic Science International. 259, p. e25-e31

    Research output: Contribution to journalJournal articleResearchpeer-review

  84. Published

    Several possible toxicological and genetic tools for the extension of the detection window after GHB intake

    Mehling, L., Piper, T., Lott, S., Wang, X., Dib, J., Pedersen, D. S., Heidbreder, A., Young, P., Madea, B., Johansen, Sys Stybe, Courts, C., Thevis, M. & Hess, C., 2017, In: Toxichem Krimtech. 84, 3, p. 184-190 7 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  85. Published

    Detection of scopolamine in urine and hair in a drug-facilitated sexual assault case

    Melchior, S. E., Nielsen, Marie Katrine Klose, Oropeza, A. R., Banner, Jytte & Johansen, Sys Stybe, 2023, p. P51. 1 p.

    Research output: Contribution to conferencePosterResearch

  86. Published

    Detection of scopolamine in urine and hair in a drug-facilitated sexual assault case

    Melchior, S. E., Nielsen, Marie Katrine Klose, Oropeza, A. R., Banner, Jytte & Johansen, Sys Stybe, 2023, TIAFT 2023: 60th International Association of Forensic Toxicologists Meeting: Abstract book. p. 108-108 1 p.

    Research output: Chapter in Book/Report/Conference proceedingConference abstract in proceedingsResearchpeer-review

  87. Published

    Detection of scopolamine in urine and hair in a drug-facilitated sexual assault

    Melchior, S. E., Nielsen, Marie Katrine Klose, Oropeza, A. R., Banner, Jytte & Johansen, Sys Stybe, 2023, In: Forensic Science International. 347, 5 p., 111678.

    Research output: Contribution to journalJournal articleResearchpeer-review

  88. Published
  89. Published

    Validation of a method for the targeted analysis of 96 drugs in hair by UPLC-MS/MS

    Montesano, C., Johansen, Sys Stybe & Nielsen, Marie Katrine Klose, 25 Jan 2014, In: Journal of Pharmaceutical and Biomedical Analysis. 88, p. 295-306 12 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  90. Published

    Fatal overdose of the herbicide bentazone

    Müller, I. B., Petersen, H. W., Johansen, Sys Stybe & Theilade, P., 2003, In: Forensic Science International. 135, 3, p. 235-236

    Research output: Contribution to journalJournal articleResearchpeer-review

  91. Published

    Postmortem Brain-Blood Ratios of Amphetamine, Cocaine, Ephedrine, MDMA and Methylphenidate

    Nedahl, Michael, Johansen, Sys Stybe & Linnet, Kristian, Jun 2019, In: Journal of Analytical Toxicology. 43, 5, p. 378–384

    Research output: Contribution to journalJournal articleResearchpeer-review

  92. Published

    Reference Brain/Blood Concentrations of Citalopram, Duloxetine, Mirtazapine and Sertraline

    Nedahl, Michael, Johansen, Sys Stybe & Linnet, Kristian, 1 Apr 2018, In: Journal of Analytical Toxicology. 42, 3, p. 149-156

    Research output: Contribution to journalJournal articleResearchpeer-review

  93. Published

    Postmortem Brain-Blood Ratios of Codeine, Fentanyl, Oxycodone and Tramadol

    Nedahl, Michael, Johansen, Sys Stybe & Linnet, Kristian, Jan 2021, In: Journal of Analytical Toxicology. 45, 1, p. 53–59 7 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  94. Published

    Brain-blood ratio of morphine in heroin and morphine autopsy cases

    Nedahl, Michael, Johansen, Sys Stybe & Linnet, Kristian, 1 Aug 2019, In: Forensic Science International. 301, p. 388-393

    Research output: Contribution to journalJournal articleResearchpeer-review

  95. Published

    Reference Brain and Blood Concentrations of Olanzapine in Postmortem Cases

    Nedahl, Michael, Johansen, Sys Stybe & Linnet, Kristian, 1 Nov 2018, In: Journal of Analytical Toxicology. 42, 9, p. 650-654 5 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  96. Published

    Ultrasound-guided bilateral dual transversus abdominis plane block

    Børglum, Jens, Jansen, T., Høgberg, L. C. G., Johansen, Sys Stybe, Christensen, A. F. & Jensen, K., Sep 2011, In: Regional Anesthesia and Pain Medicine. 36, 7, p. E11 1 p.

    Research output: Contribution to journalConference abstract in journalResearchpeer-review

  97. Published

    Evaluation of metabolite/drug ratios in blood and urine as a tool for confirmation of a reduced tolerance in methadone-related deaths in Denmark

    Nielsen, Marie Katrine Klose, Johansen, Sys Stybe & Linnet, Kristian, 1 Dec 2013, In: Drug and Alcohol Dependence. 133, 2, p. 447-51 5 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  98. Published

    Simultaneous screening and quantification of 52 common pharmaceuticals and drugs of abuse in hair using UPLC-TOF-MS

    Nielsen, Marie Katrine Klose, Johansen, Sys Stybe, Dalsgaard, Petur Weihe & Linnet, Kristian, 2010, In: Forensic Science International. 196, 1-3, p. 85-92 7 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  99. Published

    Determination of olanzapine in whole blood using simple protein precipitation and liquid chromatography-tandem mass spectrometry

    Nielsen, Marie Katrine Klose & Johansen, Sys Stybe, 2009, In: Journal of Analytical Toxicology. 33, 4, p. 212-7 5 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  100. Published

    Driving under the Influence of Amphetamine: Analytical Evaluation of Illegal or Prescription Drug Intake Using Chiral UHPLC-MS/MS

    Nielsen, Marie Katrine Klose, Andersen, N. Z., Rasmussen, Brian Schou & Johansen, Sys Stybe, 2023, In: Journal of Analytical Toxicology. 47, 3, p. 280-286

    Research output: Contribution to journalJournal articleResearchpeer-review

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