Sys Stybe Johansen

Sys Stybe Johansen

Associate Professor

ORCID: 0000-0002-9555-5134

Publication year:
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1 - 25 out of 150Page size: 25
  1. 2024
  2. Accepted/In press

    Automated enzymatic hydrolysis of urine samples for improved systematic toxicological analysis of drug-facilitated sexual assault cases

    Skov, Kathrine Østerballe, Johansen, Sys Stybe, Linnet, Kristian & Nielsen, Marie Katrine Klose, 2024, (Accepted/In press) In: Drug Testing and Analysis.

    Research output: Contribution to journal › Journal article › Research › peer-review

  3. 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 journal › Journal article › Research › peer-review

  4. Published

    Exploring Enzymatic Hydrolysis of Urine Samples for Investigation of Drugs Associated with Drug-Facilitated Sexual Assault

    Skov, Kathrine Østerballe, Johansen, Sys Stybe, Linnet, Kristian, Rasmussen, Brian Schou & Nielsen, Marie Katrine Klose, 2024, In: Pharmaceuticals. 17, 1, 11 p., 13.

    Research output: Contribution to journal › Journal article › Research › peer-review

  5. 2023
  6. Published

    A Systematic Toxicological Analysis Strategy for Drug: Facilitated Sexual Assault Cases

    Skov, Kathrine Østerballe, Johansen, Sys Stybe, Linnet, Kristian & Nielsen, Marie Katrine Klose, May 2023, 7th Annual Meeting of the Nordic Association of Forensic Toxicologists (NAFT): Abstract book. Copenhagen: Nordic Association of Forensic Toxicologists (NAFT), 1 p.

    Research output: Chapter in Book/Report/Conference proceeding › Conference abstract in proceedings › Research › peer-review

  7. 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 journal › Journal article › Research › peer-review

  8. 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 proceeding › Conference abstract in proceedings › Research › peer-review

  9. 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 conference › Poster › Research

  10. 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 journal › Journal article › Research › peer-review

  11. Published

    Finding Forensic Evidence: Toxicological Results from Drug-Facilitated Sexual Assault Cases in Eastern Denmark from 2015–2022

    Skov, Kathrine Østerballe, Johansen, Sys Stybe, Linnet, Kristian & Nielsen, Marie Katrine Klose, 2023. 1 p.

    Research output: Contribution to conference › Conference abstract for conference › Research › peer-review

  12. Published

    Reference concentrations and distribution of 7-aminoclonazepam in hair following a single dose of clonazepam

    Nielsen, Marie Katrine Klose, Johansen, Sys Stybe & Kronstrand, R., 2023. 1 p.

    Research output: Contribution to conference › Poster › Research › peer-review

  13. Published

    Reference concentrations and distribution of 7-aminoclonazepam in hair following a single dose of clonazepam

    Nielsen, Marie Katrine Klose, Johansen, Sys Stybe & Kronstrand, R., 2023. 2 p.

    Research output: Contribution to conference › Conference abstract for conference › Research › peer-review

  14. Published

    Toxicological investigations in drug-facilitated sexual assault cases

    Skov, Kathrine Østerballe, Nielsen, Marie Katrine Klose, Johansen, Sys Stybe & Linnet, Kristian, 2023, Copenhagen: University of Copenhagen. 77 p.

    Research output: Book/Report › Ph.D. thesis › Research

  15. Published

    Uncovering forensic evidence of drug-facilitated sexual assault: Toxicological findings from Eastern Denmark from 2015–2022

    Skov, Kathrine Østerballe, Johansen, Sys Stybe, Linnet, Kristian & Nielsen, Marie Katrine Klose, 2023, In: Legal Medicine. 65, 10 p., 102325.

    Research output: Contribution to journal › Journal article › Research › peer-review

  16. Published

    What’s in the sample? Toxicological findings from drug-facilitated sexual assault cases in eastern Denmark from 2015–2022

    Skov, Kathrine Østerballe, Johansen, Sys Stybe, Linnet, Kristian & Nielsen, Marie Katrine Klose, 2023. 1 p.

    Research output: Contribution to conference › Poster › Research

  17. Published

    What’s in the sample? Toxicological findings from drug-facilitated sexual assault cases in eastern Denmark from 2015–2022

    Skov, Kathrine Østerballe, Johansen, Sys Stybe, Linnet, Kristian & Nielsen, Marie Katrine Klose, 2023, 60th International Association of Forensic Toxicologists Meeting (TIAFT): Abstract book. Rome: TIAFT, p. 95-95

    Research output: Chapter in Book/Report/Conference proceeding › Conference abstract in proceedings › Research › peer-review

  18. 2022
  19. Published

    A review on the forensic toxicology of global drug-facilitated sexual assaults

    Skov, Kathrine Østerballe, Johansen, Sys Stybe, Linnet, Kristian & Nielsen, Marie Katrine Klose, 2022, In: European Review for Medical and Pharmacological Sciences. 26, 1, p. 183-197

    Research output: Contribution to journal › Review › Research › peer-review

  20. Published

    Concentrations of citalopram and escitalopram in postmortem hair segments

    Rygaard, K., Nielsen, Marie Katrine Klose, Linnet, Kristian, Banner, Jytte & Johansen, Sys Stybe, 2022, In: Forensic Science International. 336, 8 p., 111349.

    Research output: Contribution to journal › Journal article › Research › peer-review

  21. Published

    Improving analysis of urine samples from drug-facilitated sexual assault cases

    Skov, Kathrine Østerballe, Johansen, Sys Stybe, Linnet, Kristian & Nielsen, Marie Katrine Klose, 2022, In: Toxicologie Analytique et Clinique. 34, 3 Suppl, p. S168-S169 P164.

    Research output: Contribution to journal › Conference abstract in journal › Research › peer-review

  22. Published

    Postmortem hair, a tool for time resolved analysis of antipsychotics and antidepressants

    Svane, K. R. & Johansen, Sys Stybe, 2022, University of Copenhagen. 48 p.

    Research output: Book/Report › Ph.D. thesis › Research

  23. 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 paper › Preprint › Research

  24. 2021
  25. 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 journal › Journal article › Research › peer-review

  26. 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 journal › Journal article › Research › peer-review

  27. Published

    A Systematic Review of Metabolite-to-Drug Ratios of Pharmaceuticals in Hair for Forensic Investigations

    Rygaard, K., Linnet, Kristian & Johansen, Sys Stybe, 2021, In: Metabolites. 11, 10, 28 p., 686.

    Research output: Contribution to journal › Review › Research › peer-review

  28. 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 journal › Journal article › Research › peer-review

  29. 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 journal › Journal article › Research › peer-review

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