Sys Stybe Johansen

Sys Stybe Johansen

Associate Professor

ORCID: 0000-0002-9555-5134

Publication year:
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26 - 50 out of 150Page size: 25
  1. 2021
  2. 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 journal › Journal article › Research › peer-review

  3. 2020
  4. Published

    Concentrations of aripiprazole and dehydroaripiprazole in hair segments from deceased individuals with mental disorders

    Rygaard, K., Linnet, Kristian, Banner, Jytte & Johansen, Sys Stybe, Dec 2020, In: Forensic Science International. 317, 8 p., 110523.

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

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

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

  7. Published

    Internal quality control samples for hair testing

    Nielsen, Marie Katrine Klose & Johansen, Sys Stybe, 5 Sep 2020, In: Journal of Pharmaceutical and Biomedical Analysis. 188, 7 p., 113459.

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

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

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

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

  11. 2019
  12. Published

    Hair testing for cortisol by UPLC-MS/MS in a family: External cross-contamination from use of cortisol cream

    Wang, X., Busch, Johannes Rødbro, Banner, Jytte, Linnet, Kristian & Johansen, Sys Stybe, Dec 2019, In: Forensic Science International. 305, 7 p., 109968.

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

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

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

  15. Published

    Identification of phenobarbital and other barbiturates in forensic drug screening using positive electrospray ionization liquid chromatography−high resolution mass spectrometry

    Høj, L. J., Mollerup, Christian Brinch, Rasmussen, Brian Schou, Johansen, Sys Stybe, Linnet, Kristian & Dalsgaard, Petur Weihe, Aug 2019, In: Drug Testing and Analysis. 11, 8, p. 1258-1263

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

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

  17. 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 journal › Conference abstract in journal › Research › peer-review

  18. Published

    Retrospective analysis for valproate screening targets with liquid chromatography-high resolution mass spectrometry with positive electrospray ionization: An omics-based approach

    Mollerup, Christian Brinch, Rasmussen, Brian Schou, Johansen, Sys Stybe, Mardal, Marie, Linnet, Kristian & Dalsgaard, Petur Weihe, May 2019, In: Drug Testing and Analysis. 11, 5, p. 730-738

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

  19. Published

    Segmental Hair Analysis-Interpretation of the Time of Drug Intake in Two Patients Undergoing Drug Treatment

    Wang, X., Johansen, Sys Stybe, Nielsen, Marie Katrine Klose & Linnet, Kristian, May 2019, In: Journal of Forensic Sciences. 64, 3, p. 950-955

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

  20. 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 journal › Conference abstract in journal › Research › peer-review

  21. 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 journal › Conference abstract in journal › Research › peer-review

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

  23. 2018
  24. 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 journal › Journal article › Research › peer-review

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

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

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

  28. 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 conference › Conference abstract for conference › Research › peer-review

  29. Published

    Validation of a fully automated solid‐phase extraction and ultra‐high‐performance liquid chromatography–tandem mass spectrometry method for quantification of 30 pharmaceuticals and metabolites in post‐mortem blood and brain samples

    Nielsen, Marie Katrine Klose, Nedahl, Michael, Johansen, Sys Stybe & Linnet, Kristian, Jul 2018, In: Drug Testing and Analysis. 10, 7, p. 1147-1157

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

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