Kristian Linnet

Kristian Linnet

Professor

ORCID: 0000-0001-6974-5535

Publication year:
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  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. Published

    Toxicology Screening in Sports-Related Sudden Cardiac Death: A Multinational Observational Study

    Hansen, Carl Johann, Svane, Jesper, Palsøe, Marie Kroman, Isbister, J. C., Paratz, E., Molina, P., Morentin, B., Winkel, B. G., La Gerche, A., Linnet, Kristian, Banner, Jytte, Lucena, J., Semsarian, C. & Tfelt-Hansen, Jacob, 2024, In: JACC: Clinical Electrophysiology. 10, 3, p. 515-523

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

  6. 2023
  7. 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

  8. Published

    Interpretation of cerebrospinal morphine concentrations in forensic postmortem cases

    Linnet, Kristian, 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

  9. Published

    Analytical challenges with measurement of endocannabinoids in human plasma

    Jørgensen, Christian Falck, Rasmussen, Brian Schou, Linnet, Kristian & Thomsen, Ragnar, 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

  10. Published

    Evidence of 11-Hydroxy-hexahydrocannabinol and 11-Nor-9-carboxy-hexahydrocannabinol as Novel Human Metabolites of Δ9-Tetrahydrocannabinol

    Jørgensen, Christian Falck, Rasmussen, Brian Schou, Linnet, Kristian & Thomsen, Ragnar, 2023, In: Metabolites. 13, 12, 13 p., 1169.

    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

    Improvement of screening methods in systematic toxicological analysis using highresolution mass spectrometry

    Pan, Meiru, Linnet, Kristian & Dalsgaard, Petur Weihe, 2023, Copenhagen: University of Copenhagen. 45 p.

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

  13. Published

    Overview of systematic toxicological analysis strategies and their coverage of substances in forensic toxicology

    Rygaard, K., Pan, Meiru, Nielsen, Marie Katrine Klose, Dalsgaard, Petur Weihe, Rasmussen, B. S. & Linnet, Kristian, 2023, In: Analytical Science Advances. 4, 3-4, p. 96-103

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

  14. Published

    Scalable Analysis of Untargeted LC-HRMS Data by Means of SQL Database Archiving

    Mardal, Marie, Dalsgaard, Petur Weihe, Rasmussen, Brian Schou, Linnet, Kristian & Mollerup, Christian Brinch, 2023, In: Analytical Chemistry. 95, 10, p. 4592–4596

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

  15. Published

    Statistical Methodologies in Laboratory Medicine: Analytical and Clinical Evaluation of Laboratory Tests

    Linnet, Kristian, Moons, K. G. M. & Boyd, J. C., 2023, Tietz Textbook of Laboratory Medicine. Rifai, N. (ed.). 7 ed. US: Elsevier, p. 10-59 49 p.

    Research output: Chapter in Book/Report/Conference proceeding › Book chapter › Education › peer-review

  16. Published

    Suitability of cardiac blood, brain tissue, and muscle tissue as alternative matrices for toxicological evaluation in postmortem cases

    Hansen, Stine Lund, Nielsen, Marie Katrine Klose, Linnet, Kristian & Rasmussen, Brian Schou, 2023, In: Drug Testing and Analysis. 15, 5, p. 529-538

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

  17. Published

    The peripheral endocannabinoid system and its association with biomarkers of inflammation in untreated patients with multiple sclerosis

    Gustavsen, S., Olsson, A., Oturai, A. B., Linnet, Kristian, Thomsen, Ragnar, Rasmussen, Brian Schou, Jørgensen, Christian Falck, Langkilde, Annika Reynberg, Sørensen, Per Soelberg, Sellebjerg, Finn Thorup & Søndergaard, H. B., 2023, In: European Journal of Neurology. 30, 10, p. 3212-3220

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

  18. 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

  19. 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

  20. 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

  21. 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

  22. 2022
  23. Published

    A New Strategy for Efficient Retrospective Data Analyses for Designer Benzodiazepines in Large LC-HRMS Datasets

    Pan, Meiru, Rasmussen, B. S., Dalsgaard, Petur Weihe, Mollerup, Christian Brinch, Nielsen, Marie Katrine Klose, Nedahl, Michael, Linnet, Kristian & Mardal, Marie, 2022, In: Frontiers in Chemistry. 10, 11 p., 868532.

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

  24. 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

  25. Published

    Analytical reproducibility evaluated from duplicate measurements of authentic ante- and postmortem blood samples by LC–MS/MS compared with long-term imprecision estimates from quality control samples

    Hansen, Stine Lund, Linnet, Kristian & Rasmussen, Brian Schou, 2022, In: Forensic Science International. 339, 6 p., 111415.

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

  26. Published

    Cocaine profiling method retrospectively developed with nontargeted discovery of markers using liquid chromatography with time-of-flight mass spectrometry data

    Carby-Robinson, Daniel, Dalsgaard, Petur Weihe, Mollerup, Christian Brinch, Linnet, Kristian & Rasmussen, Brian Schou, 2022, In: Drug Testing and Analysis. 14, 3, p. 462-473

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

  27. Published

    Comparison of Comprehensive Screening Results in Postmortem Blood and Brain Tissue by UHPLC–QTOF-MS

    Hansen, Stine Lund, Dalsgaard, Petur Weihe, Linnet, Kristian & Rasmussen, Brian Schou, 2022, In: Journal of Analytical Toxicology. 46, 9, p. 1053–1058

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

  28. 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

  29. 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

  30. Published

    Metabolomics-driven determination of targets for salicylic acid and ibuprofen in positive electrospray ionization using LC-HRMS

    Pasin, Daniel Joel, Pan, Meiru, Rasmussen, Brian Schou, Linnet, Kristian, Dalsgaard, Petur Weihe & Mollerup, Christian Brinch, 2022, In: Drug Testing and Analysis. 14, 4, p. 747-756

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

  31. Published

    Postmortem investigation of more than 100 consecutive autopsy cases in femoral blood, cardiac blood, brain tissue and muscle tissue

    Hansen, Stine Lund, Nielsen, Marie Katrine Klose, Linnet, Kristian & Rasmussen, Brian Schou, 2022, In: Toxicologie Analytique et Clinique. 34, 3 Suppl, p. 117-118 P63.

    Research output: Contribution to journal › Conference abstract in journal › Research

  32. 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

  33. Published

    The incidence of psychoactive substances and alcohol among impaired drivers in Denmark in 2015–2019

    Simonsen, Kirsten Wiese, Hasselstrøm, J. B., Hermansen, S. K., Rasmussen, Brian Schou, Andreasen, M. F., Christoffersen, D. J. & Linnet, Kristian, 2022, In: Forensic Science International. 333, 8 p., 111207.

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

  34. 2021
  35. 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

  36. Published

    Safety and efficacy of low-dose medical cannabis oils in multiple sclerosis

    S, G., Hb, S., Linnet, Kristian, Thomsen, Ragnar, Rasmussen, Brian Schou, Ps, S., F, S. & Ab, O., Feb 2021, In: Multiple Sclerosis and Related Disorders. 48, 8 p., 102708.

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

  37. Published

    Fatal poisoning among drug users in Denmark in 2017

    Simonsen, Kirsten Wiese, Christoffersen, D. J., Linnet, Kristian & Andersen, C. U., 1 Jan 2021, In: Danish Medical Journal. 68, 1, p. 1-10 10 p., A07200560.

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

  38. Published

    Increased risk of fatal intoxication and polypharmacy among psychiatric patients at death

    Reuss, C. F., Hasselstrøm, J. B., Linnet, Kristian, Christoffersen, D. J., Leth, P. M., Boel, L. W. T. & Banner, Jytte, Jan 2021, In: Journal of Forensic Sciences. 66, 1, p. 255-264 10 p.

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

  39. 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

  40. 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

  41. Published

    A quantitative method for the selective 5-HT2A agonist 25CN-NBOH in rat plasma and brain

    Breusova, K., Ernstsen, K. G., Palner, M., Linnet, Kristian, Kristensen, Jesper Langgaard & Kretschmann, A. C., 2021, In: Journal of Pharmaceutical and Biomedical Analysis. 199, 114016.

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

  42. Published

    Analysis of seized peptide and protein-based doping agents using four complimentary methods: Liquid chromatography coupled with time of flight mass spectrometry, liquid chromatography-ultraviolet, Bradford, and immunoassays

    Høj, L. J., Rasmussen, Brian Schou, Dalsgaard, Petur Weihe & Linnet, Kristian, 2021, In: Drug Testing and Analysis. 13, 7, p. 1457-1463

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

  43. Published

    CYP2D6 Genotyping and Antipsychotic-Associated Extrapyramidal Adverse Effects in a Randomized Trial of Aripiprazole Versus Quetiapine Extended Release in Children and Adolescents, Aged 12-17 Years, With First Episode Psychosis

    Rudå, Ditte, mfw347, mfw347, Decara, M. S., Klauber, D. G., Fagerlund, Birgitte, Møllegaard, J. R., Linnet, Kristian, Werge, Thomas, Correll, C. U., Fink-Jensen, Anders, Jürgens, Gesche & Pagsberg, Anne Katrine, 2021, In: Journal of Clinical Psychopharmacology. 41, 6, p. 667-672

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

  44. Published

    Cannabidiol versus risperidone for treatment of recent-onset psychosis with comorbid cannabis use: study protocol for a randomized controlled clinical trial

    Rasmussen, J. Ø., Jennum, Poul, Linnet, Kristian, Glenthøj, Birte Yding & Baandrup, Lone, 2021, In: BMC Psychiatry. 21, 11 p., 404.

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

  45. Published

    Data driven strategies in forensic toxicology based on a comprehensive, structured digital archive of 6 years of systematic, forensic HRMS data

    Mardal, Marie, Rasmussen, Brian Schou, Dalsgaard, Petur Weihe, Linnet, Kristian & Mollerup, Christian Brinch, 2021. 1 p.

    Research output: Contribution to conference › Poster › Research

  46. Published

    Development of a single retention time prediction model integrating multiple liquid chromatography systems: Application to new psychoactive substances

    Pasin, Daniel Joel, Mollerup, Christian Brinch, Rasmussen, Brian Schou, Linnet, Kristian & Dalsgaard, Petur Weihe, 2021, In: Analytica Chimica Acta. 1184, 10 p., 339035.

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

  47. 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

  48. Published

    Measurement of endogenous metabolites in ante mortem and post mortem whole blood samples using non targeted metabolomics on LC QTOFMS

    Kinyua, Juliet Wawira, Mardal, Marie, Dalsgaard, Petur Weihe, Mollerup, Christian Brinch, Rasmussen, B. & Linnet, Kristian, 2021. 1 p.

    Research output: Contribution to conference › Poster › Research

  49. 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

  50. Published

    Simple implementation of muscle tissue into routine workflow of blood analysis in forensic cases: A validated method for quantification of 29 drugs in postmortem blood and muscle samples by UHPLC-MS/MS

    Hansen, Stine Lund, Nielsen, Marie Katrine Klose, Linnet, Kristian & Rasmussen, Brian Schou, 2021, In: Forensic Science International. 325, 10 p., 110901.

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

  51. 2020
  52. 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

  53. Published

    Identification of new psychoactive substances in seized material using UHPLC-QTOF-MS and an online mass spectral database

    Cüpper, M., Dalsgaard, Petur Weihe & Linnet, Kristian, Nov 2020, In: Journal of Analytical Toxicology. 44, 9, p. 1047-1051 5 p.

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

  54. 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

  55. Published

    Treatment Status and Use of Psychoactive Substances in Deceased Drug Users

    Kruckow, L., Tjagvad, C., Clausen, T., Linnet, Kristian & Banner, Jytte, Mar 2020, In: European Addiction Research. 26, 2, p. 57-65 9 p.

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

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