Publications 2025

Andreou D, Steen NE, Jørgensen KN, Nerland S, Ueland T, Wortinger LA, Drabløs I, Calkova T, Ormerod MBEG, Sæther LS, Andreassen OA, Yolken RH, Agartz I (2025)
Toxoplasma gondii associated with psychotic symptom load and cortisol in severe mental illness
Schizophrenia (Heidelb), 11 (1), 80
DOI 10.1038/s41537-025-00630-0, PubMed 40419482

Mlakar V, Di Forti M, Halff EF, Srivastava DP, Akkouh I, Djurovic S, Martin-Ruiz C, Quintana DS, Birkenæs V, Steen NE, Ormerod MB, Andreassen OA, Aas M (2025)
Coffee intake is associated with telomere length in severe mental disorders
BMJ Ment Health, 28 (1)
DOI 10.1136/bmjment-2025-301700, PubMed 41290361

Ormerod MBEG, Sheikh MA, Ueland T, Hjell G, Rødevand L, Sæther LS, Lunding SH, Johansen IT, Andreou D, Ueland T, Lagerberg TV, Melle I, Djurovic S, Andreassen OA, Steen NE (2025)
Minor immunomodulatory effects of psychotropics suggested in severe mental disorders: Associations of antipsychotics with beta defensin 2, antidepressants with C-reactive protein, and mood stabilizers with soluble interleukin 2 receptor
Eur Psychiatry, 68 (1), e140
DOI 10.1192/j.eurpsy.2025.10104, PubMed 40936381

Ormerod MBEG, Ueland T, Aas M, Hjell G, Rødevand L, Sæther LS, Lunding SH, Johansen IT, Mlakar V, Andreou D, Ueland T, Lagerberg TV, Melle I, Djurovic S, Andreassen OA, Steen NE (2025)
Limited evidence of association between dysregulated immune marker levels and telomere length in severe mental disorders
Acta Neuropsychiatr, 37, e4
DOI 10.1017/neu.2024.62, PubMed 39844366

Publications 2024

Andreou D, Steen NE, Mørch-Johnsen L, Jørgensen KN, Wortinger LA, Barth C, Szabo A, O'Connell KS, Lekva T, Hjell G, Johansen IT, Ormerod MBEG, Haukvik UK, Aukrust P, Djurovic S, Yolken RH, Andreassen OA, Ueland T, Agartz I (2024)
Toxoplasma gondii infection associated with inflammasome activation and neuronal injury
Sci Rep, 14 (1), 5327
DOI 10.1038/s41598-024-55887-9, PubMed 38438515

Inova A, Birkenæs V, Quintana DS, Ormerod MBEG, Ueland T, Ueland T, Djurovic S, Andreassen O, Steen NE, Aas M (2024)
Cortisol and C-reactive protein (CRP) regulation in severe mental disorders
Psychoneuroendocrinology, 172, 107272
DOI 10.1016/j.psyneuen.2024.107272, PubMed 39740359

Johansen IT, Steen NE, Rødevand L, Lunding SH, Hjell G, Ormerod MBEG, Agartz I, Melle I, Lagerberg TV, Nerhus M, Andreassen OA (2024)
Sex differences in autonomic adverse effects related to antipsychotic treatment and associated hormone profiles
Schizophrenia (Heidelb), 10 (1), 6
DOI 10.1038/s41537-023-00430-4, PubMed 38182592

Mlakar V, Akkouh I, Halff EF, Srivastava DP, Birkenæs V, Ueland T, Quintana DS, Ormerod MBEG, Steen NE, Djurovic S, Andreassen OA, Aas M (2024)
Telomere biology and its maintenance in schizophrenia spectrum disorders: Exploring links to cognition
Schizophr Res, 272, 89-95
DOI 10.1016/j.schres.2024.08.011, PubMed 39208769

Sæther LS, Szabo A, Akkouh IA, Haatveit B, Mohn C, Vaskinn A, Aukrust P, Ormerod MBEG, Eiel Steen N, Melle I, Djurovic S, Andreassen OA, Ueland T, Ueland T (2024)
Cognitive and inflammatory heterogeneity in severe mental illness: Translating findings from blood to brain
Brain Behav Immun, 118, 287-299
DOI 10.1016/j.bbi.2024.03.014, PubMed 38461955

Publications 2023

Hjell G, Rokicki J, Szabo A, Holst R, Tesli N, Bell C, Fischer-Vieler T, Werner MCF, Lunding SH, Ormerod MBEG, Johansen IT, Djurovic S, Ueland T, Andreassen OA, Melle I, Lagerberg TV, Mørch-Johnsen L, Steen NE, Haukvik UK (2023)
Impulsivity across severe mental disorders: a cross-sectional study of immune markers and psychopharmacotherapy
BMC Psychiatry, 23 (1), 659
DOI 10.1186/s12888-023-05154-4, PubMed 37674162

Jensen SB, Sheikh MA, Akkouh IA, Szabo A, O'Connell KS, Lekva T, Engh JA, Agartz I, Elvsåshagen T, Ormerod MBEG, Weibell MA, Johnsen E, Kroken RA, Melle I, Drange OK, Nærland T, Vaaler AE, Westlye LT, Aukrust P, Djurovic S, Eiel Steen N, Andreassen OA, Ueland T (2023)
Elevated Systemic Levels of Markers Reflecting Intestinal Barrier Dysfunction and Inflammasome Activation Are Correlated in Severe Mental Illness
Schizophr Bull, 49 (3), 635-645
DOI 10.1093/schbul/sbac191, PubMed 36462169

Lunding SH, Ueland T, Aas M, Høegh MC, Werner MCF, Rødevand L, Johansen IT, Hjell G, Ormerod MBEG, Ringen PA, Ottesen A, Lagerberg TV, Melle I, Andreassen OA, Simonsen C, Steen NE (2023)
Tobacco smoking related to childhood trauma mediated by cognitive control and impulsiveness in severe mental disorders
Schizophr Res, 261, 236-244
DOI 10.1016/j.schres.2023.09.041, PubMed 37806047

Mlakar V, Birkenæs V, Elvsaashagen T, Ormerod MBEG, Quintana DS, Ueland T, Melle I, Lagerberg TV, Djurovic S, Martin-Ruiz C, Steen NE, Andreassen OA, Aas M (2023)
Telomere length and verbal learning in bipolar disorders
J Affect Disord, 339, 555-560
DOI 10.1016/j.jad.2023.07.087, PubMed 37459977

Aas M, Andreassen OA, Gjerstad J, Rødevand L, Hjell G, Johansen IT, Lunding SH, Ormerod MBEG, Lagerverg TV, Steen NE, Djurovic S, Akkouh I (2023)
Expression of ANK3 moderates the association between childhood trauma and affective traits in severe mental disorders
Sci Rep, 13 (1), 13845
DOI 10.1038/s41598-023-40310-6, PubMed 37620394

Publications 2022

Hjell G, Szabo A, Mørch-Johnsen L, Holst R, Tesli N, Bell C, Fischer-Vieler T, Werner MCF, Lunding SH, Ormerod MBEG, Johansen IT, Dieset I, Djurovic S, Melle I, Ueland T, Andreassen OA, Steen NE, Haukvik UK (2022)
Interleukin-18 signaling system links to agitation in severe mental disorders
Psychoneuroendocrinology, 140, 105721
DOI 10.1016/j.psyneuen.2022.105721, PubMed 35301151

Johansen IT, Steen NE, Rødevand L, Werner MCF, Lunding SH, Hjell G, Ormerod MBEG, Agartz I, Melle I, Lagerberg TV, Nerhus M, Andreassen OA (2022)
Sex-specific associations between metabolic hormones, severe mental disorders and antipsychotic treatment
Psychoneuroendocrinology, 146, 105927
DOI 10.1016/j.psyneuen.2022.105927, PubMed 36152455

Sæther LS, Ueland T, Haatveit B, Maglanoc LA, Szabo A, Djurovic S, Aukrust P, Roelfs D, Mohn C, Ormerod MBEG, Lagerberg TV, Steen NE, Melle I, Andreassen OA, Ueland T (2022)
Inflammation and cognition in severe mental illness: patterns of covariation and subgroups
Mol Psychiatry, 28 (3), 1284-1292
DOI 10.1038/s41380-022-01924-w, PubMed 36577840

Werner MCF, Wirgenes KV, Shadrin A, Lunding SH, Rødevand L, Hjell G, Ormerod MBEG, Haram M, Agartz I, Djurovic S, Melle I, Aukrust P, Ueland T, Andreassen OA, Steen NE (2022)
Immune marker levels in severe mental disorders: associations with polygenic risk scores of related mental phenotypes and psoriasis
Transl Psychiatry, 12 (1), 38
DOI 10.1038/s41398-022-01811-6, PubMed 35082268

Werner MCF, Wirgenes KV, Shadrin AA, Lunding SH, Rødevand L, Hjell G, Ormerod MBEG, Haram M, Agartz I, Djurovic S, Melle I, Aukrust P, Ueland T, Andreassen OA, Steen NE (2022)
Limited association between infections, autoimmune disease and genetic risk and immune activation in severe mental disorders
Prog Neuropsychopharmacol Biol Psychiatry, 116, 110511
DOI 10.1016/j.pnpbp.2022.110511, PubMed 35063598