Claudia Barth

• de Lange, Ann-Marie Glasø; Leonardsen, Esten Høyland; Barth, Claudia; Schindler, Louise S.; Crestol, Arielle & Holm, Madelene Christin [Vis alle 10 forfattere av denne artikkelen] (2024). Parental status and markers of brain and cellular age: A 3D convolutional network and classification study. Psychoneuroendocrinology. ISSN 0306-4530. 165. doi: 10.1016/j.psyneuen.2024.107040.
• Sartorius, Alina Marie; Rokicki, Jaroslav; Birkeland, Siri; Bettella, Francesco; Barth, Claudia & de Lange, Ann-Marie Glasø [Vis alle 17 forfattere av denne artikkelen] (2024). An evolutionary timeline of the oxytocin signaling pathway. Communications Biology. ISSN 2399-3642. 7(1). doi: 10.1038/s42003-024-06094-9.
• Jørgensen, Kjetil Nordbø; Nerland, Stener; Slapø, Nora Berz; Norbom, Linn Bonaventure; Mørch-Johnsen, Lynn Egeland & Wortinger, Laura Anne [Vis alle 13 forfattere av denne artikkelen] (2024). Assessing regional intracortical myelination in schizophrenia spectrum and bipolar disorders using the optimized T1w/T2w-ratio. Psychological Medicine. ISSN 0033-2917. doi: 10.1017/S0033291724000503.
• Heller, Carina; Barth, Claudia; Silk, Tim J.; Vijayakumar, Nandita; Carmona, Susana & Martinez-Garcia, Magdalena [Vis alle 13 forfattere av denne artikkelen] (2024). The ENIGMA-Neuroendocrinology working group to bridge gaps in female mental health research. Nature Mental Health. doi: 10.1038/s44220-024-00224-2.
• Andreou, Dimitrios; Steen, Nils Eiel; Mørch-Johnsen, Lynn Egeland; Jørgensen, Kjetil Nordbø; Wortinger, Laura Anne & Barth, Claudia [Vis alle 19 forfattere av denne artikkelen] (2024). Toxoplasma gondii infection associated with inflammasome activation and neuronal injury. Scientific Reports. ISSN 2045-2322. 14(1). doi: 10.1038/s41598-024-55887-9.
• Si, Shuqing; Bi, Anbreen; Yu, Zhaoying; See, Cheryl; Kelly, Sinead & Ambrogi, Sonia [Vis alle 45 forfattere av denne artikkelen] (2024). Mapping gray and white matter volume abnormalities in early-onset psychosis: an ENIGMA multicenter voxel-based morphometry study. Molecular Psychiatry. ISSN 1359-4184. doi: 10.1038/s41380-023-02343-1.
• Bakke, Laura Anne Wortinger; Stavrum, Anne-Kristin Støbakk; Shadrin, Alexey; Szabo, Attila; Rukke, Sondre Høeg & Nerland, Stener [Vis alle 17 forfattere av denne artikkelen] (2024). Divergent epigenetic responses to perinatal asphyxia in severe mental disorders. Translational Psychiatry. ISSN 2158-3188. 14(1). doi: 10.1038/s41398-023-02709-7.
• Ruggeri, Aurora; Nerland, Stener; Mørch-Johnsen, Lynn Egeland; Jørgensen, Kjetil Nordbø; Barth, Claudia & Bakke, Laura Anne Wortinger [Vis alle 9 forfattere av denne artikkelen] (2024). Hypothalamic Subunit Volumes in Schizophrenia and Bipolar Spectrum Disorders. Schizophrenia Bulletin. ISSN 0586-7614. 50(3), s. 533–544. doi: 10.1093/schbul/sbad176.
• Quintana, Daniel; Glaser, Benjamin; Kang, Heemin; Bull, Emilie Meyer; Audunsdottir, Kristin & Sartorius, Alina Marie [Vis alle 7 forfattere av denne artikkelen] (2023). The interplay of oxytocin and sex hormones. OSF Preprints. doi: 10.31234/osf.io/9eh28.
• Wierenga, Lara M.; Ruigrok, Amber; Aksnes, Eira Ranheim; Barth, Claudia; Beck, Dani & Burke, Sarah M. [Vis alle 21 forfattere av denne artikkelen] (2023). Recommendations for a Better Understanding of Sex and Gender in the Neuroscience of Mental Health. Biological Psychiatry: Global Open Science. ISSN 2667-1743. 4(2). doi: 10.1016/j.bpsgos.2023.100283. Fulltekst i vitenarkiv
• Schindler, Louise S; Subramaniapillai, Sivaniya; Ambikairajah, Ananthan; Barth, Claudia; Crestol, Arielle & Voldsbekk, Irene [Vis alle 15 forfattere av denne artikkelen] (2023). Cardiometabolic health across menopausal years is linked to white matter hyperintensities up to a decade later. Frontiers in Global Women’s Health. 4. doi: 10.3389/fgwh.2023.1320640. Fulltekst i vitenarkiv
• Barth, Claudia; Tamnes, Christian Krog & Agartz, Ingrid (2023). Structural brain imaging in early-onset psychosis. I Agartz, Ingrid & Smelror, Runar (Red.), Adolescent Psychosis: Clinical and Scientific Perspectives. Academic Press. ISSN 978-0-323-89832-4.
• Wortinger, Laura Anne ; Shadrin, Alexey; Szabo, Attila; Nerland, Stener; Smelror, Runar & Jørgensen, Kjetil Nordbø [Vis alle 13 forfattere av denne artikkelen] (2023). The impact of placental genomic risk for schizophrenia and birth asphyxia on brain development. Translational Psychiatry. ISSN 2158-3188. 13(1). doi: 10.1038/s41398-023-02639-4. Fulltekst i vitenarkiv Vis sammendrag

  The placenta plays a role in fetal brain development, and pregnancy and birth complications can be signs of placental dysfunction. Birth asphyxia is associated with smaller head size and higher risk of developing schizophrenia (SZ), but whether birth asphyxia and placental genomic risk factors associated with SZ are related and how they might impact brain development is unclear. 433 adult patients with SZ and 870 healthy controls were clinically evaluated and underwent brain magnetic resonance imaging. Pregnancy and birth information were obtained from the Medical Birth Registry of Norway. Polygenic risk scores (PRS) from the latest genomewide association study in SZ were differentiated into placental PRS (PlacPRS) and non-placental PRS. If the interaction between PRSs and birth asphyxia on case-control status was significant, neonatal head circumference (nHC) and adult intracranial volume (ICV) were further evaluated with these variables using multiple regression. PlacPRS in individuals with a history of birth asphyxia was associated with a higher likelihood of being a patient with SZ (t = 2.10, p = 0.018). We found a significant interaction between PlacPRS and birth asphyxia on nHC in the whole sample (t = −2.43, p = 0.008), with higher placental PRS for SZ associated with lower nHC in those with birth asphyxia. This relationship was specific to males (t = −2.71, p = 0.005) and also found with their adult ICV (t = −1.97, p = 0.028). These findings suggest that placental pathophysiology and birth asphyxia may affect early and late trajectories of brain development, particularly in males with a higher vulnerability to SZ. This knowledge might lead to new strategies of treatment and prevention in SZ.

• Barth, Claudia; Crestol, Arielle; de Lange, Ann-Marie Glasø & Galea, Liisa A.M (2023). Sex steroids and the female brain across the lifespan: insights into risk of depression and Alzheimer's disease. The Lancet Diabetes and Endocrinology. ISSN 2213-8587. 11(12), s. 926–941. doi: 10.1016/S2213-8587(23)00224-3.
• Zsido, Rachel G.; Williams, Angharad N.; Barth, Claudia; Serio, Bianca; Kurth, Luisa & Mildner, Toralf [Vis alle 11 forfattere av denne artikkelen] (2023). Ultra-high-field 7T MRI reveals changes in human medial temporal lobe volume in female adults during menstrual cycle. Nature Mental Health. doi: 10.1038/s44220-023-00125-w. Fulltekst i vitenarkiv
• Barth, Claudia; Nerland, Stener; Jørgensen, Kjetil Nordbø; Haatveit, Beathe; Bakke, Laura Anne Wortinger & Melle, Ingrid [Vis alle 10 forfattere av denne artikkelen] (2023). Altered Sex Differences in Hippocampal Subfield Volumes in Schizophrenia. Schizophrenia Bulletin. ISSN 0586-7614. 50(1), s. 107–119. doi: 10.1093/schbul/sbad091. Fulltekst i vitenarkiv Vis sammendrag

  Background and hypothesis: The hippocampus is a heterogenous brain structure that differs between the sexes and has been implicated in the pathophysiology of psychiatric illnesses. Here, we explored sex and diagnostic group differences in hippocampal subfield volumes, in individuals with schizophrenia spectrum disorder (SZ), bipolar disorders (BD), and healthy controls (CTL). Study design: One thousand and five hundred and twenty-one participants underwent T1-weighted magnetic resonance imaging (SZ, n = 452, mean age 30.7 ± 9.2 [SD] years, males 59.1%; BD, n = 316, 33.7 ± 11.4, 41.5%; CTL, n = 753, 34.1 ± 9.1, 55.6%). Total hippocampal, subfield, and intracranial volumes were estimated with Freesurfer (v6.0.0). Analysis of covariance and multiple regression models were fitted to examine sex-by-diagnostic (sub)group interactions in volume. In SZ and BD, separately, associations between volumes and clinical as well as cognitive measures were examined between the sexes using regression models. Study results: Significant sex-by-group interactions were found for the total hippocampus, dentate gyrus, molecular layer, presubiculum, fimbria, hippocampal-amygdaloid transition area, and CA4, indicating a larger volumetric deficit in male patients relative to female patients when compared with same-sex CTL. Subgroup analyses revealed that this interaction was driven by males with schizophrenia. Effect sizes were overall small (partial η < 0.02). We found no significant sex differences in the associations between hippocampal volumes and clinical or cognitive measures in SZ and BD. Conclusions: Using a well-powered sample, our findings indicate that the pattern of morphological sex differences in hippocampal subfields is altered in individuals with schizophrenia relative to CTL, due to higher volumetric deficits in males.

• Mørch-Johnsen, Lynn Egeland; Jørgensen, Kjetil Nordbø; Barth, Claudia; Nerland, Stener; Bringslid, Ida Kippersund & Wortinger, Laura Anne [Vis alle 10 forfattere av denne artikkelen] (2023). Thalamic nuclei volumes in schizophrenia and bipolar spectrum disorders – Associations with diagnosis and clinical characteristics. Schizophrenia Research. ISSN 0920-9964. 256, s. 26–35. doi: 10.1016/j.schres.2023.04.008. Fulltekst i vitenarkiv Vis sammendrag

  Background The thalamus is central to brain functions ranging from primary sensory processing to higher-order cognition. Structural deficits in thalamic association nuclei such as the pulvinar and mediodorsal nuclei have previously been reported in schizophrenia. However, the specificity with regards to clinical presentation, and whether or not bipolar disorder (BD) is associated with similar alterations is unclear. Methods We investigated thalamic nuclei volumes in 334 patients with schizophrenia spectrum disorders (SSD) (median age 29 years, 59 % male), 322 patients with BD (30 years, 40 % male), and 826 healthy controls (HC) (34 years, 54 % male). Volumes of 25 thalamic nuclei were extracted from T1-weighted magnetic resonance imaging using an automated Bayesian segmentation method and compared between groups. Furthermore, we explored associations with clinical characteristics across diagnostic groups, including psychotic and mood symptoms and medication use, as well as diagnostic subtype in BD. Results Significantly smaller volumes were found in the mediodorsal, pulvinar, and lateral and medial geniculate thalamic nuclei in SSD. Similarly, smaller volumes were found in BD in the same four regions, but mediodorsal nucleus volume alterations were limited to its lateral part and pulvinar alterations to its anterior region. Smaller volumes in BD compared to HC were seen only in BD type I, not BD type II. Across diagnoses, having more negative symptoms was associated with smaller pulvinar volumes. Conclusions Structural alterations were found in both SSD and BD, mainly in the thalamic association nuclei. Structural deficits in the pulvinar may be of relevance for negative symptoms.

• Sacher, Julia; Zsido, Rachel G.; Barth, Claudia; Zientek, Franziska; Rullmann, Michael & Luthardt, Julia [Vis alle 18 forfattere av denne artikkelen] (2023). Increase in Serotonin Transporter Binding in Patients With Premenstrual Dysphoric Disorder Across the Menstrual Cycle: A Case-Control Longitudinal Neuroreceptor Ligand Positron Emission Tomography Imaging Study. Biological Psychiatry. ISSN 0006-3223. 93(12), s. 1081–1088. doi: 10.1016/j.biopsych.2022.12.023.
• Lindseth, Linn Renate Sjøveian; de Lange, Ann-Marie Glasø; van der Meer, Dennis; Agartz, Ingrid; Westlye, Lars Tjelta & Tamnes, Christian Krog [Vis alle 7 forfattere av denne artikkelen] (2023). Associations between reproductive history, hormone use, APOE ε4 genotype and cognition in middle- to older-aged women from the UK Biobank. Frontiers in Aging Neuroscience. ISSN 1663-4365. 14:1014605, s. 1–13. doi: 10.3389/fnagi.2022.1014605. Fulltekst i vitenarkiv Vis sammendrag

  Introduction: Relative to men, women are at a higher risk of developing age-related neurocognitive disorders including Alzheimer’s disease. While women’s health has historically been understudied, emerging evidence suggests that reproductive life events such as pregnancy and hormone use may influence women’s cognition later in life. Methods: We investigated the associations between reproductive history, exogenous hormone use, apolipoprotein (APOE) ε4 genotype and cognition in 221,124 middle- to older-aged (mean age 56.2 ± 8.0 years) women from the UK Biobank. Performance on six cognitive tasks was assessed, covering four cognitive domains: episodic visual memory, numeric working memory, processing speed, and executive function. Results: A longer reproductive span, older age at menopause, older age at first and last birth, and use of hormonal contraceptives were positively associated with cognitive performance later in life. Number of live births, hysterectomy without oophorectomy and use of hormone therapy showed mixed findings, with task-specific positive and negative associations. Effect sizes were generally small (Cohen’s d < 0.1). While APOE ε4 genotype was associated with reduced processing speed and executive functioning, in a dose-dependent manner, it did not influence the observed associations between female-specific factors and cognition. Discussion: Our findings support previous evidence of associations between a broad range of female-specific factors and cognition. The positive association between a history of hormonal contraceptive use and cognition later in life showed the largest effect sizes (max. d = 0.1). More research targeting the long-term effects of female-specific factors on cognition and age-related neurocognitive disorders including Alzheimer’s disease is crucial for a better understanding of women’s brain health and to support women’s health care.

• Barth, Claudia; Kelly, Sinead; Nerland, Stener; Jahanshad, Neda; Alloza, Clara & Ambrogi, Sonia [Vis alle 44 forfattere av denne artikkelen] (2022). In vivo white matter microstructure in adolescents with early-onset psychosis: a multi-site mega-analysis. Molecular Psychiatry. ISSN 1359-4184. s. 1–11. doi: 10.1038/s41380-022-01901-3. Fulltekst i vitenarkiv Vis sammendrag

  Emerging evidence suggests brain white matter alterations in adolescents with early-onset psychosis (EOP; age of onset <18 years). However, as neuroimaging methods vary and sample sizes are modest, results remain inconclusive. Using harmonized data processing protocols and a mega-analytic approach, we compared white matter microstructure in EOP and healthy controls using diffusion tensor imaging (DTI). Our sample included 321 adolescents with EOP (median age = 16.6 years, interquartile range (IQR) = 2.14, 46.4% females) and 265 adolescent healthy controls (median age = 16.2 years, IQR = 2.43, 57.7% females) pooled from nine sites. All sites extracted mean fractional anisotropy (FA), mean diffusivity (MD), radial diffusivity (RD), and axial diffusivity (AD) for 25 white matter regions of interest per participant. ComBat harmonization was performed for all DTI measures to adjust for scanner differences. Multiple linear regression models were fitted to investigate case-control differences and associations with clinical variables in regional DTI measures. We found widespread lower FA in EOP compared to healthy controls, with the largest effect sizes in the superior longitudinal fasciculus (Cohen’s d = 0.37), posterior corona radiata (d = 0.32), and superior fronto‐occipital fasciculus (d = 0.31). We also found widespread higher RD and more localized higher MD and AD. We detected significant effects of diagnostic subgroup, sex, and duration of illness, but not medication status. Using the largest EOP DTI sample to date, our findings suggest a profile of widespread white matter microstructure alterations in adolescents with EOP, most prominently in male individuals with early-onset schizophrenia and individuals with a shorter duration of illness.

• Schindler, Louise S; Subramaniapillai, Sivaniya; Barth, Claudia; van der Meer, Dennis; Pedersen, Mads Lund & Kaufmann, Tobias [Vis alle 18 forfattere av denne artikkelen] (2022). Associations between abdominal adipose tissue, reproductive span, and brain characteristics in post-menopausal women. NeuroImage: Clinical. ISSN 2213-1582. 36. doi: 10.1016/j.nicl.2022.103239. Fulltekst i vitenarkiv
• Nerland, Stener; Stokkan, Therese; Jørgensen, Kjetil Nordbø; Wortinger, Laura Anne ; Richard, Geneviève & Beck, Dani [Vis alle 11 forfattere av denne artikkelen] (2022). A comparison of intracranial volume estimation methods and their cross-sectional and longitudinal associations with age. Human Brain Mapping. ISSN 1065-9471. doi: 10.1002/hbm.25978. Fulltekst i vitenarkiv Vis sammendrag

  Intracranial volume (ICV) is frequently used in volumetric magnetic resonance imaging (MRI) studies, both as a covariate and as a variable of interest. Findings of associations between ICV and age have varied, potentially due to differences in ICV estimation methods. Here, we compared five commonly used ICV estimation methods and their associations with age. T1-weighted cross-sectional MRI data was included for 651 healthy individuals recruited through the NORMENT Centre (mean age = 46.1 years, range = 12.0–85.8 years) and 2410 healthy individuals recruited through the UK Biobank study (UKB, mean age = 63.2 years, range = 47.0–80.3 years), where longitudinal data was also available. ICV was estimated with FreeSurfer (eTIV and sbTIV), SPM12, CAT12, and FSL. We found overall high correlations across ICV estimation method, with the lowest observed correlations between FSL and eTIV (r = .87) and between FSL and CAT12 (r = .89). Widespread proportional bias was found, indicating that the agreement between methods varied as a function of head size. Body weight, age, sex, and mean ICV across methods explained the most variance in the differences between ICV estimation methods, indicating possible confounding for some estimation methods. We found both positive and negative cross-sectional associations with age, depending on dataset and ICV estimation method. Longitudinal ICV reductions were found for all ICV estimation methods, with annual percentage change ranging from −0.293% to −0.416%. This convergence of longitudinal results across ICV estimation methods offers strong evidence for age-related ICV reductions in mid- to late adulthood.

• Subramaniapillai, Sivaniya; Suri, Sana; Barth, Claudia; Maximov, Ivan; Voldsbekk, Irene & van der Meer, Dennis [Vis alle 13 forfattere av denne artikkelen] (2022). Sex- and age-specific associations between cardiometabolic risk and white matter brain age in the UK Biobank cohort. Human Brain Mapping. ISSN 1065-9471. 43(12), s. 3759–3774. doi: 10.1002/hbm.25882. Fulltekst i vitenarkiv
• Mørch-Johnsen, Lynn Egeland; Smelror, Runar; Andreou, Dimitrios; Barth, Claudia; Johannessen, Cecilie Haggag & Wedervang-Resell, Kirsten [Vis alle 15 forfattere av denne artikkelen] (2022). Negative Symptom Domains Are Associated With Verbal Learning in Adolescents With Early Onset Psychosis. Frontiers in Psychiatry. ISSN 1664-0640. 12. doi: 10.3389/fpsyt.2021.825681. Fulltekst i vitenarkiv
• Wortinger, Laura Anne ; Barth, Claudia; Nerland, Stener; Jørgensen, Kjetil Nordbø; Shadrin, Alexey & Szabo, Attila [Vis alle 11 forfattere av denne artikkelen] (2021). Association of Birth Asphyxia With Regional White Matter Abnormalities Among Patients With Schizophrenia and Bipolar Disorders. JAMA Network Open. ISSN 2574-3805. 4(12). doi: 10.1001/jamanetworkopen.2021.39759. Fulltekst i vitenarkiv Vis sammendrag

  Importance: White matter (WM) abnormalities are commonly reported in psychiatric disorders. Whether peripartum insufficiencies in brain oxygenation, known as birth asphyxia, are associated with WM of patients with severe mental disorders is unclear. Objective: To examine the association between birth asphyxia and WM in adult patients with schizophrenia and bipolar disorders (BDs) compared with healthy adults. Design, setting, and participants: In this case-control study, all individuals participating in the ongoing Thematically Organized Psychosis project were linked to the Medical Birth Registry of Norway (MBRN), where a subset of 271 patients (case group) and 529 healthy individuals (control group) had undergone diffusion-weighted imaging (DWI). Statistical analyses were performed from June 16, 2020, to March 9, 2021. Exposures: Birth asphyxia was defined based on measures from standardized reporting at birth in the MBRN. Main outcomes and measures: Associations between birth asphyxia and WM regions of interest diffusion metrics, ie, fractional anisotropy (FA), axial diffusivity (AD), and radial diffusivity (RD), were compared between groups using analysis of covariance, adjusted for age, age squared, and sex. Results: Of the 850 adults included in the study, 271 were in the case group (140 [52%] female individuals; mean [SD] age, 28.64 [7.43] years) and 579 were in the control group (245 [42%] female individuals; mean [SD] age, 33.54 [8.31] years). Birth asphyxia measures were identified in 15% to 16% of participants, independent of group. The posterior limb of the internal capsule (PLIC) showed a significant diagnostic group × birth asphyxia interaction (F(1, 843) = 11.46; P = .001), reflecting a stronger association between birth asphyxia and FA in the case group than the control group. RD, but not AD, also displayed a significant diagnostic group × birth asphyxia interaction (F(1, 843) = 9.28; P = .002) in the PLIC, with higher values in patients with birth asphyxia and similar effect sizes as observed for FA. Conclusions and relevance: In this case-control study, abnormalities in the PLIC of adult patients with birth asphyxia may suggest a greater susceptibility to hypoxia in patients with severe mental illness, which could lead to myelin damage or impeded brain development. Echoing recent early-stage schizophrenia studies, abnormalities of the PLIC are relevant to psychiatric disorders, as the PLIC contains important WM brain pathways associated with language, cognitive function, and sensory function, which are impaired in schizophrenia and BDs.

• Hilland, Eva; Johannessen, Cecilie Haggag; Jonassen, Rune; Alnæs, Dag; Jørgensen, Kjetil Nordbø & Barth, Claudia [Vis alle 17 forfattere av denne artikkelen] (2021). Aberrant default mode connectivity in adolescents with early-onset psychosis: A resting state fMRI study. NeuroImage: Clinical. ISSN 2213-1582. 33. doi: 10.1016/j.nicl.2021.102881. Fulltekst i vitenarkiv
• Voldsbekk, Irene; Barth, Claudia; Maximov, Ivan I.; Kaufmann, Tobias; Beck, Dani & Richard, Genevive [Vis alle 9 forfattere av denne artikkelen] (2021). A history of previous childbirths is linked to women's white matter brain age in midlife and older age. Human Brain Mapping. ISSN 1065-9471. s. 1–15. doi: 10.1002/hbm.25553. Fulltekst i vitenarkiv
• Smelror, Runar; Johannessen, Cecilie Haggag; Wedervang-Resell, Kirsten; Jørgensen, Kjetil Nordbø; Barth, Claudia & Andreou, Dimitrios [Vis alle 11 forfattere av denne artikkelen] (2021). Cognitive Impairment Profile in Adolescent Early-Onset Psychosis Usingthe MATRICS Battery: Age and Sex Effects. Neuropsychology. ISSN 0894-4105. 35(3), s. 300–309. doi: 10.1037/neu0000723.
• Wortinger, Laura Anne; Jørgensen, Kjetil Nordbø; Barth, Claudia; Nerland, Stener; Smelror, Runar Elle & Vaskinn, Anja [Vis alle 9 forfattere av denne artikkelen] (2021). Significant association between intracranial volume and verbal intellectual abilities in patients with schizophrenia and a history of birth asphyxia. Psychological Medicine. ISSN 0033-2917. s. 1–10. doi: 10.1017/S0033291721000489. Fulltekst i vitenarkiv
• Barth, Claudia; Nerland, Stener; de Lange, Ann-Marie Glasø; Wortinger, Laura Anne ; Hilland, Eva & Andreassen, Ole Andreas [Vis alle 8 forfattere av denne artikkelen] (2021). In Vivo Amygdala Nuclei Volumes in Schizophrenia and Bipolar Disorders. Schizophrenia Bulletin. ISSN 0586-7614. 47(5), s. 1431–1441. doi: 10.1093/schbul/sbaa192. Fulltekst i vitenarkiv
• Bakke, Laura A Wortinger; Engen, Kristine; Barth, Claudia; Andreassen, Ole Andreas; Jørgensen, Kjetil Nordbø & Agartz, Ingrid (2020). Asphyxia at birth affects brain structure in patients on the schizophrenia-bipolar disorder spectrum and healthy participants. Psychological Medicine. ISSN 0033-2917. doi: 10.1017/S0033291720002779. Fulltekst i vitenarkiv
• Gurholt, Tiril Pedersen; Lonning, Vera Louise Hiorth; Nerland, Stener; Jørgensen, Kjetil Nordbø; Haukvik, Unn Kristin H. & Alloza, Clara [Vis alle 41 forfattere av denne artikkelen] (2020). Intracranial and subcortical volumes in adolescents with early‐onset psychosis: A multisite mega‐analysis from the ENIGMA consortium. Human Brain Mapping. ISSN 1065-9471. s. 373–384. doi: 10.1002/hbm.25212. Fulltekst i vitenarkiv
• Ambrase, Aiste; Lewis, Carolin; Barth, Claudia & Derntl, Birgit (2020). Influence of ovarian hormones on value-based decision-making systems: contribution to sexual dimorphisms in mental disorders. Frontiers in Neuroendocrinology (FIN). ISSN 0091-3022. 60:100873, s. 1–18. doi: 10.1016/j.yfrne.2020.100873.
• Barth, Claudia & de Lange, Ann-Marie Glasø (2020). Towards an understanding of women's brain aging: the immunology of pregnancy and menopause. Frontiers in Neuroendocrinology (FIN). ISSN 0091-3022. 58:100850, s. 1–11. doi: 10.1016/j.yfrne.2020.100850. Fulltekst i vitenarkiv
• de Lange, Ann-Marie Glasø; Barth, Claudia; Kaufmann, Tobias; Maximov, Ivan; van der Meer, Dennis & Agartz, Ingrid [Vis alle 7 forfattere av denne artikkelen] (2020). Women's brain aging: effects of sex-hormone exposure, pregnancies, and genetic risk for Alzheimer's disease. Human Brain Mapping. ISSN 1065-9471. s. 1–10. doi: 10.1002/hbm.25180. Fulltekst i vitenarkiv
• Barth, Claudia; Lonning, Vera Louise Hiorth; Gurholt, Tiril Pedersen; Andreassen, Ole Andreas; Myhre, Anne Margrethe & Agartz, Ingrid (2020). Exploring white matter microstructure and the impact of antipsychotics in adolescent-onset psychosis. PLOS ONE. ISSN 1932-6203. doi: 10.1371/journal.pone.0233684. Fulltekst i vitenarkiv
• Barth, Claudia; Jørgensen, Kjetil Nordbø; Wortinger, Laura Anne ; Nerland, Stener; Jönsson, Erik Gunnar & Agartz, Ingrid (2020). Trajectories of brain volume change over 13 years in chronic schizophrenia. Schizophrenia Research. ISSN 0920-9964. doi: 10.1016/j.schres.2020.05.014.
• de Lange, Ann-Marie Glasø; Barth, Claudia; Kaufmann, Tobias; Anatürk, Melis; Suri, Sana & Ebmeier, Klaus [Vis alle 7 forfattere av denne artikkelen] (2020). The maternal brain: region-specific patterns of brain aging are traceable decades after childbirth. Human Brain Mapping. ISSN 1065-9471. doi: 10.1002/hbm.25152. Fulltekst i vitenarkiv
• Bakke, Laura A. Wortinger ; Engen, Kristine; Barth, Claudia; Lonning, Vera Louise Hiorth; Jørgensen, Kjetil Nordbø & Andreassen, Ole Andreas [Vis alle 10 forfattere av denne artikkelen] (2019). Obstetric complications and intelligence in patients on the schizophrenia-bipolar spectrum and healthy participants. Psychological Medicine. ISSN 0033-2917. s. 1–9. doi: 10.1017/S0033291719002046.
• Barth, Claudia; Steele, Christopher J.; Mueller, Karsten; Rekkas, Vivien P; Arelin, Katrin & Pampel, Andre [Vis alle 10 forfattere av denne artikkelen] (2016). In-vivo Dynamics of the Human Hippocampus across the Menstrual Cycle. Scientific Reports. ISSN 2045-2322. doi: 10.1038/srep32833.
• Arelin, Katrin; Mueller, Karsten; Barth, Claudia; Rekkas, Vivien P; Kratzsch, Jürgen & Burmann, Inga [Vis alle 8 forfattere av denne artikkelen] (2015). Progesterone mediates brain functional connectivity changes during the menstrual cycle - a pilot resting state MRI study. Frontiers in Neuroscience. ISSN 1662-4548. doi: 10.3389/fnins.2015.00044.
• Barth, Claudia; Villringer, Arno & Sacher, Julia (2015). Sex hormones affect neurotransmitters and shape the adult female brain during hormonal transition periods. . Frontiers in Neuroscience. ISSN 1662-4548. doi: 10.3389/fnins.2015.00037.
• Schaefer, Alexander; Burmann, Inga; Regenthal, Ralf; Arelin, Katrin; Barth, Claudia & Pampel, Andre [Vis alle 9 forfattere av denne artikkelen] (2014). Serotonergic modulation of intrinsic functional connectivity. Current Biology. ISSN 0960-9822. doi: 10.1016/j.cub.2014.08.024.

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• Koebele, Stephanie V.; Herrera, Alexandra Ycaza; Taylor, Caitlin M.; Barth, Claudia & Schwarz, Jaclyn (2022). Editorial: Sex Hormone Fluctuations Across the Female Lifespan: Mechanisms of Action on Brain Structure, Function, and Behavior. Frontiers in Behavioral Neuroscience. ISSN 1662-5153. 16. doi: 10.3389/fnbeh.2022.964740.
• Barth, Claudia; Blokland, Gabriella A. M. & Riecher-Rössler, Anita (2022). Editorial: Sex and the Suffering Brain - A Call for Sex-Stratified Analyses in Psychiatric Research. Frontiers in Psychiatry. ISSN 1664-0640. 13. doi: 10.3389/fpsyt.2022.849009.
• Sacher, Julia; Hesse, Swen; Zsido, Rachel; Barth, Claudia; Zientek, Franziska & Rullmann, Michael [Vis alle 13 forfattere av denne artikkelen] (2020). Increase in Serotonin Transporter Binding Across the Menstrual Cycle in Patients With Premenstrual Dysphoric Disorder: A Case-Control Longitudinal Positron Emission Tomography (PET) Imaging Study. Neuropsychopharmacology. ISSN 0893-133X. doi: 10.1038/s41386-020-00890-7.

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