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Your search keyword '"Victorsson, Pauliina"' showing total 7 results
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7 results on '"Victorsson, Pauliina"'

3. Cortical Brain Abnormalities in 4474 Individuals With Schizophrenia and 5098 Control Subjects via the Enhancing Neuro Imaging Genetics Through Meta Analysis (ENIGMA) Consortium

Author

Farde, Lars, Flyckt, Lena, Engberg, Göran, Erhardt, Sophie, Fatouros-Bergman, Helena, Cervenka, Simon, Schwieler, Lilly, Piehl, Fredrik, Agartz, Ingrid, Collste, Karin, Victorsson, Pauliina, Malmqvist, Anna, Hedberg, Mikael, Orhan, Funda, van Erp, Theo G.M., Walton, Esther, Hibar, Derrek P., Schmaal, Lianne, Jiang, Wenhao, Glahn, David C., Pearlson, Godfrey D., Yao, Nailin, Fukunaga, Masaki, Hashimoto, Ryota, Okada, Naohiro, Yamamori, Hidenaga, Bustillo, Juan R., Clark, Vincent P., Mueller, Bryon A., Cahn, Wiepke, de Zwarte, Sonja M.C., Hulshoff Pol, Hilleke E., Kahn, René S., Ophoff, Roel A., van Haren, Neeltje E.M., Andreassen, Ole A., Dale, Anders M., Doan, Nhat Trung, Gurholt, Tiril P., Hartberg, Cecilie B., Haukvik, Unn K., Jørgensen, Kjetil N., Lagerberg, Trine V., Melle, Ingrid, Westlye, Lars T., Gruber, Oliver, Kraemer, Bernd, Richter, Anja, Zilles, David, Calhoun, Vince D., Crespo-Facorro, Benedicto, Roiz-Santiañez, Roberto, Tordesillas-Gutiérrez, Diana, Loughland, Carmel, Carr, Vaughan J., Catts, Stanley, Cropley, Vanessa L., Fullerton, Janice M., Green, Melissa J., Henskens, Frans A., Jablensky, Assen, Lenroot, Rhoshel K., Mowry, Bryan J., Michie, Patricia T., Pantelis, Christos, Quidé, Yann, Schall, Ulrich, Scott, Rodney J., Cairns, Murray J., Seal, Marc, Tooney, Paul A., Rasser, Paul E., Cooper, Gavin, Shannon Weickert, Cynthia, Weickert, Thomas W., Morris, Derek W., Hong, Elliot, Kochunov, Peter, Beard, Lauren M., Gur, Raquel E., Gur, Ruben C., Satterthwaite, Theodore D., Wolf, Daniel H., Belger, Aysenil, Brown, Gregory G., Ford, Judith M., Macciardi, Fabio, Mathalon, Daniel H., O’Leary, Daniel S., Potkin, Steven G., Preda, Adrian, Voyvodic, James, Lim, Kelvin O., McEwen, Sarah, Yang, Fude, Tan, Yunlong, Tan, Shuping, Wang, Zhiren, Fan, Fengmei, Chen, Jingxu, Xiang, Hong, Tang, Shiyou, Guo, Hua, Wan, Ping, Wei, Dong, Bockholt, Henry J., Ehrlich, Stefan, Wolthusen, Rick P.F., King, Margaret D., Shoemaker, Jody M., Sponheim, Scott R., De Haan, Lieuwe, Koenders, Laura, Machielsen, Marise W., van Amelsvoort, Therese, Veltman, Dick J., Assogna, Francesca, Banaj, Nerisa, de Rossi, Pietro, Iorio, Mariangela, Piras, Fabrizio, Spalletta, Gianfranco, McKenna, Peter J., Pomarol-Clotet, Edith, Salvador, Raymond, Corvin, Aiden, Donohoe, Gary, Kelly, Sinead, Whelan, Christopher D., Dickie, Erin W., Rotenberg, David, Voineskos, Aristotle N., Ciufolini, Simone, Radua, Joaquim, Dazzan, Paola, Murray, Robin, Reis Marques, Tiago, Simmons, Andrew, Borgwardt, Stefan, Egloff, Laura, Harrisberger, Fabienne, Riecher-Rössler, Anita, Smieskova, Renata, Alpert, Kathryn I., Wang, Lei, Jönsson, Erik G., Koops, Sanne, Sommer, Iris E.C., Bertolino, Alessandro, Bonvino, Aurora, Di Giorgio, Annabella, Neilson, Emma, Mayer, Andrew R., Stephen, Julia M., Kwon, Jun Soo, Yun, Je-Yeon, Cannon, Dara M., McDonald, Colm, Lebedeva, Irina, Tomyshev, Alexander S., Akhadov, Tolibjohn, Kaleda, Vasily, Busatto, Geraldo F., Rosa, Pedro G.P., Serpa, Mauricio H., Zanetti, Marcus V., Hoschl, Cyril, Skoch, Antonin, Spaniel, Filip, Tomecek, David, Hagenaars, Saskia P., McIntosh, Andrew M., Whalley, Heather C., Lawrie, Stephen M., Knöchel, Christian, Oertel-Knöchel, Viola, Stäblein, Michael, Howells, Fleur M., Stein, Dan J., Temmingh, Henk S., Uhlmann, Anne, Lopez-Jaramillo, Carlos, Dima, Danai, McMahon, Agnes, Faskowitz, Joshua I., Gutman, Boris A., Jahanshad, Neda, Thompson, Paul M., and Turner, Jessica A.

Published
2018
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5. Reply to: New Meta- and Mega-analyses of Magnetic Resonance Imaging Findings in Schizophrenia: Do They Really Increase Our Knowledge About the Nature of the Disease Process?

Author

Farde, Lars, Flyckt, Lena, Fatouros-Bergman, Helena, Cervenka, Simon, Agartz, Ingrid, Collste, Karin, Victorsson, Pauliina, Engberg, Göran, Erhardt, Sophie, Schwieler, Lilly, Malmqvist, Anna, Hedberg, Mikael, Orhan, Funda, Piehl, Fredrik, van Erp, Theo G.M., Walton, Esther, Hibar, Derrek P., Schmaal, Lianne, Jiang, Wenhao, Glahn, David C., Pearlson, Godfrey D., Yao, Nailin, Fukunaga, Masaki, Hashimoto, Ryota, Okada, Naohiro, Yamamori, Hidenaga, Clark, Vincent P., Mueller, Bryon A., de Zwarte, Sonja M.C., Ophoff, Roel A., van Haren, Neeltje E.M., Andreassen, Ole A., Gurholt, Tiril P., Gruber, Oliver, Kraemer, Bernd, Richter, Anja, Calhoun, Vince D., Crespo-Facorro, Benedicto, Roiz-Santiañez, Roberto, Tordesillas-Gutiérrez, Diana, Loughland, Carmel, Catts, Stanley, Fullerton, Janice M., Green, Melissa J., Henskens, Frans, Jablensky, Assen, Mowry, Bryan J., Pantelis, Christos, Quidé, Yann, Schall, Ulrich, Scott, Rodney J., Cairns, Murray J., Seal, Marc, Tooney, Paul A., Rasser, Paul E., Cooper, Gavin, Shannon Weickert, Cynthia, Weickert, Thomas W., Hong, Elliot, Kochunov, Peter, Gur, Raquel E., Gur, Ruben C., Ford, Judith M., Macciardi, Fabio, Mathalon, Daniel H., Potkin, Steven G., Preda, Adrian, Fan, Fengmei, Ehrlich, Stefan, King, Margaret D., De Haan, Lieuwe, Veltman, Dick J., Assogna, Francesca, Banaj, Nerisa, de Rossi, Pietro, Iorio, Mariangela, Piras, Fabrizio, Spalletta, Gianfranco, Pomarol-Clotet, Edith, Kelly, Sinead, Ciufolini, Simone, Radua, Joaquim, Murray, Robin, Marques, Tiago Reis, Simmons, Andrew, Borgwardt, Stefan, Schönborn-Harrisberger, Fabienne, Riecher-Rössler, Anita, Smieskova, Renata, Alpert, Kathryn I., Bertolino, Alessandro, Bonvino, Aurora, Di Giorgio, Annabella, Neilson, Emma, Mayer, Andrew R., Yun, Je-Yeon, Cannon, Dara M., Lebedeva, Irina, Tomyshev, Alexander S., Akhadov, Tolibjohn, Kaleda, Vasily, Rosa, Pedro G.P., Serpa, Mauricio H., Zanetti, Marcus V., Hoschl, Cyril, Skoch, Antonin, Spaniel, Filip, Tomecek, David, McIntosh, Andrew M., Whalley, Heather C., Knöchel, Christian, Oertel-Knöchel, Viola, Howells, Fleur M., Stein, Dan J., Temmingh, Henk S., Uhlmann, Anne, Lopez-Jaramillo, Carlos, Dima, Danai, Faskowitz, Joshua I., Gutman, Boris A., Jahanshad, Neda, Thompson, Paul M., and Turner, Jessica A.

Published
2019
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6. Increased number of monocytes and plasma levels of MCP‐1 and YKL‐40 in first‐episode psychosis.

Author

Orhan, F., Schwieler, L., Fatouros‐Bergman, H., Malmqvist, A., Cervenka, S., Collste, K., Flyckt, L., Farde, L., Sellgren, C. M., Piehl, F., Engberg, G., Erhardt, S., Hedberg, Mikael, and Victorsson, Pauliina

Subjects
MONOCYTES, PSYCHOSES, SCHIZOPHRENIA, CHITINASE, ANTIPSYCHOTIC agents, NEUROIMMUNOLOGY
Abstract

Objective: Accumulating evidence implicates immune activation in the development of schizophrenia. Here, monocyte numbers, monocyte chemoattractant protein‐1 (MCP‐1) and chitinase‐3‐like protein 1 (YKL‐40) were investigated in plasma and cerebrospinal fluid (CSF) in first‐episode psychosis (FEP) patients. Method: CSF and blood were sampled from 42 first‐episode psychosis (FEP) patients and 22 healthy controls. The levels of YKL‐40 and MCP‐1 were measured using electrochemiluminescence assay, and blood monocytes were counted using an XN‐9000‐hematology analyzer. Results: We found higher plasma levels of MCP‐1 and YKL‐40 in FEP patients compared with healthy controls, a condition that was unrelated to antipsychotic and/or anxiolytic medication. This was combined with an increased number of blood monocytes and a borderline significant increase in YKL‐40 levels in the CSF of tobacco‐free FEP patients. Plasma or CSF chemokines or blood monocytes did not correlate with the severity of symptoms or the level of functioning. Conclusion: These data demonstrate activation of monocytes in FEP and strengthens the idea of an immune dysfunction of psychotic disorders. Further studies are required to perceive a role of YKL‐40 and MCP‐1 in the initiation and progression of schizophrenia. [ABSTRACT FROM AUTHOR]

Published
2018
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7. LOWER THALAMIC DOPAMINE D2-RECEPTOR BINDING IN DRUG-NAIVE PATIENTS WITH PSYCHOSIS – A REPLICATION STUDY USING POSITRON EMISSION TOMOGRAPHY.

Author

Victorsson, Pauliina, Plavén-Sigray, Pontus, Matheson, Granville, Santillo, Alexander, Lee, Maria, Collste, Karin, Fatouros-Bergman, Helena, Agartz, Ingrid, Halldin, Christer, Farde, Lars, and Cervenka, Simon

Subjects
CELL receptors, CONFERENCES & conventions, DOPAMINE, PSYCHOSES, THALAMUS, POSITRON emission tomography
Abstract

Background: The dopamine system is a central focus of research on the pathophysiology and treatment of schizophrenia. With regard to the dopamine D2-receptor (D2-R), Positron Emission Tomography (PET) studies have shown a small increase in striatal receptor availability. In contrast, a more recent line of research has demonstrated lower levels of D2-R (Cohen’s D = -0.32) in the thalamus, a region of key interest for the pathophysiology of schizophrenia. However, some studies included patients previously on antipsychotic medication, or were performed using radioligands with suboptimal affinity for the much lower D2-R density in thalamus compared to striatum. In addition, the resolution of previous PET systems has not allowed for a more detailed analysis of functional thalamic subregions. Here we examined a fully antipsychotic-naïve sample of first-episode psychosis patients using the high-affinity D2-R radioligand [11C]FLB457 and high-resolution PET. The aim was to a) replicate previous findings of lower D2-R in thalamus in patients and b) specifically examine patient-control differences in thalamic subregions based on their cortical connectivity. Methods: Nineteen antipsychotic-naïve first episode psychosis patients (mean age = 29.3; sd = 6.3, 11 males) and 19 age- and sex matched healthy comparison subjects were included in the analysis. PET measurements were obtained using a High Resolution Research Tomograph (HRRT). A ROI for whole thalamus was defined using the FSL Harvard Oxford Subcortical Atlas, whereas ROIs for thalamic subregions were based on the Oxford Thalamic Connectivity Atlas. Binding potential (BPND) was calculated using the Logan graphical analysis with cerebellum as reference region. The statistical analyses, which were all pre-registered, were performed using frequentist and Bayesian paired-samples t-tests. Results: The frequentist paired t-test showed that patients had significantly lower binding than control subjects in whole thalamus (Cohen’s D = -0.479, p = 0.026). Bayes factor from the Bayesian paired t-test indicated that there was approximately 5 times more support for the hypothesis of lower BPND in patients, compared to the null hypothesis of no difference. Among subregions, the ROI corresponding to prefrontal thalamic connectivity showed the largest effect (Cohen’s D = -0.527, p = 0.017), and Bayes factor indicated that there was 6 times more support for lower BPND in patients compared to no difference. Discussion: Using high resolution PET and a high affinity D2-R radioligand in antipsychotic-naïve first-episode psychosis patients, this study replicates the previously reported meta-analytical effect size of lower thalamic receptor availability in patients. The strongest effect was observed in the subregion dominated by connections to prefrontal cortex. The findings may reflect a dysregulation of the thalamic dopamine system in schizophrenia, which in turn could underlie aberrant functional connectivity in key fronto-thalamic circuits. [ABSTRACT FROM AUTHOR]

Published
2020
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