Blar i Bergen Open Research Archive på forfatter "Torsvik, Anja"
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Depression trajectories and cytokines in schizophrenia spectrum disorders - A longitudinal observational study
Hoprekstad, Gunnhild Eldhuset; Kjelby, Eirik; Gjestad, Rolf; Fathian, Farivar; Larsen, Tor Ketil; Reitan, Solveig Klæbo; Rettenbacher, Maria; Torsvik, Anja; Skrede, Silje; Johnsen, Erik; Kroken, Rune Andreas (Journal article; Peer reviewed, 2023)Depression occurs frequently in all phases of schizophrenia spectrum disorders. Altered activity in the immune system is seen in both depression and schizophrenia. We aimed to uncover depressive trajectories in a sample ... -
Differences in white blood cell proportions between schizophrenia cases and controls are influenced by medication and variations in time of day
Villar, Jonelle Marie Dickow; Stavrum, Anne-Kristin Støbakk; Nery Spindola, Leticia Maria; Torsvik, Anja; Bjella, Thomas; Steen, Nils Eiel; Djurovic, Srdjan; Andreassen, Ole; Steen, Vidar Martin; Hellard, Stephanie Francoise Claire Le (Journal article; Peer reviewed, 2023)Cases with schizophrenia (SCZ) and healthy controls show differences in white blood cell (WBC) counts and blood inflammation markers. Here, we investigate whether time of blood draw and treatment with psychiatric medications ... -
Expression of the progenitor marker NG2/CSPG4 predicts poor survival and resistance to ionising radiation in glioblastoma
Svendsen, Agnete; Verhoeff, Joost J. C.; Immervoll, Heike; Brøgger, Jan C.; Kmiecik, Justyna; Poli, Aurélie; Netland, Inger A.; Planagumà, Jesús; Torsvik, Anja; Sakariassen, Per Øystein; Bjerkvig, Rolf; Enger, Per Øyvind; Tronstad, Karl Johan (Peer reviewed; Journal article, 2011-08-24)Glioblastoma (GBM) is a highly aggressive brain tumour, where patients respond poorly to radiotherapy and exhibit dismal survival outcomes. The mechanisms of radioresistance are not completely understood. However, cancer ... -
Is elevated neutrophil count and neutrophil-to-lymphocyte ratio a cause or consequence of schizophrenia?—a scoping review
Sandberg, Asbjørn Arnesen; Steen, Vidar Martin; Torsvik, Anja (Journal article; Peer reviewed, 2021)Background: Several studies have found an association between elevated neutrophil count or neutrophil-to-lymphocyte ratio (NLR) in peripheral blood from patients with schizophrenia. The etiology behind this effect is ... -
Patients with schizophrenia and bipolar disorder display a similar global gene expression signature in whole blood that reflects elevated proportion of immature neutrophil cells with association to lipid changes
Torsvik, Anja; Brattbakk, Hans-Richard; Trentani, Andrea; Holdhus, Rita; Stansberg, Christine; Bartz-Johannessen, Christoffer; Hughes, Timothy; Steen, Nils Eiel; Melle, Ingrid; Djurovic, Srdjan; Andreassen, Ole; Steen, Vidar Martin (Journal article; Peer reviewed, 2023)Schizophrenia (SCZ) and bipolar disorder (BD) share clinical characteristics, genetic susceptibility, and immune alterations. We aimed to identify differential transcriptional patterns in peripheral blood cells of patients ... -
Runaway multi-allelic copy number variation at the α-defensin locus in African and Asian populations
Hughes, Timothy; Hansson, Lars; Akkouh, Ibrahim; Hajdarevic, Riad; Bringsli, Jorunn; Torsvik, Anja; Inderhaug, Elin; Steen, Vidar Martin; Djurovic, Srdjan (Journal article; Peer reviewed, 2020-06-04)Alpha defensins are anti-microbial peptides of the innate immune system. The defensin A1 and A3 genes are located in a repeat array of variable copy number (the DEFA1A3 locus) and encode the human neutrophil peptides 1, 2 ... -
U-251 revisited: genetic drift and phenotypic consequences of long-term cultures of glioblastoma cells
Torsvik, Anja; Stieber, Daniel; Enger, Per Øyvind; Golebiewska, Anna; Molven, Anders; Svendsen, Agnete; Westermark, Bengt; Niclou, Simone P.; Olsen, Thale Kristin; Chekenya, PhD, Dr Philos, Dr. Martha; Bjerkvig, Rolf (Peer reviewed; Journal article, 2014-08)It is well known that in vitro subculture represents a selection pressure on cell lines, and over time this may result in a genetic drift in the cancer cells. In addition, long-term cultures harbor the risk of cross-contamination ...