Blar i Faculty of Medicine på forfatter "Fossan, Kjell Ove"
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Camptothecin and khat (Catha edulis Forsk.) induced distinct cell death phenotypes involving modulation of c-FLIPL, Mcl-1, procaspase-8 and mitochondrial function in acute myeloid leukemia cell lines
Bredholt, Therese; Dimba, Elizabeth A. O.; Hagland, Hanne; Wergeland, Line; Skavland, Jørn; Fossan, Kjell Ove; Tronstad, Karl Johan; Johannessen, Anne Christine; Vintermyr, Olav Karsten; Gjertsen, Bjørn Tore (Peer reviewed; Journal article, 2009-11-13)Background: An organic extract of the recreational herb khat (Catha edulis Forsk.) triggers cell death in various leukemia cell lines in vitro. The chemotherapeutics camptothecin, a plant alkaloid topoisomerase I inhibitor, ... -
Cross-reactivity of the CEDIA buprenorphine assay in drugs-of-abuse screening: influence of dose and metabolites of opioids
Berg, Jon Andsnes; Schjøtt, Jan; Fossan, Kjell Ove; Riedel, Bettina (Peer reviewed; Journal article, 2015-10-28)Purpose: The cloned enzyme donor immunoassay (CEDIA) for buprenorphine is applied for both urine drugs-of-abuse screening and compliance monitoring. Sensitivity, specificity, and optimal cutoff of this assay have differed ... -
Diazoxide protects against doxorubicin-induced cardiotoxicity in the rat
Hole, Lisa Drange; Larsen, Terje H.; Fossan, Kjell Ove; Limé, Fredrik; Schjøtt, Jan (Peer reviewed; Journal article, 2014-05-27)Aim: Chemotherapy with doxorubicin is limited by cardiotoxicity. Free radical generation and mitochondrial dysfunction are thought to contribute to doxorubicin-induced cardiac failure. In this study we wanted to investigate ... -
Illicit substances detected through high-resolution MS analysis in urine samples are associated with greater symptom burden in patients with psychosis
Skrede, Silje; Berg, Jon Andsnes; Fossan, Kjell Ove; Bartz-Johannessen, Christoffer; Løberg, Else-Marie; Kroken, Rune Andreas; Johnsen, Erik (Journal article, 2021)Background The prevalence of new psychoactive substances (NPS) in acute psychotic patients has not been investigated systematically. We applied a highly sensitive and specific mass spectrometry method for detection of NPS ... -
Morphine enhances doxorubicin-induced cardiotoxicity in the rat
Hole, Lisa Drange; Larsen, Terje H.; Fossan, Kjell Ove; Limé, Fredrik; Schjøtt, Jan (Peer reviewed; Journal article, 2014-09)Interventions to reduce the cardiotoxicity of doxorubicin are clinically relevant. Pharmacological preconditioning mimicking ischemic preconditioning has been demonstrated with morphine and represents an acceptable clinical ... -
A short-time model to study relevant indices of cardiotoxicity of doxorubicin in the rat
Hole, Lisa Drange; Larsen, Terje H.; Fossan, Kjell Ove; Limé, Fredrik; Schjøtt, Jan (Peer reviewed; Journal article, 2013-07)Aim: Short-time models (STM) to study the cardiotoxicity (acute or chronic) of doxorubicin in rats are of interest to assess protective interventions and pathways. STM promotes more ethical animal treatment with less stress, ... -
Ultrasound and Microbubbles Enhance Uptake of Doxorubicin in Murine Kidneys
Eikrem, Øystein Solberg; Kotopoulis, Spiros; Popa, Mihaela-Lucia; Safont, Mireia Mayoral; Fossan, Kjell Ove; Leh, Sabine; Landolt, Lea; Babickova, Janka; Gudbrandsen, Oddrun Anita; Gilja, Odd Helge; Riedel, Bettina Maria Ingeborg; Schjøtt, Jan Didrik; McCormack, Emmet; Marti, Hans-Peter (Journal article; Peer reviewed, 2021-11-29)The use of ultrasound and microbubble-enhanced drug delivery, commonly referred to as sonoporation, has reached numerous clinical trials and has shown favourable results. Nevertheless, the microbubbles and acoustic path ...