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2015
1 Bettum, Ingrid Johanne; Gorad, Saurabh Sayajirao; Barkovskaya, Anna; Pettersen, Solveig; Moestue, Siver Andreas; Vasiliauskaite, Kotryna; Tenstad, Ellen; Øyjord, Tove Ragnhild; Risa, Øystein; Nygaard, Vigdis; Mælandsmo, Gunhild; Prasmickaite, Lina.
Metabolic reprogramming supports the invasive phenotype in malignant melanoma. Cancer Letters 2015 ;Volum 366.(1) s. 71-83
NTNU OUS UiT UiO STO Untitled
 
2 Gorad, Saurabh Sayajirao; Bettum, Ingrid Johanne; Barkovskaya, Anna; Pettersen, Solveig; Moestue, Siver Andreas; Tenstad, Ellen; Øyjord, Tove Ragnhild; Risa, Øystein; Nygaard, Vigdis; Mælandsmo, Gunhild; Prasmickaite, Lina.
Melanoma cell plasticity enables invasiveness by de-differentiation and metabolic reprogramming. The Norwegian Biochemical Society 51st Contact Meeting; 2015-02-09 - 2015-02-13
NTNU OUS UiO UiT Untitled
 
2014
3 Romijn, Elisabeth Inge; Risa, Øystein; Goa, Pål Erik; Widerøe, Marius; Teruel, Jose Ramon; Lilledahl, Magnus Borstad.
Comparison of the collagen structure in articular cartilage measured by diffusion tensor imaging and multi-photon microscopy. Joint National PhD Conference in Medical Imaging and MedViz Conference in Bergen; 2014-06-17 - 2014-06-18
NTNU Untitled
 
2011
4 Grinde, Maria Tunset; Moestue, Siver Andreas; Borgan, Eldrid; Risa, Øystein; Engebraaten, Olav; Gribbestad, Ingrid S.
13C HR-MAS MR spektroskopi-analyser av brystkreftxenografter. Regional Forskningskonferanse HMN-NTNU; 2011-05-11 - 2011-05-12
NTNU OUS Untitled
 
5 Grinde, Maria Tunset; Moestue, Siver Andreas; Borgan, Eldrid; Risa, Øystein; Engebråten, Olav; Gribbestad, Ingrid S.
13C High-resolution-magic angle spinning MRS reveals differences in glucose metabolism between two breast cancer xenograft models with different gene expression patterns. NMR in Biomedicine 2011 ;Volum 24.(10) s. 1243-1252
NTNU OUS STO UiO Untitled
 
6 Kondziella, Daniel; Melø, Torun Margareta; Risa, Øystein; Henry, P. Gilles; Sonnewald, Ursula.
IN-VIVO 13C MR SPECTROSCOPY AND MR IMAGING IN RATS WITH KAOLIN-INDUCED HYDROCEPHALUS. European Journal of Neurology 2011 ;Volum 18. s. 567-567
NTNU Untitled
 
7 Lund, Trine M.; Obel, Linea F; Risa, Øystein; Sonnewald, Ursula.
beta-Hydroxybutyrate is the preferred substrate for GABA and glutamate synthesis while glucose is indispensable during depolarization in cultured GABAergic neurons. Neurochemistry International 2011 ;Volum 59.(2) s. 309-318
NTNU Untitled
 
8 Melø, Torun Margareta; Håberg, Asta; Risa, Øystein; Kondziella, Daniel; Henry, PG; Sonnewald, Ursula.
Tricarboxylic Acid Cycle Activity Measured by C-13 Magnetic Resonance Spectroscopy in Rats Subjected to the Kaolin Model of Obstructed Hydrocephalus. Neurochemical Research 2011 ;Volum 36.(10) s. 1801-1808
NTNU Untitled
 
2010
9 Grinde, Maria Tunset; Moestue, Siver Andreas; Borgan, Eldrid; Risa, Øystein; Engebraaten, Olav; Gribbestad, Ingrid S.
13C HR-MAS MRS reveals differences in glucose metabolism between two breast cancer xenograft models with different gene expression patterns. ISMRM Cancer Workshopo; 2010-09-19 - 2010-09-22
NTNU Untitled
 
10 Grinde, Maria Tunset; Moestue, Siver Andreas; Eldrid, Borgan; Risa, Øystein; Engebraaten, Olav; Gribbestad, Ingrid S.
13C HR MAS MRS reveals differences in the glucose metabolism between two breast cancer xenograft models with different gene expression pattern. International Society of Magnetic Resonance in Medicine (ISMRM); 2010-05-01 - 2010-05-07
NTNU Untitled
 
11 Grinde, Maria Tunset; Moestue, Siver Andreas; Eldrid, Borgan; Risa, Øystein; Engebraaten, Olav; Gribbestad, Ingrid S.
13C HR-MAS MRS reveals differences in glucose metabolism between two breast cancer xenograft models with different gene expression patterns. FUGE-seminar, Workshop: Karakterisering av brystkreft; 2010-09-01
NTNU STO Untitled
 
12 Meisingset, Tore Wergeland; Risa, Øystein; Brenner, M; Messing, A; Sonnewald, Ursula.
Alteration of Glial-Neuronal Metabolic Interactions in a Mouse Model of Alexander Disease. Glia 2010 ;Volum 58.(10) s. 1228-1234
NTNU Untitled
 
2009
13 Brenner, Eiliv; Eyjolfsson, Elvar M.; Risa, Øystein; Sonnewald, Ursula.
NMDA receptor hypofunction induced by MK-801: amino acid and monoamine homeostasis. Journal of Neurochemistry 2009 ;Volum 109. s. 294-294
NTNU Untitled
 
14 Eyjolfsson, Elvar M.; Brenner, Eiliv; Risa, Øystein; Sonnewald, Ursula.
Altered glutamatergic function in the chronic MK-801 model of schizophrenia. Journal of Neurochemistry 2009 ;Volum 109. s. 276-276
NTNU Untitled
 
15 Grinde, Maria Tunset; Moestue, Siver Andreas; Risa, Øystein; Engebråten, Olav; Gribbestad, Ingrid S.
HR MAS 13C MRS characterization of two breast cancer xenograft models. ESMRMB; 2009-10-01 - 2009-10-03
NTNU Untitled
 
16 Kondziella, Daniel; Eyjolfsson, Elvar M.; Sæther, Oddbjørn; Sonnewald, Ursula; Risa, Øystein.
GRAY MATTER METABOLISM IN ACUTE AND CHRONIC HYDROCEPHALUS. Neuroscience 2009 ;Volum 159.(2) s. 570-577
NTNU STO Untitled
 
17 Lund, Trine M.; Risa, Øystein; Sonnewald, Ursula; Schousboe, Arne; Waagepetersen, Helle S.
Availability of neurotransmitter glutamate is diminished when beta-hydroxybutyrate replaces glucose in cultured. Journal of Neurochemistry 2009 ;Volum 110.(1) s. 80-91
NTNU Untitled
 
18 Meisingset, Tore Wergeland; Risa, Øystein; Sonnewald, Ursula; Brenner, M; Messing, A.
How are glial-neuronal interactions altered by increasing expression of GFAP?. Journal of Neurochemistry 2009 ;Volum 110. Suppl. 1 s. 75-75
NTNU Untitled
 
19 Meisingset, Tore Wergeland; Risa, Øystein; Sonnewald, Ursula; Brenner, Michael; Messing, Albee.
how are glial neuronal interactions altered. Meeting of the European sociaty for neurochemistry; 2009-07-11 - 2009-07-14
NTNU Untitled
 
20 Meldgaard Lund, Trine; Risa, Øystein; Sonnewald, Ursula; Schousboe, Arne; Waagepetersen, Helle S.
ASPARTATE-GLUTAMATE HOMEOSTASIS IN CEREBELLAR NEURONS CHANGES WHEN SHIFTING FROM GLUCOSE TO β-HYDROXYBUTYRATE AS SUBSTRATE. Dansk Farmakologi møde; 2009-01-21
NTNU Untitled
 
21 Risa, Øystein; Melø, Torun Margareta; Sonnewald, Ursula.
Quantification of amounts and C-13 content of metabolites in brain tissue using high-resolution magic angle spinning C-13 NMR spectroscopy. NMR in Biomedicine 2009 ;Volum 22.(3) s. 266-271
NTNU Untitled
 
22 Shi, Qingli; Risa, Øystein; Sonnewald, Ursula; Gibson, Gary E..
Mild reduction in the activity of the alpha-ketoglutarate dehydrogenase complex elevates GABA shunt and glycolysis. Journal of Neurochemistry 2009 ;Volum 109. s. 214-221
NTNU Untitled
 
23 Sonnewald, Ursula; Shi, Qingli; Nilsen, Linn Hege; Risa, Øystein; Gibson, Gary E..
Mild reductions in the activity of the α-ketoglutarate dehydrogenase complex disturbs neuroactive amino acid homeostasis. European Society for Neurochemistry Conference on Molecular Mechanisms in Neurological Disorders; 2009-07-11 - 2009-07-14
NTNU Untitled
 
2008
24 Bogen, IL; Risa, O; Risa, Øystein; Haug, KH; Sonnewald, Ursula; Fonnum, F; Walaas, SI.
Distinct changes in neuronal and astrocytic amino acid neurotransmitter metabolism in mice with reduced numbers of synaptic vesicles. Journal of Neurochemistry 2008 ;Volum 105.(6) s. 2524-2534
NTNU UiO Untitled
 
25 Kondziella, D; Eyjolfsson, Elvar M.; Sonnewald, Ursula; Risa, Øystein.
Grey matter dysfunction in acute and chronic hydrocephalus. Journal of Neurology 2008 ;Volum 255. s. 199-200
NTNU Untitled
 
26 Kondziella, Daniel; Eyjolfsson, Elvar M.; Sæther, Oddbjørn; Sonnewald, Ursula; Risa, Øystein.
Gray matter metabolism in acute and chronic hydrocephalus. 18th Meeting of the Neurological Society; 2008-06-07 - 2008-06-11
NTNU Untitled
 
27 Lund, Trine; Risa, Øystein; Sonnewald, Ursula; Schousboe, Arne; Waagepetersen, Helle S.
Aspartate-glutamate homeostasis in cerebellar neurons changes when shifting from glucose to β-hydroxybutyrate as substrate. Brain Energy Meeting satelite of ISN; 2008-06-27 - 2008-07-01
NTNU Untitled
 
2007
28 Alvestad, Silje; Goa, Pål Erik; Qu, Hong; Risa, Øystein; Brekken, Christian; Sonnewald, Ursula; Haraldseth, Olav; Hammer, Janniche; Ottersen, Ole Petter; Håberg, Asta.
In vivo mapping of temporospatial changes in manganese enhancement in rat brain during epileptogenesis. NeuroImage 2007 ;Volum 38. s. 57-66
NTNU UiO Untitled
 
29 Alvestad, Silje; Goa, Pål Erik; Qu, Hong; Risa, Øystein; Brekken, Christian; Sonnewald, Ursula; Haraldseth, Olav; Hammer, Janniche; Ottersen, Ole Petter; Håberg, Asta.
In vivo mapping of temporospatial changes in rat brain during kainate induced epileptogenesis: a manganese enhanced magnetic resonance imaging (MEMRI) study. American Epilepsy Society, 61st Annual Meeting; 2007-11-30 - 2007-12-04
NTNU UiO Untitled
 
30 Lund, TM; Clausen, M; Risa, Øystein; Sonnewald, Ursula; Schousboe, Arne; Waagepetersen, Helle S..
beta-hydroxybutyrate and glucose metabolism is differently affected by neuronal activity. Journal of Neurochemistry 2007 ;Volum 102. s. 116-116
NTNU Untitled
 
31 Risa, Øystein; Melø, Torun Margareta; Sonnewald, Ursula.
Quantitative Measurement of Neurotransmitters in Rat Brain Tissue Using HR MAS 13C NMR Spectroscopy and the ERETIC Method. Joint annual meeting ISMRM-ESMRMB, 2007; 2007-05-19 - 2007-05-25
NTNU Untitled
 
2006
32 Risa, Øystein; Sonnewald, Ursula; Brenner, Michael; Messing, Albee.
Disturbance of the glutamate-glutamine cycle in mice with elevated glial fibrillary acidic protein (GFAP) concentrations. Brain energy meeting; 2006-08-16 - 2006-08-19
NTNU Untitled
 
33 Midelfart, Anna; Tessem, May-Britt; Fris, Miroslav; Sæther, Oddbjørn; Risa, Øystein; Bathen, Tone.
NMR analysis of ocular biochemical changes after exposure to UV radiation. Nordic Congress of Ophthalmology; 2006-06-16 - 2006-06-20
NTNU Untitled
 
34 Risa, Øystein.
In vivo 13C MRS in neurochemistry. MRI and MRS workshop in Gøteborg 2006; 2006-02-08 - 2006-02-10
NTNU Untitled
 
35 Sæther, Oddbjørn; Midelfart, Anna; Risa, Øystein; Haraldseth, Olav; Krane, Jostein.
Proton decoupled F-19 NMR spectroscopy of drugs used in eye treatment. Spectroscopy Letters 2006 ;Volum 39.(2) s. 135-144
NTNU STO Untitled
 
2005
36 Hammer, Janniche; Alvestad, Silje; Qu, Hong; Risa, Øystein; Osen, Karen; Ottersen, Ole Petter; Sonnewald, Ursula.
Glial-Neuronal Interactions during the latent and chorinc periods following kainate induced seizures in Rats. Journal of Neurochemistry 2005 ;Volum 94. Suppl. 2 s. 64-128-
NTNU Untitled
 
37 Hammer, Janniche; Alvestad, Silje; Qu, Hong; Risa, Øystein; Osen, Karen; Ottersen, Ole Petter; Sonnewald, Ursula.
Glial-neuronal interactions during the latent and chronic periods following kainate induced seizures in rats. International society of Neurochemistry/European Society of Neurochemistry meeting; 2005-08-21 - 2005-08-25
NTNU Untitled
 
38 Risa, Øystein; Sæther, Oddbjørn; Kakar, M. K.; Mody, Jr; Løfgren, Stefan; Søderberg, P.G.; Krane, Jostein; Midelfart, Anna.
Time dependency of metabolic changes in rat lens after in vivo UVB irradiation analysed by HR-MAS 1H NMR spectroscopy. Experimental Eye Research 2005 ;Volum 81. s. 407-414
NTNU Untitled
 
39 Sæther, Oddbjørn; Krane, Jostein; Risa, Øystein.
High-resolution MAS H-1 NMR spectroscopic analysis of rabbit cornea after treatment with dexamethasone and exposure to UV-B radiation. Current Eye Research 2005 ;Volum 30. s. 1041-1049
NTNU Untitled
 
40 Sæther, Oddbjørn; Krane, Jostein; Risa, Øystein; Cejkova, Jitka; Midelfart, Anna.
High-resolution MAS 1H NMR spectroscopic analysis of rabbit cornea after treatment with dexamethasone and exposure to UV-B radiation. Current Eye Research 2005 ;Volum 30.(12) s. 1041-1049
NTNU Untitled
 
2004
41 Midelfart, Anna; Risa, Øystein; Sæther, Oddbjørn; Tessem, May-Britt; Fris, M.; Søderberg, P.G.; Cejková, Jitka.
Metabolic changes in the anterior segment of the eye induced by UV irradiation and measured by NMR spectroscopy. Ophthalmic Research 2004 s. 103-
NTNU Untitled
 
42 Risa, Øystein.
Application of high-resolution NMR spectroscopy in metabolic studies of the eye. Trondheim: NTNU 2004 99 s.
NTNU Untitled
 
43 Sæther, Oddbjørn; Risa, Øystein; Cejková, Jitka; Krane, Jostein; Midelfart, Anna.
High-resolution magic angle spinning 1H NMR spectroscopy of metabolic changes in rabbit lens after treatement with dexamethasone combined with UVB exposure. Graefe's Archives for Clinical and Experimental Ophthalmology 2004 ;Volum 242. s. 1000-1007
NTNU Untitled
 
44 Risa, Øystein; Sæther, Oddbjørn; Løfgren, Stefan; Søderberg, P.G.; Krane, Jostein; Midelfart, Anna.
Metabolic changes in rat lens after in vivo exposure to ultraviolet irradiation: Measurements by high resolution MAS H-1 NMR spectroscopy. Investigative Ophthalmology and Visual Science 2004 ;Volum 45.(6) s. 1916-1921
NTNU Untitled
 
2003
45 Löfgren, Stefan; Kakar, M. K.; Risa, Øystein; Midelfart, Anna; Sæther, Oddbjørn; Krane, Jostein; Mody, Jr; Söderberg, Per.
Time dependency of in vivo ultraviolet radiation (UVR)-induced lens metabolic changes in the rat as analyzed by NMR spectroscopy. Investigative Ophthalmology & Visual Science; 2003-05-01
NTNU Untitled
 
46 Löfgren, Stefan; Kakar, M. K.; Risa, Øystein; Midelfart, Anna; Sæther, Oddbjørn; Krane, Jostein; Mody, Jr; Söderberg, Per.
Time Dependency of In Vivo Ultraviolet Radiation (UVR)-Induced Lens Metabolic Charnges in the Rat as Analyzed by NMR Spectroscopy. Arvo; 2003-05-09
NTNU Untitled
 
2002
47 Midelfart, Anna; Risa, Øystein; Sæther, Oddbjørn; Löfgren, Stefan; Söderberg, Per; Krane, Jostein.
Metabolic changes in rat lens after in vivo exposure to ultraviolet radiation measured by Magic Angle Spinning NMR spectroscopy. The Association for Research in Vision and opthalmology; 2002-05-10
NTNU Untitled
 
48 Midelfart, Anna; Risa, Øystein; Sæther, Oddbjørn; Löfgren, Stefan; Söderberg, Per; Krane, Jostein; Cejkova, Jitka.
Application of magic angle spinning NMR spectroscopy in study of metabolic processes in the anterior segment of the eye. Acta Ophthalmologica Scandinavica 2002 ;Volum 80. s. 678-
NTNU Untitled
 
49 Midelfart, Anna; Sæther, Oddbjørn; Risa, Øystein; Krane, Jostein; Cejkova, Jitka.
Study of metabolic changes in cornea and lens induced by UV radiation and steroids with mas NMR spectroscopy. XV Interantional Congress of Eye Research; 2002-10-10
NTNU Untitled
 
50 Midelfart, Anna; Sæther, Oddbjørn; Risa, Øystein; Löfgren, Stefan; Söderberg, Per; Krane, Jostein; Cejkova, Jitka.
Application of NMR spectroscopy in study of metabolic changes in the anterior segment of the eye. International symposium on cornea and contact lenses; 2002-12-10
NTNU Untitled
 
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