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Ø. Tøien · SciRah

Researcher profile · Semantic Scholar

Ø. Tøien

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Ø. Tøien — researcher profile on SciRah

h-index: 21
Works: 38
Citations: 2,084

Most-cited papers

Hibernation in Black Bears: Independence of Metabolic Suppression from Body Temperature
Ø. Tøien, J. Blake, D. M. Edgar, D. Grahn +2 more
2011Science424 citations
Semantic Scholar
Ascorbate dynamics and oxygen consumption during arousal from hibernation in Arctic ground squirrels.
Ø. Tøien, K. Drew, M.-L. Chao, M. Rice
2001American Journal of Physiology. Regulatory Integrative and Comparative Physiology170 citations Open access
Semantic Scholar
Absence of cellular stress in brain after hypoxia induced by arousal from hibernation in Arctic ground squirrels.
Yi-Long Ma, Xiong-Wei Zhu, P. M. Rivera, Ø. Tøien +4 more
2005American Journal of Physiology. Regulatory Integrative and Comparative Physiology133 citations
Semantic Scholar
Phenological variation in annual timing of hibernation and breeding in nearby populations of Arctic ground squirrels
M. Sheriff, G. Kenagy, M. Richter, Trixie N. Lee +4 more
2011Proceedings of the Royal Society of London. Biological Sciences120 citations Open access
Semantic Scholar
The Physiological Link between Metabolic Rate Depression and Tau Phosphorylation in Mammalian Hibernation
J. Stieler, Torsten Bullmann, Franziska Kohl, Ø. Tøien +4 more
2011PLoS ONE117 citations Open access
Semantic Scholar
Season primes the brain in an arctic hibernator to facilitate entrance into torpor mediated by adenosine A1 receptors
Tulasi R. Jinka, Ø. Tøien, K. Drew
2011Journal of Neuroscience115 citations Open access
Semantic Scholar
Elevated expression of protein biosynthesis genes in liver and muscle of hibernating black bears (Ursus americanus).
V. Fedorov, Anna V Goropashnaya, Ø. Tøien, Nathan C. Stewart +9 more
2009Physiological Genomics114 citations Open access
Semantic Scholar
Modulation of gene expression in heart and liver of hibernating black bears (Ursus americanus)
V. Fedorov, Anna V Goropashnaya, Ø. Tøien, Nathan C. Stewart +6 more
2011BMC Genomics107 citations Open access
Semantic Scholar
Energetics of arousal episodes in hibernating arctic ground squirrels
Shawna Karpovich, Ø. Tøien, C. Buck, B. Barnes
2009Journal of Comparative Physiology □ B105 citations
Semantic Scholar
Hibernation and seasonal fasting in bears: the energetic costs and consequences for polar bears
C. T. Robbins, Claudia Lopez-Alfaro, K. Rode, Ø. Tøien +1 more
201292 citations
Semantic Scholar
Metabolic Rate and Prehibernation Fattening in Free-Living Arctic Ground Squirrels
M. Sheriff, Robert W. Fridinger, Ø. Tøien, B. Barnes +1 more
2013Physiological and Biochemical Zoology91 citations
Semantic Scholar
Role of the antioxidant ascorbate in hibernation and warming from hibernation.
K. Drew, Ø. Tøien, P. M. Rivera, M. Smith +2 more
2002Comparative biochemistry and physiology. Toxicology & pharmacology : CBP81 citations
Semantic Scholar
Thermoregulation and energetics in hibernating black bears: metabolic rate and the mystery of multi-day body temperature cycles
Ø. Tøien, J. Blake, B. Barnes
2015Journal of Comparative Physiology □ B68 citations
Semantic Scholar
Comparative functional genomics of adaptation to muscular disuse in hibernating mammals
Vadim B. Fedorov, Anna V Goropashnaya, Nathan C. Stewart, Ø. Tøien +6 more
2014Molecular Ecology63 citations Open access
Semantic Scholar
Data logging of body temperatures provides precise information on phenology of reproductive events in a free-living arctic hibernator
C. Williams, M. Sheriff, J. Schmutz, Franziska Kohl +3 more
2011Journal of Comparative Physiology □ B53 citations
Semantic Scholar
Thermogenic Capacity at Subzero Temperatures: How Low Can a Hibernator Go?
M. Richter, C. Williams, T. N. Lee, Ø. Tøien +3 more
2014Physiological and Biochemical Zoology44 citations
Semantic Scholar
Preservation of bone mass and structure in hibernating black bears (Ursus americanus) through elevated expression of anabolic genes
V. Fedorov, Anna V Goropashnaya, Ø. Tøien, Nathan C. Stewart +7 more
2012Functional & Integrative Genomics31 citations Open access
Semantic Scholar
Participation of breast and leg muscles in shivering thermogenesis in young turkeys and guinea fowl
Maurine W. Dietz, Sijmen van Mourik, Ø. Tøien, P. Koolmees +1 more
1997Journal of Comparative Physiology □ B23 citations
Semantic Scholar
Thermoregulatory responses to egg cooling in incubating bantam hens
Ø. Tøien, A. Aulie, J. B. Steen
1986Journal of Comparative Physiology □ B22 citations
Semantic Scholar
Automated open flow respirometry in continuous and long-term measurements: design and principles.
Ø. Tøien
2013Journal of applied physiology21 citations
Semantic Scholar
Genomic analysis of expressed sequence tags in American black bear Ursus americanus
Sen Zhao, Chunxuan Shao, Anna V Goropashnaya, Nathan C. Stewart +5 more
2010BMC Genomics21 citations Open access
Semantic Scholar
Threshold for shivering in aerobic and anaerobic muscles in bantam cocks and incubating hens
A. Aulie, Ø. Tøien
2004Journal of Comparative Physiology □ B21 citations
Semantic Scholar
Transcriptional changes and preservation of bone mass in hibernating black bears
Anna V Goropashnaya, Ø. Tøien, Thiruvarangan Ramaraj, A. Sundararajan +4 more
2021Scientific Reports16 citations Open access
Semantic Scholar
Stable isotope analysis of CO2 in breath indicates metabolic fuel shifts in torpid arctic ground squirrels.
Trixie N. Lee, M. Richter, C. Williams, Ø. Tøien +3 more
2017Comparative biochemistry and physiology. Part A, Molecular & integrative physiology9 citations Open access
Semantic Scholar
Transcriptome Remodeling and Adaptive Preservation of Muscle Protein Content in Hibernating Black Bears
Vadim B. Fedorov, A. Garreau, Ø. Tøien, Brian M. Barnes +1 more
2025Ecology and Evolution7 citations Open access
Semantic Scholar
Remodelling of skeletal muscle myosin metabolic states in hibernating mammals
Christopher T. A. Lewis, E. Melhedegaard, Marija M Ognjanovic, Mathilde S Olsen +19 more
2023bioRxiv6 citations Open access
Semantic Scholar
Do bears hibernate in the woods? Comment on ‘Why bears hibernate? Redefining the scaling energetics of hibernation’
Ø. Tøien, B. Barnes, T. Ruf
2022Proceedings of the Royal Society B3 citations Open access
Semantic Scholar
Absence of Cellular Stress in Brain Following Hypoxia Induced by Arousal from Hibernation in Arctic Ground Squirrels
Yi-Long Ma, Xiong-Wei Zhu, P. M. Rivera, Ø. Tøien +4 more
20053 citations
Semantic Scholar
Harnessing Hibernation: Unlocking Nature’s Secrets for Advances in Healthy Aging, Critical Care and Space Exploration
Kelly L. Drew, Vadim B. Fedorov, K. Duddleston, Ø. Tøien
2025Annals of the New York Academy of Sciences2 citations
Semantic Scholar
Transcriptome remodeling and adaptive preservation of muscle protein content in hibernating black bears
Vadim B. Fedorov, A. Garreau, Ø. Tøien, Brian M. Barnes +1 more
2025bioRxiv2 citations Open access
Semantic Scholar
Potential Mechanisms of Metabolic SuppressionDownstream of Central A1AR Activation During Onset of Torpor
Tulasi R. Jinka, Zachary A. Barrickman, Lori K. Bogren, Trixie N. Lee +7 more
20122 citations
Semantic Scholar
Dynamics of heat transfer to cold eggs in incubating bantam hens and a black grouse
Ø. Tøien
1993Journal of Comparative Physiology □ B2 citations
Semantic Scholar
Cardiovascular Autonomic Control During Hibernation in American Black Bears
Ø. Tøien, Chao-Yin Chen, H. C. Heller, Brian M. Barnes
2024Physiology1 citations
Semantic Scholar
Metabolic adaptations to hypothermia in snipe hatchings (Gallinago media)
J. B. Steen, Ø. Tøien, P. Fiske
1991Journal of Comparative Physiology □ B1 citations
Semantic Scholar
Integrating Proteomics and Biochemical Assays to Characterize Mitochondrial Succinate Dehydrogenase Activity in Hibernating Black Bears
Nivedita Menon, K. O’Brien, Ø. Tøien, Madelyn Brennan +1 more
2026Physiology0 citations
Semantic Scholar
Multi-organ citrate synthase activity suggests potential change in mitochondrial density during hibernation in black bear kidney tissue
Nivedita Menon, Madelyn Brennan, Jenna DiFolco, Ø. Tøien +2 more
2026Physiology0 citations
Semantic Scholar
Automating Polysomnography in an Under-Explored Animal Model: Preliminary Results from Hibernating Bears
Ø. Tøien, E. Pittaras, Yi-Ge Huang, Paul J. N. Brodersen +3 more
2024Physiology0 citations
Semantic Scholar
Transcriptional Changes and Preservation of Muscle Protein Content in Hibernating Black Bears
Vadim B. Fedorov, A. Garreau, Ø. Tøien, Brian M. Barnes +1 more
2024Physiology0 citations
Semantic Scholar

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