Search Results - "Nilsen, Tom O."

Ion Transporters and Osmoregulation in the Kidney of Teleost Fishes as a Function of Salinity by Takvam, Marius, Wood, Chris M, Kryvi, Harald, Nilsen, Tom O

“…Euryhaline teleosts exhibit major changes in renal function as they move between freshwater (FW) and seawater (SW) environments, thus tolerating large…”
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Role of the kidneys in acid-base regulation and ammonia excretion in freshwater and seawater fish: implications for nephrocalcinosis by Takvam, Marius, Wood, Chris M, Kryvi, H, Nilsen, Tom O

“…Maintaining normal pH levels in the body fluids is essential for homeostasis and represents one of the most tightly regulated physiological processes among…”
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Functional Divergence of Type 2 Deiodinase Paralogs in the Atlantic Salmon by Lorgen, Marlene, Casadei, Elisa, Król, Elżbieta, Douglas, Alex, Birnie, Mike J., Ebbesson, Lars O.E., Nilsen, Tom O., Jordan, William C., Jørgensen, Even H., Dardente, Hugues, Hazlerigg, David G., Martin, Samuel A.M.

“…Thyroid hormone (TH) is an ancestral signal linked to seasonal life history transitions throughout vertebrates. TH action depends upon tissue-localized…”
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Hypothalamic agrp and pomc mRNA Responses to Gastrointestinal Fullness and Fasting in Atlantic Salmon ( Salmo salar , L.) by Kalananthan, Tharmini, Murashita, Koji, Rønnestad, Ivar, Ishigaki, Mitsumasa, Takahashi, Kota, Silva, Marta S, Wakabayashi, Yuki, Lai, Floriana, Shimizu, Munetaka, Nilsen, Tom O, Pino Martinez, Enrique, Gomes, Ana S

“…The orexigenic agouti-related protein (AgRP) and the anorexigenic pro-opiomelanocortin (POMC) are crucial players in the control of feed intake in vertebrates,…”
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Evaluation of potential reference genes in real-time RT-PCR studies of Atlantic salmon by Olsvik, Pål A, Lie, Kai K, Jordal, Ann-Elise O, Nilsen, Tom O, Hordvik, Ivar

“…Salmonid fishes are among the most widely studied model fish species but reports on systematic evaluation of reference genes in qRT-PCR studies is lacking. The…”
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Sulfate homeostasis in Atlantic salmon is associated with differential regulation of salmonid‐specific paralogs in gill and kidney by Takvam, Marius, Denker, Elsa, Gharbi, Naouel, Kryvi, Harald, Nilsen, Tom O.

“…Sulfate (SO42‐) regulation is challenging for euryhaline species as they deal with large fluctuations of SO42‐ during migratory transitions between freshwater…”
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Comparison between Atlantic salmon Salmo salar post‐smolts reared in open sea cages and in the Preline raceway semi‐closed containment aquaculture system by Balseiro, Pablo, Moe, Øyvind, Gamlem, Ingrid, Shimizu, Munetaka, Sveier, Harald, Nilsen, Tom O., Kaneko, Nobuto, Ebbesson, Lars, Pedrosa, Cindy, Tronci, Valentina, Nylund, Are, Handeland, Sigurd O.

“…The use of closed containment (CCS) or semi‐closed containment systems (S‐CCS) for Atlantic salmon Salmo salar aquaculture is under evaluation in Norway. One…”
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Effects of cortisol on the intestinal mucosal immune response during cohabitant challenge with IPNV in Atlantic salmon (Salmo salar) by Niklasson, Lars, Sundh, Henrik, Olsen, Rolf-Erik, Jutfelt, Fredrik, Skjødt, Karsten, Nilsen, Tom O, Sundell, Kristina Snuttan

“…Infectious pancreatic necrosis virus (IPNV) causes high incidence of disease in salmonids during the first period after SW transfer. During this period as well…”
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Stress in Atlantic salmon: response to unpredictable chronic stress by Madaro, Angelico, Olsen, Rolf E, Kristiansen, Tore S, Ebbesson, Lars O E, Nilsen, Tom O, Flik, Gert, Gorissen, Marnix

“…Combinations of stressors occur regularly throughout an animal's life, especially in agriculture and aquaculture settings. If an animal fails to acclimate to…”
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How do individuals cope with stress? Behavioural, physiological and neuronal differences between proactive and reactive coping styles in fish by Vindas, Marco A, Gorissen, Marnix, Höglund, Erik, Flik, Gert, Tronci, Valentina, Damsgård, Børge, Thörnqvist, Per-Ove, Nilsen, Tom O, Winberg, Svante, Øverli, Øyvind, Ebbesson, Lars O E

“…Despite the use of fish models to study human mental disorders and dysfunctions, knowledge of regional telencephalic responses in non-mammalian vertebrates…”
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Changes in circulating insulin-like growth factor-1 and its binding proteins in yearling rainbow trout during spring under natural and manipulated photoperiods and their relationships with gill Na+, K+-ATPase and body size by Cui, Wenda, Takahashi, Eisuke, Morro, Bernat, Balseiro, Pablo, Albalat, Amaya, Pedrosa, Cindy, Mackenzie, Simon, Nilsen, Tom O., Sveier, Harald, Ebbesson, Lars O., Handeland, Sigurd O., Shimizu, Munetaka

“…Smoltification in salmonids occurs during spring in response to increasing photoperiod to prepare for marine life. Smoltification is associated with increased…”
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Smolting in anadromous and landlocked strains of Atlantic salmon ( Salmo salar) by Nilsen, Tom O., Ebbesson, Lars O.E., Stefansson, Sigurd O.

“…Juvenile Atlantic salmon from a landlocked population (‘Blege’, lake Byglandsfjord, south–central Norway) and an anadromous population (river Vosso,…”
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Effects of different photoperiod regimes on the smoltification and seawater adaptation of seawater-farmed rainbow trout (Oncorhynchus mykiss): Insights from Na+, K+–ATPase activity and transcription of osmoregulation and growth regulation genes by Morro, Bernat, Balseiro, Pablo, Albalat, Amaya, Pedrosa, Cindy, Mackenzie, Simon, Nakamura, Shu, Shimizu, Munetaka, Nilsen, Tom O., Sveier, Harald, Ebbesson, Lars O., Handeland, Sigurd O.

“…Photoperiod is thought to be the main zeitgeber that induces smoltification in salmonids. However, its effects on the smoltification of rainbow trout…”
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Sexual maturation and smoltification in domesticated Atlantic salmon (Salmo salar L.) – is there a developmental conflict? by Fjelldal, Per Gunnar, Schulz, Rüdiger, Nilsen, Tom O., Andersson, Eva, Norberg, Birgitta, Hansen, Tom Johnny

“…We present data from two experiments that examined how the developmental processes of smoltification and sexual maturation proceed in parallel in domesticated…”
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Molecular cloning and genomic characterization of novel Leptin-like genes in salmonids provide new insight into the evolution of the Leptin gene family by Angotzi, Anna R, Stefansson, Sigurd O, Nilsen, Tom O, Rathore, Raja M, Rønnestad, Ivar

“…Highlights • We identify novel leptin B duplicated genes in four salmonid species. • We reconstruct phylogenetic relationships among leptin genes. • We examine…”
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Effects of temperature and photoperiod on rainbow trout (Oncorhynchus mykiss) smoltification and haematopoiesis by Morro, Bernat, Balseiro, Pablo, Albalat, Amaya, MacKenzie, Simon, Pedrosa, Cindy, Nilsen, Tom O., Suzuki, Shotaro, Shimizu, Munetaka, Sveier, Harald, Gorissen, Marnix, Ebbesson, Lars O.E., Handeland, Sigurd O.

“…•nkaα1a, nkaα1b and nkcc1a provide relevant information that the NKA activity does not reflect.•While nkaα1a and nkcc1a transcription are mainly regulated by…”
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Differential expression of gill Na+,K+-ATPase alpha- and beta-subunits, Na+,K+,2Cl- cotransporter and CFTR anion channel in juvenile anadromous and landlocked Atlantic salmon Salmo salar by Nilsen, Tom O, Ebbesson, Lars O E, Madsen, Steffen S, McCormick, Stephen D, Andersson, Eva, Björnsson, Björn Th, Prunet, Patrick, Stefansson, Sigurd O

“…This study examines changes in gill Na(+),K(+)-ATPase (NKA) alpha- and beta-subunit isoforms, Na(+),K(+),2Cl(-) cotransporter (NKCC) and cystic fibrosis…”
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Identification of a novel leptin receptor duplicate in Atlantic salmon: expression analyses in different life stages and in response to feeding status by Angotzi, Anna R, Stefansson, Sigurd, Nilsen, Tom O, Øvrebø, Jan. I, Andersson, Eva, Taranger, Geir L, Rønnestad, Ivar

“…Highlights • A novel leptin receptor duplicate gene in Atlantic salmon (LepRA2 ) is identified. • LepRA1 and LepRA2 show similar electrostatic properties and…”
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Growth, osmoregulation and endocrine changes in wild Atlantic salmon smolts and post-smolts during marine migration by Stefansson, Sigurd O., Haugland, Monika, Björnsson, Björn Thrandur, McCormick, Stephen D., Holm, Marianne, Ebbesson, Lars O.E., Holst, Jens Chr, Nilsen, Tom O.

“…We have examined physiological parameters associated with seawater adaptability, growth and energetics, as well as major endocrine regulators of these…”
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Effects of acidic water and aluminum exposure on gill Na +, K +-ATPase α-subunit isoforms, enzyme activity, physiology and return rates in Atlantic salmon ( Salmo salar L.) by Nilsen, Tom O., Ebbesson, Lars O.E., Kverneland, Ole G., Kroglund, Frode, Finstad, Bengt, Stefansson, Sigurd O.

“…Na +, K +-ATPase (NKA) is involved, through its role as a major driving force for electrochemical gradients, in a range of transmembrane transport processes…”
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