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Keywords: trout
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Journal Articles
J Exp Biol (2017) 220 (23): 4410–4417.
Published: 1 December 2017
.... Therefore, we assessed in rainbow trout hypothalamus the effects of raised levels of glucose on the levels and phosphorylation status of two transcription factors, FoxO1 and CREB, possibly involved in linking these processes. We also aimed to assess the changes in the levels and phosphorylation status...
Journal Articles
J Exp Biol (2016) 219 (21): 3480–3491.
Published: 1 November 2016
... fish and their hydrodynamic environment. This study investigated the space use of brown trout, Salmo trutta , in a complex hydrodynamic flow field created using an array of different sized vertically oriented cylinders in a large open-channel flume in which confounding variables were controlled...
Includes: Supplementary data
Journal Articles
J Exp Biol (2016) 219 (14): 2098–2102.
Published: 15 July 2016
...Paul L. Else ABSTRACT The thermal dependence (0–40°C) of Na + flux in isolated liver cells of three endotherms (mice, rat and rabbit) was compared with that of ectotherms in the form of a thermally tolerant amphibian (cane toad), a cold-water fish (rainbow trout) and a thermophilic reptile (lizard...
Journal Articles
J Exp Biol (2013) 216 (23): 4435–4442.
Published: 1 December 2013
...), arginine vasotocin (AVT), adrenocorticotropic hormone (ACTH) and corticosteroids. In this study, we show for the first time in teleost fish (rainbow trout) the short- and mid-term time course of the response of the forebrain serotonergic and dopaminergic activities after exposure to an acute stressor...
Includes: Supplementary data
Journal Articles
J Exp Biol (2013) 216 (19): 3742–3750.
Published: 1 October 2013
... pathway in the growth and development of skeletal muscle in teleost fish, transgenic rainbow trout (RBT; Oncorhynchus mykiss ) expressing a truncated form of the acvr2b-2a ( acvr2b ▵ ) in muscle tissue were produced. High levels of acvr2b ▵ expression were detected in the majority of P1 transgenic fish...
Journal Articles
J Exp Biol (2012) 215 (17): 2969–2979.
Published: 1 September 2012
...Jorge J. Pérez-Maceira; María J. Mancebo; Manuel Aldegunde SUMMARY In this study, we evaluated the serotonin-mediated control of cerebral glycogen levels in the rainbow trout, Oncorhynchus mykiss . Intracerebroventricular (i.c.v.) administration of serotonin (5-HT) to normoglycemic trout (time...
Journal Articles
J Exp Biol (2012) 215 (17): 3112–3119.
Published: 1 September 2012
...Marta Conde-Sieira; Marcos A. López Patiño; Jesús M. Míguez; José L. Soengas SUMMARY To assess whether the glucosensing capacity in peripheral (liver and Brockmann bodies) and central (hypothalamus and hindbrain) locations of rainbow trout displays day–night variations in its response to changes...
Journal Articles
J Exp Biol (2011) 214 (22): 3887–3894.
Published: 15 November 2011
...Marta Conde-Sieira; Marta Librán-Pérez; Marcos A. López Patiño; Jesús M. Míguez; José L. Soengas SUMMARY Stress conditions induced in rainbow trout a readjustment in the glucosensing response of the hypothalamus and hindbrain such that those sensors did not respond properly to changes in glucose...
Journal Articles
J Exp Biol (2010) 213 (22): 3858–3865.
Published: 15 November 2010
...) and anorexigenic (POMC, CART and CRF) peptides in central glucosensing areas (hypothalamus and hindbrain) of rainbow trout subjected to normoglycaemic (control), hypoglycaemic (4 mg insulin kg –1 ) or hyperglycaemic (500 mg glucose kg –1 ) conditions for 6 h under normal stocking density (NSD; 10 kg fish mass m –3...
Journal Articles
J Exp Biol (2010) 213 (7): 1049–1059.
Published: 1 April 2010
...C. Michele Nawata; Chris M. Wood; Michael J. O'Donnell SUMMARY Recent experimental evidence from rainbow trout suggests that gill ammonia transport may be mediated in part via Rhesus (Rh) glycoproteins. In this study we analyzed the transport properties of trout Rh proteins (Rhag, Rhbg1, Rhbg2...
Journal Articles
J Exp Biol (2010) 213 (5): 831–841.
Published: 1 March 2010
...E. M. Standen SUMMARY Contrary to the previous premise that pelvic fins lacked obvious function, recent work on three-dimensional fin motions suggests that pelvic fins actively control stability and speed in slowly swimming trout. This study used electromyography to measure pelvic fin muscle...
Journal Articles
J Exp Biol (2007) 210 (13): 2346–2351.
Published: 1 July 2007
...Mònica Díaz; Encarnación Capilla; Josep V. Planas SUMMARY In brown trout, red and white skeletal muscle express the insulin-regulatable glucose transporter 4 (btGLUT4). We have previously shown that the mRNA expression of btGLUT4 in red muscle, but not white muscle, is altered under experimental...
Journal Articles
J Exp Biol (2007) 210 (2): 325–339.
Published: 15 January 2007
... to roll. In this paper we examine the hydrodynamics of trout anal fin function and hypothesize that anal fins,located below the fish's rolling axis, produce similar jets to the dorsal fin and help balance rolling torques during swimming. We simultaneously quantify the wake generated by dorsal and anal...
Journal Articles
J Exp Biol (2006) 209 (16): 3234–3240.
Published: 15 August 2006
..., but its existence and function in non-mammalian non-vascular smooth muscle have not been examined. In the present study we examined H 2 S production and its physiological effects in urinary bladder from steelhead and rainbow trout ( Oncorhynchus mykiss ) and evaluated the relationship between H 2 S...
Journal Articles
J Exp Biol (2006) 209 (6): 1147–1156.
Published: 15 March 2006
... of the preovulatory oocyte has ever been reported in rainbow trout ( Oncorhynchus mykiss ). In the present study, oocyte water content and dry mass were monitored using consecutive samples taken in vivo from the same female rainbow trout,from 4–5 days prior to ovulation to up to 7 days post-ovulation. In addition...
Journal Articles
J Exp Biol (2005) 208 (22): 4283–4290.
Published: 15 November 2005
.... No study to date has examined the thermally induced compositional changes of raft and non-raft regions of the PM separately. In this study we have measured the phospholipid class composition and fatty acid composition of raft-enriched (raft) and raft-depleted PM (RDPM) of hepatocytes from trout...
Includes: Supplementary data
Journal Articles
J Exp Biol (2005) 208 (7): 1329–1335.
Published: 1 April 2005
... performance parameter. Performance parameters that only weakly or linearly affect efficiency are less likely to bring about a drastic increase in efficiency. In order to explain the remarkable difference in cost of transport between eel and trout, it is important to identify the processes that cause...
Journal Articles
J Exp Biol (2005) 208 (5): 929–938.
Published: 1 March 2005
...Jeremy A. Goldbogen; Robert E. Shadwick; Douglas S. Fudge; John M. Gosline SUMMARY Muscle length changes of the lateral myotomal fast fibers of rainbow trout( Oncorhynchus mykiss ) were measured using sonomicrometry during induced fast-starts. Simultaneous high-speed videography allowed...
Journal Articles
J Exp Biol (2004) 207 (15): 2679–2684.
Published: 1 July 2004
... by interacting with key regulators of the cell cycle. In order to determine the role of Id-encoding genes during fish development and especially in early myogenesis, we examined the expression patterns of Id1, Id2 and two nonallelic Id6 (Id6a and Id6b)-encoding genes in developing trout embryos. These four Id...
Journal Articles
J Exp Biol (2004) 207 (8): 1369–1377.
Published: 15 March 2004
...Anna Llach; Jingbo Huang; Franklin Sederat; Lluis Tort; Glen Tibbits; Leif Hove-Madsen SUMMARY Long depolarizations cause a steady tonic contraction and induce sarcoplasmic reticulum (SR) Ca 2+ -uptake in trout atrial myocytes. Simultaneous measurements of cytosolic [Ca 2+ ]([Ca 2+ ] i ) and whole...