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Keywords: adrenaline
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Journal Articles
J Exp Biol (2018) 221 (8): JEB178194.
Published: 30 April 2018
... the resultant effects on cardiac output in anesthetized animals. Atrial ligation had no significant effects on total systemic blood flow before or after adrenaline injection. Unexpectedly, pulmonary flow was increased following atrial ligation prior to adrenaline treatment, but was unaffected after...
Journal Articles
J Exp Biol (2013) 216 (18): 3422–3432.
Published: 15 September 2013
.... Physiological levels of d -glucose did not influence twitch force development for aerobic preparations (1) paced at 0.5 or 1.1 Hz, (2) at 15 or 23°C, (3) receiving adrenergic stimulation or (4) during reoxygenation with or without adrenaline after severe hypoxia. Contractile responses to ryanodine, an inhibitor...
Journal Articles
J Exp Biol (2007) 210 (7): 1216–1224.
Published: 01 April 2007
... for rainbow trout Oncorhynchus mykiss and brown trout Salmo trutta at similar temperatures and with tonic adrenergic (5 nmol l –1 adrenaline) stimulation. For 22°C-acclimated sea bass, heart rate was significantly higher, but maximum stroke volume was reduced by 22% (1.05±0.05 ml kg –1 )compared with 18°C...
Journal Articles
J Exp Biol (2007) 210 (3): 421–431.
Published: 01 February 2007
... contribute to this bradycardia is unknown. We examined how temperature acclimation, oxygen deprivation,acidosis, hyperkalemia, hypercalcemia and adrenaline affect chronotropy in the turtle myocardium. We monitored spontaneous contraction rates of right-atrial preparations obtained from 21°C- and 5°C...
Journal Articles
J Exp Biol (2006) 209 (13): 2442–2451.
Published: 01 July 2006
... cardiac performance in the presence and absence of maximal adrenergic stimulation was assessed with in situ rainbow trout hearts using relevant hyperkalemic (5.0 mmol l –1 K + ), acidotic(pH 7.5) and hypoxic challenges. With tonic adrenergic stimulation (5.0 nmol l –1 adrenaline), hearts produced only...
Journal Articles
J Exp Biol (2006) 209 (10): 1956–1963.
Published: 15 May 2006
..., Python regius , the tegu lizard, Tupinanvis merianae , and the varanid lizard, Varanus exanthematicus . Force-frequency trials and imposed pauses were performed on ventricular and atrial tissue from each species with and without the SR inhibitor ryanodine, and in the absence and presence of adrenaline...
Journal Articles
J Exp Biol (2006) 209 (6): 1093–1100.
Published: 15 March 2006
... The Company of Biologists Limited 2006 2006 cardiovascular system adrenaline acetylcholine sympatho-vagal balance heart rate variability zebrafish Danio rerio In adult vertebrates cardiac activity and thus blood flow to the organ systems are mainly determined by the metabolic demand...
Journal Articles
J Exp Biol (2005) 208 (12): 2421–2431.
Published: 15 June 2005
... The Company of Biologists Limited 2005 2005 adrenaline noradrenaline catecholamine nitric oxide synthase stress chromaffin cell rainbow trout Oncorhynchus mykiss In teleost fish, the catecholamine hormones, adrenaline and noradrenaline,are synthesized, stored and released from...
Journal Articles
J Exp Biol (2003) 206 (23): 4247–4253.
Published: 01 December 2003
... release from the chromaffin tissue of the rainbow trout. Am. J. Physiol. 273 , R49 -R57. Bernier, N. J. and Perry, S. F. ( 1999 ). Cardiovascular effects of angiotensisn-II-mediated adrenaline release in rainbow trout Oncorhynchus mykiss. J. Exp. Biol. 202 , 55 -66. Fabbri, E., Capuzzo...
Journal Articles
J Exp Biol (2003) 206 (11): 1917–1927.
Published: 01 June 2003
...) are co-released with acetylcholine from preganglionic fibres upon nerve stimulation. Both VIP and PACAP elicit the secretion of exclusively adrenaline from rainbow trout chromaffin cells, which presumably arises from the activation of VPAC type receptors. Thus, the goals of the present study were (1...
Journal Articles
J Exp Biol (2001) 204 (23): 4169–4176.
Published: 01 December 2001
... release during acute hypoxia during periods of nicotinic receptor desensitisation.Despite nicotinic receptor desensitisation induced by intravenous infusion of nicotine (1.3×10 –5 mol kg –1 h –1 ), plasma catecholamine levels were increased to levels (adrenaline plus noradrenaline 125–200 nmol l –1...
Journal Articles
J Exp Biol (1992) 168 (1): 161–175.
Published: 01 July 1992
...SUSANNE HOLMGREN; MICHAEL AXELSSON; ANTHONY P. FARRELL The effects of adrenaline, noradrenaline, substance P and vasoactive intestinal polypeptide (VIP) on dorsal aortic blood pressure, coeliac artery blood flow and heart rate were studied in unrestrained dogfish, Squalus acanthias . Changes...
Journal Articles
J Exp Biol (1991) 155 (1): 549–566.
Published: 01 January 1991
... hypoxia were then assessed in vivo using nerve sectioning and pharmacological techniques and in situ using a perfused head kidney preparation. Pre-branchial plasma adrenaline concentrations were significantly elevated at all levels of aquatic hypoxia utilised [water P o 2 ( P W O 2 ) = 10 kPa (75 mmHg...