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Keywords: hypothermia
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Journal Articles
J Exp Biol (2022) 225 (2): jeb243208.
Published: 27 January 2022
... by The Company of Biologists Ltd 2022 Editor's Choice: Three hummingbird species are capable of a temperature spectrum from normothermy to torpor, implying that some birds, at least, can precisely control their metabolic state. Body temperature Torpor Metabolism Hypothermia Avian Mammals...
Includes: Supplementary data
Journal Articles
J Exp Biol (2019) 222 (2): jeb160606.
Published: 25 January 2019
.... After long periods of hypothermia and slow heart rates during torpor, hibernating mammals produce melatonin when they arouse ( Florant et al., 1984 ; Larkin et al., 2003 ; Stanton et al., 1986 ). Melatonin is an ancient molecule that is found in cyanobacteria ( Manchester et al., 2015 ), and its...
Journal Articles
J Exp Biol (2013) 216 (11): 2140–2149.
Published: 1 June 2013
... regulation of blood flow and volume in hamsters arousing from hibernation . Am. J. Physiol.   289 , R554 - R562 . Sabharwal   R. , Coote   J. H. , Johns   E. J. , Egginton   S. ( 2004a ). Effect of hypothermia on baroreflex control of heart rate and renal sympathetic nerve activity...
Includes: Supplementary data
Journal Articles
J Exp Biol (2012) 215 (17): 3087–3095.
Published: 1 September 2012
...Shun Maekawa; Hitomi Iemura; Yuko Kuramochi; Nami Nogawa-Kosaka; Hironori Nishikawa; Takehito Okui; Youichi Aizawa; Takashi Kato SUMMARY Diminished erythrocyte count and erythropoiesis have been reported during hypothermia in some ectothermic animals. In this study, the African clawed frog, Xenopus...
Journal Articles
J Exp Biol (2011) 214 (18): 3021–3031.
Published: 15 September 2011
...David Hauton; Shaun May; Rasna Sabharwal; Durmus Deveci; Stuart Egginton SUMMARY The consequences of acute hypothermia include impaired cardiovascular performance, ultimately leading to circulatory collapse. We examined the extent to which this results from intrinsic limitations to cardiac...
Includes: Supplementary data
Journal Articles
J Exp Biol (2011) 214 (8): 1276–1282.
Published: 15 April 2011
... torpor hypothermia lung remodeling Mesocricetus auratus Hibernation, the state of metabolic depression and inactivity in animals during winter, is a phenomenon that is observed in many mammals, including primates ( Dausmann et al., 2004 ). Hibernation of small rodents is characterized...
Journal Articles
J Exp Biol (2009) 212 (19): 3068–3075.
Published: 1 October 2009
... showed that hypothermia of this magnitude can lead to a reduction of some 30% in energy expenditure compared with birds remaining normothermic. Our data suggest that by reducing the T b – T a gradient, blackcaps accelerate their rate of fuel accumulation at a stopover. When body energy reserves are low...
Journal Articles
J Exp Biol (2006) 209 (22): 4566–4573.
Published: 15 November 2006
... but is under endogenous control, preparing the organism well in advance of seasonal energetic demands. * Author for correspondence (e-mail: walter.arnold@vu-wien.ac.at ) 8 9 2006 © The Company of Biologists Limited 2006 2006 hypometabolism hypothermia metabolic rate winter...
Journal Articles
J Exp Biol (2004) 207 (18): 3155–3162.
Published: 15 August 2004
.... Globus, M. Y., Alonso, O., Dietrich, W. D., Busto, R. and Ginsberg, M. D. ( 1995 ). Glutamate release and free radical production following brain injury: effects of posttraumatic hypothermia. J. Neurochem. 65 , 1704 -1711. Harris, M. B. and Milsom, W. K. ( 1995 ). Parasympathetic influence...
Journal Articles
J Exp Biol (2004) 207 (18): 3243–3249.
Published: 15 August 2004
.... The enthusiasm for potassium channels as a strategy for stroke treatment may be dampened by these considerations. Hypothermia may be one of our most valuable clinical tools in the search for treatments for brain ischemia. All known hypoxia-tolerant neurons tolerate and benefit substantially from...
Journal Articles
J Exp Biol (2004) 207 (9): 1543–1552.
Published: 1 April 2004
... throughout incubation, making them susceptible to fluctuations in body temperature dictated by the incubation environment (Tazawa et al., 1988 , 1989 ; Whittow and Tazawa, 1991 ). One of the primary and most obvious impacts of chronic hypothermia on poikilotherms is a slowing of physiological rates...
Journal Articles
J Exp Biol (2001) 204 (18): 3171–3181.
Published: 15 September 2001
...R. G. Boutilier SUMMARY Most animals experience some degree of hypoxia and hypothermia during the course of their natural life history either as a consequence of ambient ‘exposure’ per se or through metabolic, respiratory and/or circulatory insufficiency. A prevailing experimental approach has been...
Journal Articles
J Exp Biol (1992) 165 (1): 111–120.
Published: 1 April 1992
...CHRIS JENSEN; CLAUS BECH Ventilatory control of the composition of the gases in the air sacs was studied during entry into fasting-induced, shallow, nocturnal hypothermia in the domestic pigeon ( Columba livia ). Respiratory frequency ( f ), tidal volume ( V T ) and oxygen uptake ( V O O2 were...