... 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...

... min. RBM3 -mediated neuroprotection was seen when mice re-warmed after hypothermia, but did not occur in RBM3 -knockdown mice, indicating the importance of the RBM3 protein rather than some other hypothermic effect on neuroprotection ( Peretti et al., 2015 ). This observation in mice resembles...

... and wrote the manuscript. COMPETING INTERESTS No competing interests declared. 15 8 2012 19 2 2013 © 2013. Published by The Company of Biologists Ltd 2013 hibernator cardiac function hypotension hypothermia capillarity Thermal stress, associated...

...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...

...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...

... organs and the strategies adopted to cope with these ( Carey et al., 2003 ). In these studies, a main focus has been to identify mechanisms that these animals employ to protect their internal organs from injury during hypothermia and rewarming ( Bouma et al., 2010 ; Henning et al., 2002 ; Sandovici et...

... 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...

.... hypometabolism hypothermia metabolic rate winter adaptation body temperature regulation. © The Company of Biologists Limited 2006 2006 8 9 2006 * Author for correspondence (e-mail: [email protected] ) Lower levels of LA during winter contributed to a halving of f H...

... stress associated with arousal thermogenesis. * Author for correspondence (e-mail: [email protected] ) 26 5 2004 © The Company of Biologists Limited 2004 2004 hibernation ischemia JNK/SAPK inflammation reoxygenation hypothermia antioxidant defense metabolic suppression...

... -689. Hochachka, P. ( 1986 ). Defense strategies against hypoxia and hypothermia. Science 231 , 234 -241. Hochachka, P., Buck, L., Doll, C. and Land, S. ( 1996 ). Unifying theory of hypoxia tolerance: Molecular/metabolic defense and rescue mechanisms for surviving oxygen lack. Proc. Natl...

... chicken embryo Gallus domesticus thermoregulation hypothermia incubation development heterokairy The developing chicken embryo is a poikilotherm, and consequently any decrease in ambient temperature precipitates a series of cascading events:embryo temperature follows the decline in ambient...

...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...

... the rate of pre-migratory fattening, the energy saved as a result of this hypothermia reduces the rate at which fat is used and thus enables its more rapid replacement following and, possibly during, migration. The energy saved may also be used for the replacement of non-fat tissues such as the locomotory...

...Erica L. Wagner; David A. Scholnick; Todd T. Gleeson ABSTRACT We conducted this study to determine whether two of the physiological changes associated with non-sustainable exercise, elevated blood lactate levels and decreased arterial pH, contribute to the behavioral hypothermia exhibited...

... of Biologists 1993 heart coronary flow hibernation hypothermia rat ground squirrel left ventricular systolic pressure Spermophilus lateralis Each animal received 500i.u. of heparin intraperitoneally 1h prior to cervical dislocation. Thereafter, hearts were rapidly excised and placed...

...Chris Jensen; Claus Bech ABSTRACT 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 (VT) and oxygen uptake were recorded...