Search
Search Results
-
Torpid 13-lined ground squirrel liver mitochondria resist anoxia-reoxygenation despite high levels of protein damage
Hibernation confers resistance to ischemia–reperfusion injury in tissue, but the underlying mechanisms remain unclear. Suppression of mitochondrial...
-
Pre-hibernation diet alters skeletal muscle relaxation kinetics, but not force development in torpid arctic ground squirrels
During the hibernation season, Arctic ground squirrels (AGS) experience extreme temperature fluctuations (body temperature, T b , as low as − 3 °C),...
-
Silencing of ultradian rhythms and metabolic depression during spontaneous daily torpor in Djungarian hamsters
Ultradian rhythms of metabolism, body temperature and activity are attenuated or disappear completely during torpor in Djungarian hamsters, for all...
-
Activation of oxytocinergic neurons enhances torpor in mice
Mus musculus enters a torpid state in response to caloric restriction in sub-thermoneutral ambient temperatures. This torpid state is characterized...
-
Ultrasonic vocalisation rate tracks the diurnal pattern of activity in winter phenotype Djungarian hamsters (Phodopus sungorus)
Vocalisations are increasingly being recognised as an important aspect of normal rodent behaviour yet little is known of how they interact with other...
-
Co-activation of Akt, Nrf2, and NF-κB signals under UPRER in torpid Myotis ricketti bats for survival
Bats hibernate to survive stressful conditions. Examination of whole cell and mitochondrial proteomes of the liver of Myotis ricketti revealed that...
-
A thermodynamic-based approach to model the entry into metabolic depression by mammals and birds
For decades, there was an intense debate in relation to the mechanism behind the entry into metabolic depression (EMD) of mammals and birds. The...
-
Paper towel shredding as a novel, affordable, noninvasive method for detecting arousals in hibernating rodents
Many research groups explore the regulation of hibernation or compare the physiology of heterothermic mammals between the torpid and aroused,...
-
Body mass is associated with hibernation length, body temperature, and heart rate in free-ranging brown bears
BackgroundDespite centuries of research, debate remains on the scaling of metabolic rate to mass especially for intraspecific cases. The high...
-
Physiological and behavioural adaptations by big brown bats hibernating in dry rock crevices
Winter energy stores are finite and factors influencing patterns of activity are important for overwintering energetics and survival. Hibernation...
-
Induction of a torpor-like hypothermic and hypometabolic state in rodents by ultrasound
Torpor is an energy-conserving state in which animals dramatically decrease their metabolic rate and body temperature to survive harsh environmental...
-
Daily Torpor, Hibernation, and Heterothermy in Marsupials
Most marsupials are small, and because they are endothermic and have high metabolic rates when active, they lose substantial amounts of energy and...
-
Daily Torpor, Hibernation, and Heterothermy in Marsupials
Most marsupials are small, and because they are endothermic and have high metabolic rates when active, they lose substantial amounts of energy and...
-
State dependence of arousal from torpor in brown long-eared bats (Plecotus auritus)
To cope with periods of low food availability and unsuitable environmental conditions (e.g., short photoperiod or challenging weather), many...
-
Integrative transcription start site analysis and physiological phenoty** reveal torpor-specific expression program in mouse skeletal muscle
Mice enter an active hypometabolic state, called daily torpor when they experience a lowered caloric intake under cold ambient temperature. During...
-
Adaptive Blood Cell Variability in the Annual Life Cycle of the Ground Squirrel Urocitellus undulatus
AbstractThe complete blood count (CBC) dynamics was investigated in long-tailed ground squirrels Urocitellus undulatus ( n = 100) during different...
-
Food availability positively affects the survival and somatic maintenance of hibernating garden dormice (Eliomys quercinus)
BackgroundTorpor is an energy saving strategy achieved by substantial reductions of metabolic rate and body temperature that enables animals to...
-
Flexible energy-saving strategies in female temperate-zone bats
Torpor is characterized by an extreme reduction in metabolism and a common energy-saving strategy of heterothermic animals. Torpor is often...
-
Energy and time optimization during exit from torpor in vertebrate endotherms
Torpor is used in small sized birds and mammals as an energy conservation trait. Considerable effort has been put towards elucidating the mechanisms...
-
Energy Balance and Thermoregulation
Birds are endotherms and maintain their body temperatures with heat produced by cell metabolism. The energy consumed at rest, or the basal metabolic...