Results 11 to 20 of about 12,269 (201)

The Preservation of Muscle Mitochondrial Machinery During Hypometabolic Hibernation in Scandinavian Brown Bears (Ursus arctos). [PDF]

Acta Physiol (Oxf)
ABSTRACT Aim Unlike humans, brown bears (Ursus arctos) uniquely preserve skeletal muscle mass and function during months of hibernation despite prolonged fasting and inactivity. We investigated how mitochondrial energetics respond in skeletal muscle to support this remarkable resilience.
Bergouignan A, Noone J, Brun C, Cussonneau L, Geffroy A, Coudy-Gandilhon C, Chery I, Evans AL, Arnemo JM, Kindberg J, Gauquelin-Koch G, O'Gorman D, Lefai E, Bertile F.   +13 more
europepmc   +2 more sources

Flickering body temperature anticipates criticality in hibernation dynamics [PDF]

Royal Society Open Science, 2021
Hibernation has been selected for increasing survival in harsh climatic environments. Seasonal variability in temperature may push the body temperatures of hibernating animals across boundaries of alternative states between euthermic temperature and ...
Daniel Oro, Lídia Freixas
doaj   +1 more source

Hepatic resistance to cold ferroptosis in a mammalian hibernator Syrian hamster depends on effective storage of diet-derived α-tocopherol

Communications Biology, 2021
Daisuke Anegawa et al. investigated the mechanisms responsible for cold resistance in the Syrian hamster’s hepatocytes, which exhibited remarkable resistance to prolonged cold culture.
Daisuke Anegawa, Yuki Sugiura, Yuta Matsuoka, Masamitsu Sone, Mototada Shichiri, Reo Otsuka, Noriko Ishida, Ken-ichi Yamada, Makoto Suematsu, Masayuki Miura, Yoshifumi Yamaguchi   +10 more
doaj   +1 more source

Oxidative and osmotolerant effects in Salvator merianae (Squamata: Teiidae) red blood cells during hibernation

Brazilian Journal of Biology, 2021
Hibernation is a natural condition of animals that lives in the temperate zone, although some tropical lizards also experience hibernation annually, such as the lizard native from South America, Salvator merianae, or “tegu” lizard.
G. S. Vicente-Ferreira, G. S. Martins, N. A. Chaves, D. G. H. Silva, C. R. Bonini-Domingos   +4 more
doaj   +1 more source

Hibernation [PDF]

Current Biology, 2013
Hibernation (multiday torpor) and daily torpor in heterothermic mammals and birds are characterized by pronounced temporal reductions in body temperature, energy expenditure, water loss, and other physiological functions and are the most effective means for energy conservation available to endotherms.
openaire   +2 more sources

Variations in oxidative stress and antioxidant defense level during different phases of hibernation in common Asian toad, Duttaphrynus melanostictus

Biology Open, 2021
To assess redox status during hibernation with metabolic depression, oxidative stress parameters and antioxidant defense were assessed during different phases of hibernation including active period, hibernation, arousal, and post-arousal period, in the ...
Prabhati Patnaik, Deba Das Sahoo
doaj   +1 more source

Hibernation Period in Some Land Snail Species (Gastropoda: Helicidae): Epiphragmal Structure and Hypometabolic Behaviors

Turkish Journal of Agriculture: Food Science and Technology, 2021
In this study, the hypometabolism behavior, epiphragm formation process, and the mineral composition of the epiphragmal structure of the Helix pomacella, Eobania vermiculata, Helix melanostoma, and Helix asemnis land snails were investigated during the ...
Hülya Şereflişan, Önder Duysak
doaj   +1 more source

Physiochemical and histological study on the effect of the hibernation on the liver of Uromastyx acanthinura (Bell, 1825).

مجلة المختار للعلوم, 2013
This study described the changes in the liver of Uromastyx acanthinura (Bell, 1825) males and females during hibernation and activity seasons. The results revealed that, hibernation causes increase fatty liver and pigment cells with abundant damage ...
Yousef K.A Abdel-Hafid
doaj   +1 more source

Over-Winter Survival and Nest Site Selection of the West-European Hedgehog (Erinaceus europaeus) in Arable Dominated Landscapes

Animals, 2020
The West-European hedgehog (Erinaceus europaeus) has declined markedly in the UK. The winter hibernation period may make hedgehogs vulnerable to anthropogenic habitat and climate changes.
Lucy E. Bearman-Brown, Philip J. Baker, Dawn Scott, Antonio Uzal, Luke Evans, Richard W. Yarnell   +5 more
doaj   +1 more source

Single-Cell Atlas Reveals the Hemocyte Subpopulations and Stress Responses in Asian Giant Softshell Turtle during Hibernation

Biology, 2023
Hibernation in turtle species is an adaptive survival strategy to colder winter conditions or food restrictions. However, the mechanisms underlying seasonal adaptions remain unclear.
Xiaoyou Hong, Yakun Wang, Kaikuo Wang, Chengqing Wei, Wei Li, Lingyun Yu, Haoyang Xu, Junxian Zhu, Xinping Zhu, Xiaoli Liu   +9 more
doaj   +1 more source