Results 31 to 40 of about 19,369 (273)

Metabolic changes in summer active and anuric hibernating free-ranging brown bears (ursus arctos)

, 2013
The brown bear (Ursus arctos) hibernates for 5 to 6 months each winter and during this time ingests no food or water and remains anuric and inactive.
Abdul Rashid Qureshi, Johnson, Richard J,, Fröbert, Ole,, Peter Stenvinkel, Palm, Fredrik, Eriksson, Monica, Tobias Larsson, Zedrosser, Andreas, Josefsson, Johan, Johnson, Richard J., Anderstam, Björn, Friebe, Andrea,, Stenvinkel, Peter, Bankir, Lise, Johnson, Richard J, Sahdo, Berolla, Sahdo, Berolla,, Ann-Christin Bragfors-Helin, Andreas Zedrosser, Lise Bankir, Qureshi, Abdul Rashid,, Fröbert, Ole, Ole Fröbert, Björn Anderstam, Richard J Johnson, Anderstam, Björn,, Larsson, Tobias,, Friebe, Andrea, Berolla Sahdo, Bragfors-Helin, Ann-Christin,, Bragfors-Helin, Ann-Christin, Johnson, Richard J.,, Johan Josefsson, Josefsson, Johan,, Eriksson, Monica,, Qureshi, Abdul Rashid, Larsson, Tobias, Svensson, My, Stenvinkel, Peter,, Svensson, My,, My Svensson, Zedrosser, Andreas,, Palm, Fredrik,, Monica Eriksson, Bankir, Lise,, Fredrik Palm, Andrea Friebe   +46 more
core   +1 more source

Cold resistance of mammalian hibernators ∼ a matter of ferroptosis?

Frontiers in Physiology
Most mammals adapt thermal physiology around 37°C and large deviations from their range, as observed in severe hypothermia and hyperthermia, resulting in organ dysfunction and individual death. A prominent exception is mammalian hibernation.
Masamitsu Sone, Masamitsu Sone, Yoshifumi Yamaguchi, Yoshifumi Yamaguchi   +3 more
doaj   +1 more source

Transgenic system for conditional induction and rescue of chronic myocardial hibernation provides insights into genomic programs of hibernation

, 2008
A key energy-saving adaptation to chronic hypoxia that enables cardiomyocytes to withstand severe ischemic insults is hibernation, i.e., a reversible arrest of contractile function.
Djonov, Valentin, Gordon, Oren, Rosenberger, Christian, Keshet, Eli, Itin, Ahuva, Gilon, Dan, May, Dalit, Lazarus, Alon   +7 more
core   +1 more source

Hibernation in the Alligator

Experimental Biology and Medicine, 1952
SummaryAlthough alligators are quite active in the winter if the temperature is high they have a pronounced hypoglycemia and no appetite. There is no seasonal change in metabolic rate in either the alligator or caiman. The caiman does not hibernate. Pituitary powder produces prolonged hyperglycemia and increases the metabolic rate.
T, HERNANDEZ, R A, COULSON
openaire   +2 more sources

Comparison of brain transcriptome of the greater horseshoe bats (Rhinolophus ferrumequinum) in active and torpid episodes. [PDF]

PLoS ONE, 2014
Hibernation is an energy-saving strategy which is widely adopted by heterothermic mammals to survive in the harsh environment. The greater horseshoe bat (Rhinolophus ferrumequinum) can hibernate for a long period in the hibernation season.
Ming Lei, Dong Dong, Shuo Mu, Yi-Hsuan Pan, Shuyi Zhang   +4 more
doaj   +1 more source

Dynamics in gut microbiota diversity, composition, and assembly reveal the adaptability of invasive snail Pomacea canaliculata during hibernation in rice fields

Frontiers in Microbiology
The gut microbiota plays a crucial role in host immunity and metabolism and may facilitate the adaptation of invasive species to new environments. During hibernation, gut microbial communities undergo compositional shifts to help hosts cope with low ...
Fucheng Yao, Fucheng Yao, Chuang Li, Chuang Li, Yingtong Chen, Yingtong Chen, Jiaen Zhang, Jiaen Zhang, Jiaen Zhang, Jiaen Zhang, Zhaoji Shi, Zhaoji Shi, Zhong Qin, Zhong Qin, Zhong Qin, Zhong Qin   +15 more
doaj   +1 more source

Surgery for hibernation [PDF]

Heart, 2004
In the early 1980s Rahimtoola reviewed the results of coronary bypass surgery trials1 and identified patients with coronary artery disease and chronic left ventricular dysfunction that improved upon revascularisation. The results of medical treatment for ischaemic cardiomyopathy have been poor.
openaire   +2 more sources

Psychological Hibernation in Antarctica [PDF]

Frontiers in Psychology, 2018
Human activity in Antarctica has increased sharply in recent years. In particular during the winter months, people are exposed to long periods of isolation and confinement and an extreme physical environment that poses risks to health, well-being and performance.
Gro Mjeldheim Sandal, Fons J. R. van deVijver, Fons J. R. van deVijver, Nathan Smith   +3 more
openaire   +7 more sources

Increased brain histamine H₃ receptor expression during hibernation in golden-mantled ground squirrels

BMC Neuroscience, 2003
Background Hibernation is a state of extremely reduced physiological functions and a deep depression of CNS activity. We have previously shown that the histamine levels increase in the brain during hibernation, as does the ratio between histamine and its
Anichtchik Oleg V, Lozada Adrian F, Sallmen Tina, Beckman Alexander L, Panula Pertti   +4 more
doaj   +1 more source

Hibernation with Rhythmicity in the Retina, Brain, and Plasma but Not in the Liver of Hibernating Giant Spiny Frogs (Quasipaa spinosa)

Biology, 2022
Hibernation in ectotherms is well known, however, it is unclear how the circadian clock regulates endocrine and antioxidative defense systems of aquatic hibernators.
Zhigang Xie, Ibrahim M. Ahmad, Lirong Zuo, Hui Wang, Dongming Li   +4 more
doaj   +1 more source