منابع مشابه
The role of endogenous H2S formation in reversible remodeling of lung tissue during hibernation in the Syrian hamster.
During hibernation, small mammals alternate between periods of metabolic suppression and low body temperature ('torpor') and periods of full metabolic recovery with euthermic temperatures ('arousal'). Previously, we demonstrated marked structural remodeling of the lung during torpor, which is rapidly reversed during arousal. We also found that cooling of hamster cells increased endogenous produ...
متن کاملHibernation
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. Hibernators express multiday torpor predominately throughout winter, which substantially enhan...
متن کاملHibernation: Endotherms
The main function of hibernation and daily torpor in heterothermic mammals and birds (i.e. species capable of expressing torpor) is to conserve energy and water and thus to survive during adverse environmental conditions or periods of food shortage no matter if they live in the arctic or the tropics. However, the reduced energy requirements also permit survival of bad weather during reproductio...
متن کاملHibernation: poikilotherms
Introduction For cold-blooded or poikilothermic animals, winter presents challenges to survival. Since the body temperature (Tb) of poikilotherms is usually very close to that of their surrounding environment, the risk of death from freezing is very real when temperatures drop below 0°C. Food is also scare during the winter and some animals also have limited mobility because the cold can make m...
متن کاملHibernation in noncontracting mammalian cardiomyocytes.
BACKGROUND -The aim of the present study was to establish whether isolated neonatal mammalian cardiomyocytes were capable of downregulating energy-using processes other than contraction while maintaining metabolic stability when oxygen availability was reduced. METHODS AND RESULTS Metabolic response of cardiomyocytes was investigated under moderate (5 to 6 micromol/L) and severe (2 to 3 micro...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Nature Chemistry
سال: 2010
ISSN: 1755-4330,1755-4349
DOI: 10.1038/nchem.542