... ). Central control of thermogenesis . Neuropharmacology 63 , 111 - 123 . 10.1016/j.neuropharm.2011.10.014 Christians , J. K. ( 1999 ). Controlling for body mass effects: is part–whole correlation important? Physiol. Biochem. Zool. 72 , 250 - 253 . 10.1086/316661 Cui , D...

... burrow environment. Therefore, we hypothesized that tenrecs are tolerant to environmental hypoxia and hypercapnia. Many hypoxia- and hypercapnia-tolerant fossorial mammals respond to hypoxia by decreasing metabolic rate and thermogenesis, and have blunted ventilatory responses to both environmental...

...Jing Wen; Tingbei Bo; Xueying Zhang; Zuoxin Wang; Dehua Wang ABSTRACT Ambient temperature and food composition can affect energy metabolism of the host. Thermal transient receptor potential ion channels (thermo-TRPs) can detect temperature signals and are involved in the regulation of thermogenesis...

...Cayleih E. Robertson; Grant B. McClelland ABSTRACT Many endotherms native to cold and hypoxic high-altitude (HA) environments have evolved a highly vascularized and aerobic skeletal muscle. This specialized muscle phenotype contributes via shivering to an enhanced capacity for aerobic thermogenesis...

...Mallory A. Ballinger; Matthew T. Andrews; Raul K. Suarez; Hans H. Hoppeler ABSTRACT Brown adipose tissue (BAT) is a unique thermogenic tissue in mammals that rapidly produces heat via nonshivering thermogenesis. Small mammalian hibernators have evolved the greatest capacity for BAT because they use...

... organisms, which was instrumental to the discovery of BAT function, and the unique evolutionary history of BAT/UCP1 in mammalian thermogenesis. The comparative biology of BAT provides a powerful integrative approach that could identify conserved and specialized functional changes in BAT and UCP1...

... thermogenesis is not active, suggesting active mechanisms of metabolic suppression, rather than passive thermal effects. Mitochondrial respiration is suppressed during torpor, especially when measured in liver mitochondria fuelled with succinate at 37°C in vitro . This suppression of mitochondrial metabolism...

... day 10 of lactation. Energy intake, number of pups and litter mass, milk energy output (MEO), thermogenesis, mass of the mammary glands and brown adipose tissue cytochrome c oxidase activity of the mothers were measured. At 21 and 5°C, pup mass at weaning was almost independent of litter size...

.... 2011 arctic ground squirrel fuel substrate metabolism real-time PCR thermogenesis torpor hibernation Hibernation in mammals is characterized by a suite of interconnected morphological, physiological, molecular and behavioral changes that enable individuals to persist in environments...

... the endothermic and ectothermic sharks. This finding indicates that red muscle and liver mitochondria of the shortfin mako shark are not specialized for thermogenesis by having a higher proton conductance. However, mako mitochondria did have higher succinate-stimulated respiration rates and membrane potentials...

...David L. Swanson; Eric T. Liknes SUMMARY Small birds showing marked seasonal changes in cold tolerance also exhibit winter increases in summit metabolic rate ( M sum =maximum cold-induced thermogenesis or thermogenic capacity) relative to summer birds. However, some birds show modest seasonal...

... of skeletal muscle in these animals is greatly increased. We investigated the effects of this plastic response to thermogenesis on locomotion and muscle mechanics. In cold-exposed animals, cost of transport was 15% higher than in controls but was unaffected by exercise training. Twitch kinetics in isolated...

... experimental evolution locomotor activity maximum oxygen consumption running performance thermogenesis mouse Studies of locomotor performance have been crucial for understanding how behavior and physiology interact at ecological and evolutionary levels (e.g. Bennett and Huey, 1990 ; Autumn et al...

... a significant thermogenic role for the PFK/FbPase cycle. In agreement with earlier studies, both PFK and FbPase activities were found to scale allometrically with body size (allometric exponents -0.18 and -1.33,respectively). The cycle may serve to supplement thermogenesis or amplify glycolytic flux in rest...

... precluded from adjusting their thermoregulatory behavior. The feeding-derived thermogenesis caused the surface body temperature of rattlesnakes to increase by 0.9–1.2°C, a temperature change that will significantly affect digestive performance. The alterations in body temperature following feeding...

..., J. ( 2001 ). Only UCP1 can mediate adaptive nonshivering thermogenesis in the cold. FASEB J. 15 , U327 -U340. Hammond, K. A., Szewczak, J. and Król, E. ( 2001 ). Effects of altitude and temperature on organ phenotypic plasticity along an altitudinal gradient. J. Exp. Biol. 204 , 1991...

... for mammals, their basal metabolic rate (BMR) and maximal oxygen consumption in exercise( V̇ O 2 max ) and thermogenesis( V̇ O 2 sum )increased as power functions of mass. Age did not affect BMR, but we found abrupt decreases in growth rate, V̇ O 2 max and V̇ O 2 sum at approximately 485 days of age...

... content but have lost most of the contractile myofilaments. Thermogenesis has been hypothesized to be associated with release and reuptake of Ca 2+ . In this study,Ca 2+ fluxes in heater SR vesicles derived from blue marlin( Makaira nigricans ) were measured using fura-2 fluorescence. Upon the addition...

... prevents wasting. * Author for correspondence (e-mail: [email protected] ). 28 07 1997 ©The Company of Biologists Limited 1997 3-hydroxybutyrate ketone bodies thermogenesis noradrenaline brown adipose tissue body temperature rat Adaptive thermogenesis...

... other mammal. Up to a body temperature of approximately 17 °C, the heat for rewarming was mainly produced in the BAT; above this value, considerable activity of the skeletal muscles enhanced thermogenesis. Estimation of the mixed venous oxygen partial pressure showed that, at the tissue level...