Results 261 to 270 of about 68,485 (306)

UCP1-independent thermogenesis

Biochemical Journal, 2020
Obesity results from energy imbalance, when energy intake exceeds energy expenditure. Brown adipose tissue (BAT) drives non-shivering thermogenesis which represents a powerful mechanism of enhancing the energy expenditure side of the energy balance equation. The best understood thermogenic system in BAT that evolved to protect the body from hypothermia
Anna Roesler, Lawrence Kazak
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Reduced thermogenesis in obesity

Nature, 1979
IT is often claimed that there are obese patients who find it difficult to maintain a normal body weight because they have such low energy requirements that even normal intakes of energy result in weight gain and obesity. Studies of both children1 and adults2 show that there can be a twofold difference in energy intake between individuals despite ...
R T, Jung, P S, Shetty, W P, James, M A, Barrand, B A, Callingham   +4 more
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Adaptive thermogenesis in hummingbirds

Journal of Experimental Biology, 2002
SUMMARY The occurrence of non-shivering thermogenesis in birds has long been a controversial issue. Although birds are endothermic vertebrates, sharing with mammals (placental mammals and marsupials) a common ancestor, they do not possess brown adipose tissue or a similar type of tissue, unlike their mammalian counterparts.
José Eduardo P W, Bicudo, Antonio C, Bianco, Cláudia R, Vianna   +2 more
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Diet-induced thermogenesis

Pharmacology & Therapeutics, 1982
Mammals must take in large quantities of food, sometimes equivalent to their own body weight each day, in order to meet the energy requirements of processes such as maintenance, growth, activity, thermoregulation, pregnancy, and lactation. It is therefore remarkable to observe that in adults of most species energy intake is equal to expenditure, and ...
Rothwell, N.J., Stock, M.J., Stribling, D.   +2 more
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Central control of thermogenesis

Neuropharmacology, 2012
In mammals and birds, conservation of body heat at around 37 °C is vital to life. Thermogenesis is the production of this heat which can be obligatory, as in basal metabolic rate, or it can be facultative such as the response to cold. A complex regulatory system has evolved which senses environmental or core temperature and integrates this information ...
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Thermogenesis and Thyroid Function

Annual Review of Nutrition, 1995
The past 10 years have seen tremendous progress in the definition of the nuclear mechanism of action of thyroid hormones. Although the way in which these nuclear mechanisms underlie the 3,5,3'-triiodo-L-thyronine (T3)-dependent stimulation of metabolic rate remains to be clarified, evidence favoring non-nuclear pathways is limited.
H C, Freake, J H, Oppenheimer
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Corticotropin and nonshivering thermogenesis

Experientia, 1977
Chronic treatment with corticotropin led to reduced calorigenic effect of norepinephrine in cold acclimatized rats, but potentiated its effect in controls. This inhibitory effect was not due to the observed decrease in corticosterone plasma level, as it was shown by metopirone administration.
M C, Laury, R, Portet
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FEVER AND BIOCHEMICAL THERMOGENESIS

Pediatrics, 1971
Serum free fatty acid versus glycerol ratios were decreased in human newborn infants during pyrexia or cold injury, but remained practically unchanged in older infants and children. Decreased ratios in the newborn resulted exclusively from an increase in serum glycerol.
N, Matsaniotis, V, Pastelis, A, Agathopoulos, N, Constantsas   +3 more
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Nutrient induced thermogenesis

Baillière's Clinical Endocrinology and Metabolism, 1997
Although first described more than two centuries ago, the increase in energy expenditure associated with feeding (nutrient induced thermogenesis (NIT) is still incompletely understood. Although the magnitude of the response and the effect of varying the composition of the diet, route and rate of feeding is still the subject of controversy, the ...
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Studies in Microbial Thermogenesis

Science, 1927
An apparatus for the study of the "spontaneous" heat production in stored organic materials has been described. Experiments with commercial cornmeal and cracked yellow field corn have shown that temperatures above 60°C. can readily be produced under suitable conditions of moisture content, oxygen supply and insulation, and that marked heating does not ...
L H, James, L H, James
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