Thermogenesis
Mostrando 13-24 de 104 artigos, teses e dissertações.
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13. Role of adrenergic receptor b1 e b2 in facultative thermogenesis. / Papel dos receptores adrenérgicos b1 e b2 na termogênese facultativa.
The body weight of animals tends to be relatively stable over long periods of time. Situations of caloric restriction or increase in intake of calories lead to compensatory physiological changes that resist the effects of these disorders. In fact, the energy expenditure increases in animals treated with diet hypercaloric called facultative thermogenesis, in
Publicado em: 2009
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14. Restrição alimentar intra-uterina e suas repercussões sobre o desenvolvimento da termorregulação da prole.
Background: Previous study from our laboratory has shown that intrauterine food restriction (IUFR) delayed thermoregulation of the newborns. In neonates brown adipose tissue (BAT) is essential for thermogenesis mainly due to the presence of uncoupling proteins (UCPs) and their expression can be modified by action of hormones such as thyroid hormone, leptin a
Publicado em: 2009
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15. Deletion of tumor necrosis factor-alpha-receptor 1 (TNFR1) protects against diet-induced obesity by means of increased thermogenesis / O Knockout para o receptor 1 de TNF-a protege contra obesidade induzida por dieta
O aumento da prevalência de obesidade em várias regiões do planeta é um dos mais importantes fenômenos clínico-epidemiológicos da atualidade. Fatores como a mudança do hábito alimentar e o estilo de vida sedentário, aliados a determinantes genéticos ainda pouco conhecidos desempenham um papel relevante na patogênese dessa doença. Nos últimos qu
Publicado em: 2009
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16. Thermogenesis and post-prandial termophly in Bothrops moojeni (Serpentes: Viperidae) in captivity / Termofilia e termogênese pós-prandiais em Bothrops moojeni (Serpentes:Viperidae) em cativeiro
The study of the preferred temperatures and thermophilic behavior is essential to understand the snakes thermal biology. Although some studies have been reported, most of them are focused in temperate and diurnal species. Thus, little is known about the tropical and sub-tropical nocturnal species. In the present study , a video-monitored arena with a thermal
Publicado em: 2009
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17. Termorregulação colonial e energética individual em abelhas sem ferrão Melipona quadrifasciata Lepeletier (Hymenoptera, Apidae, Meliponini) / Colonial thermoregulation and energetics in stingless bees Melipona quadrifasciata Lepeletier (Hymenoptera, Apidae, Meliponini).
In eusocial insects, such as stingless bees, the control of nest conditions and maintenance of the colonial microclimate are important to brood incubation, development of eggs, larvae and pupae, and survival of the colony. One of the main thermoregulatory mechanisms to control nest temperature is the microhabitat selection to build the nest, such as tree hol
Publicado em: 2008
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18. Renal contributions to corporal homeostasis in rats : role of renal innervation / Contribuição renal para a homeostase corporal em ratos : função da inervação renal
Introdução: Os rins, em humanos, são responsáveis por 10% de todo o oxigênio consumido, pelo corpo, em 24 horas. Este consumo pode ser representativo de uma grande contribuição da parte renal para a termogênese global dos indivíduos. A termogênese global é constituída pela termogênese facultativa, a qual está associada à ativação da UCP e ca
Publicado em: 2007
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19. Alternative mitochondrial functions in cell physiopathology: beyond ATP production
It is well known that mitochondria are the main site for ATP generation within most tissues. However, mitochondria also participate in a surprising number of alternative activities, including intracellular Ca2+ regulation, thermogenesis and the control of apoptosis. In addition, mitochondria are the main cellular generators of reactive oxygen species, and ma
Brazilian Journal of Medical and Biological Research. Publicado em: 2000-02
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20. In Vivo Ubiquinone Reduction Levels during Thermogenesis in Araceae1
In vivo ubiquinone (UQ) reduction levels were measured during the development of the inflorescences of Arum maculatum and Amorphophallus krausei. Thermogenesis in A. maculatum spadices appeared not to be confined to a single developmental stage, but occurred during various stages. The UQ pool in both A. maculatum and A. krausei appendices was approxim
American Society of Plant Physiologists.
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21. Influence of mild cold on the components of 24 hour thermogenesis in rats.
1. The influence of two weeks' acclimation to either 28 degrees C (thermal neutrality) or 21 degrees C (mild cold) on 24 h heat production and motor activity has been investigated in male Wistar rats. Food intake was controlled and provided as a single meal of approximately 170 kJ per day. Mathematical modelling was used to relate metabolic rate to measured
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22. Thermogenesis in normal rabbits and rats: no role for brown adipose tissue?
1. The occurrence of dietary and cold-induced thermogenesis in young rabbits was unaffected by noradrenaline or propranolol, and it is concluded that the brown adipose tissue, although detectable histologically, is non-functional. 2. Noradrenaline treatment caused an increase in oxygen consumption in albino, but not in hooded rats, suggesting that the former
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23. Mice lacking Pctp /StarD2 exhibit increased adaptive thermogenesis and enlarged mitochondria in brown adipose tissue[S]
Pctp−/− mice that lack phosphatidylcholine transfer protein (Pctp) exhibit a marked shift toward utilization of fatty acids for oxidative phosphorylation, suggesting that Pctp may regulate the entry of fatty acyl-CoAs into mitochondria. Here, we examined the influence of Pctp expression on the function and structure of brown adipose tissue (BAT), a mitoc
The American Society for Biochemistry and Molecular Biology.
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24. Coefficients for Active Transport and Thermogenesis of Ca2+-ATPase Isoforms
Coefficients for active transport of ions and heat in vesicles with Ca2+-ATPase from sarcoplasmic reticulum are defined in terms of a newly proposed thermodynamic theory and calculated using experiments reported in the literature. The coefficients characterize in a quantitative manner different performances of the enzyme isoforms. Four enzyme isoforms are ex
The Biophysical Society.