Literature DB >> 1494028

Body temperature and metabolic rate during natural hypothermia in endotherms.

G Heldmaier1, T Ruf.   

Abstract

During daily torpor and hibernation metabolic rate is reduced to a fraction of the euthermic metabolic rate. This reduction is commonly explained by temperature effects on biochemical reactions, as described by Q10 effects or Arrhenius plots. This study shows that the degree of metabolic suppression during hypothermia can alternatively be explained by active downregulation of metabolic rate and thermoregulatory control of heat production. Heat regulation is fully adequate to predict changes in metabolic rate, and Q10 effects are not required to explain the reduction of energy requirements during hibernation and torpor.

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Year:  1992        PMID： 1494028     DOI： 10.1007/bf00301619

Source DB:  PubMed          Journal:  J Comp Physiol B        ISSN： 0174-1578            Impact factor:   2.200


  27 in total

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Journal:  J Comp Physiol B       Date:  1990       Impact factor: 2.200

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Journal:  Science       Date:  1989-06-30       Impact factor: 47.728
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  62 in total

1.  Temperature effects on energy metabolism: a dynamic system analysis.

Authors:  José Guilherme Chaui-Berlinck; Luiz Henrique Alves Monteiro; Carlos Arturo Navas; José Eduardo P W Bicudo
Journal:  Proc Biol Sci       Date:  2002-01-07       Impact factor: 5.349

2.  Phylogenetic differences of mammalian basal metabolic rate are not explained by mitochondrial basal proton leak.

Authors:  E T Polymeropoulos; G Heldmaier; P B Frappell; B M McAllan; K W Withers; M Klingenspor; C R White; M Jastroch
Journal:  Proc Biol Sci       Date:  2011-06-01       Impact factor: 5.349

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Authors:  José Guilherme Chaui-Berlinck; Carlos Arturo Navas; Luiz Henrique Alves Monteiro; José Eduardo Pereira Wilken Bicudo
Journal:  Proc Biol Sci       Date:  2004-07-07       Impact factor: 5.349

Review 4.  The regulation of food intake in mammalian hibernators: a review.

Authors:  Gregory L Florant; Jessica E Healy
Journal:  J Comp Physiol B       Date:  2011-11-12       Impact factor: 2.200

5.  Adaptive thermogenesis and thermal conductance in wild-type and UCP1-KO mice.

Authors:  Carola W Meyer; Monja Willershäuser; Martin Jastroch; Bryan C Rourke; Tobias Fromme; Rebecca Oelkrug; Gerhard Heldmaier; Martin Klingenspor
Journal:  Am J Physiol Regul Integr Comp Physiol       Date:  2010-09-08       Impact factor: 3.619

6.  Torpor patterns, arousal rates, and temporal organization of torpor entry in wildtype and UCP1-ablated mice.

Authors:  R Oelkrug; G Heldmaier; C W Meyer
Journal:  J Comp Physiol B       Date:  2010-08-01       Impact factor: 2.200

7.  Overwinter body temperature patterns in captive jerboas (Jaculus orientalis): influence of sex and group.

Authors:  S El Ouezzani; I A Janati; R Magoul; P Pévet; M Saboureau
Journal:  J Comp Physiol B       Date:  2010-10-28       Impact factor: 2.200

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9.  Adaptive mechanisms during food restriction in Acomys russatus: the use of torpor for desert survival.

Authors:  N Ehrhardt; G Heldmaier; C Exner
Journal:  J Comp Physiol B       Date:  2005-03-02       Impact factor: 2.200

10.  Brown adipose tissue specific lack of uncoupling protein 3 is associated with impaired cold tolerance and reduced transcript levels of metabolic genes.

Authors:  Kerstin Nau; Tobias Fromme; Carola W Meyer; Christa von Praun; Gerhard Heldmaier; Martin Klingenspor
Journal:  J Comp Physiol B       Date:  2007-11-07       Impact factor: 2.200
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