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Mammalian Thermogenesis

  • Lucien Girardier
  • Michael J. Stock

Table of contents

  1. Front Matter
    Pages i-viii
  2. Lucien Girardier, Michael J. Stock
    Pages 1-7
  3. David Nicholls, Rebecca Locke
    Pages 8-49
  4. Lucien Girardier
    Pages 50-98
  5. Lewis Landsberg, James B. Young
    Pages 99-140
  6. Jean Himms-Hagen
    Pages 141-177
  7. A. J. F. Webster
    Pages 178-207
  8. Nancy J. Rothwell, Michael J. Stock
    Pages 208-233
  9. P. Trayhurn, W. P. T. James
    Pages 234-258
  10. L. Howard Aulick, Douglas W. Wilmore
    Pages 259-304
  11. Steven M. Eiger, Matthew J. Kluger
    Pages 305-320
  12. Donald Stribling
    Pages 321-354
  13. Back Matter
    Pages 355-359

About this book

Introduction

an attempt to rationalize these terminological and conceptual difficulties we have considered the origins of mammalian heat production from two different points of view. The scheme depicted in Fig. 1. 1 illustrates the fate of energy in the body as seen by the nutritionist. After allowing for losses of energy in faeces and urine, the metabolizable energy obtained from food is utilized for main­ taining and increasing body energy content (maintenance, external work, growth and production). The transformation of metabolizable energy into these forms of net energy also involves inevitable energy losses in the form of heat - thermic energy. Similarly, maintaining homeothermy in cold en­ vironments involves shivering and non-shivering thermogenesis (NST) and the energy costs of assimilating nutrients and retaining net energy results in obligatory heat losses due to diet-induced thermogenesis (DIT). This obligatory DIT is mainly due to the energy cost of protein and fat synthesis but, in addition to this, there is an adaptive component of DIT that helps maintain body energy content (i. e. body weight) by dissipating the metabolizable energy consumed in excess of the requirements for maintenance, growth and production. In Fig. 1. 2, we have converted this nutritionist's scheme (A) into one that A B r-------. . . , I I Production, Growth I I External work I I I I Essential energy expenditure NET BASAL Obligatory 1 I ENERGY Maintenance HEAT heat I FASTING at (BMR) productlpn for t ROC thermoneutrallty homeothermia r.

Keywords

cellular mechanisms dynamics energy energy balance growth heat mammal membrane potential mitochondria nutrition receptors respiration sodium temperature thermodynamics

Editors and affiliations

  • Lucien Girardier
    • 1
  • Michael J. Stock
    • 2
  1. 1.Faculty of MedicineUniversity of GenevaSwitzerland
  2. 2.St. George’s Hospital Medical SchoolUniversity of LondonUK

Bibliographic information

  • DOI https://doi.org/10.1007/978-94-011-6032-2
  • Copyright Information Springer Science+Business Media B.V. 1983
  • Publisher Name Springer, Dordrecht
  • eBook Packages Springer Book Archive
  • Print ISBN 978-94-011-6034-6
  • Online ISBN 978-94-011-6032-2
  • Buy this book on publisher's site