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Thermogenesis in birds.

J E Bicudo1, C R Vianna, J G Chaui-Berlinck

  • 1Departamento de Fisiologia, Instituto de Biociências, Universidade de São Paulo, SP, Brazil. jebicudo@usp.br

Bioscience Reports
|December 1, 2001
PubMed
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Avian skeletal muscle generates heat through shivering and non-shivering thermogenesis. Recent molecular evidence suggests non-shivering thermogenesis may occur in birds, involving sarcoplasmic reticulum calcium ATPase.

Area of Science:

  • Physiology
  • Molecular Biology
  • Animal Science

Background:

  • Avian skeletal muscle plays a crucial role in thermoregulation.
  • Shivering and non-shivering thermogenesis are key heat production mechanisms.
  • The existence and mechanisms of non-shivering thermogenesis in birds remain debated.

Purpose of the Study:

  • To explore the role of avian skeletal muscle in heat generation.
  • To investigate the potential for non-shivering thermogenesis in birds.
  • To examine the involvement of sarcoplasmic reticulum calcium ATPase in avian thermogenesis.

Main Methods:

  • Literature review of existing research on avian thermoregulation.
  • Analysis of molecular and cellular evidence related to heat production.

Related Experiment Videos

  • In-depth discussion of sarcoplasmic reticulum calcium ATPase function.

    • Main Results:

    • Avian skeletal muscle is a significant source of heat via shivering.
    • Emerging molecular data supports the possibility of non-shivering thermogenesis in birds.
    • Sarcoplasmic reticulum calcium ATPase is implicated as a potential mediator.

    Conclusions:

    • Non-shivering thermogenesis in birds, while controversial, is supported by recent molecular findings.
    • Sarcoplasmic reticulum calcium ATPase is a key focus for understanding avian non-shivering thermogenesis.
    • Further research is warranted to elucidate the precise mechanisms.