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Related Experiment Videos

Signals of adiposity.

R G Vernon1, R G Denis, A Sørensen

  • 1Hannah Research Institute, Ayr KA6 5HL, Scotland, UK. vernonr@hri.sari.ac.uk

Domestic Animal Endocrinology
|March 2, 2002
PubMed
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Adipose tissue mass is tightly regulated in mammals, influenced by factors like leptin, which controls appetite and energy. Other factors, such as tumor necrosis factor (TNF) alpha and resistin, modulate insulin

Area of Science:

  • Endocrinology
  • Metabolic Research
  • Evolutionary Biology

Background:

  • Adipose tissue serves as an energy reserve crucial for mammalian evolution.
  • Its expansion capacity, while protective against starvation, poses predation risks, necessitating tight mass control in wild species.

Purpose of the Study:

  • To explore the regulatory mechanisms of adipose tissue mass.
  • To investigate the roles of secreted factors, including leptin, TNF alpha, and resistin, in modulating adipose tissue.

Main Methods:

  • Review of existing literature on adipose tissue function and regulation.
  • Analysis of the known functions of key adipokines like leptin, TNF alpha, and resistin.

Main Results:

  • Leptin influences appetite and energy expenditure via the hypothalamus, impacting fasting adaptations, reproduction, and immune function.

Related Experiment Videos

  • Tumor necrosis factor (TNF) alpha and resistin play paracrine roles, counteracting insulin's anabolic effects on adipose tissue metabolism.

    • Conclusions:

    • Adipose tissue mass is under sophisticated hormonal and paracrine control.
    • Leptin, TNF alpha, and resistin are key players in maintaining energy homeostasis and metabolic balance within adipose tissue.