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Was it something I ate?

Alastair S Garfield1, Bradford B Lowell

  • 1Centre for Integrative Physiology, University of Edinburgh, Edinburgh, UK; Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, USA.

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|December 10, 2013
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Summary
This summary is machine-generated.

Sickness commonly causes appetite loss. Researchers discovered a specific neural circuit connecting the hindbrain to the amygdala that is responsible for this illness-induced anorexia.

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Area of Science:

  • Neuroscience
  • Physiology
  • Behavioral Science

Background:

  • Aversive visceral stimuli, like those experienced during sickness, are known to suppress appetite.
  • The precise neural mechanisms driving illness-related anorexia remain incompletely understood.

Purpose of the Study:

  • To identify the neural circuits responsible for appetite suppression during illness.

Main Methods:

  • Investigated neural pathways involved in processing visceral stimuli and appetite regulation.
  • Utilized techniques to map and analyze the hindbrain to amygdala circuit activity.

Main Results:

  • Identified a specific neural circuit connecting the hindbrain to the amygdala.
  • This circuit was found to contribute significantly to illness-induced anorexia.

Conclusions:

  • A specific hindbrain → amygdala circuit plays a crucial role in mediating illness-related loss of appetite.
  • This finding advances our understanding of the neurobiology of anorexia associated with sickness.