Keeping in check painful synapses in central amygdala

Neuron. 2007 Dec 6;56(5):757-9. doi: 10.1016/j.neuron.2007.11.011.

Abstract

Glutamatergic projections from the parabrachial nucleus to the central amygdala are implicated in pain transmission. In this issue of Neuron, Delaney et al. identify a new form of adrenergic modulation at these synapses, demonstrating that noradrenaline-induced suppression of glutamate release is mediated by a decrease in the number of sites of synaptic transmission without changes in probability of release.

Publication types

  • Comment

MeSH terms

  • Adrenergic alpha-Agonists / pharmacology
  • Amygdala / cytology
  • Amygdala / physiopathology*
  • Animals
  • Emotions / physiology
  • Glutamic Acid / physiology
  • Humans
  • Nerve Fibers / physiology
  • Neural Pathways / physiology
  • Neurotransmitter Agents / physiology
  • Norepinephrine / pharmacology
  • Pain / physiopathology*
  • Pain / psychology
  • Synapses / physiology*
  • Synaptic Transmission / drug effects

Substances

  • Adrenergic alpha-Agonists
  • Neurotransmitter Agents
  • Glutamic Acid
  • Norepinephrine