Upregulation of forebrain NMDA NR2B receptors contributes to behavioral sensitization after inflammation.

نویسندگان

  • Long-Jun Wu
  • Hiroki Toyoda
  • Ming-Gao Zhao
  • Yong-Seok Lee
  • Jianrong Tang
  • Shanelle W Ko
  • Yong Heng Jia
  • Fanny W F Shum
  • Celina V Zerbinatti
  • Guojun Bu
  • Feng Wei
  • Tian-Le Xu
  • Louis J Muglia
  • Zhou-Feng Chen
  • Yves P Auberson
  • Bong-Kiun Kaang
  • Min Zhuo
چکیده

Transgenic overexpression of NMDA NR2B receptors in forebrain regions increased behavioral responses to persistent inflammatory pain. However, it is not known whether inflammation leads to the upregulation of NR2B receptors in these regions. Here, we show that peripheral inflammation increased the expression of NMDA NR2B receptors and NR2B receptor-mediated synaptic currents in the anterior cingulate cortex (ACC). In freely moving mice, the increase in NR2B receptors after inflammation contributed to enhanced NMDA receptor-mediated responses in the ACC. Inhibition of NR2B receptors in the ACC selectively reduced behavioral sensitization related to inflammation. Our results demonstrate that the upregulation of NR2B receptors in the ACC contributes to behavioral sensitization caused by inflammation.

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Ether and me by Will Rogers.

ZF, Auberson YP, Kaang BK, Zhuo M: Upregulation of forebrain NMDA NR2B receptors contributes to behavioral sensitization after inflammation. J Neurosci 2005; 25:11107–16 33. Ji G, Horváth C, Neugebauer V: NR2B receptor blockade inhibits pain-related sensitization of amygdala neurons. Mol Pain 2009; 5:21 34. Gabriel AF, Marcus MA, Walenkamp GH, Joosten EA: The CatWalk method: Assessment of mecha...

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عنوان ژورنال:
  • The Journal of neuroscience : the official journal of the Society for Neuroscience

دوره 25 48  شماره 

صفحات  -

تاریخ انتشار 2005