Genetic influences on brain stimulation-produced analgesia in mice. I. Correlation with stress-induced analgesia

Przemyslaw Marek*, Raz Yirmiya, Izabela Panocka, John C. Liebeskind

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

17 Scopus citations

Abstract

The analgesic effect of electrical stimulation of the periaqueductal gray matter (PAG) was studied in mice selectively bred for high and low stress-induced analgesia (HA and LA lines, respectively). The current intensity required for stimulation-produced analgesia (SPA) in LA mice was 5 times that for HA mice. Naloxone produced a 4-fold increase of SPA threshold in HA mice, but was ineffective in LA mice. These findings suggest that the differential responsiveness of these two lines to the analgesic effect of stress reflects a more general genetic modification of the efficacy and mechanism of their pain-inhibitory systems.

Original languageAmerican English
Pages (from-to)182-184
Number of pages3
JournalBrain Research
Volume489
Issue number1
DOIs
StatePublished - 5 Jun 1989
Externally publishedYes

Bibliographical note

Funding Information:
Supported by NIH Grant NS07628 and the Polish Academy of Sciences Project CPBP-04.01/6.13.

Keywords

  • Genetic difference
  • Naloxone
  • Periaqueductal gray matter
  • Stimulation-produced analgesia
  • Swim-induced analgesia

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