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Sex differences in late behavioral response to subcutaneous formalin injection in mice

  • Susan Jin Kim
  • , Amelita A. Calejesan
  • , Ping Li
  • , Feng Wei
  • , Min Zhuo
  • Washington University St. Louis

Research output: Contribution to journal › Article › peer-review

51 Scopus citations

Abstract

We investigated sex- or gender-dependent differences in nociception using the formalin test in mice. In addition to typical biphasic responses, a new, late phase (Phase 3) was observed. A local anesthetic QX-314 injected at the end of Phase 2 blocked Phase 3. Phase 3 in female mice was significantly greater than that in male mice regardless the stage of the estrus cycle.

Original languageEnglish
Pages (from-to)185-189
Number of pages5
JournalBrain Research
Volume829
Issue number1-2
DOIs
StatePublished - May 22 1999

Keywords

  • Formalin test
  • Gender-related difference
  • Mouse
  • Persistent pain

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