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Varying perceived social threat modulates pain behavior in male mice.
- Source :
-
The journal of pain [J Pain] 2011 Jan; Vol. 12 (1), pp. 125-32. Date of Electronic Publication: 2010 Aug 04. - Publication Year :
- 2011
-
Abstract
- Unlabelled: We previously demonstrated that male mice display significantly reduced pain behavior on the acetic acid abdominal constriction test when confined in close proximity to a stranger male mouse. We show here the testosterone-dependence (via castration and testosterone propionate replacement) of this phenomenon, likely a form of (social) stress-induced analgesia. However, when similar male dyads are separated by vertical metal bars, allowing only partial physical contact, we find that the mice exhibit hyperalgesia, not analgesia, in response to both acetic acid injection and noxious radiant heat, relative to testing in isolation. This finding is specific to same-sex male dyads, and no change in nociceptive sensitivity is observed when males are tested in the presence of a female conspecific. We propose that pain sensitivity varies with respect to the severity of the social threat: mild social threat produces hyperalgesia and more severe social threat produces analgesia.<br />Perspective: This work highlights the importance of social threat in modulating pain behavior in a sex-specific manner. The findings add to a growing body of evidence that social factors affect pain behavior in mice, thus allowing the study of the mechanistic underpinnings of social modulation of pain in humans.<br /> (Copyright © 2011 American Pain Society. Published by Elsevier Inc. All rights reserved.)
- Subjects :
- Animals
Behavior, Animal drug effects
Behavior, Animal physiology
Castration
Corticosterone blood
Disease Models, Animal
Feces
Female
Male
Mice
Mice, Inbred ICR
Pain drug therapy
Pain Measurement methods
Pain Threshold drug effects
Testosterone therapeutic use
Gonadal Steroid Hormones administration & dosage
Interpersonal Relations
Pain physiopathology
Pain psychology
Pain Threshold physiology
Subjects
Details
- Language :
- English
- ISSN :
- 1528-8447
- Volume :
- 12
- Issue :
- 1
- Database :
- MEDLINE
- Journal :
- The journal of pain
- Publication Type :
- Academic Journal
- Accession number :
- 20685172
- Full Text :
- https://doi.org/10.1016/j.jpain.2010.06.003