Affordable Access

Publisher Website

Taste modulation of nociception differently affects chronically stressed rats

Authors
Journal
Physiology & Behavior
0031-9384
Publisher
Elsevier
Publication Date
Volume
80
Issue
4
Identifiers
DOI: 10.1016/j.physbeh.2003.10.010
Keywords
  • Nociception
  • Taste
  • Stress
  • Chronic Stress
  • Restraint
  • Tail Flick
  • Pain
  • Rats
Disciplines
  • Biology

Abstract

Abstract Stress responses cover a wide range of physiological changes, including alterations in the perception of and response to pain. Animals submitted to repeated stress present altered nociception and this effect is part of this process of adaptation; in addition pleasant and unpleasant experiences with tastes and odors have been shown to affect distinct behavioral aspects, such as pain perception. The aim of the present study is to verify the responses of repeatedly stressed rats (1 h of daily immobilization during 40 days) to pleasant and unpleasant tastes on nociception, when compared to control animals. An increase in the tail-flick latency (TFL) was observed 5 min after exposure to a sweet taste in the control group, whereas no effect was observed in chronically stressed animals. When submitted to an unpleasant taste (5% acetic acid), the chronically stressed group presented an increase in TFL, whereas no effect was observed in the control group. In conclusion, chronically stressed animals present different nociceptive responses to sweet and acid tastes; although control animals suitably respond to a sweet stimulus, stressed animals seem to be more apt to react to the unpleasant stimulus.

There are no comments yet on this publication. Be the first to share your thoughts.

Statistics

Seen <100 times
0 Comments

More articles like this

Taste modulation of nociception differently affect...

on Physiology & Behavior January 2004

Cytokine modulation by PX differently affects spec...

on The American journal of physio... November 1998

Bruxism affects stress responses in stressed rats.

on Clinical oral investigations April 2010
More articles like this..