β-Endorphin, but not substance-P, is increased by acute stress in humans
Title
β-Endorphin, but not substance-P, is increased by acute stress in humans
Creator
Schedlowski M; Flüge T; Richter S; Tewes Uwe; Schmidt RE; Wagner Thomas OF
Identifier
Publisher
Psychoneuroendocrinology
Date
1995
Subject
Anxiety; Stress; Locus of control; Substance-P; β-endorphin
Description
The role of neuropeptides in the psychoneuroendocrinological stress response is largely unknown. In this study the effect of acute psychological stress on β-endorphin and substance-P plasma concentrations was investigated and further the effect of different anxiety levels or control attributions on β-endorphin or substance-P levels was determined. Blood samples were obtained from 47 inexperienced tandem-parachutists 2 h before, immediately after, and 1 h after a parachute jump and plasma concentrations of β-endorphin and substance-P were analysed. Anxiety levels and control attributions were assessed by psychometric scales. Whereas substance-P concentrations seemed to be unaffected by the jump stress, there was a transient but significant increase in β-endorphin levels immediately after jumping. However, subjects higher in state-anxiety at the point of jumping (exit) displayed higher substance-P values at all three time points compared to the “low-anxiety” jumpers. In addition, stress-induced β-endorphin secretion was dependent on subjective control attributions.
1995
Rights
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Type
Journal Article
Citation List Month
Backlog
Citation
Schedlowski M; Flüge T; Richter S; Tewes Uwe; Schmidt RE; Wagner Thomas OF, “β-Endorphin, but not substance-P, is increased by acute stress in humans,” Pediatric Palliative Care Library, accessed March 28, 2024, https://pedpalascnetlibrary.omeka.net/items/show/11606.