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• W2152208083 abstract "Background: Long-term psychosocial stress can cause and contribute to a wide range of psychological and somatic conditions, and accelerate aging. One of the consequences of long-term psychosocial stress may be a reduction in the levels of dehydroepiandrosterone and its sulphated metabolite dehydroepiandrosterone sulfate (DHEA-S). The aim of this thesis was to investigate the effects of acute and long-term psychosocial stress on serum levels of DHEA and DHEA-S in otherwise healthy men and women. Method: In Paper I, 39 healthy individuals went through a stress test (Trier social stress test). Blood samples were collected before the stress test, immediately after the stress test and after 30 minutes of recovery. Mixed between-within ANOVAs were used to investigate the responses of DHEA and DHEA-S. Thirty-six of the 39 participants in Paper I answered a questionnaire regarding long-term stress (perceived stress at work) and were included in Paper II. DHEA and DHEA-S response during acute stress were compared between groups of individuals who reporting different levels of long-term stress (Low, Medium, High) using ANCOVA. The Low stress group, which did not experience any stress at work, was used as reference group. In Paper III, morning DHEA-S and DHEA levels were measured in serum in 41 stressed and 40 non-stressed individuals. The groups were defined based on their scores on the questionnaire measuring longterm stress (perceived stress at work). DHEA and DHEA-S levels were compared between the groups using ANCOVA. Results: While acute psychosocial stress increases the levels of DHEA and DHEA-S temporarily (Paper I), long-term psychosocial stress is associated with reduced capacity to produce DHEA-S during acute stress (Paper II) and lower basal DHEA-S levels (Paper III). Conclusions: Considering the beneficial effects that DHEA and DHEA-S have and the fact that low DHEA and DHEA-S levels are associated with adverse health, the findings of this thesis suggest that one of the links between long-term stress and adverse health could be that long-term stress reduces the capacity to produce DHEA-S." @default.
• W2152208083 created "2016-06-24" @default.
• W2152208083 creator A5051388578 @default.
• W2152208083 date "2013-05-24" @default.
• W2152208083 modified "2023-09-27" @default.
• W2152208083 title "Effects of Psychosocial Stress on DHEA and DHEA-S levels Acute and Long-term effects" @default.
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