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Dietary L-tryptopha...
Dietary L-tryptophan leaves a lasting impression on the brain and the stress response
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- Höglund, Erik (författare)
- Norwegian Inst Water Res NIVA, Gaustadalleen 21, N-0349 Oslo, Norway.;Univ Agder, Ctr Coastal Res, Postboks 422, N-4604 Kristiansand, Norway.
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- Overli, Oyvind (författare)
- Norwegian Univ Life Sci, Dept Anim & Agr Sci, POB 1432, As, Norway.
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- Andersson, Madelene Å. (författare)
- Tech Univ Denmark, North Sea Ctr, Danish Inst Fisheries Res, Dept Marine Ecol & Aquaculture, POB 101, DK-9850 Hirtshals, Denmark.
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- Silva, Patricia (författare)
- Norwegian Univ Life Sci, Dept Anim & Agr Sci, POB 1432, As, Norway.;Tech Univ Denmark, North Sea Ctr, Danish Inst Fisheries Res, Dept Marine Ecol & Aquaculture, POB 101, DK-9850 Hirtshals, Denmark.
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- Laursen, Danielle Caroline (författare)
- Tech Univ Denmark, North Sea Ctr, Danish Inst Fisheries Res, Dept Marine Ecol & Aquaculture, POB 101, DK-9850 Hirtshals, Denmark.
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- Moltesen, Maria M. (författare)
- Tech Univ Denmark, North Sea Ctr, Danish Inst Fisheries Res, Dept Marine Ecol & Aquaculture, POB 101, DK-9850 Hirtshals, Denmark.;Univ Copenhagen, Dept Biol, Sect Ecol & Evolut, Univ Pk 15,Bldg 3,4th Floor, DK-2100 Copenhagen O, Denmark.
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- Krogdahl, Åshild (författare)
- Norwegian Univ Life Sci, Dept Basic Sci & Aquat Med, POB 8146 Dep, N-0033 Oslo, Norway.
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- Schjolden, Joachim (författare)
- Norwegian Univ Life Sci, Dept Anim & Agr Sci, POB 1432, As, Norway.
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- Winberg, Svante (författare)
- Uppsala universitet,Fysiologi
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- Vindas, Marco A. (författare)
- Uni Res AS, Uni Environm, NO-5020 Bergen, Norway.
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- Mayer, Ian (författare)
- Norwegian Univ Life Sci, Dept Prod Anim Clin Sci, POB 8146 Dep, N-0033 Oslo, Norway.
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- Hillestad, Marie (författare)
- BioMar AS, Nordre Gate 11, N-7011 Trondheim, Norway.
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Norwegian Inst Water Res NIVA, Gaustadalleen 21, N-0349 Oslo, Norway;Univ Agder, Ctr Coastal Res, Postboks 422, N-4604 Kristiansand, Norway. Norwegian Univ Life Sci, Dept Anim & Agr Sci, POB 1432, As, Norway. (creator_code:org_t)
- Cambridge University Press, 2017
- 2017
- Engelska.
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Ingår i: British Journal of Nutrition. - : Cambridge University Press. - 0007-1145 .- 1475-2662. ; 117:10, s. 1351-1357
- Relaterad länk:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- Comparative models suggest that effects of dietary tryptophan (Trp) on brain serotonin (5-hydroxytryptamine; 5-HT) neurochemistry and stress responsiveness are present throughout the vertebrate lineage. Moreover, hypothalamic 5-HT seems to play a central role in control of the neuroendocrine stress axis in all vertebrates. Still, recent fish studies suggest long-term effects of dietary Trp on stress responsiveness, which are independent of hypothalamic 5-HT. Here, we investigated if dietary Trp treatment may result in long-lasting effects on stress responsiveness, including changes in plasma cortisol levels and 5-HT neurochemistry in the telencephalon and hypothalamus of Atlantic salmon. Fish were fed diets containing one, two or three times the Trp content in normal feed for 1 week. Subsequently, fish were reintroduced to control feed and were exposed to acute crowding stress for 1 h, 8 and 21 d post Trp treatment. Generally, acute crowding resulted in lower plasma cortisol levels in fish treated with 3xTrp compared with 1xTrp- and 2xTrp-treated fish. The same general pattern was reflected in telencephalic 5-HTergic turnover, for which 3xTrp-treated fish showed decreased values compared with 2xTrp-treated fish. These long-term effects on post-stress plasma cortisol levels and concomitant 5-HT turnover in the telencephalon lends further support to the fact that the extrahypothalamic control of the neuroendocrine stress response is conserved within the vertebrate lineage. Moreover, they indicate that trophic/structural effects in the brain underlie the effects of dietary Trp treatment on stress reactivity.
Ämnesord
- MEDICIN OCH HÄLSOVETENSKAP -- Hälsovetenskap -- Näringslära (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Health Sciences -- Nutrition and Dietetics (hsv//eng)
Nyckelord
- L-Tryptophan
- Long-term effects
- Monoamines
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- ref (ämneskategori)
- art (ämneskategori)
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Höglund, Erik
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Overli, Oyvind
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Andersson, Madel ...
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Silva, Patricia
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Laursen, Daniell ...
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Moltesen, Maria ...
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visa fler...
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Krogdahl, Åshild
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Schjolden, Joach ...
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Winberg, Svante
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Vindas, Marco A.
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Mayer, Ian
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Hillestad, Marie
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