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Wild birds of declining European species are dying from a thiamine deficiency syndrome.
Stockholm University, Faculty of Science, Department of Applied Environmental Science (ITM).
Stockholm University, Faculty of Science, Department of Applied Environmental Science (ITM).
Stockholm University, Faculty of Science, Department of Applied Environmental Science (ITM).
Stockholm University, Faculty of Science, Department of Applied Environmental Science (ITM).
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2009 (English)In: Proceedings of the National Academy of Sciences of the United States of America, ISSN 0027-8424, E-ISSN 1091-6490, Vol. 106, no 29, 12001-12006 p.Article in journal (Refereed) Published
Abstract [en]

Wild birds of several species are dying in large numbers from an idiopathic paralytic disease in the Baltic Sea area. Here, we demonstrate strong relationships between this disease, breeding failure, and thiamine (vitamin B(1)) deficiency in eggs, pulli, and full-grown individuals. Thiamine is essential for vertebrates, and its diphosphorylated form functions as a cofactor for several life sustaining enzymes, whereas the triphosphorylated form is necessary for the functioning of neuronal membranes. Paralyzed individuals were remedied by thiamine treatment. Moreover, thiamine deficiency and detrimental effects on thiamine-dependent enzymes were demonstrated in the yolk, liver, and brain. We propose that the mortality and breeding failure are part of a thiamine deficiency syndrome, which may have contributed significantly to declines in many bird populations during the last decades.

Place, publisher, year, edition, pages
2009. Vol. 106, no 29, 12001-12006 p.
Keyword [en]
α-ketoglutarate dehydrogenase, avian, extinction, transketolase
National Category
Microbiology
Identifiers
URN: urn:nbn:se:su:diva-34605DOI: 10.1073/pnas.0902903106ISI: 000268178400035PubMedID: 19597145OAI: oai:DiVA.org:su-34605DiVA: diva2:285283
Available from: 2010-01-11 Created: 2010-01-11 Last updated: 2017-12-12Bibliographically approved

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Balk, LennartHägerroth, Per-AkeÅkerman, GunHanson, MarshaTjärnlund, UllaHansson, TomasZebühr, YngveBroman, Dag
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