{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,17]],"date-time":"2026-09-17T05:51:04Z","timestamp":1789624264726,"version":"build-2803163510"},"reference-count":38,"publisher":"National Academy of Sciences","issue":"29","content-domain":{"domain":["www.pnas.org"],"crossmark-restriction":true},"short-container-title":["Proc. Natl. Acad. Sci. U.S.A."],"published-print":{"date-parts":[[2009,7,21]]},"abstract":"<jats:p>\n                    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\n                    <jats:sub>1<\/jats:sub>\n                    ) 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.\n                  <\/jats:p>","DOI":"10.1073\/pnas.0902903106","type":"journal-article","created":{"date-parts":[[2009,7,13]],"date-time":"2009-07-13T21:53:42Z","timestamp":1247522022000},"page":"12001-12006","update-policy":"https:\/\/doi.org\/10.1073\/pnas.cm10313","source":"Crossref","is-referenced-by-count":85,"title":["Wild birds of declining European species are dying from a thiamine deficiency syndrome"],"prefix":"10.1073","volume":"106","author":[{"given":"Lennart","family":"Balk","sequence":"first","affiliation":[{"name":"Department of Applied Environmental Science, Stockholm University, SE-106 91 Stockholm, Sweden;"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Per-\u212bke","family":"H\u00e4gerroth","sequence":"additional","affiliation":[{"name":"Department of Applied Environmental Science, Stockholm University, SE-106 91 Stockholm, Sweden;"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Gun","family":"\u212bkerman","sequence":"additional","affiliation":[{"name":"Department of Applied Environmental Science, Stockholm University, SE-106 91 Stockholm, Sweden;"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Marsha","family":"Hanson","sequence":"additional","affiliation":[{"name":"Department of Applied Environmental Science, Stockholm University, SE-106 91 Stockholm, Sweden;"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ulla","family":"Tj\u00e4rnlund","sequence":"additional","affiliation":[{"name":"Department of Applied Environmental Science, Stockholm University, SE-106 91 Stockholm, Sweden;"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Tomas","family":"Hansson","sequence":"additional","affiliation":[{"name":"Department of Applied Environmental Science, Stockholm University, SE-106 91 Stockholm, Sweden;"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Gunnar Thor","family":"Hallgrimsson","sequence":"additional","affiliation":[{"name":"Institute of Biology, University of Iceland, IS-101 Reykjav\u00edk, Iceland;"},{"name":"Reykjanes Environmental Research Institute, IS-245 Sandger\u00f0i, Iceland; and"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yngve","family":"Zeb\u00fchr","sequence":"additional","affiliation":[{"name":"Department of Applied Environmental Science, Stockholm University, SE-106 91 Stockholm, Sweden;"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Dag","family":"Broman","sequence":"additional","affiliation":[{"name":"Department of Applied Environmental Science, Stockholm University, SE-106 91 Stockholm, Sweden;"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Torsten","family":"M\u00f6rner","sequence":"additional","affiliation":[{"name":"Department of Wildlife, Fish, and Environment, National Veterinary Institute, SE-751 89 Uppsala, Sweden"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Henrik","family":"Sundberg","sequence":"additional","affiliation":[{"name":"Department of Applied Environmental Science, Stockholm University, SE-106 91 Stockholm, Sweden;"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"341","published-online":{"date-parts":[[2009,7,21]]},"reference":[{"key":"e_1_3_3_1_2","first-page":"169","article-title":"Falsterbo bird station: August 1981\u2013June 1982","volume":"21","author":"Roos G","year":"1982","unstructured":"G Roos, Falsterbo bird station: August 1981\u2013June 1982. 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