Cerebral 5-HT2A receptor and serotonin transporter binding in humans are not affected by the val66met BDNF polymorphism status or blood BDNF levels

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Anders Bue Klein, Viktorija Trajkovska, David Erritzoe, Steven Haugbol, Jacob Madsen, William Baaré, Susana Aznar, Gitte M Knudsen

Recent studies have proposed an interrelation between the brain-derived neurotrophic factor (BDNF) val66met polymorphism and the serotonin system. In this study, we investigated whether the BDNF val66met polymorphism or blood BDNF levels are associated with cerebral 5-hydroxytryptamine 2A (5-HT(2A)) receptor or serotonin transporter (SERT) binding in healthy subjects. No statistically significant differences in 5-HT(2A) receptor or SERT binding were found between the val/val and met carriers, nor were blood BDNF values associated with SERT binding or 5-HT(2A) receptor binding. In conclusion, val66met BDNF polymorphism status is not associated with changes in the serotonergic system. Moreover, BDNF levels in blood do not correlate with either 5-HT(2A) or SERT binding.
Original languageEnglish
JournalJournal of Cerebral Blood Flow and Metabolism
Issue number11
Pages (from-to)e1-7
Publication statusPublished - 1 Nov 2010

ID: 34143150