PMID- 24942240 OWN - NLM STAT- MEDLINE DCOM- 20150223 LR - 20191210 IS - 1423-0224 (Electronic) IS - 0302-282X (Linking) VI - 69 IP - 4 DP - 2014 TI - Urinary brain-derived neurotrophic factor as a biomarker of executive functioning. PG - 227-34 LID - 10.1159/000362242 [doi] AB - BACKGROUND/AIMS: Neurotrophins such as brain-derived neurotrophic factor (BDNF) are vital for neuronal survival and adaptive plasticity. With high BDNF gene expression in the prefrontal cortex, BDNF is a potential regulatory factor for building and maintaining cognitive reserves. Recent studies suggest that individual differences in executive functioning, a broad cognitive domain reliant upon frontal lobe structure and function, are governed in part by variance in BDNF polymorphisms. However, as neurogenetic data are not necessarily indicative of in vivo neurochemistry, this study examines the relationship between executive functioning and the neurotransmitter by measuring peripheral BDNF levels. METHODS: Fifty-two healthy young adults completed a battery of standardized executive function tests. BDNF levels, adjusted for creatinine, were quantified with enzyme-linked immunosorbent assay of urine samples taken at the time of testing. RESULTS: BDNF concentration was positively associated with cognitive flexibility but had no relationship with working memory, abstract reasoning/planning, self-monitoring/response inhibition, or fluency. CONCLUSIONS: These results individuate cognitive flexibility as the specific facet of executive functioning associated with in vivo BDNF levels. This study also validates urinary BDNF as a peripheral biomarker of cognition in healthy adults. CI - (c) 2014 S. Karger AG, Basel. FAU - Koven, Nancy S AU - Koven NS AD - Program in Neuroscience, Department of Psychology, Bates College, Lewiston, Maine, USA. FAU - Collins, Larisa R AU - Collins LR LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20140618 PL - Switzerland TA - Neuropsychobiology JT - Neuropsychobiology JID - 7512895 RN - 0 (Biomarkers) RN - 0 (Brain-Derived Neurotrophic Factor) RN - AYI8EX34EU (Creatinine) SB - IM MH - Biomarkers/urine MH - Brain-Derived Neurotrophic Factor/*urine MH - Cognition/physiology MH - Creatinine/urine MH - Enzyme-Linked Immunosorbent Assay MH - Executive Function/*physiology MH - Female MH - Humans MH - Inhibition, Psychological MH - Language MH - Male MH - Memory, Short-Term/physiology MH - Neuropsychological Tests MH - Thinking/physiology MH - Young Adult EDAT- 2014/06/20 06:00 MHDA- 2015/02/24 06:00 CRDT- 2014/06/20 06:00 PHST- 2013/09/19 00:00 [received] PHST- 2014/03/17 00:00 [accepted] PHST- 2014/06/20 06:00 [entrez] PHST- 2014/06/20 06:00 [pubmed] PHST- 2015/02/24 06:00 [medline] AID - 000362242 [pii] AID - 10.1159/000362242 [doi] PST - ppublish SO - Neuropsychobiology. 2014;69(4):227-34. doi: 10.1159/000362242. Epub 2014 Jun 18.