PMID- 19363274 OWN - NLM STAT- MEDLINE DCOM- 20091216 LR - 20220408 IS - 1875-8908 (Electronic) IS - 1387-2877 (Print) IS - 1387-2877 (Linking) VI - 17 IP - 2 DP - 2009 TI - Brain-derived neurotrophic factor levels in Alzheimer's disease. PG - 337-41 LID - 10.3233/JAD-2009-1051 [doi] AB - The current search for biomarkers that are diagnostic and/or prognostic of Alzheimer's disease (AD) is of vital importance given the rapidly aging population. It was recently reported that brain-derived neurotrophic factor (BDNF) fluctuated according to AD severity, suggesting that BDNF might have utility for diagnostics and monitoring of therapeutic efficacy. The current study sought to examine whether BDNF levels varied according to AD severity, as previously reported. There were 196 participants (Probable AD, n = 98; Controls, n = 98) in the Texas Alzheimer's Research Consortium (TARC) Longitudinal Research Cohort available for analysis. BDNF levels were assayed via multiplex immunoassay. Regression analyses were utilized to examine the relation between BDNF levels, Mini-Mental Status Examination, and Clinical Dementia Rating scores adjusting for age and gender. In adjusted models, BDNF levels did not distinguish between AD patients and normal controls and did not significantly predict AD severity or global cognitive functioning. In conclusion, these findings do not support the notion that BDNF serves as a diagnostic marker for AD or disease severity. It is likely that the most accurate approach to identifying biomarkers of AD will be through an algorithmic approach that combines multiple markers reflective of various pathways. FAU - O'Bryant, Sid E AU - O'Bryant SE AD - Texas Tech University Health Science Center, Department of Neurology, 3601 4th St. STOP 8321, Lubbock, TX 79430, USA. sid.obryant@ttuhsc.edu FAU - Hobson, Valerie AU - Hobson V FAU - Hall, James R AU - Hall JR FAU - Waring, Stephen C AU - Waring SC FAU - Chan, Wenyan AU - Chan W FAU - Massman, Paul AU - Massman P FAU - Lacritz, Laura AU - Lacritz L FAU - Cullum, C Munro AU - Cullum CM FAU - Diaz-Arrastia, Ramon AU - Diaz-Arrastia R CN - Texas Alzheimer's Research Consortium LA - eng GR - P30 AG012300/AG/NIA NIH HHS/United States GR - P30 AG012300-15/AG/NIA NIH HHS/United States GR - P30AG12300/AG/NIA NIH HHS/United States PT - Journal Article PT - Research Support, N.I.H., Extramural PT - Research Support, Non-U.S. Gov't PL - Netherlands TA - J Alzheimers Dis JT - Journal of Alzheimer's disease : JAD JID - 9814863 RN - 0 (Brain-Derived Neurotrophic Factor) SB - IM MH - Aged MH - Aged, 80 and over MH - Alzheimer Disease/*blood MH - Brain-Derived Neurotrophic Factor/*blood MH - Cohort Studies MH - Female MH - Humans MH - Immunoassay/methods MH - Male MH - Mental Status Schedule MH - Middle Aged PMC - PMC2787708 MID - NIHMS99051 FIR - Doody, Rachelle IR - Doody R FIR - Capriles, Violeta IR - Capriles V FIR - Darby, Eveleen IR - Darby E FIR - Szigeti, Kinga IR - Szigeti K FIR - Williams, Benjamin IR - Williams B FIR - Zhang, Yan IR - Zhang Y FIR - Fairchild, Thomas IR - Fairchild T FIR - Knebl, Janice IR - Knebl J FIR - Mains, Douglas IR - Mains D FIR - Alvarez, Lisa IR - Alvarez L FIR - Adams, Perrie IR - Adams P FIR - Rosenberg, Roger IR - Rosenberg R FIR - Reisch, Joan IR - Reisch J FIR - Svetlik, Doris IR - Svetlik D FIR - Williams, Keverly IR - Williams K FIR - Naylor, Joey IR - Naylor J FIR - Smith, Janet IR - Smith J EDAT- 2009/04/14 09:00 MHDA- 2009/12/17 06:00 PMCR- 2009/12/03 CRDT- 2009/04/14 09:00 PHST- 2009/04/14 09:00 [entrez] PHST- 2009/04/14 09:00 [pubmed] PHST- 2009/12/17 06:00 [medline] PHST- 2009/12/03 00:00 [pmc-release] AID - 052G70T078857553 [pii] AID - 10.3233/JAD-2009-1051 [doi] PST - ppublish SO - J Alzheimers Dis. 2009;17(2):337-41. doi: 10.3233/JAD-2009-1051.