PMID- 26207261 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20200930 IS - 2352-8729 (Print) IS - 2352-8729 (Electronic) IS - 2352-8729 (Linking) VI - 1 IP - 2 DP - 2015 Jun 1 TI - Plasma BDNF levels associate with Pittsburgh compound B binding in the brain. PG - 187-193 AB - BACKGROUND: Brain-derived neurotrophic factor (BDNF) plays an important role in Alzheimer's disease (AD) and other neurodegenerative disorders. BDNF function is adversely affected by amyloid beta (Abeta) in AD. BDNF levels in brain and peripheral tissues are lower in patients with AD and MCI, than in controls. Here we examined the association between plasma levels of BDNF and amyloid deposition in the brain measured with Pittsburgh Compound B (PiB). METHOD: Our dataset consisted of 18 AD, 56 mild cognitive impairment (MCI) and 3 normal control (NC) Alzheimer's Disease Neuroimaging Initiative-1 (ADNI1) subjects with available [(11)C] PiB and peripheral blood protein data. MRI-coregistered PET data was smoothed with a 15 mm kernel and mapped onto 3D hemispheric models using the warping deformations computed in cortical pattern matching of the associated MRI scans. We applied linear regression to examine in 3D the associations between BDNF and PiB SUVR, while adjusting for age and sex. We used permutation statistics thresholded at p<0.01 for multiple comparisons correction. RESULTS: Plasma BDNF levels showed significant negative associations with left greater than right amyloid burden in the lateral temporal, inferior parietal, inferior frontal, anterior and posterior cingulate, and orbitofrontal regions (left p(corrected)=0.03). CONCLUSIONS: As hypothesized, lower plasma levels of BDNF were significantly associated with widespread brain amyloidosis. FAU - Hwang, Kristy S AU - Hwang KS AD - Oakland University William Beaumont School of Medicine, Rochester Hills, MI USA. FAU - Lazaris, Andreas S AU - Lazaris AS AD - University of California Berkeley, Berkeley, CA, USA. FAU - Eastman, Jennifer A AU - Eastman JA AD - Northwestern University Feinberg School of Medicine, Chicago, IL, USA. FAU - Teng, Edmond AU - Teng E AD - Department of Neurology, David Geffen School of Medicine, UCLA, Los Angeles, CA, USA ; Veterans Affairs Greater Los Angeles Healthcare System, Los Angeles, CA, USA. FAU - Thompson, Paul M AU - Thompson PM AD - Imaging Genetics Center, Keck School of Medicine of USC, Marina del Rey, CA, USA. FAU - Gylys, Karen H AU - Gylys KH AD - School of Nursing, UCLA, CA, USA. FAU - Cole, Gregory M AU - Cole GM AD - Department of Neurology, David Geffen School of Medicine, UCLA, Los Angeles, CA, USA ; Veterans Affairs Greater Los Angeles Healthcare System, Los Angeles, CA, USA. FAU - Apostolova, Liana G AU - Apostolova LG AD - Department of Neurology, David Geffen School of Medicine, UCLA, Los Angeles, CA, USA ; Mary S. Easton Center for Alzheimer's Disease Research, UCLA, Los Angeles, CA, USA. CN - Alzheimer's Disease Neuroimaging Initiative LA - eng GR - K02 AG048240/AG/NIA NIH HHS/United States GR - P50 AG016570/AG/NIA NIH HHS/United States GR - R01 AG040770/AG/NIA NIH HHS/United States GR - U01 AG024904/AG/NIA NIH HHS/United States PT - Journal Article PL - United States TA - Alzheimers Dement (Amst) JT - Alzheimer's & dementia (Amsterdam, Netherlands) JID - 101654604 PMC - PMC4507280 MID - NIHMS696774 EDAT- 2015/07/25 06:00 MHDA- 2015/07/25 06:01 PMCR- 2015/04/22 CRDT- 2015/07/25 06:00 PHST- 2015/07/25 06:00 [entrez] PHST- 2015/07/25 06:00 [pubmed] PHST- 2015/07/25 06:01 [medline] PHST- 2015/04/22 00:00 [pmc-release] AID - S2352-8729(15)00039-1 [pii] AID - 10.1016/j.dadm.2015.01.005 [doi] PST - ppublish SO - Alzheimers Dement (Amst). 2015 Jun 1;1(2):187-193. doi: 10.1016/j.dadm.2015.01.005.