Barber, Robert C.
Mayo Clinic
University of North Texas Health Science Center
Citations 5
Validation of a Serum Screen for Alzheimer's Disease Across Assay Platforms, Species, and Tissues
O’Bryant, Sid E. , Zhang, Fan , German, Dwight C., Yin, Xiangling, Como, Tori, Reisch, Joan, Huebinger, Ryan M. , Graff‐Radford, Neill R. , Hall, James , O’Suilleabhain, Padraig , Grammas, Paula , Xiao, Guanghua , Edwards, Melissa , Dickson, Dennis W. , Barber, Robert C. , O'Bryant, Sid
Journal of Alzheimer’s Disease | June 4, 2018 | Volume: 42 | Issue: 4 | Pages: 1325-1335
Background: There is a significant need for rapid and cost-effective biomarkers of Alzheimer’s disease (AD) for advancement of clinical practice and therapeutic trials. Objective: The aim of the current study was to cross-validate our previously published serum-based algorithm on an independent assay platform as well as validate across tissues and species. Preliminary analyses were conducted to examine the utility in distinguishing AD from non-AD neurological disease (Parkinson’s disease, PD). Methods: Serum proteins from our previously published algorithm were quantified from 150 AD cases and 150 controls on the Meso Scale Discovery (MSD) platform. Serum samples were analyzed from 49 PD cases and compared to a random sample of 51 AD cases and 62 controls. Support vector machines (SVM) were used to discriminate PD versus AD versus controls. Human and AD mouse model microvessel images were quantified with HAMAMATSU imaging software. Mouse serum biomarkers were assayed via MSD. Results: Analysis of 21 serum proteins from 150 AD cases and 150 controls yielded an algorithm with sensitivity and specificity of 0.90 for correctly classifying AD. This multi-marker approach was then validated across species and tissue. Assay of the top proteins in human and AD mouse model brain microvessels correctly classified 90–100% of the samples. SVM analyses were highly accurate at distinguishing PD versus AD versus controls. Conclusions: This serum-based biomarker panel should be tested in a community-based setting to determine its utility as a first-line screen for AD and non-AD neurological diseases for primary care providers.
Transethnic genome‐wide scan identifies novel Alzheimer's disease loci
Jun, Gyungah , Chung, Jaeyoon , Beecham, Gary W. , Bennett, David A. , Buxbaum, Joseph D. , Byrd, Goldie S. , Carrasquillo, Minerva M., Crane, Paul K. , Cruchaga, Carlos , Jager, Philip L. De , Ertekin‐Taner, Nilüfer , Evans, Denis A., Fallin, M. Danielle, Friedland, Robert P. , Goate, Alison , Graff‐Radford, Neill R. , Hendrie, Hugh C. , Hall, Kathleen, Hamilton‐Nelson, Kara L., Kukull, Walter A. , Kunkle, Brian W. , Kuwano, Ryozo, Larson, Eric B., Martin, Eden R. , Montine, Thomas J. , Reiman, Eric M. , Reitz, Christiane, Sherva, Richard , George‐Hyslop, Peter St , Thornton, Timothy, Younkin, Steven G., Wang, Li‐San , Wendlund, Jens R., Winslow, Ashley R. , Adams, Perrie M. , Albert, Marilyn S. , Albin, Roger L. , Apostolova, Liana G. , Arnold, Steven E. , Asthana, Sanjay , Atwood, Craig , Barmada, Michjael M, Beach, Thomas G. , Bigio, Eileen H. , Bird, Thomas D., Blacker, Deborah , Bowen, James D. , Boxer, Adam, Cairns, Nigel J. , Cao, Chuanhai , Carlson, Chris , Carlsson, Cynthia M., Carney, Regina M., Carroll, Steven L. , Chui, Helena C., Clark, David G., Corneveaux, Jason J., Cribbs, David H. , DeKosky, Steven T. , Demirci, F. Yesim , Dick, Malcolm, Doody, Rachelle S., Duara, Ranjan , Faber, Kelley , Fairchild, Thomas, Fallon, Kenneth B., Farlow, Martin R. , Frosch, Matthew P. , Gearing, Marla , Geschwind, Daniel H. , Gilbert, John R., Glass, Jonathan D. , Growdon, John H., Håkonarson, Håkon , Hamilton, Ronald L. , Hardy, John , Harrell, Lindy E., Huentelman, Matthew J. , Hulette, Christine M., Jarvik, Gail P. , Jicha, Gregory A. , Jin, Lee‐Way, Karydas, Anna, Koo, Edward H. , Kowall, Neil W. , Kramer, Joel H. , LaFerla, Frank M. , Leverenz, James B. , Ge, Li , Lieberman, Andrew P. , Lin, Chiao‐Feng , Lyketsos, Constantine G. , Mack, Wendy J. , Marson, Daniel , Martiniuk, Frank , Mash, Deborah C. , Masliah, Eliezer , McCormick, Wayne C., McKee, Ann C. , Mesulam, Marsel, Miller, Carol A., Miller, Joshua W., Morris, John C. , Murrell, Jill R. , Olichney, John , Parisi, Joseph E., Partch, Amanda, Paulson, Henry L. , Peskind, Elaine R. , Petersen, Ronald , Pierce, Aimee, Poon, Wayne W. , Raj, Ashok , Raskind, Murray A. , Reisch, Joan, Ringman, John M. , Rosen, Howard J., Rosenberg, Roger N., Royall, Donald R., Sager, Mark A., Sano, Mary , Saykin, Andrew J. , Schneider, Lon S. , Smith, Amanda , Sonnen, Joshua A. , Tanzi, Rudolph E. , Thornton‐Wells, Tricia A., Trojanowski, John Q. , Troncoso, Juan C. , Vinters, Harry V. , Vonsattel, Jean Paul, Weıntraub, Sandra , Wishnek, Sarah, Woltjer, Randall L. , Wright, Clinton B., Wu, Chuang‐Kuo, Yu, Chang‐En , Yu, Lei , Haines, Jonathan L. , Mayeux, Richard , Pericak‐Vance, Margaret A. , Schellenberg, Gerard, Lunetta, Kathryn L. , Farrer, Lindsay A. , Bennett, David A. , Mez, Jesse , Barber, Robert C. , Carrasquillo, Minerva M. , Cruchaga, Carlos , Foroud, Tatiana , Hamilton‐Nelson, Kara L. , Inzelberg, Rivka , Kamboh, M. Ilyas , Kauwe, John S. K. , Logue, Mark W. , Manly, Jennifer J. , Mukherjee, Shubhabrata , Naj, Adam Christian , Sherva, Richard , Vardarajan, Badri Narayan , Barnes, Lisa L. , Becker, James T. , Boeve, Bradley F. , Burke, James R. , Carlsson, Cynthia M. , Chui, Helena C. , Crocco, Elizabeth , DeCarli, Charles , Dickson, Dennis W. , Duara, Ranjan , Ferris, Steven H. , Galasko, Douglas , Ghetti, Bernardino , Green, Robert C. , Head, Elizabeth , Honig, Lawrence S. , Huebinger, Ryan , Hyman, Bradley T. , Kaye, Jeffrey , Kim, Ronald , Lah, James J. , Levey, Allan I. , Li, Ge, López, Oscar L. , McCurry, Susan M. , McDavid, Andrew , Mesulam, Marsel M. , Miller, Bruce L. , Myers, Amanda , O’Bryant, Sid E. , Pankratz, V. Shane , Perry, William , Potter, Huntington , Quinn, Joseph F. , Reisberg, Barry , Roberson, Erik D. , Rogaeva, Ekaterina A. , Schneider, Julie A. , Seeley, William W. , Spina, Salvatore , Stern, Robert A. , Tsuang, Debby W. , Deerlin, Vivianna M. Van , Eldik, Linda J. Van , Welsh-Bohmer, Kathleen Anne , Williamson, Jennifer , Zhang, Xiaoling , Hakonarson, Hakon , Saykin, Andrew J , Leverenz, James B , Jarvik, Gail P , Paulson, Henry L , Hardy, John , Morris, John C , Goate, Alison M , Jicha, Gregory A , Sonnen, Joshua
Alzheimer's & Dementia | February 6, 2017 | Volume: 13 | Issue: 7 | Pages: 727-738
Abstract Introduction Genetic loci for Alzheimer's disease (AD) have been identified in whites of European ancestry, but the genetic architecture of AD among other populations is less understood. Methods We conducted a transethnic genome‐wide association study (GWAS) for late‐onset AD in Stage 1 sample including whites of European Ancestry, African‐Americans, Japanese, and Israeli‐Arabs assembled by the Alzheimer's Disease Genetics Consortium. Suggestive results from Stage 1 from novel loci were followed up using summarized results in the International Genomics Alzheimer's Project GWAS dataset. Results Genome‐wide significant (GWS) associations in single‐nucleotide polymorphism (SNP)–based tests ( P < 5 × 10 −8 ) were identified for SNPs in PFDN1/HBEGF , USP6NL/ECHDC3 , and BZRAP1‐AS1 and for the interaction of the (apolipoprotein E) APOE ε4 allele with NFIC SNP. We also obtained GWS evidence ( P < 2.7 × 10 −6 ) for gene‐based association in the total sample with a novel locus, TPBG ( P = 1.8 × 10 −6 ). Discussion Our findings highlight the value of transethnic studies for identifying novel AD susceptibility loci.
P1–229: sTNF‐R1 as a biomarker of Alzheimer's disease varies by APOE‐ε4 status
Edwards, Melissa, Como, Tori, Hall, James , Laske, Christoph , Graff‐Radford, Neill R. , Devous, Michael D. , Johnson, Leigh , Barber, Robert C. , O’Bryant, Sid E.
Alzheimer's & Dementia | October 9, 2013 | Volume: 9 | Issue: 4S_Part_6 | Pages: No page available
P1–225: IL7 and depression: The importance of gender and blood fraction
Hall, James , Edwards, Melissa, Como, Tori, Graff‐Radford, Neill R. , Devous, Michael D. , Johnson, Leigh , Barber, Robert C. , O’Bryant, Sid E.
Alzheimer's & Dementia | October 9, 2013 | Volume: 9 | Issue: 4S_Part_6 | Pages: No page available
P1–237: Thrombopoietin and Alzheimer's disease
Edwards, Melissa, Hall, James , Xiao, Guanghua , Rohlfing, Geoffrey, Devous, Michael D. , Graff‐Radford, Neill R. , Barber, Robert C. , Johnson, Leigh , O’Bryant, Sid E.
Alzheimer's & Dementia | October 9, 2013 | Volume: 9 | Issue: 4S_Part_6 | Pages: No page available