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1. Prognostic relevance of gait-related cognitive functions for dementia conversion in amnestic mild cognitive impairment

Author

Tuena, C, Maestri, S, Serino, S, Pedroli, E, Stramba-Badiale, M, Riva, G, Silbert, L, Lind, B, Crissey, R, Kaye, J, Carter, R, Dolen, S, Quinn, J, Schneider, L, Pawluczyk, S, Becerra, M, Teodoro, L, Dagerman, K, Spann, B, Brewer, J, Fleisher, A, Vanderswag, H, Ziolkowski, J, Heidebrink, J, Zbizek-Nulph, L, Lord, J, Albers, C, Petersen, R, Mason, S, Knopman, D, Johnson, K, Villanueva-Meyer, J, Pavlik, V, Pacini, N, Lamb, A, Kass, J, Doody, R, Shibley, V, Chowdhury, M, Rountree, S, Dang, M, Stern, Y, Honig, L, Mintz, A, Ances, B, Morris, J, Winkfield, D, Carroll, M, Stobbs-Cucchi, G, Oliver, A, Creech, M, Mintun, M, Schneider, S, Geldmacher, D, Love, M, Griffith, R, Clark, D, Brockington, J, Marson, D, Grossman, H, Goldstein, M, Greenberg, J, Mitsis, E, Shah, R, Lamar, M, Samuels, P, Duara, R, Greig-Custo, M, Rodriguez, R, Albert, M, Onyike, C, Farrington, L, Rudow, S, Brichko, R, Kielb, S, Smith, A, Raj, B, Fargher, K, Sadowski, M, Wisniewski, T, Shulman, M, Faustin, A, Rao, J, Castro, K, Ulysse, A, Chen, S, Doraiswamy, P, Petrella, J, James, O, Wong, T, Borges-Neto, S, Karlawish, J, Wolk, D, Vaishnavi, S, Clark, C, Arnold, S, Smith, C, Jicha, G, Khouli, R, Raslau, F, Lopez, O, Oakley, M, Simpson, D, Porsteinsson, A, Martin, K, Kowalski, N, Keltz, M, Goldstein, B, Makino, K, Ismail, M, Brand, C, Thai, G, Pierce, A, Yanez, B, Sosa, E, Witbracht, M, Kelley, B, Nguyen, T, Womack, K, Mathews, D, Quiceno, M, Levey, A, Lah, J, Hajjar, I, Burns, J, Swerdlow, R, Brooks, W, Silverman, D, Kremen, S, Apostolova, L, Tingus, K, Lu, P, Bartzokis, G, Woo, E, Teng, E, Graff-Radford, N, Parfitt, F, Poki-Walker, K, Farlow, M, Hake, A, Matthews, B, Brosch, J, Herring, S, van Dyck, C, Mecca, A, Good, S, Macavoy, M, Carson, R, Varma, P, Chertkow, H, Vaitekunas, S, Hosein, C, Black, S, Stefanovic, B, Heyn, C, Hsiung, G, Kim, E, Mudge, B, Sossi, V, Feldman, H, Assaly, M, Finger, E, Pasternak, S, Rachinsky, I, Kertesz, A, Drost, D, Rogers, J, Grant, I, Muse, B, Rogalski, E, Robson, J, Mesulam, M, Kerwin, D, Wu, C, Johnson, N, Lipowski, K, Weintraub, S, Bonakdarpour, B, Pomara, N, Hernando, R, Sarrael, A, Rosen, H, Miller, B, Weiner, M, Perry, D, Turner, R, Reynolds, B, Mccann, K, Poe, J, Marshall, G, Sperling, R, Yesavage, J, Taylor, J, Chao, S, Coleman, J, White, J, Lane, B, Rosen, A, Tinklenberg, J, Belden, C, Atri, A, Clark, K, Zamrini, E, Sabbagh, M, Killiany, R, Stern, R, Mez, J, Kowall, N, Budson, A, Obisesan, T, Ntekim, O, Wolday, S, Khan, J, Nwulia, E, Nadarajah, S, Lerner, A, Ogrocki, P, Tatsuoka, C, Fatica, P, Fletcher, E, Maillard, P, Olichney, J, Decarli, C, Carmichael, O, Bates, V, Capote, H, Rainka, M, Borrie, M, Lee, T, Bartha, R, Johnson, S, Asthana, S, Carlsson, C, Perrin, A, Burke, A, Scharre, D, Kataki, M, Tarawneh, R, Hart, D, Zimmerman, E, Celmins, D, Miller, D, Ponto, L, Smith, K, Koleva, H, Shim, H, Nam, K, Schultz, S, Williamson, J, Craft, S, Cleveland, J, Yang, M, Sink, K, Ott, B, Drake, J, Tremont, G, Daiello, L, Ritter, A, Bernick, C, Munic, D, O'Connelll, A, Mintzer, J, Wiliams, A, Masdeu, J, Shi, J, Garcia, A, Newhouse, P, Potkin, S, Salloway, S, Malloy, P, Correia, S, Kittur, S, Pearlson, G, Blank, K, Anderson, K, Flashman, L, Seltzer, M, Hynes, M, Santulli, R, Relkin, N, Chiang, G, Lee, A, Lin, M, Ravdin, L, Tuena C., Maestri S., Serino S., Pedroli E., Stramba-Badiale M., Riva G., Silbert L. C., Lind B., Crissey R., Kaye J. A., Carter R., Dolen S., Quinn J., Schneider L. S., Pawluczyk S., Becerra M., Teodoro L., Dagerman K., Spann B. M., Brewer J., Fleisher A., Vanderswag H., Ziolkowski J., Heidebrink J. L., Zbizek-Nulph L., Lord J. L., Albers C. S., Petersen R., Mason S. S., Knopman D., Johnson K., Villanueva-Meyer J., Pavlik V., Pacini N., Lamb A., Kass J. S., Doody R. S., Shibley V., Chowdhury M., Rountree S., Dang M., Stern Y., Honig L. S., Mintz A., Ances B., Morris J. C., Winkfield D., Carroll M., Stobbs-Cucchi G., Oliver A., Creech M. L., Mintun M. A., Schneider S., Geldmacher D., Love M. N., Griffith R., Clark D., Brockington J., Marson D., Grossman H., Goldstein M. A., Greenberg J., Mitsis E., Shah R. C., Lamar M., Samuels P., Duara R., Greig-Custo M. T., Rodriguez R., Albert M., Onyike C., Farrington L., Rudow S., Brichko R., Kielb S., Smith A., Raj B. A., Fargher K., Sadowski M., Wisniewski T., Shulman M., Faustin A., Rao J., Castro K. M., Ulysse A., Chen S., Doraiswamy P. M., Petrella J. R., James O., Wong T. Z., Borges-Neto S., Karlawish J. H., Wolk D. A., Vaishnavi S., Clark C. M., Arnold S. E., Smith C. D., Jicha G. A., Khouli R. E., Raslau F. D., Lopez O. L., Oakley M. A., Simpson D. M., Porsteinsson A. P., Martin K., Kowalski N., Keltz M., Goldstein B. S., Makino K. M., Ismail M. S., Brand C., Thai G., Pierce A., Yanez B., Sosa E., Witbracht M., Kelley B., Nguyen T., Womack K., Mathews D., Quiceno M., Levey A. I., Lah J. J., Hajjar I., Burns J. M., Swerdlow R. H., Brooks W. M., Silverman D. H. S., Kremen S., Apostolova L., Tingus K., Lu P. H., Bartzokis G., Woo E., Teng E., Graff-Radford N. R., Parfitt F., Poki-Walker K., Farlow M. R., Hake A. M., Matthews B. R., Brosch J. R., Herring S., van Dyck C. H., Mecca A. P., Good S. P., MacAvoy M. G., Carson R. E., Varma P., Chertkow H., Vaitekunas S., Hosein C., Black S., Stefanovic B., Heyn C., Hsiung G. -Y. R., Kim E., Mudge B., Sossi V., Feldman H., Assaly M., Finger E., Pasternak S., Rachinsky I., Kertesz A., Drost D., Rogers J., Grant I., Muse B., Rogalski E., Robson J., Mesulam M. -M., Kerwin D., Wu C. -K., Johnson N., Lipowski K., Weintraub S., Bonakdarpour B., Pomara N., Hernando R., Sarrael A., Rosen H. J., Miller B. L., Weiner M. W., Perry D., Turner R. S., Reynolds B., MCCann K., Poe J., Marshall G. A., Sperling R. A., Johnson K. A., Yesavage J., Taylor J. L., Chao S., Coleman J., White J. D., Lane B., Rosen A., Tinklenberg J., Belden C. M., Atri A., Clark K. A., Zamrini E., Sabbagh M., Killiany R., Stern R., Mez J., Kowall N., Budson A. E., Obisesan T. O., Ntekim O. E., Wolday S., Khan J. I., Nwulia E., Nadarajah S., Lerner A., Ogrocki P., Tatsuoka C., Fatica P., Fletcher E., Maillard P., Olichney J., DeCarli C., Carmichael O., Bates V., Capote H., Rainka M., Borrie M., Lee T. -Y., Bartha R., Johnson S., Asthana S., Carlsson C. M., Perrin A., Burke A., Scharre D. W., Kataki M., Tarawneh R., Hart D., Zimmerman E. A., Celmins D., Miller D. D., Ponto L. L. B., Smith K. E., Koleva H., Shim H., Nam K. W., Schultz S. K., Williamson J. D., Craft S., Cleveland J., Yang M., Sink K. M., Ott B. R., Drake J., Tremont G., Daiello L. A., Drake J. D., Ritter A., Bernick C., Munic D., O'Connelll A., Mintzer J., Wiliams A., Masdeu J., Shi J., Garcia A., Newhouse P., Potkin S., Salloway S., Malloy P., Correia S., Kittur S., Pearlson G. D., Blank K., Anderson K., Flashman L. A., Seltzer M., Hynes M. L., Santulli R. B., Relkin N., Chiang G., Lee A., Lin M., Ravdin L., Tuena, C, Maestri, S, Serino, S, Pedroli, E, Stramba-Badiale, M, Riva, G, Silbert, L, Lind, B, Crissey, R, Kaye, J, Carter, R, Dolen, S, Quinn, J, Schneider, L, Pawluczyk, S, Becerra, M, Teodoro, L, Dagerman, K, Spann, B, Brewer, J, Fleisher, A, Vanderswag, H, Ziolkowski, J, Heidebrink, J, Zbizek-Nulph, L, Lord, J, Albers, C, Petersen, R, Mason, S, Knopman, D, Johnson, K, Villanueva-Meyer, J, Pavlik, V, Pacini, N, Lamb, A, Kass, J, Doody, R, Shibley, V, Chowdhury, M, Rountree, S, Dang, M, Stern, Y, Honig, L, Mintz, A, Ances, B, Morris, J, Winkfield, D, Carroll, M, Stobbs-Cucchi, G, Oliver, A, Creech, M, Mintun, M, Schneider, S, Geldmacher, D, Love, M, Griffith, R, Clark, D, Brockington, J, Marson, D, Grossman, H, Goldstein, M, Greenberg, J, Mitsis, E, Shah, R, Lamar, M, Samuels, P, Duara, R, Greig-Custo, M, Rodriguez, R, Albert, M, Onyike, C, Farrington, L, Rudow, S, Brichko, R, Kielb, S, Smith, A, Raj, B, Fargher, K, Sadowski, M, Wisniewski, T, Shulman, M, Faustin, A, Rao, J, Castro, K, Ulysse, A, Chen, S, Doraiswamy, P, Petrella, J, James, O, Wong, T, Borges-Neto, S, Karlawish, J, Wolk, D, Vaishnavi, S, Clark, C, Arnold, S, Smith, C, Jicha, G, Khouli, R, Raslau, F, Lopez, O, Oakley, M, Simpson, D, Porsteinsson, A, Martin, K, Kowalski, N, Keltz, M, Goldstein, B, Makino, K, Ismail, M, Brand, C, Thai, G, Pierce, A, Yanez, B, Sosa, E, Witbracht, M, Kelley, B, Nguyen, T, Womack, K, Mathews, D, Quiceno, M, Levey, A, Lah, J, Hajjar, I, Burns, J, Swerdlow, R, Brooks, W, Silverman, D, Kremen, S, Apostolova, L, Tingus, K, Lu, P, Bartzokis, G, Woo, E, Teng, E, Graff-Radford, N, Parfitt, F, Poki-Walker, K, Farlow, M, Hake, A, Matthews, B, Brosch, J, Herring, S, van Dyck, C, Mecca, A, Good, S, Macavoy, M, Carson, R, Varma, P, Chertkow, H, Vaitekunas, S, Hosein, C, Black, S, Stefanovic, B, Heyn, C, Hsiung, G, Kim, E, Mudge, B, Sossi, V, Feldman, H, Assaly, M, Finger, E, Pasternak, S, Rachinsky, I, Kertesz, A, Drost, D, Rogers, J, Grant, I, Muse, B, Rogalski, E, Robson, J, Mesulam, M, Kerwin, D, Wu, C, Johnson, N, Lipowski, K, Weintraub, S, Bonakdarpour, B, Pomara, N, Hernando, R, Sarrael, A, Rosen, H, Miller, B, Weiner, M, Perry, D, Turner, R, Reynolds, B, Mccann, K, Poe, J, Marshall, G, Sperling, R, Yesavage, J, Taylor, J, Chao, S, Coleman, J, White, J, Lane, B, Rosen, A, Tinklenberg, J, Belden, C, Atri, A, Clark, K, Zamrini, E, Sabbagh, M, Killiany, R, Stern, R, Mez, J, Kowall, N, Budson, A, Obisesan, T, Ntekim, O, Wolday, S, Khan, J, Nwulia, E, Nadarajah, S, Lerner, A, Ogrocki, P, Tatsuoka, C, Fatica, P, Fletcher, E, Maillard, P, Olichney, J, Decarli, C, Carmichael, O, Bates, V, Capote, H, Rainka, M, Borrie, M, Lee, T, Bartha, R, Johnson, S, Asthana, S, Carlsson, C, Perrin, A, Burke, A, Scharre, D, Kataki, M, Tarawneh, R, Hart, D, Zimmerman, E, Celmins, D, Miller, D, Ponto, L, Smith, K, Koleva, H, Shim, H, Nam, K, Schultz, S, Williamson, J, Craft, S, Cleveland, J, Yang, M, Sink, K, Ott, B, Drake, J, Tremont, G, Daiello, L, Ritter, A, Bernick, C, Munic, D, O'Connelll, A, Mintzer, J, Wiliams, A, Masdeu, J, Shi, J, Garcia, A, Newhouse, P, Potkin, S, Salloway, S, Malloy, P, Correia, S, Kittur, S, Pearlson, G, Blank, K, Anderson, K, Flashman, L, Seltzer, M, Hynes, M, Santulli, R, Relkin, N, Chiang, G, Lee, A, Lin, M, Ravdin, L, Tuena C., Maestri S., Serino S., Pedroli E., Stramba-Badiale M., Riva G., Silbert L. C., Lind B., Crissey R., Kaye J. A., Carter R., Dolen S., Quinn J., Schneider L. S., Pawluczyk S., Becerra M., Teodoro L., Dagerman K., Spann B. M., Brewer J., Fleisher A., Vanderswag H., Ziolkowski J., Heidebrink J. L., Zbizek-Nulph L., Lord J. L., Albers C. S., Petersen R., Mason S. S., Knopman D., Johnson K., Villanueva-Meyer J., Pavlik V., Pacini N., Lamb A., Kass J. S., Doody R. S., Shibley V., Chowdhury M., Rountree S., Dang M., Stern Y., Honig L. S., Mintz A., Ances B., Morris J. C., Winkfield D., Carroll M., Stobbs-Cucchi G., Oliver A., Creech M. L., Mintun M. A., Schneider S., Geldmacher D., Love M. N., Griffith R., Clark D., Brockington J., Marson D., Grossman H., Goldstein M. A., Greenberg J., Mitsis E., Shah R. C., Lamar M., Samuels P., Duara R., Greig-Custo M. T., Rodriguez R., Albert M., Onyike C., Farrington L., Rudow S., Brichko R., Kielb S., Smith A., Raj B. A., Fargher K., Sadowski M., Wisniewski T., Shulman M., Faustin A., Rao J., Castro K. M., Ulysse A., Chen S., Doraiswamy P. M., Petrella J. R., James O., Wong T. Z., Borges-Neto S., Karlawish J. H., Wolk D. A., Vaishnavi S., Clark C. M., Arnold S. E., Smith C. D., Jicha G. A., Khouli R. E., Raslau F. D., Lopez O. L., Oakley M. A., Simpson D. M., Porsteinsson A. P., Martin K., Kowalski N., Keltz M., Goldstein B. S., Makino K. M., Ismail M. S., Brand C., Thai G., Pierce A., Yanez B., Sosa E., Witbracht M., Kelley B., Nguyen T., Womack K., Mathews D., Quiceno M., Levey A. I., Lah J. J., Hajjar I., Burns J. M., Swerdlow R. H., Brooks W. M., Silverman D. H. S., Kremen S., Apostolova L., Tingus K., Lu P. H., Bartzokis G., Woo E., Teng E., Graff-Radford N. R., Parfitt F., Poki-Walker K., Farlow M. R., Hake A. M., Matthews B. R., Brosch J. R., Herring S., van Dyck C. H., Mecca A. P., Good S. P., MacAvoy M. G., Carson R. E., Varma P., Chertkow H., Vaitekunas S., Hosein C., Black S., Stefanovic B., Heyn C., Hsiung G. -Y. R., Kim E., Mudge B., Sossi V., Feldman H., Assaly M., Finger E., Pasternak S., Rachinsky I., Kertesz A., Drost D., Rogers J., Grant I., Muse B., Rogalski E., Robson J., Mesulam M. -M., Kerwin D., Wu C. -K., Johnson N., Lipowski K., Weintraub S., Bonakdarpour B., Pomara N., Hernando R., Sarrael A., Rosen H. J., Miller B. L., Weiner M. W., Perry D., Turner R. S., Reynolds B., MCCann K., Poe J., Marshall G. A., Sperling R. A., Johnson K. A., Yesavage J., Taylor J. L., Chao S., Coleman J., White J. D., Lane B., Rosen A., Tinklenberg J., Belden C. M., Atri A., Clark K. A., Zamrini E., Sabbagh M., Killiany R., Stern R., Mez J., Kowall N., Budson A. E., Obisesan T. O., Ntekim O. E., Wolday S., Khan J. I., Nwulia E., Nadarajah S., Lerner A., Ogrocki P., Tatsuoka C., Fatica P., Fletcher E., Maillard P., Olichney J., DeCarli C., Carmichael O., Bates V., Capote H., Rainka M., Borrie M., Lee T. -Y., Bartha R., Johnson S., Asthana S., Carlsson C. M., Perrin A., Burke A., Scharre D. W., Kataki M., Tarawneh R., Hart D., Zimmerman E. A., Celmins D., Miller D. D., Ponto L. L. B., Smith K. E., Koleva H., Shim H., Nam K. W., Schultz S. K., Williamson J. D., Craft S., Cleveland J., Yang M., Sink K. M., Ott B. R., Drake J., Tremont G., Daiello L. A., Drake J. D., Ritter A., Bernick C., Munic D., O'Connelll A., Mintzer J., Wiliams A., Masdeu J., Shi J., Garcia A., Newhouse P., Potkin S., Salloway S., Malloy P., Correia S., Kittur S., Pearlson G. D., Blank K., Anderson K., Flashman L. A., Seltzer M., Hynes M. L., Santulli R. B., Relkin N., Chiang G., Lee A., Lin M., and Ravdin L.

Abstract

Background: Increasing research suggests that gait abnormalities can be a risk factor for Alzheimer’s Disease (AD). Notably, there is growing evidence highlighting this risk factor in individuals with amnestic Mild Cognitive Impairment (aMCI), however further studies are needed. The aim of this study is to analyze cognitive tests results and brain-related measures over time in aMCI and examine how the presence of gait abnormalities (neurological or orthopedic) or normal gait affects these trends. Additionally, we sought to assess the significance of gait and gait-related measures as prognostic indicators for the progression from aMCI to AD dementia, comparing those who converted to AD with those who remained with a stable aMCI diagnosis during the follow-up. Methods: Four hundred two individuals with aMCI from the Alzheimer’s Disease Neuroimaging Initiative (ADNI) database were included. Robust linear mixed-effects models were used to study the impact of gait abnormalities on a comprehensive neuropsychological battery over 36 months while controlling for relevant medical variables at baseline. The impact of gait on brain measures was also investigated. Lastly, the Cox proportional-hazards model was used to explore the prognostic relevance of abnormal gait and neuropsychological associated tests. Results: While controlling for relevant covariates, we found that gait abnormalities led to a greater decline over time in attention (DSST) and global cognition (MMSE). Intriguingly, psychomotor speed (TMT-A) and divided attention (TMT-B) declined uniquely in the abnormal gait group. Conversely, specific AD global cognition tests (ADAS-13) and auditory-verbal memory (RAVLT immediate recall) declined over time independently of gait profile. All the other cognitive tests were not significantly affected by time or by gait profile. In addition, we found that ventricles size increased faster in the abnormal gait group compared to the normal gait group. In terms of prognosis, abno

Published
2023

2. A blood-based signature of cerebrospinal fluid A beta(1-42) status

Author

Goudey, B., Fung, B.J., Schieber, C., Faux, N.G., Weiner, M.W., Aisen, P., Petersen, R., Jack, C.R., Jagust, W., Trojanowki, J.Q., Toga, A.W., Beckett, L., Green, R.C., Saykin, A.J., Morris, J., Shaw, L.M., Kaye, J., Quinn, J., Silbert, L., Lind, B., Carter, R., Dolen, S., Schneider, L.S., Pawluczyk, S., Beccera, M., Teodoro, L., Spann, B.M., Brewer, J., Vanderswag, H., Fleisher, A., Heidebrink, J.L., Lord, J.L., Mason, S.S., Albers, C.S., Knopman, D., Johnson, K., Doody, R.S., Villanueva-Meyer, J., Chowdhury, M., Rountree, S., Dang, M., Stern, Y., Honig, L.S., Bell, K.L., Ances, B., Morris, J.C., Carroll, M., Creech, M.L., Franklin, E., Mintun, M.A., Schneider, S., Oliver, A., Marson, D., Griffth, R., Clark, D., Geldmacher, D., Brockington, J., Roberson, E., Natelson Love, M., Grossman, H., Mitsis, E., Shah, R.C., deToledo-Morrell, L., Duara, R., Varon, D., Greig, M.T., Roberts, P., Albert, M., Onyike, C., D'Agostino, D., Kielb, S., Galvin, J.E., Cerbone, B., Michel, C.A., Pogorelec, D.M., Rusinek, H., Leon, M.J. de, Glodzik, L., De Santi, S., Doraiswamy, P.M., Petrella, J.R., Borges-Neto, S., Wong, T.Z., Coleman, E., Smith, C.D., Jicha, G., Hardy, P., Sinha, P., Oates, E., Conrad, G., Porsteinsson, A.P., Goldstein, B.S., Martin, K., Makino, K.M., Ismail, M.S., Brand, C., Mulnard, R.A., Thai, G., McAdams-Ortiz, C., Womack, K., Mathews, D., Quiceno, M., Levey, A.I., Lah, J.J., Cellar, J.S., Burns, J.M., Swerdlow, R.H., Brooks, W.M., Apostolova, L., Tingus, K., Woo, E., Silverman, D.H.S., Lu, P.H., Bartzokis, G., Graff-Radford, N.R., Parftt, F., Kendall, T., Johnson, H., Farlow, M.R., Hake, A.M., Matthews, B.R., Brosch, J.R., Herring, S., Hunt, C., Dyck, .H. van, Carson, R.E., MacAvoy, M.G., Varma, P., Chertkow, H., Bergman, H., Hosein, C., Black, S., Stefanovic, B., Caldwell, C., Hsiung, Ging-Yuek Robin, Feldman, H., Mudge, B., Assaly, M., Finger, E., Pasternack, S., Rachisky, I., Trost, D., Kertesz, A., Bernick, C., Munic, D., Mesulam, M.-M., Lipowski, K., Weintraub, S., Bonakdarpour, B., Kerwin, D., Wu, C.-K., Johnson, N., Sadowsky, C., Villena, T., Turner, R.S., Reynolds, B., Sperling, R.A., Johnson, K.A., Marshall, G., Yesavage, J., Taylor, J.L., Lane, B., Rosen, A., Tinklenberg, J., Sabbagh, M.N., Belden, C.M., Jacobson, S.A., Sirrel, S.A., Kowall, N., Killiany, R., Budson, A.E., Norbash, A., Johnson, P.L., Obisesan, T.O., Wolday, S., Allard, J., Lerner, A., Ogrocki, P., Tatsuoka, C., Fatica, P., Fletcher, E., Maillard, P., Olichney, J., DeCarli, C., Carmichael, O., Kittur, S., Borrie, M., Lee, T.-Y., Bartha, R., Johnson, S., Asthana, S., Carlsson, C.M., Potkin, S.G., Preda, A., Nguyen, D., Tariot, P., Burke, A., Trncic, N., Reeder, S., Bates, V., Capote, H., Rainka, M., Scharre, D.W., Kataki, M., Adeli, A., Zimmerman, E.A., Celmins, D., Brown, A.D., Pearlson, G.D., Blank, K., Anderson, K., Flashman, L.A., Seltzer, M., Hynes, M.L., Santulli, R.B., Sink, K.M., Gordineer, L., Williamson, J.D., Garg, P., Watkins, F., Ott, B.R., Querfurth, H., Tremont, G., Salloway, S., Malloy, P., Correia, S., Rosen, H.J., Miller, B.L., Perry, D., Mintzer, J., Spicer, K., Bachman, D., Pomara, N., Hernando, R., Sarrael, A., Relkin, N., Chaing, G., Lin, M., Ravdin, L., Smith, A., Raj, B.A., Fargher, K., Saykin, A., Nho, K., Kling, M., Toledo, J., Shaw, L., Trojanowski, J., Farrer, L., Kastsenmueller, G., Arnold, M., Wishart, D., Wurtz, P., Bhattcharyya, S., Duijin, C. van, Mangravite, L., Han, X., Hankemeier, T., Fiehn, O., Barupal, D., Thiele, I., Heinken, A., Meikle, P., Price, N., Funk, C., Jia, W., Kueider-Paisley, A., Tenebaum, J., Black, C., Moseley, A., Thompson, W., Mahmoudiandehkorki, S., Baillie, R., Welsh-Bohmer, K., Plassman, B., and Epidemiology

Subjects
Male, 0301 basic medicine, Apolipoprotein E, Oncology, medicine.medical_specialty, Amyloid, Amyloid beta, lcsh:Medicine, Article, 03 medical and health sciences, Apolipoproteins E, 0302 clinical medicine, Cerebrospinal fluid, Alzheimer Disease, Predictive Value of Tests, Internal medicine, medicine, Humans, Dementia, Cognitive decline, lcsh:Science, Aged, Aged, 80 and over, Amyloid beta-Peptides, Multidisciplinary, biology, Chemokine CCL26, business.industry, lcsh:R, Alzheimer’s Disease Metabolomics Consortium, Alzheimer’s Disease Neuroimaging Initiative, medicine.disease, Peptide Fragments, 3. Good health, 030104 developmental biology, biology.protein, Chromogranin A, Female, lcsh:Q, Alzheimer's disease, business, Biomarkers, 030217 neurology & neurosurgery, Alzheimer's Disease Neuroimaging Initiative
Abstract

It is increasingly recognized that Alzheimer’s disease (AD) exists before dementia is present and that shifts in amyloid beta occur long before clinical symptoms can be detected. Early detection of these molecular changes is a key aspect for the success of interventions aimed at slowing down rates of cognitive decline. Recent evidence indicates that of the two established methods for measuring amyloid, a decrease in cerebrospinal fluid (CSF) amyloid β1−42 (Aβ1−42) may be an earlier indicator of Alzheimer’s disease risk than measures of amyloid obtained from Positron Emission Tomography (PET). However, CSF collection is highly invasive and expensive. In contrast, blood collection is routinely performed, minimally invasive and cheap. In this work, we develop a blood-based signature that can provide a cheap and minimally invasive estimation of an individual’s CSF amyloid status using a machine learning approach. We show that a Random Forest model derived from plasma analytes can accurately predict subjects as having abnormal (low) CSF Aβ1−42 levels indicative of AD risk (0.84 AUC, 0.78 sensitivity, and 0.73 specificity). Refinement of the modeling indicates that only APOEε4 carrier status and four plasma analytes (CGA, Aβ1−42, Eotaxin 3, APOE) are required to achieve a high level of accuracy. Furthermore, we show across an independent validation cohort that individuals with predicted abnormal CSF Aβ1−42 levels transitioned to an AD diagnosis over 120 months significantly faster than those with predicted normal CSF Aβ1−42 levels and that the resulting model also validates reasonably across PET Aβ1−42 status (0.78 AUC). This is the first study to show that a machine learning approach, using plasma protein levels, age and APOEε4 carrier status, is able to predict CSF Aβ1−42 status, the earliest risk indicator for AD, with high accuracy.

Published
2019

3. Uncovering the heterogeneity and temporal complexity of neurodegenerative diseases with Subtype and Stage Inference

Author

Young, A. L., Marinescu, R. V., Oxtoby, N. P., Bocchetta, M., Yong, K., Firth, N. C., Cash, D. M., Thomas, D. L., Dick, K. M., Cardoso, J., van Swieten, J., Borroni, B., Galimberti, D., Masellis, M., Tartaglia, M. C., Rowe, J. B., Graff, C., Tagliavini, F., Frisoni, G. B., Laforce, R., Finger, E., de Mendonca, A., Sorbi, S., Warren, J. D., Crutch, S., Fox, N. C., Ourselin, S., Schott, J. M., Rohrer, J. D., Alexander, D. C., Andersson, C., Archetti, S., Arighi, A., Benussi, L., Binetti, G., Black, S., Cosseddu, M., Fallstrom, M., Ferreira, C., Fenoglio, C., Freedman, M., Fumagalli, G. G., Gazzina, S., Ghidoni, R., Grisoli, M., Jelic, V., Jiskoot, L., Keren, R., Lombardi, G., Maruta, C., Meeter, L., Mead, S., van Minkelen, R., Nacmias, B., Oijerstedt, L., Padovani, A., Panman, J., Pievani, M., Polito, C., Premi, E., Prioni, S., Rademakers, R., Redaelli, V., Rogaeva, E., Rossi, G., Rossor, M., Scarpini, E., Tang-Wai, D., Thonberg, H., Tiraboschi, P., Verdelho, A., Weiner, M. W., Aisen, P., Petersen, R., Jack, C. R., Jagust, W., Trojanowki, J. Q., Toga, A. W., Beckett, L., Green, R. C., Saykin, A. J., Morris, J., Shaw, L. M., Khachaturian, Z., Sorensen, G., Kuller, L., Raichle, M., Paul, S., Davies, P., Fillit, H., Hefti, F., Holtzman, D., Mesulam, M. M., Potter, W., Snyder, P., Schwartz, A., Montine, T., Thomas, R. G., Donohue, M., Walter, S., Gessert, D., Sather, T., Jiminez, G., Harvey, D., Bernstein, M., Thompson, P., Schuff, N., Borowski, B., Gunter, J., Senjem, M., Vemuri, P., Jones, D., Kantarci, K., Ward, C., Koeppe, R. A., Foster, N., Reiman, E. M., Chen, K., Mathis, C., Landau, S., Cairns, N. J., Householder, E., Taylor-Reinwald, L., Lee, V., Korecka, M., Figurski, M., Crawford, K., Neu, S., Foroud, T. M., Potkin, S., Shen, L., Faber, K., Kim, S., Nho, K., Thal, L., Buckholtz, N., Albert, M., Frank, R., Hsiao, J., Kaye, J., Quinn, J., Lind, B., Carter, R., Dolen, S., Schneider, L. S., Pawluczyk, S., Beccera, M., Teodoro, L., Spann, B. M., Brewer, J., Vanderswag, H., Fleisher, A., Heidebrink, J. L., Lord, J. L., Mason, S. S., Albers, C. S., Knopman, D., Johnson, K., Doody, R. S., Villanueva-Meyer, J., Chowdhury, M., Rountree, S., Dang, M., Stern, Y., Honig, L. S., Bell, K. L., Ances, B., Carroll, M., Leon, S., Mintun, M. A., Schneider, S., Oliver, A., Marson, D., Griffith, R., Clark, D., Geldmacher, D., Brockington, J., Roberson, E., Grossman, H., Mitsis, E., de Toledo-Morrell, L., Shah, R. C., Duara, R., Varon, D., Greig, M. T., Roberts, P., Onyike, C., D'Agostino, D., Kielb, S., Galvin, J. E., Cerbone, B., Michel, C. A., Rusinek, H., de Leon, M. J., Glodzik, L., De Santi, S., Doraiswamy, P. M., Petrella, J. R., Wong, T. Z., Arnold, S. E., Karlawish, J. H., Wolk, D., Smith, C. D., Jicha, G., Hardy, P., Sinha, P., Oates, E., Conrad, G., Lopez, O. L., Oakley, M. A., Simpson, D. M., Porsteinsson, A. P., Goldstein, B. S., Martin, K., Makino, K. M., Ismail, M. S., Brand, C., Mulnard, R. A., Thai, G., Mc-Adams-Ortiz, C., Womack, K., Mathews, D., Quiceno, M., Diaz-Arrastia, R., King, R., Weiner, M., Martin-Cook, K., Devous, M., Levey, A. I., Lah, J. J., Cellar, J. S., Burns, J. M., Anderson, H. S., Swerdlow, R. H., Apostolova, L., Tingus, K., Woo, E., Silverman, D. H., P. H., Lu, Bartzokis, G., Graff-Radford, N. R., Parfitt, F., Kendall, T., Johnson, H., Farlow, M. R., Hake, A. M., Matthews, B. R., Herring, S., Hunt, C., van Dyck, C. H., Carson, R. E., Macavoy, M. G., Chertkow, H., Bergman, H., Hosein, C., Stefanovic, B., Caldwell, C., Hsiung, G. -Y. R., Feldman, H., Mudge, B., Assaly, M., Kertesz, A., Rogers, J., Bernick, C., Munic, D., Kerwin, D., Mesulam, M. -M., Lipowski, K., C. -K., Wu, Johnson, N., Sadowsky, C., Martinez, W., Villena, T., Turner, R. S., Reynolds, B., Sperling, R. A., Johnson, K. A., Marshall, G., Frey, M., Lane, B., Rosen, A., Tinklenberg, J., Sabbagh, M. N., Belden, C. M., Jacobson, S. A., Sirrel, S. A., Kowall, N., Killiany, R., Budson, A. E., Norbash, A., Johnson, P. L., Allard, J., Lerner, A., Ogrocki, P., Hudson, L., Fletcher, E., Carmichael, O., Olichney, J., Decarli, C., Kittur, S., Borrie, M., Lee, T. -Y., Bartha, R., Johnson, S., Asthana, S., Carlsson, C. M., Potkin, S. G., Preda, A., Nguyen, D., Tariot, P., Reeder, S., Bates, V., Capote, H., Rainka, M., Scharre, D. W., Kataki, M., Adeli, A., Zimmerman, E. A., Celmins, D., Brown, A. D., Pearlson, G. D., Blank, K., Anderson, K., Santulli, R. B., Kitzmiller, T. J., Schwartz, E. S., Sink, K. M., Williamson, J. D., Garg, P., Watkins, F., Ott, B. R., Querfurth, H., Tremont, G., Salloway, S., Malloy, P., Correia, S., Rosen, H. J., Miller, B. L., Mintzer, J., Spicer, K., Bachman, D., Pasternak, S., Rachinsky, I., Drost, D., Pomara, N., Hernando, R., Sarrael, A., Schultz, S. K., Ponto, L. L. B., Shim, H., Smith, K. E., Relkin, N., Chaing, G., Raudin, L., Smith, A., Fargher, K., Raj, B. A., Neylan, T., Grafman, J., Davis, M., Morrison, R., Hayes, J., Finley, S., Friedl, K., Fleischman, D., Arfanakis, K., James, O., Massoglia, D., Fruehling, J. J., Harding, S., Peskind, E. R., Petrie, E. C., Li, G., Yesavage, J. A., Taylor, J. L., and Furst, A. J.

Published
2018

4. Association of common genetic variants in GPCPD1 with scaling of visual cortical surface area in humans

Author

Bakken, TE, Roddey, JC, Djurovic, S, Akshoomoff, N, Amaral, DG, Bloss, CS, Casey, BJ, Chang, L, Ernst, TM, Gruen, JR, Jernigan, TL, Kaufmann, WE, Kenet, T, Kennedy, DN, Kuperman, JM, Murray, SS, Sowell, ER, Rimol, LM, Mattingsdal, M, Melle, I, Agartz, I, Andreassen, OA, Schork, NJ, Dale, AM, Alzheimer’s Disease Neuroimaging Initiative, Pediatric Imaging, Neurocognition, Genetics Study, Weiner, M, Aisen, P, Petersen, R, Jack, CR, Jr, Jagust, W, Trojanowki, JQ, Toga, AW, Beckett, L, Green, RC, Saykin, AJ, Morris, J, Liu, E, Montine, T, Gamst, A, Thomas, RG, Donohue, M, Walter, S, Gessert, D, Sather, T, Harvey, D, Kornak, J, Dale, A, Bernstein, M, Felmlee, J, Fox, N, Thompson, P, Schuff, N, Alexander, G, DeCarli, C, Bandy, D, Koeppe, RA, Foster, N, Reiman, EM, Chen, K, Mathis, C, Cairns, NJ, Taylor-Reinwald, L, Shaw, L, Lee, VM, Korecka, M, Crawford, K, Neu, S, Foroud, TM, Potkin, S, Shen, L, Kachaturian, Z, Frank, R, Snyder, PJ, Molchan, S, Kaye, J, Quinn, J, Lind, B, Dolen, S, Schneider, LS, Pawluczyk, S, Spann, BM, Brewer, J, Vanderswag, H, Heidebrink, JL, Lord, JL, Johnson, K, Doody, RS, Villanueva-Meyer, J, Chowdhury, M, Stern, Yaakov, Honig, LS, Bell, KL, Morris, JC, Ances, B, Carroll, M, Leon, S, Mintun, MA, Schneider, S, Marson, D, Griffith, R, Clark, D, Grossman, H, Mitsis, E, Romirowsky, A, deToledo-Morrell, L, Shah, RC, Duara, R, Varon, D, Roberts, P, Albert, M, Onyike, C, Kielb, S, Rusinek, H, de, Leon, MJ, Glodzik, L, De, Santi, S, Doraiswamy, PM, Petrella, JR, Coleman, RE, Arnold, SE, Karlawish, JH, Wolk, D, Smith, CD, Jicha, G, Hardy, P, Lopez, OL, Oakley, M, Simpson, DM, Porsteinsson, AP, Goldstein, BS, Martin, K, Makino, KM, Ismail, MS, Brand, C, Mulnard, RA, Thai, G, Mc-Adams-Ortiz, C, Womack, K, Mathews, D, Quiceno, M, Diaz-Arrastia, R, King, R, Martin-Cook, K, DeVous, M, Levey, AI, Lah, JJ, Cellar, JS, Burns, JM, Anderson, HS, Swerdlow, RH, Apostolova, L, Lu, PH, Bartzokis, G, Silverman, DH, Graff-Radford, NR, Parfitt, F, Johnson, H, Farlow, MR, Hake, AM, Matthews, BR, Herring, S, van, Dyck, CH, Carson, RE, MacAvoy, MG, Chertkow, H, Bergman, H, Hosein, C, Black, S, Stefanovic, B, Caldwell, C, Ging-Yuek, Hsiung, R, Feldman, H, Mudge, B, Assaly, M, Kertesz, A, Rogers, J, Trost, D, Bernick, C, Munic, D, Kerwin, D, Mesulam, MM, Lipowski, K, Wu, CK, Johnson, N, Sadowsky, C, Martinez, W, Villena, T, Turner, RS, Reynolds, B, Sperling, RA, Johnson, KA, Marshall, G, Frey, M, Yesavage, J, Taylor, JL, Lane, B, Rosen, A, Tinklenberg, J, Sabbagh, M, Belden, C, Jacobson, S, Kowall, N, Killiany, R, Budson, AE, Norbash, A, Johnson, PL, Obisesan, TO, Wolday, S, Bwayo, SK, Lerner, A, Hudson, L, Ogrocki, P, Fletcher, E, Carmichael, O, Olichney, J, Kittur, S, Borrie, M, Lee, TY, Bartha, R, Johnson, S, Asthana, S, Carlsson, CM, Potkin, SG, Preda, A, Nguyen, D, Tariot, P, Fleisher, A, Reeder, S, Bates, V, Capote, H, Rainka, M, Scharre, DW, Kataki, M, Zimmerman, EA, Celmins, D, Brown, AD, Pearlson, GD, Blank, K, Anderson, K, Santulli, RB, Schwartz, ES, Sink, KM, Williamson, JD, Garg, P, Watkins, F, Ott, BR, Querfurth, H, Tremont, G, Salloway, S, Malloy, P, Correia, S, Rosen, HJ, Miller, BL, Mintzer, J, Longmire, CF, Spicer, K, Finger, E, Rachinsky, I, Drost, D, Jernigan, T, McCabe, C, Grant, E, Ernst, T, Kuperman, J, Chung, Y, Murray, S, Bloss, C, Darst, B, Pritchett, L, Saito, A, Amaral, D, DiNino, M, Eyngorina, B, Sowell, E, Houston, S, Soderberg, L, Kaufmann, W, van, Zijl, P, Rizzo-Busack, H, Javid, M, Mehta, N, Ruberry, E, Powers, A, Rosen, B, Gebhard, N, Manigan, H, Frazier, J, Kennedy, D, Yakutis, L, Hill, M, Gruen, J, Bosson-Heenan, J, and Carlson, H

Subjects
anatomy & histology, pathology [Visual Cortex], Adult, Diagnostic Imaging, Male, Linkage disequilibrium, Visual perception, genetic structures, Adolescent, Genotype, Imaging genetics, methods [Diagnostic Imaging], Single-nucleotide polymorphism, Genome-wide association study, Saccharomyces cerevisiae, Biology, Polymorphism, Single Nucleotide, Cohort Studies, methods [Brain Mapping], pathology [Brain], Cortex (anatomy), Genetic variation, Medicine and Health Sciences, medicine, Humans, genetics [Phosphoric Diester Hydrolases], Aged, Visual Cortex, Genetics, Brain Mapping, Multidisciplinary, Models, Genetic, Phosphoric Diester Hydrolases, metabolism [Saccharomyces cerevisiae], Brain, Genetic Variation, Genomics, Middle Aged, Biological Sciences, Visual cortex, medicine.anatomical_structure, Female, Genome-Wide Association Study
Abstract

Visual cortical surface area varies two- to threefold between human individuals, is highly heritable, and has been correlated with visual acuity and visual perception. However, it is still largely unknown what specific genetic and environmental factors contribute to normal variation in the area of visual cortex. To identify SNPs associated with the proportional surface area of visual cortex, we performed a genome-wide association study followed by replication in two independent cohorts. We identified one SNP (rs6116869) that replicated in both cohorts and had genome-wide significant association ( P combined = 3.2 × 10 −8 ). Furthermore, a metaanalysis of imputed SNPs in this genomic region identified a more significantly associated SNP (rs238295; P = 6.5 × 10 −9 ) that was in strong linkage disequilibrium with rs6116869. These SNPs are located within 4 kb of the 5′ UTR of GPCPD1 , glycerophosphocholine phosphodiesterase GDE1 homolog ( Saccharomyces cerevisiae ), which in humans, is more highly expressed in occipital cortex compared with the remainder of cortex than 99.9% of genes genome-wide. Based on these findings, we conclude that this common genetic variation contributes to the proportional area of human visual cortex. We suggest that identifying genes that contribute to normal cortical architecture provides a first step to understanding genetic mechanisms that underlie visual perception.

Published
2012

5. Generative FDG-PET and MRI model of aging and disease progression in Alzheimer's disease.

Author

Alzheimer's Disease Neuroimaging Initiative, Weiner, M., Aisen, P., Petersen, R., Jack CR.<Suffix>Jr</Suffix>, Jagust, W., Trojanowki, JQ., Toga, AW., Beckett, L., Green, RC., Saykin, AJ., Morris, J., Liu, E., Montine, T., Gamst, A., Thomas, RG., Donohue, M., Walter, S., Gessert, D., Sather, T., Harvey, D., Kornak, J., Dale, A., Bernstein, M., Felmlee, J., Fox, N., Thompson, P., Schuff, N., DeCarli, C., Bandy, D., Koeppe, RA., Foster, N., Reiman, EM., Chen, K., Mathis, C., Cairns, NJ., Taylor-Reinwald, L., Shaw, L., Lee, VM., Korecka, M., Crawford, K., Neu, S., Foroud, TM., Potkin, S., Shen, L., Kachaturian, Z., Frank, R., Snyder, PJ., Molchan, S., Kaye, J., Quinn, J., Lind, B., Dolen, S., Schneider, LS., Pawluczyk, S., Spann, BM., Brewer, J., Vanderswag, H., Heidebrink, JL., Lord, JL., Johnson, K., Doody, RS., Villanueva-Meyer, J., Chowdhury, M., Stern, Y., Honig, LS., Bell, KL., Morris, JC., Ances, B., Carroll, M., Leon, S., Mintun, MA., Schneider, S., Marson, D., Griffith, R., Clark, D., Grossman, H., Mitsis, E., Romirowsky, A., deToledo-Morrell, L., Shah, RC., Duara, R., Varon, D., Roberts, P., Albert, M., Onyike, C., Kielb, S., Rusinek, H., de Leon MJ., Glodzik, L., De Santi, S., Doraiswamy, P., Petrella, JR., Coleman, R., Arnold, SE., Karlawish, JH., Wolk, D., Smith, CD., Jicha, G., Hardy, P., Lopez, OL., Oakley, M., Simpson, DM., Porsteinsson, AP., Goldstein, BS., Martin, K., Makino, KM., Ismail, M., Brand, C., Mulnard, RA., Thai, G., Mc-Adams-Ortiz, C., Womack, K., Mathews, D., Quiceno, M., Diaz-Arrastia, R., King, R., Martin-Cook, K., DeVous, M., Levey, AI., Lah, JJ., Cellar, JS., Burns, JM., Anderson, HS., Swerdlow, RH., Apostolova, L., Lu, PH., Bartzokis, G., Silverman, DH., Graff-Radford, NR., Parfitt, F., Johnson, H., Farlow, MR., Hake, AM., Matthews, BR., Herring, S., van Dyck CH., Carson, RE., MacAvoy, MG., Chertkow, H., Bergman, H., Hosein, C., Black, S., Stefanovic, B., Caldwell, C., Hsiung, GY., Feldman, H., Mudge, B., Assaly, M., Kertesz, A., Rogers, J., Trost, D., Bernick, C., Munic, D., Kerwin, D., Mesulam, MM., Lipowski, K., Wu, CK., Johnson, N., Sadowsky, C., Martinez, W., Villena, T., Turner, RS., Reynolds, B., Sperling, RA., Johnson, KA., Marshall, G., Frey, M., Yesavage, J., Taylor, JL., Lane, B., Rosen, A., Tinklenberg, J., Sabbagh, M., Belden, C., Jacobson, S., Kowall, N., Killiany, R., Budson, AE., Norbash, A., Johnson, PL., Obisesan, TO., Wolday, S., Bwayo, SK., Lerner, A., Hudson, L., Ogrocki, P., Fletcher, E., Carmichael, O., Olichney, J., Kittur, S., Borrie, M., Lee, TY., Bartha, R., Johnson, S., Asthana, S., Carlsson, CM., Potkin, SG., Preda, A., Nguyen, D., Tariot, P., Fleisher, A., Reeder, S., Bates, V., Capote, H., Rainka, M., Scharre, DW., Kataki, M., Zimmerman, EA., Celmins, D., Brown, AD., Pearlson, GD., Blank, K., Anderson, K., Santulli, RB., Schwartz, ES., Sink, KM., Williamson, JD., Garg, P., Watkins, F., Ott, BR., Querfurth, H., Tremont, G., Salloway, S., Malloy, P., Correia, S., Rosen, HJ., Miller, BL., Mintzer, J., Longmire, CF., Spicer, K., Finger, E., Rachinsky, I., Drost, D., Dukart, J., Kherif, F., Mueller, K., Adaszewski, S., Schroeter, M.L., Frackowiak, R.S., Draganski, B., Alzheimer's Disease Neuroimaging Initiative, Weiner, M., Aisen, P., Petersen, R., Jack CR.<Suffix>Jr</Suffix>, Jagust, W., Trojanowki, JQ., Toga, AW., Beckett, L., Green, RC., Saykin, AJ., Morris, J., Liu, E., Montine, T., Gamst, A., Thomas, RG., Donohue, M., Walter, S., Gessert, D., Sather, T., Harvey, D., Kornak, J., Dale, A., Bernstein, M., Felmlee, J., Fox, N., Thompson, P., Schuff, N., DeCarli, C., Bandy, D., Koeppe, RA., Foster, N., Reiman, EM., Chen, K., Mathis, C., Cairns, NJ., Taylor-Reinwald, L., Shaw, L., Lee, VM., Korecka, M., Crawford, K., Neu, S., Foroud, TM., Potkin, S., Shen, L., Kachaturian, Z., Frank, R., Snyder, PJ., Molchan, S., Kaye, J., Quinn, J., Lind, B., Dolen, S., Schneider, LS., Pawluczyk, S., Spann, BM., Brewer, J., Vanderswag, H., Heidebrink, JL., Lord, JL., Johnson, K., Doody, RS., Villanueva-Meyer, J., Chowdhury, M., Stern, Y., Honig, LS., Bell, KL., Morris, JC., Ances, B., Carroll, M., Leon, S., Mintun, MA., Schneider, S., Marson, D., Griffith, R., Clark, D., Grossman, H., Mitsis, E., Romirowsky, A., deToledo-Morrell, L., Shah, RC., Duara, R., Varon, D., Roberts, P., Albert, M., Onyike, C., Kielb, S., Rusinek, H., de Leon MJ., Glodzik, L., De Santi, S., Doraiswamy, P., Petrella, JR., Coleman, R., Arnold, SE., Karlawish, JH., Wolk, D., Smith, CD., Jicha, G., Hardy, P., Lopez, OL., Oakley, M., Simpson, DM., Porsteinsson, AP., Goldstein, BS., Martin, K., Makino, KM., Ismail, M., Brand, C., Mulnard, RA., Thai, G., Mc-Adams-Ortiz, C., Womack, K., Mathews, D., Quiceno, M., Diaz-Arrastia, R., King, R., Martin-Cook, K., DeVous, M., Levey, AI., Lah, JJ., Cellar, JS., Burns, JM., Anderson, HS., Swerdlow, RH., Apostolova, L., Lu, PH., Bartzokis, G., Silverman, DH., Graff-Radford, NR., Parfitt, F., Johnson, H., Farlow, MR., Hake, AM., Matthews, BR., Herring, S., van Dyck CH., Carson, RE., MacAvoy, MG., Chertkow, H., Bergman, H., Hosein, C., Black, S., Stefanovic, B., Caldwell, C., Hsiung, GY., Feldman, H., Mudge, B., Assaly, M., Kertesz, A., Rogers, J., Trost, D., Bernick, C., Munic, D., Kerwin, D., Mesulam, MM., Lipowski, K., Wu, CK., Johnson, N., Sadowsky, C., Martinez, W., Villena, T., Turner, RS., Reynolds, B., Sperling, RA., Johnson, KA., Marshall, G., Frey, M., Yesavage, J., Taylor, JL., Lane, B., Rosen, A., Tinklenberg, J., Sabbagh, M., Belden, C., Jacobson, S., Kowall, N., Killiany, R., Budson, AE., Norbash, A., Johnson, PL., Obisesan, TO., Wolday, S., Bwayo, SK., Lerner, A., Hudson, L., Ogrocki, P., Fletcher, E., Carmichael, O., Olichney, J., Kittur, S., Borrie, M., Lee, TY., Bartha, R., Johnson, S., Asthana, S., Carlsson, CM., Potkin, SG., Preda, A., Nguyen, D., Tariot, P., Fleisher, A., Reeder, S., Bates, V., Capote, H., Rainka, M., Scharre, DW., Kataki, M., Zimmerman, EA., Celmins, D., Brown, AD., Pearlson, GD., Blank, K., Anderson, K., Santulli, RB., Schwartz, ES., Sink, KM., Williamson, JD., Garg, P., Watkins, F., Ott, BR., Querfurth, H., Tremont, G., Salloway, S., Malloy, P., Correia, S., Rosen, HJ., Miller, BL., Mintzer, J., Longmire, CF., Spicer, K., Finger, E., Rachinsky, I., Drost, D., Dukart, J., Kherif, F., Mueller, K., Adaszewski, S., Schroeter, M.L., Frackowiak, R.S., and Draganski, B.

Abstract

The failure of current strategies to provide an explanation for controversial findings on the pattern of pathophysiological changes in Alzheimer's Disease (AD) motivates the necessity to develop new integrative approaches based on multi-modal neuroimaging data that captures various aspects of disease pathology. Previous studies using [18F]fluorodeoxyglucose positron emission tomography (FDG-PET) and structural magnetic resonance imaging (sMRI) report controversial results about time-line, spatial extent and magnitude of glucose hypometabolism and atrophy in AD that depend on clinical and demographic characteristics of the studied populations. Here, we provide and validate at a group level a generative anatomical model of glucose hypo-metabolism and atrophy progression in AD based on FDG-PET and sMRI data of 80 patients and 79 healthy controls to describe expected age and symptom severity related changes in AD relative to a baseline provided by healthy aging. We demonstrate a high level of anatomical accuracy for both modalities yielding strongly age- and symptom-severity- dependant glucose hypometabolism in temporal, parietal and precuneal regions and a more extensive network of atrophy in hippocampal, temporal, parietal, occipital and posterior caudate regions. The model suggests greater and more consistent changes in FDG-PET compared to sMRI at earlier and the inversion of this pattern at more advanced AD stages. Our model describes, integrates and predicts characteristic patterns of AD related pathology, uncontaminated by normal age effects, derived from multi-modal data. It further provides an integrative explanation for findings suggesting a dissociation between early- and late-onset AD. The generative model offers a basis for further development of individualized biomarkers allowing accurate early diagnosis and treatment evaluation.

Published
2013

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