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Your search keyword '"Shah, Raj"' showing total 2 results
2 results on '"Shah, Raj"'

1. Social isolation, social support, and loneliness and their relationship with cognitive health and dementia.

Author

Joyce, Johanna, Ryan, Joanne, Owen, Alice, Hu, Jessie, McHugh Power, Joanna, Shah, Raj, Woods, Robyn, Storey, Elsdon, Britt, Carlene, Freak‐Poli, Rosanne, Freak-Poli, Rosanne, and ASPREE Investigator Group

Subjects
LONELINESS, SOCIAL isolation, SOCIAL support, DEMENTIA, OLDER people, SOCIAL perception
Abstract

Background: Poor social health is prevalent in older adults and may be associated with worse cognition, and increased dementia risk. The aim of this study was to determine whether social isolation, social support and loneliness are independently associated with cognitive function and incident dementia over 5 years in older adults, and to investigate potential gender differences.Methods: Participants were 11,498 community-dwelling relatively healthy Australians aged 70-94, in the ASPREE Longitudinal Study of Older Persons (ALSOP). Social isolation, social support, loneliness and cognitive function were assessed through self-report. Outcomes examined were cognitive decline (>1.5 SD decline in cognitive performance since baseline) and incident dementia (adjudicated according to DSM-IV criteria).Results: Most participants self-reported good social health (92%) with very few socially isolated (2%), with low social support (2%) or lonely (5%). Among women, social isolation and low social support were consistently associated with lower cognitive function (e.g., social support and cognition β = -1.17, p < 0.001). No consistent longitudinal associations were observed between baseline social health and cognitive decline (over median 3.1 years) or incident dementia (over median 4.4 years; social isolation: HR = 1.00, p = 0.99; low social support: HR = 1.79, p = 0.11; loneliness: HR = 0.72, p = 0.34 among women and men).Conclusion: Our study provides evidence that social isolation and a low social support are associated with worse cognitive function in women, but not men. Social health did not predict incident cognitive decline or dementia, but we lacked power to stratify dementia analyses by gender. [ABSTRACT FROM AUTHOR]

Published
2022
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2. Alzheimer's disease cerebrospinal fluid biomarker in cognitively normal subjects

Author

Toledo, Jon B, Zetterberg, Henrik, Osorio, Ricardo S, Taylor-Reinwald, Lisa, Shaw, Leslie M, Trojanowki, John Q, Lee, Virginia, Korecka, Magdalena, Figurski, Michal, Toga, Arthur W, Crawford, Karen, Neu, Scott, Saykin, Andrew J, Vanderstichele, Hugo, Foroud, Tatiana M, Potkin, Steven, Shen, Li, Faber, Kelley, Kim, Sungeun, Nho, Kwangsik, Weiner, Michael W, Thal, Lean, Khachaturian, Zaven, Thal, Leon, Vandijck, Manu, Buckholtz, Neil, Snyder, Peter J, Potter, William, Paul, Steven, Albert, Marylyn, Frank, Richard, Hsiao, John, Kaye, Jeffrey, Hampel, Harald, Quinn, Joseph, Silbert, Lisa, Lind, Betty, Carter, Raina, Dolen, Sara, Schneider, Lon S, Pawluczyk, Sonia, Beccera, Mauricio, Teodoro, Liberty, Spann, Bryan M, Teipel, Stefan, Brewer, James, Vanderswag, Helen, Fleisher, Adam, Heidebrink, Judith L, Lord, Joanne L, Petersen, Ronald, Mason, Sara S, Albers, Colleen S, Knopman, David, Johnson, Kris, Moghekar, Abhay, Doody, Rachelle S, Villanueva-Meyer, Javier, Chowdhury, Munir, Rountree, Susan, Dang, Mimi, Stern, Yaakov, Honig, Lawrence S, Bell, Karen L, Ances, Beau, Morris, John C, Albert, Marilyn, Carroll, Maria, Creech, Mary L, Franklin, Erin, Mintun, Mark A, Schneider, Stacy, Oliver, Angela, Marson, Daniel, Griffith, Randall, Clark, David, Geldmacher, David, Hu, William T, Brockington, John, Roberson, Erik, Love, Marissa Natelson, Grossman, Hillel, Mitsis, Effie, Shah, Raj C, deToledo-Morrell, Leyla, Duara, Ranjan, Varon, Daniel, Greig, Maria T, Monge Argilés, Jose A, Roberts, Peggy, Onyike, Chiadi, D' Agostino, Daniel, Kielb, Stephanie, Galvin, James E, Cerbone, Brittany, Michel, Christina A, Pogorelec, Dana M, Rusinek, Henry, Gorostidi, Ana, de Leon, Mony J, Glodzik, Lidia, De Santi, Susan, Doraiswamy, P Murali, Petrella, Jeffrey R, Borges-Neto, Salvador, Wong, Terence Z, Coleman, Edward, Arnold, Steven E, Karlawish, Jason H, van Harten, Argonde C, Teunissen, Charlotte E, Wolk, David, Clark, Christopher M, Smith, Charles D, Jicha, Greg, Hardy, Peter, Sinha, Partha, Oates, Elizabeth, Conrad, Gary, Lopez, Oscar L, Oakley, MaryAnn, De Deyn, Peter P, Simpson, Donna M, Porsteinsson, Anton P, Goldstein, Bonnie S, Martin, Kim, Makino, Kelly M, Ismail, M Saleem, Brand, Connie, Mulnard, Ruth A, Thai, Gaby, Mc-Adams-Ortiz, Catherine, Hyman, Bradley T, Womack, Kyle, Mathews, Dana, Quiceno, Mary, Levey, Allan I, Lah, James J, Cellar, Janet S, Burns, Jeffrey M, Swerdlow, Russell H, Brooks, William M, Apostolova, Liana, Molinuevo, Jose L, Tingus, Kathleen, Woo, Ellen, Silverman, Daniel H S, Lu, Po H, Bartzokis, George, Graff-Radford, Neill R, Parfitt, Francine, Kendall, Tracy, Johnson, Heather, Farlow, Martin R, Frisoni, Giovanni B, Hake, Ann Marie, Matthews, Brandy R, Brosch, Jared R, Herring, Scott, Hunt, Cynthia, van Dyck, Christopher H, Carson, Richard E, MacAvoy, Martha G, Varma, Pradeep, Chertkow, Howard, Linazasoro, Gurutz, Bergman, Howard, Hosein, Chris, Black, Sandra, Stefanovic, Bojana, Caldwell, Curtis, Hsiung, Ging-Yuek Robin, Feldman, Howard, Mudge, Benita, Assaly, Michele, Finger, Elizabeth, Pasternack, Stephen, Rachisky, Irina, Trost, Dick, Kertesz, Andrew, Bernick, Charles, Munic, Donna, Mesulam, Marek-Marsel, Lipowski, Kristine, Weintraub, MaSandra, Bonakdarpour, Borna, van der Flier, Wiesje M, Kerwin, Diana, Wu, Chuang-Kuo, Johnson, Nancy, Sadowsky, Carl, Villena, Teresa, Turner, Raymond Scott, Johnson, Kathleen, Reynolds, Brigid, Sperling, Reisa A, Johnson, Keith A, Scheltens, Philip, Marshall, Gad, Yesavage, Jerome, Taylor, Joy L, Lane, Barton, Rosen, Allyson, Tinklenberg, Jared, Sabbagh, Marwan N, Belden, Christine M, Jacobson, Sandra A, Sirrel, Sherye A, Blennow, Kaj, Kowall, Neil, Killiany, Ronald, Budson, Andrew E, Norbash, Alexander, Johnson, Patricia Lynn, Obisesan, Thomas O, Wolday, Saba, Allard, Joanne, Lerner, Alan, Ogrocki, Paula, Tatsuoka, Curtis, Fatica, Parianne, Fletcher, Evan, Maillard, Pauline, Olichney, John, DeCarli, Charles, Carmichael, Owen, Kittur, Smita, Borrie, Michael, Lee, T-Y, Trojanowski, John Q, Bartha, Rob, Asthana, Sanjay, Carlsson, Cynthia M, Potkin, Steven G, Preda, Adrian, Nguyen, Dana, Tariot, Pierre, Burke, Anna, Trncic, Nadira, Initiative, Alzheimer’s Disease Neuroimaging, Reeder, Stephanie, Bates, Vernice, Capote, Horacio, Rainka, Michelle, Scharre, Douglas W, Kataki, Maria, Adeli, Anahita, Zimmerman, Earl A, Celmins, Dzintra, Brown, Alice D, Pearlson, Godfrey D, Blank, Karen, Anderson, Karen, Flashman, Laura A, Seltzer, Marc, Hynes, Mary L, Santulli, Robert B, Sink, Kaycee M, Gordineer, Leslie, Williamson, Jeff D, Aisen, Paul, Garg, Pradeep, Watkins, Franklin, Ott, Brian R, Querfurth, Henry, Tremont, Geoffrey, Salloway, Stephen, Malloy, Paul, Correia, Stephen, Rosen, Howard J, Miller, Bruce L, Weiner, Michael, Perry, David, Mintzer, Jacobo, Spicer, Kenneth, Bachman, David, Finger, Elizabether, Pasternak, Stephen, Rachinsky, Irina, Rogers, John, Drost, Dick, Pomara, Nunzio, Hernando, Raymundo, Sarrael, Antero, Schultz, Susan K, Ponto, Laura L Boles, Shim, Hyungsub, Smith, Karen Ekstam, Relkin, Norman, Chaing, Gloria, Lin, Michael, Ravdin, Lisa, Smith, Amanda, Raj, Balebail Ashok, Fargher, Kristin, Green, Robert C, Jack, Clifford R, Harvey, Danielle, Jagust, William, Neylan, Thomas, Grafman, Jordan, Montine, Tom, Thomas, Ronald G, Donohue, Michael, Gessert, Devon, Sather, Tamie, Davis, Melissa, Morrison, Rosemary, Martinez-Lage, Pablo, Jiminez, Gus, Hayes, Jacqueline, Finley, Shannon, Bernstein, Matthew, Borowski, Bret, Gunter, Jeff, Senjem, Matt, Kantarci, Kejal, Koeppe, Robert A, Foster, Norm, Reiman, Eric M, Chen, Kewei, Landau, Susan, Cairns, Nigel J, Beckett, Laurel, Householder, Erin, Fleischman, Debra, Arfanakis, Konstantinos, Morris, John, James, Olga, Goldstein, Bonnie, Martin, Kimberly S, McAdams-Ortiz, Catherine, Massoglia, Dino, Brawman-Mintzer, Olga, Martinez, Walter, Rosen, Howard, Behan, Kelly, Sorensen, Greg, Johnson, Sterling C, Fruehling, J Jay, Harding, Sandra, Peskind, Elaine R, Petrie, Eric C, Li, Gail, Yesavage, Jerome A, Furst, Ansgar J, Carrillo, Maria, Chao, Steven, Bocchio-Chiavetto, Luisella, Kuller, Lew, Raichle, Marc, Davies, Peter, Fillit, Howard, Hefti, Franz, Holtzman, Davie, Mesulam, M Marcel, Snyder, Peter, Rami, Lorena, Schwartz, Adam, Walter, Sarah, Hansson, Oskar, Balasubramanian, Archana B, Mason, Jennifer, Sim, Iris, Fox, Nick, Sperling, Reisa, Thompson, Paul, Schuff, Norbert, DeCArli, Charles, Vemuri, Prashanthi, Jones, David, Ward, Chad, Engelborghs, Sebastiaan, Mathis, Chet, Neurology, Clinical chemistry, NCA - neurodegeneration, and Clinical sciences

Subjects
Apolipoprotein E, Male, Pathology, Neurology, genetics [Alzheimer Disease], cerebrospinal fluid [Amyloid beta-Peptides], Neuropsychological Tests, Gastroenterology, Severity of Illness Index, etiology [Neurodegenerative Diseases], Alzheimer Disease/cerebrospinal fluid, Cohort Studies, ddc:616.89, Cognition, Cerebrospinal fluid, Genotype, Cognition/physiology, Aged, 80 and over, Medicine(all), physiology [Cognition], Age Factors, Neurodegenerative Diseases, Middle Aged, amyloid beta-protein (1-42), cerebrospinal fluid [Alzheimer Disease], Biomarker (medicine), Cohort studies, Female, Alzheimer's disease, Peptide Fragments/cerebrospinal fluid, Psychology, Adult, medicine.medical_specialty, tau Proteins, Neurodegenerative Diseases/etiology, physiopathology [Alzheimer Disease], Apolipoproteins E, Alzheimer Disease, Internal medicine, mental disorders, medicine, Dementia, Humans, ddc:610, cerebrospinal fluid [Peptide Fragments], Pathological, Aged, Analysis of Variance, Amyloid beta-Peptides, tau Proteins/cerebrospinal fluid, Original Articles, medicine.disease, Peptide Fragments, Amyloid beta-Peptides/cerebrospinal fluid, cerebrospinal fluid [tau Proteins], genetics [Apolipoproteins E], Neurology (clinical), Human medicine, aged, 80 and over, Apolipoproteins E/genetics
Abstract

In a large multicentre sample of cognitively normal subjects, as a function of age, gender and APOE genotype, we studied the frequency of abnormal cerebrospinal fluid levels of Alzheimers disease biomarkers including: total tau, phosphorylated tau and amyloid-β1-42. Fifteen cohorts from 12 different centres with either enzyme-linked immunosorbent assays or Luminex® measurements were selected for this study. Each centre sent nine new cerebrospinal fluid aliquots that were used to measure total tau, phosphorylated tau and amyloid-β1-42 in the Gothenburg laboratory. Seven centres showed a high correlation with the new Gothenburg measurements; therefore, 10 cohorts from these centres are included in the analyses here (1233 healthy control subjects, 4084 years old). Amyloid-β amyloid status (negative or positive) and neurodegeneration status (negative or positive) was established based on the pathological cerebrospinal fluid Alzheimers disease cut-off values for cerebrospinal fluid amyloid-β1-42 and total tau, respectively. While gender did not affect these biomarker values, APOE genotype modified the age-associated changes in cerebrospinal fluid biomarkers such that APOE ε4 carriers showed stronger age-related changes in cerebrospinal fluid phosphorylated tau, total tau and amyloid-β1-42 values and APOE ε2 carriers showed the opposite effect. At 40 years of age, 76% of the subjects were classified as amyloid negative, neurodegeneration negative and their frequency decreased to 32% at 85 years. The amyloid-positive neurodegeneration-negative group remained stable. The amyloid-negative neurodegeneration-positive group frequency increased slowly from 1% at 44 years to 16% at 85 years, but its frequency was not affected by APOE genotype. The amyloid-positive neurodegeneration-positive frequency increased from 1% at 53 years to 28% at 85 years. Abnormally low cerebrospinal fluid amyloid-β1-42 levels were already frequent in midlife and APOE genotype strongly affects the levels of cerebrospinal fluid amyloid-β1-42, phosphorylated tau and total tau across the lifespan without influencing the frequency of subjects with suspected non-amyloid pathology.

Published
2015

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