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Brzyski D, Hu X, Goni J, Ances B, Randolph TW, Harezlak J. Matrix-Variate Regression for Sparse, Low-Rank Estimation of Brain Connectivities Associated With a Clinical Outcome. IEEE Trans Biomed Eng 2024; 71:1378-1390. [PMID: 37995175 DOI: 10.1109/tbme.2023.3336241] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2023]
Abstract
OBJECTIVE We address the problem of finding brain connectivities that are associated with a clinical outcome or phenotype. METHODS The proposed framework regresses a (scalar) clinical outcome on matrix-variate predictors which arise in the form of brain connectivity matrices. For example, in a large cohort of subjects we estimate those regions of functional connectivities that are associated with neurocognitive scores. We approach this high-dimensional yet highly structured estimation problem by formulating a regularized estimation process that results in a low-rank coefficient matrix having a sparse set of nonzero entries which represent regions of biologically relevant connectivities. In contrast to the recent literature on estimating a sparse, low-rank matrix from a single noisy observation, our scalar-on-matrix regression framework produces a data-driven extraction of structures that are associated with a clinical response. The method, called Sparsity Inducing Nuclear-Norm Estimator (SpINNEr), simultaneously constrains the regression coefficient matrix in two ways: a nuclear norm penalty encourages low-rank structure while an l1 norm encourages entry-wise sparsity. RESULTS Our simulations show that SpINNEr outperforms other methods in estimation accuracy when the response-related entries (representing the brain's functional connectivity) are arranged in well-connected communities. SpINNEr is applied to investigate associations between HIV-related outcomes and functional connectivity in the human brain. CONCLUSION AND SIGNIFICANCE Overall, this work demonstrates the potential of SpINNEr to recover sparse and low-rank estimates under scalar-on-matrix regression framework.
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Hartley SL, Handen B, Tudorascu D, Lee L, Cohen A, Schworer EK, Peven JC, Zammit M, Klunk W, Laymon C, Minhas D, Luo W, Zaman S, Ances B, Preboske G, Christian BT. AT(N) biomarker profiles and Alzheimer's disease symptomology in Down syndrome. Alzheimers Dement 2024; 20:366-375. [PMID: 37641428 PMCID: PMC10840615 DOI: 10.1002/alz.13446] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2023] [Revised: 08/01/2023] [Accepted: 08/02/2023] [Indexed: 08/31/2023]
Abstract
INTRODUCTION Down syndrome (DS) is a genetic cause of early-onset Alzheimer's disease (AD). The National Institute on Aging-Alzheimer's Association AT(N) Research Framework is a staging model for AD biomarkers but has not been assessed in DS. METHOD Data are from the Alzheimer's Biomarker Consortium-Down Syndrome. Positron emission tomography (PET) amyloid beta (Aβ; 15 mCi of [11 C]Pittsburgh compound B) and tau (10 mCi of [18 F]AV-1451) were used to classify amyloid (A) -/+ and tau (T) +/-. Hippocampal volume classified neurodegeneration (N) -/+. The modified Cued Recall Test assessed episodic memory. RESULTS Analyses included 162 adults with DS (aged M = 38.84 years, standard deviation = 8.41). Overall, 69.8% of participants were classified as A-/T-/(N)-, 11.1% were A+/T-/(N)-, 5.6% were A+/T+/(N)-, and 9.3% were A+/T+/(N)+. Participants deemed cognitively stable were most likely to be A-T-(N)- and A+T-(N)-. Tau PET (T+) most closely aligning with memory impairment and AD clinical status. DISCUSSION Findings add to understanding of AT(N) biomarker profiles in DS. HIGHLIGHTS Overall, 69.8% of adults with Down syndrome (DS) aged 25 to 61 years were classified as amyloid (A)-/tau (T)-/neurodegeneration (N)-, 11.1% were A+/T-/(N)-, 5.6% were A+/T+/(N)-, and 9.3% were A+/T+/(N)+. The AT(N) profiles were associated with clinical Alzheimer's disease (AD) status and with memory performance, with the presence of T+ aligned with AD clinical symptomology. Findings inform models for predicting the transition to the prodromal stage of AD in DS.
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Affiliation(s)
- Sigan L. Hartley
- Waisman CenterUniversity of Wisconsin–MadisonMadisonWisconsinUSA
- School of Human EcologyUniversity of Wisconsin–MadisonMadisonWisconsinUSA
| | - Benjamin Handen
- Department of PsychiatryUniversity of PittsburghPittsburghPennsylvaniaUSA
| | - Dana Tudorascu
- Department of PsychiatryUniversity of PittsburghPittsburghPennsylvaniaUSA
| | - Laisze Lee
- Department of PsychiatryUniversity of PittsburghPittsburghPennsylvaniaUSA
| | - Annie Cohen
- Department of PsychiatryUniversity of PittsburghPittsburghPennsylvaniaUSA
| | | | - Jamie C. Peven
- Department of PsychiatryUniversity of PittsburghPittsburghPennsylvaniaUSA
| | - Matthew Zammit
- Waisman CenterUniversity of Wisconsin–MadisonMadisonWisconsinUSA
- Department of Medical PhysicsUniversity of Wisconsin–MadisonMadisonWisconsinUSA
| | - William Klunk
- Department of PsychiatryUniversity of PittsburghPittsburghPennsylvaniaUSA
| | - Charles Laymon
- Department of RadiologyUniversity of PittsburghPittsburghPennsylvaniaUSA
- Department of BioengineeringUniversity of PittsburghPittsburghPennsylvaniaUSA
| | - Davneet Minhas
- Department of RadiologyUniversity of PittsburghPittsburghPennsylvaniaUSA
| | - Weiquan Luo
- Department of RadiologyUniversity of PittsburghPittsburghPennsylvaniaUSA
| | - Shahid Zaman
- Department of PsychiatryUniversity of CambridgeCambridgeUK
| | - Beau Ances
- Department of NeurologyWashington University at St. LouisSt. Louis, MissouriUSA
| | | | - Bradley T. Christian
- Waisman CenterUniversity of Wisconsin–MadisonMadisonWisconsinUSA
- Department of Medical PhysicsUniversity of Wisconsin–MadisonMadisonWisconsinUSA
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Rahmani F, Brier MR, Gordon BA, McKay N, Flores S, Keefe S, Hornbeck R, Ances B, Joseph‐Mathurin N, Xiong C, Wang G, Raji CA, Libre‐Guerra JJ, Perrin RJ, McDade E, Daniels A, Karch C, Day GS, Brickman AM, Fulham M, Jack CR, la La Fougère C, Reischl G, Schofield PR, Oh H, Levin J, Vöglein J, Cash DM, Yakushev I, Ikeuchi T, Klunk WE, Morris JC, Bateman RJ, Benzinger TLS. T1 and FLAIR signal intensities are related to tau pathology in dominantly inherited Alzheimer disease. Hum Brain Mapp 2023; 44:6375-6387. [PMID: 37867465 PMCID: PMC10681640 DOI: 10.1002/hbm.26514] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2023] [Revised: 09/17/2023] [Accepted: 09/27/2023] [Indexed: 10/24/2023] Open
Abstract
Carriers of mutations responsible for dominantly inherited Alzheimer disease provide a unique opportunity to study potential imaging biomarkers. Biomarkers based on routinely acquired clinical MR images, could supplement the extant invasive or logistically challenging) biomarker studies. We used 1104 longitudinal MR, 324 amyloid beta, and 87 tau positron emission tomography imaging sessions from 525 participants enrolled in the Dominantly Inherited Alzheimer Network Observational Study to extract novel imaging metrics representing the mean (μ) and standard deviation (σ) of standardized image intensities of T1-weighted and Fluid attenuated inversion recovery (FLAIR) MR scans. There was an exponential decrease in FLAIR-μ in mutation carriers and an increase in FLAIR and T1 signal heterogeneity (T1-σ and FLAIR-σ) as participants approached the symptom onset in both supramarginal, the right postcentral and right superior temporal gyri as well as both caudate nuclei, putamina, thalami, and amygdalae. After controlling for the effect of regional atrophy, FLAIR-μ decreased and T1-σ and FLAIR-σ increased with increasing amyloid beta and tau deposition in numerous cortical regions. In symptomatic mutation carriers and independent of the effect of regional atrophy, tau pathology demonstrated a stronger relationship with image intensity metrics, compared with amyloid pathology. We propose novel MR imaging intensity-based metrics using standard clinical T1 and FLAIR images which strongly associates with the progression of pathology in dominantly inherited Alzheimer disease. We suggest that tau pathology may be a key driver of the observed changes in this cohort of patients.
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Affiliation(s)
| | | | - Brian A. Gordon
- Washington University School of MedicineSt. LouisMissouriUSA
| | - Nicole McKay
- Washington University School of MedicineSt. LouisMissouriUSA
| | - Shaney Flores
- Washington University School of MedicineSt. LouisMissouriUSA
| | - Sarah Keefe
- Washington University School of MedicineSt. LouisMissouriUSA
| | - Russ Hornbeck
- Washington University School of MedicineSt. LouisMissouriUSA
| | - Beau Ances
- Washington University School of MedicineSt. LouisMissouriUSA
| | | | - Chengjie Xiong
- Washington University School of MedicineSt. LouisMissouriUSA
| | - Guoqiao Wang
- Washington University School of MedicineSt. LouisMissouriUSA
| | - Cyrus A. Raji
- Washington University School of MedicineSt. LouisMissouriUSA
| | | | | | - Eric McDade
- Washington University School of MedicineSt. LouisMissouriUSA
| | - Alisha Daniels
- Washington University School of MedicineSt. LouisMissouriUSA
| | - Celeste Karch
- Washington University School of MedicineSt. LouisMissouriUSA
| | - Gregory S. Day
- Mayo Clinic, Department of NeurologyJacksonvilleFloridaUSA
| | - Adam M. Brickman
- Taub Institute for Research on Alzheimer's Disease & the Aging Brain, and Department of Neurology College of Physicians and SurgeonsColumbia UniversityNew YorkNew YorkUSA
| | | | | | - Christian la La Fougère
- Department of Nuclear Medicine and Clinical Molecular ImagingUniversity Hospital TuebingenTübingenGermany
- German Center for Neurodegenerative Diseases (DZNE) TuebingenTübingenGermany
- Department of Preclinical Imaging and RadiopharmacyEberhard Karls University TübingenTübingenGermany
| | - Gerald Reischl
- Department of Nuclear Medicine and Clinical Molecular ImagingUniversity Hospital TuebingenTübingenGermany
- German Center for Neurodegenerative Diseases (DZNE) TuebingenTübingenGermany
- Department of Preclinical Imaging and RadiopharmacyEberhard Karls University TübingenTübingenGermany
| | - Peter R. Schofield
- Neuroscience Research AustraliaSydneyNew South WalesAustralia
- School of Biomedical SciencesUniversity of New South WalesSydneyNew South WalesAustralia
| | - Hwamee Oh
- Brown UniversityProvidenceRhode IslandUSA
| | - Johannes Levin
- Department of NeurologyLudwig‐Maximilians‐Universität MünchenMunichGermany
- German Center for Neurodegenerative Diseases (DZNE), site MunichMunichGermany
- Munich Cluster for Systems Neurology (SyNergy)MunichGermany
| | - Jonathan Vöglein
- Department of NeurologyLudwig‐Maximilians‐Universität MünchenMunichGermany
- German Center for Neurodegenerative Diseases (DZNE), site MunichMunichGermany
- Munich Cluster for Systems Neurology (SyNergy)MunichGermany
| | - David M. Cash
- UK Dementia Research Institute at University College LondonLondonUK
- Dementia Research CentreUCL Queen Square Institute of NeurologyLondonUK
| | - Igor Yakushev
- Department of NeurologyLudwig‐Maximilians‐Universität MünchenMunichGermany
- German Center for Neurodegenerative Diseases (DZNE), site MunichMunichGermany
- Munich Cluster for Systems Neurology (SyNergy)MunichGermany
| | | | | | - John C. Morris
- Washington University School of MedicineSt. LouisMissouriUSA
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Bradley J, Gorijala P, Schindler SE, Sung YJ, Ances B, Fernandez MV, Cruchaga C. Genetic architecture of plasma Alzheimer disease biomarkers. Hum Mol Genet 2023; 32:2532-2543. [PMID: 37208024 PMCID: PMC10360384 DOI: 10.1093/hmg/ddad087] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2022] [Revised: 04/29/2023] [Accepted: 05/16/2023] [Indexed: 05/21/2023] Open
Abstract
Genome-wide association studies (GWAS) of cerebrospinal fluid (CSF) Alzheimer's Disease (AD) biomarker levels have identified novel genes implicated in disease risk, onset and progression. However, lumbar punctures have limited availability and may be perceived as invasive. Blood collection is readily available and well accepted, but it is not clear whether plasma biomarkers will be informative for genetic studies. Here we perform genetic analyses on concentrations of plasma amyloid-β peptides Aβ40 (n = 1,467) and Aβ42 (n = 1,484), Aβ42/40 (n = 1467) total tau (n = 504), tau phosphorylated (p-tau181; n = 1079) and neurofilament light (NfL; n = 2,058). GWAS and gene-based analysis was used to identify single variant and genes associated with plasma levels. Finally, polygenic risk score and summary statistics were used to investigate overlapping genetic architecture between plasma biomarkers, CSF biomarkers and AD risk. We found a total of six genome-wide significant signals. APOE was associated with plasma Aβ42, Aβ42/40, tau, p-tau181 and NfL. We proposed 10 candidate functional genes on the basis of 12 single nucleotide polymorphism-biomarker pairs and brain differential gene expression analysis. We found a significant genetic overlap between CSF and plasma biomarkers. We also demonstrate that it is possible to improve the specificity and sensitivity of these biomarkers, when genetic variants regulating protein levels are included in the model. This current study using plasma biomarker levels as quantitative traits can be critical to identification of novel genes that impact AD and more accurate interpretation of plasma biomarker levels.
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Affiliation(s)
- Joseph Bradley
- Department of Psychiatry, Washington University School of Medicine, St. Louis, MO 63110, USA
- NeuroGenomics and Informatics Center, Washington University School of Medicine, St. Louis, MO 63110, USA
- Hope Center for Neurologic Diseases, Washington University in St. Louis, St. Louis, MO 63110, USA
| | - Priyanka Gorijala
- Department of Psychiatry, Washington University School of Medicine, St. Louis, MO 63110, USA
- NeuroGenomics and Informatics Center, Washington University School of Medicine, St. Louis, MO 63110, USA
| | - Suzanne E Schindler
- Hope Center for Neurologic Diseases, Washington University in St. Louis, St. Louis, MO 63110, USA
- Department of Neurology, Washington University School of Medicine, St. Louis, MO 63110, USA
| | - Yun J Sung
- Department of Psychiatry, Washington University School of Medicine, St. Louis, MO 63110, USA
- NeuroGenomics and Informatics Center, Washington University School of Medicine, St. Louis, MO 63110, USA
- Hope Center for Neurologic Diseases, Washington University in St. Louis, St. Louis, MO 63110, USA
| | - Beau Ances
- Hope Center for Neurologic Diseases, Washington University in St. Louis, St. Louis, MO 63110, USA
- Department of Neurology, Washington University School of Medicine, St. Louis, MO 63110, USA
| | - Maria V Fernandez
- Department of Psychiatry, Washington University School of Medicine, St. Louis, MO 63110, USA
- NeuroGenomics and Informatics Center, Washington University School of Medicine, St. Louis, MO 63110, USA
| | - Carlos Cruchaga
- Department of Psychiatry, Washington University School of Medicine, St. Louis, MO 63110, USA
- NeuroGenomics and Informatics Center, Washington University School of Medicine, St. Louis, MO 63110, USA
- Hope Center for Neurologic Diseases, Washington University in St. Louis, St. Louis, MO 63110, USA
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Nightingale S, Ances B, Cinque P, Dravid A, Dreyer AJ, Gisslén M, Joska JA, Kwasa J, Meyer AC, Mpongo N, Nakasujja N, Pebody R, Pozniak A, Price RW, Sandford C, Saylor D, Thomas KGF, Underwood J, Vera JH, Winston A. Cognitive impairment in people living with HIV: consensus recommendations for a new approach. Nat Rev Neurol 2023; 19:424-433. [PMID: 37311873 DOI: 10.1038/s41582-023-00813-2] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/19/2023] [Indexed: 06/15/2023]
Abstract
Current approaches to classifying cognitive impairment in people living with HIV can overestimate disease burden and lead to ambiguity around disease mechanisms. The 2007 criteria for HIV-associated neurocognitive disorders (HAND), sometimes called the Frascati criteria, can falsely classify over 20% of cognitively healthy individuals as having cognitive impairment. Minimum criteria for HAND are met on the basis of performance on cognitive tests alone, which might not be appropriate for populations with diverse educational and socioeconomic backgrounds. Imprecise phenotyping of cognitive impairment can limit mechanistic research, biomarker discovery and treatment trials. Importantly, overestimation of cognitive impairment carries the risk of creating fear among people living with HIV and worsening stigma and discrimination towards these individuals. To address this issue, we established the International HIV-Cognition Working Group, which is globally representative and involves the community of people living with HIV. We reached consensus on six recommendations towards a new approach for diagnosis and classification of cognitive impairment in people living with HIV, intended to focus discussion and debate going forward. We propose the conceptual separation of HIV-associated brain injury - including active or pretreatment legacy damage - from other causes of brain injury occurring in people living with HIV. We suggest moving away from a quantitative neuropsychological approach towards an emphasis on clinical context. Our recommendations are intended to better represent the changing profile of cognitive impairment in people living with HIV in diverse global settings and to provide a clearer framework of classification for clinical management and research studies.
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Affiliation(s)
- Sam Nightingale
- HIV Mental Health Research Unit, Division of Neuropsychiatry, Department of Psychiatry and Mental Health, Neuroscience Institute, University of Cape Town, Cape Town, South Africa.
| | - Beau Ances
- Department of Neurology, Washington University School of Medicine, St Louis, MO, USA
| | - Paola Cinque
- Unit of Infectious Diseases, San Raffaele Institute, Milan, Italy
| | - Ameet Dravid
- Department of Medicine, Poona Hospital and Research Centre and Noble Hospital, Pune, India
| | - Anna J Dreyer
- HIV Mental Health Research Unit, Division of Neuropsychiatry, Department of Psychiatry and Mental Health, Neuroscience Institute, University of Cape Town, Cape Town, South Africa
| | - Magnus Gisslén
- Institute of Biomedicine, Department of Infectious Diseases, Sahlgrenska Academy at University of Gothenburg, Gothenburg, Sweden
- Region Västra Götaland, Sahlgrenska University Hospital, Department of Infectious Diseases, Gothenburg, Sweden
| | - John A Joska
- HIV Mental Health Research Unit, Division of Neuropsychiatry, Department of Psychiatry and Mental Health, Neuroscience Institute, University of Cape Town, Cape Town, South Africa
| | - Judith Kwasa
- Department of Clinical Medicine and Therapeutics, Faculty of Health Science, University of Nairobi, Nairobi, Kenya
| | - Ana-Claire Meyer
- Department of Neurology, Johns Hopkins University, Baltimore, MD, USA
| | | | - Noeline Nakasujja
- Department of Psychiatry, College of Health Sciences, Makerere University, Kampala, Uganda
| | | | - Anton Pozniak
- Department of HIV Medicine, Chelsea and Westminster Hospital NHS Foundation Trust, London, UK
- Department of Clinical Research, London School of Hygiene & Tropical Medicine, London, UK
| | - Richard W Price
- Department of Neurology, University of California San Francisco, San Francisco, CA, USA
| | | | - Deanna Saylor
- Department of Neurology, Johns Hopkins University, Baltimore, MD, USA
- University Teaching Hospital, Lusaka, Zambia
| | - Kevin G F Thomas
- Applied Cognitive Science and Experimental Neuropsychology Team (ACSENT), Department of Psychology, University of Cape Town, Cape Town, South Africa
| | - Jonathan Underwood
- Division of Infection and Immunity, Cardiff University, Cardiff, UK
- Department of Infectious Diseases, Cardiff and Vale University Health Board, Cardiff, UK
| | - Jaime H Vera
- Department of Global Health and Infection, Brighton and Sussex Medical School, Brighton, UK
| | - Alan Winston
- Department of Infectious Disease, Imperial College London, London, UK
- HIV Clinical Trials, Winston Churchill Wing, St Mary's Hospital, London, UK
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D'Amico D, Barone R, Di Felice V, Ances B, Prideaux B, Eugenin EA. Chronic brain damage in HIV-infected individuals under antiretroviral therapy is associated with viral reservoirs, sulfatide release, and compromised cell-to-cell communication. Cell Mol Life Sci 2023; 80:116. [PMID: 37016051 DOI: 10.1007/s00018-023-04757-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2022] [Revised: 03/11/2023] [Accepted: 03/13/2023] [Indexed: 04/06/2023]
Abstract
HIV infection has become a chronic and manageable disease due to the effective use of antiretroviral therapies (ART); however, several chronic aging-related comorbidities, including cognitive impairment, remain a major public health issue. However, these mechanisms are unknown. Here, we identified that glial and myeloid viral reservoirs are associated with local myelin damage and the release of several myelin components, including the lipid sulfatide. Soluble sulfatide compromised gap junctional communication and calcium wave coordination, essential for proper cognition. We propose that soluble sulfatide could be a potential biomarker and contributor to white matter compromise observed in HIV-infected individuals even in the current ART era.
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Affiliation(s)
- Daniela D'Amico
- Department of Neurobiology, The University of Texas Medical Branch (UTMB), Research Building 17, Fifth Floor, 11Th Street, Galveston, TX, 77555, USA
- Department of Biomedicine, Neuroscience, and Advanced Diagnostics (BiND), University of Palermo, Palermo, Italy
| | - Rosario Barone
- Department of Biomedicine, Neuroscience, and Advanced Diagnostics (BiND), University of Palermo, Palermo, Italy
| | - Valentina Di Felice
- Department of Biomedicine, Neuroscience, and Advanced Diagnostics (BiND), University of Palermo, Palermo, Italy
| | - Beau Ances
- Department of Neurology, Washington University School of Medicine, St. Louis, MO, USA
| | - Brendan Prideaux
- Department of Neurobiology, The University of Texas Medical Branch (UTMB), Research Building 17, Fifth Floor, 11Th Street, Galveston, TX, 77555, USA.
| | - Eliseo A Eugenin
- Department of Neurobiology, The University of Texas Medical Branch (UTMB), Research Building 17, Fifth Floor, 11Th Street, Galveston, TX, 77555, USA.
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Grigorova M, Mak E, Brown SSG, Beresford-Webb J, Hong YT, Fryer TD, Coles JP, Aigbirhio FI, Tudorascu D, Cohen A, Christian BT, Ances B, Handen BL, Laymon CM, Klunk WE, Clare ICH, Holland AJ, Zaman SH. Amyloid- β and tau deposition influences cognitive and functional decline in Down syndrome. Neurobiol Aging 2022; 119:36-45. [PMID: 35964542 PMCID: PMC10363400 DOI: 10.1016/j.neurobiolaging.2022.07.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2021] [Revised: 07/03/2022] [Accepted: 07/05/2022] [Indexed: 11/19/2022]
Abstract
This study investigates whether tau has (i) an independent effect from amyloid-β on changes in cognitive and functional performance and (ii) a synergistic relationship with amyloid-β in the exacerbation of decline in aging Down syndrome (DS). 105 participants with DS underwent baseline PET [18F]-AV1451 and PET [11C]PiB scans to quantify tau deposition in Braak regions II-VI and the Striatum and amyloid-β status respectively. Linear Mixed Effects models were implemented to assess how tau and amyloid-β deposition are related to change over three time points. Tau was a significant independent predictor of cognitive and functional change. The three-way interaction between time, [11C]PiB status and tau was significant in the models of episodic memory and visuospatial cognition. Baseline tau is a significant predictor of cognitive and functional decline, over and above the effect of amyloid-β status. Results suggest a synergistic relationship between amyloid-β status and tau as predictors of change in memory and visuospatial cognition.
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Affiliation(s)
- Monika Grigorova
- Cambridge Intellectual and Developmental Disabilities Research Group, Department of Psychiatry, University of Cambridge, Cambridge, UK.
| | - Elijah Mak
- Cambridge Intellectual and Developmental Disabilities Research Group, Department of Psychiatry, University of Cambridge, Cambridge, UK
| | - Stephanie S G Brown
- Cambridge Intellectual and Developmental Disabilities Research Group, Department of Psychiatry, University of Cambridge, Cambridge, UK
| | - Jessica Beresford-Webb
- Cambridge Intellectual and Developmental Disabilities Research Group, Department of Psychiatry, University of Cambridge, Cambridge, UK
| | - Young T Hong
- Department of Clinical Neurosciences, University of Cambridge, Cambridge, UK
| | - Tim D Fryer
- Department of Clinical Neurosciences, University of Cambridge, Cambridge, UK
| | | | | | - Dana Tudorascu
- Department of Psychiatry, University of Pittsburgh, Pittsburgh, PA, USA
| | - Annie Cohen
- Department of Psychiatry, University of Pittsburgh, Pittsburgh, PA, USA
| | - Bradley T Christian
- Waisman Brain Imaging Laboratory, University of Wisconsin-Madison, Madison, WI, USA
| | - Beau Ances
- Department of Neurology, Washington University at St. Louis, St. Louis, WA, USA
| | - Benjamin L Handen
- Department of Psychiatry, University of Pittsburgh, Pittsburgh, PA, USA
| | - Charles M Laymon
- Department of Radiology and Bioengineering, University of Pittsburgh, Pittsburgh, PA, USA
| | - William E Klunk
- Department of Psychiatry, University of Pittsburgh, Pittsburgh, PA, USA
| | - Isabel C H Clare
- Cambridge Intellectual and Developmental Disabilities Research Group, Department of Psychiatry, University of Cambridge, Cambridge, UK
| | - Anthony J Holland
- Cambridge Intellectual and Developmental Disabilities Research Group, Department of Psychiatry, University of Cambridge, Cambridge, UK
| | - Shahid H Zaman
- Cambridge Intellectual and Developmental Disabilities Research Group, Department of Psychiatry, University of Cambridge, Cambridge, UK
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Bazydlo AM, Zammit MD, Wu M, Lao PJ, Dean DC, Johnson SC, Tudorascu DL, Cohen A, Cody KA, Ances B, Laymon CM, Klunk WE, Zaman S, Handen BL, Hartley SL, Alexander AL, Christian BT. White matter microstructure associations to amyloid burden in adults with Down syndrome. Neuroimage Clin 2021; 33:102908. [PMID: 34902714 PMCID: PMC8672096 DOI: 10.1016/j.nicl.2021.102908] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2021] [Revised: 10/25/2021] [Accepted: 12/03/2021] [Indexed: 11/30/2022]
Abstract
INTRODUCTION Individuals with Down syndrome (DS) are at an increased risk of developing Alzheimer's Disease (AD). One of the early underlying mechanisms in AD pathology is the accumulation of amyloid protein plaques, which are deposited in extracellular gray matter and signify the first stage in the cascade of neurodegenerative events. AD-related neurodegeneration is also evidenced as microstructural changes in white matter. In this work, we explored the correlation of white matter microstructure with amyloid load to assess amyloid-related neurodegeneration in a cohort of adults with DS. METHODS In this study of 96 adults with DS, the relation of white matter microstructure using diffusion tensor imaging (DTI) and amyloid plaque burden using [11C]PiB PET were examined. The amyloid load (AβL) derived from [11C]PiB was used as a global measure of amyloid burden. AβL and DTI measures were compared using tract-based spatial statistics (TBSS) and corrected for imaging site and chronological age. RESULTS TBSS of the DTI maps showed widespread age-by-amyloid interaction with both fractional anisotropy (FA) and mean diffusivity (MD). Further, diffuse negative association of FA and positive association of MD with amyloid were observed. DISCUSSION These findings are consistent with the white matter microstructural changes associated with AD disease progression in late onset AD in non-DS populations.
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Affiliation(s)
- Austin M Bazydlo
- School of Medicine and Public Health, University of Wisconsin-Madison, Madison, WI, USA.
| | - Matthew D Zammit
- School of Medicine and Public Health, University of Wisconsin-Madison, Madison, WI, USA
| | - Minjie Wu
- University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - Patrick J Lao
- School of Medicine and Public Health, University of Wisconsin-Madison, Madison, WI, USA
| | - Douglas C Dean
- School of Medicine and Public Health, University of Wisconsin-Madison, Madison, WI, USA; Waisman Center, Wisconsin Alzheimer's Disease Research Center, University of Wisconsin-Madison, Madison, WI, USA
| | - Sterling C Johnson
- School of Medicine and Public Health, University of Wisconsin-Madison, Madison, WI, USA
| | - Dana L Tudorascu
- University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - Ann Cohen
- University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - Karly A Cody
- School of Medicine and Public Health, University of Wisconsin-Madison, Madison, WI, USA
| | - Beau Ances
- Washington University, St. Louis, MO, USA
| | - Charles M Laymon
- University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - William E Klunk
- University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - Shahid Zaman
- Cambridge Intellectual and Developmental Disabilities Research Group, University of Cambridge, Cambridge, United Kingdom
| | | | - Sigan L Hartley
- Waisman Center, Wisconsin Alzheimer's Disease Research Center, University of Wisconsin-Madison, Madison, WI, USA
| | - Andrew L Alexander
- School of Medicine and Public Health, University of Wisconsin-Madison, Madison, WI, USA; Waisman Center, Wisconsin Alzheimer's Disease Research Center, University of Wisconsin-Madison, Madison, WI, USA
| | - Bradley T Christian
- School of Medicine and Public Health, University of Wisconsin-Madison, Madison, WI, USA; Waisman Center, Wisconsin Alzheimer's Disease Research Center, University of Wisconsin-Madison, Madison, WI, USA
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9
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Butt O, Zhou A, Lee K, Wu G, Caimi P, de Loma M, Campian J, DiPersio J, Ghobadi A, Ances B. NCMP-20. PRE-INFUSION NEUROFILAMENT LIGHT CHAIN (NFL) LEVELS PREDICT THE DEVELOPMENT OF IMMUNE EFFECTOR CELL-ASSOCIATED NEUROTOXICITY SYNDROME (ICANS) – A MULTICENTER RETROSPECTIVE STUDY. Neuro Oncol 2021. [DOI: 10.1093/neuonc/noab196.591] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Abstract
BACKGROUND
Neurological side effects after chimeric antigen receptor-modified (CAR) T cell therapy, termed immune effector cell-associated neurotoxicity syndrome (ICANS), are common and potentially devastating. We previously demonstrated that pre-infusion plasma neurofilament light chain (NfL), a well-established marker of neurodegeneration, may predict subsequent development of ICANS in a small, single-center cohort. This larger, retrospective multicenter study compares pre-infusion NfL to known post-infusion risk factors for developing ICANs including white blood cell (WBC) count, platelet count, C-reactive protein (CRP), fibrinogen, and ferritin levels.
METHODS
Inclusion criteria included available pre-infusion (up to 4 weeks prior to lymphodepletion) plasma from patients treated with a CAR T cell therapy (n = 30, 36% with ICANS, ASTCT consensus ICANS grade range 1-4). Exclusion criteria included confounding diagnoses known to elevate NfL levels (dementia, multiple sclerosis, recent stroke). Plasma NfL was assayed using a Simoa HD-1/HD-X kit (QuanterixTM). Post-infusion Day 3 or Day 5 WBC, Platelet, CRP, fibrinogen, and ferritin were obtained from the medical record. Group comparisons were done using log-rank tests with a Bonferroni-derived significance threshold, followed by receiver operating characteristic (ROC) curve classification.
RESULTS
Prior to infusion, individuals who ultimately developed ICANS had elevations in NfL ([87.6 v 29.4 pg/ml], p = 0.00004) with excellent classification (AUC 0.96), sensitivity (0.91) and specificity (0.95). Among known post-infusion risk factors, only post-infusion Day 3 ferritin (p = 0.004) and Day 5 ferritin (p = 0.003) differed between groups. Classification was inferior for both time points (Day 3 AUC = 0.87, specificity 0.71; Day 5 AUC 0.87, specificity 0.86).
CONCLUSION
Pre-infusion plasma NfL levels are a robust early marker for the development of ICANS that exceeds known post-infusion markers. Our findings suggest the risk of developing ICANS reflects pre-existing host-factors. Foreknowledge of ICANS development of may permit early, aggressive (preemptive or prophylaxis) ICANS-directed therapies, improving patient outcomes.
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Affiliation(s)
- Omar Butt
- Washington University in Saint Louis, Saint Louis, MO, USA
| | - Alice Zhou
- Washington University in Saint Louis, Saint Louis, MO, USA
| | - Kenneth Lee
- Washington University in Saint Louis, Saint Louis, MO, USA
| | - Gregory Wu
- Washington University in Saint Louis, Saint Louis, MO, USA
| | | | | | - Jian Campian
- Washington University in Saint Louis, Saint Louis, MO, USA
| | - John DiPersio
- Washington University in Saint Louis, Saint Louis, MO, USA
| | - Armin Ghobadi
- Washington University in Saint Louis, Saint Louis, MO, USA
| | - Beau Ances
- Washington University in Saint Louis, Saint Louis, MO, USA
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10
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Butt O, Zhou A, Lee K, Wu G, Song SK, Campian J, DiPersio J, Ances B, Ghobadi A. CLRM-10. THE INTER-RELATIONSHIP BETWEEN MULTI-MODAL LONGITUDINAL BIOMARKERS OF NEURAL DAMAGE, INFLAMMATION, AND COGNITION AFTER CAR T CELLULAR THERAPY: A SINGLE-CENTER PROSPECTIVE OBSERVATIONAL TRIAL (NCT04614987). Neurooncol Adv 2021. [PMCID: PMC8453776 DOI: 10.1093/noajnl/vdab112.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND Immune effector cell associated neurotoxicity syndrome (ICANS) remains a devastating, frequent complication of chimeric antigen receptor (CAR) T cell therapy for advanced-stage hematologic malignancies. Symptoms range from encephalopathy and headaches to aphasia, strokes, and diffuse cerebral edema. Persistent mild cognitive symptoms have also been reported. Unfortunately, the underlying pathophysiology driving ICANS is poorly understood. Current proposed models center on systemic inflammatory changes leading to endothelial dysfunction, blood-brain barrier (BBB) breakdown, and systemic cytokine and/or monocytes infiltration into the central nervous system (CNS). However, these models do not integrate predisposing risk factors for the development of ICANS. We previously demonstrated that pre-infusion plasma neurofilament light chain (NfL), a marker of neurodegeneration, may predict development of ICANS. Early elevations in NfL suggest development of ICANS is also related to pre-existing neuroaxonal injury. The longitudinal relationship between latent neuroaxonal injury, blood brain barrier (BBB) integrity, neuroinflammation, and cognition remains unknown. METHODS This prospective, observational trial examines the relationship between multi-modal (blood, cerebrospinal fluid (CSF), neuroimaging) biomarkers and cognition in a cohort of twenty patients undergoing standard-of-care CAR T cellular therapy. Biomarkers for neural injury include blood and CSF NfL and volumetric measures derived from structural magnetic resonance imaging (MRI). Biomarkers for neuroinflammation include blood and CSF glial fibrillary acidic protein (GFAP) and qualification of white matter hyper-intensity burden on MRI. BBB integrity will be quantified using the serum/CSF albumin ratio. Finally, neuropsychological performance testing will assay cognitive performance across multiple cortical domains including attention, memory, and executive function. Participants will undergo a baseline (pre-infusion) examination, followed by evaluation (blood draw, voluntary lumbar puncture, MRI scan, and cognitive testing) on post-infusion day 3 (D3), D30, D90, and D180. The primary outcome is percent change in a given biomarker level. RESULTS/CONCLUSIONS This ongoing trial has 2 of 20 planned participants enrolled.
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Affiliation(s)
- Omar Butt
- Washington University, Saint Louis, USA
| | | | - Ken Lee
- Washington University, Saint Louis, USA
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11
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Zhou Y, Flores S, Mansor S, Hornbeck RC, Tu Z, Perlmutter JS, Ances B, Morris JC, Gropler RJ, Benzinger TLS. Spatially constrained kinetic modeling with dual reference tissues improves 18F-flortaucipir PET in studies of Alzheimer disease. Eur J Nucl Med Mol Imaging 2021; 48:3172-3186. [PMID: 33599811 PMCID: PMC8371062 DOI: 10.1007/s00259-020-05134-w] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2020] [Accepted: 11/20/2020] [Indexed: 01/03/2023]
Abstract
PURPOSE Recent studies have shown that standard compartmental models using plasma input or the cerebellum reference tissue input are generally not reliable for quantifying tau burden in dynamic 18F-flortaucipir PET studies of Alzheimer disease. So far, the optimal reference region for estimating 18F-flortaucipir delivery and specific tau binding has yet to be determined. The objective of the study is to improve 18F-flortaucipir brain tau PET quantification using a spatially constrained kinetic model with dual reference tissues. METHODS Participants were classified as either cognitively normal (CN) or cognitively impaired (CI) based on clinical assessment. T1-weighted structural MRI and 105-min dynamic 18F-flortaucipir PET scans were acquired for each participant. Using both a simplified reference tissue model (SRTM2) and Logan plot with either cerebellum gray matter or centrum semiovale (CS) white matter as the reference tissue, we estimated distribution volume ratios (DVRs) and the relative transport rate constant R1 for region of interest-based (ROI) and voxelwise-based analyses. Conventional linear regression (LR) and LR with spatially constrained (LRSC) parametric imaging algorithms were then evaluated. Noise-induced bias in the parametric images was compared to estimates from ROI time activity curve-based kinetic modeling. We finally evaluated standardized uptake value ratios at early phase (SUVREP, 0.7-2.9 min) and late phase (SUVRLP, 80-105 min) to approximate R1 and DVR, respectively. RESULTS The percent coefficients of variation of R1 and DVR estimates from SRTM2 with spatially constrained modeling were comparable to those from the Logan plot and SUVRs. The SRTM2 using CS reference tissue with LRSC reduced noise-induced underestimation in the LR generated DVR images to negligible levels (< 1%). Inconsistent overestimation of DVR in the SUVRLP only occurred using the cerebellum reference tissue-based measurements. The CS reference tissue-based DVR and SUVRLP, and cerebellum-based SUVREP and R1 provided higher Cohen's effect size d to detect increased tau deposition and reduced relative tracer transport rate in CI individuals. CONCLUSION Using a spatially constrained kinetic model with dual reference tissues significantly improved quantification of relative perfusion and tau binding. Cerebellum and CS are the suggested reference tissues to estimate R1 and DVR, respectively, for dynamic 18F-flortaucipir PET studies. Cerebellum-based SUVREP and CS-based SUVRLP may be used to simplify 18F-flortaucipir PET study.
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Affiliation(s)
- Yun Zhou
- Mallinckrodt Institute of Radiology, Washington University School of Medicine, Campus Box 8225, 510 S. Kingshighway Blvd, St Louis, MO, 63110, USA.
| | - Shaney Flores
- Mallinckrodt Institute of Radiology, Washington University School of Medicine, Campus Box 8225, 510 S. Kingshighway Blvd, St Louis, MO, 63110, USA
| | - Syahir Mansor
- Mallinckrodt Institute of Radiology, Washington University School of Medicine, Campus Box 8225, 510 S. Kingshighway Blvd, St Louis, MO, 63110, USA
| | - Russ C Hornbeck
- Mallinckrodt Institute of Radiology, Washington University School of Medicine, Campus Box 8225, 510 S. Kingshighway Blvd, St Louis, MO, 63110, USA
| | - Zhude Tu
- Mallinckrodt Institute of Radiology, Washington University School of Medicine, Campus Box 8225, 510 S. Kingshighway Blvd, St Louis, MO, 63110, USA
| | - Joel S Perlmutter
- Mallinckrodt Institute of Radiology, Washington University School of Medicine, Campus Box 8225, 510 S. Kingshighway Blvd, St Louis, MO, 63110, USA
- Departments of Neurology and Neuroscience, Programs of Physical Therapy and Occupational Therapy, Washington University School of Medicine, Saint Louis, MO, USA
| | - Beau Ances
- Knight Alzheimer Disease Research Center, Washington University School of Medicine, Saint Louis, MO, USA
| | - John C Morris
- Departments of Neurology and Neuroscience, Programs of Physical Therapy and Occupational Therapy, Washington University School of Medicine, Saint Louis, MO, USA
- Knight Alzheimer Disease Research Center, Washington University School of Medicine, Saint Louis, MO, USA
| | - Robert J Gropler
- Mallinckrodt Institute of Radiology, Washington University School of Medicine, Campus Box 8225, 510 S. Kingshighway Blvd, St Louis, MO, 63110, USA
| | - Tammie L S Benzinger
- Mallinckrodt Institute of Radiology, Washington University School of Medicine, Campus Box 8225, 510 S. Kingshighway Blvd, St Louis, MO, 63110, USA
- Departments of Neurology and Neuroscience, Programs of Physical Therapy and Occupational Therapy, Washington University School of Medicine, Saint Louis, MO, USA
- Knight Alzheimer Disease Research Center, Washington University School of Medicine, Saint Louis, MO, USA
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12
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Abboud H, Probasco JC, Irani S, Ances B, Benavides DR, Bradshaw M, Christo PP, Dale RC, Fernandez-Fournier M, Flanagan EP, Gadoth A, George P, Grebenciucova E, Jammoul A, Lee ST, Li Y, Matiello M, Morse AM, Rae-Grant A, Rojas G, Rossman I, Schmitt S, Venkatesan A, Vernino S, Pittock SJ, Titulaer MJ. Autoimmune encephalitis: proposed best practice recommendations for diagnosis and acute management. J Neurol Neurosurg Psychiatry 2021; 92:757-768. [PMID: 33649022 PMCID: PMC8223680 DOI: 10.1136/jnnp-2020-325300] [Citation(s) in RCA: 192] [Impact Index Per Article: 64.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/02/2020] [Revised: 12/22/2020] [Accepted: 01/10/2021] [Indexed: 12/18/2022]
Abstract
The objective of this paper is to evaluate available evidence for each step in autoimmune encephalitis management and provide expert opinion when evidence is lacking. The paper approaches autoimmune encephalitis as a broad category rather than focusing on individual antibody syndromes. Core authors from the Autoimmune Encephalitis Alliance Clinicians Network reviewed literature and developed the first draft. Where evidence was lacking or controversial, an electronic survey was distributed to all members to solicit individual responses. Sixty-eight members from 17 countries answered the survey. Corticosteroids alone or combined with other agents (intravenous IG or plasmapheresis) were selected as a first-line therapy by 84% of responders for patients with a general presentation, 74% for patients presenting with faciobrachial dystonic seizures, 63% for NMDAR-IgG encephalitis and 48.5% for classical paraneoplastic encephalitis. Half the responders indicated they would add a second-line agent only if there was no response to more than one first-line agent, 32% indicated adding a second-line agent if there was no response to one first-line agent, while only 15% indicated using a second-line agent in all patients. As for the preferred second-line agent, 80% of responders chose rituximab while only 10% chose cyclophosphamide in a clinical scenario with unknown antibodies. Detailed survey results are presented in the manuscript and a summary of the diagnostic and therapeutic recommendations is presented at the conclusion.
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Affiliation(s)
- Hesham Abboud
- Neurology, Case Western Reserve University, Cleveland, Ohio, USA .,Multiple Sclerosis and Neuroimmunology Program, University Hospitals of Cleveland, Cleveland, Ohio, USA
| | | | - Sarosh Irani
- Oxford Autoimmune Neurology Group, John Radcliffe Hospital, Oxford, UK
| | - Beau Ances
- Neurology, Washington University in St Louis, St Louis, Missouri, USA
| | - David R Benavides
- Neurology, University of Maryland School of Medicine, Baltimore, Maryland, USA
| | - Michael Bradshaw
- Neurology, Rosalind Franklin University of Medicine and Science, North Chicago, Illinois, USA.,Billings Clinic, Billings, Montana, USA
| | - Paulo Pereira Christo
- Neurology, Minas Gerais Federal University Risoleta Tolentino Neves Hospital, Belo Horizonte, MG, Brazil
| | - Russell C Dale
- Neuroimmunology Group, The University of Sydney Faculty of Medicine and Health, Sydney, New South Wales, Australia
| | - Mireya Fernandez-Fournier
- Neurology, La Paz University Hospital General Hospital Department of Neurology, Madrid, Madrid, Spain
| | | | - Avi Gadoth
- Neurology, Tel Aviv Sourasky Medical Center, Tel Aviv, Israel
| | | | | | | | - Soon-Tae Lee
- Neurology, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Yuebing Li
- Neurology, Cleveland Clinic, Cleveland, Ohio, USA
| | - Marcelo Matiello
- Neurology, Massachusetts General Hospital, Boston, Massachusetts, USA.,Neurology, Harvard Medical School, Boston, Massachusetts, USA
| | - Anne Marie Morse
- Pediatric Neurology, Geisinger Commonwealth School of Medicine, Scranton, Pennsylvania, USA
| | | | - Galeno Rojas
- Neurology, Sanatorio de La Trinidad Mitre, Buenos Aires, Argentina.,Neurology, Favaloro Foundation, Buenos Aires, Argentina
| | - Ian Rossman
- Neuro-developmental Science Center, Akron Children's Hospital, Akron, Ohio, USA
| | | | | | | | | | - Maarten J Titulaer
- Neurology, Erasmus Medical Center, Rotterdam, Zuid-Holland, The Netherlands
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13
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Bazydlo A, Zammit M, Wu M, Dean D, Johnson S, Tudorascu D, Cohen A, Cody K, Ances B, Laymon C, Klunk W, Zaman S, Handen B, Alexander A, Christian B, Hartley S. White matter microstructure associations with episodic memory in adults with Down syndrome: a tract-based spatial statistics study. J Neurodev Disord 2021; 13:17. [PMID: 33879062 PMCID: PMC8059162 DOI: 10.1186/s11689-021-09366-1] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/10/2021] [Accepted: 04/08/2021] [Indexed: 11/11/2022] Open
Abstract
BACKGROUND Nearly all persons with Down syndrome will show pathology of Alzheimer's disease in their 40s. There is a critical need for studies to identify early biomarkers of these various pathological changes of Alzheimer's disease in the Down syndrome population and understand the relationship of these biomarkers to cognitive symptoms in order to inform clinical trials. Although Alzheimer's disease is often considered a disease of gray matter, white matter degeneration has been documented during the preclinical stage of Alzheimer's disease. The current study examined the association between diffusion tensor imaging (DTI) measures of white matter microstructure and episodic memory performance in 52 adults with Down syndrome. METHODS Seventy (N = 70) participants (M = 40.13, SD = 7.77 years) received baseline scans as part of the Neurodegeneration in Aging Down Syndrome (NiAD) study at two imaging facilities (36 at the University of Wisconsin-Madison [UW-Madison] and 34 at the University of Pittsburgh Medical Center [UPMC]). All participants had genetically confirmed trisomy 21. Fifty-two (N = 52) participants remained after QC. The DTI measures, fractional anisotropy (FA) and mean diffusivity (MD), were calculated for each participant. A combined measure of episodic memory was generated by summing the z-scores of (1) Free and Cued Recall test and (2) Rivermead Behavioural Memory Test for Children Picture Recognition. The DTI data were projected onto a population-derived FA skeleton and tract-based spatial statistics analysis was conducted using the FSL tool PALM to calculate Pearson's r values between FA and MD with episodic memory. RESULTS A positive correlation of episodic memory with FA and a negative correlation of episodic memory and MD in the major association white matter tracts were observed. Results were significant (p < 0.05) after correction for chronological age, imaging site, and premorbid cognitive ability. CONCLUSION These findings suggest that white matter degeneration may be implicated in early episodic memory declines prior to the onset of dementia in adults with Down syndrome. Further, our findings suggest a coupling of episodic memory and white matter microstructure independent of chronological age.
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Affiliation(s)
- Austin Bazydlo
- School of Medicine and Public Health, University of Wisconsin-Madison, Madison, WI, USA.
| | - Matthew Zammit
- School of Medicine and Public Health, University of Wisconsin-Madison, Madison, WI, USA
| | - Minjie Wu
- University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - Douglas Dean
- School of Medicine and Public Health, University of Wisconsin-Madison, Madison, WI, USA
- Wisconsin Alzheimer's Disease Research Center, University of Wisconsin-Madison, Madison, WI, USA
| | - Sterling Johnson
- School of Medicine and Public Health, University of Wisconsin-Madison, Madison, WI, USA
- Wisconsin Alzheimer's Disease Research Center, University of Wisconsin-Madison, Madison, WI, USA
- Waisman Center, University of Wisconsin-Madison, Madison, WI, USA
| | - Dana Tudorascu
- University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - Ann Cohen
- University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - Karly Cody
- School of Medicine and Public Health, University of Wisconsin-Madison, Madison, WI, USA
| | - Beau Ances
- Washington University of St. Louis, St. Louis, MO, USA
| | - Charles Laymon
- University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - William Klunk
- University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - Shahid Zaman
- Cambridge Intellectual and Developmental Disabilities Research Group, University of Cambridge, Cambridge, UK
| | - Benjamin Handen
- University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - Andrew Alexander
- School of Medicine and Public Health, University of Wisconsin-Madison, Madison, WI, USA
- Waisman Center, University of Wisconsin-Madison, Madison, WI, USA
| | - Bradley Christian
- School of Medicine and Public Health, University of Wisconsin-Madison, Madison, WI, USA
- Wisconsin Alzheimer's Disease Research Center, University of Wisconsin-Madison, Madison, WI, USA
- Waisman Center, University of Wisconsin-Madison, Madison, WI, USA
| | - Sigan Hartley
- Waisman Center, University of Wisconsin-Madison, Madison, WI, USA
- School of Human Ecology, University of Wisconsin-Madison, Madison, WI, USA
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14
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Montal V, Vilaplana E, Pegueroles J, Bejanin A, Alcolea D, Carmona-Iragui M, Clarimón J, Levin J, Cruchaga C, Graff-Radford NR, Noble JM, Lee JH, Allegri R, Karch CM, Laske C, Schofield P, Salloway S, Ances B, Benzinger T, McDale E, Bateman R, Blesa R, Sánchez-Valle R, Lleó A, Fortea J. Biphasic cortical macro- and microstructural changes in autosomal dominant Alzheimer's disease. Alzheimers Dement 2021; 17:618-628. [PMID: 33196147 PMCID: PMC8043974 DOI: 10.1002/alz.12224] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2020] [Revised: 09/20/2020] [Accepted: 10/09/2020] [Indexed: 12/21/2022]
Abstract
INTRODUCTION A biphasic model for brain structural changes in preclinical Alzheimer's disease (AD) could reconcile some conflicting and paradoxical findings in observational studies and anti-amyloid clinical trials. METHODS In this study we tested this model fitting linear versus quadratic trajectories and computed the timing of the inflection points vertexwise of cortical thickness and cortical diffusivity-a novel marker of cortical microstructure-changes in 389 participants from the Dominantly Inherited Alzheimer Network. RESULTS In early preclinical AD, between 20 and 15 years before estimated symptom onset, we found increases in cortical thickness and decreases in cortical diffusivity followed by cortical thinning and cortical diffusivity increases in later preclinical and symptomatic stages. The inflection points 16 to 19 years before estimated symptom onset are in agreement with the start of tau biomarker alterations. DISCUSSION These findings confirm a biphasic trajectory for brain structural changes and have direct implications when interpreting magnetic resonance imaging measures in preventive AD clinical trials.
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Affiliation(s)
- Victor Montal
- Sant Pau Memory Unit, Department of Neurology, Hospital de la Santa Creu i Sant Pau, Biomedical Research Institute Sant Pau, Universitat Autònoma de Barcelona, Barcelona, Spain
- Center of Biomedical Investigation Network for Neurodegenerative Diseases (CIBERNED), Madrid, Spain
| | - Eduard Vilaplana
- Sant Pau Memory Unit, Department of Neurology, Hospital de la Santa Creu i Sant Pau, Biomedical Research Institute Sant Pau, Universitat Autònoma de Barcelona, Barcelona, Spain
- Center of Biomedical Investigation Network for Neurodegenerative Diseases (CIBERNED), Madrid, Spain
| | - Jordi Pegueroles
- Sant Pau Memory Unit, Department of Neurology, Hospital de la Santa Creu i Sant Pau, Biomedical Research Institute Sant Pau, Universitat Autònoma de Barcelona, Barcelona, Spain
- Center of Biomedical Investigation Network for Neurodegenerative Diseases (CIBERNED), Madrid, Spain
| | - Alex Bejanin
- Sant Pau Memory Unit, Department of Neurology, Hospital de la Santa Creu i Sant Pau, Biomedical Research Institute Sant Pau, Universitat Autònoma de Barcelona, Barcelona, Spain
- Center of Biomedical Investigation Network for Neurodegenerative Diseases (CIBERNED), Madrid, Spain
| | - Daniel Alcolea
- Sant Pau Memory Unit, Department of Neurology, Hospital de la Santa Creu i Sant Pau, Biomedical Research Institute Sant Pau, Universitat Autònoma de Barcelona, Barcelona, Spain
- Center of Biomedical Investigation Network for Neurodegenerative Diseases (CIBERNED), Madrid, Spain
| | - María Carmona-Iragui
- Sant Pau Memory Unit, Department of Neurology, Hospital de la Santa Creu i Sant Pau, Biomedical Research Institute Sant Pau, Universitat Autònoma de Barcelona, Barcelona, Spain
- Center of Biomedical Investigation Network for Neurodegenerative Diseases (CIBERNED), Madrid, Spain
- Barcelona Down Medical Center. Fundació Catalana de Síndrome de Down. Barcelona, Spain
| | - Jordi Clarimón
- Sant Pau Memory Unit, Department of Neurology, Hospital de la Santa Creu i Sant Pau, Biomedical Research Institute Sant Pau, Universitat Autònoma de Barcelona, Barcelona, Spain
- Center of Biomedical Investigation Network for Neurodegenerative Diseases (CIBERNED), Madrid, Spain
| | - Johannes Levin
- Department of Neurology, Ludwig-Maximilians-Universität München, Munich, Germany
- German Center for Neurodegenerative Diseases; Munich Cluster for Systems Neurology (SyNergy), Munich, Germany
| | - Carlos Cruchaga
- Department of Neurology, Washington University School of Medicine, St Louis, MO, USA
- The Hope Center for Neurological Disorders, St Louis, MO, USA
- NeuroGenomics and Informatics, Washington University School of Medicine, St. Louis, MO, USA
- Knight Alzheimer’s Disease Research Center, Washington University School of Medicine, St Louis, MO, USA
| | | | - James M Noble
- Department of Neurology, Taub Institute for Research on Alzheimer’s Disease and the Aging Brain, Columbia University Irving Medical Center, New York, NY, USA
| | - Jae-Hong Lee
- Department of Neurology, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Korea
| | - Ricardo Allegri
- Department of Cognitive Neurology, Institute for Neurological Research Fleni, BuenosAires, Argentina
| | - Celeste M. Karch
- Department of Psychiatry, Washington University School of Medicine, Saint Lous, MO, USA
| | - Christoph Laske
- German Center for Neurodegenerative Diseases (DZNE) Tübingen, Germany
- Section for Dementia Research, Hertie Institute for Clinical Brain Research and Department of Psychiatry and Psychotherapy, University of Tübingen, Germany
| | - Peter Schofield
- Neuroscience Research Australia, Sydney, Australia
- School of Medical Sciences, University of New South Wales, Sydney, Australia
| | - Stephen Salloway
- Neurology and the Memory and Aging Program, Butler Hospital, Providence, RI, USA
| | - Beau Ances
- Department of Neurology, Washington University School of Medicine, St Louis, MO, USA
- The Hope Center for Neurological Disorders, St Louis, MO, USA
- Knight Alzheimer’s Disease Research Center, Washington University School of Medicine, St Louis, MO, USA
- Department of Radiology, Washington University in St. Louis, St. Louis, MO, Missouri, USA
| | - Tammie Benzinger
- Knight Alzheimer’s Disease Research Center, Washington University School of Medicine, St Louis, MO, USA
- Department of Radiology, Washington University in St. Louis, St. Louis, MO, Missouri, USA
| | - Eric McDale
- Department of Neurology, Washington University School of Medicine, St Louis, MO, USA
- Knight Alzheimer’s Disease Research Center, Washington University School of Medicine, St Louis, MO, USA
| | - Randall Bateman
- Department of Neurology, Washington University School of Medicine, St Louis, MO, USA
- The Hope Center for Neurological Disorders, St Louis, MO, USA
- Knight Alzheimer’s Disease Research Center, Washington University School of Medicine, St Louis, MO, USA
| | - Rafael Blesa
- Sant Pau Memory Unit, Department of Neurology, Hospital de la Santa Creu i Sant Pau, Biomedical Research Institute Sant Pau, Universitat Autònoma de Barcelona, Barcelona, Spain
- Center of Biomedical Investigation Network for Neurodegenerative Diseases (CIBERNED), Madrid, Spain
| | - Raquel Sánchez-Valle
- Alzheimer’s Disease and Other Cognitive Disorders Unit, Hospital Clínic, Fundació Clínic per a la Recerca Biomèdica, Institut d’Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Universitat de Barcelona, Barcelona, Spain
| | - Alberto Lleó
- Sant Pau Memory Unit, Department of Neurology, Hospital de la Santa Creu i Sant Pau, Biomedical Research Institute Sant Pau, Universitat Autònoma de Barcelona, Barcelona, Spain
- Center of Biomedical Investigation Network for Neurodegenerative Diseases (CIBERNED), Madrid, Spain
| | - Juan Fortea
- Sant Pau Memory Unit, Department of Neurology, Hospital de la Santa Creu i Sant Pau, Biomedical Research Institute Sant Pau, Universitat Autònoma de Barcelona, Barcelona, Spain
- Center of Biomedical Investigation Network for Neurodegenerative Diseases (CIBERNED), Madrid, Spain
- Barcelona Down Medical Center. Fundació Catalana de Síndrome de Down. Barcelona, Spain
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Abboud H, Probasco J, Irani SR, Ances B, Benavides DR, Bradshaw M, Christo PP, Dale RC, Fernandez-Fournier M, Flanagan EP, Gadoth A, George P, Grebenciucova E, Jammoul A, Lee ST, Li Y, Matiello M, Morse AM, Rae-Grant A, Rojas G, Rossman I, Schmitt S, Venkatesan A, Vernino S, Pittock SJ, Titulaer M. Autoimmune encephalitis: proposed recommendations for symptomatic and long-term management. J Neurol Neurosurg Psychiatry 2021; 92:jnnp-2020-325302. [PMID: 33649021 PMCID: PMC8292591 DOI: 10.1136/jnnp-2020-325302] [Citation(s) in RCA: 52] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/02/2020] [Revised: 01/30/2021] [Accepted: 01/31/2021] [Indexed: 12/12/2022]
Abstract
The objective of this paper is to evaluate available evidence for each step in autoimmune encephalitis management and provide expert opinion when evidence is lacking. The paper approaches autoimmune encephalitis as a broad category rather than focusing on individual antibody syndromes. Core authors from the Autoimmune Encephalitis Alliance Clinicians Network reviewed literature and developed the first draft. Where evidence was lacking or controversial, an electronic survey was distributed to all members to solicit individual responses. Sixty-eight members from 17 countries answered the survey. The most popular bridging therapy was oral prednisone taper chosen by 38% of responders while rituximab was the most popular maintenance therapy chosen by 46%. Most responders considered maintenance immunosuppression after a second relapse in patients with neuronal surface antibodies (70%) or seronegative autoimmune encephalitis (61%) as opposed to those with onconeuronal antibodies (29%). Most responders opted to cancer screening for 4 years in patients with neuronal surface antibodies (49%) or limbic encephalitis (46%) as opposed to non-limbic seronegative autoimmune encephalitis (36%). Detailed survey results are presented in the manuscript and a summary of the diagnostic and therapeutic recommendations is presented at the conclusion.
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Affiliation(s)
- Hesham Abboud
- Neurology, Case Western Reserve University, Cleveland, Ohio, USA
- Multiple Sclerosis and Neuroimmunology Program, University Hospitals of Cleveland, Cleveland, Ohio, USA
| | - John Probasco
- Neurology, Johns Hopkins Medicine, Baltimore, Maryland, USA
| | - Sarosh R Irani
- Oxford Autoimmune Neurology Group, John Radcliffe Hospital, Oxford, UK
| | - Beau Ances
- Neurology, Washington University in St Louis, St Louis, Missouri, USA
| | - David R Benavides
- Neurology, University of Maryland School of Medicine, Baltimore, Maryland, USA
| | - Michael Bradshaw
- Neurology, Rosalind Franklin University of Medicine and Science, North Chicago, Illinois, USA
- Neurology, Billings Clinic, Billings, Montana, USA
| | - Paulo Pereira Christo
- Neurology, Minas Gerais Federal University Risoleta Tolentino Neves Hospital, Belo Horizonte, Brazil
| | - Russell C Dale
- Neuroimmunology Group, The University of Sydney Faculty of Medicine and Health, Sydney, New South Wales, Australia
| | | | | | - Avi Gadoth
- Neurology, Tel Aviv Sourasky Medical Center, Tel Aviv, Israel
| | | | - Elena Grebenciucova
- Neurology, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | | | - Soon-Tae Lee
- Neurology, Seoul National University College of Medicine, Seoul, The Republic of Korea
| | - Yuebing Li
- Neurology, Cleveland Clinic, Cleveland, Ohio, USA
| | - Marcelo Matiello
- Neurology, Massachusetts General Hospital, Boston, Massachusetts, USA
- Neurology, Harvard Medical School, Boston, Massachusetts, USA
| | - Anne Marie Morse
- Pediatric Neurology, Geisinger Commonwealth School of Medicine, Scranton, Pennsylvania, USA
| | | | - Galeno Rojas
- Neurology, Sanatorio de La Trinidad Mitre, Buenos Aires, Argentina
- Favaloro Foundation, Buenos Aires, Argentina
| | - Ian Rossman
- Neuro-developmental Science Center, Akron Children's Hospital, Akron, Ohio, USA
| | | | | | | | | | - Maarten Titulaer
- Neurology, Erasmus Medical Center, Rotterdam, Zuid-Holland, Netherlands
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16
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Wisch J, Hudson D, Coble DW, Xiong C, Babulal GM, Gordon BA, Flores SE, Dincer A, Benzinger TLS, Morris JC, Ances B. Socioeconomic status mediating sex and racial differences using the AT(N) framework. Alzheimers Dement 2020. [DOI: 10.1002/alz.041229] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Julie Wisch
- Washington University in St. Louis School of Medicine St. Louis MO USA
| | | | | | - Chengjie Xiong
- Washington University in St. Louis School of Medicine St. Louis MO USA
| | | | - Brian A Gordon
- Knight Alzheimer Disease Research Center St. Louis MO USA
| | - Shaney E Flores
- Washington University in St. Louis School of Medicine St. Louis MO USA
| | - Aylin Dincer
- Washington University in St. Louis School of Medicine St. Louis MO USA
| | | | - John C Morris
- Washington University School of Medicine St. Louis MO USA
| | - Beau Ances
- Washington University School of Medicine St. Louis MO USA
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17
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Butt O, Zhou A, Schindler S, Fagan A, Dipersio J, Ghobadi A, Ances B. NCMP-24. PRE-INFUSION NEUROFILAMENT LIGHT CHAIN (NFL) LEVELS PREDICT THE DEVELOPMENT OF IMMUNE EFFECTOR CELL-ASSOCIATED NEUROTOXICITY SYNDROME (ICANS). Neuro Oncol 2020. [DOI: 10.1093/neuonc/noaa215.535] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Neurological side effects after chimeric antigen receptor-modified (CAR) T cell therapy are common and potentially devastating. Termed immune effector cell-associated neurotoxicity syndrome (ICANS), symptoms range from mild encephalopathy to diffuse cerebral edema. No predictive biomarkers exist to identify individuals at risk for developing ICANS. Serum neurofilament light chain (NfL) is a well-established marker of neural injury known to dynamically change in neuro-inflammatory disorders (e.g. multiple sclerosis). We hypothesized individuals undergoing CAR T cell therapy who ultimately developed ICANS would have early and sustained elevations in serum NfL. We performed a retrospective analysis of serum samples from 11 individuals treated with tisagenlecleucel or axicabtagene ciloleucel (mean age 61.3, 18% female, 27% ICANS, all with peak severity score 3). Most individuals had a longitudinal sampling at baseline, pre-infusion, post-transfusion day (PTD) 1, PTD 3, PTD 7, PTD 14, and PTD 30. Serum NfL were assayed using a Simoa HD-1/HD-X kit (QuanterixTM). We found that individuals who developed ICANS had early and sustained elevations in serum NfL levels at baseline (p = 0.0075), pre-infusion (p = 0.0172), and PTD 3 (p = 0.0026) and PTD 30 (p = 0.0066). All group comparisons survived multiple comparison testing using false-discovery rate (FDR). Receiver operating characteristic (ROC) curve classification by logistic regression of serum NfL revealed an area under the curve (AUC) of 1.0 with a cut-off of 44 pg/mL. No correlation was observed between NfL levels and age, sex, or history of central nervous system involvement of the underlying malignancy. In summary, we found serum NfL levels are a robust, early marker for the development of ICANS. Our findings suggest the risk of developing ICANS reflects pre-transfusion host-factors, permitting the screening well in advance of drug administration.
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Affiliation(s)
- Omar Butt
- Washington University in Saint Louis, St. Louis, MO, USA
| | - Alice Zhou
- Washington University in Saint Louis, St. Louis, MO, USA
| | | | - Anne Fagan
- Washington University in Saint Louis, St. Louis, MO, USA
| | - John Dipersio
- Washington University in Saint Louis, St. Louis, MO, USA
| | - Armin Ghobadi
- Washington University in Saint Louis, St. Louis, MO, USA
| | - Beau Ances
- Washington University in Saint Louis, St. Louis, MO, USA
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18
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Handen BL, Lott IT, Christian BT, Schupf N, OBryant S, Mapstone M, Fagan AM, Lee JH, Tudorascu D, Wang M, Head E, Klunk W, Ances B, Lai F, Zaman S, Krinsky‐McHale S, Brickman AM, Rosas HD, Cohen A, Andrews H, Hartley S, Silverman W. The Alzheimer's Biomarker Consortium-Down Syndrome: Rationale and methodology. Alzheimers Dement (Amst) 2020; 12:e12065. [PMID: 32775597 PMCID: PMC7396809 DOI: 10.1002/dad2.12065] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 04/17/2020] [Revised: 06/05/2020] [Accepted: 06/08/2020] [Indexed: 12/23/2022]
Abstract
INTRODUCTION Adults with Down syndrome (DS) are at exceptionally high risk for Alzheimer's disease (AD), with virtually all individuals developing key neuropathological features by age 40. Identifying biomarkers of AD progression in DS can provide valuable insights into pathogenesis and suggest targets for disease modifying treatments. METHODS We describe the development of a multi-center, longitudinal study of biomarkers of AD in DS. The protocol includes longitudinal examination of clinical, cognitive, blood and cerebrospinal fluid-based biomarkers, magnetic resonance imaging and positron emission tomography measures (at 16-month intervals), as well as genetic modifiers of AD risk and progression. RESULTS Approximately 400 individuals will be enrolled in the study (more than 370 to date). The methodological approach from the administrative, clinical, neuroimaging, omics, neuropathology, and statistical cores is provided. DISCUSSION This represents the largest U.S.-based, multi-site, biomarker initiative of AD in DS. Findings can inform other multidisciplinary networks studying AD in the general population.
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Affiliation(s)
- Benjamin L. Handen
- Department of PsychiatryUniversity of PittsburghPittsburghPennsylvaniaUSA
| | - Ira T. Lott
- IrvineSchool of MedicineDepartment of PediatricsUniversity of CaliforniaOrangeCaliforniaUSA
| | | | - Nicole Schupf
- Taub Institute for Research on Alzheimer's Disease and the Aging BrainColumbia University Irving Medical CenterNew YorkNew YorkUSA
| | - Sid OBryant
- Department of Pharmacology and Neuroscience and Institute for Translational ResearchUniversity of North Texas Health Science CenterFort WorthTexasUSA
| | - Mark Mapstone
- IrvineDepartment of NeurologyUniversity of CaliforniaIrvineCaliforniaUSA
| | - Anne M. Fagan
- Department of NeurologyWashington University in St. LouisSt LouisMissouriUSA
| | - Joseph H. Lee
- Department of Neurology Center, Taub Institute for Research on Alzheimer's Disease and the Aging BrainColumbia UniversityCollege of Physicians and SurgeonsNew YorkNew YorkUSA
| | - Dana Tudorascu
- Department of PsychiatryUniversity of PittsburghPittsburghPennsylvaniaUSA
| | - Mei‐Cheng Wang
- Johns Hopkins Bloomberg School of Public HealthBaltimoreMarylandUSA
| | - Elizabeth Head
- IrvineDepartment of PathologyUniversity of CaliforniaIrvineCaliforniaUSA
| | - William Klunk
- Department of PsychiatryUniversity of PittsburghPittsburghPennsylvaniaUSA
| | - Beau Ances
- Washingston University School of Medicine in St. LouisSt. LouisMissouriUSA
| | - Florence Lai
- Massachusetts General HospitalDepartment of NeurologyHarvard Medical SchoolCharlestownMassachusettsUSA
| | - Shahid Zaman
- School of Clinical MedicineDepartment of PsychiatryUniversity of CambridgeCambridgeUK
| | - Sharon Krinsky‐McHale
- Department of PsychologyNYS Institute for Basic Research in Developmental DisabilitiesStaten IslandNew YorkUSA
| | - Adam M. Brickman
- Department of Neurology Center, Taub Institute for Research on Alzheimer's Disease and the Aging BrainColumbia UniversityCollege of Physicians and SurgeonsNew YorkNew YorkUSA
| | - H. Diana Rosas
- Massachusetts General HospitalDepartments of Neurology and RadiologyHarvard Medical SchoolCharlestownMassachusettsUSA
| | - Annie Cohen
- Department of PsychiatryUniversity of PittsburghPittsburghPennsylvaniaUSA
| | - Howard Andrews
- Taub Institute for Research on Alzheimer's Disease and the Aging BrainColumbia University Irving Medical CenterNew YorkNew YorkUSA
| | - Sigan Hartley
- Waisman CenterUniversity of Wisconsin MadisonMadisonWisconsinUSA
| | - Wayne Silverman
- IrvineSchool of MedicineDepartment of PediatricsUniversity of CaliforniaOrangeCaliforniaUSA
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Affiliation(s)
- Elizabeth Head
- Department of Pathology and Laboratory Medicine, University of California, Irvine, CA 92697, USA.
| | - Beau Ances
- Department of Neurology, Washington University, St Louis, MO, USA
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20
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Olive C, Ibanez L, Farias FHG, Wang F, Budde JP, Norton JB, Gentsch J, Morris JC, Li Z, Dube U, Del-Aguila J, Bergmann K, Bradley J, Benitez BA, Harari O, Fagan A, Ances B, Cruchaga C, Fernandez MV. Examination of the Effect of Rare Variants in TREM2, ABI3, and PLCG2 in LOAD Through Multiple Phenotypes. J Alzheimers Dis 2020; 77:1469-1482. [PMID: 32894242 PMCID: PMC7927150 DOI: 10.3233/jad-200019] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
BACKGROUND Rare variants in PLCG2 (p.P522R), ABI3 (p.S209F), and TREM2 (p.R47H, p.R62H) have been associated with late onset Alzheimer's disease (LOAD) risk in Caucasians. After the initial report, several studies have found positive results in cohorts of different ethnic background and with different phenotype. OBJECTIVE In this study, we aim to evaluate the association of rare coding variants in PLCG2, ABI3, and TREM2 with LOAD risk and their effect at different time points of the disease. METHODS We used a European American cohort to assess the association of the variants prior onset (using CSF Aβ42, tau, and pTau levels, and amyloid imaging as endophenotypes) and after onset (measured as rate of memory decline). RESULTS We confirm the association with LOAD risk of TREM2 p.R47H, p.R62H and ABI3 p.S209F variants, and the protective effect of PLCG2 p.P522R. In addition, ABI3 and TREM2 gene-sets showed significant association with LOAD risk. TREM2 p.R47H and PLCG2 p.P522R variants were also statistically associated with increase of amyloid imaging and AD progression, respectively. We did not observe any association of ABI3 p.S209F with any of the other AD endophenotypes. CONCLUSION The results of this study highlight the importance of including biomarkers and alternative phenotypes to better understand the role of novel candidate genes with the disease.
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Affiliation(s)
- Claudia Olive
- Neurogenomics and Informatics Center, Department of Psychiatry, Washington University School of Medicine, St. Louis, MO, USA
- Hope Center for Neurological Disorders, Washington University School of Medicine, St. Louis, MO, USA
| | - Laura Ibanez
- Neurogenomics and Informatics Center, Department of Psychiatry, Washington University School of Medicine, St. Louis, MO, USA
- Hope Center for Neurological Disorders, Washington University School of Medicine, St. Louis, MO, USA
| | - Fabiana H. Geraldo Farias
- Neurogenomics and Informatics Center, Department of Psychiatry, Washington University School of Medicine, St. Louis, MO, USA
- Hope Center for Neurological Disorders, Washington University School of Medicine, St. Louis, MO, USA
| | - Fengxian Wang
- Neurogenomics and Informatics Center, Department of Psychiatry, Washington University School of Medicine, St. Louis, MO, USA
- Hope Center for Neurological Disorders, Washington University School of Medicine, St. Louis, MO, USA
| | - John P. Budde
- Neurogenomics and Informatics Center, Department of Psychiatry, Washington University School of Medicine, St. Louis, MO, USA
- Hope Center for Neurological Disorders, Washington University School of Medicine, St. Louis, MO, USA
| | - Joanne B. Norton
- Neurogenomics and Informatics Center, Department of Psychiatry, Washington University School of Medicine, St. Louis, MO, USA
- Hope Center for Neurological Disorders, Washington University School of Medicine, St. Louis, MO, USA
- Knight Alzheimer’s Disease Research Center, Washington University School of Medicine, St. Louis, MO, USA
| | - Jen Gentsch
- Neurogenomics and Informatics Center, Department of Psychiatry, Washington University School of Medicine, St. Louis, MO, USA
- Hope Center for Neurological Disorders, Washington University School of Medicine, St. Louis, MO, USA
- Knight Alzheimer’s Disease Research Center, Washington University School of Medicine, St. Louis, MO, USA
| | - John C. Morris
- Hope Center for Neurological Disorders, Washington University School of Medicine, St. Louis, MO, USA
- Knight Alzheimer’s Disease Research Center, Washington University School of Medicine, St. Louis, MO, USA
| | - Zeran Li
- Neurogenomics and Informatics Center, Department of Psychiatry, Washington University School of Medicine, St. Louis, MO, USA
- Hope Center for Neurological Disorders, Washington University School of Medicine, St. Louis, MO, USA
| | - Umber Dube
- Neurogenomics and Informatics Center, Department of Psychiatry, Washington University School of Medicine, St. Louis, MO, USA
- Hope Center for Neurological Disorders, Washington University School of Medicine, St. Louis, MO, USA
| | - Jorge Del-Aguila
- Neurogenomics and Informatics Center, Department of Psychiatry, Washington University School of Medicine, St. Louis, MO, USA
- Hope Center for Neurological Disorders, Washington University School of Medicine, St. Louis, MO, USA
| | - Kristy Bergmann
- Neurogenomics and Informatics Center, Department of Psychiatry, Washington University School of Medicine, St. Louis, MO, USA
- Hope Center for Neurological Disorders, Washington University School of Medicine, St. Louis, MO, USA
| | - Joseph Bradley
- Neurogenomics and Informatics Center, Department of Psychiatry, Washington University School of Medicine, St. Louis, MO, USA
- Hope Center for Neurological Disorders, Washington University School of Medicine, St. Louis, MO, USA
| | - Bruno A. Benitez
- Neurogenomics and Informatics Center, Department of Psychiatry, Washington University School of Medicine, St. Louis, MO, USA
- Hope Center for Neurological Disorders, Washington University School of Medicine, St. Louis, MO, USA
| | - Oscar Harari
- Neurogenomics and Informatics Center, Department of Psychiatry, Washington University School of Medicine, St. Louis, MO, USA
- Hope Center for Neurological Disorders, Washington University School of Medicine, St. Louis, MO, USA
| | - Anne Fagan
- Department of Neurology, Washington University School of Medicine, St. Louis, MO, USA
| | - Beau Ances
- Department of Neurology, Washington University School of Medicine, St. Louis, MO, USA
| | - Carlos Cruchaga
- Neurogenomics and Informatics Center, Department of Psychiatry, Washington University School of Medicine, St. Louis, MO, USA
- Hope Center for Neurological Disorders, Washington University School of Medicine, St. Louis, MO, USA
| | - Maria Victoria Fernandez
- Neurogenomics and Informatics Center, Department of Psychiatry, Washington University School of Medicine, St. Louis, MO, USA
- Hope Center for Neurological Disorders, Washington University School of Medicine, St. Louis, MO, USA
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21
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Babulal GM, Stout SH, Williams MM, Rajasekar G, Harmon A, Vivoda J, Zuelsdorff M, Benzinger TLS, Morris JC, Ances B, Roe CM. Differences in Driving Outcomes Among Cognitively Normal African American and Caucasian Older Adults. J Racial Ethn Health Disparities 2019; 7:269-280. [PMID: 31686371 DOI: 10.1007/s40615-019-00655-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2019] [Revised: 10/11/2019] [Accepted: 10/14/2019] [Indexed: 11/30/2022]
Abstract
OBJECTIVE To examine the effect of race in driving performance and behavior prospectively among cognitively normal older adults. METHODS Cognitively normal participants (Clinical Dementia Rating 0), ≥ 65 years of age (n = 177) were selected from prospective, longitudinal studies at the Knight Alzheimer Disease Research Center at Washington University. Self-reported driving behavior (Driving Habits Questionnaire) and driving performance (road test) were annually assessed. Daily driving behavior data were collected using the Driving Real World In-Vehicle Evaluation System (DRIVES). Baseline differences between African Americans and Caucasians were tested using t tests and general linear models. Amyloid imaging and cerebrospinal fluid Alzheimer disease (AD) biomarkers were compared across groups. Linear mixed models examined change in daily driving behavior over time. Survival analyses tested time to a marginal or fail rating on the road test. RESULTS There were no differences between African Americans (n = 34) and Caucasians (n = 143) in age, sex, education, or vascular risk factors. Baseline self-reported driving behavior and road test performance were largely similar for both races. Longitudinal analyses using the DRIVES data aggregated monthly showed that African Americans had a greater reduction in number of trips made per month, miles driven per month, and trips with aggressive behavior compared to Caucasians. These effects remained after controlling for AD biomarkers, age, education, and sex. CONCLUSIONS In this sample of cognitively normal older adults, African Americans had a greater reduction of daily driving behavior compared to Caucasians. Observed racial differences may reflect differences in environmental/social factors, changes in cognition, and/or physical functioning.
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Affiliation(s)
- Ganesh M Babulal
- Charles F. and Joanne Knight Alzheimer's Disease Research Center, 660 S. Euclid Ave., Campus Box, St. Louis, MO, 8111, USA. .,Department of Neurology, Washington University, St. Louis, MO, USA.
| | - Sarah H Stout
- Charles F. and Joanne Knight Alzheimer's Disease Research Center, 660 S. Euclid Ave., Campus Box, St. Louis, MO, 8111, USA.,Department of Neurology, Washington University, St. Louis, MO, USA
| | | | - Ganesh Rajasekar
- Charles F. and Joanne Knight Alzheimer's Disease Research Center, 660 S. Euclid Ave., Campus Box, St. Louis, MO, 8111, USA.,Department of Neurology, Washington University, St. Louis, MO, USA
| | - Annie Harmon
- Department of Medicine, Washington University, St. Louis, MO, USA
| | | | | | - Tammie L S Benzinger
- Charles F. and Joanne Knight Alzheimer's Disease Research Center, 660 S. Euclid Ave., Campus Box, St. Louis, MO, 8111, USA.,Department of Radiology, Washington University, St. Louis, MO, USA.,Department of Neurosurgery, Washington University, St. Louis, MO, USA
| | - John C Morris
- Charles F. and Joanne Knight Alzheimer's Disease Research Center, 660 S. Euclid Ave., Campus Box, St. Louis, MO, 8111, USA.,Department of Neurology, Washington University, St. Louis, MO, USA.,Department of Radiology, Washington University, St. Louis, MO, USA.,Hope Center for Neurological Disorders, Washington University, St. Louis, MO, USA.,Department of Pathology and Immunology, Washington University, St. Louis, MO, USA.,Department of Physical Therapy, Washington University, St. Louis, MO, USA.,Department of Occupational Therapy, Washington University, St. Louis, MO, USA
| | - Beau Ances
- Charles F. and Joanne Knight Alzheimer's Disease Research Center, 660 S. Euclid Ave., Campus Box, St. Louis, MO, 8111, USA.,Department of Neurology, Washington University, St. Louis, MO, USA.,Hope Center for Neurological Disorders, Washington University, St. Louis, MO, USA
| | - Catherine M Roe
- Charles F. and Joanne Knight Alzheimer's Disease Research Center, 660 S. Euclid Ave., Campus Box, St. Louis, MO, 8111, USA.,Department of Neurology, Washington University, St. Louis, MO, USA
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22
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Smith RX, Guha A, Vaida F, Paul RH, Ances B. Prefrontal Recruitment Mitigates Risk-Taking Behavior in Human Immunodeficiency Virus-Infected Young Adults. Clin Infect Dis 2019; 66:1595-1601. [PMID: 29177412 DOI: 10.1093/cid/cix1031] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2017] [Accepted: 11/17/2017] [Indexed: 01/04/2023] Open
Abstract
Background Human immunodeficiency virus (HIV)-infected (HIV+) young adults often engage in risk-taking behavior. However, the disruptive effects of HIV on the neurobiological underpinnings of risky decision making are not well understood. Methods Risky decision making, measured via the Iowa Gambling Task (IGT), was compared voxel-wise to resting cerebral blood flow (rCBF) acquired via arterial spin labeling. Separate topographical maps were obtained for HIV-uninfected (HIV-; n = 62) and HIV+ (n = 41) young adults (18-24 years old) and were compared to the full cohort of participants. For the HIV+ group, rCBF was compared to recent and nadir CD4. Results IGT performance was supported by rCBF in 3 distinct brain regions: regions I, II, and III. The relationship between IGT performance and rCBF in HIV+ individuals was most robust in region I, the ventromedial prefrontal and insular cortices. Region II contained strong relationships for both HIV- and HIV+. Region III, dorsolateral prefrontal and posterior cingulate cortices, contained relationships that were strongest for HIV- controls. IGT performance was intact among HIV+ participants with higher rCBF in either region I or region III. By contrast, performance was worse among HIV+ individuals with lower rCBF in both regions I and III when compared to HIV- controls (P = .01). rCBF in region III was reduced in HIV+ compared with HIV- individuals (P = .04), and positively associated with nadir CD4 cell count (P = .02). Conclusions Recruitment of executive systems (region III) mitigates risk-taking behavior in HIV+ and HIV- individuals. Recruitment of reward systems (region I) mitigates risk-taking behavior when region III is disrupted due to immunological compromise. Identifying individual recruitment patterns may aid anatomically directed therapeutics or psychosocial interventions.
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Affiliation(s)
- Robert X Smith
- Department of Neurology, Washington University in St Louis, Missouri
| | - Anika Guha
- Department of Neurology, Washington University in St Louis, Missouri
| | - Florin Vaida
- Division of Biostatistics and Bioinformatics, University of California, San Diego
| | - Robert H Paul
- Missouri Institute of Mental Health, University of Missouri in St Louis
| | - Beau Ances
- Department of Neurology, Washington University in St Louis, Missouri
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23
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Wells E, Hacohen Y, Waldman A, Tillema JM, Soldatos A, Ances B, Benseler S, Bielekova B, Dale RC, Dalmau J, Gaillard W, Gorman M, Greenberg B, Hyslop A, Pardo CA, Tasker RC, Yeh EA, Bar-Or A, Pittock S, Vanderver A, Banwell B. Author Correction: Neuroimmune disorders of the central nervous system in children in the molecular era. Nat Rev Neurol 2018; 14:749. [PMID: 30442924 DOI: 10.1038/s41582-018-0077-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
In the original version of this Review published online and in print, the contribution of attendees of the International Neuroimmune Meeting to the content of the Review was not acknowledged. The author list has been corrected in the PDF and HTML versions of this article to acknowledge that the Review was written on behalf of attendees of the International Neuroimmune Meeting, and the names of the attendees have been added to the HTML version.
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Affiliation(s)
- Elizabeth Wells
- Center for Neuroscience and Behavioral Medicine, Children's National Health System, Washington, DC, USA
| | - Yael Hacohen
- Department of Neuroinflammation, Queen Square MS Centre, UCL Institute of Neurology, London, UK. .,Paediatric Neurology, Great Ormond Street Hospital, London, UK.
| | - Amy Waldman
- Department of Neurology and Pediatric Multiple Sclerosis Clinic, Children's Hospital of Philadelphia, Philadelphia, PA, USA
| | - Jan M Tillema
- Department of Neurology, Mayo Clinic, Rochester, MN, USA
| | - Ariane Soldatos
- National Institute of Neurological Disorders and Stroke, NIH, Bethesda, MD, USA
| | - Beau Ances
- Department of Neurology, Washington University in St. Louis, St. Louis, MO, USA
| | - Susanne Benseler
- Section of Rheumatology, Department of Pediatrics, Alberta Children's Hospital, Calgary, Alberta, Canada
| | - Bibi Bielekova
- Neuroimmunological Diseases Unit, National Institute of Neurological Disorders and Stroke, NIH, Bethesda, MD, USA
| | - Russel C Dale
- Institute for Neuroscience and Muscle Research, Kids Research Institute at the Children's Hospital at Westmead, University of Sydney, Westmead, New South Wales, Australia
| | - Josep Dalmau
- ICREA- IDIBAPS, Hospital Clínic, University of Barcelona, Barcelona, Spain.,Department of Neurology, University of Pennsylvania, Philadelphia, PA, USA
| | - William Gaillard
- Center for Neuroscience and Behavioral Medicine, Children's National Health System, Washington, DC, USA
| | - Mark Gorman
- Department of Neurology, Boston Children's Hospital, Boston, MA, USA
| | - Benjamin Greenberg
- Department of Neurology and Neurotherapeutics and Department of Pediatrics, University of Texas Southwestern, Dallas, TX, USA
| | - Ann Hyslop
- Department of Pediatric Neurology and Epilepsy, Miami Children's Hospital, Miami, FL, USA
| | - Carlos A Pardo
- Johns Hopkins Transverse Myelitis Center, Baltimore, MD, USA
| | - Robert C Tasker
- Department of Neurocritical Care, Boston Children's Hospital, Boston, MA, USA
| | - E Ann Yeh
- Department of Paediatrics, Division of Neurology, The Hospital for Sick Children, University of Toronto, Toronto, Ontario, Canada
| | - Amit Bar-Or
- Department of Neurology and Neurosurgery, Montreal Neurological Institute and Hospital, McGill University, Montreal, Quebec, Canada
| | - Sean Pittock
- Department of Neurology, Mayo Clinic, Rochester, MN, USA.,Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN, USA
| | - Adeline Vanderver
- Department of Neurology and Pediatric Multiple Sclerosis Clinic, Children's Hospital of Philadelphia, Philadelphia, PA, USA
| | - Brenda Banwell
- Department of Neurology and Pediatric Multiple Sclerosis Clinic, Children's Hospital of Philadelphia, Philadelphia, PA, USA.
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24
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Schultz SA, Gordon BA, Mishra S, Morris JC, Duchek JM, Balota DA, Benzinger TL, Ances B. [P1–351]: THE ASSOCIATION BETWEEN PERSONALITY AND TAU PET DEPOSITION IN COGNITIVELY NORMAL OLDER ADULTS: FINDINGS FROM THE KNIGHT ALZHEIMER DISEASE RESEARCH CENTER. Alzheimers Dement 2017. [DOI: 10.1016/j.jalz.2017.06.367] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Affiliation(s)
| | - Brian A. Gordon
- Washington University School of MedicineSt. LouisMOUSA
- Knight Alzheimer's Disease Research CenterSt. LouisMOUSA
| | - Shruti Mishra
- Washington University School of MedicineSt. LouisMOUSA
| | - John C. Morris
- Washington University in St. Louis School of MedicineSt. LouisMOUSA
| | - Janet M. Duchek
- Washington University in St. Louis School of MedicineSt. LouisMOUSA
| | - David A. Balota
- Washington University in St. Louis School of MedicineSt. LouisMOUSA
| | | | - Beau Ances
- Washington University in St. Louis School of MedicineSt. LouisMOUSA
- Knight Alzheimer's Disease Research CenterSt. LouisMOUSA
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25
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Roe CM, Benzinger TL, Fagan AM, Head DM, Ances B, Babulal GM, Stout SH, Grant EA, Holtzman DM, Morris JC. [P4–463]: PREDICTION OF INCIDENT DEMENTIA: LONGITUDINAL BIOMARKER AND CLINICAL CHANGES BEFORE AND AFTER. Alzheimers Dement 2017. [DOI: 10.1016/j.jalz.2017.07.624] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Catherine M. Roe
- Washington University School of MedicineSt. LouisMOUSA
- Washington UniversitySt. LouisMOUSA
| | | | - Anne M. Fagan
- Washington University School of MedicineSt. LouisMOUSA
| | | | - Beau Ances
- Washington University School of MedicineSt. LouisMOUSA
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26
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Wang Q, Wang Y, Shimony JS, Owen CJ, Liu J, Fagan AM, Cairns NJ, Ances B, Morris JC, Benzinger TL. IC‐P‐172: Simultaneous Quantification of White Matter Abnormalities and Vasogenic Edema in Early Alzheimer Disease. Alzheimers Dement 2016. [DOI: 10.1016/j.jalz.2016.06.203] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Affiliation(s)
- Qing Wang
- Washington University School of MedicineSt. LouisMO USA
- Knight Alzheimer's Disease Research CenterSt. LouisMO USA
| | - Yong Wang
- Washington University School of MedicineSt. LouisMO USA
| | | | | | - Jingxia Liu
- Washington University School of MedicineSt. LouisMO USA
| | - Anne M. Fagan
- Knight Alzheimer's Disease Research CenterSt. LouisMO USA
- Washington University School of MedicineSt. LouisMO USA
| | - Nigel J. Cairns
- Knight Alzheimer's Disease Research CenterSt. LouisMO USA
- Washington University School of MedicineSt. LouisMO USA
| | - Beau Ances
- Knight Alzheimer's Disease Research CenterSt. LouisMO USA
- Washington University School of MedicineSt. LouisMO USA
| | - John C. Morris
- Knight Alzheimer's Disease Research CenterSt. LouisMO USA
- Washington University School of MedicineSt. LouisMO USA
| | - Tammie L.S. Benzinger
- Knight Alzheimer's Disease Research CenterSt. LouisMO USA
- Washington University in St. Louis School of MedicineSt. LouisMO USA
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27
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Benzinger TL, Gordon BA, Friedrichsen KA, Su Y, Christensen J, Hornbeck RC, Mishra S, Aldea P, Cash L, Ances B, McConathy J, Koeppe RA, McDade E, Cairns NJ, Morris JC, Bateman R, Buckles V. O5‐01‐06: TAU Pet Imaging with AV‐1451 in Autosomal Dominant Alzheimer's Disease: Update from the Dominantly Inherited Alzheimer Network (DIAN). Alzheimers Dement 2016. [DOI: 10.1016/j.jalz.2016.06.709] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Affiliation(s)
- Tammie L.S. Benzinger
- Knight Alzheimer's Disease Research CenterSt. LouisMO USA
- Washington University in St. Louis School of MedicineSt. LouisMO USA
| | - Brian Andrew Gordon
- Knight Alzheimer's Disease Research CenterSt. LouisMO USA
- Washington University in St. Louis School of MedicineSt. LouisMO USA
| | | | - Yi Su
- Washington University in St. Louis School of MedicineSt. LouisMO USA
| | - Jon Christensen
- Washington University in St. Louis School of MedicineSt. LouisMO USA
| | | | - Shruti Mishra
- Washington University School of MedicineSt. LouisMO USA
| | | | - Lisa Cash
- Washington University School of MedicineSaint LouisMO USA
| | - Beau Ances
- Knight Alzheimer's Disease Research CenterSt. LouisMO USA
- Washington University in St. LouisSt. LouisMO USA
| | | | | | - Eric McDade
- Washington University at St. LouisSt. LouisMO USA
| | | | - John C. Morris
- Knight Alzheimer's Disease Research CenterSt. LouisMO USA
- Washington University in St. LouisSt. LouisMO USA
| | - Randall Bateman
- Knight Alzheimer's Disease Research CenterSt. LouisMO USA
- Washington University School of MedicineSt. LouisMO USA
- Hope Center for Neurological DisordersSt. LouisMO USA
| | - Virginia Buckles
- Knight Alzheimer Disease Research Center, Washington University School of MedicineSt. LouisMO USA
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28
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Friedrichsen KA, Ghoshal N, Joseph-Mathurin N, Mishra S, Su Y, Christensen J, Aldea P, McConathy J, Gordon BA, Ances B, Cairns NJ, Morris JC, Benzinger TLS. P3‐234: Similarities and Differences in Patterns of [F18]‐AV‐1451 and [F18]‐FDG in Frontotemporal Dementia. Alzheimers Dement 2016. [DOI: 10.1016/j.jalz.2016.06.1896] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
| | - Nupur Ghoshal
- Washington University School of MedicineSt. LouisMO USA
| | | | - Shruti Mishra
- Washington University School of MedicineSt. LouisMO USA
| | - Yi Su
- Washington University School of MedicineSt. LouisMO USA
| | | | | | | | | | - Beau Ances
- Washington University School of MedicineSt. LouisMO USA
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29
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Wang Q, Wang Y, Shimony JS, Owen CJ, Liu J, Fagan AM, Cairns NJ, Ances B, Morris JC, Benzinger TLS. P3‐260: Simultaneous Quantification of White Matter Abnormalities and Vasogenic Edema in Early Alzheimer's Disease. Alzheimers Dement 2016. [DOI: 10.1016/j.jalz.2016.06.1923] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Qing Wang
- Knight Alzheimer's Disease Research CenterSt. LouisMO USA
- Washington University School of MedicineSt. LouisMO USA
| | - Yong Wang
- Washington University School of MedicineSt. LouisMO USA
| | | | | | - Jingxia Liu
- Washington University School of MedicineSt. LouisMO USA
| | - Anne M. Fagan
- Knight Alzheimer's Disease Research CenterSt. LouisMO USA
- Washington University School of MedicineSt. LouisMO USA
| | - Nigel J. Cairns
- Knight Alzheimer's Disease Research CenterSt. LouisMO USA
- Washington University School of MedicineSt. LouisMO USA
| | - Beau Ances
- Knight Alzheimer's Disease Research CenterSt. LouisMO USA
- Washington University School of MedicineSt. LouisMO USA
| | - John C. Morris
- Knight Alzheimer's Disease Research CenterSt. LouisMO USA
- Washington University School of MedicineSt. LouisMO USA
| | - Tammie LS. Benzinger
- Knight Alzheimer's Disease Research CenterSt. LouisMO USA
- Washington University in St. Louis School of MedicineSt. LouisMO USA
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30
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Schwarz AJ, Gordon BA, Tanenbaum A, Morris JC, Benzinger TLS, Ances B. IC‐P‐098: Functional Connectivity with Anterior Temporal Lobe Regions Ordered According to The Braak Progression Scheme Reveals Sequential Coupling to Default Mode and Then Sensory Networks. Alzheimers Dement 2016. [DOI: 10.1016/j.jalz.2016.06.127] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Affiliation(s)
| | | | | | - John C. Morris
- Washington University in St. LouisSt. LouisMO USA
- Knight Alzheimer's Disease Research CenterSt. LouisMO USA
| | - Tammie LS. Benzinger
- Knight Alzheimer's Disease Research CenterSt. LouisMO USA
- Washington University in St. Louis School of MedicineSt. LouisMO USA
| | - Beau Ances
- Knight Alzheimer's Disease Research CenterSt. LouisMO USA
- Washington University School of MedicineSt. LouisMO USA
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31
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Wang Q, Wang Y, Christensen J, Shimony JS, Liu J, Fagan AM, Cairns NJ, Ances B, Morris JC, Benzinger TL. P4‐160: Imaging Marker of Neuroinflammation Predicts Progression in Alzheimer's Disease. Alzheimers Dement 2016. [DOI: 10.1016/j.jalz.2016.06.2252] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Affiliation(s)
- Qing Wang
- Knight Alzheimer's Disease Research CenterSt. LouisMO USA
- Washington University School of MedicineSt. LouisMO USA
| | - Yong Wang
- Washington University School of MedicineSt. LouisMO USA
| | - Jon Christensen
- Washington University in St. Louis School of MedicineSt. LouisMO USA
| | | | - Jingxia Liu
- Washington University School of MedicineSt. LouisMO USA
| | - Anne M. Fagan
- Knight Alzheimer's Disease Research CenterSt. LouisMO USA
- Washington University School of MedicineSt. LouisMO USA
| | - Nigel J. Cairns
- Knight Alzheimer's Disease Research CenterSt. LouisMO USA
- Washington University School of MedicineSt. LouisMO USA
| | - Beau Ances
- Knight Alzheimer's Disease Research CenterSt. LouisMO USA
- Washington University School of MedicineSt. LouisMO USA
| | - John C. Morris
- Knight Alzheimer's Disease Research CenterSt. LouisMO USA
- Washington University School of MedicineSt. LouisMO USA
| | - Tammie L.S. Benzinger
- Knight Alzheimer's Disease Research CenterSt. LouisMO USA
- Washington University in St. Louis School of MedicineSt. LouisMO USA
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32
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Ances B, Brier MR, Gordon BA, Friedrichsen KA, McCarthy JE, Stern A, Christensen J, Owen CJ, Aldea P, Su Y, Hassenstab J, Cairns NJ, Holtzman DM, Fagan AM, Morris JC, Lee Smith Benzinger T. IC‐P‐179: TAU Imaging Relationships With Amyloid B Imaging, CSF TAU/AB
42
, and Cognition in Alzheimer’s Disease. Alzheimers Dement 2016. [DOI: 10.1016/j.jalz.2016.06.210] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Beau Ances
- Washington University School of MedicineSt. LouisMO USA
| | | | | | | | | | - Ari Stern
- Washington University in St. LouisSaint LouisMO USA
| | - Jon Christensen
- Washington University in St. Louis School of MedicineSt. LouisMO USA
| | | | | | - Yi Su
- Washington University in St. Louis School of MedicineSt. LouisMO USA
| | - Jason Hassenstab
- Knight Alzheimer Disease Research CenterSt. LouisMO USA
- Washington University School of MedicineSt LouisMO USA
| | | | | | - Anne M. Fagan
- Washington University School of MedicineSt. LouisMO USA
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33
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Wang Q, Wang Y, Christensen J, Liu J, Fagan AM, Cairns NJ, Ances B, Morris JC, Benzinger TL. IC‐P‐169: Imaging Marker of Neuroinflammation Predicts Disease Progression in Alzheimer Disease. Alzheimers Dement 2016. [DOI: 10.1016/j.jalz.2016.06.200] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Qing Wang
- Washington University School of MedicineSt. LouisMO USA
- Knight Alzheimer's Disease Research CenterSt. LouisMO USA
| | - Yong Wang
- Washington University School of MedicineSt. LouisMO USA
| | - Jon Christensen
- Washington University in St. Louis School of MedicineSt. LouisMO USA
| | - Jingxia Liu
- Washington University School of MedicineSt. LouisMO USA
| | - Anne M. Fagan
- Knight Alzheimer's Disease Research CenterSt. LouisMO USA
- Washington University School of MedicineSt. LouisMO USA
| | - Nigel J. Cairns
- Knight Alzheimer's Disease Research CenterSt. LouisMO USA
- Washington University School of MedicineSt. LouisMO USA
| | - Beau Ances
- Knight Alzheimer's Disease Research CenterSt. LouisMO USA
- Washington University School of MedicineSt. LouisMO USA
| | - John C. Morris
- Knight Alzheimer's Disease Research CenterSt. LouisMO USA
- Washington University School of MedicineSt. LouisMO USA
| | - Tammie L.S. Benzinger
- Knight Alzheimer's Disease Research CenterSt. LouisMO USA
- Washington University in St. Louis School of MedicineSt. LouisMO USA
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34
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Friedrichsen KA, Mishra S, Gordon BA, Ghoshal N, Su Y, Joseph-Mathurin N, Christensen J, Aldea P, McConathy J, Ances B, Cairns NJ, Morris JC, Benzinger TLS. P1‐254: Principal Component Analysis of [18F]‐Av‐1451 TAU Pet in Alzheimer’S Disease and Frontotemporal Dementia. Alzheimers Dement 2016. [DOI: 10.1016/j.jalz.2016.06.1003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
| | - Shruti Mishra
- Washington University School of MedicineSt. LouisMO USA
| | | | - Nupur Ghoshal
- Washington University School of MedicineSt. LouisMO USA
| | - Yi Su
- Washington University School of MedicineSt. LouisMO USA
| | | | | | | | | | - Beau Ances
- Washington University School of MedicineSt. LouisMO USA
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35
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Schwarz AJ, Gordon BA, Tanenbaum A, Morris JC, Benzinger TLS, Ances B. P3‐283: Functional Connectivity with Anterior Temporal Lobe Regions Ordered According to the Braak Progression Scheme Reveals Sequential Coupling to Default Mode and Then Sensory Networks. Alzheimers Dement 2016. [DOI: 10.1016/j.jalz.2016.06.1946] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
| | | | | | - John C. Morris
- Washington University in St. LouisSt. LouisMO USA
- Knight Alzheimer's Disease Research CenterSt. LouisMO USA
| | - Tammie LS. Benzinger
- Knight Alzheimer's Disease Research CenterSt. LouisMO USA
- Washington University in St. Louis School of MedicineSt. LouisMO USA
| | - Beau Ances
- Knight Alzheimer's Disease Research CenterSt. LouisMO USA
- Washington University School of MedicineSt. LouisMO USA
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36
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Wang Q, Wang Y, Shimony JS, Liu J, Fagan AM, Cairns NJ, Ances B, Morris JC, Benzinger TLS. IC‐P‐171: White Matter Neuroinflammation in Preclinical Alzheimer Disease Can Be Quantified By Diffusion Basis Spectrum Imaging. Alzheimers Dement 2016. [DOI: 10.1016/j.jalz.2016.06.202] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Qing Wang
- Washington University School of MedicineSt. LouisMO USA
- Knight Alzheimer's Disease Research CenterSt. LouisMO USA
| | - Yong Wang
- Washington University School of MedicineSt. LouisMO USA
| | | | - Jingxia Liu
- Washington University School of MedicineSt. LouisMO USA
| | - Anne M. Fagan
- Knight Alzheimer's Disease Research CenterSt. LouisMO USA
- Washington University School of MedicineSt. LouisMO USA
| | - Nigel J. Cairns
- Knight Alzheimer's Disease Research CenterSt. LouisMO USA
- Washington University School of MedicineSt. LouisMO USA
| | - Beau Ances
- Knight Alzheimer's Disease Research CenterSt. LouisMO USA
- Washington University School of MedicineSt. LouisMO USA
| | - John C. Morris
- Knight Alzheimer's Disease Research CenterSt. LouisMO USA
- Washington University School of MedicineSt. LouisMO USA
| | - Tammie LS. Benzinger
- Knight Alzheimer's Disease Research CenterSt. LouisMO USA
- Washington University in St. Louis School of MedicineSt. LouisMO USA
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37
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Smith RX, Jann K, Ances B, Wang DJ. Wavelet-based regularity analysis reveals recurrent spatiotemporal behavior in resting-state fMRI. Hum Brain Mapp 2015; 36:3603-20. [PMID: 26096080 PMCID: PMC4635674 DOI: 10.1002/hbm.22865] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2014] [Revised: 05/04/2015] [Accepted: 05/18/2015] [Indexed: 11/12/2022] Open
Abstract
One of the major findings from multimodal neuroimaging studies in the past decade is that the human brain is anatomically and functionally organized into large-scale networks. In resting state fMRI (rs-fMRI), spatial patterns emerge when temporal correlations between various brain regions are tallied, evidencing networks of ongoing intercortical cooperation. However, the dynamic structure governing the brain's spontaneous activity is far less understood due to the short and noisy nature of the rs-fMRI signal. Here, we develop a wavelet-based regularity analysis based on noise estimation capabilities of the wavelet transform to measure recurrent temporal pattern stability within the rs-fMRI signal across multiple temporal scales. The method consists of performing a stationary wavelet transform to preserve signal structure, followed by construction of "lagged" subsequences to adjust for correlated features, and finally the calculation of sample entropy across wavelet scales based on an "objective" estimate of noise level at each scale. We found that the brain's default mode network (DMN) areas manifest a higher level of irregularity in rs-fMRI time series than rest of the brain. In 25 aged subjects with mild cognitive impairment and 25 matched healthy controls, wavelet-based regularity analysis showed improved sensitivity in detecting changes in the regularity of rs-fMRI signals between the two groups within the DMN and executive control networks, compared with standard multiscale entropy analysis. Wavelet-based regularity analysis based on noise estimation capabilities of the wavelet transform is a promising technique to characterize the dynamic structure of rs-fMRI as well as other biological signals.
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Affiliation(s)
- Robert X. Smith
- Laboratory of FMRI Technology (LOFT), Department of Neurology, Ahmanson‐Lovelace Brain Mapping CenterUniversity of CaliforniaLos AngelesCalifornia
| | - Kay Jann
- Laboratory of FMRI Technology (LOFT), Department of Neurology, Ahmanson‐Lovelace Brain Mapping CenterUniversity of CaliforniaLos AngelesCalifornia
| | - Beau Ances
- Department of Neurology, School of MedicineWashington University in Saint LouisSaint LouisMissouri
| | - Danny J.J. Wang
- Laboratory of FMRI Technology (LOFT), Department of Neurology, Ahmanson‐Lovelace Brain Mapping CenterUniversity of CaliforniaLos AngelesCalifornia
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38
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Wang L, Tanenbaum A, Owen CJ, Benzinger TL, Morris JC, Ances B. IC‐P‐043: Functional and structural brain changes in cognitively normal apolipoprotein E E4 homozygotes. Alzheimers Dement 2015. [DOI: 10.1016/j.jalz.2015.06.063] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Affiliation(s)
- Liang Wang
- Knight Alzheimer's Disease Research CenterSt. LouisMOUSA
- Washington University in St. LouisSt. LouisMOUSA
| | | | | | - Tammie L.S. Benzinger
- Washington University in St. LouisSt. LouisMOUSA
- Knight Alzheimer's Disease Research CenterSt. LouisMOUSA
| | - John C. Morris
- Washington University School of MedicineSt. LouisMOUSA
- Knight Alzheimer's Disease Research CenterSt. LouisMOUSA
| | - Beau Ances
- Knight Alzheimer's Disease Research CenterSt. LouisMOUSA
- Washington University in St. LouisSt. LouisMOUSA
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39
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Friedrichsen KA, Benzinger TL, Blazey T, Couture L, Vlassenko A, Joseph-Mathurin N, Owen CJ, Hornbeck RC, Su Y, Ances B, Morris JC. O1‐01‐06: Correlation between ASL and o‐15 water PET in the adult children study. Alzheimers Dement 2015. [DOI: 10.1016/j.jalz.2015.07.032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
| | | | - Tyler Blazey
- Washington University School of MedicineSt. LouisMOUSA
| | - Lars Couture
- Washington University School of MedicineSt. LouisMOUSA
| | | | | | | | | | - Yi Su
- Washington University in St. LouisSt. LouisMOUSA
| | - Beau Ances
- Washington University in St. LouisSt. LouisMOUSA
| | - John C. Morris
- Knight Alzheimer's Disease Research CenterSt. LouisMOUSA
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40
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Joseph-Mathurin N, Su Y, Vlassenko A, Couture L, Blazey T, Friedrichsen KA, Owen CJ, Hornbeck RC, Cash L, Stevenson TA, Ances B, Xiong C, Buckles V, Moulder KL, Morris JC, Bateman R, Raichle ME, Benzinger TL. IC‐P‐052: Comparison of cerebral glucose metabolism
18
F‐FDG, early frames of
11
C‐PIB, and cerebral blood flow
15
O‐H
2
O in autosomal dominant Alzheimer's disease. Alzheimers Dement 2015. [DOI: 10.1016/j.jalz.2015.06.073] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
| | - Yi Su
- Washington University School of MedicineSt. LouisMOUSA
| | | | - Lars Couture
- Washington University School of MedicineSt. LouisMOUSA
| | - Tyler Blazey
- Washington University School of MedicineSt. LouisMOUSA
| | | | | | | | - Lisa Cash
- Washington University School of MedicineSt. LouisMOUSA
| | | | - Beau Ances
- Washington University School of MedicineSt. LouisMOUSA
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41
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Wang Q, Wang Y, Shimony JS, Fagan AM, Cairns NJ, Ances B, Morris JC, Benzinger TL. IC‐P‐112: Diffusion tensor imaging detected neurodegeneration in preclinical Alzheimer disease. Alzheimers Dement 2015. [DOI: 10.1016/j.jalz.2015.06.134] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
- Qing Wang
- Washington University School of MedicineSt. LouisMOUSA
| | - Yong Wang
- Washington University School of MedicineSt. LouisMOUSA
| | | | - Anne M. Fagan
- Washington University School of MedicineSt. LouisMOUSA
- Knight Alzheimer's Disease Research CenterSt. LouisMOUSA
| | - Nigel J. Cairns
- Knight Alzheimer's Disease Research CenterSt. LouisMOUSA
- Washington University in St. LouisSt. LouisMOUSA
| | - Beau Ances
- Washington University School of MedicineSt. LouisMOUSA
- Knight Alzheimer's Disease Research CenterSt. LouisMOUSA
| | - John C. Morris
- Knight Alzheimer's Disease Research CenterSt. LouisMOUSA
- Washington University School of MedicineSt. LouisMOUSA
| | - Tammie L.S. Benzinger
- Knight Alzheimer's Disease Research CenterSt. LouisMOUSA
- Washington University School of MedicineSt. LouisMOUSA
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42
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Joseph-Mathurin N, Su Y, Vlassenko A, Jasielec MS, Blazey T, Friedrichsen KA, Owen CJ, Hornbeck RC, Stevenson TA, Cash L, Xiong C, Ringman JM, Brickman AM, Koeppe RA, Ances B, Raichle ME, Morris JC, Bateman R, Benzinger TL. P2‐138: Early frame of PiB and FDG in autosomal dominant Alzheimer's disease: Similarity, discrepancy, and clinical implication. Alzheimers Dement 2015. [DOI: 10.1016/j.jalz.2015.06.676] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
| | - Yi Su
- Washington University School of MedicineSt. LouisMOUSA
| | | | | | - Tyler Blazey
- Washington University School of MedicineSt. LouisMOUSA
| | | | | | | | | | - Lisa Cash
- Washington University School of MedicineSt. LouisMOUSA
| | | | | | | | | | - Beau Ances
- Washington University School of MedicineSt. LouisMOUSA
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43
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Friedrichsen KA, Benzinger TL, Joseph-Mathurin N, Blazey T, Christensen J, Gordon B, McConathy J, Su Y, Ances B, McFarlane S, Stevenson TA, Fagan AM, Morris JC. P2‐154: Patterns of tau binding in T807‐PET imaging. Alzheimers Dement 2015. [DOI: 10.1016/j.jalz.2015.06.693] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Affiliation(s)
| | - Tammie L.S. Benzinger
- Washington University School of MedicineSt. LouisMOUSA
- Knight Alzheimer's Disease Research CenterSt. LouisMOUSA
| | | | - Tyler Blazey
- Washington University School of MedicineSt. LouisMOUSA
| | | | - Brian Gordon
- Washington University School of MedicineSt. LouisMOUSA
| | | | - Yi Su
- Washington University School of MedicineSt. LouisMOUSA
| | - Beau Ances
- Washington University School of MedicineSt. LouisMOUSA
- Knight Alzheimer's Disease Research CenterSt. LouisMOUSA
| | | | | | - Anne M. Fagan
- Knight Alzheimer's Disease Research CenterSt. LouisMOUSA
- Washington University School of MedicineSt. LouisMOUSA
| | - John C. Morris
- Washington University School of MedicineSt. LouisMOUSA
- Knight Alzheimer's Disease Research CenterSt. LouisMOUSA
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44
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Wang L, Tanenbaum A, Owen CJ, Benzinger TL, Morris JC, Ances B. P2‐123: Functional and structural brain changes in cognitively normal apolipoprotein E ε4 homozygotes. Alzheimers Dement 2015. [DOI: 10.1016/j.jalz.2015.06.661] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
- Liang Wang
- Washington University in St. LouisSt. LouisMOUSA
- Knight Alzheimer's Disease Research CenterSt. LouisMOUSA
| | | | | | - Tammie L.S. Benzinger
- Washington University in St. LouisSt. LouisMOUSA
- Knight Alzheimer's Disease Research CenterSt. LouisMOUSA
| | - John C. Morris
- Washington University School of MedicineSt. LouisMOUSA
- Knight Alzheimer's Disease Research CenterSt. LouisMOUSA
| | - Beau Ances
- Washington University in St. LouisSt. LouisMOUSA
- Knight Alzheimer's Disease Research CenterSt. LouisMOUSA
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45
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Wang Q, Wang Y, Shimony JS, Fagan AM, Cairns NJ, Ances B, Morris JC, Benzinger TL. P3‐154: Diffusion tensor imaging detected neurodegeneration in preclinical Alzheimer disease. Alzheimers Dement 2015. [DOI: 10.1016/j.jalz.2015.06.1525] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
- Qing Wang
- Washington University School of MedicineSt.LouisMOUSA
| | - Yong Wang
- Washington University School of MedicineSt. LouisMOUSA
| | | | - Anne M. Fagan
- Washington University School of MedicineSt. LouisMOUSA
- Knight Alzheimer's Disease Research CenterSt. LouisMOUSA
| | - Nigel J. Cairns
- Knight Alzheimer's Disease Research CenterSt. LouisMOUSA
- Washington University in St. LouisSaint LouisMOUSA
| | - Beau Ances
- Washington University School of MedicineSaint LouisMOUSA
- Knight Alzheimer's Disease Research CenterSaint LouisMOUSA
| | - John C. Morris
- Knight Alzheimer's Disease Research CenterSt. LouisMOUSA
- Washington University School of MedicineSaint LouisMOUSA
| | - Tammie L.S. Benzinger
- Knight Alzheimer's Disease Research CenterSt. LouisMOUSA
- Washington University School of MedicineSaint LouisMOUSA
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46
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Paul RH, Joska JA, Woods C, Seedat S, Engelbrecht S, Hoare J, Heaps J, Valcour V, Ances B, Baker LM, Salminen LE, Stein DJ. Impact of the HIV Tat C30C31S dicysteine substitution on neuropsychological function in patients with clade C disease. J Neurovirol 2014; 20:627-35. [PMID: 25366660 DOI: 10.1007/s13365-014-0293-z] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2014] [Revised: 08/25/2014] [Accepted: 09/18/2014] [Indexed: 01/31/2023]
Abstract
Previous animal studies have identified a C31S residue substitution in the C30C31 dicysteine motif of the Tat protein that is associated with reduced neurovirulence in clade C human immunodeficiency virus (HIV). However, clinical studies of patients infected with clade C HIV have reported significant levels of cognitive impairment. To date, no study has specifically examined cognitive function in clade C-infected patients as a function of the presence or absence of the Tat C31 substitution. The present study investigated the impact of the Tat C30C31S genetic substitution among individuals residing in South Africa infected with clade C HIV that either exhibited the C30C31 motif (n = 128) or the C31S motif (n = 46). A control group of seronegative individuals was included to examine the overall impact of HIV on cognitive performance. All individuals completed a comprehensive neuropsychological battery consisting of tests sensitive to HIV. Results revealed that clade C-infected individuals performed significantly worse across cognitive tests compared to seronegative controls. However, there were no significant differences in cognitive performances between individuals with the C31S motif versus those without the C31S substitution. Proximal CD4 cell count and plasma viral load were unrelated to cognitive performances for either group. Results confirm that the C31S dicysteine motif substitution of the Tat protein does not appreciably moderate neuropsychological outcomes in clade C. Further, these findings highlight the importance of clinical management of cognitive symptoms among individuals infected with this viral clade worldwide.
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Affiliation(s)
- Robert H Paul
- Department of Psychology and Behavioral Neuroscience, University of Missouri-St. Louis, University Boulevard, St. Louis, USA,
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47
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Brier MR, Mitra A, Benzinger T, Morris JC, Ances B. P1‐291: DETECTION OF LOCAL DYSFUNCTION IN ALZHEIMER'S DISEASE USING RESTING‐STATE FUNCTIONAL MRI. Alzheimers Dement 2014. [DOI: 10.1016/j.jalz.2014.05.531] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Affiliation(s)
- Matthew R. Brier
- Washington University in St. LouisSt. LouisMissouriUnited States
| | - Anish Mitra
- Washington University in St. LouisSt LouisMissouriUnited States
| | | | - John C. Morris
- Washington University in St. LouisSt. LouisMissouriUnited States
| | - Beau Ances
- Washington University School of MedicineSt. LouisMissouriUnited States
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48
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Brier MR, Mitra A, Benzinger T, Morris JC, Ances B. IC‐P‐190: DETECTION OF LOCAL DYSFUNCTION IN ALZHEIMER'S DISEASE USING RESTING‐STATE FUNCTIONAL MRI. Alzheimers Dement 2014. [DOI: 10.1016/j.jalz.2014.05.197] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Matthew R. Brier
- Washington University in St. LouisSt. LouisMissouriUnited States
| | - Anish Mitra
- Washington University in St. LouisSt. LouisMissouriUnited States
| | - Tammie Benzinger
- Washington University School of MedicineSt. LouisMissouriUnited States
| | - John Carl Morris
- Washington University in St. LouisSt. LouisMissouriUnited States
| | - Beau Ances
- Washington University School of MedicineSt. LouisMissouriUnited States
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49
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Wang L, Ercole L, Blazey T, Benzinger T, Hassenstab J, Morris J, Ances B. IC‐P‐114: A refined cortical signature of Alzheimer's disease. Alzheimers Dement 2013. [DOI: 10.1016/j.jalz.2013.05.111] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- Liang Wang
- Washington University in St. Louis St. Louis Missouri United States
| | - Lindsay Ercole
- Washington University in St. Louis St. Louis Missouri United States
| | - Tyler Blazey
- Washington University in St. Louis St. Louis Missouri United States
| | - Tammie Benzinger
- Washington University School of Medicine St. Louis Missouri United States
| | - Jason Hassenstab
- Washington University in St. Louis St. Louis Missouri United States
| | - John Morris
- Washington University St. Louis Missouri United States
| | - Beau Ances
- Washington University School of Medicine St. Louis Missouri United States
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50
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Ercole L, Blazey T, Hornbeck R, Marcus D, Morris J, Ances B, Benzinger T. P3–136: A standardized method for Freesurfer quality control. Alzheimers Dement 2013. [DOI: 10.1016/j.jalz.2013.05.1207] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- Lindsay Ercole
- Washington University in St. Louis St. Louis Missouri United States
| | - Tyler Blazey
- Washington University School of Medicine St. Louis Missouri United States
| | - Russ Hornbeck
- Washington University in St. Louis St. Louis Missouri United States
| | - Daniel Marcus
- Washington University in St. Louis St. Louis Missouri United States
| | - John Morris
- Washington University St. Louis Missouri United States
| | - Beau Ances
- Washington University School of Medicine St. Louis Missouri United States
| | - Tammie Benzinger
- Washington University, Washington University School of Medicine Missouri United States
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