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Murray grossman

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https://www.readbyqxmd.com/read/28980714/-18-f-flortaucipir-tau-pet-distinguishes-established-progressive-supranuclear-palsy-from-controls-and-parkinson-s-disease-a-multicenter-study
#1
Daniel R Schonhaut, Corey T McMillan, Salvatore Spina, Bradford C Dickerson, Andrew Siderowf, Michael D Devous, Richard Tsai, Joseph Winer, David S Russell, Irene Litvan, Erik D Roberson, William W Seeley, Lea T Grinberg, Joel H Kramer, Bruce L Miller, Peter Pressman, Ilya Nasrallah, Suzanne L Baker, Stephen N Gomperts, Keith A Johnson, Murray Grossman, William J Jagust, Adam L Boxer, Gil D Rabinovici
OBJECTIVE: (18) F-flortaucipir (formerly (18) F-AV1451 or (18) F-T807) binds to neurofibrillary tangles in Alzheimer's disease (AD), but tissue studies assessing binding to tau aggregates in progressive supranuclear palsy (PSP) have yielded mixed results. We compared in vivo (18) F-flortaucipir uptake in patients meeting clinical research criteria for PSP (N=33) to normal controls (N=46) and patients meeting criteria for Parkinson's disease (PD, N=26). METHODS: Participants underwent MRI and positron emission tomography for amyloid-β ((11) C-PiB or (18) F-florbetapir) and tau ((18) F-flortaucipir)...
October 5, 2017: Annals of Neurology
https://www.readbyqxmd.com/read/28969902/production-of-verbs-related-to-body-movement-in-amyotrophic-lateral-sclerosis-als-and-parkinson-s-disease-pd
#2
Katheryn A Q Cousins, Sharon Ash, Murray Grossman
Theories of grounded cognition propose that action verb knowledge relies in part on motor processing regions, including premotor cortex. Accordingly, impaired action verb knowledge in patients with amyotrophic lateral sclerosis (ALS) and Parkinson's Disease (PD) is thought to be due to motor system degeneration. Upper motor neuron disease in ALS degrades the motor cortex and related pyramidal motor system, while disease in PD is centered in the basal ganglia and can spread to frontostriatal areas that are important to language functioning...
September 8, 2017: Cortex; a Journal Devoted to the Study of the Nervous System and Behavior
https://www.readbyqxmd.com/read/28914737/evidence-of-semantic-processing-impairments-in-behavioural-variant-frontotemporal-dementia-and-parkinson-s-disease
#3
Katheryn A Q Cousins, Murray Grossman
PURPOSE OF REVIEW: Category-specific impairments caused by brain damage can provide important insights into how semantic concepts are organized in the brain. Recent research has demonstrated that disease to sensory and motor cortices can impair perceptual feature knowledge important to the representation of semantic concepts. This evidence supports the grounded cognition theory of semantics, the view that lexical knowledge is partially grounded in perceptual experience and that sensory and motor regions support semantic representations...
September 13, 2017: Current Opinion in Neurology
https://www.readbyqxmd.com/read/28887373/optical-coherence-tomography-identifies-outer-retina-thinning-in-frontotemporal-degeneration
#4
Benjamin J Kim, David J Irwin, Delu Song, Ebenezer Daniel, Jennifer D Leveque, Aaishah R Raquib, Wei Pan, Gui-Shuang Ying, Tomas S Aleman, Joshua L Dunaief, Murray Grossman
OBJECTIVE: Whereas Alzheimer disease (AD) is associated with inner retina thinning visualized by spectral-domain optical coherence tomography (SD-OCT), we sought to determine if the retina has a distinguishing biomarker for frontotemporal degeneration (FTD). METHODS: Using a cross-sectional design, we examined retinal structure in 38 consecutively enrolled patients with FTD and 44 controls using a standard SD-OCT protocol. Retinal layers were segmented with the Iowa Reference Algorithm...
October 10, 2017: Neurology
https://www.readbyqxmd.com/read/28877758/neuron-loss-and-degeneration-in-the-progression-of-tdp-43-in-frontotemporal-lobar-degeneration
#5
Ahmed Yousef, John L Robinson, David J Irwin, Matthew D Byrne, Linda K Kwong, Edward B Lee, Yan Xu, Sharon X Xie, Lior Rennert, EunRan Suh, Vivianna M Van Deerlin, Murray Grossman, Virginia M-Y Lee, John Q Trojanowski
Frontotemporal lobar degeneration with TDP-43 inclusions (FTLD-TDP) is associated with the accumulation of pathological neuronal and glial intracytoplasmic inclusions as well as accompanying neuron loss. We explored if cortical neurons detected by NeuN decreased with increasing TDP-43 inclusion pathology in the postmortem brains of 63 patients with sporadic and familial FTLD-TDP. Semi-automated quantitative algorithms to quantify histology in tissue sections stained with antibodies specific for pathological or phosphorylated TDP-43 (pTDP-43) and NeuN were developed and validated in affected (cerebral cortex) and minimally affected (cerebellar cortex) brain regions of FTLD-TDP cases...
September 6, 2017: Acta Neuropathologica Communications
https://www.readbyqxmd.com/read/28747523/-18-f-flortaucipir-pet-mri-correlations-in-non-amnestic-and-amnestic-variants-of-alzheimer-disease
#6
Ilya M Nasrallah, Yin Jie Chen, Meng-Kang Hsieh, Jeffrey S Philips, Kylie Ternes, Grace Stockbower, Yvette Sheline, Corey T McMillan, Murray Grossman, David A Wolk
Non-amnestic Alzheimer disease (AD) variants, including posterior cortical atrophy (PCA) and logopenic variant of primary progressive aphasia (lvPPA), differ in distributions of tau aggregates and neurodegeneration compared to amnestic AD. We evaluated whether (18)F-flortaucipir (also called (18)F-AV-1451) Positron Emission Tomography (PET), targeting tau aggregates, detects these differences and compared this to magnetic resonance imaging (MRI) measures of gray matter (GM) atrophy. Methods: 5 PCA, 4 lvPPA, 6 age-matched AD, and 6 control subjects underwent (18)F-flortaucipir PET and MRI...
July 26, 2017: Journal of Nuclear Medicine: Official Publication, Society of Nuclear Medicine
https://www.readbyqxmd.com/read/28724588/automatic-measurement-of-prosody-in-behavioral-variant-ftd
#7
Naomi Nevler, Sharon Ash, Charles Jester, David J Irwin, Mark Liberman, Murray Grossman
OBJECTIVE: To help understand speech changes in behavioral variant frontotemporal dementia (bvFTD), we developed and implemented automatic methods of speech analysis for quantification of prosody, and evaluated clinical and anatomical correlations. METHODS: We analyzed semi-structured, digitized speech samples from 32 patients with bvFTD (21 male, mean age 63 ± 8.5, mean disease duration 4 ± 3.1 years) and 17 matched healthy controls (HC). We automatically extracted fundamental frequency (f0, the physical property of sound most closely correlating with perceived pitch) and computed pitch range on a logarithmic scale (semitone) that controls for individual and sex differences...
July 19, 2017: Neurology
https://www.readbyqxmd.com/read/28713256/baseline-performance-predicts-tdcs-mediated-improvements-in-language-symptoms-in-primary-progressive-aphasia
#8
Eric M McConathey, Nicole C White, Felix Gervits, Sherry Ash, H Branch Coslett, Murray Grossman, Roy H Hamilton
Primary Progressive Aphasia (PPA) is a neurodegenerative condition characterized by insidious irreversible loss of language abilities. Prior studies suggest that transcranial direct current stimulation (tDCS) directed toward language areas of the brain may help to ameliorate symptoms of PPA. In the present sham-controlled study, we examined whether tDCS could be used to enhance language abilities (e.g., picture naming) in individuals with PPA variants primarily characterized by difficulties with speech production (non-fluent and logopenic)...
2017: Frontiers in Human Neuroscience
https://www.readbyqxmd.com/read/28674154/message-from-the-editors-to-our-reviewers
#9
Robert A Gross, Bradford B Worrall, Anthony A Amato, Gregory D Cascino, Olga Ciccarelli, John R Corboy, Josep O Dalmau, Rebecca F Gottesman, Murray Grossman, John J Millichap, Jonathan W Mink, Stefan M Pulst, Ryan J Uitti
No abstract text is available yet for this article.
July 4, 2017: Neurology
https://www.readbyqxmd.com/read/28659753/neural-correlates-of-verbal-episodic-memory-and-lexical-retrieval-in-logopenic-variant-primary-progressive-aphasia
#10
Khaing T Win, John Pluta, Paul Yushkevich, David J Irwin, Corey T McMillan, Katya Rascovsky, David Wolk, Murray Grossman
Objective: Logopenic variant primary progressive aphasia (lvPPA) is commonly associated with Alzheimer's disease (AD) pathology. But lvPPA patients display different cognitive and anatomical profile from the common clinical AD patients, whose verbal episodic memory is primarily affected. Reports of verbal episodic memory difficulty in lvPPA are inconsistent, and we hypothesized that their lexical retrieval impairment contributes to verbal episodic memory performance and is associated with left middle temporal gyrus atrophy...
2017: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/28628244/phosphorylated-neurofilament-heavy-chain-a-biomarker-of-survival-for-c9orf72-associated-amyotrophic-lateral-sclerosis
#11
Tania F Gendron, Lillian M Daughrity, Michael G Heckman, Nancy N Diehl, Joanne Wuu, Timothy M Miller, Pau Pastor, John Q Trojanowski, Murray Grossman, James D Berry, William T Hu, Antonia Ratti, Michael Benatar, Vincenzo Silani, Jonathan D Glass, Mary Kay Floeter, Andreas Jeromin, Kevin B Boylan, Leonard Petrucelli
As potential treatments for C9ORF72-associated amyotrophic lateral sclerosis (c9ALS) approach clinical trials, the identification of prognostic biomarkers for c9ALS becomes a priority. We show that levels of phosphorylated neurofilament heavy chain (pNFH) in cerebrospinal fluid (CSF) predict disease status and survival in c9ALS patients, and are largely stable over time. Moreover, c9ALS patients exhibit higher pNFH levels, more rapid disease progression, and shorter survival after disease onset than ALS patients without C9ORF72 expansions...
July 2017: Annals of Neurology
https://www.readbyqxmd.com/read/28559805/semantic-feature-training-in-combination-with-transcranial-direct-current-stimulation-tdcs-for-progressive-anomia
#12
Jinyi Hung, Ashley Bauer, Murray Grossman, Roy H Hamilton, H B Coslett, Jamie Reilly
We examined the effectiveness of a 2-week regimen of a semantic feature training in combination with transcranial direct current stimulation (tDCS) for progressive naming impairment associated with primary progressive aphasia (N = 4) or early onset Alzheimer's Disease (N = 1). Patients received a 2-week regimen (10 sessions) of anodal tDCS delivered over the left temporoparietal cortex while completing a language therapy that consisted of repeated naming and semantic feature generation. Therapy targets consisted of familiar people, household items, clothes, foods, places, hygiene implements, and activities...
2017: Frontiers in Human Neuroscience
https://www.readbyqxmd.com/read/28527315/longitudinal-decline-in-speech-production-in-parkinson-s-disease-spectrum-disorders
#13
Sharon Ash, Charles Jester, Collin York, Olga L Kofman, Rachel Langey, Amy Halpin, Kim Firn, Sophia Dominguez Perez, Lama Chahine, Meredith Spindler, Nabila Dahodwala, David J Irwin, Corey McMillan, Daniel Weintraub, Murray Grossman
We examined narrative speech production longitudinally in non-demented (n=15) and mildly demented (n=8) patients with Parkinson's disease spectrum disorder (PDSD), and we related increasing impairment to structural brain changes in specific language and motor regions. Patients provided semi-structured speech samples, describing a standardized picture at two time points (mean±SD interval=38±24months). The recorded speech samples were analyzed for fluency, grammar, and informativeness. PDSD patients with dementia exhibited significant decline in their speech, unrelated to changes in overall cognitive or motor functioning...
August 2017: Brain and Language
https://www.readbyqxmd.com/read/28515265/clinical-marker-for-alzheimer-disease-pathology-in-logopenic-primary-progressive-aphasia
#14
Lucia A A Giannini, David J Irwin, Corey T McMillan, Sharon Ash, Katya Rascovsky, David A Wolk, Vivianna M Van Deerlin, Edward B Lee, John Q Trojanowski, Murray Grossman
OBJECTIVE: To determine whether logopenic features of phonologic loop dysfunction reflect Alzheimer disease (AD) neuropathology in primary progressive aphasia (PPA). METHODS: We performed a retrospective case-control study of 34 patients with PPA with available autopsy tissue. We compared baseline and longitudinal clinical features in patients with primary AD neuropathology to those with primary non-AD pathologies. We analyzed regional neuroanatomic disease burden in pathology-defined groups using postmortem neuropathologic data...
June 13, 2017: Neurology
https://www.readbyqxmd.com/read/28500752/which-ante-mortem-clinical-features-predict-progressive-supranuclear-palsy-pathology
#15
Gesine Respondek, Carolin Kurz, Thomas Arzberger, Yaroslau Compta, Elisabet Englund, Leslie W Ferguson, Ellen Gelpi, Armin Giese, David J Irwin, Wassilios G Meissner, Christer Nilsson, Alexander Pantelyat, Alex Rajput, John C van Swieten, Claire Troakes, Keith A Josephs, Anthony E Lang, Brit Mollenhauer, Ulrich Müller, Jennifer L Whitwell, Angelo Antonini, Kailash P Bhatia, Yvette Bordelon, Jean-Christophe Corvol, Carlo Colosimo, Richard Dodel, Murray Grossman, Jan Kassubek, Florian Krismer, Johannes Levin, Stefan Lorenzl, Huw Morris, Peter Nestor, Wolfgang H Oertel, Gil D Rabinovici, James B Rowe, Thilo van Eimeren, Gregor K Wenning, Adam Boxer, Lawrence I Golbe, Irene Litvan, Maria Stamelou, Günter U Höglinger
BACKGROUND: Progressive supranuclear palsy (PSP) is a neuropathologically defined disease presenting with a broad spectrum of clinical phenotypes. OBJECTIVE: To identify clinical features and investigations that predict or exclude PSP pathology during life, aiming at an optimization of the clinical diagnostic criteria for PSP. METHODS: We performed a systematic review of the literature published since 1996 to identify clinical features and investigations that may predict or exclude PSP pathology...
July 2017: Movement Disorders: Official Journal of the Movement Disorder Society
https://www.readbyqxmd.com/read/28467028/clinical-diagnosis-of-progressive-supranuclear-palsy-the-movement-disorder-society-criteria
#16
Günter U Höglinger, Gesine Respondek, Maria Stamelou, Carolin Kurz, Keith A Josephs, Anthony E Lang, Brit Mollenhauer, Ulrich Müller, Christer Nilsson, Jennifer L Whitwell, Thomas Arzberger, Elisabet Englund, Ellen Gelpi, Armin Giese, David J Irwin, Wassilios G Meissner, Alexander Pantelyat, Alex Rajput, John C van Swieten, Claire Troakes, Angelo Antonini, Kailash P Bhatia, Yvette Bordelon, Yaroslau Compta, Jean-Christophe Corvol, Carlo Colosimo, Dennis W Dickson, Richard Dodel, Leslie Ferguson, Murray Grossman, Jan Kassubek, Florian Krismer, Johannes Levin, Stefan Lorenzl, Huw R Morris, Peter Nestor, Wolfgang H Oertel, Werner Poewe, Gil Rabinovici, James B Rowe, Gerard D Schellenberg, Klaus Seppi, Thilo van Eimeren, Gregor K Wenning, Adam L Boxer, Lawrence I Golbe, Irene Litvan
BACKGROUND: PSP is a neuropathologically defined disease entity. Clinical diagnostic criteria, published in 1996 by the National Institute of Neurological Disorders and Stroke/Society for PSP, have excellent specificity, but their sensitivity is limited for variant PSP syndromes with presentations other than Richardson's syndrome. OBJECTIVE: We aimed to provide an evidence- and consensus-based revision of the clinical diagnostic criteria for PSP. METHODS: We searched the PubMed, Cochrane, Medline, and PSYCInfo databases for articles published in English since 1996, using postmortem diagnosis or highly specific clinical criteria as the diagnostic standard...
June 2017: Movement Disorders: Official Journal of the Movement Disorder Society
https://www.readbyqxmd.com/read/28416618/author-response-cognitive-reserve-in-frontotemporal-degeneration-neuroanatomic-and-neuropsychological-evidence
#17
Katerina Placek, Lauren Massimo, Murray Grossman, Corey T McMillan
No abstract text is available yet for this article.
April 18, 2017: Neurology
https://www.readbyqxmd.com/read/28386933/novel-conformation-selective-alpha-synuclein-antibodies-raised-against-different-in-vitro-fibril-forms-show-distinct-patterns-of-lewy-pathology-in-parkinson-s-disease
#18
D J Covell, J L Robinson, R S Akhtar, M Grossman, D Weintraub, H M Bucklin, R M Pitkin, D Riddle, A Yousef, J Q Trojanowski, V M-Y Lee
AIMS: The aim of this study was to test the hypothesis that different conformations of misfolded α-synuclein (α-syn) are present in Parkinson's disease (PD) brain. METHODS: Using two previously characterized conformations of α-syn fibrils, we generated new conformation-selective α-syn monoclonal antibodies (mAbs). We then interrogated multiple brain regions in a well-characterized autopsy cohort of PD patients (n = 49) with these mAbs, Syn7015 and Syn9029. RESULTS: Syn7015 detects Lewy bodies (LBs) and Lewy neurites (LNs) formed by pathological α-syn in all brain regions tested, and is particularly sensitive to LNs and small Lewy dots, inclusions believed to form early in the disease...
April 7, 2017: Neuropathology and Applied Neurobiology
https://www.readbyqxmd.com/read/28356511/poly-gp-proteins-are-a-useful-pharmacodynamic-marker-for-c9orf72-associated-amyotrophic-lateral-sclerosis
#19
Tania F Gendron, Jeannie Chew, Jeannette N Stankowski, Lindsey R Hayes, Yong-Jie Zhang, Mercedes Prudencio, Yari Carlomagno, Lillian M Daughrity, Karen Jansen-West, Emilie A Perkerson, Aliesha O'Raw, Casey Cook, Luc Pregent, Veronique Belzil, Marka van Blitterswijk, Lilia J Tabassian, Chris W Lee, Mei Yue, Jimei Tong, Yuping Song, Monica Castanedes-Casey, Linda Rousseau, Virginia Phillips, Dennis W Dickson, Rosa Rademakers, John D Fryer, Beth K Rush, Otto Pedraza, Ana M Caputo, Pamela Desaro, Carla Palmucci, Amelia Robertson, Michael G Heckman, Nancy N Diehl, Edythe Wiggs, Michael Tierney, Laura Braun, Jennifer Farren, David Lacomis, Shafeeq Ladha, Christina N Fournier, Leo F McCluskey, Lauren B Elman, Jon B Toledo, Jennifer D McBride, Cinzia Tiloca, Claudia Morelli, Barbara Poletti, Federica Solca, Alessandro Prelle, Joanne Wuu, Jennifer Jockel-Balsarotti, Frank Rigo, Christine Ambrose, Abhishek Datta, Weixing Yang, Denitza Raitcheva, Giovanna Antognetti, Alexander McCampbell, John C Van Swieten, Bruce L Miller, Adam L Boxer, Robert H Brown, Robert Bowser, Timothy M Miller, John Q Trojanowski, Murray Grossman, James D Berry, William T Hu, Antonia Ratti, Bryan J Traynor, Matthew D Disney, Michael Benatar, Vincenzo Silani, Jonathan D Glass, Mary Kay Floeter, Jeffrey D Rothstein, Kevin B Boylan, Leonard Petrucelli
There is no effective treatment for amyotrophic lateral sclerosis (ALS), a devastating motor neuron disease. However, discovery of a G4C2 repeat expansion in the C9ORF72 gene as the most common genetic cause of ALS has opened up new avenues for therapeutic intervention for this form of ALS. G4C2 repeat expansion RNAs and proteins of repeating dipeptides synthesized from these transcripts are believed to play a key role in C9ORF72-associated ALS (c9ALS). Therapeutics that target G4C2 RNA, such as antisense oligonucleotides (ASOs) and small molecules, are thus being actively investigated...
March 29, 2017: Science Translational Medicine
https://www.readbyqxmd.com/read/28340083/evaluating-the-patterns-of-aging-related-tau-astrogliopathy-unravels-novel-insights-into-brain-aging-and-neurodegenerative-diseases
#20
Gabor G Kovacs, John L Robinson, Sharon X Xie, Edward B Lee, Murray Grossman, David A Wolk, David J Irwin, Dan Weintraub, Christopher F Kim, Theresa Schuck, Ahmed Yousef, Stephanie T Wagner, Eunran Suh, Vivianna M Van Deerlin, Virginia M-Y Lee, John Q Trojanowski
The term "aging-related tau astrogliopathy" (ARTAG) describes pathological accumulation of abnormally phosphorylated tau protein in astrocytes. We evaluated the correlates of ARTAG types (i.e., subpial, subependymal, white and gray matter, and perivascular) in different neuroanatomical regions. Clinical, neuropathological, and genetic (eg, APOE ε4 allele, MAPT H1/H2 haplotype) data from 628 postmortem brains from subjects were investigated; most of the patients had been longitudinally followed at the University of Pennsylvania...
April 1, 2017: Journal of Neuropathology and Experimental Neurology
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