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JAMA Neurology

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https://read.qxmd.com/read/31312836/associations-of-physical-activity-and-%C3%AE-amyloid-with-longitudinal-cognition-and-neurodegeneration-in-clinically-normal-older-adults
#1
Jennifer S Rabin, Hannah Klein, Dylan R Kirn, Aaron P Schultz, Hyun-Sik Yang, Olivia Hampton, Shu Jiang, Rachel F Buckley, Anand Viswanathan, Trey Hedden, Jeremy Pruzin, Wai-Ying Wendy Yau, Edmarie Guzmán-Vélez, Yakeel T Quiroz, Michael Properzi, Gad A Marshall, Dorene M Rentz, Keith A Johnson, Reisa A Sperling, Jasmeer P Chhatwal
Importance: In the absence of disease-modifying therapies for Alzheimer disease, there is a critical need to identify modifiable risk factors that may delay the progression of Alzheimer disease. Objective: To examine whether physical activity moderates the association of β-amyloid (Aβ) burden with longitudinal cognitive decline and neurodegeneration in clinically normal individuals and to examine whether these associations are independent of vascular risk. Design, Setting, and Participants: This longitudinal observational study included clinically normal participants from the Harvard Aging Brain Study...
July 16, 2019: JAMA Neurology
https://read.qxmd.com/read/31305929/prevalence-of-biologically-vs-clinically-defined-alzheimer-spectrum-entities-using-the-national-institute-on-aging-alzheimer-s-association-research-framework
#2
Clifford R Jack, Terry M Therneau, Stephen D Weigand, Heather J Wiste, David S Knopman, Prashanthi Vemuri, Val J Lowe, Michelle M Mielke, Rosebud O Roberts, Mary M Machulda, Jonathan Graff-Radford, David T Jones, Christopher G Schwarz, Jeffrey L Gunter, Matthew L Senjem, Walter A Rocca, Ronald C Petersen
Importance: A National Institute on Aging-Alzheimer's Association (NIA-AA) workgroup recently published a research framework in which Alzheimer disease is defined by neuropathologic or biomarker evidence of β-amyloid plaques and tau tangles and not by clinical symptoms. Objectives: To estimate the sex- and age-specific prevalence of 3 imaging biomarker-based definitions of the Alzheimer disease spectrum from the NIA-AA research framework and to compare these entities with clinically defined diagnostic entities commonly linked with Alzheimer disease...
July 15, 2019: JAMA Neurology
https://read.qxmd.com/read/31305922/association-of-obesity-with-multiple-sclerosis-risk-and-response-to-first-line-disease-modifying-drugs-in-children
#3
Brenda Huppke, David Ellenberger, Hannah Hummel, Wiebke Stark, Markus Röbl, Jutta Gärtner, Peter Huppke
Importance: Obesity reportedly increases the risk of pediatric multiple sclerosis (MS), but little is known about its association with disease course. Objective: To investigate the association of obesity with pediatric MS risk and with first-line therapy response among children with MS. Design, Setting, and Participants: This single-center retrospective study used the medical records and database at the Center for MS in Childhood and Adolescence, Göttingen, Germany...
July 15, 2019: JAMA Neurology
https://read.qxmd.com/read/31305918/association-of-extracellular-vesicle-biomarkers-with-alzheimer-disease-in-the-baltimore-longitudinal-study-of-aging
#4
Dimitrios Kapogiannis, Maja Mustapic, Michelle D Shardell, Sean T Berkowitz, Thomas C Diehl, Ryan D Spangler, Joyce Tran, Michael P Lazaropoulos, Sahil Chawla, Seema Gulyani, Erez Eitan, Yang An, Chiung-Wei Huang, Esther S Oh, Constantine G Lyketsos, Susan M Resnick, Edward J Goetzl, Luigi Ferrucci
Importance: Blood biomarkers able to diagnose Alzheimer disease (AD) at the preclinical stage would enable trial enrollment when the disease is potentially reversible. Plasma neuronal-enriched extracellular vesicles (nEVs) of patients with AD were reported to exhibit elevated levels of phosphorylated (p) tau, Aβ42, and phosphorylated insulin receptor substrate 1 (IRS-1). Objective: To validate nEV biomarkers as AD predictors. Design, Setting, Participants: This case-control study included longitudinal plasma samples from cognitively normal participants in the Baltimore Longitudinal Study of Aging (BLSA) cohort who developed AD up to January 2015 and age- and sex-matched controls who remained cognitively normal over a similar length of follow-up...
July 15, 2019: JAMA Neurology
https://read.qxmd.com/read/31305888/the-challenge-of-defining-alzheimer-disease-based-on-biomarkers-in-the-absence-of-symptoms
#5
Teresa Gomez-Isla, Matthew P Frosch
No abstract text is available yet for this article.
July 15, 2019: JAMA Neurology
https://read.qxmd.com/read/31305882/a-case-of-muscle-twitching-with-psoriasis
#6
Min Qian, Lan Qin, Hongzhi Guan
No abstract text is available yet for this article.
July 15, 2019: JAMA Neurology
https://read.qxmd.com/read/31305877/dysregulation-of-the-reward-and-learning-systems-in-tourette-syndrome
#7
Jens Kuhn, Juan Carlos Baldermann, Daniel Huys
No abstract text is available yet for this article.
July 15, 2019: JAMA Neurology
https://read.qxmd.com/read/31305865/combined-cerebral-microbleeds-with-lacunar-infarctions-in-familial-cerebral-cavernous-malformations
#8
Qi Wang, Lingchao Meng, Zhaoxia Wang
No abstract text is available yet for this article.
July 15, 2019: JAMA Neurology
https://read.qxmd.com/read/31302677/association-of-lifespan-cognitive-reserve-indicator-with-dementia-risk-in-the-presence-of-brain-pathologies
#9
Hui Xu, Rongrong Yang, Xiuying Qi, Christina Dintica, Ruixue Song, David A Bennett, Weili Xu
Importance: Evidence on the association of lifespan cognitive reserve (CR) with dementia is limited, and the strength of this association in the presence of brain pathologies is unknown. Objective: To examine the association of lifespan CR with dementia risk, taking brain pathologies into account. Design, Setting, and Participants: This study used data from 2022 participants in the Rush Memory and Aging Project, an ongoing community-based cohort study with annual follow-up from 1997 to 2018 (mean follow-up, 6 years; maximum follow-up, 20 years)...
July 14, 2019: JAMA Neurology
https://read.qxmd.com/read/31282955/association-between-caregiver-depression-and-emergency-department-use-among-patients-with-dementia
#10
Elan L Guterman, I Elaine Allen, S Andrew Josephson, Jennifer J Merrilees, Sarah Dulaney, Winston Chiong, Kirby Lee, Stephen J Bonasera, Bruce L Miller, Katherine L Possin
Importance: Current attempts to gauge the acute care needs of patients with dementia have not effectively addressed the role of caregivers, despite their extensive involvement in decisions about acute care management. Objective: To determine whether caregiver depression is associated with increased use of the emergency department (ED) among patients with dementia. Design, Setting, and Participants: This longitudinal cohort study used data from the Care Ecosystem study, a randomized clinical trial examining telephone-based supportive care for patients with dementia and their caregivers...
July 8, 2019: JAMA Neurology
https://read.qxmd.com/read/31282954/safety-and-efficacy-of-edonerpic-maleate-for-patients-with-mild-to-moderate-alzheimer-disease-a-phase-2-randomized-clinical-trial
#11
Lon S Schneider, Ronald G Thomas, Suzanne Hendrix, Robert A Rissman, James B Brewer, David P Salmon, Tilman Oltersdorf, Tomohiro Okuda, Howard H Feldman
Importance: Edonerpic maleate (T-817MA) protects against Aβ40-induced neurotoxic effects and memory deficits, promotes neurite outgrowth, and preserves hippocampal synapses and spatial memory in tau transgenic mice. These effects may be mediated via sigma-1 receptor activation, delivery of synaptic AMPA receptors, or modulation of microglial function and may benefit patients with Alzheimer disease. Objective: To assess the efficacy, safety, and tolerability of edonerpic for patients with mild to moderate Alzheimer disease...
July 8, 2019: JAMA Neurology
https://read.qxmd.com/read/31282952/why-do-you-want-to-be-a-physician
#12
Adam S Cifu
No abstract text is available yet for this article.
July 8, 2019: JAMA Neurology
https://read.qxmd.com/read/31282950/association-between-idiopathic-intracranial-hypertension-and-risk-of-cardiovascular-diseases-in-women-in-the-united-kingdom
#13
Nicola J Adderley, Anuradhaa Subramanian, Krishnarajah Nirantharakumar, Andreas Yiangou, Krishna M Gokhale, Susan P Mollan, Alexandra J Sinclair
Importance: Cardiovascular disease (CVD) risk has not been previously evaluated in a large matched cohort study in idiopathic intracranial hypertension (IIH). Objectives: To estimate the risk of composite cardiovascular events, heart failure, ischemic heart disease, stroke/transient ischemic attack (TIA), type 2 diabetes, and hypertension in women with idiopathic intracranial hypertension and compare it with the risk in women, matched on body mass index (BMI) and age, without the condition; and to evaluate the prevalence and incidence of IIH...
July 8, 2019: JAMA Neurology
https://read.qxmd.com/read/31260031/errors-in-table-2-and-table-3
#14
(no author information available yet)
No abstract text is available yet for this article.
July 1, 2019: JAMA Neurology
https://read.qxmd.com/read/31260028/effect-of-stroke-education-pamphlets-vs-a-12-minute-culturally-tailored-stroke-film-on-stroke-preparedness-among-black-and-hispanic-churchgoers-a-cluster-randomized-clinical-trial
#15
Olajide Williams, Jeanne Teresi, Joseph P Eimicke, Amparo Abel-Bey, Madeleine Hassankhani, Lenfis Valdez, Luisa Gomez Chan, Jian Kong, Mildred Ramirez, Joseph Ravenell, Gbenga Ogedegbe, James M Noble
Importance: Black individuals and Hispanic individuals are less likely to recognize stroke and call 911 (stroke preparedness), contributing to racial/ethnic disparities in intravenous tissue plasminogen activator use. Objective: To evaluate the effect of culturally tailored 12-minute stroke films on stroke preparedness vs the usual care practice of distributing stroke education pamphlets. Design, Setting, and Participants: Cluster randomized clinical trial between July 26, 2013, and August 16, 2018, with randomization of 13 black and Hispanic churches located in urban neighborhoods to intervention or usual care...
July 1, 2019: JAMA Neurology
https://read.qxmd.com/read/31260004/progressive-cortical-thinning-in-patients-with-focal-epilepsy
#16
Marian Galovic, Victor Q H van Dooren, Tjardo Postma, Sjoerd B Vos, Lorenzo Caciagli, Giuseppe Borzì, Juana C Rosillo, Khue Anh Vuong, Jane de Tisi, Parashkev Nachev, John S Duncan, Matthias J Koepp
Importance: It is controversial whether epilepsy is a static or progressive disease. Evidence of progressive gray matter loss in epilepsy would support early diagnosis, rapid treatment, and early referral for surgical interventions. Objective: To demonstrate progressive cortical thinning in patients with focal epilepsy distinct from cortical thinning associated with normal aging. Design, Setting, and Participants: A case-control neuroimaging study was conducted from August 3, 2004, to January 26, 2016, among 190 patients with focal epilepsy at a tertiary epilepsy referral center (epilepsy data) and 3 independent comparison cohorts matched for age and sex (healthy volunteer data; n = 141)...
July 1, 2019: JAMA Neurology
https://read.qxmd.com/read/31260003/comparison-of-attention-for-neurological-research-on-social-media-vs-academia-an-altmetric-score-analysis
#17
Vineet Punia, Vikram Aggarwal, Ryan Honomichl, Appaji Rayi
No abstract text is available yet for this article.
July 1, 2019: JAMA Neurology
https://read.qxmd.com/read/31260001/dancing-dorsal-quadrilaterals-organic-or-functional-reply
#18
Karlo J Lizarraga, Philip D Thompson, Anthony E Lang
No abstract text is available yet for this article.
July 1, 2019: JAMA Neurology
https://read.qxmd.com/read/31259998/dancing-dorsal-quadrilaterals-organic-or-functional
#19
Anjali Chouksey, Sanjay Pandey, Mark Hallett
No abstract text is available yet for this article.
July 1, 2019: JAMA Neurology
https://read.qxmd.com/read/31259997/the-dilemma-of-diagnosing-idiopathic-intracranial-hypertension-without-papilledema-in-patients-with-chronic-migraine
#20
Sweta Sengupta, Christopher Eckstein, Timothy Collins
No abstract text is available yet for this article.
July 1, 2019: JAMA Neurology
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