Alzheimer's: CMS Proposed Decision Memo for Beta Amyloid Positron Emission Tomography in Dementia and Neurodegenerative Disease

Proposed Decision Memo for Beta Amyloid Positron Emission Tomography in Dementia and Neurodegenerative DiseaseCMS.gov03 July 2013 Read the memo
Source: BrainBlog - Category: Neurologists Source Type: blogs

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Associations Between APOE Variants, Tau and α-Synuclein. Adv Exp Med Biol. 2019;1184:177-186 Authors: Rodriguez-Vieitez E, Nielsen HM Abstract Neurodegenerative diseases are characterized by the aggregation and deposition of misfolded proteins in the brain, most prominently amyloid-β (Aβ), tau and α-synuclein (α-syn), and are thus referred to as proteinopathies. While tau is a hallmark of Alzheimer's disease (AD) and other non-AD tauopathies, and α-synuclein is the pathological feature of the spectrum of synucleinopathies including Parkinson's disease (PD), Parkinson's...
Source: Advances in Experimental Medicine and Biology - Category: Research Tags: Adv Exp Med Biol Source Type: research
by Jee Wook Kim, Min Soo Byun, Dahyun Yi, Jun Ho Lee, Kang Ko, So Yeon Jeon, Bo Kyung Sohn, Jun-Young Lee, Yu Kyeong Kim, Seong A Shin, Chul-Ho Sohn, Dong Young Lee, for the KBASE Research Group BackgroundAn emerging body of literature has indicated that moderate alcohol intake may be protective against Alzheimer disease (AD) dementia. However, little information is available regarding whether moderate alcohol intake is related to reductions in amyloid-beta (A β) deposition, or is protective via amyloid-independent mechanisms in the living human brain. Here we examined the associations of moderate alcohol intake with ...
Source: PLoS Medicine - Category: Internal Medicine Authors: Source Type: research
This cross-sectional, longitudinal study of amyloid- β–positive individuals with mild cognitive impairment or Alzheimer disease dementia examines the factors associated with interindividual differences in brain and cognitive resilience to tau positron emission tomography load and to changes in global cognition over time.
Source: JAMA Neurology - Category: Neurology Source Type: research
ConclusionsCustomized FreeSurfer-based brain atlas for DARTEL tool is easy to create and useful for the analysis of PET and MR images with high adaptability and reliability for broad research purposes.
Source: Annals of Nuclear Medicine - Category: Nuclear Medicine Source Type: research
CONCLUSIONS: Brain 18F-FDG PET had an elevated performance in the early diagnosis of PPA variants and in the advanced PPA AD/FTD classification. QL clarified the development of AD or FTD in advanced PPA cases and supported the differential diagnosis of a PPA variant in a few early cases. QN 18F-FDG PET evaluation better contributed to the early diagnosis of an unclear metabolic pattern. To correctly identify all cases, patients with diffuse cortical hypometabolism were also included. Larger series are necessary to confirm these data. PMID: 32062656 [PubMed - as supplied by publisher]
Source: Dementia and Geriatric Cognitive Disorders - Category: Psychiatry Tags: Dement Geriatr Cogn Disord Source Type: research
AbstractAccurate, automated white matter hyperintensity (WMH) segmentations are needed for large-scale studies to understand contributions of WMH to neurological diseases. We evaluated Bayesian Model Selection (BaMoS), a hierarchical fully-unsupervised model selection framework for WMH segmentation. We compared BaMoS segmentations to semi-automated segmentations, and assessed whether they predicted longitudinal cognitive change in control, early Mild Cognitive Impairment (EMCI), late Mild Cognitive Impairment (LMCI), subjective/significant memory concern (SMC) and Alzheimer ’s (AD) participants. Data were downloaded ...
Source: Neuroinformatics - Category: Neuroscience Source Type: research
(Wiley) New findings published in the Scandinavian Journal of Medicine&Science in Sports reveal how physically active older adults benefit from reduced risks of early death, breast and prostate cancer, fractures, recurrent falls, functional limitations, cognitive decline, dementia, Alzheimer's disease, and depression.
Source: EurekAlert! - Social and Behavioral Science - Category: International Medicine & Public Health Source Type: news
ConclusionThe presence of microbleeds in DLB is associated with higher blood pressure, but not with other measures of vascular disease or amyloid deposition. The relationship between microbleeds and clinical presentation remains unclear.
Source: Journal of Neurology - Category: Neurology Source Type: research
In Reply The Letter to the Editor by Montero-Odasso and colleagues addresses noncognitive manifestations of Alzheimer disease (AD). Their letter discusses a recent article from the Mayo Clinic. Using positron emission tomography biomarkers of amyloidosis (A) and tauopathy (T), the Mayo study examined the age- and sex-specific prevalence of 3 biologically defined entities: amyloidosis (A+) regardless of tau status, A+T −, and A+T+. We compared the age and sex specific prevalence of these 3 biomarker-defined entities with 3 clinical syndromes commonly associated with AD: clinically defined probable AD using the McKhann...
Source: JAMA Neurology - Category: Neurology Source Type: research
A UCLA-led study has found that levels of six proteins in the blood can be used to gauge a person ’s risk for cerebral small vessel disease, or CSVD, a brain disease that affects an estimated 11 million older adults in the U.S. CSVD can lead to dementia and stroke, but currently it can only be diagnosed with an MRI scan of the brain.“The hope is that this will spawn a novel diagnostic test that clinicians can start to use as a quantitative measure of brain health in people who are at risk of developing cerebral small vessel disease,” said Dr. Jason Hinman, a UCLA assistant professor of neurology and lead ...
Source: UCLA Newsroom: Health Sciences - Category: Universities & Medical Training Source Type: news
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