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- Clerx, Lies, et al.
(författare)
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Measurements of medial temporal lobe atrophy for prediction of Alzheimer's disease in subjects with mild cognitive impairment
- 2013
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Ingår i: Neurobiology of Aging. - : Elsevier BV. - 1558-1497 .- 0197-4580. ; 34:8, s. 2003-2013
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Tidskriftsartikel (refereegranskat)abstract
- Our aim was to compare the predictive accuracy of 4 different medial temporal lobe measurements for Alzheimer's disease (AD) in subjects with mild cognitive impairment (MCI). Manual hippocampal measurement, automated atlas-based hippocampal measurement, a visual rating scale (MTA-score), and lateral ventricle measurement were compared. Predictive accuracy for AD 2 years after baseline was assessed by receiver operating characteristics analyses with area under the curve as outcome. Annual cognitive decline was assessed by slope analyses up to 5 years after baseline. Correlations with biomarkers in cerebrospinal fluid (CSF) were investigated. Subjects with MCI were selected from the Development of Screening Guidelines and Clinical Criteria for Predementia AD (DESCRIPA) multicenter study (n = 156) and the single-center VU medical center (n = 172). At follow-up, area under the curve was highest for automated atlas-based hippocampal measurement (0.71) and manual hippocampal measurement (0.71), and lower for MTA-score (0.65) and lateral ventricle (0.60). Slope analysis yielded similar results. Hippocampal measurements correlated with CSF total tau and phosphorylated tau, not with beta-amyloid 1-42. MTA-score and lateral ventricle volume correlated with CSF beta-amyloid 1-42. We can conclude that volumetric hippocampal measurements are the best predictors of AD conversion in subjects with MCI. (c) 2013 Elsevier Inc. All rights reserved.
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- Neely, G Gregory, et al.
(författare)
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A Genome-wide Drosophila Screen for Heat Nociception Identifies alpha 2 delta 3 as an Evolutionarily Conserved Pain Gene
- 2010
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Ingår i: Cell. - : Elsevier Science B.V., Amsterdam.. - 0092-8674 .- 1097-4172. ; 143:4, s. 628-638
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Tidskriftsartikel (refereegranskat)abstract
- Worldwide, acute, and chronic pain affects 20% of the adult population and represents an enormous financial and emotional burden. Using genome-wide neuronal-specific RNAi knockdown in Drosophila, we report a global screen for an innate behavior and identify hundreds of genes implicated in heat nociception, including the alpha 2 delta family calcium channel subunit straightjacket (stj). Mice mutant for the stj ortholog CACNA2D3 (alpha 2 delta 3) also exhibit impaired behavioral heat pain sensitivity. In addition, in humans, alpha 2 delta 3 SNP variants associate with reduced sensitivity to acute noxious heat and chronic back pain. Functional imaging in alpha 2 delta 3 mutant mice revealed impaired transmission of thermal pain-evoked signals from the thalamus to higher-order pain centers. Intriguingly, in alpha 2 delta 3 mutant mice, thermal pain and tactile stimulation triggered strong cross-activation, or synesthesia, of brain regions involved in vision, olfaction, and hearing.
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- van Rossum, Ineke A, et al.
(författare)
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Injury markers predict time to dementia in subjects with MCI and amyloid pathology.
- 2012
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Ingår i: Neurology. - 1526-632X. ; 79:17, s. 1809-16
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Tidskriftsartikel (refereegranskat)abstract
- Alzheimer disease (AD) can now be diagnosed in subjects with mild cognitive impairment (MCI) using biomarkers. However, little is known about the rate of decline in those subjects. In this cohort study, we aimed to assess the conversion rate to dementia and identify prognostic markers in subjects with MCI and evidence of amyloid pathology.
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- Vos, S. J. B., et al.
(författare)
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Prediction of Alzheimer disease in subjects with amnestic and nonamnestic MCI
- 2013
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Ingår i: Neurology. - 0028-3878 .- 1526-632X. ; 80:12, s. 1124-1132
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Tidskriftsartikel (refereegranskat)abstract
- Objective: To compare the predictive accuracy of beta-amyloid (A beta)1-42 and total tau in CSF, Methods: We selected 399 subjects with aMCI and 226 subjects with naMCI from a multicenter Results: At least 1 follow-up was available for 538 subjects (86%). One hundred thirty-two subjects with Conclusions: AD biomarkers are useful to predict AD-type dementia in subjects with aMCI and naMCI.
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