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Träfflista för sökning "WFRF:(Minthon L) ;pers:(Nobili F)"

Sökning: WFRF:(Minthon L) > Nobili F

  • Resultat 1-5 av 5
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1.
  • Norberg, Joakim, et al. (författare)
  • Regional Differences in Effects of APOE epsilon 4 on Cognitive Impairment in Non-Demented Subjects
  • 2011
  • Ingår i: Dementia and Geriatric Cognitive Disorders. - : S. Karger AG. - 1420-8008 .- 1421-9824. ; 32:2, s. 135-142
  • Tidskriftsartikel (refereegranskat)abstract
    • Background: The APOE epsilon 4 allele is a risk factor for Alzheimer's disease (AD). APOE epsilon 4 is common in non-demented subjects with cognitive impairment. In both healthy people and people with AD, its prevalence has a north-south gradient across Europe. In the present study, we investigated whether the relation between the APOE epsilon 4 allele and cognitive impairment varied across Northern, Middle and Southern Europe. We also investigated whether a north-south gradient existed in subjects with subjective cognitive impairment (SCI), amnestic mild cognitive impairment (MCI) and non-amnestic MCI. Methods: Data from 16 centers across Europe were analyzed. Results: A north-south gradient in APOE epsilon 4 prevalence existed in the total sample (62.7% for APOE epsilon 4 carriers in the northern region, 42.1% in the middle region, and 31.5% in the southern region) and in subjects with SCI and amnestic MCI separately. Only in Middle Europe was the APOE epsilon 4 allele significantly associated with poor performance on tests of delayed recall and learning, as well as with the amnestic subtype of MCI. Conclusion: The APOE epsilon 4 allele frequencies in subjects with SCI and amnestic MCI have a north-south gradient. The relation between the APOE epsilon 4 allele and cognition is region dependent.
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2.
  • van de Pol, L. A., et al. (författare)
  • White matter hyperintensities and medial temporal lobe atrophy in clinical subtypes of mild cognitive impairment: the DESCRIPA study
  • 2009
  • Ingår i: Journal of Neurology, Neurosurgery and Psychiatry. - : BMJ. - 1468-330X .- 0022-3050. ; 80:10, s. 1069-1074
  • Tidskriftsartikel (refereegranskat)abstract
    • Background: Clinical subtypes of mild cognitive impairment (MCI) may represent different underlying aetiologies. Methods: This European, multicentre, memory clinic based study (DESCRIPA) of non-demented subjects investigated whether MCI subtypes have different brain correlates on MRI and whether the relation between subtypes and brain pathology is modified by age. Using visual rating scales, medial temporal lobe atrophy (MTA) (0-4) and white matter hyperintensities (WMH) (0-30) were assessed. Results: Severity of MTA differed between MCI subtypes (p < 0.001), increasing from a mean of 0.8 (SD 0.7) in subjective complaints (n = 77) to 1.3 (0.8) in non-amnestic MCI (n = 93), and from 1.4 (0.9) in single domain amnestic MCI (n = 70) to 1.7 (0.9) in multiple domain amnestic MCI (n = 89). The association between MCI subtype and MTA was modified by age and mainly present in subjects >70 years of age. Severity of WMH did not differ between MCI subtypes (p = 0.21). However, the combination of MTA and WMH differed between MCI subtypes (p = 0.02) Conclusion: We conclude that MCI subtypes may have different brain substrates, especially in older subjects. Isolated MTA was mainly associated with amnestic MCI subtypes, suggesting AD as the underlying cause. In non-amnestic MCI, the relatively higher prevalence of MTA in combination with WMH may suggest a different pathophysiological origin.
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3.
  • Norberg, J, et al. (författare)
  • Regional differences in effects of APOE ε4 on cognitive impairment in non-demented subjects
  • 2011
  • Ingår i: Dementia and geriatric cognitive disorders. - : S. Karger AG. - 1421-9824 .- 1420-8008. ; 32:2, s. 135-142
  • Tidskriftsartikel (refereegranskat)abstract
    • <i>Background:</i> The <i>APOE</i> ε4 allele is a risk factor for Alzheimer’s disease (AD). <i>APOE</i> ε4 is common in non-demented subjects with cognitive impairment. In both healthy people and people with AD, its prevalence has a north-south gradient across Europe. In the present study, we investigated whether the relation between the <i>APOE</i> ε4 allele and cognitive impairment varied across Northern, Middle and Southern Europe. We also investigated whether a north-south gradient existed in subjects with subjective cognitive impairment (SCI), amnestic mild cognitive impairment (MCI) and non-amnestic MCI. <i>Methods:</i> Data from 16 centers across Europe were analyzed. <i>Results:</i> A north-south gradient in <i>APOE</i> ε4 prevalence existed in the total sample (62.7% for <i>APOE</i> ε4 carriers in the northern region, 42.1% in the middle region, and 31.5% in the southern region) and in subjects with SCI and amnestic MCI separately. Only in Middle Europe was the <i>APOE</i> ε4 allele significantly associated with poor performance on tests of delayed recall and learning, as well as with the amnestic subtype of MCI. <i>Conclusion:</i> The <i>APOE</i> ε4 allele frequencies in subjects with SCI and amnestic MCI have a north-south gradient. The relation between the <i>APOE</i> ε4 allele and cognition is region dependent.
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4.
  • Visser, P. J., et al. (författare)
  • Development of screening guidelines and clinical criteria for predementia Alzheimer's disease
  • 2008
  • Ingår i: Neuroepidemiology. - : S. Karger AG. - 1423-0208 .- 0251-5350. ; 30:4, s. 254-265
  • Tidskriftsartikel (refereegranskat)abstract
    • Background: There is an urgent need to identify subjects with Alzheimer's disease (AD) in the predementia phase, but validated diagnostic approaches are currently lacking. In this paper, we present the background, design and methods of a study, which aims to develop clinical criteria for predementia AD. We also present baseline characteristics of the subjects included. The study was part of the multicentre DESCRIPA project, which is being conducted within the network of the European Alzheimer's Disease Consortium. Methods: Clinical criteria will be based on a prospective cohort study of non-demented subjects older than 55 years and referred to a memory clinic. At baseline, a number of markers and risk factors for AD were collected, including demographic variables, measures of performance in activities of daily living, cognitive, neuroimaging and genetic markers, and serum and cerebrospinal fluid markers. Subjects will be reassessed annually for 2 - 3 years, and we will evaluate which combination of variables best predicts AD-type dementia at follow-up. Results: Between 2003 and 2005, 881 subjects were included from 20 memory clinics. Subjects were on average 70.3 years old, and had 10.4 years of education. The average score on the Mini-Mental State Examination was 27.4.
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5.
  • Vos, S. J. B., et al. (författare)
  • Prediction of Alzheimer disease in subjects with amnestic and nonamnestic MCI
  • 2013
  • Ingår i: Neurology. - 0028-3878 .- 1526-632X. ; 80:12, s. 1124-1132
  • 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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  • Resultat 1-5 av 5

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