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Sökning: WFRF:(Basile AM)

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  • Pantoni, Leonardo, et al. (författare)
  • Leukoaraiosis predicts hidden global functioning impairment in nondisabled older people: the LADIS (Leukoaraiosis and Disability in the Elderly) Study.
  • 2006
  • Ingår i: Journal of the American Geriatrics Society. - 0002-8614. ; 54:7, s. 1095-101
  • Tidskriftsartikel (refereegranskat)abstract
    • OBJECTIVES: To determine whether leukoaraiosis severity is independently associated with differences in global functioning in nondisabled elderly patients. DESIGN: Cross-sectional data analysis from an ongoing longitudinal multicenter and multinational study. SETTING: The Leukoaraiosis and Disability Study, a collaboration aimed at assessing leukoaraiosis as an independent predictor of the transition to disability in older people. PARTICIPANTS: Six hundred thirty-nine nondisabled subjects (288 men, 351 women, mean age+/-standard deviation 74.1+/-5.0) with magnetic resonance imaging-detected leukoaraiosis of different severity and presenting with one of the following: mild cognitive or motor disturbances, minor cerebrovascular events, or mood alterations or in whom leukoaraiosis was incidentally identified. MEASUREMENTS: Centralized assessment of leukoaraiosis severity according to the three severity degrees of the Fazekas scale; Disability Assessment for Dementia (DAD) Scale for measurement of global functioning. RESULTS: At baseline, 44% of participants had a mild, 31% a moderate, and 25% a severe degree of leukoaraiosis. A significant trend toward declining performance on the DAD Scale was apparent with increasing leukoaraiosis score severity (total score=98.8, 98.6, 97.5, respectively, in the three leukoaraiosis categories, analysis of variance P=.002). Similar trends were obtained for basic (P=.01) and instrumental (P<.001) function items. The statistical significance of these differences was confirmed in a multiple linear regression analysis correcting for numerous factors known to influence disability in older people. Executive function test performance declined along with increasing leukoaraiosis severity and was significantly related to DAD total score. CONCLUSION: Even in nondisabled elderly patients, levels of functional ability are related to white matter lesion severity. Executive dysfunction may mediate this relationship.
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  • Ryberg, C, et al. (författare)
  • White matter changes contribute to corpus callosum atrophy in the elderly: the LADIS study.
  • 2008
  • Ingår i: AJNR. American journal of neuroradiology. - 1936-959X. ; 29:8, s. 1498-504
  • Tidskriftsartikel (refereegranskat)abstract
    • BACKGROUND AND PURPOSE: The corpus callosum (CC) is the most important structure involved in the transmission of interhemispheric information. The aim of this study was to investigate the potential correlation between regional age-related white matter changes (ARWMC) and atrophy of CC in elderly subjects. MATERIALS AND METHODS: In 578 subjects with ARWMC from the Leukoaraiosis And DISability (LADIS) study, the cross-sectional area of the CC was automatically segmented on the normalized midsagittal MR imaging section and subdivided into 5 regions. The ARWMC volumes were measured quantitatively by using a semiautomated technique and segmented into 6 brain regions. RESULTS: Significant correlation between the area of the rostrum and splenium regions of the CC and the ARWMC load in most brain regions was identified. This correlation persisted after correction for global atrophy. CONCLUSION: Increasing loads of ARWMC volume were significantly correlated with atrophy of the CC and its subregions in nondisabled elderly subjects with leukoaraiosis. However, the pattern of correlation between CC subregions and ARWMC was not specifically related to the topographic location of ARWMC. The results suggest that ARWMC may lead to a gradual loss of CC tissue.
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