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- Aarsland, D, et al.
(författare)
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[New diagnostic criteria for Alzheimer disease]
- 2011
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Ingår i: Tidsskrift for den Norske laegeforening : tidsskrift for praktisk medicin, ny raekke. - : Norwegian Medical Association. - 0807-7096. ; 131:22, s. 2224-5
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Tidskriftsartikel (refereegranskat)
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- Besga, A., et al.
(författare)
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Differences in brain cholesterol metabolism and insulin in two subgroups of patients with different CSF biomarkers but similar white matter lesions suggest different pathogenic mechanisms
- 2012
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Ingår i: Neuroscience Letters. - : Elsevier BV. - 0304-3940 .- 1872-7972. ; 510:2, s. 121-126
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Tidskriftsartikel (refereegranskat)abstract
- Investigate possible associations of white matter hyperintensities (WMHs) with the metabolism of cholesterol and insulin in two subgroups of patients with memory complaints and different CSF A beta 42 and CSF tau levels. 59 patients from the memory clinic at Karolinska Hospital were included. Degree of WMHs was rated using the ARWMC scale and the following biomarkers were measured in CSF and plasma: insulin, cholesterol, lanosterol, lathosterol, and oxidized cholesterol metabolites. The WMHs in CSF control-like group correlated with increased brain cholesterol synthesis and reduced efflux of oxysterols and insulin in CSF. In the CSF AD-like group, the WMHs correlated with increased peripheral cholesterol metabolism. Despite having similar appearance on FLAIR images, the pathogenic mechanisms of WMHS are likely to be different in the two groups investigated.
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- Håkansson, Krister, 1952-, et al.
(författare)
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Depressive signs in midlife : A risk factor for cognitive impairment in later life?
- 2010
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Ingår i: International Conference on Alzheimer's Disease (ICAD) 2010. - Chicago, USA : Alzheimer's Association.
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Konferensbidrag (refereegranskat)abstract
- Background: Although depression has been associated with dementia, the nature of this relation is still unclear. Establishing causality from previous studies has been complicated by the typical use of a short follow-up and participants aged over 70 already at baseline. The main purpose of this study was to evaluate if depressive signs already in midlife are related to cognitive impairment in later life. Methods: Participants were derived from random, population-based samples previously investigated in 1972, 1977, 1982, or 1987. Their mean age at baseline was 50.4 years (SD 6.0). After an average follow-up of 21 years, 1449 individuals (73%) aged 65 to 79 years were re-examined in 1998. At the re-examination some form of cognitive impairment was diagnosed in 139 of the participants: 82 with mild cognitive impairment and 57 with dementia (48 of these with Alzheimer’s disease). Signs of depression were estimated through responses to three questions concerning the perception of a hopeless future, impossible life goals and loneliness. The relation between depressive signs in midlife and cognitive impairment in later life was analyzed with logistic regression with adjustments for age, gender, apolipoprotein e4 status and a number of midlife health and lifestyle indicators, including blood pressure, cholesterol and marital status. Results: Depressive signs in midlife, as measured in this study, were significantly related to general cognitive impairment in later life, but also separately to both mild cognitive impairment and Alzheimer’s disease. When dichotomized into high versus low levels of depressive signs the odds ratios were 2.19 (1.1 to 4.3) for mild cognitive impairment and 3.81 (1.3 to 11.5) for Alzheimer’s disease. Significant associations were also found between the separate measures of hopelessness and loneliness on the one hand and the separate outcomes of mild cognitive impairment and Alzheimer’s disease on the other. Conclusions: The results support a causal relation between depressive signs relatively early in life and cognitive function in later life. Clinical relevance includes the long-term health implications of depressive signs in midlife also for the risk of dementia.
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