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Träfflista för sökning "AMNE:(MEDICAL AND HEALTH SCIENCES Clinical Medicine Geriatrics) srt2:(2005-2009)"

Sökning: AMNE:(MEDICAL AND HEALTH SCIENCES Clinical Medicine Geriatrics) > (2005-2009)

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21.
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22.
  • Englund, Hillevi, et al. (författare)
  • Increase in beta-amyloid levels in cerebrospinal fluid of children with down syndrome
  • 2007
  • Ingår i: Dementia and Geriatric Cognitive Disorders. - : S. Karger AG. - 1420-8008 .- 1421-9824. ; 24:5, s. 369-374
  • Tidskriftsartikel (refereegranskat)abstract
    • <i>Background:</i> Individuals with Down syndrome (DS) invariably develop Alzheimer’s disease (AD) during their life span. It is therefore of importance to study young DS patients when trying to elucidate early events in AD pathogenesis. <i>Aim:</i> To investigate how levels of different amyloid-β (Aβ) peptides, as well as tau and phosphorylated tau, in cerebrospinal fluid (CSF) from children with DS change over time. The first CSF sample was taken at 8 months and the following two samples at 20–40 and 54 months of age. <i>Results:</i> Individual levels of the Aβ peptides, as well as total Aβ levels in CSF increased over time when measured with Western blot. Tau in CSF decreased whereas there was no change in levels of phosphorylated tau over time. <i>Conclusion:</i> The increasing levels of Aβ in CSF during early childhood of DS patients observed in this study are probably due to the trisomy of the Aβ precursor APP, which leads to an overproduction of Aβ. Despite the increased CSF concentrations of Aβ, there were no signs of an AD-indicating tau pattern in CSF, since the levels of total tau decreased and phosphorylated tau remained unchanged. This observation further strengthens the theory of Aβ pathology preceding tau pathology in AD.
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23.
  • Freund-Levi, Yvonne, 1956-, et al. (författare)
  • Effects of omega-3 fatty acids on inflammatory markers in cerebrospinal fluid and plasma in Alzheimer's disease : the OmegAD study
  • 2009
  • Ingår i: Dementia and Geriatric Cognitive Disorders. - : S. Karger. - 1420-8008 .- 1421-9824. ; 27:5, s. 481-490
  • Tidskriftsartikel (refereegranskat)abstract
    • BACKGROUND: omega-3 fatty acids (omega-3 FAs) found in dietary fish or fish oils are anti-inflammatory agents that may influence Alzheimer's disease (AD).OBJECTIVE: To study the effects of dietary omega-3 FA supplementation on inflammatory markers in cerebrospinal fluid (CSF) and plasma from patients with mild to moderate AD.METHODS: Thirty-five patients (70.3 +/- 8.2 years) were randomized to a daily intake of 2.3 g omega-3 FAs or placebo for 6 months. The inflammatory markers interleukin (IL)-6, tumour necrosis factor-alpha and soluble interleukin-1 receptor type II (sIL-1RII) were analysed in CSF and plasma at baseline and at 6 months. The AD markers tau-protein, hyperphosphorylated tau-protein and beta-amyloid (Abeta(1-42)) were assessed in CSF. High-sensitivity C-reactive protein was assessed in plasma. A possible relation to the APOE genotype was investigated.RESULTS: There was no significant treatment effect of omega-3 FAs on inflammatory and AD biomarkers in CSF or on inflammatory markers in plasma, nor was there any relation with APOE. A significant correlation was observed at baseline between sIL-1RII and Abeta(1-42) levels in CSF.CONCLUSIONS: Treatment of AD patients with omega-3 FAs for 6 months did not influence inflammatory or biomarkers in CSF or plasma. The correlation between sIL-1RII and Abeta(1-42) may reflect the reciprocal interactions between IL-1 and Abeta peptides.
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24.
  • Lind, Karin, 1952, et al. (författare)
  • Increased saliva cortisol awakening response in patients with mild cognitive impairment
  • 2007
  • Ingår i: Dementia and Geriatric Cognitive Disorders. - : S. Karger AG. - 1420-8008 .- 1421-9824. ; 24:5, s. 389-395
  • Tidskriftsartikel (refereegranskat)abstract
    • <i>Background:</i> It is unknown whether HPA-axis dysfunction is present in patients with mild cognitive impairment (MCI). The aim of the present study was to investigate whether cortisol levels are elevated among patients with MCI and/or whether the individuals have adequate feedback control of their HPA axis. <i>Material and Methods:</i> 27 patients with MCI and 15 healthy controls were included in the study. Saliva samplings were performed 5 times a day before intake of 0.5 mg dexamethasone, and 5 times a day after intake of dexamethasone, respectively. <i>Results:</i> Significantly higher cortisol levels were found 15 min after awakening among patients with MCI in comparison with the controls, both before and after dexamethasone administration (p < 0.05). Also, the ratio between cortisol at awakening time and 15 min after awakening was lower in the patient group after dexamethasone administration (p < 0.05). There were no significant differences in basal cortisol levels before or after dexamethasone between groups. <i>Conclusion:</i> The results indicate that there is an HPA-axis disturbance, with normal basal cortisol levels and increased awakening response among patients with MCI. The dissociation between basal values and the awakening response may be of pathophysiological importance for the cognitive impairment.
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25.
  • Lindén, Thomas, 1962 (författare)
  • Demens efter stroke.
  • 2007
  • Ingår i: E-publikation Vårdalinstitutets hemsida "Tematiska rum" 2007.
  • Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)
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26.
  • Nägga, Katarina, 1962-, et al. (författare)
  • Evaluation of factors of importance for clinical dementia diagnosis
  • 2005
  • Ingår i: Dementia and Geriatric Cognitive Disorders. - : S. Karger AG. - 1420-8008 .- 1421-9824. ; 19:5-6, s. 289-298
  • Tidskriftsartikel (refereegranskat)abstract
    • Diagnosing clinical dementia is based on an assessment of different variables, such as the patient’s medical history, known risk factors, and biochemical features. Partial least squares discriminant analysis was used to evaluate variables of importance for diagnosing dementia in a clinical dementia population. Polymorphism for genotypes of glutathione S-transferase (GST) and sulfotransferase 1A1, hypothetically of importance in dementia disorders, was also included in the analysis. The study population consisted of 73 patients with Alzheimer’s disease (AD), 14 with mixed dementia, 75 patients with vascular dementia, and 28 control cases. We found that several of the variables, such as the presence of ApoE4 allele, high cerebrospinal fluid levels of total tau protein, low levels of β-amyloid<sub>(1–42)</sub>, and a low score on the Mini-Mental State Examination, facilitated a discrimination between the diagnoses compared with the controls. The different diagnoses overlapped. There were indications that genotypes of GSTs contributed to a subgrouping within AD.
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27.
  • Appelros, Peter, et al. (författare)
  • Living setting and utilisation of ADL assistance one year after a stroke with special reference to gender differences
  • 2006
  • Ingår i: Disability and Rehabilitation. - : Informa UK Limited. - 0963-8288 .- 1464-5165. ; 15:28(1), s. 43-49
  • Tidskriftsartikel (refereegranskat)abstract
    • PURPOSE: To examine living setting and need for ADL assistance before and one year after a first-ever stroke with special focus on gender differences. METHODS: One-year survivors from a population-based stroke study (n = 377) were studied with regard to place of living, need for ADL assistance and who provided the help. Stroke severity, cognitive impairment, post-stroke depression as well as risk factors were evaluated. RESULTS: Before the stroke 48 patients (13%) lived in special housing (service flats or nursing homes), and one year after the stroke, 50 of the survivors (20%) lived in such accommodations. Before the stroke, 80 (21%) of the patients needed help with their personal ADL, while 90 (36%) needed help after one year. The increased need was fulfilled by relatives. Female spouses more often helped their male counterparts, and they tended to accept a heavier burden. Age, living alone, stroke severity, cognitive impairment, pre-stroke ADL dependency and depression were predictors for special housing. CONCLUSIONS: In a time when more and more stroke survivors are cared for at home, it is important to pay attention to the situation of the caregivers. Female caregivers seem to be in an especially exposed position by accepting a heavier burden.
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28.
  • de Frias, Cindy M., et al. (författare)
  • Cholesterol and triglycerides moderate the effect of apolipoprotein E on memory functioning in older adults.
  • 2007
  • Ingår i: Journal of Gerontology: Psychological Sciences. - Washington : The gerontological society of America. - 1079-5014 .- 1758-5368. ; 62B:2, s. P112-P118
  • Tidskriftsartikel (refereegranskat)abstract
    • We used data from the Betula Study to examine associations between total cholesterol, triglycerides, and apolipoprotein E on 10-year changes in cognitive performance. Tests assessing episodic memory (recall and recognition), semantic memory (knowledge and fluency), and visuospatial ability (block design) were administered to 524 nondemented adults (initial age of 55-80 years); multilevel modeling was applied to the data. Higher triglyceride levels were associated with a decline in verbal knowledge. Lipid levels moderated the influence of apolipoprotein E on episodic memory, such that among epsilon 4 allele carriers, decline in recognition was noted for individuals with higher cholesterol levels. Cholesterol and triglyceride levels are pharmacologically modifiable risk factors that account for variation In normal cognitive aging.
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29.
  • Reynolds, Chandra A, et al. (författare)
  • A survey of ABCA1 sequence variation confirms association with dementia.
  • 2009
  • Ingår i: Human mutation. - : Hindawi Limited. - 1098-1004 .- 1059-7794. ; 30:9, s. 1348-54
  • Tidskriftsartikel (refereegranskat)abstract
    • We and others have conducted targeted genetic association analyses of ABCA1 in relation to Alzheimer disease risk with a resultant mixture of both support and refutation, but all previous studies have been based upon only a few markers. Here, a detailed survey of genetic variation in the ABCA1 region has been performed in a total of 1,567 Swedish dementia cases (including 1,275 with Alzheimer disease) and 2,203 controls, providing evidence of association with maximum significance at marker rs2230805 (odds ratio [OR]=1.39; 95% confidence interval [CI] 1.23-1.57, p=7.7x10(-8)). Haplotype-based tests confirmed association of this genomic region after excluding rs2230805, and imputation did not reveal additional markers with greater support. Significantly associating markers reside in two distinct linkage disequilibrium blocks with maxima near the promoter and in the terminal exon of a truncated ABCA1 splice form. The putative risk allele of rs2230805 was also found to be associated with reduced cerebrospinal fluid levels of beta-amyloid. The strongest evidence of association was obtained when all forms of dementia were considered together, but effect sizes were similar when only confirmed Alzheimer disease cases were assessed. Results further implicate ABCA1 in dementia, reinforcing the putative involvement of lipid transport in neurodegenerative disease.
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30.
  • Cederfeldt, Marie, 1957, et al. (författare)
  • Influence of cognition on personal activities of daily living (P-ADL) in the acute phase: the Gothenburg Cognitive Stroke Study in Elderly.
  • 2009
  • Ingår i: Archives of gerontology and geriatrics. - : Elsevier BV. - 1872-6976 .- 0167-4943. ; 49:1, s. 118-22
  • Tidskriftsartikel (refereegranskat)abstract
    • This study examines how prestroke dementia and cognitive dysfunction after stroke influence the personal activities of daily living (P-ADL) in elderly patients in the acute phase after stroke. Elderly stroke patients (n=60) referred to geriatric rehabilitation were included. Assessments were carried out at admission and evaluated at discharge from the geriatric ward. The median age of the group was 77 years. Astrand's questionnaire was used to interview a close relative about the patient's prestroke cognitive status. P-ADL was assessed with the Barthel Index (BI). The Mini Mental State Examination (MMSE) and a neuropsychological test battery were used to measure cognitive functions. Analyses were made using non-parametrical methods. In the acute phase after stroke, neither the presence of prestroke dementia nor the cognitive status after stroke onset among these elderly patients influenced P-ADL at admission or at discharge. Prestroke dementia and cognitive dysfunction's were found to be common after stroke onset, however this did not have any impact on dependence in P-ADL in these elderly patients at admission or at discharge.
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