Abstract:
BACKGROUND:Among the different quantitative electroencephalographic markers, theta activity is known to reflect neural resources involved in memory processes and directed attention. Previous studies suggested that synchronization likelihood analysis in theta-band frequency might be a sensitive method to identify early alterations of neuronal networks in mild cognitive impairment (MCI). METHODS:We report here a longitudinal study of 24 MCI patients with theta event-related synchronization (ERS) analysis during the n-back working memory task and neuropsychological follow-up after 1 year. Statistical analysis included analysis of variance and logistic regression to assess the relationship between cognitive decline and theta ERS. RESULTS:Upon follow-up, 13 MCI patients showed progressive MCI and 11 remained stable. In both groups, the phasic increase in theta amplitude after stimulus presentation did not depend on working memory load and electrode sites. Progressive MCI cases displayed significantly lower theta ERS power over all electrode sites compared to stable MCI cases. Theta ERS was significantly related to the cognitive outcome explaining 15.5% of its variability. In terms of MCI classification, the best combination of sensitivity and specificity was 0.87 and 0.60, respectively, with an area under the corresponding receiver operating characteristic curve reaching 76%. CONCLUSIONS:The present data indicate that a decrease in the early phasic theta ERS power during working memory activation may predict cognitive decline in MCI. This phenomenon is not related to working memory load but may reflect the presence of early deficits in directed attention-related neural circuits in MCI.
journal_name
Dement Geriatr Cogn Disordjournal_title
Dementia and geriatric cognitive disordersauthors
Missonnier P,Gold G,Herrmann FR,Fazio-Costa L,Michel JP,Deiber MP,Michon A,Giannakopoulos Pdoi
10.1159/000094974subject
Has Abstractpub_date
2006-01-01 00:00:00pages
250-9issue
3eissn
1420-8008issn
1421-9824pii
94974journal_volume
22pub_type
杂志文章abstract:AIMS:We aimed to establish the prevalence of depression among recently admitted long-term care patients and to examine associations with diagnostic initiatives and treatment as recorded in patients' medical records. MATERIALS AND METHODS:Eighty-eight long-term care patients were included. Depression was diagnosed acco...
journal_title:Dementia and geriatric cognitive disorders
pub_type: 杂志文章
doi:10.1159/000355427
更新日期:2014-01-01 00:00:00
abstract:BACKGROUND/AIM:The aim of this study was to elucidate the relationship between Alzheimer's disease (AD) and the serotonin transporter gene (SLC6A4). METHODS:AD subjects (n = 43) and controls (n = 47) were recruited and evaluated. In leukocytes, we evaluated two polymorphisms in SLC6A4, the serotonin transporter length...
journal_title:Dementia and geriatric cognitive disorders
pub_type: 杂志文章,meta分析
doi:10.1159/000447324
更新日期:2016-01-01 00:00:00
abstract::This study examines the associations between education, cerebral perfusion, and cognitive test performance among 132 patients with Alzheimer's disease. The participants had had between 0 and 19 years of formal schooling, and had either mild or moderate dementia according to the Clinical Dementia Rating Scale. Cerebral...
journal_title:Dementia and geriatric cognitive disorders
pub_type: 杂志文章
doi:10.1159/000085068
更新日期:2005-01-01 00:00:00
abstract:BACKGROUND:The Clinical Dementia Rating Scale (CDR) is used to rate dementia severity. Its utility in diagnosing mild cognitive impairment (MCI) and its predictive value remain unknown. AIMS:The aim of this study was to examine the association between CDR scores and expert MCI diagnosis, and to determine whether basel...
journal_title:Dementia and geriatric cognitive disorders
pub_type: 杂志文章
doi:10.1159/000447057
更新日期:2016-01-01 00:00:00
abstract:BACKGROUND:We investigated the relationship between sleep disturbance and cognitive decline or clinical conversion in individuals with normal cognition (CN), as well as those with mild cognitive impairment (MCI) and dementia due to Alzheimer disease (AD-dementia). METHODS:Secondary analysis of 1,629 adults between 48 ...
journal_title:Dementia and geriatric cognitive disorders
pub_type: 杂志文章
doi:10.1159/000488671
更新日期:2018-01-01 00:00:00
abstract:BACKGROUND/AIMS:This study aimed to investigate the possible association of regional cerebral perfusion and sleep loss in Alzheimer's disease (AD). METHODS:55 AD patients were characterized as having (SL) or not having (NSL) nocturnal sleep loss based on standard AD scales assessing sleep over the previous 4 weeks. (9...
journal_title:Dementia and geriatric cognitive disorders
pub_type: 杂志文章
doi:10.1159/000203889
更新日期:2009-01-01 00:00:00
abstract:BACKGROUND/AIM:3-Hydroxy-3-methylglutaryl coenzyme A reductase inhibitors (statins) are thought to reduce the amount of Abeta peptides by reducing cholesterol from blood and/or cerebrospinal fluid. We performed this meta-analysis to evaluate the preventive and treatment effects of statins on dementia and Alzheimer dise...
journal_title:Dementia and geriatric cognitive disorders
pub_type: 杂志文章,meta分析
doi:10.1159/000099037
更新日期:2007-01-01 00:00:00
abstract::The degeneration of dopaminergic cells in dementia with Lewy bodies (DLB) may provide an important source of additional free radical generation. As a result, the oxidative stress status in DLB could be significantly enhanced. Subsequently, the levels of endogenous antioxidants, which are an indirect measure of free ra...
journal_title:Dementia and geriatric cognitive disorders
pub_type: 杂志文章
doi:10.1159/000069993
更新日期:2003-01-01 00:00:00
abstract:BACKGROUND:The impact of occupational exposure to solvents on cognitive ageing remains unclear. We examined whether long-term occupational exposure is associated with poor cognitive performance in late midlife. METHODS:Participants in the GAZEL cohort, set up in 1989, are employees of the French national electricity a...
journal_title:Dementia and geriatric cognitive disorders
pub_type: 杂志文章
doi:10.1159/000315498
更新日期:2010-01-01 00:00:00
abstract:BACKGROUND:The aim of this study was to explore the relationship between cerebrospinal fluid biomarkers and neuropsychiatric symptoms in people with Alzheimer's disease. Psychosis, agitation, apathy and depression were assessed using standardised measures in 32 patients with mild Alzheimer's disease. METHODS:The level...
journal_title:Dementia and geriatric cognitive disorders
pub_type: 杂志文章
doi:10.1159/000137671
更新日期:2008-01-01 00:00:00
abstract::Donepezil HCI is a piperidine-based reversible acetylcholinesterase (AChE) inhibitor, chemically distinct from other cholinesterase (ChE) inhibitors and rationally designed to treat the symptoms of Alzheimer's disease (AD). It is highly selective for AChE in the central nervous system (CNS), with little or no affinity...
journal_title:Dementia and geriatric cognitive disorders
pub_type: 杂志文章,评审
doi:10.1159/000051201
更新日期:1998-01-01 00:00:00
abstract::The identification of the epsilon4 variant of apolipoprotein E as a genetic risk factor for late-onset Alzheimer's disease (AD) suggests that cholesterol may play a direct role in the pathogenesis of the disease. Recent studies have suggested that the ATP-binding cassette (ABC) protein G5 (ABCG5) may be involved in th...
journal_title:Dementia and geriatric cognitive disorders
pub_type: 杂志文章
doi:10.1159/000086473
更新日期:2005-01-01 00:00:00
abstract::Alzheimer's disease (AD) is generally understood as primarily affecting cognition while sparing motor function, at least until the later stages of the disease. Studies reported over the past 10 years, however, have documented a prevalence of falls in AD patients significantly higher than in age-matched normal elders; ...
journal_title:Dementia and geriatric cognitive disorders
pub_type: 杂志文章,评审
doi:10.1159/000105126
更新日期:2007-01-01 00:00:00
abstract:AIMS:To examine the effects of galantamine and risperidone on agitation in patients with dementia. METHODS:A total of 100 patients with dementia and neuropsychiatric symptoms (mean age ± SD: 78.6 ± 7.5 years; 67% female) were included in this 12-week, randomized, parallel-group, controlled, single-center trial. The pa...
journal_title:Dementia and geriatric cognitive disorders
pub_type: 杂志文章,随机对照试验
doi:10.1159/000362204
更新日期:2014-01-01 00:00:00
abstract::This cross-sectional study aimed at determining the clinical and structural brain magnetic resonance imaging correlates of mild cognitive impairment (MCI). The data presented here are from the first wave of the longitudinal Personality and Total Health through Life 60+ project. 2,551 community-dwelling individuals in ...
journal_title:Dementia and geriatric cognitive disorders
pub_type: 杂志文章
doi:10.1159/000089251
更新日期:2006-01-01 00:00:00
abstract::A correlation between a 5-nucleotide deletion polymorphism in the A2M gene and an enhanced risk of developing Alzheimer's disease (AD) was reported. We studied this polymorphism in sporadic AD patients and patients with frontotemporal dementia (FTD) by using an electrophoretical separation of PCR products on a Metapho...
journal_title:Dementia and geriatric cognitive disorders
pub_type: 杂志文章
doi:10.1159/000051274
更新日期:2001-09-01 00:00:00
abstract:OBJECTIVE:To detect the main factors associated with the occurrence of specific geriatric syndromes (namely pressure sores, fecal incontinence, urinary incontinence and falls) in elderly patients during hospitalization. DESIGN:Observational prospective study. SETTING:Eighty-one community and university hospitals thro...
journal_title:Dementia and geriatric cognitive disorders
pub_type: 杂志文章
doi:10.1159/000087440
更新日期:2005-01-01 00:00:00
abstract::Central cholinergic circuits of human brain can be tested non-invasively by coupling electrical peripheral stimulation with transcranial magnetic stimulation (TMS) of the motor cortex. The short-latency afferent inhibition (SAI) is reduced in cholinergic forms of dementia, such as Alzheimer disease (AD) and dementia w...
journal_title:Dementia and geriatric cognitive disorders
pub_type: 杂志文章,评审
doi:10.1159/000330016
更新日期:2011-01-01 00:00:00
abstract:AIM:The aims of the present study were to report on the psychometric properties of the Pain Assessment in Advanced Dementia (PAINAD) scale by comparing it with the gold standard method of self-reporting on a numerical rating scale (NRS), and to provide a categorical version of the PAINAD scale comparable with the verba...
journal_title:Dementia and geriatric cognitive disorders
pub_type: 杂志文章
doi:10.1159/000341582
更新日期:2012-01-01 00:00:00
abstract:BACKGROUND:White matter injury is an important factor for cognitive impairment in memory clinic patients. We determined the added value of diffusion tensor imaging (DTI) of strategic white matter tracts in explaining variance in cognition in memory clinic patients with vascular brain injury. METHODS:We included 159 pa...
journal_title:Dementia and geriatric cognitive disorders
pub_type: 杂志文章
doi:10.1159/000485376
更新日期:2017-01-01 00:00:00
abstract:BACKGROUND/AIMS:The beta amyloid aggregations present in Alzheimer's disease affect neurons through various toxic alterations. The aim of this study was to determine the expression of the vitamin D receptor (VDR), 25-hydroxyvitamin D3 24-hydroxylase (an accelerator of vitamin D catabolism), and the L-type voltage-sensi...
journal_title:Dementia and geriatric cognitive disorders
pub_type: 杂志文章
doi:10.1159/000350319
更新日期:2013-01-01 00:00:00
abstract::To evaluate whether magnetic resonance imaging (MRI) of white matter changes in Alzheimer's disease either under- or overestimates the findings on neuropathology. Postmortem MRI and neuropathological examination were performed on 6 brains from elderly individuals with a postmortem diagnosis of AD. Using a specially de...
journal_title:Dementia and geriatric cognitive disorders
pub_type: 杂志文章
doi:10.1159/000057698
更新日期:2002-01-01 00:00:00
abstract:BACKGROUND:The capacity to mitigate dementia symptomology despite the prevailing brain pathology has been attributed to cognitive reserve. OBJECTIVES:This study aimed to investigate how psychometric performance differs between individuals with a high school versus college education (surrogate measures for medium and h...
journal_title:Dementia and geriatric cognitive disorders
pub_type: 杂志文章
doi:10.1159/000501150
更新日期:2019-01-01 00:00:00
abstract:BACKGROUND/AIMS:Existing cognitive measures for moderate-to-severe dementia have shown floor effects and an inability to assess the remaining cognitive function, especially for profound dementia. METHODS:We constructed the Cognitive Test for Severe Dementia (CTSD), which consists of 13 items covering 7 cognitive domai...
journal_title:Dementia and geriatric cognitive disorders
pub_type: 杂志文章
doi:10.1159/000430089
更新日期:2015-01-01 00:00:00
abstract:BACKGROUND/AIMS:Healthcare systems face an increased prevalence of Alzheimer's disease and increasing costs. The use of molecular biomarkers and imaging could offer an effective solution for these issues. The objective of this study was to assess amyloid imaging regarding clinical utility and impact. METHODS:A literat...
journal_title:Dementia and geriatric cognitive disorders
pub_type: 杂志文章,评审
doi:10.1159/000351679
更新日期:2013-01-01 00:00:00
abstract::Frontotemporal dementia (FTD) is the second most prevalent dementia after Alzheimer's disease (AD). We compared 29 FTD and 90 AD caregivers with respect to burden, health-related quality of life (HQoL) and coping. FTD caregivers were more burdened than AD caregivers, and caregivers of patients who were demented for sh...
journal_title:Dementia and geriatric cognitive disorders
pub_type: 杂志文章
doi:10.1159/000095750
更新日期:2006-01-01 00:00:00
abstract:BACKGROUND/AIM:To investigate the influence of established genetic risk factors for Alzheimer's disease on the speed of disease progression. METHODS:Polymorphisms (in ACE, ApoE, BIN1, CLU, CR1, CST3, EXOC3L2, GWA14q32.13, IL8, LDLR, PICALM, TNK1) of 40 Alzheimer's disease patients from a longitudinal study were analyz...
journal_title:Dementia and geriatric cognitive disorders
pub_type: 杂志文章
doi:10.1159/000336790
更新日期:2012-01-01 00:00:00
abstract:BACKGROUND/AIMS:The relationship between subcortical hyperintensities (SH) on brain MRI and gait parameters in aging and Alzheimer's disease (AD) is unclear. This study compared gait in 42 mild AD patients to 22 normal controls (NC) based on their SH severity and correlated them to SH burden in these groups. METHODS:G...
journal_title:Dementia and geriatric cognitive disorders
pub_type: 杂志文章
doi:10.1159/000245158
更新日期:2009-01-01 00:00:00
abstract:AIMS:To investigate the effects of rivastigmine capsule 3-12 mg/day over 24 weeks on activities of daily living (ADLs) in patients with dementia associated with Parkinson's disease (PDD). METHODS:Post hocanalysis of a prospective, multicenter, randomized, double-blind, placebo-controlled trial in patients with PDD (>o...
journal_title:Dementia and geriatric cognitive disorders
pub_type: 杂志文章,多中心研究,随机对照试验
doi:10.1159/000305100
更新日期:2010-01-01 00:00:00
abstract::The following areas are discussed in this review: atherogenesis; cerebrovascular factors; hypoperfusion; beta-amyloid production; beta-amyloid fibril formation; beta-sheets; metal cations; reactive oxygen species/free radicals; chronic inflammatory factors; endogenous plasma heparin; lipoprotein lipase; polyamines; pr...
journal_title:Dementia and geriatric cognitive disorders
pub_type: 杂志文章,评审
doi:10.1159/000080034
更新日期:2004-01-01 00:00:00