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Journal ArticleDOI

Depressive symptoms increase the risk of progression to dementia in subjects with mild cognitive impairment: systematic review and meta-analysis

TLDR
A meta‐analysis of studies that evaluated the risk of dementia in subjects with MCI and depressive symptoms compared with subjects withMCI and no depressive symptoms concludes that depressive symptoms in older with mild cognitive impairment should be considered as a risk factor for dementia.
Abstract
Objective There is a long-standing debate in the literature whether depressive symptoms increase the risk of dementia in older with mild cognitive impairment (MCI). We aim to conduct a meta-analysis of studies that evaluated the risk of dementia in subjects with MCI and depressive symptoms compared with subjects with MCI and no depressive symptoms. Methods We calculated the relative risk of progression to dementia in subjects with MCI and depressive symptoms compared with subjects with MCI and no depressive symptoms using a generic inverse variance method with random effect models. Results Eighteen studies were included in the meta-analysis, with a sample size of 10,861 MCI subjects. The pooled relative risk of progressing to dementia was 1.28 CI95% [1.09–1.52] (p = 0.003) in the group of MCI subjects with depressive symptoms compared with the MCI subjects with no depressive symptoms. Discussion Our results provide additional evidence that depressive symptoms determine an additive risk effect to the progression to dementia in subjects with MCI. The comorbidity between depression and cognitive impairment can be an intervention target for prevention of dementia in MCI subjects. Copyright © 2015 John Wiley & Sons, Ltd.

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Journal ArticleDOI

Prevalence of Depression in Patients With Mild Cognitive Impairment: A Systematic Review and Meta-analysis.

TL;DR: The method used to diagnose depression did not significantly influence the prevalence estimate, nor did the criteria used for MCI diagnosis or MCI subtype, and a contributor to heterogeneity in the reported literature is the source of the sample, with greater depression burden prevalent in clinic-based samples.
Journal ArticleDOI

Implications of sleep disturbance and inflammation for Alzheimer's disease dementia

TL;DR: A bidirectional relationship between sleep and Alzheimer's disease is supported by advances in understanding of sleep disturbance-induced increases in systemic inflammation, which can be viewed as an early event in the course of Alzheimer’s disease.
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Epilepsy and cognition - A bidirectional relationship?

TL;DR: In conclusion, an epilepsy-centric unidirectional view of the behavioral problems being caused by epilepsy is obsolete and a practical clinical approach is favored according to which the comorbidities of epilepsy must be diagnosed at the onset of the disease, and according to who may require separate treatment approaches.
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Vitamin D and Depression: Cellular and Regulatory Mechanisms

TL;DR: The phenotypic stability hypothesis argues that vitamin D acts by reducing the increased neuronal levels of Ca2+ that are driving depression, which may explain how it acts to reduce the onset of depression.
References
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Journal ArticleDOI

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TL;DR: Moher et al. as mentioned in this paper introduce PRISMA, an update of the QUOROM guidelines for reporting systematic reviews and meta-analyses, which is used in this paper.
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Clinical diagnosis of Alzheimer's disease : report of the NINCDS-ADRDA Work Group under the auspices of Department of Health and Human Services Task Force on Alzheimer's Disease

TL;DR: The criteria proposed are intended to serve as a guide for the diagnosis of probable, possible, and definite Alzheimer's disease; these criteria will be revised as more definitive information becomes available.

The Newcastle-Ottawa Scale (NOS) for Assessing the Quality of Nonrandomised Studies in Meta-Analyses

TL;DR: The Newcastle-Ottawa Scale (NOS) as discussed by the authors was developed to assess the quality of nonrandomised studies with its design, content and ease of use directed to the task of incorporating the quality assessments in the interpretation of meta-analytic results.
Journal ArticleDOI

Mild Cognitive Impairment: Clinical Characterization and Outcome

TL;DR: Patients who meet the criteria for MCI can be differentiated from healthy control subjects and those with very mild AD, and appear to constitute a clinical entity that can be characterized for treatment interventions.
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