scholarly journals Sleep Disturbance and the Risk of Cognitive Decline or Clinical Conversion in the ADNI Cohort

2018 ◽  
Vol 45 (3-4) ◽  
pp. 232-242 ◽  
Author(s):  
Adam P. Mecca ◽  
Hannah R. Michalak ◽  
Julia W. McDonald ◽  
Emily C. Kemp ◽  
Erika A. Pugh ◽  
...  
Keyword(s):  
Cohort Study ◽  
Cognitive Impairment ◽  
Cognitive Decline ◽  
Sleep Disturbance ◽  
Secondary Analysis ◽  
Study Results ◽  
Global Cognition ◽  
The Relationship ◽  
Normal Cognition

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 and 91 years of age with up to 24 months of follow-up from the ADNI (Alzheimer’s Disease Neuroimaging Initiative), a longitudinal cohort study. Results: Sleep disturbance was not associated with decline in memory, executive function, or global cognition. The presence of sleep disturbance did not significantly increase the risk of diagnostic conversion in CN, early MCI, or late MCI participants. Conclusion: This study investigated the effect of sleep disturbance on cognitive decline using several outcomes and does not support the hypothesis that sleep disturbance predicts subsequent cognitive decline.

Levodopa-induced dyskinesia is closely linked to progression of frontal dysfunction in PD

Neurology ◽  
2019 ◽  
Vol 92 (13) ◽  
pp. e1468-e1478 ◽  
Author(s):  
Han Soo Yoo ◽  
Seok Jong Chung ◽  
Yang Hyun Lee ◽  
Hye Sun Lee ◽  
Byoung Seok Ye ◽  
...  
Keyword(s):  
Cognitive Decline ◽  
Retrospective Cohort ◽  
Mixed Model ◽  
Linear Mixed Model ◽  
Executive Dysfunction ◽  
Global Cognitive Function ◽  
Neuropsychological Evaluations ◽  
The Relationship ◽  
Normal Cognition

ObjectiveTo assess the relationship between the development of levodopa-induced dyskinesia (LID) and longitudinal changes in cognition.MethodsIn this retrospective cohort study, we recruited 119 patients with Parkinson disease (PD) who underwent baseline and follow-up neuropsychological evaluations and were treated with levodopa for >5 years. On the basis of LID development, the patients were classified as patients with LID (PD-LID+, n = 38) or without LID (PD-LID−, n = 81) within 5 years of levodopa administration. After adjusting for age, sex, years of education, body mass index, motor severity at baseline, and levodopa increment per year, we compared the rates of cognitive decline using linear mixed model and dementia conversion using survival analysis between the groups.ResultsNeuropsychological performances and the percentage of patients with mild cognitive impairment (MCI) at baseline did not differ between the groups. The PD-LID+ group showed faster declines in frontal executive function (p = 0.002) and global cognitive function. The conversion rate to dementia was significantly higher in the PD-LID+ group than in the PD-LID− group (adjusted hazard ratio [HR] 3.94, 95% confidence interval [CI] 1.76–8.82). Patients with MCI in the PD-LID+ group had a higher risk of PD dementia conversion than those with normal cognition (adjusted HR 6.08, 95% CI 1.25–29.56) or MCI (adjusted HR 4.05, 95% CI 1.14–14.43) in the PD-LID− group.ConclusionsThese results demonstrated that LID was closely associated with the progression of cognitive decline, especially frontal executive dysfunction, and the development of PD dementia.

Cognitive Impairment and Physical Activity in Old Age: The Impact on All-Cause Mortality in a 15-Year Follow-Up of the Bambuí Cohort Study of Aging

2020 ◽  
Author(s):  
Erico Castro-Costa ◽  
Jerson Laks ◽  
Cecilia Godoi Campos ◽  
Josélia OA Firmo ◽  
Maria Fernanda Lima-Costa ◽  
...  
Keyword(s):  
Physical Activity ◽  
Cohort Study ◽  
Cognitive Impairment ◽  
Old Age ◽  
All Cause Mortality ◽  
The Impact

scholarly journals Acute Dental Periapical Abscess and New-Onset Atrial Fibrillation: A Nationwide, Population-Based Cohort Study

2021 ◽  
Vol 10 (13) ◽  
pp. 2927
Author(s):  
Amaar Obaid Hassan ◽  
Gregory Y. H. Lip ◽  
Arnaud Bisson ◽  
Julien Herbert ◽  
Alexandre Bodin ◽  
...  
Keyword(s):  
Atrial Fibrillation ◽  
Cohort Study ◽  
Multivariable Analysis ◽  
National Database ◽  
Increased Risk ◽  
Periapical Abscess ◽  
The Relationship ◽  
Onset Atrial Fibrillation ◽  
New Onset

There are limited data on the relationship of acute dental infections with hospitalisation and new-onset atrial fibrillation (AF). This study aimed to assess the relationship between acute periapical abscess and incident AF. This was a retrospective cohort study from a French national database of patients hospitalized in 2013 (3.4 million patients) with at least five years of follow up. In total, 3,056,291 adults (55.1% female) required hospital admission in French hospitals in 2013 while not having a history of AF. Of 4693 patients classified as having dental periapical abscess, 435 (9.27%) developed AF, compared to 326,241 (10.69%) without dental periapical abscess that developed AF over a mean follow-up of 4.8 ± 1.7 years. Multivariable analysis indicated that dental periapical abscess acted as an independent predictor for new onset AF (p < 0.01). The CHA2DS2VASc score in patients with acute dental periapical abscess had moderate predictive value for development of AF, with Area Under the Curve (AUC) 0.73 (95% CI, 0.71–0.76). An increased risk of new onset AF was identified for individuals hospitalized with dental periapical abscess. Careful follow up of patients with severe, acute dental periapical infections is needed for incident AF, as well as investigations of possible mechanisms linking these conditions.

scholarly journals Which Neuropsychological Tests? Predicting Cognitive Decline and Dementia in Parkinson’s Disease in the ICICLE-PD Cohort

2021 ◽  
pp. 1-12
Author(s):  
Rachael A. Lawson ◽  
Caroline H. Williams-Gray ◽  
Marta Camacho ◽  
Gordon W. Duncan ◽  
Tien K. Khoo ◽  
...  
Keyword(s):  
Parkinson’S Disease ◽  
Parkinson's Disease ◽  
Cognitive Impairment ◽  
Cognitive Decline ◽  
Verbal Fluency ◽  
Neuropsychological Tests ◽  
Visual Memory ◽  
Attention And Memory ◽  
Memory And Attention ◽  
Global Cognition

Background: Cognitive impairment is common in Parkinson’s disease (PD), with 80% cumulatively developing dementia (PDD). Objective: We sought to identify tests that are sensitive to change over time above normal ageing so as to refine the neuropsychological tests predictive of PDD. Methods: Participants with newly diagnosed PD (n = 211) and age-matched controls (n = 99) completed a range of clinical and neuropsychological tests as part of the ICICLE-PD study at 18-month intervals over 72 months. Impairments on tests were determined using control means (<1-2SD) and median scores. Mild cognitive impairment (PD-MCI) was classified using 1-2SD below normative values. Linear mixed effects modelling assessed cognitive decline, while Cox regression identified baseline predictors of PDD. Results: At 72 months, 46 (cumulative probability 33.9%) participants had developed PDD; these participants declined at a faster rate in tests of global cognition, verbal fluency, memory and attention (p <  0.05) compared to those who remained dementia-free. Impaired baseline global cognition, visual memory and attention using median cut-offs were the best predictors of early PDD (area under the curve [AUC] = 0.88, p <  0.001) compared to control-generated cut-offs (AUC = 0.76–0.84, p <  0.001) and PD-MCI (AUC] = 0.64–0.81, p <  0.001). Impaired global cognition and semantic fluency were the most useful brief tests employable in a clinical setting (AUC = 0.79, p <  0.001). Conclusion: Verbal fluency, attention and memory were sensitive to change in early PDD and may be suitable tests to measure therapeutic response in future interventions. Impaired global cognition, attention and visual memory were the most accurate predictors for developing a PDD. Future studies could consider adopting these tests for patient clinical trial stratification.

scholarly journals The Role of High Triglycerides Level in Predicting Cognitive Impairment: A Review of Current Evidence

Nutrients ◽  
2021 ◽  
Vol 13 (6) ◽  
pp. 2118
Author(s):  
Alina Mihaela Dimache ◽  
Delia Lidia Șalaru ◽  
Radu Sascău ◽  
Cristian Stătescu
Keyword(s):  
Cognitive Impairment ◽  
Cognitive Decline ◽  
Lifestyle Modification ◽  
Cognitive Disorders ◽  
Current Evidence ◽  
Barrier Dysfunction ◽  
Serum Triglycerides ◽  
Cerebral Amyloidosis ◽  
The Relationship

The burden of cognitive disorders is huge and still growing, however the etiology and the degree of cognitive impairment vary considerably. Neurodegenerative and vascular mechanisms were most frequently assessed in patients with dementia. Recent studies have shown the possible involvement of triglycerides levels in cognitive function through putative mechanisms such as brain blood barrier dysfunction or amyloid metabolism imbalance, but not all research in the field found this association. Several clinical studies evaluated the relationship between different forms of cognitive decline and levels of serum triglycerides, independent of other cardiovascular risk factors. This review focuses on the role of triglycerides in cognitive decline, cerebral amyloidosis and vascular impairment. Considering that the management of hypertriglyceridemia benefits from lifestyle modification, diet, and specific drug therapy, future studies are requested to appraise the triglycerides–cognitive impairment relationship.

scholarly journals Lower functional hippocampal redundancy in mild cognitive impairment

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Stephanie Langella ◽  
◽  
Muhammad Usman Sadiq ◽  
Peter J. Mucha ◽  
Kelly S. Giovanello ◽  
...  
Keyword(s):  
Cognitive Impairment ◽  
Mild Cognitive Impairment ◽  
Cognitive Decline ◽  
Resting State ◽  
Memory Performance ◽  
Potential Mechanism ◽  
Network Efficiency ◽  
Cognitively Normal ◽  
Normal Individuals ◽  
The Relationship

AbstractWith an increasing prevalence of mild cognitive impairment (MCI) and Alzheimer’s disease (AD) in response to an aging population, it is critical to identify and understand neuroprotective mechanisms against cognitive decline. One potential mechanism is redundancy: the existence of duplicate elements within a system that provide alternative functionality in case of failure. As the hippocampus is one of the earliest sites affected by AD pathology, we hypothesized that functional hippocampal redundancy is protective against cognitive decline. We compared hippocampal functional redundancy derived from resting-state functional MRI networks in cognitively normal older adults, with individuals with early and late MCI, as well as the relationship between redundancy and cognition. Posterior hippocampal redundancy was reduced between cognitively normal and MCI groups, plateauing across early and late MCI. Higher hippocampal redundancy was related to better memory performance only for cognitively normal individuals. Critically, functional hippocampal redundancy did not come at the expense of network efficiency. Our results provide support that hippocampal redundancy protects against cognitive decline in aging.

Analyses of Visuospatial and Visuoperceptual Errors as Predictors of Dementia in Parkinson’s Disease Patients with Subjective Cognitive Decline and Mild Cognitive Impairment

2020 ◽  
pp. 1-11
Author(s):  
Iván Galtier ◽  
Antonieta Nieto ◽  
María Mata ◽  
Jesús N. Lorenzo ◽  
José Barroso
Keyword(s):  
Risk Factors ◽  
Parkinson’S Disease ◽  
Parkinson's Disease ◽  
Cognitive Impairment ◽  
Mild Cognitive Impairment ◽  
Cognitive Decline ◽  
Poor Performance ◽  
Subjective Cognitive Decline ◽  
Independent Risk Factors

ABSTRACT Objective: Subjective cognitive decline (SCD) and mild cognitive impairment (MCI) in Parkinson’s disease (PD) are considered as the risk factors for dementia (PDD). Posterior cortically based functions, such as visuospatial and visuoperceptual (VS-VP) processing, have been described as predictors of PDD. However, no investigations have focused on the qualitative analysis of the Judgment of Line Orientation Test (JLOT) and the Facial Recognition Test (FRT) in PD-SCD and PD-MCI. The aim of this work was to study the VS-VP errors in JLOT and FRT. Moreover, these variables are considered as predictors of PDD. Method: Forty-two PD patients and 19 controls were evaluated with a neuropsychological protocol. Patients were classified as PD-SCD and PD-MCI. Analyses of errors were conducted following the procedure described by Ska, Poissant, and Joanette (1990). Follow-up assessment was conducted to a mean of 7.5 years after the baseline. Results: PD-MCI patients showed a poor performance in JLOT and FRT total score and made a greater proportion of severe intraquadrant (QO2) and interquadrant errors (IQO). PD-SCD showed a poor performance in FRT and made mild errors in JLOT. PD-MCI and QO2/IQO errors were independent risk factors for PDD during the follow-up. Moreover, the combination of both PD-MCI diagnosis and QO2/IQO errors was associated with a greater risk. Conclusions: PD-MCI patients presented a greater alteration in VS-VP processing observable by the presence of severe misjudgments. PD-SCD patients also showed mild difficulties in VS-SP functions. Finally, QO2/IQO errors in PD-MCI are a useful predictor of PDD, more than PD-MCI diagnosis alone.

scholarly journals 332 - Electroconvulsive therapy in older adults with major depression was not associated with cognitive decline during a 15-year follow-up

2020 ◽  
Vol 32 (S1) ◽  
pp. 91-91
Keyword(s):  
Cognitive Impairment ◽  
Mild Cognitive Impairment ◽  
Major Depression ◽  
Cognitive Decline ◽  
Electroconvulsive Therapy ◽  
Antidepressant Treatment ◽  
Community Sample ◽  
Control Group

AUTHORS:Kerstin Johansson, Karolina Thömkvist, Ingmar Skoog and Sacuiu SF* (*presenter)OBJECTIVE:To determine the effects of electroconvulsive therapy (ECT) in major depression in relation to the development of dementia during long-term follow-up.METHOD:In an observational clinical prospective study of consecutive patients 70 years and older diagnosed with major depression at baseline 2000-2004 (n=1090), who were free of dementia and received antidepressant treatment, with or without ECT, we sought to determine if cognitive decline (mild cognitive impairment and dementia) during 15 -year follow-up was associated with receiving ECT at baseline. The control group was selected among the participants in the Gothenburg H70 Birth Cohort Studies matched by age group and sex 1:1.RESULTS:Among patients with affective syndromes 7% received ECT. During follow-up, 157 patients were diagnosed with dementia, equal proportions among those who received ECT (14.5%) and those who did not receive ECT (14.5%). The relation between ECT and cognitive decline remained non-significant irrespective antidepressive medication or presence of mild cognitive impairment at baseline.CONCLUSION:Preliminary results indicate that ECT was not associated with the development of cognitive decline in the long-term in a hospital-based cohort of 70+ year-olds. The results remain to verify against controls from a representative community sample.

Prospective Associations of Physical Frailty With Future Falls and Fear of Falling: A 48-Month Cohort Study

2021 ◽  
Author(s):  
K Makino ◽  
S Lee ◽  
S Bae ◽  
I Chiba ◽  
K Harada ◽  
...  
Keyword(s):  
Older Adults ◽  
Cohort Study ◽  
Fear Of Falling ◽  
Community Dwelling ◽  
Cardiovascular Health Study ◽  
Physical Frailty ◽  
Frailty Status ◽  
Community Dwelling Older Adults ◽  
The Relationship

Abstract Objective The present study aimed to examine the prospective associations of physical frailty with future falls and fear of falling (FOF) among community-dwelling older adults. Methods A prospective cohort study with a 48-month follow-up was conducted in a Japanese community. Participants were 2469 community-dwelling older adults aged 65 years or older who completed baseline and follow-up assessments at intervals of 48±2 months. Primary outcomes were recent falls (defined as at least one fall within the past year) and FOF (determined by response to “Are you afraid of falling?”) at follow-up survey. Physical frailty, operationalized by the frailty phenotype (slowness, weakness, exhaustion, weight loss, and low activity) based on the criteria of the Japanese version of the Cardiovascular Health Study (J-CHS), was also assessed as a predictor of future falls and FOF. Results Multivariate logistic regression showed that pre-frailty or frailty increase the risk of not only future falls (OR: 1.57; 95%CI = 1.20-2.05) but also FOF (OR: 1.33; 95%CI = 1.05-1.69). In addition, the relationship between baseline frailty status and future falls remained significant after adjusting for baseline FOF (OR: 1.55; 95%CI = 1.19-2.02), and the relationship between baseline frailty status and future FOF also remained significant after adjusting for baseline falls (OR: 1.32; 95%CI = 1.04-1.68). Conclusions Frailty status may predict future falls and FOF among community-dwelling older adults. Strategies to prevent frailty may be beneficial to prevent not only future falls but also future FOF in a community setting. Impact Falls and FOF have a close relationship but a different clinical meaning. Older adults with physical frailty may require monitoring as high-risk not only for falls but also for FOF.

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