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Dementia and stroke

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https://www.readbyqxmd.com/read/28329031/who-take-naps-self-reported-and-objectively-measured-napping-in-very-old-women
#1
Yue Leng, Katie Stone, Sonia Ancoli-Israel, Kenneth Covinsky, Kristine Yaffe
Background: Despite the widespread belief that napping is common among older adults, little is known about the correlates of napping. We examined the prevalence and correlates of self-reported and objectively measured napping among very old women. Methods: We studied 2,675 community-dwelling women (mean age 84.5 ± 3.7 years; range 79-96). Self-reported napping was defined as a report of regular napping for ≥1 hour per day. Individual objective naps were defined as ≥5 consecutive minutes of inactivity as measured by actigraphy and women were characterized as "objective nappers" if they had at least 60 minutes of naps per day...
February 18, 2017: Journals of Gerontology. Series A, Biological Sciences and Medical Sciences
https://www.readbyqxmd.com/read/28323321/observed-hearing-loss-and-incident-dementia-in-a-multiethnic-cohort
#2
Justin S Golub, José A Luchsinger, Jennifer J Manly, Yaakov Stern, Richard Mayeux, Nicole Schupf
OBJECTIVES: To determine whether observed hearing loss (OHL) is associated with incident dementia in a multiethnic population. DESIGN: Prospective epidemiological cohort study. SETTING: Community in northern Manhattan. PARTICIPANTS: Participants in the Washington Heights-Inwood Columbia Aging Project, a longitudinal study on aging and dementia in an ethnically diverse community (n = 1,881). MEASUREMENTS: OHL was defined when the examiner observed it or according to self-reported hearing aid use...
March 21, 2017: Journal of the American Geriatrics Society
https://www.readbyqxmd.com/read/28322905/bilingualism-delays-the-onset-of-behavioural-but-not-aphasic-forms-of-frontotemporal-dementia
#3
Suvarna Alladi, Thomas H Bak, Mekala Shailaja, Divyaraj Gollahalli, Amuya Rajan, Bapiraju Surampudi, Michael Hornberger, Vasanta Duggirala, Jaydip Ray Chaudhuri, Subhash Kaul
Bilingualism has been found to delay onset of dementia and this has been attributed to an advantage in executive control in bilinguals. However, the relationship between bilingualism and cognition is complex, with costs as well as benefits to language functions. To further explore the cognitive consequences of bilingualism, the study used Frontotemporal dementia (FTD) syndromes, to examine whether bilingualism modifies the age at onset of behavioural and language variants of Frontotemporal dementia (FTD) differently...
March 17, 2017: Neuropsychologia
https://www.readbyqxmd.com/read/28320363/the-mediational-role-of-physical-activity-social-contact-and-stroke-on-the-association-between-age-education-employment-and-dementia-in-an-asian-older-adult-population
#4
Edimansyah Abdin, Siow Ann Chong, Chao Xu Peh, Janhavi Ajit Vaingankar, Boon Yiang Chua, Swapna Verma, Anitha Jeyagurunathan, Saleha Shafie, Mythily Subramaniam
BACKGROUND: Our study aimed to investigate the pathways by which socio-demographic factors, modifiable health and lifestyle risk factors influence each other, and subsequently, lead to dementia. METHODS: We used data from the Well-being of the Singapore Elderly study, a nationally representative survey of the older adult population aged 60 years and above in Singapore. Dementia diagnosis was established using 10/66 dementia criteria. Structural equation modelling (SEM) without latent variable was applied to confirm the hypothesized model...
March 20, 2017: BMC Psychiatry
https://www.readbyqxmd.com/read/28320171/stroke-severity-predicts-poststroke-delirium-and-its-association-with-dementia-longitudinal-observation-from-a-low-income-setting
#5
Akin Ojagbemi, Mayowa Owolabi, Toyin Bello, Olusegun Baiyewu
OBJECTIVE: The effect of delirium on stroke outcome has not been quantified in sub-Saharan Africa. We investigated the prevalence of delirium occurring within one week of stroke in Nigerian survivors and its association with dementia and mortality at 3months. METHODS: Delirium was ascertained after repeated assessments within one week of stroke using the Confusion Assessment Method. Demographic and clinical characteristics, stroke severity, current and pre-morbid cognitive functioning were also assessed...
April 15, 2017: Journal of the Neurological Sciences
https://www.readbyqxmd.com/read/28318355/dementia-incidence-and-predictors-in-cerebral-amyloid-angiopathy-patients-without-intracerebral-hemorrhage
#6
Li Xiong, Gregoire Boulouis, Andreas Charidimou, Duangnapa Roongpiboonsopit, Michael J Jessel, Marco Pasi, Yael D Reijmer, Panagiotis Fotiadis, Alison Ayres, Emily Merrill, Kristin Schwab, Deborah Blacker, M Edip Gurol, Steven M Greenberg, Anand Viswanathan
Cerebral amyloid angiopathy (CAA) is a common cause of cognitive impairment in older individuals. This study aimed to investigate predictors of dementia in CAA patients without intracerebral hemorrhage (ICH). A total of 158 non-demented patients from the Stroke Service or the Memory Clinic who met the modified Boston Criteria for probable CAA were included. At baseline, neuroimaging markers, including lobar microbleeds (cerebral microbleeds (CMBs)), white matter hyperintensities (WMH), cortical superficial siderosis (cSS), magnetic resonance imaging (MRI)-visible centrum semiovale perivascular spaces (CSO-PVS), lacunes, and medial temporal atrophy (MTA) were assessed...
January 1, 2017: Journal of Cerebral Blood Flow and Metabolism
https://www.readbyqxmd.com/read/28317060/prognostic-factors-for-mortality-in-patients-with-bullous-pemphigoid-a-meta-analysis
#7
Yi-Di Liu, Yan-Hong Wang, Yi-Cong Ye, Wen-Ling Zhao, Li Li
Bullous pemphigoid (BP) is a chronic debilitating autoimmune blistering disease that frequently occurs in the elderly population. Previous studies have suggested a high morbidity and mortality associated with BP. However, relatively few studies have investigated prognostic factors of BP mortality, and they showed considerably various results. This meta-analysis aimed to quantitatively assess the association between several potential prognostic factors and risk of mortality in bullous pemphigoid. A comprehensive search was performed using Pubmed, Embase, and Cochrane Library...
March 19, 2017: Archives of Dermatological Research
https://www.readbyqxmd.com/read/28304291/insulin-resistance-and-future-cognitive-performance-and-cognitive-decline-in%C3%A2-elderly-patients-with-cardiovascular-disease
#8
Miri Lutski, Galit Weinstein, Uri Goldbourt, David Tanne
BACKGROUND: The role of insulin resistance (IR) in the pathogenesis of cognitive performance is not yet clear. OBJECTIVE: To examine the associations between IR and cognitive performance and change in cognitive functions two decades later in individuals with cardiovascular disease with and without diabetes. METHODS: A subset of 489 surviving patients (mean age at baseline 58±6.6 y) with coronary heart disease who previously participated in the secondary prevention Bezafibrate Infarction Prevention (BIP trial; 1990-1997), were included in the current neurocognitive study...
March 10, 2017: Journal of Alzheimer's Disease: JAD
https://www.readbyqxmd.com/read/28302914/new-insights-into-mechanisms-of-small-vessel-disease-stroke-from-genetics
#9
REVIEW
Rhea Tan, Matthew Traylor, Loes Rutten-Jacobs, Hugh Markus
Cerebral small vessel disease (SVD) is a common cause of lacunar strokes, vascular cognitive impairment (VCI) and vascular dementia. SVD is thought to result in reduced cerebral blood flow, impaired cerebral autoregulation and increased blood-brain barrier (BBB) permeability. However, the molecular mechanisms underlying SVD are incompletely understood. Recent studies in monogenic forms of SVD, such as cerebral autosomal dominant arteriopathy with subcortical infarcts and leukoencephalopathy (CADASIL), and 'sporadic' SVD have shed light on possible disease mechanisms in SVD...
April 1, 2017: Clinical Science (1979-)
https://www.readbyqxmd.com/read/28301907/drug-adherence-in-patients-with-nonvalvular-atrial-fibrillation-taking-non-vitamin-k-antagonist-oral-anticoagulants-in-turkey
#10
Sadık Volkan Emren, Oktay Şenöz, Murat Bilgin, Osman Beton, Abdullah Aslan, Uğur Taşkin, Gönül Açiksari, Lale Dinç Asarcikli, Hakan Çakir, Lütfü Bekar, İsmail Bolat, Çağrı Yayla, Barış Çelebi, Onur Dalgiç, Oğuzhan Çelik, Özgen Şafak, Serdar Akyel, Hasan Güngör, Barış Düzel, Mehdi Zoghi
Adherence to non-vitamin K antagonist oral anticoagulants (NOACs) is an important factor for ensuring efficacy and safety in nonvalvular atrial fibrillation (NVAF). There are controversial results regarding NOAC adherence in real-world data and there are no data about NOAC adherence in Turkish population. This study investigated the NOAC adherence based on self-report, factors affecting nonadherence, and the relation of the adherence level with efficacy and safety outcomes. This multicenter cross-sectional study included 2738 patients (59% female) using NOAC (dabigatran, apixaban, and rivaroxaban) due to NVAF for more than 3 months with >30 days of supply between September 1, 2015, and February 28, 2016...
January 1, 2017: Clinical and Applied Thrombosis/hemostasis
https://www.readbyqxmd.com/read/28299744/a-simple-adaptable-blood-brain-barrier-cell-model-for-screening-matrix-metalloproteinase-inhibitor-functionality
#11
Jennifer S Myers, Joan Hare, Qing-Xiang Amy Sang
The blood-brain barrier is a multicellular and basement membrane unit that regulates molecular transport between the blood and central nervous system. Many cerebral pathologies, such as acute stroke and chronic vascular dementia, result in a disrupted blood-brain barrier, increasing its permeability and allowing the entry of potentially neurotoxic molecules. The activation of matrix metalloproteinases mediates further blood-brain barrier damage. The inhibition of matrix metalloproteinases is a potential strategy for stroke therapy...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28298143/p450-eicosanoids-and-ros-interplay-in-brain-injury-and-neuroprotection
#12
Xuehong Liu, Catherine M Davis, Nabil J Alkayed
<b>Significance</b>. Eicosanoids are endogenous lipid mediators that play important roles in brain function and disease. Acute brain injury such as that occurs in stroke and traumatic brain injury (TBI) increases the formation of eicosanoids, which in return exacerbate or diminish injury. In chronic neurodegenerative diseases such as Alzheimer's disease (AD) and vascular dementia (VD), eicosanoid synthetic and metabolizing enzymes are altered, disrupting the balance between neuroprotective and neurotoxic eicosanoids...
March 16, 2017: Antioxidants & Redox Signaling
https://www.readbyqxmd.com/read/28294711/potential-bedside-utility-of-the-clock-drawing-test-in-evaluating-rapid-therapeutic-response-in-the-natural-course-of-schizophrenia-a-preliminary-study
#13
Ramdas Sarjerao Ransing, Praveen Homdeorao Khairkar, Kshirod Mishra, Gajanan Sakekar
The Clock-Drawing Test (CDT) is a brief, relatively time-efficient, easy to administer at bedside, and well-proven cognitive screening test that assesses a broad range of cognitive abilities in stroke, delirium, and dementia. However, challenges of comprehensive therapeutic outcome evaluations in schizophrenia can also be potentially overcome using CDT. The authors aimed to measure the therapeutic outcome using CDT in 101 schizophrenia patients, irrespective of their diagnostic subtypes. A repeated measures analysis of variance found that improvements on CDT and the Positive and Negative Syndrome Scale were closely correlated, reflecting critical information about therapeutic response measures in schizophrenia...
March 15, 2017: Journal of Neuropsychiatry and Clinical Neurosciences
https://www.readbyqxmd.com/read/28291765/cervical-spine-surgery-complications-and-risks-in-the-elderly
#14
Kris Radcliff, Kevin L Ong, Scott Lovald, Edmund Lau, Mark Kurd
STUDY DESIGN: Cervical decompression (CD) and cervical fusion (CF) patients in 5% Medicare Part B claims data. OBJECTIVE: Evaluate the complication rate and associated risk factors after cervical spine surgery using a national sample of elderly patients. SUMMARY OF BACKGROUND DATA: The number of cervical spine procedures in the United States has risen along with associated hospital costs. Postoperative complications lead to longer hospitalizations and greater costs...
March 15, 2017: Spine
https://www.readbyqxmd.com/read/28291701/obstructive-sleep-apnea-exaggerates-cognitive-dysfunction-in-stroke-patients
#15
Yan Zhang, Wanhua Wang, Sijie Cai, Qi Sheng, Shenggui Pan, Fang Shen, Qing Tang, Yang Liu
BACKGROUND: Obstructive sleep apnea (OSA) is very common in stroke survivors. It potentially worsens the cognitive dysfunction and inhibits their functional recovery. However, whether OSA independently damages the cognitive function in stroke patients is unclear. A simple method for evaluating OSA-induced cognitive impairment is also missing. METHODS: Forty-four stroke patients six weeks after onset and 24 non-stroke patients with snoring were recruited for the polysomnographic study of OSA and sleep architecture...
February 4, 2017: Sleep Medicine
https://www.readbyqxmd.com/read/28289478/cerebral-white-matter-hyperintensities-on-mri-and-acceleration-of-epigenetic-aging-the-atherosclerosis-risk-in-communities-study
#16
Abhay Raina, Xiaoping Zhao, Megan L Grove, Jan Bressler, Rebecca F Gottesman, Weihua Guan, James S Pankow, Eric Boerwinkle, Thomas H Mosley, Myriam Fornage
BACKGROUND: Cerebral white matter hyperintensities (WMH) on magnetic resonance imaging (MRI) are part of the spectrum of brain vascular injury accompanying aging and are associated with a substantial risk of stroke and dementia. We investigated the association of cerebral WMH burden on MRI with a DNA methylation-based biomarker of aging, termed DNA methylation age acceleration, which represents the deviation of the DNA methylation-predicted age from the chronologic age. RESULTS: In this cross-sectional observational study of 713 African-American participants of the Atherosclerosis Risk in Communities study, aged 51-73 years, estimates of predicted age were obtained based on two algorithms (Hannum et al...
2017: Clinical Epigenetics
https://www.readbyqxmd.com/read/28276862/excessive-decline-from-premorbid-functioning-detecting-performance-invalidity-with-the-wais-iv-and-demographic-predictions
#17
Phillip K Martin, Ben P Hunter, Amanda M Rach, Robin J Heinrichs, Ryan W Schroeder
OBJECTIVE: Excessive Decline from Premorbid Functioning (EDPF) is presented as a construct and defined as a discrepancy between predicted premorbid ability and current test performance that is so atypical of individuals with true neurocognitive impairment that it is likely the product of performance invalidity. New embedded PVTs (EDPF-FSIQ, EDPF-VW, and EDPF-PP) were derived by comparing scores from the WAIS-IV to TOPF demographically predicted premorbid estimates and then examined for classification accuracy...
February 17, 2017: Clinical Neuropsychologist
https://www.readbyqxmd.com/read/28273786/influence-of-statin-therapy-at-time-of-stroke-onset-on-functional-outcome-among-patients-with-atrial-fibrillation
#18
Darae Ko, Jonathan L Thigpen, James A Otis, Kristen Forster, Lori Henault, Emily Quinn, Yorghos Tripodis, Peter B Berger, Nita Limdi, Elaine M Hylek
BACKGROUND: Statin pretreatment has been associated with reduced infarct volume in nonlacunar strokes. The effect of statins on functional outcomes of strokes related to atrial fibrillation (AF) is unknown. We aimed to define the influence of prestroke statin use on functional outcome in AF. METHODS: We assembled a cohort of consecutive ischemic stroke patients from 2006 to 2010. All patients underwent CT or MRI and were adjudicated by site investigators. AF was confirmed by electrocardiogram in 100% of patients...
January 15, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/28271496/genetics-of-migraine-insights-into-the-molecular-basis-of-migraine-disorders
#19
REVIEW
Heidi G Sutherland, Lyn R Griffiths
Migraine is a complex, debilitating neurovascular disorder, typically characterized by recurring, incapacitating attacks of severe headache often accompanied by nausea and neurological disturbances. It has a strong genetic basis demonstrated by rare migraine disorders caused by mutations in single genes (monogenic), as well as familial clustering of common migraine which is associated with polymorphisms in many genes (polygenic). Hemiplegic migraine is a dominantly inherited, severe form of migraine with associated motor weakness...
March 8, 2017: Headache
https://www.readbyqxmd.com/read/28271039/deep-multi-scale-location-aware-3d-convolutional-neural-networks-for-automated-detection-of-lacunes-of-presumed-vascular-origin
#20
Mohsen Ghafoorian, Nico Karssemeijer, Tom Heskes, Mayra Bergkamp, Joost Wissink, Jiri Obels, Karlijn Keizer, Frank-Erik de Leeuw, Bram van Ginneken, Elena Marchiori, Bram Platel
Lacunes of presumed vascular origin (lacunes) are associated with an increased risk of stroke, gait impairment, and dementia and are a primary imaging feature of the small vessel disease. Quantification of lacunes may be of great importance to elucidate the mechanisms behind neuro-degenerative disorders and is recommended as part of study standards for small vessel disease research. However, due to the different appearance of lacunes in various brain regions and the existence of other similar-looking structures, such as perivascular spaces, manual annotation is a difficult, elaborative and subjective task, which can potentially be greatly improved by reliable and consistent computer-aided detection (CAD) routines...
2017: NeuroImage: Clinical
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