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Subjective Cognitive Decline

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https://www.readbyqxmd.com/read/28803853/developmental-suppression-of-forebrain-trka-receptors-and-attentional-capacities-in-aging-rats-a-longitudinal-study
#1
Brittney Yegla, Vinay Parikh
Basal forebrain (BF) cholinergic neurons innervating the cortex regulate cognitive, specifically attentional, processes. Cholinergic atrophy and cognitive decline occur at an accelerated pace in age-related neurodegenerative disorders such as Alzheimer's disease; however, the mechanism responsible for this phenomenon remains unknown. Here we hypothesized that developmental suppression of nerve growth factor signaling, mediated via tropomyosin-related kinase A (trkA) receptors, would escalate age-related attentional vulnerability...
August 10, 2017: Behavioural Brain Research
https://www.readbyqxmd.com/read/28803036/relationship-between-atrial-fibrillation-and-cognitive-decline-in-individuals-aged-80-and-older-a-narrative-review
#2
REVIEW
Marco Proietti, Angela Recchia, Emma Riva, Ugo Lucca, Mauro Tettamanti, Pier Mannuccio Mannucci, Alessandro Nobili
BACKGROUND: Atrial fibrillation (AF) and dementia are largely prevalent and incident in progressively older subjects, suggesting a link between the two conditions. While in the general population there are several findings supporting a causal relationship between AF and dementia, it is unclear whether or not this association is still present in individuals aged 80 and older. RESULTS: So far, the few studies that analysed this issue did not provide enough evidence supporting the causative role of AF in increasing the risk of cognitive decline or dementia in patients aged 80 and older...
August 9, 2017: European Journal of Internal Medicine
https://www.readbyqxmd.com/read/28802933/cognition-in-parkinson-s-disease
#3
Claire O'Callaghan, Simon J G Lewis
Cognitive decline is now recognized as a common nonmotor symptom of Parkinson's disease, and it has been the subject of increasing research in recent decades. Cognitive deficits in Parkinson's disease can be distinguished as dopaminergically mediated executive dysfunction seen in the milder stages vs a global dementia syndrome that can occur with disease progression. The neural basis of these deficits has been explored from the perspective of multimodal imaging techniques to measure the structural, functional, and metabolic correlates of cognitive decline in Parkinson's disease...
2017: International Review of Neurobiology
https://www.readbyqxmd.com/read/28799862/disrupted-topologic-efficiency-of-white-matter-structural-connectome-in-individuals-with-subjective-cognitive-decline
#4
Ni Shu, Xiaoni Wang, Qiuhui Bi, Tengda Zhao, Ying Han
Purpose To determine whether individuals with subjective cognitive decline (SCD), which is defined by memory complaints with normal performance at objective neuropsychologic examinations, exhibit disruptions of white matter (WM) connectivity and topologic alterations of the brain structural connectome. Materials and Methods Diffusion-tensor magnetic resonance imaging and graph theory approaches were used to investigate the topologic organization of the brain structural connectome in 36 participants with SCD (21 women: mean age, 62...
August 11, 2017: Radiology
https://www.readbyqxmd.com/read/28797640/a-comprehensive-literature-review-of-chronic-pain-and-memory
#5
REVIEW
Stéphanie Mazza, Maud Frot, Amandine E Rey
Chronic pain patients often complain of their "poor memory" and numerous studies objectively confirmed such difficulties in reporting working memory (WM) and long-term memory (LTM) dysfunctions. This paper provides a comprehensive review of the literature on memory impairment in chronic pain (CP) patients. Twenty-four observational studies evaluating WM or/and LTM in a chronic pain group and a control group were included in this review. Results showed that studies consistently reported a moderate decline, in both WM and LTM performances in CP patients...
August 7, 2017: Progress in Neuro-psychopharmacology & Biological Psychiatry
https://www.readbyqxmd.com/read/28797312/self-perceived-difficulties-in-everyday-function-precede-cognitive-decline-among-older-adults-in-the-active-study
#6
Sarah Tomaszewski Farias, Tania Giovannetti, Brennan R Payne, Michael Marsiske, George W Rebok, K Warner Schaie, Kelsey R Thomas, Sherry L Willis, Joseph M Dzierzewski, Frederick Unverzagt, Alden L Gross
OBJECTIVES: Careful characterization of how functional decline co-evolves with cognitive decline in older adults has yet to be well described. Most models of neurodegenerative disease postulate that cognitive decline predates and potentially leads to declines in everyday functional abilities; however, there is mounting evidence that subtle decline in instrumental activities of daily living (IADLs) may be detectable in older individuals who are still cognitively normal. METHODS: The present study examines how the relationship between change in cognition and change in IADLs are best characterized among older adults who participated in the ACTIVE trial...
August 11, 2017: Journal of the International Neuropsychological Society: JINS
https://www.readbyqxmd.com/read/28796560/facial-emotion-decoding-in-patients-with-parkinson-s-disease
#7
Marco De Risi, Giancarlo Di Gennaro, Angelo Picardi, Sara Casciato, Liliana G Grammaldo, Alfredo D'Aniello, Deborah Lanni, Stefano Meletti, Nicola Modugno
PURPOSE: In line with the growing attention on non-motor symptoms and disturbance of affective and emotional processing in Parkinson's disease, we aimed to study different aspects of facial emotion expression evaluation in a group of PD without cognitive decline in treatment with common antiparkinsonian drugs, matched for sex, age, and education with healthy subjects. MATERIALS AND METHODS: The study was conducted on 30 patients (13 male; mean age: 63.3±6.7; mean age of disease onset: 56...
August 10, 2017: International Journal of Neuroscience
https://www.readbyqxmd.com/read/28792471/comparative-studies-on-behavioral-cognitive-and-biomolecular-profiling-of-icr-c57bl-6-and-its-sub-strains-suitable-for-scopolamine-induced-amnesic-models
#8
Govindarajan Karthivashan, Shin-Young Park, Joon-Soo Kim, Duk-Yeon Cho, Palanivel Ganesan, Dong-Kug Choi
Cognitive impairment and behavioral disparities are the distinctive baseline features to investigate in most animal models of neurodegenerative disease. However, neuronal complications are multifactorial and demand a suitable animal model to investigate their underlying basal mechanisms. By contrast, the numerous existing neurodegenerative studies have utilized various animal strains, leading to factual disparity. Choosing an optimal mouse strain for preliminary assessment of neuronal complications is therefore imperative...
August 9, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28782464/nimodipine-activates-neuroprotective-signaling-events-and-inactivates-autophages-in-the-vcid-rat-hippocampus
#9
Ming Hu, Zhijuan Liu, Peiyuan Lv, Hebo Wang, Yifei Zhu, Qianqian Qi, Jing Xu, Lei Gao
BACKGROUND: Autophagy and phosphatidylinositol 3-kinase (PI3K)/Akt kinase pathways are implicated in cognitive decline associated with cerebrovascular lesions. This decline is reflected in the concept of vascular cognitive impairment and dementia (VCID). However, the underlying molecular mechanism and specific details regarding these types of cognitive deficits induced by chronic brain hypoperfusion have not been elucidated. METHODS: We designed a method to evaluate these mechanisms...
August 7, 2017: Neurological Research
https://www.readbyqxmd.com/read/28771679/longitudinal-cognitive-profiles-in-diabetes-results-from-the-national-alzheimer-s-coordinating-center-s-uniform-data
#10
Mary Sano, Carolyn W Zhu, Hillel Grossman, Corbett Schimming
BACKGROUND: Diabetes is a risk factor for the development of cognitive impairment and possibly for accelerated progression to Alzheimer disease (AD) and other dementias, though the trajectory of cognitive decline in general and in specfic cognitive domains by diabetes is unclear. METHODS: Using the National Alzheimer's Coordinating Center's Uniform Data Det (NACC-UDS) to identify cohorts of elders with normal cognition (N = 7,663) and mild cognitive impairment (MCI, N = 4,114), we compared overall cognitive composite and domain specific sub-scores and their progression over time between diabetic and non-diabetic subjects...
August 3, 2017: Journal of the American Geriatrics Society
https://www.readbyqxmd.com/read/28769596/more-accurate-systolic-blood-pressure-measurement-is-required-for-improved-hypertension-management-a-perspective
#11
Meir Nitzan, Itzchak Slotki, Linda Shavit
The commonly used techniques for systolic blood pressure (SBP) and diastolic blood pressure (DBP) measurement are the auscultatory Korotkoff-based sphygmomanometry and oscillometry. The former technique is relatively accurate but is limited to a physician's office because its automatic variant is subject to noise artifacts. Consequently, the Korotkoff-based measurement overestimates the blood pressure in some patients due to white coat effect, and because it is a single measurement, it cannot properly represent the variable blood pressure...
2017: Medical Devices: Evidence and Research
https://www.readbyqxmd.com/read/28764796/anticholinergic-drugs-and-functional-cognitive-impairment-and-behavioral-disturbances-in-patients-from-a-memory-clinic-with-subjective-cognitive-decline-or-neurocognitive-disorders
#12
Virginie Dauphinot, Christelle Mouchoux, Sébastien Veillard, Floriane Delphin-Combe, Pierre Krolak-Salmon
BACKGROUND: Drugs with anticholinergic properties may be associated with various adverse clinical effects. The relationship between the anticholinergic (AC) burden and functional, global cognitive performance and behavior disturbances was assessed among elderly patients. METHODS: A cross-sectional study was conducted between January 2012 and June 2014 in a memory clinic among outpatients living at home and with subjective cognitive decline (SCD) or neurocognitive disorders (NCD)...
August 1, 2017: Alzheimer's Research & Therapy
https://www.readbyqxmd.com/read/28756101/autobiographical-memory-compromise-in-individuals-with-alcohol-use-disorders-towards-implications-for-psychotherapy-research
#13
REVIEW
Jean-Louis Nandrino, Marie-Charlotte Gandolphe, Mohamad El Haj
It has been found that Autobiographical memory (i.e., memory for personal experiences and facts about the self) are not properly maintained in people with alcohol-use disorders (AUD). The present paper offers a comprehensive overview of findings regarding the consequences of AUD on autobiographical memory. More specifically, we offer a theoretical model (the AMAUD Autobiographical Memory and Alcohol Use Disorders model) according to which chronic alcohol consumption compromises emotion regulation as well as executive control, which maintains the construction of autobiographical memory...
July 21, 2017: Drug and Alcohol Dependence
https://www.readbyqxmd.com/read/28756038/association-between-glycemic-load-and-cognitive-function-in-community-dwelling-older-adults-results-from-the-brain-in-motion-study
#14
Anna Garber, Ilona Csizmadi, Christine M Friedenreich, Tolulope T Sajobi, Richard S Longman, Amanda V Tyndall, Lauren L Drogos, Margie H Davenport, Marc J Poulin
BACKGROUND: Impaired glucose tolerance is a risk factor for non-age-related cognitive decline and is also associated with measures of physical activity (PA) and cardiorespiratory fitness (CRF). A low glycemic load (GL) diet can aid in the management of blood glucose levels, but little is known about its effect on cognition with poor glucoregulation. OBJECTIVE: We assessed the relation between GL and cognitive function by glucoregulation and possible mediatory effects by CRF and PA in older adults from the Brain in Motion Study...
July 17, 2017: Clinical Nutrition: Official Journal of the European Society of Parenteral and Enteral Nutrition
https://www.readbyqxmd.com/read/28755001/identification-of-clusters-of-rapid-and-slow-decliners-among-subjects-at-risk-for-alzheimer-s-disease
#15
Dragan Gamberger, Nada Lavrač, Shantanu Srivatsa, Rudolph E Tanzi, P Murali Doraiswamy
The heterogeneity of Alzheimer's disease contributes to the high failure rate of prior clinical trials. We analyzed 5-year longitudinal outcomes and biomarker data from 562 subjects with mild cognitive impairment (MCI) from two national studies (ADNI) using a novel multilayer clustering algorithm. The algorithm identified homogenous clusters of MCI subjects with markedly different prognostic cognitive trajectories. A cluster of 240 rapid decliners had 2-fold greater atrophy and progressed to dementia at almost 5 times the rate of a cluster of 184 slow decliners...
July 28, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28750690/increased-a%C3%AE-42-%C3%AE-7-like-nicotinic-acetylcholine-receptor-complex-level-in-lymphocytes-is-associated-with-apolipoprotein-e4-driven-alzheimer-s-disease-pathogenesis
#16
Hoau-Yan Wang, Caryn Trocmé-Thibierge, Andres Stucky, Sanket M Shah, Jessica Kvasic, Amber Khan, Philippe Morain, Isabelle Guignot, Eva Bouguen, Karine Deschet, Maria Pueyo, Elisabeth Mocaer, Pierre-Jean Ousset, Bruno Vellas, Vera Kiyasova
BACKGROUND: The apolipoprotein E ε4 (APOE4) genotype is a prominent late-onset Alzheimer's disease (AD) risk factor. ApoE4 disrupts memory function in rodents and may contribute to both plaque and tangle formation. METHODS: Coimmunoprecipitation and Western blot detection were used to determine: 1) the effects of select fragments from the apoE low-density lipoprotein (LDL) binding domain and recombinant apoE subtypes on amyloid beta (Aβ)42-α7 nicotinic acetylcholine receptor (α7nAChR) interaction and tau phosphorylation in rodent brain synaptosomes; and 2) the level of Aβ42-α7nAChR complexes in matched controls and patients with mild cognitive impairment (MCI) and dementia due to AD with known APOE genotypes...
July 27, 2017: Alzheimer's Research & Therapy
https://www.readbyqxmd.com/read/28750671/adaptive-lymphocyte-profiles-correlate-to-brain-a%C3%AE-burden-in-patients-with-mild-cognitive-impairment
#17
Ann M Stowe, Sara J Ireland, Sterling B Ortega, Ding Chen, Ryan M Huebinger, Takashi Tarumi, Thomas S Harris, C Munro Cullum, Roger Rosenberg, Nancy L Monson, Rong Zhang
BACKGROUND: We previously found that subjects with amnestic mild cognitive impairment exhibit a pro-inflammatory immune profile in the cerebrospinal fluid similar to multiple sclerosis, a central nervous system autoimmune disease. We therefore hypothesized that early neuroinflammation would reflect increases in brain amyloid burden during amnestic mild cognitive impairment. METHODS: Cerebrospinal fluid and blood samples were collected from 24 participants with amnestic mild cognitive impairment (12 men, 12 women; 66 ± 6 years; 0...
July 27, 2017: Journal of Neuroinflammation
https://www.readbyqxmd.com/read/28748677/subjective-evaluation-of-mood-and-cognitive-functions-in-a-general-neurology-clinic-patients-versus-informants
#18
Adolfo Jiménez-Huete, Antonio Del Barrio, Elena Riva, Pablo Campo, Rafael Toledano, Oriol Franch
BACKGROUND AND PURPOSE: We aimed to determine the correlation between subjective evaluations of mood and cognitive functions by patients and informants, and the findings of a battery of neuropsychological tests. METHODS: We analyzed 74 subjects recruited from a general neurology clinic, comprising 37 patients with cognitive complaints and 37 informants (either relatives or caregivers in close contact with the patients). Four ordinal scales concerning recent memory, verbal expression, initiative, and mood were correlated with the findings of a series of neuropsychological tests and questionnaires using the tau b coefficient...
July 2017: Journal of Clinical Neurology
https://www.readbyqxmd.com/read/28745939/reduced-pineal-volume-in-alzheimer-disease-a-retrospective-cross-sectional-mr-imaging-study
#19
Teruyuki Matsuoka, Ayu Imai, Hiroshi Fujimoto, Yuka Kato, Keisuke Shibata, Kaeko Nakamura, Hajime Yokota, Kei Yamada, Jin Narumoto
Purpose To evaluate pineal volume in patients with Alzheimer disease (AD), patients with mild cognitive impairment (MCI), and healthy control subjects and to correlate the findings with results of cognitive testing and brain parenchymal volumes. Materials and Methods The ethics committee approved this retrospective study. The participants included 63 patients with AD, 33 patients with MCI, and 24 healthy control subjects. There were 36 men and 84 women, with a mean age (±standard deviation) of 76.7 years ± 7...
July 26, 2017: Radiology
https://www.readbyqxmd.com/read/28744704/subjective-cognitive-decline-in-patients-with-migraine-and-its-relationship-with-depression-anxiety-and-sleep-quality
#20
Sun Hwa Lee, Yeonwook Kang, Soo-Jin Cho
BACKGROUND: Cognitive decline is a major concern in patients with migraine. Depression, anxiety, and/or poor sleep quality are well-known comorbidities of migraine, but available evidence on the subjective cognitive decline (SCD) is limited. This study aimed to investigate the presence and frequency of SCD and its relationship with anxiety, depression and sleep quality in patients with migraine. METHODS: We enrolled patients with migraine who scored within the normal range of the Korean-Mini Mental State Examination and the Korean-Montreal Cognitive Assessment...
December 2017: Journal of Headache and Pain
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