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https://www.readbyqxmd.com/read/28239792/involvement-of-glycogen-synthase-kinase-3-in-the-mechanisms-of-conditioned-food-aversion-memory-reconsolidation
#1
V P Nikitin, S V Solntseva, S A Kozyrev
Experiments were performed on the snails trained in conditioned food aversion for 3 days. Injection of TDZD-8 (glycogen synthase kinase-3 inhibitor, 2 mg/kg) in combination with reminder (presentation of a conditioned food stimulus) led to memory impairment developing 3 days after inhibitor/reminder exposure and followed by spontaneous recovery in 10 days. Injections of TDZD-8 in a dose of 4 or 20 mg/kg before reminder were shown to cause amnesia that persisted for more than 10 days. Memory recovery during repeated training was observed at the earlier period than after initial training...
February 27, 2017: Bulletin of Experimental Biology and Medicine
https://www.readbyqxmd.com/read/28239790/antibodies-to-glutamate-reversed-the-amnesic-effects-of-proinflammatory-s100a9-protein-fibrils-in-aged-c57bl-6-mice
#2
M A Gruden, T V Davydova, V G Fomina, L A Vetrile, L A Morozova-Roche, R D E Sewell
Chronic intranasal administration of fibrillar structures of proinflammatory S100A9 protein impaired passive avoidance learning in old C57Bl/6 mice. Combined treatment with S100A9 fibrils and antibodies to glutamate was followed by an increase in horizontal locomotor activity of animals in the open-field test and did not disturb spatial memory.
February 27, 2017: Bulletin of Experimental Biology and Medicine
https://www.readbyqxmd.com/read/28239784/effects-of-afobazole-on-postnatal-development-of-rat-offspring
#3
L I Bugaeva, T D Denisova, S A Sergeeva, Yu A Morozova, I V Kharlamov
Physical development, development of sensory and motor reflexes, behavioral and mnestic patterns were studied infantile and juvenile rat pups born by female rats receiving Afobazole during pregnancy. Physical development and development of sensory and motor reflexes in rats were completed without pathologies by the age of 2 months. During the infantile period, the rat pups demonstrated reduced body weight gain, delayed eye opening and pupillary response formation, decreased muscle force, and suppressed motor behavior...
February 27, 2017: Bulletin of Experimental Biology and Medicine
https://www.readbyqxmd.com/read/28239667/disregard-of-neurological-impairments-associated-with-neglected-tropical-diseases-in-africa
#4
Emmanuel Quansah, Esther Sarpong, Thomas K Karikari
Neglected tropical diseases (NTDs) affect people in the bottom billion poorest in the world. These diseases are concentrated in rural areas, conflict zones and urban slums in Africa and other tropical areas. While the World Health Organization recognizes seventeen priority NTDs, the list of conditions present in Africa and elsewhere that are eligible to be classified as NTDs is much longer. Although NTDs are generally marginalized, their associated neurological burden has been almost completely disregarded...
June 2016: ENeurologicalSci
https://www.readbyqxmd.com/read/28239639/alzheimer-s-biomarkers-in-daily-practice-abide-project-rationale-and-design
#5
Arno de Wilde, Ingrid S van Maurik, Marleen Kunneman, Femke Bouwman, Marissa Zwan, Eline A J Willemse, Geert Jan Biessels, Mirella Minkman, Ruth Pel, Niki S M Schoonenboom, Ellen M A Smets, Mike P Wattjes, Frederik Barkhof, Andrew Stephens, Erik J van Lier, Richard Batrla-Utermann, Philip Scheltens, Charlotte E Teunissen, Bart N M van Berckel, Wiesje M van der Flier
INTRODUCTION: The Alzheimer's biomarkers in daily practice (ABIDE) project is designed to translate knowledge on diagnostic tests (magnetic resonance imaging [MRI], cerebrospinal fluid [CSF], and amyloid positron emission tomography [PET]) to daily clinical practice with a focus on mild cognitive impairment (MCI). METHODS: ABIDE is a 3-year project with a multifaceted design and is structured into interconnected substudies using both quantitative and qualitative research methods...
2017: Alzheimer's & Dementia: Diagnosis, Assessment & Disease Monitoring
https://www.readbyqxmd.com/read/28239637/alzheimer-s-disease-the-influence-of-age-on-clinical-heterogeneity-through-the-human-brain-connectome
#6
Bradford C Dickerson, Michael Brickhouse, Scott McGinnis, David A Wolk
INTRODUCTION: One major factor that influences the heterogeneity of Alzheimer's disease (AD) is age: younger AD patients more frequently exhibit atypical forms of AD. We propose that this age-related heterogeneity can be understood better by considering age-related differences in atrophy in the context of large-scale brain networks subserving cognitive functions that contribute to memory. METHODS: We examined data from 75 patients with mild AD dementia from Alzheimer's Disease Neuroimaging Initiative...
2017: Alzheimer's & Dementia: Diagnosis, Assessment & Disease Monitoring
https://www.readbyqxmd.com/read/28239636/cognitive-impairment-and-decline-in-cognitively-normal-older-adults-with-high-amyloid-%C3%AE-a-meta-analysis
#7
REVIEW
Jenalle E Baker, Yen Ying Lim, Robert H Pietrzak, Jason Hassenstab, Peter J Snyder, Colin L Masters, Paul Maruff
INTRODUCTION: This meta-analysis aimed to characterize the nature and magnitude of amyloid (Aβ)-related cognitive impairment and decline in cognitively normal (CN) older individuals. METHOD: MEDLINE Ovid was searched from 2012 to June 2016 for studies reporting relationships between cerebrospinal fluid or positron emission tomography (PET) Aβ levels and cognitive impairment (cross-sectional) and decline (longitudinal) in CN older adults. Neuropsychological data were classified into domains of episodic memory, executive function, working memory, processing speed, visuospatial function, semantic memory, and global cognition...
2017: Alzheimer's & Dementia: Diagnosis, Assessment & Disease Monitoring
https://www.readbyqxmd.com/read/28239597/perceived-cognitive-deficits-are-associated-with-diabetes-self-management-in-a-multiethnic-sample
#8
Heather Cuevas, Alexa Stuifbergen
BACKGROUND: People with diabetes have almost twice the risk of developing cognitive impairment or dementia as do those without diabetes, and about half of older adults with diabetes will become functionally disabled or cognitively impaired. But diabetes requires complex self-management: patients must learn about the implications of their disease; manage their diets, physical activity, and medication; and monitor their blood glucose. Difficulties with cognition can hinder these activities...
2017: Journal of Diabetes and Metabolic Disorders
https://www.readbyqxmd.com/read/28238815/measurement-of-functional-cognition-and-complex-everyday-activities-in-older-adults-with-mild-cognitive-impairment-and-mild-dementia-validity-of-the-large-allen-s-cognitive-level-screen
#9
Jacqueline Wesson, Lindy Clemson, John D Crawford, Nicole A Kochan, Henry Brodaty, Simone Reppermund
OBJECTIVE: To explore the validity of the Large Allen's Cognitive Level Screen-5 (LACLS-5) as a performance-based measure of functional cognition, representing an ability to perform complex everyday activities in older adults with mild cognitive impairment (MCI) and mild dementia living in the community. METHODS: Using cross-sectional data from the Sydney Memory and Ageing Study, 160 community-dwelling older adults with normal cognition (CN; N = 87), MCI (N = 43), or dementia (N = 30) were studied...
January 4, 2017: American Journal of Geriatric Psychiatry
https://www.readbyqxmd.com/read/28238814/neural-basis-of-cognitive-assessment-in-alzheimer-disease-amnestic-mild-cognitive-impairment-and-subjective-memory-complaints
#10
Jordi A Matías-Guiu, María Nieves Cabrera-Martín, María Valles-Salgado, Alicia Pérez-Pérez, Teresa Rognoni, Teresa Moreno-Ramos, José Luis Carreras, Jorge Matías-Guiu
INTRODUCTION: Interpreting cognitive tests is often challenging. The same test frequently examines multiple cognitive functions, and the functional and anatomical basis underlying test performance is unknown in many cases. This study analyses the correlation of different neuropsychological test results with brain metabolism in a series of patients evaluated for suspected Alzheimer disease. METHODS: 20 healthy controls and 80 patients consulting for memory loss were included, in which cognitive study and (18)F-fluorodeoxyglucose PET were performed...
February 3, 2017: American Journal of Geriatric Psychiatry
https://www.readbyqxmd.com/read/28238775/assessing-the-brain-through-the-eye-new-ways-to-explore-hepatic-encephalopathy
#11
Natalia Arias, Marta Méndez, Ignacio Alcalde, Almudena Íñigo-Portugués, Jesús Merayo-Lloves, Jaime Arias, Jorge L Arias
BACKGROUND & AIMS: Minimal hepatic encephalopathy (mHE) has been shown to affect daily functioning, quality of life, driving and overall mortality. However, little is known about treating or diagnosing early impairments in mHE. We studied one of its precipitating factors, portal hypertension which is driving the inflammatory process behind mHE. The purpose was to describe an indirect diagnostic method able to detect the pathology at early stages based on the study of the vascularization and mast cells conjunctival hyperplasia as secondary inflammatory response associated to portal hypertension...
February 23, 2017: Physiology & Behavior
https://www.readbyqxmd.com/read/28238393/preliminary-evidence-of-improved-cognitive-performance-following-vestibular-rehabilitation-in-children-with-combined-adhd-cadhd-and-concurrent-vestibular-impairment
#12
Younes Lotfi, Nima Rezazadeh, Abdollah Moossavi, Hojjat Allah Haghgoo, Reza Rostami, Enayatollah Bakhshi, Faride Badfar, Sedigheh Farokhi Moghadam, Vahid Sadeghi-Firoozabadi, Yousef Khodabandelou
OBJECTIVE: Balance function has been reported to be worse in ADHD children than in their normal peers. The present study hypothesized that an improvement in balance could result in better cognitive performance in children with ADHD and concurrent vestibular impairment. This study was designed to evaluate the effects of comprehensive vestibular rehabilitation therapy on the cognitive performance of children with combined ADHD and concurrent vestibular impairment. METHODS: Subject were 54 children with combined ADHD...
February 18, 2017: Auris, Nasus, Larynx
https://www.readbyqxmd.com/read/28238167/effects-of-cox1-2-5-lox-blockade-in-alzheimer-transgenic-3xtg-ad-mice
#13
Alessandra Bitto, Daniela Giuliani, Giovanni Pallio, Natasha Irrera, Eleonora Vandini, Fabrizio Canalini, Davide Zaffe, Alessandra Ottani, Letteria Minutoli, Mariagrazia Rinaldi, Salvatore Guarini, Francesco Squadrito, Domenica Altavilla
OBJECTIVE AND DESIGN: Alzheimer's disease (AD) is associated with amyloid plaques (Aβ) and hyperphosphorylated tau protein tangles in the brain. We investigated the possible neuroprotective role of flavocoxid, a dual inhibitor of cyclooxygenases-1/2 (COX-1/2) and 5-Lipoxygenase (5-LOX), in triple-transgenic (3xTg-AD) mice. SUBJECTS: Mice were 3 months at the beginning of the study. TREATMENT: Animals received once daily for 3-month saline solution or flavocoxid (20 mg/kg/ip)...
February 25, 2017: Inflammation Research: Official Journal of the European Histamine Research Society ... [et Al.]
https://www.readbyqxmd.com/read/28237686/age-related-changes-in-neural-oscillations-supporting-context-memory-retrieval
#14
Jonathan Strunk, Taylor James, Jason Arndt, Audrey Duarte
Recent evidence suggests that directing attention toward single item-context associations during encoding improves young and older adults' context memory performance and reduces demands on executive functions during retrieval. In everyday situations, there are many event features competing for our attention, and our ability to successfully recover those details may depend on our ability to ignore others. Failures of selective attention may contribute to older adults' context memory impairments. In the current electroencephalogram (EEG) study, we assessed the effects of age on processes supporting successful context memory retrieval of selectively attended features as indexed by neural oscillations...
February 3, 2017: Cortex; a Journal Devoted to the Study of the Nervous System and Behavior
https://www.readbyqxmd.com/read/28236606/physical-function-differences-between-the-stages-from-normal-cognition-to-moderate-alzheimer-disease
#15
Chisato Fujisawa, Hiroyuki Umegaki, Kazushi Okamoto, Hirotaka Nakashima, Masafumi Kuzuya, Kenji Toba, Takashi Sakurai
OBJECTIVES: We investigated the differences in the physical function test results across stages from normal cognition (NC) to moderate Alzheimer disease (AD) and how risk factors of physical function decline are correlated with the physical function test results. DESIGN: A cross-sectional study of outpatients at the Memory Disorder Outpatient Center of Japan's National Center of Geriatrics and Gerontology. PARTICIPANTS: We enrolled 882 individuals aged ≥65 diagnosed with NC (n = 210), amnestic mild cognitive impairment (aMCI; n = 273), mild AD (n = 181) or moderate AD (n = 197)...
February 21, 2017: Journal of the American Medical Directors Association
https://www.readbyqxmd.com/read/28236380/my-sweetheart-is-broken-role-of-glucose-in-diabetic-cardiomyopathy
#16
REVIEW
Manoja K Brahma, Mark E Pepin, Adam R Wende
Despite overall reductions in heart disease prevalence, the risk of developing heart failure has remained 2-fold greater among people with diabetes. Growing evidence has supported that fluctuations in glucose level and uptake contribute to cardiovascular disease (CVD) by modifying proteins, DNA, and gene expression. In the case of glucose, clinical studies have shown that increased dietary sugars for healthy individuals or poor glycemic control in diabetic patients further increased CVD risk. Furthermore, even after decades of maintaining tight glycemic control, susceptibility to disease progression can persist following a period of poor glycemic control through a process termed "glycemic memory...
February 2017: Diabetes & Metabolism Journal
https://www.readbyqxmd.com/read/28236215/prenatal-stress-impairs-spatial-learning-and-memory-associated-with-lower-mrna-level-of-the-camkii-and-creb-in-the-adult-female-rat-hippocampus
#17
Hongli Sun, Haibin Wu, Jianping Liu, Jun Wen, Zhongliang Zhu, Hui Li
Prenatal stress (PS) results in various behavioral and emotional alterations observed in later life. In particular, PS impairs spatial learning and memory processes but the underlying mechanism involved in this pathogenesis still remains unknown. Here, we reported that PS lowered the body weight in offspring rats, particularly in female rats, and impaired spatial learning and memory of female offspring rats in the Morris water maze. Correspondingly, the decreased CaMKII and CREB mRNA in the hippocampus were detected in prenatally stressed female offspring, which partially explained the effect of PS on the spatial learning and memory...
February 25, 2017: Neurochemical Research
https://www.readbyqxmd.com/read/28236166/alteration-of-regional-homogeneity-and-white-matter-hyperintensities-in-amnestic-mild-cognitive-impairment-subtypes-are-related-to-cognition-and-csf-biomarkers
#18
Xiao Luo, Yerfan Jiaerken, Peiyu Huang, Xiao Jun Xu, Tiantian Qiu, Yunlu Jia, Zhujing Shen, Xiaojun Guan, Jiong Zhou, Minming Zhang
Amnestic mild cognitive impairment can be further classified as single-domain aMCI (SD-aMCI) with isolated memory deficit, or multi-domain aMCI (MD-aMCI) if memory deficit is combined with impairment in other cognitive domains. Prior studies reported these clinical subtypes presumably differ in etiology. Thus, we aimed to explore the possible mechanisms between different aMCI subtypes by assessing alteration in brain activity and brain vasculature, and their relations with CSF AD biomarkers. 49 healthy controls, 32 SD-aMCI, and 32 MD-aMCI, who had undergone structural scans, resting-state functional MRI (rsfMRI) scans and neuropsychological evaluations, were identified...
February 24, 2017: Brain Imaging and Behavior
https://www.readbyqxmd.com/read/28236057/regulation-of-sirtuin-3-mediated-deacetylation-of-cyclophilin-d-attenuated-cognitive-dysfunction-induced-by-sepsis-associated-encephalopathy-in-mice
#19
Fan Sun, Yanna Si, Hongguang Bao, Yajie Xu, XiaoXiao Pan, Lingqing Zeng, Ling Jing
The present study aimed to investigate cognitive dysfunction in the hippocampus induced by sepsis-associated encephalopathy (SAE) via acetylation of cyclophilin D (CypD) and opening of mitochondrial permeability transition pore. It also explored whether activating sirtuin 3 (SIRT3) can mediate deacetylation of CypD and prevent the development of SAE. Male mice were randomly assigned to six groups: sham group, cecal ligation puncture group, CypD siRNA transfection (CypD-si) group, CypD control siRNA transfection (CypD-c) group, SIRT3 overexpression vector pcDNA3...
February 25, 2017: Cellular and Molecular Neurobiology
https://www.readbyqxmd.com/read/28236040/the-oral-administration-of-d-galactose-induces-abnormalities-within-the-mitochondrial-respiratory-chain-in-the-brain-of-rats
#20
Josiane Budni, Michelle Lima Garcez, Francielle Mina, Tatiani Bellettini-Santos, Sabrina da Silva, Aline Pereira da Luz, Gustavo Luiz Schiavo, Hemily Batista-Silva, Giselli Scaini, Emílio Luiz Streck, João Quevedo
D-Galactose (D-gal) chronic administration via intraperitoneal and subcutaneous routes has been used as a model of aging and Alzheimer disease in rodents. Intraperitoneal and subcutaneous administration of D-gal causes memory impairments, a reduction in the neurogenesis of adult mice, an increase in the levels of the amyloid precursor protein and oxidative damage; However, the effects of oral D-gal remain unclear. The aim of this study was to evaluate whether the oral administration of D-gal induces abnormalities within the mitochondrial respiratory chain of rats...
February 24, 2017: Metabolic Brain Disease
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