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https://www.readbyqxmd.com/read/28646794/dexibuprofen-prevents-neurodegeneration-and-cognitive-decline-in-appswe-ps1de9-through-multiple-signaling-pathways
#1
Miren Ettcheto, Elena Sánchez-López, Laura Pons, Oriol Busquets, Jordi Olloquequi, Carlos Beas-Zarate, Merce Pallas, Maria Luisa García, Carme Auladell, Jaume Folch, Antoni Camins
The aim of the present study is to elucidate the neuronal pathways associated to NSAIDs causing a reduction of the risk and progression of Alzheimer's disease. The research was developed administering the active enantiomer of ibuprofen, dexibuprofen (DXI), in order to reduce associated gastric toxicity. DXI was administered from three to six-month-old female APPswe/PS1dE9 mice as a model of familial Alzheimer's disease. DXI treatment reduced the activation of glial cells and the cytokine release involved in the neurodegenerative process, especially TNFα...
June 15, 2017: Redox Biology
https://www.readbyqxmd.com/read/28646457/national-survey-among-radiation-oncology-residents-related-to-their-needs-in-geriatric-oncology
#2
Rachel Leifer, Bonnie Bristow, Martine Puts, Shabbir Alibhai, Xingshan Cao, Barbara-Ann Millar, Meredith Giuliani, Tina Hsu, Maureen Trudeau, Rajin Mehta, Ines Menjak, Mireille Norris, Barbara Liu, Francois Gallant, Ewa Szumacher
Currently, there is no formal curriculum addressing geriatric oncology within Canadian radiation oncology (RO) residency programs. Knowledge related to geriatric medicine may help radiation oncologists modify RT based on frailty status and geriatric considerations. Understanding specific learning needs allow program coordinators to align the current curriculum with residents' geriatric oncology learning needs. The purpose of this study is to determine the geriatric oncology educational needs of the Canadian RO residents and to inform Canadian RO residency training...
June 24, 2017: Journal of Cancer Education: the Official Journal of the American Association for Cancer Education
https://www.readbyqxmd.com/read/28646350/abnormal-rich-club-organization-associated-with-compromised-cognitive-function-in-patients-with-schizophrenia-and-their-unaffected-parents
#3
Xin Zhao, Lin Tian, Jun Yan, Weihua Yue, Hao Yan, Dai Zhang
Schizophrenia is considered to be a disorder of brain connectivity, which might result from a disproportionally impaired rich-club organization. The rich-club is composed of highly interconnected hub regions that play crucial roles in integrating information between different brain regions. Few studies have yet investigated whether the structural rich-club organization is impaired in patients and their first-degree relatives. In this study, we established a weighted network model of white matter connections using diffusion tensor imaging of 19 patients and 39 unaffected parents, 22 young healthy controls for the patients, and 25 old healthy controls for the parents...
June 23, 2017: Neuroscience Bulletin
https://www.readbyqxmd.com/read/28645229/cognitive-function-in-early-psychosis-patients-from-a-lower-middle-income-country
#4
Muhammed Omair Husain, Imran B Chaudhry, Rachel Thomasson, Tayyeba Kiran, Paul Bassett, Muhammad I Husain, Farooq Naeem, Nusrat Husain
OBJECTIVES: To establish evidence of cognitive changes in early psychosis (EP) patients compared to healthy controls (HC) in Pakistan. METHODS: Fifty-one participants with EP were recruited from psychiatric units in Karachi and Rawalpindi, Pakistan and matched with 51 HC. Neurocognitive domains were assessed using standardised neuropsychological tests [the Stroop test, block design, Matrix Reasoning, picture completion, object assembly, oral fluency, memory for design, Coughlan learning task (verbal and visual)]...
June 23, 2017: International Journal of Psychiatry in Clinical Practice
https://www.readbyqxmd.com/read/28645200/prognostic-awareness-prognostic-communication-and-cognitive-function-in-patients-with-malignant-glioma
#5
Eli L Diamond, Holly G Prigerson, Denise C Correa, Anne Reiner, Katherine Panageas, Maria Kryza-Lacombe, Justin Buthorn, Elizabeth C Neil, Alex M Miller, Lisa M DeAngelis, Allison J Applebaum
Background: Malignant glioma (MG) is a devastating neuro-oncologic disease with almost invariably poor prognosis. Prognostic awareness (PA) is the awareness of incurable disease and shortened life-expectancy (LE). Accurate PA is associated with favorable psychological outcomes at the end-of-life (EOL) for patients with cancer, however little is known about PA or prognostic communication in MG. Moreover, research has yet to evaluate the impact of cognitive impairment on PA and preferred forms of communication...
June 22, 2017: Neuro-oncology
https://www.readbyqxmd.com/read/28645156/rem-sleep-behavior-disorder-and-cognitive-impairment-in-parkinson-s-disease
#6
Natalia Jozwiak, Ronald B Postuma, Jacques Montplaisir, Véronique Latreille, Michel Panisset, Sylvain Chouinard, Pierre-Alexandre Bourgouin, Jean-François Gagnon
Study Objectives: REM sleep behavior disorder (RBD) is a parasomnia affecting 33 to 46% of patients with Parkinson's disease (PD). The existence of a unique and specific impaired cognitive profile in PD patients with RBD is still controversial. We extensively assessed cognitive functions to identify whether RBD is associated with more severe cognitive deficits in nondemented patients with PD. Methods: One hundred and sixty-two participants, including 53 PD patients with RBD, 40 PD patients without RBD, and 69 healthy subjects, underwent polysomnography, a neurological assessment, and an extensive neuropsychological exam to assess attention, executive functions, episodic learning and memory, visuospatial abilities, and language...
June 22, 2017: Sleep
https://www.readbyqxmd.com/read/28645092/examining-effectiveness-of-tailorable-computer-assisted-therapy-programmes-for-substance-misuse-programme-usage-and-clinical-outcomes-data-from-breaking-free-online
#7
Sarah Elison, Andrew Jones, Jonathan Ward, Glyn Davies, Stephanie Dugdale
RATIONALE: When evaluating complex, tailorable digital behavioural interventions, additional approaches may be required alongside established methodologies such as randomised controlled trials (RCTs). Research evaluating a computer-assisted therapy (CAT) programme for substance misuse, Breaking Free Online (BFO), is informed by Medical Research Council (MRC) guidance recommending examination of 'mechanisms of action' of individual intervention strategies, which is relevant when evaluating digital interventions with content that may evolve over time...
May 23, 2017: Addictive Behaviors
https://www.readbyqxmd.com/read/28645078/facial-affect-recognition-and-social-functioning-among-individuals-with-varying-degrees-of-schizotypy
#8
Marta Statucka, Deborah J Walder
Facial affect recognition (FAR) accuracy is impaired in schizophrenia and, to a lesser extent, in individuals at-risk for psychosis. Reduced reaction time and negative bias on FAR tasks are also evident in schizophrenia, though few studies have examined these measures in at-risk samples. Social dysfunction is associated with FAR deficits in schizophrenia and at-risk individuals. We aimed to elucidate the nature of FAR and social functioning among individuals from a non-clinical population reporting a range of schizotypal traits (i...
June 15, 2017: Psychiatry Research
https://www.readbyqxmd.com/read/28644490/potentiating-role-of-copper-on-spatial-memory-deficit-induced-by-beta-amyloid-and-evaluation-of-mitochondrial-function-markers-in-the-hippocampus-of-rats
#9
Ladan Behzadfar, Mohammad Abdollahi, Omid Sabzevari, Rohollah Hosseini, Ahmad Salimi, Parvaneh Naserzadeh, Mohammad Sharifzadeh, Jalal Pourahmad
Mounting evidence suggests that copper, a crucial element in normal brain function, plays an important role in the etiology of Alzheimer's disease, which is known as a neurodegenerative mitochondrial disorder. However, the precise mechanisms of its effects on cognitive and mitochondrial functions through the CNS have not been thoroughly recognized yet. In this study, we aimed to investigate the long-term (3-week) effects of copper sulfate (50, 100 and 200 mg kg(-1) day(-1)) exposure on learning and memory as well as on mitochondrial function in the hippocampus of rats in the presence and absence of beta amyloid (1 μg μl(-1) per side) intrahippocampally (IH)...
June 23, 2017: Metallomics: Integrated Biometal Science
https://www.readbyqxmd.com/read/28643843/perisylvian-including-insular-childhood-epilepsy-presurgical-workup-and-surgical-outcome
#10
Elena Freri, Sara Matricardi, Francesca Gozzo, Massimo Cossu, Tiziana Granata, Laura Tassi
OBJECTIVE: To report the presurgical workup, surgical procedures, and outcomes in a series of pediatric patients with drug-resistant epilepsy involving the perisylvian/insular regions. METHODS: We retrospectively assessed 16 pediatric patients affected by drug-resistant focal epilepsy involving perisylvian/insular regions, who consecutively underwent tailored resective surgery. All patients underwent a detailed presurgical workup, which included the analysis of the anatomoelectroclinical correlations with scalp electroencephalography (EEG) and/or with stereo-electroencephalography (SEEG), brain magnetic resonance imaging (MRI), and comprehensive cognitive and neuropsychological evaluations...
June 23, 2017: Epilepsia
https://www.readbyqxmd.com/read/28643537/a-diffusion-weighted-imaging-study-of-basal-ganglia-in-schizophrenia
#11
Giuseppe Delvecchio, Alessandro Pigoni, Cinzia Perlini, Marco Barillari, Amelia Versace, Mirella Ruggeri, A Carlo Altamura, Marcella Bellani, Paolo Brambilla
OBJECTIVES: Several magnetic resonance imaging (MRI) studies provided evidence of selective brain abnormalities in schizophrenia, both in cortical and subcortical structures. Basal ganglia are of particular interest, given not only the high concentration of dopaminergic neurons and receptors, but also for their crucial role in cognitive functions, commonly impaired in schizophrenia. To date, very few studies explored basal ganglia using diffusion imaging, which is sensitive to microstructural organization in brain tissues...
June 23, 2017: International Journal of Psychiatry in Clinical Practice
https://www.readbyqxmd.com/read/28643520/main-plant-extracts-active-properties-effective-on-scopolamine-induced-memory-loss
#12
Ioana-Miruna Balmus, Alin Ciobica
Alzheimer's disease leads to progressive cognitive function loss, which may impair both intellectual capacities and psychosocial aspects. Although the current knowledge points to a multifactorial character of Alzheimer's disease, the most issued pathological hypothesis remains the cholinergic theory. The main animal model used in cholinergic theory research is the scopolamine-induced memory loss model. Although, in some cases, a temporary symptomatic relief can be obtained through targeting the cholinergic or glutamatergic neurotransmitter systems, no current treatment is able to stop or slow cognitive impairment...
January 1, 2017: American Journal of Alzheimer's Disease and Other Dementias
https://www.readbyqxmd.com/read/28642938/correlation-weighted-sparse-group-representation-for-brain-network-construction-in-mci-classification
#13
Renping Yu, Han Zhang, Le An, Xiaobo Chen, Zhihui Wei, Dinggang Shen
Analysis of brain functional connectivity network (BFCN) has shown great potential in understanding brain functions and identifying biomarkers for neurological and psychiatric disorders, such as Alzheimer's disease and its early stage, mild cognitive impairment (MCI). In all these applications, the accurate construction of biologically meaningful brain network is critical. Due to the sparse nature of the brain network, sparse learning has been widely used for complex BFCN construction. However, the conventional l1-norm penalty in the sparse learning equally penalizes each edge (or link) of the brain network, which ignores the link strength and could remove strong links in the brain network...
October 2016: Medical Image Computing and Computer-assisted Intervention: MICCAI ..
https://www.readbyqxmd.com/read/28642696/how-accumulated-real-life-stress-experience-and-cognitive-speed-interact-on-decision-making-processes
#14
Eva Friedel, Miriam Sebold, Sören Kuitunen-Paul, Stephan Nebe, Ilya M Veer, Ulrich S Zimmermann, Florian Schlagenhauf, Michael N Smolka, Michael Rapp, Henrik Walter, Andreas Heinz
Rationale: Advances in neurocomputational modeling suggest that valuation systems for goal-directed (deliberative) on one side, and habitual (automatic) decision-making on the other side may rely on distinct computational strategies for reinforcement learning, namely model-free vs. model-based learning. As a key theoretical difference, the model-based system strongly demands cognitive functions to plan actions prospectively based on an internal cognitive model of the environment, whereas valuation in the model-free system relies on rather simple learning rules from operant conditioning to retrospectively associate actions with their outcomes and is thus cognitively less demanding...
2017: Frontiers in Human Neuroscience
https://www.readbyqxmd.com/read/28642096/pine-needle-extract-prevents-hippocampal-memory-impairment-in-acute-restraint-stress-mouse-model
#15
Jin-Seok Lee, Hyeong-Geug Kim, Hye-Won Lee, Won-Yong Kim, Yo-Chan Ahn, Chang-Gue Son
ETHNOPHARMACOLOGICAL RELEVANCE: The Pinus densiflora leaf has been traditionally used to treat mental health disorders as a traditional Chinese medicine. Here we examined the ethnopharmacological relevance of pine needle on memory impairment caused by stress. AIM OF THE STUDY: To elucidate the possible modulatory actions of 30% ethanolic pine needle extract (PNE) on stress-induced hippocampal excitotoxicity, we adopted an acute restraint stress mouse model. MATERIALS AND METHODS: Mice were orally administered with PNE (25, 50, or 100mg/kg) or ascorbic acid (100mg/kg) for 9 days, and were then subjected to restraint stress (6h/day) for 3 days (from experimental day 7 to 9)...
June 19, 2017: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/28642080/impact-of-juvenile-chronic-stress-on-adult-cortico-accumbal-function-implications-for-cognition-and-addiction
#16
REVIEW
Michael J Watt, Matthew A Weber, Shaydel R Davies, Gina L Forster
Repeated exposure to stress during childhood is associated with increased risk for neuropsychiatric illness, substance use disorders and other behavioral problems in adulthood. However, it is not clear how chronic childhood stress can lead to emergence of such a wide range of symptoms and disorders in later life. One possible explanation lies in stress-induced disruption to the development of specific brain regions associated with executive function and reward processing, deficits in which are common to the disorders promoted by childhood stress...
June 19, 2017: Progress in Neuro-psychopharmacology & Biological Psychiatry
https://www.readbyqxmd.com/read/28641817/-preventing-violence-in-schizophrenia-with-cognitive-remediation
#17
C Darmedru, C Demily, N Franck
OBJECTIVES: The association between schizophrenia and violence represents an important issue in psychiatry. Often highly publicized, violent acts raise the question of their detection, prevention, management and treatment. There is no single, direct and exclusive link between aggressiveness and the underlying psychiatric disorder. On the contrary, the processes underlying this violence are multiple and interlinked. In addition to static and dynamic risk factors, cognitive deficits play an important role in the genesis and maintenance of violent and aggressive behavior...
June 19, 2017: L'Encéphale
https://www.readbyqxmd.com/read/28641679/normobaric-hypoxia-and-submaximal-exercise-effects-on-running-memory-and-mood-state-in-women
#18
Yongsuk Seo, Hayden D Gerhart, Jon Stavres, Curtis Fennell, Shane Draper, Ellen L Glickman
BACKGROUND: An acute bout of exercise can improve cognitive function in normoxic and hypoxic conditions. However, limited research supports the improvement of cognitive function and mood state in women. The purpose of this study was to examine the effects of hypoxia and exercise on working memory and mood state in women. METHODS: There were 15 healthy women (age = 22 ± 2 yr) who completed the Automated Neuropsychological Assessment Metrics-4th Edition (ANAM), including the Running Memory Continuous Performance Task (RMCPT) and Total Mood Disturbance (TMD) in normoxia (21% O2), at rest in normoxia and hypoxia (12...
July 1, 2017: Aerospace Medicine and Human Performance
https://www.readbyqxmd.com/read/28641593/preliminary-evidence-for-an-association-between-the-composition-of-the-gut-microbiome-and-cognitive-function-in-neurologically-healthy-older-adults
#19
Lisa Manderino, Ian Carroll, M Andrea Azcarate-Peril, Amber Rochette, Leslie Heinberg, Christine Peat, Kristine Steffen, James Mitchell, John Gunstad
OBJECTIVES: Dysbiosis of the gut microbiome is implicated in numerous human health conditions. Animal studies have linked microbiome disruption to changes in cognitive functioning, although no study has examined this possibility in neurologically healthy older adults. METHODS: Participants were 43 community-dwelling older adults (50-85 years) that completed a brief cognitive test battery and provided stool samples for gut microbiome sequencing. Participants performing≥1 SD below normative performance on two or more tests were compared to persons with one or fewer impaired scores...
June 23, 2017: Journal of the International Neuropsychological Society: JINS
https://www.readbyqxmd.com/read/28641378/staff-perceptions-of-key-factors-guiding-nursing-home-search-and-selection-within-the-veterans-health-administration
#20
Edward Alan Miller, Stefanie Gidmark, Emily Gadbois, James L Rudolph, Orna Intrator
Background and Objectives: Veterans enter nursing homes (NHs) for short-term postacute, rehabilitation, respite, or end-of-life care. They also enter NHs on a long-term basis due to frailty, disability, functional deficits, and cognitive impairment. Little is known about how a particular NH is chosen once the decision to enter a NH has been made. This study identified VA staff perceptions of the key factors influencing the search and selection of NHs within the Veterans Health Administration (VHA)...
June 21, 2017: Gerontologist
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