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https://www.readbyqxmd.com/read/28641168/aicardi-syndrome-and-cognitive-abilities-a-report-of-five-cases
#1
Mia Tuft, Ylva Østby, Karl O Nakken, Caroline Lund
Aicardi syndrome is a rare neurodevelopmental disorder with agenesis of corpus callosum, chorioretinal lacunae, and infantile spasms as the main features. The outcome is in general severe, with poor cognitive development and difficult-to-treat epilepsy. In this study, we assessed the level of cognitive function of five girls with Aicardi syndrome, using normed population based tests and questionnaires. Their cognitive abilities varied from mild to profound intellectual disabilities. The more severe the epilepsy, the poorer were the cognitive skills...
June 19, 2017: Epilepsy & Behavior: E&B
https://www.readbyqxmd.com/read/28641136/age-exacerbates-abnormal-protein-expression-in-a-mouse-model-of-down-syndrome
#2
Md Mahiuddin Ahmed, Aaron Block, Suhong Tong, Muriel T Davisson, Katheleen J Gardiner
The Ts65Dn is a popular mouse model of Down syndrome (DS). It displays DS-relevant features of learning/memory deficits and age-related loss of functional markers in basal forebrain cholinergic neurons. Here we describe protein expression abnormalities in brain regions of 12-month-old male Ts65Dn mice. We show that the magnitudes of abnormalities of human chromosome 21 and non-human chromosome 21 orthologous proteins are greater at 12 months than at ∼6 months. Age-related exacerbations involve the number of components affected in the mechanistic target of rapamycin pathway, the levels of components of the mitogen-activated protein kinase pathway, and proteins associated with Alzheimer's disease...
May 10, 2017: Neurobiology of Aging
https://www.readbyqxmd.com/read/28637289/the-importance-of-knowing-when-you-don-t-remember-neural-signaling-of-retrieval-failure-predicts-memory-improvement-over-time
#3
Yana Fandakova, Silvia A Bunge, Carter Wendelken, Peter Desautels, Lauren Hunter, Joshua K Lee, Simona Ghetti
Just as the ability to remember prior events is critical for guiding our decision-making, so too is the ability to recognize the limitations of our memory. Indeed, we hypothesize that neural signaling of retrieval failure promotes more accurate memory judgments over time. To test this hypothesis, we collected longitudinal functional magnetic resonance imaging data from 8 to 9 years olds, 10 to 12 years olds, and adults, with two time points spaced approximately 1.4 years apart (198 scan sessions in total)...
November 23, 2016: Cerebral Cortex
https://www.readbyqxmd.com/read/28637246/effect-of-psilocybin-on-empathy-and-moral-decision-making
#4
Thomas Pokorny, Katrin H Preller, Michael Kometer, Isabel Dziobek, Franz X Vollenweider
Background: Impaired empathic abilities lead to severe negative social consequences and influence the development and treatment of several psychiatric disorders. Furthermore, empathy has been shown to play a crucial role in moral and prosocial behaviour. Although the serotonin (5-HT) system has been implicated in modulating empathy and moral behaviour, the relative contribution of the various 5-HT receptor subtypes is still unknown. Methods: We investigated the acute effect of psilocybin (0...
June 16, 2017: International Journal of Neuropsychopharmacology
https://www.readbyqxmd.com/read/28637029/blue-enriched-morning-light-as-a-countermeasure-to-light-at-the-wrong-time-effects-on-cognition-sleepiness-sleep-and-circadian-phase
#5
Mirjam Münch, Claudia Nowozin, Johannes Regente, Frederik Bes, Jan De Zeeuw, Sven Hädel, Amely Wahnschaffe, Dieter Kunz
Light during the day and darkness at night are crucial factors for proper entrainment of the human circadian system to the solar 24-h day. However, modern life and work styles have led to much more time spent indoors, often with lower daytime and higher evening/nighttime light intensity from electrical lighting than outdoors. Whether this has long-term consequences for human health is being currently investigated. We tested if bright blue-enriched morning light over several days could counteract the detrimental effects of inadequate daytime and evening lighting...
June 22, 2017: Neuropsychobiology
https://www.readbyqxmd.com/read/28636694/placebo-response-and-practice-effects-in-schizophrenia-cognition-trials
#6
Richard S E Keefe, Vicki G Davis, Philip D Harvey, Alexandra S Atkins, George M Haig, Owen Hagino, Stephen Marder, Dana C Hilt, Daniel Umbricht
Importance: Patients' previous experience with performance-based cognitive tests in clinical trials for cognitive impairment associated with schizophrenia can create practice-related improvements. Placebo-controlled trials for cognitive impairment associated with schizophrenia are at risk for these practice effects, which can be difficult to distinguish from placebo effects. Objectives: To conduct a systematic evaluation of the magnitude of practice effects on the Measurement and Treatment Research to Improve Cognition in Schizophrenia Consensus Cognitive Battery (MCCB) in cognitive impairment associated with schizophrenia and to examine which demographic, clinical, and cognitive characteristics were associated with improvement in placebo conditions...
June 21, 2017: JAMA Psychiatry
https://www.readbyqxmd.com/read/28636419/poison-or-prevention-understanding-the-linkages-between-vaccine-negative-individuals-knowledge-deficiency-motivations-and-active-communication-behaviors
#7
Arunima Krishna
The last few decades have seen growing concerns among parents regarding the safety of childhood vaccines, arguably leading to the rise of the anti-vaccine movement. This study is an effort to understand situational and cross-situational factors that influence individuals' negative attitudes toward vaccines, referred to as vaccine negativity. In doing so, this study elucidated how situational and cross-situational factors influence vaccine negativity. Specifically, this study tested how knowledge deficiency, or acceptance of scientifically inaccurate data about vaccines, and institutional trust influenced negative attitudes toward vaccines...
June 21, 2017: Health Communication
https://www.readbyqxmd.com/read/28636413/tea-consumption-is-associated-with-cognitive-impairment-in-older-chinese-adults
#8
Ying-Jie Gu, Chun-Hong He, Su Li, Shu-Yi Zhang, Sheng-Yu Duan, Hong-Peng Sun, Yue-Ping Shen, Yong Xu, Jie-Yun Yin, Chen-Wei Pan
OBJECTIVE: To explore the association between tea consumption and cognitive impairment (CoI). METHODS: 4579 adults (≥60 years) from the Weitang Geratric Diseases Study were assessed for characteristics of tea consumption and cognitive function by administering questionnaires and the Abbreviated Mental Test (AMT), respectively. We divided the subjects into normal cognitive function group (AMT score ≥8) and CoI group (AMT score ≤7).   The association between tea consumption and risk of CoI was determined by logistic regression models...
June 21, 2017: Aging & Mental Health
https://www.readbyqxmd.com/read/28636141/binocular-facilitation-of-cone-specific-visual-evoked-potentials-in-colour-deficiency
#9
Jeff Rabin, Andrew Kryder, Dan Lam
BACKGROUND: Neural compensatory mechanisms have been proposed, which preserve the binocular visual field in glaucoma, as well as cognition in Alzheimer's disease and motor function in Parkinson's disease. It is conceivable that comparable mechanisms operate to preserve function in congenital and/or dystrophic disease. In hereditary colour vision deficiency (CVD), we observed significant facilitation in the amplitude of the binocular cone-specific visual evoked potential (VEP) compared to the monocular amplitude for the cone type corresponding to the CVD...
June 21, 2017: Clinical & Experimental Optometry: Journal of the Australian Optometrical Association
https://www.readbyqxmd.com/read/28636060/developing-mobile-clinical-decision-support-for-nursing-home-staff-assessment-of-urinary-tract-infection-using-goal-directed-design
#10
Wallace Jones, Cynthia Drake, David Mack, Blaine Reeder, Barbara Trautner, Heidi Wald
BACKGROUND: Unique characteristics of nursing homes (NHs) contribute to high rates of inappropriate antibiotic use for asymptomatic bacteriuria (ASB), a benign condition. A mobile clinical decision support system (CDSS) may support NH staff in differentiating urinary tract infections (UTI) from ASB and reducing antibiotic days. OBJECTIVES: We used Goal-Directed Design to: 1) Characterize information needs for UTI identification and management in NHs; 2) Develop UTI Decide, a mobile CDSS prototype informed by personas and scenarios of use constructed from Aim 1 findings; 3) Evaluate the UTI Decide prototype with NH staff...
June 20, 2017: Applied Clinical Informatics
https://www.readbyqxmd.com/read/28635664/adolescent-exposure-to-the-synthetic-cannabinoid-win-55212-2-modifies-cocaine-withdrawal-symptoms-in-adult-mice
#11
María A Aguilar, Juan Carlos Ledesma, Marta Rodríguez-Arias, Carles Penalva, Carmen Manzanedo, José Miñarro, M Carmen Arenas
Chronic cannabinoid consumption is an increasingly common behavior among teenagers and has been shown to cause long-lasting neurobehavioral alterations. Besides, it has been demonstrated that cocaine addiction in adulthood is highly correlated with cannabis abuse during adolescence. Cocaine consumption and subsequent abstinence from it can cause psychiatric symptoms, such as psychosis, cognitive impairment, anxiety, and depression. The aim of the present research was to study the consequences of adolescent exposure to cannabis on the psychiatric-like effects promoted by cocaine withdrawal in adult mice...
June 21, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28635503/practical-guidelines-to-minimise-language-and-cognitive-confounds-in-the-diagnosis-of-capd-a-brief-tutorial
#12
Gail D Chermak, Doris-Eva Bamiou, Vasiliki Vivian Iliadou, Frank E Musiek
OBJECTIVE: To provide audiologists with strategies to minimise confounding cognitive and language processing variables and accurately diagnose central auditory processing disorder (CAPD). DESIGN: Tutorial. STUDY SAMPLE: None. RESULTS: Strategies are reviewed to minimise confounding cognitive and language processing variables and accurately diagnose CAPD. CONCLUSIONS: Differential diagnosis is exceedingly important and can be quite challenging...
February 28, 2017: International Journal of Audiology
https://www.readbyqxmd.com/read/28635158/prepregnancy-overweight-and-obesity-are-associated-with-impaired-child-neurodevelopment
#13
Elizabeth Marie Widen, Linda Gross Kahn, Piera Cirillo, Barbara Cohn, Katrina Lynn Kezios, Pam Factor-Litvak
The authors examined the relationship of prepregnancy body mass index (BMI) and gestational weight gain (GWG) with child neurodevelopment. Mother-child dyads were a subgroup (n = 2,084) of the Child Health and Development Studies from the Oakland, California, area enrolled during pregnancy from 1959 to 1966 and followed at child age 9 years. Linear regression was used to examine associations between prepregnancy BMI, GWG, and standardized Peabody Picture Vocabulary Test and Raven Progressive Matrices scores and to evaluate effect modification of GWG by prepregnancy BMI...
June 21, 2017: Maternal & Child Nutrition
https://www.readbyqxmd.com/read/28635121/exposure-to-sodium-valproate-during-pregnancy-facial-features-and-signs-of-autism
#14
Rachel Stadelmaier, Hanah Nasri, Curtis K Deutsch, Margaret Bauman, Anne Hunt, Christopher J Stodgell, Jane Adams, Lewis B Holmes
BACKGROUND: Valproic acid (VPA) is the most teratogenic anticonvulsant drug in clinical use today. Children exposed prenatally to VPA have previously been shown to have dysmorphic craniofacial features, identified subjectively but not by anthropometric methods. Exposure to VPA has also been associated with an increased frequency of autism spectrum disorder (ASD). An increased cephalic index (the ratio of the cranial lateral width to the cranial anterior-posterior length) has been observed in children with ASD...
June 21, 2017: Birth defects research
https://www.readbyqxmd.com/read/28634548/decline-in-memory-visuospatial-ability-and-crystalized-cognitive-abilities-in-older-adults-normative-aging-or-terminal-decline
#15
R Bendayan, A M Piccinin, S M Hofer, D Cadar, B Johansson, G Muniz-Terrera
The aim of this study is to explore the pattern of change in multiple measures of cognitive abilities in a sample of oldest-old adults, comparing two different time metrics (chronological age and time to death) and therefore examining both underlying conceptual assumptions (age-related change and terminal decline). Moreover, the association with individual characteristics as sex, education, and dementia diagnosis was also examined. Measures of cognitive status (Mini-Mental State Examination and the Swedish Clock Test) and tests of crystallized (knowledge and synonyms), memory (verbal memory, nonverbal long-term memory, recognition and correspondence, and short-term memory), and visuospatial ability were included...
2017: Journal of Aging Research
https://www.readbyqxmd.com/read/28634459/cognitive-correlates-of-different-mentalizing-abilities-in-individuals-with-high-and-low-trait-schizotypy-findings-from-an-extreme-group-design
#16
Krisztina Kocsis-Bogár, Simone Kotulla, Susanne Maier, Martin Voracek, Kristina Hennig-Fast
Mentalizing or Theory of Mind (ToM) deficits in schizophrenia have been studied to great extent, but studies involving samples of trait schizotypy yield ambiguous results. Executive functions like cognitive inhibition, cognitive flexibility, and agency are all prerequisites of mentalizing, and it is assumed that the impairment of these functions contributes to ToM deficits in schizophrenia. Whether these impairments influence the ToM performance of people with high trait schizotypy remains unclear. Although impaired self-agency has repeatedly been identified in people with schizotypy, its role in mentalizing is yet to be investigated...
2017: Frontiers in Psychology
https://www.readbyqxmd.com/read/28634451/berberine-ameliorates-diabetes-associated-cognitive-decline-through-modulation-of-aberrant-inflammation-response-and-insulin-signaling-pathway-in-dm-rats
#17
Qingjie Chen, Ran Mo, Ninghua Wu, Xin Zou, Cai Shi, Jing Gong, Jingbin Li, Ke Fang, Dingkun Wang, Deshen Yang, Kaifu Wang, Juan Chen
Background: Memory-impairment was one of the common characteristics in patients with diabetes mellitus. The release of chronic inflammation mediators and insulin resistance in diabetic brain gave rise to the generation of toxic factor Aβ42 which was the marker of Alzheimer's disease. In addition, the impairment of memory in diabetes mellitus was also correlated predominantly with uptake/metabolism of glucose in medial prefrontal cortex (mPFC). Previously, anti-inflammation and hypoglycemic effects of berberine (BBr) have been described in peripheral tissues...
2017: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/28634445/antioxidant-treatment-with-n-acetyl-cysteine-prevents-the-development-of-cognitive-and-social-behavioral-deficits-that-result-from-perinatal-ketamine-treatment
#18
Aarron Phensy, Hasmik E Duzdabanian, Samantha Brewer, Anurag Panjabi, Christopher Driskill, Annuska Berz, George Peng, Sven Kroener
Alterations of the normal redox state can be found in all stages of schizophrenia, suggesting a key role for oxidative stress in the etiology and maintenance of the disease. Pharmacological blockade of N-methyl-D-aspartic acid (NMDA) receptors can disrupt natural antioxidant defense systems and induce schizophrenia-like behaviors in animals and healthy human subjects. Perinatal administration of the NMDA receptor (NMDAR) antagonist ketamine produces persistent behavioral deficits in adult mice which mimic a range of positive, negative, and cognitive symptoms that characterize schizophrenia...
2017: Frontiers in Behavioral Neuroscience
https://www.readbyqxmd.com/read/28634441/roles-of-pannexin-1-channels-in-inflammatory-response-through-the-tlrs-nf-kappa-b-signaling-pathway-following-experimental-subarachnoid-hemorrhage-in-rats
#19
Ling-Yun Wu, Zhen-Nan Ye, Chen-Hui Zhou, Chun-Xi Wang, Guang-Bin Xie, Xiang-Sheng Zhang, Yong-Yue Gao, Zi-Huan Zhang, Meng-Liang Zhou, Zong Zhuang, Jing-Peng Liu, Chun-Hua Hang, Ji-Xin Shi
Background: Accumulating evidence suggests that neuroinflammation plays a critical role in early brain injury after subarachnoid hemorrhage (SAH). Pannexin-1 channels, as a member of gap junction proteins located on the plasma membrane, releases ATP, ions, second messengers, neurotransmitters, and molecules up to 1 kD into the extracellular space, when activated. Previous studies identified that the opening of Pannexin-1 channels is essential for cellular migration, apoptosis and especially inflammation, but its effects on inflammatory response in SAH model have not been explored yet...
2017: Frontiers in Molecular Neuroscience
https://www.readbyqxmd.com/read/28634383/discrepancy-between-objective-and-subjective-cognition-in-adults-with-major-depressive-disorder
#20
Manit Srisurapanont, Sirijit Suttajit, Kanokkwan Eurviriyanukul, Prirada Varnado
This study aimed to determine: i) the correlation between objective and subjective cognition, ii) the correlates of objective and subjective cognition and iii) the predictors of discrepancy between objective and subjective cognition. Participants were non-elderly patients with major depressive disorder (MDD). We assessed subjective cognition using the Perceived Deficit Questionnaire for Depression (PDQ-D) and objective cognition using Face I and Face II tests of the Wechsler Memory Scale, 3rd edition and Digit Span and Matrix Reasoning tests of the Wechsler Intelligence Scale for Adults, 3rd edition...
June 20, 2017: Scientific Reports
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