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https://www.readbyqxmd.com/read/28425730/the-relation-of-anxiety-and-cognition-in-parkinson-s-disease
#1
Gretchen O Reynolds, Kristine K Hanna, Sandy Neargarder, Alice Cronin-Golomb
OBJECTIVE: Parkinson's disease (PD) has long been conceptualized as a motor disorder, but nonmotor symptoms also manifest in the disease and significantly reduce quality of life. Anxiety and cognitive dysfunction are prevalent nonmotor symptoms, even in early disease stages, but the relation between these symptoms remains poorly understood. We examined self-reported anxiety and neurocognitive function, indexed by measures of executive function (set-shifting and phonemic fluency), categorical fluency, and attention/working memory...
April 20, 2017: Neuropsychology
https://www.readbyqxmd.com/read/28424512/human-umbilical-cord-plasma-proteins-revitalize-hippocampal-function-in-aged-mice
#2
Joseph M Castellano, Kira I Mosher, Rachelle J Abbey, Alisha A McBride, Michelle L James, Daniela Berdnik, Jadon C Shen, Bende Zou, Xinmin S Xie, Martha Tingle, Izumi V Hinkson, Martin S Angst, Tony Wyss-Coray
Ageing drives changes in neuronal and cognitive function, the decline of which is a major feature of many neurological disorders. The hippocampus, a brain region subserving roles of spatial and episodic memory and learning, is sensitive to the detrimental effects of ageing at morphological and molecular levels. With advancing age, synapses in various hippocampal subfields exhibit impaired long-term potentiation, an electrophysiological correlate of learning and memory. At the molecular level, immediate early genes are among the synaptic plasticity genes that are both induced by long-term potentiation and downregulated in the aged brain...
April 19, 2017: Nature
https://www.readbyqxmd.com/read/28422636/impact-of-pans-and-pandas-exacerbations-on-occupational-performance-a-mixed-methods-study
#3
Janice Trigilio Tona, Sutanuka Bhattacharjya, Denise Calaprice
OBJECTIVE: Pediatric acute-onset neuropsychiatric syndrome (PANS) includes pediatric autoimmune neuropsychiatric disorders associated with streptococcal infections and involves sudden-onset neuropsychiatric symptoms, including obsessions, compulsions, sensory difficulties, and dysgraphia after infection or other triggers. Our objective was to identify problems with areas of occupation, body functions, and performance skills during exacerbations. METHOD: In this online retrospective study, based on the Occupational Therapy Practice Framework: Domain and Process (2nd ed...
May 2017: American Journal of Occupational Therapy: Official Publication of the American Occupational Therapy Association
https://www.readbyqxmd.com/read/28422371/effects-of-m1-and-m4-activation-on-excitatory-synaptic-transmission-in-ca1
#4
Catherine Thorn, Michael Popiolek, Eda Stark, Jeremy Edgerton
Hippocampal networks are particularly susceptible to dysfunction in many neurodegenerative diseases and neuropsychiatric disorders including Alzheimer's disease, Lewy body dementia, and schizophrenia. CA1, a major output region of the hippocampus, receives glutamatergic input from both hippocampal CA3 and entorhinal cortex, via the Schaffer collateral (SC) and temporoammonic (TA) pathways, respectively. SC and TA inputs to CA1 are thought to be differentially involved in the retrieval of previously stored memories versus the encoding of novel information, and switching between these two crucial hippocampal functions is thought to critically depend on acetylcholine (ACh) acting at muscarinic receptors...
April 19, 2017: Hippocampus
https://www.readbyqxmd.com/read/28421717/cognitive-profiles-in-euthymic-patients-with-bipolar-disorders-results-from-the-face-bd-cohort
#5
Paul Roux, Aurélie Raust, Anne Sophie Cannavo, Valérie Aubin, Bruno Aouizerate, Jean-Michel Azorin, Frank Bellivier, Raoul Belzeaux, Thierry Bougerol, Iréna Cussac, Philippe Courtet, Bruno Etain, Sébastien Gard, Sophie Job, Jean-Pierre Kahn, Marion Leboyer, Emilie Olié, Chantal Henry, Christine Passerieux
OBJECTIVES: Although cognitive deficits are a well-established feature of bipolar disorders (BD), even during periods of euthymia, little is known about cognitive phenotype heterogeneity among patients with BD. METHODS: We investigated neuropsychological performance in 258 euthymic patients with BD recruited via the French network of expert centers for BD. We used a test battery assessing six domains of cognition. Hierarchical cluster analysis of the cross-sectional data was used to determine the optimal number of subgroups and to assign each patient to a specific cognitive cluster...
April 19, 2017: Bipolar Disorders
https://www.readbyqxmd.com/read/28421677/mindfulness-and-its-efficacy-for-psychological-and-biological-responses-in-women-with-breast-cancer
#6
Elisabeth Kenne Sarenmalm, Lena B Mårtensson, Bengt A Andersson, Per Karlsson, Ingrid Bergh
Many breast cancer survivors have to deal with a variety of psychological and physiological sequelae including impaired immune responses. The primary purpose of this randomized controlled trial was to determine the efficacy of a mindfulness-based stress reduction (MBSR) intervention for mood disorders in women with breast cancer. Secondary outcomes were symptom experience, health status, coping capacity, mindfulness, posttraumatic growth, and immune status. This RTC assigned 166 women with breast cancer to one of three groups: MBSR (8 weekly group sessions of MBSR), active controls (self-instructing MBSR) and non-MBSR...
April 18, 2017: Cancer Medicine
https://www.readbyqxmd.com/read/28421673/endothelial-erbb4-deficit-induces-alterations-in-exploratory-behavior-and-brain-energy-metabolism-in-mice
#7
Gang Wu, Xiu-Xiu Liu, Nan-Nan Lu, Qi-Bing Liu, Yun Tian, Wei-Feng Ye, Guo-Jun Jiang, Rong-Rong Tao, Feng Han, Ying-Mei Lu
AIMS: The receptor tyrosine kinase ErbB4 is present throughout the primate brain and has a distinct functional profile. In this study, we investigate the potential role of endothelial ErbB4 receptor signaling in the brain. RESULTS: Here, we show that the endothelial cell-specific deletion of ErbB4 induces decreased exploratory behavior in adult mice. However, the water maze task for spatial memory and the memory reconsolidation test reveal no changes; additionally, we observe no impairment in CaMKII phosphorylation in Cdh5Cre;ErbB4(f/f) mice, which indicates that the endothelial ErbB4 deficit leads to decreased exploratory activity rather than direct memory deficits...
April 18, 2017: CNS Neuroscience & Therapeutics
https://www.readbyqxmd.com/read/28420985/mapping-dorsal-and-ventral-caudate-in-older-adults-method-and-validation
#8
Haiqing Huang, Peter T Nguyen, Nadine A Schwab, Jared J Tanner, Catherine C Price, Mingzhou Ding
The caudate nucleus plays important roles in cognition and affect. Depending on associated connectivity and function, the caudate can be further divided into dorsal and ventral aspects. Dorsal caudate, highly connected to dorsolateral prefrontal cortex (DLPFC), is implicated in executive function and working memory; ventral caudate, more interconnected with the limbic system, is implicated in affective functions such as pain processing. Clinically, certain brain disorders are known to differentially impact dorsal and ventral caudate...
2017: Frontiers in Aging Neuroscience
https://www.readbyqxmd.com/read/28419772/visual-memory-uniquely-predicts-anhedonia-in-schizophrenia-but-not-bipolar-disorder
#9
Anjuli S Bodapati, Lisanne M Jenkins, Rajiv P Sharma, Cherise Rosen
OBJECTIVE: Deficits in memory have been suggested as an influential mechanism of anhedonia, because while pleasant experiences may be enjoyed in-the-moment, the cognitive processes involved in reporting anticipated or remembered enjoyable experiences is thought to be impaired. This study will determine whether any aspects of memory, including visual memory, verbal memory or working memory, are significantly predictive of anhedonia in a sample of schizophrenia, psychotic bipolar disorder and healthy controls...
April 17, 2017: Journal of Neuropsychology
https://www.readbyqxmd.com/read/28419641/neural-correlates-of-experimental-trauma-memory-retrieval
#10
Geraldine A Gvozdanovic, Philipp Stämpfli, Erich Seifritz, Björn Rasch
OBJECTIVES: Traumatic memories such as intrusions and flashbacks play a major role in the development and maintenance of post-traumatic stress disorder (PTSD). A thorough understanding of the neural mechanisms underlying traumatic memories is indispensable for precise diagnosis, for personalized treatment and prevention. In particular, the identification of early neural predictor variables for intrusion development shortly after trauma exposure requires detailed investigation. EXPERIMENTAL DESIGN: Here, we examined the neural correlates of early experimental trauma memory retrieval in a traumatic film paradigm in 42 young healthy females, using both implicit and explicit retrieval tasks...
April 17, 2017: Human Brain Mapping
https://www.readbyqxmd.com/read/28419473/translating-the-cognitive-model-of-ptsd-to-the-treatment-of-very-young-children-a-single-case-study-of-an-8-year-old-motor-vehicle-accident-survivor
#11
Benjamin Goodall, Isobel Chadwick, Anna McKinnon, Aliza Werner-Seidler, Richard Meiser-Stedman, Patrick Smith, Tim Dalgleish
Posttraumatic stress disorder (PTSD) is a clinical condition that occurs after a discrete traumatic event, such as an accident or assault. Research into PTSD has primarily been adult-focused; however, there is a growing body of evidence evaluating the theory and treatment of PTSD in young children. Consequently, cognitive behavior therapy (CBT) interventions for PTSD in youth have been developed that focus on 3 core components of the cognitive model-a disorganized memory of the trauma, maladaptive appraisals of the trauma and its effects (meanings), and dysfunctional coping mechanisms (management)...
May 2017: Journal of Clinical Psychology
https://www.readbyqxmd.com/read/28419177/interpreting-patterns-of-low-scores-on-the-nih-toolbox-cognition-battery
#12
James A Holdnack, David S Tulsky, Brian L Brooks, Jerry Slotkin, Richard Gershon, Allen W Heinemann, Grant L Iverson
Introduction: The National Institutes of Health Toolbox for Assessment of Neurological and Behavioral Function Cognition Battery is comprised of seven cognitive tests, including two tests measuring crystallized cognitive ability (i.e., vocabulary and reading) and five tests measuring fluid cognitive functioning (i.e., working memory, memory, speed of processing, and executive functioning). This study presents comprehensive base rate tables for the frequency of low scores in adults and older adults from the normative sample...
April 17, 2017: Archives of Clinical Neuropsychology: the Official Journal of the National Academy of Neuropsychologists
https://www.readbyqxmd.com/read/28416813/brain-derived-neurotrophic-factor-val-66-met-genotype-and-ovarian-steroids-interactively-modulate-working-memory-related-hippocampal-function-in-women-a-multimodal-neuroimaging-study
#13
S-M Wei, E B Baller, P D Kohn, J S Kippenhan, B Kolachana, S J Soldin, D R Rubinow, P J Schmidt, K F Berman
Preclinical evidence suggests that the actions of ovarian steroid hormones and brain-derived neurotrophic factor (BDNF) are highly convergent on brain function. Studies in humanized mice document an interaction between estrus cycle-related changes in estradiol secretion and BDNF Val(66)Met genotype on measures of hippocampal function and anxiety-like behavior. We believe our multimodal imaging data provide the first demonstration in women that the effects of the BDNF Val/Met polymorphism on hippocampal function are selectively modulated by estradiol...
April 18, 2017: Molecular Psychiatry
https://www.readbyqxmd.com/read/28416631/mutation-of-neuron-specific-chromatin-remodeling-subunit-baf53b-rescue-of-plasticity-and-memory-by-manipulating-actin-remodeling
#14
Annie Vogel Ciernia, Enikö A Kramár, Dina P Matheos, Robbert Havekes, Thekla J Hemstedt, Christophe N Magnan, Keith Sakata, Ashley Tran, Soraya Azzawi, Alberto Lopez, Richard Dang, Weisheng Wang, Brian Trieu, Joyce Tong, Ruth M Barrett, Rebecca J Post, Pierre Baldi, Ted Abel, Gary Lynch, Marcelo A Wood
Recent human exome-sequencing studies have implicated polymorphic Brg1-associated factor (BAF) complexes (mammalian SWI/SNF chromatin remodeling complexes) in several intellectual disabilities and cognitive disorders, including autism. However, it remains unclear how mutations in BAF complexes result in impaired cognitive function. Post-mitotic neurons express a neuron-specific assembly, nBAF, characterized by the neuron-specific subunit BAF53b. Subdomain 2 of BAF53b is essential for the differentiation of neuronal precursor cells into neurons...
May 2017: Learning & Memory
https://www.readbyqxmd.com/read/28416093/the-role-of-cognitive-functioning-in-the-relationship-between-childhood-trauma-and-a-mixed-phenotype-of-affective-anxious-psychotic-symptoms-in-psychotic-disorders
#15
Giovanni Mansueto, Martine van Nierop, Koen Schruers, Berhooz Z Alizadeh, Agna A Bartels-Velthuis, Nico J van Beveren, Richard Bruggeman, Wiepke Cahn, Lieuwe de Haan, Philippe Delespaul, Carin J Meijer, Inez Myin-Germeys, Rene S Kahn, Frederike Schirmbeck, Claudia J P Simons, Neeltje E M van Haren, Jim van Os, Ruud van Winkel
Cognitive impairments in patients with psychotic disorder have been associated with poor functioning and increased symptom severity. Furthermore, childhood trauma (CT) exposure has been associated with worse cognitive functioning as well as co-occurrence of affective-anxious-psychosis symptoms or a 'mixed phenotype of psychopathology' (MP), which in turn is associated with greater symptom severity, and poor functioning. This study aims to evaluate if cognition could be associated with CT/MP. 532 patients with non-affective psychotic patients were assessed on CT, symptom profile, cognition, functioning, and symptom severity at baseline and 3 and 6-year follow-up...
April 13, 2017: Schizophrenia Research
https://www.readbyqxmd.com/read/28416008/a-guide-to-acquired-vitamin-k-coagulophathy-diagnosis-and-treatment-the-russian-perspective
#16
REVIEW
Valery V Wojciechowski, Daniela Calina, Konstantinos Tsarouhas, Alexander V Pivnik, Alexander A Sergievich, Vladimir V Kodintsev, Ekaterina A Filatova, Eren Ozcagli, Anca Oana Docea, Andreea Letitia Arsene, Eliza Gofita, Christina Tsitsimpikou, Aristidis M Tsatsakis, Kirill S Golokhvast
Physicians often come across with cases of vitamin K antagonists-dependent coagulopathy for reasons such as accidental use of the vitamin K antagonists (VKA), excessive administration of prescribed anticoagulants of indirect action or not reported administration of vitamin K antagonists due to memory impairment and/or other mental disorders, even deliberate use thereof (attempt to murder or suicide). Rodenticide-poisoning (coumarins, warfarins) via food or occupational accidents are difficult to diagnose. This article discusses different types of acquired vitamin K-dependent coagulopathy...
April 17, 2017: Daru: Journal of Faculty of Pharmacy, Tehran University of Medical Sciences
https://www.readbyqxmd.com/read/28415138/the-roles-of-valuation-and-reward-processing-in-cognitive-function-and-psychiatric-disorders
#17
REVIEW
Sébastien Hélie, Farzin Shamloo, Keisha Novak, Dan Foti
In neuroeconomics, valuation refers to the process of assigning values to states and actions on the basis of the animal's current representation of the environment, while reward processing corresponds to processing the feedback received from the environment to update the values of states and actions. In this article, we review the brain circuits associated with valuation and reward processing and argue that these are fundamental processes critical to many cognitive functions. Specifically, we focus on the role of valuation and reward processing in attention, memory, decision making, and learning...
April 17, 2017: Annals of the New York Academy of Sciences
https://www.readbyqxmd.com/read/28414249/psychological-distress-is-associated-with-altered-cognitive-functioning-in-family-caregivers-of-patients-with-disorders-of-consciousness
#18
P Moretta, O Masotta, E Crispino, G Castronovo, S Ruvolo, C Montalbano, V Loreto, L Trojano, A Estraneo
OBJECTIVES: To analyse the possible presence of reduced cognitive efficiency in family caregivers of patients with prolonged disorders of consciousness (DOC). SUBJECTS: The participants were 27 caregivers of 25 patients with DOC admitted to the severe brain injury units of the ICS Maugeri, Institutes of Telese Terme and Sciacca, Italy. METHODS: We examined cognitive functions such as short- and long-term memory, executive functions and attention by means of standardized tests...
April 17, 2017: Brain Injury: [BI]
https://www.readbyqxmd.com/read/28413999/improving-sensitivity-to-detect-mild-cognitive-impairment-cognitive-load-dual-task-gait-speed-assessment
#19
Rebecca K MacAulay, Mark T Wagner, Dana Szeles, Nicholas J Milano
OBJECTIVES: Longitudinal research indicates that cognitive load dual-task gait assessment is predictive of cognitive decline and thus might provide a sensitive measure to screen for mild cognitive impairment (MCI). However, research among older adults being clinically evaluated for cognitive concerns, a defining feature of MCI, is lacking. The present study investigated the effect of performing a cognitive task on normal walking speed in patients presenting to a memory clinic with cognitive complaints...
April 17, 2017: Journal of the International Neuropsychological Society: JINS
https://www.readbyqxmd.com/read/28413813/new-insights-into-early-life-stress-and-behavioral-outcomes
#20
Jessica L Bolton, Jenny Molet, Autumn Ivy, Tallie Z Baram
Adverse early-life experiences, including various forms of early-life stress, have consistently been linked with vulnerability to cognitive and emotional disorders later in life. Understanding the mechanisms underlying the enduring consequences of early-life stress is an active area of research, because this knowledge is critical for developing potential interventions. Animal models of early-life stress typically rely on manipulating maternal/parental presence and care, because these are the major source of early-life experiences in humans...
April 2017: Current Opinion in Behavioral Sciences
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