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https://www.readbyqxmd.com/read/29678986/detecting-risk-of-postural-hypotension-drop-derivation-and-validation-of-a-prediction-score-for-primary-care
#1
Christopher Elles Clark, Daniel Thomas, Fiona C Warren, David J Llewellyn, Luigi Ferrucci, John L Campbell
OBJECTIVES: Falls are a common problem in older people. Postural hypotension contributes to falls but is often asymptomatic. In the absence of symptoms, postural hypotension is only infrequently checked for in clinical practice. We undertook this study to derive, validate and explore the prospective associations of a prediction tool to identify people likely to have unrecognised postural hypotension. DESIGN AND SETTING: Cross-sectional and prospective multivariable cohort analysis...
April 20, 2018: BMJ Open
https://www.readbyqxmd.com/read/29678935/atrophy-patterns-in-cerebral-amyloid-angiopathy-with-and-without-cortical-superficial-siderosis
#2
Joonho Kim, Han Kyu Na, Jeong-Hyeon Shin, Hee Jin Kim, Sang Won Seo, Joon-Kyung Seong, Duk L Na
OBJECTIVE: To investigate differential atrophy patterns based on the presence of cortical superficial siderosis (cSS) and the role of cSS in predicting amyloid positivity in memory clinic patients fulfilling the diagnostic criteria for probable cerebral amyloid angiopathy (CAA). METHODS: We retrospectively collected data from 44 cognitively impaired patients with probable CAA who underwent 3-dimensional, T1-weighted MRIs (cSS+, n = 27; cSS-, n = 17). Amyloid-positive patients with Alzheimer disease (AD) (n = 56) and amyloid-negative cognitively normal participants (n = 34) were recruited as controls...
April 20, 2018: Neurology
https://www.readbyqxmd.com/read/29678718/a-concealment-specific-frontal-negative-slow-wave-is-generated-from-the-right-prefrontal-cortex-in-the-concealed-information-test
#3
Izumi Matsuda, Izumi Matsudaaa
Recent studies have shown that a memorized item in the Concealed Information Test elicits a frontal negative slow wave (500-1000 ms) of the event-related potential, the cortical source of which involves the right prefrontal cortex. To examine whether this negative slow wave reflects a process that is specific to concealment rather than a more general cognitive control process, we compared the event-related potentials of 24 participants in four conditions involving the presence or absence of memory and the intention to conceal...
April 17, 2018: Biological Psychology
https://www.readbyqxmd.com/read/29678162/tacrolimus-induced-parkinsonism-in-a-patient-after-liver-transplantation-case-report
#4
Karin Gmitterová, Michal Minár, Miroslav Žigrai, Zuzana Košutzká, Alice Kušnírová, Peter Valkovič
BACKGROUND: Hepatic encephalopathy may manifest by a wide spectrum of neuropsychiatric symptoms, including cognitive impairment, seizures or extrapyramidal symptoms. The liver transplant can lead to improvement of the signs of encephalopathy but subsequent immunosuppressive treatment might possess pronounced neurotoxicity. CASE PRESENTATION: We present a case report of a patient with chronic liver disease who developed signs of Parkinsonism after an orthotopic liver transplant, with consecutive immunosuppressant treatment with tacrolimus...
April 20, 2018: BMC Neurology
https://www.readbyqxmd.com/read/29677690/investigating-the-effects-of-visual-distractors-on-the-performance-of-a-motor-imagery-brain-computer-interface
#5
Zahra Emami, Tom Chau
OBJECTIVES: Brain-computer interfaces (BCIs) allow users to operate a device or application by means of cognitive activity. This technology will ultimately be used in real-world environments which include the presence of distractors. The purpose of the study was to determine the effect of visual distractors on BCI performance. METHODS: Sixteen able-bodied participants underwent neurofeedback training to achieve motor imagery-guided BCI control in an online paradigm using electroencephalography (EEG) to measure neural signals...
April 3, 2018: Clinical Neurophysiology: Official Journal of the International Federation of Clinical Neurophysiology
https://www.readbyqxmd.com/read/29674331/ono-8590580-a-novel-gaba-a-%C3%AE-5-negative-allosteric-modulator-enhances-long-term-potentiation-and-improves-cognitive-deficits-in-preclinical-models
#6
Soichi Kawaharada, Miki Nakanishi, Nobuto Nakanishi, Keisuke Hazama, Masato Higashino, Arwel Lewis, Gary S Clark, Mark S Chambers, Scott A Maidment, Tetsuya Yasuhiro, Seishi Katsumata, Shuji Kaneko
GABAA receptors containing α5 subunits (GABAA α5) are highly expressed in the hippocampus and negatively involved in memory processing, as shown by the fact that GABAA α5 deficient mice show higher hippocampus-dependent performance than wild type mice. Accordingly, small molecule GABAA α5 negative allosteric modulators (NAMs) are known to enhance spatial learning and memory in rodents. Here we introduce a new, orally-available GABAA α5 NAM that improves hippocampal functions. ONO-8590580 binds to the benzodiazepine binding sites on recombinant human α5-containing GABAA receptors with a Ki of 7...
April 19, 2018: Journal of Pharmacology and Experimental Therapeutics
https://www.readbyqxmd.com/read/29674270/response-inhibition-and-emotional-cognition-improved-by-atomoxetine-in-children-and-adolescents-with-adhd-the-action-randomized-controlled-trial
#7
Kristi R Griffiths, John E Leikauf, Tracey W Tsang, Simon Clarke, Daniel F Hermens, Daryl Efron, Leanne M Williams, Michael R Kohn
Although the non-stimulant medication atomoxetine is effective for attention-deficit hyperactivity disorder (ADHD) in children and adolescents, there are still significant gaps in our knowledge about whether atomoxetine improves anxiety symptoms or cognition in children. Furthermore, while cognition has been proposed as an intermediate phenotype for ADHD dysfunction, the relationships between clinical and cognitive outcomes are not yet understood. We addressed these knowledge gaps in a controlled trial using objective assessments of both general and emotional cognitive functions implicated in ADHD and in anxiety, which commonly co-occurs with ADHD...
March 27, 2018: Journal of Psychiatric Research
https://www.readbyqxmd.com/read/29674181/high-glucose-forces-a-positive-feedback-loop-connecting-erbb4-expression-and-mtor-s6k-pathway-to-aggravate-the-formation-of-tau-hyperphosphorylation-in-differentiated-sh-sy5y-cells
#8
Sheng-Dan Nie, Xin Li, Can-E Tang, Fang-Yuan Min, Xia-Jie Shi, Liang-Yan Wu, Shan-Lei Zhou, Zi Chen, Jing Wu, Tao Song, Zhi-Jie Dai, Jiao Zheng, Jia-Jia Liu, Shan Wang
High glucose (HG)-induced mammalian target of rapamycin (mTOR) overactivation acts as a signaling hub for the formation of tau hyperphosphorylation, which contributes to the development of diabetes-associated cognitive deficit. How HG induces the sustained activation of mTOR in neurons is not clearly understood. ErbB4, a member of the receptor tyrosine kinase family, plays critical roles in development and function of neural circuitry, relevant to behavioral deficits. Here, we showed HG-induced ErbB4 overexpression in differentiated SH-SY5Y cells and primary hippocampal neurons and hippocampal pyramidal neurons of streptozotocin-induced diabetic rats...
March 23, 2018: Neurobiology of Aging
https://www.readbyqxmd.com/read/29673549/tau-and-neuroinflammation-what-impact-for-alzheimer-s-disease-and-tauopathies
#9
REVIEW
Cyril Laurent, Luc Buée, David Blum
Alzheimer's Disease (AD) is a chronic neurodegenerative disorder and the most common type of dementia (60-80% of cases). In 2016, nearly 44 million people were affected by AD or related dementia. AD is characterized by progressive neuronal damages leading to subtle and latter obvious decline in cognitive functions including symptoms such as memory loss or confusion, which ultimately require full-time medical care. Its neuropathology is defined by the extracellular accumulation of amyloid-β (Aβ) peptide into amyloid plaques, and intraneuronal neurofibrillary tangles (NFT) consisting of aggregated hyper- and abnormal phosphorylation of tau protein...
February 2018: Biomedical Journal
https://www.readbyqxmd.com/read/29672930/clinical-and-imaging-correlates-of-amyloid-deposition-in-dementia-with-lewy-bodies
#10
Paul C Donaghy, Michael J Firbank, Alan J Thomas, Jim Lloyd, George Petrides, Nicola Barnett, Kirsty Olsen, John T O'Brien
BACKGROUND: Amyloid deposition is common in dementia with Lewy bodies, but its pathophysiological significance is unclear. OBJECTIVE: The objective of this study was to investigate the relationship between amyloid deposition and clinical profile, gray matter volume, and brain perfusion in dementia with Lewy bodies. METHODS: Dementia with Lewy bodies (n = 37), Alzheimer's disease (n = 20), and controls (n = 20) underwent a thorough clinical assessment, 3T MRI, and early- and late-phase 18 F-Florbetapir PET-CT to assess cortical perfusion and amyloid deposition, respectively...
April 19, 2018: Movement Disorders: Official Journal of the Movement Disorder Society
https://www.readbyqxmd.com/read/29672597/naturalistic-music-and-dance-cortical-phase-synchrony-in-musicians-and-dancers
#11
Hanna Poikonen, Petri Toiviainen, Mari Tervaniemi
Expertise in music has been investigated for decades and the results have been applied not only in composition, performance and music education, but also in understanding brain plasticity in a larger context. Several studies have revealed a strong connection between auditory and motor processes and listening to and performing music, and music imagination. Recently, as a logical next step in music and movement, the cognitive and affective neurosciences have been directed towards expertise in dance. To understand the versatile and overlapping processes during artistic stimuli, such as music and dance, it is necessary to study them with continuous naturalistic stimuli...
2018: PloS One
https://www.readbyqxmd.com/read/29672097/cognitive-and-affective-mechanisms-of-pain-and-fatigue-in-multiple-sclerosis
#12
Anne Arewasikporn, Aaron P Turner, Kevin N Alschuler, Abbey J Hughes, Dawn M Ehde
OBJECTIVE: To examine the extent to which pain catastrophizing, fatigue catastrophizing, positive affect, and negative affect simultaneously mediated the associations between common symptoms of multiple sclerosis (MS; i.e., pain, fatigue) and impact on daily life, depressive symptoms, and resilience. METHOD: Participants were community-dwelling adults with MS (N = 163) reporting chronic pain, fatigue, and/or moderate depressive symptoms. Multiple mediation path analysis was used to model potential mediators of pain and fatigue separately, using baseline data from a randomized controlled trial comparing two symptom self-management interventions...
April 19, 2018: Health Psychology: Official Journal of the Division of Health Psychology, American Psychological Association
https://www.readbyqxmd.com/read/29672087/gratefulness-and-subjective-well-being-social-connectedness-and-presence-of-meaning-as-mediators
#13
Kelly Yu-Hsin Liao, Chih-Yuan Weng
The association between gratefulness and well-being is well established; however, few studies have examined the mechanisms that underlie this association. The broaden-and-build theory (Fredrickson, 1998, 2001) posits that positive emotions broaden individuals' momentary thought-action repertoires, which serve to build personal resources that can be drawn upon during future stressful encounters. Based on this theory, the current study examined whether gratefulness, a positive emotion, would build social and cognitive resources in terms of social connectedness and presence of meaning in life (i...
April 2018: Journal of Counseling Psychology
https://www.readbyqxmd.com/read/29671771/analgesic-effects-of-botulinum-toxin-in-children-with-cp
#14
REVIEW
Josephine Sandahl Michelsen, Gitte Normann, Christian Wong
Experiencing pain is the greatest contributor to a reduced quality of life in children with cerebral palsy (CP). The presence of pain is quite common (~60%) and increases with age. This leads to missed school days, less participation, and reduced ambulation. Despite these alarming consequences, strategies to relieve the pain are absent and poorly studied. Moreover, it is difficult to evaluate pain in this group of children, especially in cases of children with cognitive deficits, and tools for pain evaluation are often inadequate...
April 19, 2018: Toxins
https://www.readbyqxmd.com/read/29671621/a-research-framework-to-isolate-visuospatial-from-childhood-motor-coordination-phenotypes
#15
Michele Poletti
Clinicians acknowledge the presence of developmental cognitive phenotypes mainly characterized by a specific visuospatial impairment in presence of intact verbal functioning (usually referred as Nonverbal Learning Disability: NLD) since many decades, without providing sufficient empirical evidence supporting their nosological validity and inclusion in current diagnostic manuals. This contribution suggests that the goal of including NLD in future diagnostic manuals could be achieved only be the demonstration of the validity of this hypothesized clinical category...
April 19, 2018: Applied Neuropsychology. Child
https://www.readbyqxmd.com/read/29671352/huntington-s-disease-novel-therapeutic-perspectives-hanging-in-the-balance
#16
Ana Saavedra, Gerardo García-Díaz Barriga, Esther Pérez-Navarro, Jordi Alberch
Huntington's disease (HD), an autosomal dominant neurodegenerative disorder caused by an expansion of CAG repeats in the huntingtin gene, has long been characterized by the presence of motor symptoms due to the loss of striatal projection neurons. Cognitive dysfunction and neuropsychiatric symptoms are also present and they occur in the absence of cell death in most mouse models, pointing to neuronal dysfunction and abnormal synaptic plasticity as causative mechanisms. Areas covered: Here, we focus on those common mechanisms altered by the presence of mutant huntingtin affecting corticostriatal and hippocampal function as therapeutic targets that could prove beneficial to ameliorate both cognitive and motor function in HD...
April 19, 2018: Expert Opinion on Therapeutic Targets
https://www.readbyqxmd.com/read/29669268/frailty-and-cognitive-status-evaluation-can-better-predict-mortality-in-older-adults
#17
Ivan Aprahamian, Claudia Kimie Suemoto, Márlon Juliano Romero Aliberti, Sileno de Queiroz Fortes Filho, Juliana de Araújo Melo, Sumika Mori Lin, Wilson Jacob Filho
OBJECTIVES: to evaluate the improvement in one-year mortality prediction after adding a 2-min cognitive screening to a simple 1-min frailty detection instrument. Secondary outcomes were new activities of daily living (ADL) disability and falls. DESIGN: Prospective cohort study. SETTING: A geriatric day-hospital for intermediate care. PARTICIPANTS: A total of 701 older adults with an acute or decompensated disease (79...
April 11, 2018: Archives of Gerontology and Geriatrics
https://www.readbyqxmd.com/read/29664917/the-edinburgh-social-cognition-test-escot-examining-the-effects-of-age-on-a-new-measure-of-theory-of-mind-and-social-norm-understanding
#18
R Asaad Baksh, Sharon Abrahams, Bonnie Auyeung, Sarah E MacPherson
Current measures of social cognition have shown inconsistent findings regarding the effects of healthy aging. Moreover, no tests are currently available that allow clinicians and researchers to examine cognitive and affective theory of mind (ToM) and understanding of social norms within the same test. To address these limitations, we present the Edinburgh Social Cognition Test (ESCoT) which assesses cognitive and affective ToM and inter- and intrapersonal understanding of social norms. We examined the effects of age, measures of intelligence and the Broader Autism Phenotype (BAP) on the ESCoT and established tests of social cognition...
2018: PloS One
https://www.readbyqxmd.com/read/29664505/pain-in-children-and-adolescents-hospitalized-in-a-center-of-reference
#19
C Zunino, M Notejane, M Bernadá, L Rodríguez, N Vanoli, M Rojas, L Benech, I Mimbacas
INTRODUCTION: The evaluation and treatment of pain in hospitalized is still an important health pro blem. OBJECTIVE: To know the prevalence, characteristics and approaches to pain management in children and adolescents hospitalized in the Pediatric Hospital of the Pereira Rossell Center (HP-CH- PR), a pediatric reference center in Uruguay. PATIENTS AND METHOD: Cross-sectional study, through survey and review of clinical records on 09/13/16...
February 2018: Revista Chilena de Pediatría
https://www.readbyqxmd.com/read/29663599/greater-caregiving-risk-better-infant-memory-performance
#20
Anne Rifkin-Graboi, Jeffry Quan, Jenny Richmond, Shaun Kok Yew Goh, Lit Wee Sim, Yap Seng Chong, Jean Francois-Bureau, Helen Chen, Anqi Qiu
Poor early life care often relates to cognitive difficulties. However, newer work suggests that in early-life, adversity may associate with enhanced or accelerated neurodevelopment. We examine associations between postnatal caregiving risks (i.e., higher self-reported postnatal-anxiety and lower observed maternal sensitivity) and infant relational memory (i.e. via deferred imitation and relational binding). Using subsamples of 67-181 infants (aged 433-477 post-conceptual days, or roughly five to seven months since birth) taking part in the GUSTO study, we found such postnatal caregiving risk significantly predictive of "better" performance on a relational binding task following a brief delay, after Bonferroni adjustments...
April 16, 2018: Hippocampus
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