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Neurocognitive dysfunction

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https://www.readbyqxmd.com/read/28079875/early-postnatal-illness-severity-scores-predict-neurodevelopmental-impairments-at-10-years-of-age-in-children-born-extremely-preterm
#1
J W Logan, O Dammann, E N Allred, C Dammann, K Beam, R M Joseph, T M O'Shea, A Leviton, K C K Kuban
OBJECTIVE: A neonatal illness severity score, The Score for Neonatal Acute Physiology-II (SNAP-II), predicts neurodevelopmental impairments at two years of age among children born extremely preterm. We sought to evaluate to what extent SNAP-II is predictive of cognitive and other neurodevelopmental impairments at 10 years of age. STUDY DESIGN: In a cohort of 874 children born before 28 weeks of gestation, we prospectively collected clinical, physiologic and laboratory data to calculate SNAP-II for each infant...
January 12, 2017: Journal of Perinatology: Official Journal of the California Perinatal Association
https://www.readbyqxmd.com/read/28065182/increased-fronto-striatal-reward-prediction-errors-moderate-decision-making-in-obsessive-compulsive-disorder
#2
T U Hauser, R Iannaccone, R J Dolan, J Ball, J Hättenschwiler, R Drechsler, M Rufer, D Brandeis, S Walitza, S Brem
BACKGROUND: Obsessive-compulsive disorder (OCD) has been linked to functional abnormalities in fronto-striatal networks as well as impairments in decision making and learning. Little is known about the neurocognitive mechanisms causing these decision-making and learning deficits in OCD, and how they relate to dysfunction in fronto-striatal networks. METHOD: We investigated neural mechanisms of decision making in OCD patients, including early and late onset of disorder, in terms of reward prediction errors (RPEs) using functional magnetic resonance imaging...
January 9, 2017: Psychological Medicine
https://www.readbyqxmd.com/read/28060567/correlation-of-head-impacts-to-change-in-balance-error-scoring-system-scores-in-division-i-men-s-lacrosse-players
#3
Theresa L Miyashita, Eleni Diakogeorgiou, Kaitlyn Marrie
BACKGROUND: Investigation into the effect of cumulative subconcussive head impacts has yielded various results in the literature, with many supporting a link to neurological deficits. Little research has been conducted on men's lacrosse and associated balance deficits from head impacts. HYPOTHESES: (1) Athletes will commit more errors on the postseason Balance Error Scoring System (BESS) test. (2) There will be a positive correlation to change in BESS scores and head impact exposure data...
January 1, 2017: Sports Health
https://www.readbyqxmd.com/read/28056892/correlations-between-physical-activity-and-neurocognitive-domain-functions-in-patients-with-schizophrenia-a-cross-sectional-study
#4
Yusuke Kurebayashi, Junichi Otaki
BACKGROUND: Neurocognitive dysfunction is a critical target symptom of schizophrenia treatment. A positive correlation between physical activity level and neurocognitive function has been reported in healthy individuals, but it is unclear whether such a correlation exists in patients with schizophrenia and whether the relationship is different according to inpatients or outpatients. This study aimed to examine the differences in the correlations between physical activity and multiple neurocognitive domains in inpatients and outpatients with schizophrenia and obtain suggestions for further study to facilitate this field...
January 5, 2017: BMC Psychiatry
https://www.readbyqxmd.com/read/28056424/neonatal-anesthetic-neurotoxicity-insight-into-the-molecular-mechanisms-of-long-term-neurocognitive-deficits
#5
REVIEW
Deshui Yu, Linji Li, Weiguo Yuan
Mounting animal studies have demonstrated that almost all the clinically used general anesthetics could induce widespread neuroapoptosis in the immature brain. Alarmingly, some published findings have reported long-term neurocognitive deficits in response to early anesthesia exposure which deeply stresses the potential seriousness of developmental anesthetic neurotoxicity. However, the connection between anesthesia induced neuroapoptosis and subsequent neurocognitive deficits remains controversial. It should be noted that developmental anesthesia related neurotoxicity is not limited to neuroapoptosis...
January 2, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28053040/disruption-of-glucagon-like-peptide-1-signaling-in-sim1-neurons-reduces-physiological-and-behavioral-reactivity-to-acute-and-chronic-stress
#6
Sriparna Ghosal, Amy E B Packard, Parinaz Mahbod, Jessica M McKlveen, Randy J Seeley, Brent Myers, Yvonne Ulrich-Lai, Eric P Smith, David A D'Alessio, James P Herman
: Organismal stress initiates a tightly orchestrated set of responses involving complex physiological and neurocognitive systems. Here, we present evidence for glucagon-like peptide 1 (GLP-1)-mediated paraventricular hypothalamic circuit coordinating the global stress response. The GLP-1 receptor (Glp1r) in mice was knocked down in neurons expressing single-minded 1, a transcription factor abundantly expressed in the paraventricular nucleus (PVN) of the hypothalamus. Mice with single-minded 1-mediated Glp1r knockdown had reduced hypothalamic-pituitary-adrenal axis responses to both acute and chronic stress and were protected against weight loss associated with chronic stress...
January 4, 2017: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/28051338/activity-dependent-sulfhydration-signal-controls-nmdar-dependent-synaptic-plasticity-via-increasing-d-serine-availability
#7
Yuan-Long Li, Pei-Fei Wu, Jian-Guo Chen, Sheng Wang, Qian-Qian Han, Dan Li, Wen Wang, Xin-Lei Guan, Di Li, Li-Hong Long, Jian-Geng Huang, Fang Wang
AIMS: Reactive sulfur species (RSS) including hydrogen sulfide (H2S) and its oxydates have been raised as novel redox signaling molecules. The present study aimed at examining whether endogenous sulfhydration signal are required for long-term potentiation (LTP), a cellular model for memory. RESULTS: Here, we found that increased synaptic activity triggered sulfide generationand protein sulfhydration. Activity-triggered sulfide production was essential for N-methyl-D-aspartate subtype glutamate receptors (NMDARs)-dependent LTP via maintaining the availability of D-serine, a primary co-agonist for synaptic NMDARs...
January 4, 2017: Antioxidants & Redox Signaling
https://www.readbyqxmd.com/read/28047933/su-f-t-401-three-dimensional-conformal-planning-using-low-segment-multi-criteria-optimization-for-hippocampal-avoidance-whole-brain-radiotherapy
#8
X Zhang, J Penagaricano, G Narayanasamy, R Griffin, S Maraboyina, N Paudel, C Peter, S Morrill
PURPOSE: Hippocampus avoidance whole brain radiotherapy (HA-WBRT) has been shown to reduce the risk of neurocognitive dysfunction. This type of treatment has the potential of insurance company payment denial due to increased cost of intensity modulated radiotherapy (IMRT), while the accepted modality for WBRT is three-dimensional conformal radiotherapy (3DCRT). The purpose of this study is to assess HA-WBRT treatment plans using 3DCRT and multi-criteria optimization (MCO) that meets the RTOG 0933 criteria...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28030441/does-permissive-hypoxaemia-during-extracorporeal-membrane-oxygenation-cause-long-term-neurological-impairment-a-study-in-patients-with-h1n1-induced-severe-respiratory-failure
#9
Bernhard Holzgraefe, Christin Andersson, Håkan Kalzén, Viktor von Bahr, Mikael Mosskin, Elna-Marie Larsson, Kenneth Palmér, Björn Frenckner, Anders Larsson
BACKGROUND: The Extracorporeal Life Support Organisation accepts permissive hypoxaemia in adult patients during extracorporeal membrane oxygenation (ECMO). The neurological long-term outcome of this approach has not yet been studied. OBJECTIVES: We investigated the prevalence of brain lesions and cognitive dysfunction in survivors from the Influenza A/H1N1 2009 pandemic treated with permissive hypoxaemia during ECMO for severe acute respiratory distress syndrome (ARDS)...
February 2017: European Journal of Anaesthesiology
https://www.readbyqxmd.com/read/28025811/neurocognition-in-ptsd-treatment-insights-and-implications
#10
Amy J Jak, Laura D Crocker, Robin L Aupperle, Ashley Clausen, Jessica Bomyea
Post-traumatic stress disorder (PTSD) is classified as a traumatic stress-related condition and is most often discussed in terms of emotional dysfunction. However, given that cognitive and emotional processes are intricately intertwined, implemented by overlapping brain networks, and effectively integrated in at least some of the same regions (e.g., prefrontal cortex, for a review, see [1]), an abundance of literature now highlights the key role that cognitive functioning plays in both the development and maintenance (or exacerbation) of PTSD symptoms [2, 3]...
December 27, 2016: Current Topics in Behavioral Neurosciences
https://www.readbyqxmd.com/read/28017917/intrinsic-inter-network-brain-dysfunction-correlates-with-symptom-dimensions-in-late-life-depression
#11
Wenjun Li, Yang Wang, B Douglas Ward, Piero G Antuono, Shi-Jiang Li, Joseph S Goveas
Prior studies have demonstrated dysfunctions within the core neurocognitive networks (the executive control [ECN], default mode [DMN] and salience [SN] networks) in late-life depression (LLD). Whether inter-network dysfunctional connectivity is present in LLD, and if such disruptions are associated with core symptom dimensions is unknown. A cross-sectional resting-state functional connectivity magnetic resonance imaging investigation was conducted of LLD (n = 39) and age- and gender-equated healthy comparison (HC) (n = 29) participants...
December 12, 2016: Journal of Psychiatric Research
https://www.readbyqxmd.com/read/28013123/a-randomized-double-blind-placebo-controlled-crossover-trial-evaluating-the-effect-of-intranasal-insulin-on-cognition-and-mood-in-individuals-with-treatment-resistant-major-depressive-disorder
#12
Danielle S Cha, Michael W Best, Christopher R Bowie, Laura Ashley Gallaugher, Hanna O Woldeyohannes, Joanna K Soczynska, Gary Lewis, Glenda MacQueen, Barbara J Sahakian, Sidney H Kennedy, Jane P Lui, Rodrigo B Mansur, Roger S McIntyre
BACKGROUND: Cognitive dysfunction in major depressive disorder (MDD) is identified as a primary therapeutic target; no current treatment is approved for the treatment of cognitive dysfunction in MDD. We examined whether intranasal insulin offered a beneficial effect across measures of cognitive function in adults with MDD. METHODS: Thirty-five adults (18-65 years of age: 47.09±9.89) meeting criteria for a major depressive episode as per the Diagnostic and Statistical Manual (DSM)-IV-Treatment Revised were included in this randomized, double blind, placebo-controlled, crossover design study...
December 18, 2016: Journal of Affective Disorders
https://www.readbyqxmd.com/read/27992660/the-challenges-of-diagnosing-cognitive-dysfunction-with-neuropsychiatric-systemic-lupus-erythematosus-in-childhood
#13
REVIEW
Ashwaq AlE'ed, Patricia Vega-Fernandez, Eyal Muscal, Claas Hinze, Lori B Tucker, Simone Appenzeller, Brigitte Bader-Meunier, Johannes Roth, Vicenç Torrente-Segarra, Marisa S Klein-Gitelman, Deborah M Levy, Tresa Roebuck-Spencer, Hermine Brunner
The diagnosis of Neuropsychiatric systemic lupus erythematosus disease (NPSLE) is challenging. The Automated Neuropsychological Assessment Metrics (ANAM) has been shown to be an accessible and promising tool for evaluating possible NPSLE in adult and childhood lupus. In this review, we present information about the development and use of Ped-ANAM; the benefit of using Ped-ANAM in children with and without NPSLE in the assessment and follow up of their disease condition; and the correlation of Ped-ANAM to imaging studies such as magnetic resonance imaging (MRI)...
December 19, 2016: Arthritis Care & Research
https://www.readbyqxmd.com/read/27989970/neurocognitive-function-surrounding-the-resection-of-frontal-who-grade-i-meningiomas-a-prospective-matched-control-study
#14
Philipp Hendrix, Elisa Hans, Christoph J Griessenauer, Andreas Simgen, Joachim Oertel, Julia Karbach
OBJECTIVE: Patients suffering from intracranial meningiomas may suffer from neurocognitive dysfunctions in specific cognitive domains depending on tumor location and size. The literature on the cognitive function surrounding the resection of frontal meningiomas is sparse. METHODS: We performed a prospective matched-control study to investigate the cognitive performance of frontal meningioma patients undergoing resection. The neurocognitive status one week and two months post resection was compared to the preoperative status and to matched-controls...
October 27, 2016: World Neurosurgery
https://www.readbyqxmd.com/read/27989844/in-need-of-constraint-understanding-the-role-of-the-cingulate-cortex-in-the-impulsive-mind
#15
Johannes Golchert, Jonathan Smallwood, Elizabeth Jefferies, Franziskus Liem, Julia M Huntenburg, Marcel Falkiewicz, Mark E Lauckner, Sabine Oligschläger, Arno Villringer, Daniel S Margulies
Impulsive behavior often occurs without forethought and can be driven by strong emotions or sudden impulses, leading to problems in cognition and behavior across a wide range of situations. Although neuroimaging studies have explored the neurocognitive indicators of impulsivity, the large-scale functional networks that contribute to different aspects of impulsive cognition remain unclear. In particular, we lack a coherent account of why impulsivity is associated with such a broad range of different psychological features...
October 27, 2016: NeuroImage
https://www.readbyqxmd.com/read/27983697/%C3%AE-tocopherol-and-hippocampal-neural-plasticity-in-physiological-and-pathological-conditions
#16
REVIEW
Patrizia Ambrogini, Michele Betti, Claudia Galati, Michael Di Palma, Davide Lattanzi, David Savelli, Francesco Galli, Riccardo Cuppini, Andrea Minelli
Neuroplasticity is an "umbrella term" referring to the complex, multifaceted physiological processes that mediate the ongoing structural and functional modifications occurring, at various time- and size-scales, in the ever-changing immature and adult brain, and that represent the basis for fundamental neurocognitive behavioral functions; in addition, maladaptive neuroplasticity plays a role in the pathophysiology of neuropsychiatric dysfunctions. Experiential cues and several endogenous and exogenous factors can regulate neuroplasticity; among these, vitamin E, and in particular α-tocopherol (α-T), the isoform with highest bioactivity, exerts potent effects on many plasticity-related events in both the physiological and pathological brain...
December 15, 2016: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/27966610/molecular-mechanism-the-human-dopamine-transporter-histidine-547-regulates-basal-and-hiv-1-tat-protein-inhibited-dopamine-transport
#17
Pamela M Quizon, Wei-Lun Sun, Yaxia Yuan, Narasimha M Midde, Chang-Guo Zhan, Jun Zhu
Abnormal dopaminergic transmission has been implicated as a risk determinant of HIV-1-associated neurocognitive disorders. HIV-1 Tat protein increases synaptic dopamine (DA) levels by directly inhibiting DA transporter (DAT) activity, ultimately leading to dopaminergic neuron damage. Through integrated computational modeling prediction and experimental validation, we identified that histidine547 on human DAT (hDAT) is critical for regulation of basal DA uptake and Tat-induced inhibition of DA transport. Compared to wild type hDAT (WT hDAT), mutation of histidine547 (H547A) displayed a 196% increase in DA uptake...
December 14, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27943048/vocal-emotion-processing-deficits-in-hiv-infected-individuals
#18
A González-Baeza, J R Arribas, I Pérez-Valero, S Monge, C Bayón, P Martín, S Rubio, F Carvajal
We aimed to explore the brain imaging correlates of vocal emotion processing in a group of HIV+ individuals and to compare the vocal emotion processing of HIV+ individuals with a group of healthy adults. We conducted multiple linear regressions to determine the cerebral correlates of a newly designed vocal emotion processing test in a sub-group of HIV+ individuals who completed the cerebral magnetic resonance scan (n = 36). Separately, we test whether the association between our test scores and each cerebral measure persisted regardless of the presence of neurocognitive impairment...
December 9, 2016: Journal of Neurovirology
https://www.readbyqxmd.com/read/27938430/cognition-as-a-treatment-target-in-depression
#19
M Kaser, R Zaman, B J Sahakian
Cognitive dysfunction in depression is associated with poorer clinical outcomes and impaired psychosocial functioning. However, most treatments for depression do not specifically target cognition. Neurocognitive deficits such as memory and concentration problems tend to persist after mood symptoms recover. Improving cognition in depression requires a better understanding of brain systems implicated in depression. A comprehensive approach is warranted for refined methods of assessing and treating cognitive dysfunction in depression...
December 12, 2016: Psychological Medicine
https://www.readbyqxmd.com/read/27930990/cigarette-smoke-and-related-risk-factors-in-neurological-disorders-an-update
#20
REVIEW
Smilin Bell Aseervatham G, Sangdun Choi, Jayalakshmi Krishnan, Ruckmani K
Cigarette smoking is known to be harmful to health, and is considered the main cause of death worldwide, especially in India. Among the well-distinguished diseases related to smoking are, chronic obstructive pulmonary disease, oral and peripheral cancers, and cardiovascular complications. However, the impact of cigarette smoking on neurocognitive and neuropathological effects, including anxiety, Alzheimer's disease, Parkinson's disease, ischemic stroke, and blood-brain barrier dysfunction, still remains unclear...
January 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
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