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Behavioral neurology

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https://www.readbyqxmd.com/read/28437057/psychotic-and-bipolar-disorders-behavioral-disorders-in-dementia
#1
Sherri Morgan
Psychosis is one of the most common conditions in later life, with dementia being a main contributing factor. The Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition (DSM-5), now categorizes the various types of dementia as neurocognitive disorders. Alzheimer disease is a common cause of dementia and psychosis. Psychosis also is seen in patients with vascular dementia and dementia with Lewy bodies. Psychosis can be primary, caused by a psychiatric disorder listed in the DSM-5, or secondary, due to a medical or neurologic condition...
April 2017: FP Essentials
https://www.readbyqxmd.com/read/28434123/conversion-disorder-functional-neurological-symptom-disorder-and-chronic-pain-comorbidity-assessment-and-treatment
#2
REVIEW
Patricia Tsui, Andrew Deptula, Derek Y Yuan
PURPOSE OF REVIEW: This paper examines the overlap of conversion disorder with chronic pain conditions, describes ways to assess for conversion disorder, and provides an overview of evidence-based treatments for conversion disorder and chronic pain, with a focus on conversion symptoms. RECENT FINDINGS: Conversion disorder is a significant problem that warrants further study, given that there are not many well-established guidelines. Accurate and timely assessment should help move treatment in a more fruitful direction and avoid unnecessary medical interventions...
June 2017: Current Pain and Headache Reports
https://www.readbyqxmd.com/read/28431906/transgenic-mice-with-increased-astrocyte-expression-of-ccl2-show-altered-behavioral-effects-of-alcohol
#3
Jennifer G Bray, Amanda J Roberts, Donna L Gruol
Emerging research provides strong evidence that activation of CNS glial cells occurs in neurological diseases and brain injury and results in elevated production of neuroimmune factors. These factors can contribute to pathophysiological processes that lead to altered CNS function. Recently, studies have also shown that both acute and chronic alcohol consumption can produce activation of CNS glial cells and the production of neuroimmune factors, particularly the chemokine CCL2. The consequences of alcohol-induced increases in CCL2 levels in the CNS have yet to be fully elucidated...
April 18, 2017: Neuroscience
https://www.readbyqxmd.com/read/28431030/using-multivariate-base-rates-to-interpret-low-scores-on-an-abbreviated-battery-of-the-delis-kaplan-executive-function-system
#4
Justin E Karr, Mauricio A Garcia-Barrera, James A Holdnack, Grant L Iverson
Objective: Executive function consists of multiple cognitive processes that operate as an interactive system to produce volitional goal-oriented behavior, governed in large part by frontal microstructural and physiological networks. Identification of deficits in executive function in those with neurological or psychiatric conditions can be difficult because the normal variation in executive function test scores, in healthy adults when multiple tests are used, is largely unknown. This study addresses that gap in the literature by examining the prevalence of low scores on a brief battery of executive function tests...
May 1, 2017: Archives of Clinical Neuropsychology: the Official Journal of the National Academy of Neuropsychologists
https://www.readbyqxmd.com/read/28430672/lamotrigine-uses-in-psychiatric-practice-beyond-bipolar-prophylaxis-a-hope-or-hype
#5
Ahmed Naguy, Najah Al-Enezi
BACKGROUND: Lamotrigine (LAM), an antiepileptic, with panoply of indications and uses in neurology, is FDA approved, in psychiatry, for bipolar prophylaxis. Apart from this indication, trend of its use in psychiatry is on the rise addressing a multitude of disorders. STUDY QUESTION: LAM remains one of only few psychotropic drugs with antiglutamate activity. This might render LAM a potential therapeutic option in treatment-resistant major psychiatric disorders. We reviewed LAM pharmacology and its diverse indications while examining the extant evidence...
April 19, 2017: American Journal of Therapeutics
https://www.readbyqxmd.com/read/28429077/-implementation-of-the-german-s3-guidelines-on-dementia-in-clinical-practice-wish-or-reality
#6
H Lohmann, F Kulessa, H Holling, A Johnen, S Reul, G Lueg, T Duning
BACKGROUND: Published in 2009, the German S3 guidelines on dementia define a milestone in quality improvement of the diagnostics and treatment of dementia. In clinical practice patients suffering from dementia are primarily treated by physicians in private practice; therefore, this study examined how the guidelines are implemented in outpatient clinical settings. Furthermore, it aimed at the identification of behavioral determinants that govern the actual diagnostic and therapeutic approach in clinical practice...
April 20, 2017: Der Nervenarzt
https://www.readbyqxmd.com/read/28427971/extent-of-resection-in-glioma-a-review-of-the-cutting-edge
#7
REVIEW
Randy S D'Amico, Zachary K Englander, Peter Canoll, Jeffrey N Bruce
Modern glioma surgery has evolved from the principle belief that safe, maximal tumor resection improves symptom management, quality of life, progression-free survival (PFS), and overall survival (OS) in both low- and high-grade glioma (LGG and HGG, respectively). However, in the absence of level I data, the overwhelming support for this idea is derived largely from retrospective series. As a result, the influence of increasing extent of resection (EOR) and reducing tumor burden on the efficacy of postoperative chemotherapy and radiotherapy, and ultimately survival, remains inadequately defined...
April 17, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28427329/cross-disorder-comparative-analysis-of-comorbid-conditions-reveals-novel-autism-candidate-genes
#8
Leticia Diaz-Beltran, Francisco J Esteban, Maya Varma, Alp Ortuzk, Maude David, Dennis P Wall
BACKGROUND: Numerous studies have highlighted the elevated degree of comorbidity associated with autism spectrum disorder (ASD). These comorbid conditions may add further impairments to individuals with autism and are substantially more prevalent compared to neurotypical populations. These high rates of comorbidity are not surprising taking into account the overlap of symptoms that ASD shares with other pathologies. From a research perspective, this suggests common molecular mechanisms involved in these conditions...
April 20, 2017: BMC Genomics
https://www.readbyqxmd.com/read/28425688/pediatric-epilepsy-and-psychiatric-comorbidity-preliminary-observational-data-from-a-prospective-study
#9
Michela Gatta, Alessia Raffagnato, Stefania Mannarini, Laura Balottin, Irene Toldo, Marilena Vecchi, Clementina Boniver
BACKGROUND: Several studies have confirmed psychiatric comorbidity and a worse quality of life in children with epilepsy, but the clinical assessment and monitoring of these patients often pays insufficient attention to their psychological aspects alongside their neurological issues. The present study aims to describe the distribution of psychopathologies and their clinical evolution over 18 months in a sample of children followed up since the onset of their epilepsy. METHODS: After being diagnosed with epilepsy, 49 subjects (age 4-18y) were followed up with psychiatric and psychological assessments based on the use of dimensional and categorical psychometric tools...
April 20, 2017: Minerva Pediatrica
https://www.readbyqxmd.com/read/28425334/remifentanil-for-sedation-of-children-with-traumatic-brain-injury
#10
James L Hungerford, Nicole O'Brien, Melissa Moore-Clingenpeel, Eric A Sribnick, Cheryl Sargel, Mark Hall, Jeffrey R Leonard, Joseph D Tobias
OBJECTIVE: To determine whether remifentanil would provide adequate sedation while allowing frequent and reproducible neurologic assessments in children admitted to the pediatric intensive care unit (PICU) with traumatic brain injury (TBI) during mechanical ventilation. DESIGN: Retrospective review. SETTING: Tertiary care PICU. PATIENTS: Thirty-eight patients over a 30-month period. MEASUREMENTS AND MAIN RESULTS: Median age was 9 years (interquartile range [IQR] 2...
January 1, 2017: Journal of Intensive Care Medicine
https://www.readbyqxmd.com/read/28423808/security-policy-and-infrastructure-in-the-context-of-a-multi-centeric-information-system-dedicated-to-autism-spectrum-disorder
#11
Mohamed Ben Said, Laurence Robel, Bernard Golse, Jean Philippe Jais
Autism spectrum disorders (ASD) are complex neuro-developmental disorders affecting children in their early age. The diagnosis of ASD relies on multidisciplinary investigations, in psychiatry, neurology, genetics, electrophysiology, neuro-imagery, audiology and ophthalmology. In order to support clinicians, researchers and public health decision makers, we designed an information system dedicated to ASD, called TEDIS. TEDIS was designed to manage systematic, exhaustive and continuous multi-centric patient data collection via secured Internet connections...
2017: Studies in Health Technology and Informatics
https://www.readbyqxmd.com/read/28423318/oligodendrocyte-nf1-controls-aberrant-notch-activation-and-regulates-myelin-structure-and-behavior
#12
Alejandro López-Juárez, Haley E Titus, Sadiq H Silbak, Joshua W Pressler, Tilat A Rizvi, Madeleine Bogard, Michael R Bennett, Georgianne Ciraolo, Michael T Williams, Charles V Vorhees, Nancy Ratner
The RASopathy neurofibromatosis type 1 (NF1) is one of the most common autosomal dominant genetic disorders. In NF1 patients, neurological issues may result from damaged myelin, and mice with a neurofibromin gene (Nf1) mutation show white matter (WM) defects including myelin decompaction. Using mouse genetics, we find that altered Nf1 gene-dose in mature oligodendrocytes results in progressive myelin defects and behavioral abnormalities mediated by aberrant Notch activation. Blocking Notch, upstream mitogen-activated protein kinase (MAPK), or nitric oxide signaling rescues myelin defects in hemizygous Nf1 mutants, and pharmacological gamma secretase inhibition rescues aberrant behavior with no effects in wild-type (WT) mice...
April 18, 2017: Cell Reports
https://www.readbyqxmd.com/read/28421673/endothelial-erbb4-deficit-induces-alterations-in-exploratory-behavior-and-brain-energy-metabolism-in-mice
#13
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/28421542/neural-stem-cell-transplantation-promotes-functional-recovery-from-traumatic-brain-injury-via-brain-derived-neurotrophic-factor-mediated-neuroplasticity
#14
Liu-Lin Xiong, Yue Hu, Piao Zhang, Zhuo Zhang, Li-Hong Li, Guo-Dong Gao, Xin-Fu Zhou, Ting-Hua Wang
Traumatic brain injury (TBI) induces cognitive impairments, motor and behavioral deficits. Previous evidences have suggested that neural stem cell (NSC) transplantation could facilitate functional recovery from brain insults, but their underlying mechanisms remains to be elucidated. Here, we established TBI model by an electromagnetic-controlled cortical impact device in the rats. Then, 5 μl NSCs (5.0 × 10(5)/μl), derived from green fluorescent protein (GFP) transgenic mouse, was transplanted into the traumatic brain regions of rats at 24 h after injury...
April 18, 2017: Molecular Neurobiology
https://www.readbyqxmd.com/read/28420973/no-overt-effects-of-a-6-week-exergame-training-on-sensorimotor-and-cognitive-function-in-older-adults-a-preliminary-investigation
#15
Madeleine Ordnung, Maike Hoff, Elisabeth Kaminski, Arno Villringer, Patrick Ragert
Several studies investigating the relationship between physical activity and cognition showed that exercise interventions might have beneficial effects on working memory, executive functions as well as motor fitness in old adults. Recently, movement based video games (exergames) have been introduced to have the capability to improve cognitive function in older adults. Healthy aging is associated with a loss of cognitive, as well as sensorimotor functions. During exergaming, participants are required to perform physical activities while being simultaneously surrounded by a cognitively challenging environment...
2017: Frontiers in Human Neuroscience
https://www.readbyqxmd.com/read/28420888/global-gene-expression-profiling-of-healthy-human-brain-and-its-application-in-studying-neurological-disorders
#16
Simarjeet K Negi, Chittibabu Guda
Brain function is governed by precise regulation of gene expression across its anatomically distinct structures; however, the expression patterns of genes across hundreds of brain structures are not clearly understood. Here, we describe a gene expression model, which is representative of the healthy human brain transcriptome by using data from the Allen Brain Atlas. Our in-depth gene expression profiling revealed that 84% of genes are expressed in at least one of the 190 brain structures studied. Hierarchical clustering based on gene expression profiles delineated brain regions into structurally tiered spatial groups and we observed striking enrichment for region-specific processes...
April 18, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28419682/game-theoretical-mapping-of-causal-interactions-underlying-visuo-spatial-attention-in-the-human-brain-based-on-stroke-lesions
#17
Monica N Toba, Melissa Zavaglia, Federica Rastelli, Romain Valabrégue, Pascale Pradat-Diehl, Antoni Valero-Cabré, Claus C Hilgetag
Anatomical studies conducted in neurological conditions have developed our understanding of the causal relationships between brain lesions and their clinical consequences. The analysis of lesion patterns extended across brain networks has been particularly useful in offering new insights on brain-behavior relationships. Here we applied multiperturbation Shapley value Analysis (MSA), a multivariate method based on coalitional game theory inferring causal regional contributions to specific behavioral outcomes from the characteristic functional deficits after stroke lesions...
April 17, 2017: Human Brain Mapping
https://www.readbyqxmd.com/read/28419544/adults-born-preterm-a-review-of-general-health-and-system-specific-outcomes
#18
REVIEW
Tonse N K Raju, Sonia Buist, Carol J Blaisdell, Marva Moxey-Mims, Saroj Saigal
In this review of 126 publications, we report that an overwhelming majority of adults born at preterm gestations remain healthy and well. However, a small, but a significant fraction of them remain at higher risk for neurological, personality and behavioral abnormalities, cardio-pulmonary functional limitations, systemic hypertension, and metabolic syndrome compared to their term-born counterparts. The magnitude of increased risk differed across organ systems, and varied across reports. The risks were proportional to the degree of prematurity at birth and seemed to occur more frequently among preterm infants born in the final two decades of the 20(th) century and later...
April 17, 2017: Acta Paediatrica
https://www.readbyqxmd.com/read/28419177/interpreting-patterns-of-low-scores-on-the-nih-toolbox-cognition-battery
#19
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/28418398/intranasal-oxytocin-enhances-intrinsic-corticostriatal-functional-connectivity-in-women
#20
R A I Bethlehem, M V Lombardo, M-C Lai, B Auyeung, S K Crockford, J Deakin, S Soubramanian, A Sule, P Kundu, V Voon, S Baron-Cohen
Oxytocin may influence various human behaviors and the connectivity across subcortical and cortical networks. Previous oxytocin studies are male biased and often constrained by task-based inferences. Here, we investigate the impact of oxytocin on resting-state connectivity between subcortical and cortical networks in women. We collected resting-state functional magnetic resonance imaging (fMRI) data on 26 typically developing women 40 min following intranasal oxytocin administration using a double-blind placebo-controlled crossover design...
April 18, 2017: Translational Psychiatry
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