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https://www.readbyqxmd.com/read/28802139/analysis-of-neurobehavioural-data-by-chemometric-methods-in-ecotoxicological-studies
#1
Cristian Gómez-Canela, Eva Prats, Romà Tauler, Demetrio Raldúa
Incorporation of chemometric tools in behavioural data management workflows allows for the early identification of most relevant endpoints complementarily to statistical confirmatory approaches. In this work, the effects of two model neurotoxicants, chlorpyrifos (CPF) and nicotine, exposures on behavioural profiles of adult zebrafish at three different times (2, 6 and 24h) were evaluated using open field test (OFT) paradigm experiments. Two chemometric methods like Principal Component Analysis (PCA) and Analysis of Variance-Simultaneous Component Analysis (ASCA) have been used to interpret the changes observed in the obtained behavioural data...
August 9, 2017: Ecotoxicology and Environmental Safety
https://www.readbyqxmd.com/read/28796376/neuropsychiatric-adverse-events-of-antiepileptic-drugs-in-brain-tumour-related-epilepsy-an-italian-multicentre-prospective-observational-study
#2
C Bedetti, M Romoli, M Maschio, C Di Bonaventura, E Nardi Cesarini, P Eusebi, S Siliquini, S Dispenza, P Calabresi, C Costa
BACKGROUND AND PURPOSE: We assessed the prevalence and magnitude of neuropsychiatric adverse events (NPAEs) associated with antiepileptic drugs (AEDs) among patients with brain tumour-related epilepsy (BTRE). METHODS: This observational, prospective, multicentre study enrolled 259 patients with BTRE after neurosurgery. All patients received AED monotherapy. Efficacy was assessed through clinical diaries, whereas NPAEs were collected using the Neuropsychiatric Inventory Test-12 questionnaire at baseline and after 5 months...
August 10, 2017: European Journal of Neurology: the Official Journal of the European Federation of Neurological Societies
https://www.readbyqxmd.com/read/28782143/dynamics-of-cerebral-responses-to-sustained-attention-performance-during-one-night-of-sleep-deprivation
#3
Yuanqiang Zhu, Yibin Xi, Ningbo Fei, Yuchen Liu, Xinxin Zhang, Lin Liu, Ziliang Xu, Jinbo Sun, Xuejuan Yang, Hong Yin, Jie Tian, Wei Qin
Total sleep deprivation (TSD) is increasingly common in modern society bringing various neurobehavioural effects. Dynamic changes of behaviour performances during TSD have been reported extensively, while the cerebral activation underlying such changes have not been elucidated clearly. This study aimed to investigate dynamic changes in cerebral responses to the fastest and slowest psychomotor vigilance task (PVT) trials during TSD. Thirty-six healthy subjects with intermediate chronotype performed the PVT while undergoing functional magnetic resonance imaging every 2 h from 22:00 hours on the first day to 06:00 hours on the second day (i...
August 6, 2017: Journal of Sleep Research
https://www.readbyqxmd.com/read/28762872/the-role-of-the-smart-and-whim-in-behavioural-assessment-of-disorders-of-consciousness-clinical-utility-and-scope-for-a-symbiotic-relationship
#4
Ann-Marie Morrissey, Helen Gill-Thwaites, Barbara Wilson, Rachel Leonard, Lindsay McLellan, Amy Pundole, Agnes Shiel
As the prevalence and incidence of disorders of consciousness (DoC) increase, researchers and clinicians are tasked with developing best practice assessment techniques. Neurobehavioural assessment remains the most clinically available method of measuring consciousness. Neuroimaging and other physiological measurements are demonstrating promise in supporting this assessment but many of these techniques require further research and are not widely available in sub-acute and long-term care settings. No study to date has explored in-depth complementary use of multiple neurobehavioural assessments in aiding beside assessment of consciousness...
August 1, 2017: Neuropsychological Rehabilitation
https://www.readbyqxmd.com/read/28743991/altered-visual-cortical-processing-in-a-mouse-model-of-mecp2-duplication-syndrome
#5
Dinghong Zhang, Bin Yu, Jing Liu, Weiqian Jiang, Taorong Xie, Ran Zhang, Dali Tong, Zilong Qiu, Haishan Yao
As an epigenetic modulator of gene expression, Methyl-CpG binding protein 2 (MeCP2) is essential for normal neurological function. Dysfunction of MeCP2 is associated with a variety of neurological disorders. MECP2 gene duplication in human causes neuropsychiatric symptoms such as mental retardation and autism. MeCP2 overexpression in mice results in neurobehavioural disorders, dendritic abnormalities, and synaptic defects. However, how gain of MeCP2 function influences cortical processing of sensory information remains unclear...
July 25, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28710219/comparison-of-propofol-and-dexmedetomidine-infused-overnight-to-treat-hyperactive-and-mixed-icu-delirium-a-protocol-for-the-basel-prodex-clinical-trial
#6
Alexa Hollinger, Katrin Ledergerber, Stefanie von Felten, Raoul Sutter, Stephan Rüegg, Lukas Gantner, Sibylle Zimmermann, Andrea Blum, Luzius A Steiner, Stephan Marsch, Martin Siegemund
BACKGROUND/OBJECTIVES: Delirium is a neurobehavioural disturbance that frequently develops particularly in the intensive care unit (ICU) population. It was first described more than half a century ago, where it was already discovered as a state that might come along with serious complications such as prolonged ICU and hospital stay, reduced quality of life and increased mortality. However, in most cases, there is still lack of proof for causal relationship. Its presence frequently remains unrecognised due to suggested predominance of the hypoactive form...
July 13, 2017: BMJ Open
https://www.readbyqxmd.com/read/28696430/neuropathology-of-suicide-recent-findings-and-future-directions
#7
P-E Lutz, N Mechawar, G Turecki
Suicide is a major public health concern and a leading cause of death in most societies. Suicidal behaviour is complex and heterogeneous, likely resulting from several causes. It associates with multiple factors, including psychopathology, personality traits, early-life adversity and stressful life events, among others. Over the past decades, studies in fields ranging from neuroanatomy, genetics and molecular psychiatry have led to a model whereby behavioural dysregulation, including suicidal behaviour (SB), develops as a function of biological adaptations in key brain systems...
July 11, 2017: Molecular Psychiatry
https://www.readbyqxmd.com/read/28669901/maternal-alcohol-binge-drinking-induces-persistent-neuroinflammation-associated-with-myelin-damage-and-behavioural-dysfunctions-in-offspring-mice
#8
Lídia Cantacorps, Silvia Alfonso-Loeches, Maria Moscoso-Castro, Javier Cuitavi, Irene Gracia-Rubio, Raúl López-Arnau, Elena Escubedo, Consuelo Guerri, Olga Valverde
Alcohol binge drinking is on the increase in the young adult population, and consumption during pregnancy can be deleterious for foetal development. Maternal alcohol consumption leads to a wide range of long-lasting morphological and behavioural deficiencies known as foetal alcohol spectrum disorders (FASD), associated with neurodevelopmental disabilities. We sought to test the effects of alcohol on neuroimmune system activation and its potential relation to alcohol-induced neurodevelopmental and persistent neurobehavioural effects in offspring after maternal alcohol binge drinking during the prenatal period or in combination with lactation...
June 29, 2017: Neuropharmacology
https://www.readbyqxmd.com/read/28665691/dietary-dha-bioaccessibility-and-neurobehavioural-development-in-children
#9
Carlos Cardoso, Cláudia Afonso, Narcisa M Bandarra
DHA is a key nutritional n-3 polyunsaturated fatty acid (n-3 PUFA) and needs to be supplied by the human diet. High levels of DHA intake appear to reduce the risk of depression, bipolar disorder, and mood disorders. On the basis of these connections between DHA and neurological health, this paper reviews what is currently known about DHA and children neurodevelopment as well as the benefits of DHA intake to prevention of autism and behaviour disorders through a selective and representative revision of different papers ranging from pure observational studies to randomized controlled trials (RCTs)...
June 30, 2017: Critical Reviews in Food Science and Nutrition
https://www.readbyqxmd.com/read/28650335/development-of-ad-like-symptoms-following-co-administration-of-alcl3-and-d-gal-in-rats-a-neurochemical-biochemical-and-behavioural-study
#10
Laraib Liaquat, Saara Ahmad, Sadia Sadir, Zehra Batool, Saima Khaliq, Saiqa Tabassum, Shaista Emad, Syeda Madiha, Sidrah Shahzad, Saida Haider
Alzheimer's disease (AD) is an age-related neurodegenerative disorder associated with neurochemical and neurobehavioural alterations. Aluminium (Al) is considered as a contributing factor in the etiology of several neurodegenerative disorders like AD. D-galactose (D-gal) is a physiological nutrient but over supply induces some neurochemical and biochemical changes that exacerbate natural aging process. In this study, we aimed to develop AD animal model by co-administration of Al and D-gal in rats. Male albino Wistar rats were intraperitoneally injected with AlCl3 and D-gal at a dose of 150mg/kg and 300mg/kg respectively for one week...
March 2017: Pakistan Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/28630378/randomised-controlled-trial-of-the-efficacy-of-a-blue-enriched-light-intervention-to-improve-alertness-and-performance-in-night-shift-workers
#11
Tracey L Sletten, Suzanne Ftouni, Christian L Nicholas, Michelle Magee, Ronald R Grunstein, Sally Ferguson, David J Kennaway, Darren O'Brien, Steven W Lockley, Shantha M W Rajaratnam
OBJECTIVES: Night workers often experience high levels of sleepiness due to misalignment of the sleep-wake cycle from the circadian pacemaker, in addition to acute and chronic sleep loss. Exposure to light, in particular short wavelength light, can improve alertness and neurobehavioural performance. This randomised controlled trial examined the efficacy of blue-enriched polychromatic light to improve alertness and neurobehavioural performance in night workers. DESIGN: Participants were 71 night shift workers (42 males; 32...
June 19, 2017: Occupational and Environmental Medicine
https://www.readbyqxmd.com/read/28612134/ketamine-induced-behavioural-and-brain-oxidative-changes-in-mice-an-assessment-of-possible-beneficial-effects-of-zinc-as-mono-or-adjunct-therapy
#12
Olakunle James Onaolapo, Olayemi Quyyom Ademakinwa, Temitayo Opeyemi Olalekan, Adejoke Yetunde Onaolapo
RATIONALE: We studied the influence of zinc, haloperidol or olanzapine on neurobehaviour (open-field, radial arm maze and elevated plus maze) and brain antioxidant status in vehicle- or ketamine-treated mice, with the aim of ascertaining the potentials of zinc in counteracting ketamine's effects. OBJECTIVES: Experiment 1 assessed the effects of zinc in healthy animals and the relative degrees of modulation of ketamine's effects by zinc, haloperidol or olanzapine, respectively...
June 14, 2017: Psychopharmacology
https://www.readbyqxmd.com/read/28607558/hashimoto-s-encephalopathy-presenting-with-unusual-behavioural-disturbances-in-an-adolescent-girl
#13
Murugan Selvaraj Karthik, Kulothungan Nandhini, Viswanath Subashini, Ramasamy Balakrishnan
Hashimoto's encephalopathy (HE) is a rare autoimmune disorder with neurological and neuropsychiatric manifestations and elevated titres of anti-thyroid antibodies. Here we are reporting a case of HE in a 19-year-old girl who presented with seizure-like episodes, confusion, and behavioural disturbances with catatonic symptoms such as posturing, echopraxia, echolalia, and ambivalence. Patient did not respond to antipsychotics and anticonvulsants. On further investigation, patient was found to have high serum anti-TPO antibodies of about 1261 U/mL with euthyroid status, which supported a suspicion of HE...
2017: Case Reports in Medicine
https://www.readbyqxmd.com/read/28596566/high-dose-maternal-folic-acid-supplementation-before-conception-impairs-reversal-learning-in-offspring-mice
#14
Kristin S Henzel, Devon P Ryan, Susanne Schröder, Marco Weiergräber, Dan Ehninger
Maternal folic acid (FA) supplementation prior to and during gestation is recommended for the prevention of neural tube closure defects in the developing embryo. Prior studies, however, suggested that excessive FA supplementation during gestation can be associated with toxic effects on the developing organism. Here, we address whether maternal dietary folic acid supplementation at 40 mg/kg chow (FD), restricted to a period prior to conception, affects neurobehavioural development in the offspring generation...
June 8, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28595097/neuropredictors-of-oromotor-feeding-impairment-in-12month-old-children
#15
Katherine Sanchez, Angela T Morgan, Justine M Slattery, Joy E Olsen, Katherine J Lee, Peter J Anderson, Deanne K Thompson, Lex W Doyle, Jeanie L Y Cheong, Alicia J Spittle
BACKGROUND: Feeding impairment is prevalent in children with neurodevelopmental issues. Neuroimaging and neurobehavioural outcomes at term are predictive of later neuromotor impairment, but it is unknown whether they predict feeding impairment. AIMS: To determine whether neurobehavior and brain magnetic resonance imaging (MRI) at term predict oromotor feeding at 12months in preterm and term-born children. STUDY DESIGN: Prospective cohort study...
June 5, 2017: Early Human Development
https://www.readbyqxmd.com/read/28511367/neurobehavioural-changes-in-a-hemiparkinsonian-rat-model-induced-by-rotenone
#16
REVIEW
Sukala Puthuparambil Maniyath, Narayanan Solaiappan, Muthusamy Rathinasamy
INTRODUCTION: Rotenone, a mitochondrial complex I inhibitor is used as a neurotoxin agent to reproduce the neuropathological, and behavioural feature of Parkinson's Disease (PD) in rat. Due to acute and chronic exposure of rotenone with various doses through different routes of administration, mortality is being reported. Low dose takes a longer duration to produce PD symptoms in animals. This present study was designed to create hemiparkinsonian 'partial' lesion model by rotenone at a single moderate dose in two sites of striatum in albino rats and also to assess its toxicity by behavioural parameters and by microscopic study...
March 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28498556/adaptive-and-maladaptive-functioning-in-kleefstra-syndrome-compared-to-other-rare-genetic-disorders-with-intellectual-disabilities
#17
Karlijn Vermeulen, Anneke de Boer, Joost G E Janzing, David A Koolen, Charlotte W Ockeloen, Marjolein H Willemsen, Floor M Verhoef, Patricia A M van Deurzen, Linde van Dongen, Hans van Bokhoven, Jos I M Egger, Wouter G Staal, Tjitske Kleefstra
Detailed neurobehavioural profiles are of major value for specific clinical management, but have remained underexposed in the population with intellectual disabilities (ID). This was traditionally classified based on IQ level only. Rapid advances in genetics enable etiology based stratification in the majority of patients, which reduces clinical heterogeneity. This paper illustrates that specific profiles can be obtained for rare syndromes with ID. Our main aim was to study (mal)adaptive functioning in Kleefstra Syndrome (KS) by comparing and contrasting our findings to three other subgroups: Koolen-de Vries Syndrome, GATAD2B-related syndrome, and a mixed control group of individuals with ID...
May 12, 2017: American Journal of Medical Genetics. Part A
https://www.readbyqxmd.com/read/28488395/shorter-duration-of-non-rapid-eye-movement-sleep-slow-waves-in-epha4-knockout-mice
#18
Marlène Freyburger, Gaétan Poirier, Julie Carrier, Valérie Mongrain
Slow waves occurring during non-rapid eye movement sleep have been associated with neurobehavioural performance and memory. In addition, the duration of previous wakefulness and sleep impacts characteristics of these slow waves. However, molecular mechanisms regulating the dynamics of slow-wave characteristics remain poorly understood. The EphA4 receptor regulates glutamatergic transmission and synaptic plasticity, which have both been linked to sleep slow waves. To investigate if EphA4 regulates slow-wave characteristics during non-rapid eye movement sleep, we compared individual parameters of slow waves between EphA4 knockout mice and wild-type littermates under baseline conditions and after a 6-h sleep deprivation...
May 10, 2017: Journal of Sleep Research
https://www.readbyqxmd.com/read/28482003/coenzyme-q10-reduces-sevoflurane-induced-cognitive-deficiency-in-young-mice
#19
G Xu, H Lu, Y Dong, D Shapoval, S G Soriano, X Liu, Y Zhang, Z Xie
Background.: Anaesthesia can induce cognitive deficiency in young rodents and monkeys. Mitochondrial dysfunction contributes to the anaesthesia-induced neurotoxicity and neurobehavioural deficits. We therefore assessed the effects of the mitochondrial energy enhancer coenzyme Q 10 (CoQ 10 ) on anaesthesia-induced cognitive deficiency in young mice to investigate the role of mitochondrial dysfunction. Methods.: Young mice ( n =134) were randomly assigned into the following four groups: control plus corn oil vehicle (60% oxygen); 3% sevoflurane [2 h daily on postnatal day (P) 6, 7, and 8] plus vehicle; CoQ 10 (50 mg kg -1 ) plus vehicle; or 3% sevoflurane plus CoQ 10 plus vehicle...
May 7, 2017: British Journal of Anaesthesia
https://www.readbyqxmd.com/read/28481889/abnormal-neurobehaviour-and-impaired-memory-function-as-a-consequence-of-toxocara-canis-as-well-as-toxocara-cati-induced-neurotoxocarosis
#20
Elisabeth Janecek, Patrick Waindok, Marion Bankstahl, Christina Strube
BACKGROUND: Neuroinvasive larvae of the worldwide occurring zoonotic roundworms Toxocara canis and T. cati may induce neurotoxocarosis (NT) in humans, provoking a variety of symptoms including cognitive deficits as well as neurological dysfunctions. An association with neuropsychological disorders has been discussed. Similar symptoms have been described in T. canis-infected mice, whereas data on T. cati-induced NT are rare. Therefore, it was aimed to obtain insights into the impact on neurobehaviour as well as progression of neurological symptoms and behavioural alterations during the course of NT directly comparing T...
May 2017: PLoS Neglected Tropical Diseases
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